CN104839876B - Displacement output bracket, early warning device and silk drying machine using the output bracket - Google Patents

Abstract

The present invention relates to the prior-warning device and cut-tobacco drier of a kind of displacement output bracket and the use output bracket, displacement output bracket includes base, floating assembly has floating shelf along the vertical direction on base, floating shelf, which is provided with, to be respectively used to roll the left and right pushing tow wheel coordinated with the left and right sides of the outer peripheral face of corresponding drying cylinder, and floating shelf has linearly operating output end.When in use, when drying cylinder play, the corresponding pushing tow wheel of left and right sides pushing tow of the outer peripheral face of drying cylinder, two pushing tow wheels drive the linearly operating output end movement of floating shelf, and which achieves the purpose for the displacement that drying cylinder is exported in drying cylinder play.When drying cylinder play is when being displaced to up to setting value, linearly operating output end triggers warning piece, warning piece alarm, so that the purpose for reaching setting value alarm in the displacement of downward play in drying cylinder is reached, in order to which operating personnel adjust drying cylinder in time.

Description

Displacement output bracket, early warning device and silk drying machine using the output bracket

technical field

The invention relates to a displacement output bracket, an early warning device and a silk drying machine using the output bracket.

Background technique

Shredded tobacco dryer is the key equipment in the cigarette shredded production line, which is used for drying shredded tobacco (shredded tobacco leaves, shredded tobacco stems). The silk drying machine in the prior art includes a drying cylinder, a frame and a transmission system. The drying cylinder includes a drying cylinder whose axis extends along the front and rear directions. The drying cylinder is provided with a large gear, and the drying cylinder is also provided with front and rear raceways. There are four support rollers on the frame, and the four support rollers form a front and rear roller group set at intervals in front and back. The two support rollers in each roller group are set on the left and right sides of the drying cylinder. sides. During installation, the drying cylinder is supported on four supporting rollers, and each supporting roller is rollingly matched with the corresponding raceway respectively. The axis of the drying cylinder forms an included angle of 2° with the horizontal plane, and the inlet of the drying cylinder is higher and the outlet is lower. The wire drying machine also includes front and rear stop wheels installed on the front and rear sides of the large gear to prevent the drying cylinder from moving in the axial direction during operation.

When in use, the small gear of the transmission system is meshed with the large gear to drive the rotation of the entire drying cylinder, and the shredded tobacco in the drying cylinder is transported to the discharge port of the drying cylinder while rotating with the drying cylinder. The standard design requirement is that the four contact lines between the four supporting rollers and the raceway should be on the same plane parallel to the drying cylinder, but in actual use, due to the existence of assembly errors, it may cause the four supporting rollers to The four contact lines of the raceway are not on the same plane, causing the support roller to contact with the displacement point of the raceway of the dryer, and the contact points are not on the same plane. If the connection of the four contact points is a spiral line, the dryer is rotating At the same time, the outer circle size of the four supporting rollers is the same, and any unevenness of the surface wear will cause the circle size to appear. error, wear of the axle of the support roller and damage to the bearing, too loose assembly of the support roller and the axle, resulting in sliding displacement of the roller, loosening of the fastening bolts of the support bearing seat of the roller, and wrong installation position when replacing the support roller or bearing. The drying cylinder moves left and right. Due to the heavy weight of the drying cylinder itself, if the drying cylinder moves greatly in the up and down direction or left and right directions, the drying cylinder will strongly hit the support roller, and the support roller and the axle of the support roller will wear out rapidly, and the support roller The replacement frequency of the roller is high, which affects the production progress. If the supporting roller is not replaced in time, it is easy to cause equipment failure and downtime. After research, the staff found that if the movement of the dryer cylinder is within the allowable range, the wear of the support rollers will be greatly reduced, so that the equipment needs to be shut down for maintenance after the movement of the dryer cylinder exceeds the allowable range. In the existing technology, there is no early warning device for monitoring the movement range of the dryer, which makes it impossible for operators to judge the timing of equipment maintenance.

Contents of the invention

The purpose of the present invention is to provide a displacement output bracket capable of outputting the movement displacement of the drying cylinder; the purpose of the present invention is also to provide an early warning device and a silk drying machine using the displacement output bracket.

In order to achieve the above object, the technical scheme of the displacement output support in the present invention:

A displacement output bracket, including a base, on which a floating frame is installed floating along the up and down direction, and the floating frame is provided with left and right pushing wheels respectively used for rolling and cooperating with the left and right sides of the outer peripheral surface of the corresponding drying cylinder. The rack has a linear action output.

The axles of each pushing wheel are spaced up and down from the output end of the linear action, and the output end of the linear action and the axles of each pushing wheel are guided up and down to move and assembled on the base.

The floating frame includes a frame body, and the frame body includes a horizontal section arranged horizontally. The horizontal section is provided with two vertical sections that are spaced from left to right and cantilever upwards. The horizontal section and the two vertical sections enclose an inner concave cavity with an opening facing upward. , the inner concave cavity forms an escape space for avoiding the drying cylinder, the left and right push wheels are respectively arranged on the corresponding vertical sections, and the linear action output end is arranged in the middle of the lower end of the horizontal section.

The base includes guide plates arranged at intervals below the horizontal section, and the output end of the linear action is a rod-shaped structure that guides up and down on the guide plate. Return spring between segment and guide plate.

The base also includes a mounting plate arranged at intervals below the guide plate, and the mounting plate is provided with a mounting structure for installing an alarm component triggered by a linear motion output end.

The base includes upright left front and left rear support plates for setting correspondingly to the left push wheel. Both the left front and left rear support plates are plate-shaped structures whose plate thickness extends along the front and rear directions. The left front and left rear support plates are both front and rear There is a guide hole whose guide direction is up and down, and the front and rear ends of the wheel shaft of the left push wheel move up and down respectively and are assembled in the corresponding guide hole.

The technical scheme of early warning device among the present invention is:

The early warning device includes a displacement output bracket, including a base, and a floating frame is installed on the base to float up and down. The floating frame has a linear motion output end, and the early warning device also includes an alarm component for being triggered by the linear motion output end when the linear motion output end of the displacement output bracket reaches a set moving range.

The axles of each pushing wheel are spaced up and down from the output end of the linear action, and the output end of the linear action and the axles of each pushing wheel are guided up and down to move and assembled on the base.

The floating frame includes a frame body, and the frame body includes a horizontal section arranged horizontally. The horizontal section is provided with two vertical sections that are spaced from left to right and cantilever upwards. The horizontal section and the two vertical sections enclose an inner concave cavity with an opening facing upward. , the inner concave cavity forms an escape space for avoiding the drying cylinder, the left and right push wheels are respectively arranged on the corresponding vertical sections, and the linear action output end is arranged in the middle of the lower end of the horizontal section.

The base includes guide plates arranged at intervals below the horizontal section, and the output end of the linear action is a rod-shaped structure that guides up and down on the guide plate. Return spring between segment and guide plate.

The base also includes a mounting plate arranged at intervals below the guide plate, and the mounting plate is provided with a mounting structure for installing an alarm component triggered by a linear motion output end.

The base includes upright left front and left rear support plates for setting correspondingly to the left push wheel. Both the left front and left rear support plates are plate-shaped structures whose plate thickness extends along the front and rear directions. The left front and left rear support plates are both front and rear There is a guide hole whose guide direction is up and down, and the front and rear ends of the wheel shaft of the left push wheel move up and down respectively and are assembled in the corresponding guide hole.

The technical solution of the silk drying machine in the present invention is as follows: the silk drying machine includes a frame on which a drying cylinder with an axis extending along the front and rear directions is installed, the red silk machine also includes an early warning device, the early warning device includes a displacement output bracket, and includes a base, The base is equipped with a floating frame that floats up and down. The floating frame is equipped with left and right push wheels that are respectively used to roll and cooperate with the left and right sides of the outer peripheral surface of the corresponding drying cylinder. The floating frame has a linear action output end and an early warning device. It also includes an alarm component for being triggered by the linear motion output end when the linear motion output end of the displacement output bracket reaches the set moving range.

The axles of each pushing wheel are spaced up and down from the output end of the linear action, and the output end of the linear action and the axles of each pushing wheel are guided up and down to move and assembled on the base.

The floating frame includes a frame body, and the frame body includes a horizontal section arranged horizontally. The horizontal section is provided with two vertical sections that are spaced from left to right and cantilever upwards. The horizontal section and the two vertical sections enclose an inner concave cavity with an opening facing upward. , the inner concave cavity forms an escape space for avoiding the drying cylinder, the left and right push wheels are respectively arranged on the corresponding vertical sections, and the linear action output end is arranged in the middle of the lower end of the horizontal section.

The base includes guide plates arranged at intervals below the horizontal section, and the output end of the linear action is a rod-shaped structure that guides up and down on the guide plate. Return spring between segment and guide plate.

The base also includes a mounting plate arranged at intervals below the guide plate, and the mounting plate is provided with a mounting structure for installing an alarm component triggered by a linear motion output end.

The base includes upright left front and left rear support plates for setting correspondingly to the left push wheel. Both the left front and left rear support plates are plate-shaped structures whose plate thickness extends along the front and rear directions. The left front and left rear support plates are both front and rear There is a guide hole whose guide direction is up and down, and the front and rear ends of the wheel shaft of the left push wheel move up and down respectively and are assembled in the corresponding guide hole.

An early warning device of the present invention includes a floating frame, and the upper end of the floating frame is provided with left and right pushing wheels. Push the corresponding push wheels, and the two push wheels will drive the floating frame to move accordingly. At the same time, the push wheels will not affect the normal rotation of the drying cylinder, which realizes the purpose of outputting the movement displacement of the drying cylinder . When the movement displacement of the drying cylinder reaches the set value, the output terminal of the linear action reaches the set movement range. The set movement range refers to the allowable movement range of the drying cylinder. The output terminal of the linear movement triggers the alarm component, and the alarm component alarms. The operator can adjust the drying cylinder in time to avoid excessive wear and impact of the drying cylinder on the support roller, which ensures the service life of the support roller and reduces the maintenance frequency of the whole machine.

Furthermore, the output end of the linear action and each wheel shaft are moved up and down and assembled on the base, and the wheel shafts of each push wheel are arranged at intervals up and down from the output end of the linear action. When the size is large, it can prevent the floating frame from skewing, and ensure the accuracy of the output displacement of the linear action output end of the floating frame.

Further, the left and right pushing wheels are respectively installed on two vertical sections, and the horizontal section and the two vertical sections enclose an inner concave cavity with the opening facing upwards, and the inner concave cavity forms an avoidance space for avoiding the drying cylinder, which This setting not only provides the installation position for the left and right push wheels, but also ensures the real-time monitoring of the up and down movement of the drying cylinder, and can also prevent the lower end of the outer peripheral surface of the drying cylinder from colliding with the floating frame when the drying cylinder moves up and down. , the phenomenon of damage to the floating frame occurs, which is conducive to prolonging the service life of the floating frame. At the same time, a downwardly overhanging push rod is provided in the middle of the lower end of the horizontal section, so that in the left and right directions, the distances between each push wheel and the push rod are equal, which can prevent the floating frame from skewing left and right. In addition, this arrangement has a simple structure, which is beneficial to reduce the cost of processing and manufacturing.

Further, since the guide plate and the mounting plate are arranged at intervals up and down, the alarm component is installed on the mounting plate, and in the up and down direction, the guide plate can block the alarm component, and the alarm component can only be triggered after the linear action output end passes through the piercing hole. The phenomenon of false alarm after the alarm component is collided by the operator is avoided, and misoperation is prevented.

Description of drawings

Fig. 1 is a schematic structural view of the early warning device in Embodiment 1 of the silk drying machine of the present invention (the left rear and right rear support plates are removed);

Fig. 2 is a left side view of Fig. 1 .

The names of reference signs in the figure are: 1 mounting plate, 2 left rear support plate, 3 right front support plate, 4 left front support plate, 5 left wheel shaft, 6 left push wheel, 7 position switch, 8 return spring, 9 guide plate , 10 left wheel frames, 11 push rods, 12 guide holes, 13 nuts, 14 floating frames, 15 right push wheels, 16 right axles, 17 right wheel frames, 14-1 horizontal section, 14-2 vertical section.

detailed description

The present invention provides an embodiment 1 of a silk drying machine: a silk drying machine includes a frame and an early warning device, the frame is equipped with a drying cylinder whose axis extends along the front and rear directions, and the axis of the drying cylinder is at an angle of 2° to the horizontal plane. Angle, the inlet of the dryer is higher and the outlet is lower.

The early warning device includes a displacement output bracket, and the displacement output bracket includes a base. A floating frame 14 is installed on the base to float up and down. The floating frame is provided with left push wheels for rolling and cooperating with the left and right sides of the outer peripheral surface of the drying cylinder respectively. 6, the right push wheel 15, the floating frame has a linear action output end that is the push rod 11. The early warning device also includes alarm means for being triggered by the linear action output.

The axles of each pushing wheel are spaced up and down from the output end of the linear action, and the output end of the linear action and the axles of each pushing wheel are respectively guided and moved with the base in the up and down direction. The guiding matching position between the wheel shaft of the push wheel and the base and the guiding matching position between the linear motion output end and the base form a triangular structure, which realizes the three-point guiding of the entire floating frame and ensures guiding stability and guiding accuracy.

The floating frame includes a frame body, and the frame body includes a horizontal section 14-1 arranged horizontally. The horizontal section is provided with two vertical sections 14-2 that are arranged at intervals from left to right and are all suspended upwards. The horizontal section and the two vertical sections form an opening. The first inner concave cavity faces upward, and the first inner concave cavity forms an escape space for avoiding the drying cylinder. Each vertical section includes a straight section and a U-shaped wheel frame located at the upper end of the straight section. The U-shaped wheel frame of the vertical section on the left side is the left wheel frame 10, and the U-shaped wheel frame of the vertical section on the right side is the right wheel frame 17. A connecting plate is supported and connected between the rear mounting ears, and the front and rear mounting ears and the connecting plate enclose a second inner concave cavity with an opening facing upward.

In this embodiment, the axle of the left pushing wheel is the left axle 5, the axis of the left axle extends along the front and rear directions, and the front and rear ends of the left axle pass through the front and rear ends of the left wheel frame 10 respectively. The axle of right pushing wheel is right axle 16, and the axis of right axle extends along front and back direction, and the front and back ends of right axle are passed by the front and back ends of right wheel frame 17 respectively.

The above-mentioned base includes a mounting plate 1 whose plate thickness extends in the up and down direction. The mounting plate is connected with the frame. The mounting plate is provided with a left front support plate 4 and a left rear support plate 2 corresponding to the left push wheel. The mounting plate Also be provided with the right front support plate 3 and the right rear support plate that are arranged correspondingly with the right push wheel. The four support plates are all plate-like structures with plate thicknesses extending along the front-to-rear direction vertically arranged on the mounting plate. The front left, rear left, front right, and rear right support plates all run through the front and rear guide holes 12 whose guiding direction is the up and down direction. , the front and rear ends of the left wheel shaft are respectively inserted in the guide holes of the left front and left rear support plates to move up and down to be assembled between the left front and left rear support plates. The front and rear piercing ends of the right wheel shaft are respectively inserted in the guide holes of the right front and right rear support plates to realize moving up and down between the right front and right rear support plates.

The push rod 11 is arranged in the middle of the lower end of the horizontal section. The above-mentioned base also includes a guide plate 9 positioned above the mounting plate and spaced from the mounting plate up and down. The above four support plates are fixedly connected together. A return spring is set on the push rod, and the return spring is set between the horizontal section and the guide plate. The above-mentioned alarm component includes a position switch 7 installed on the mounting plate, and the alarm component also includes a warning device electrically connected to the position switch. The position switch is used to cooperate with the limit stop of the push rod to carry out limit stop to the downward movement limit of the push rod. In this embodiment, the position switch is a contact switch, of course, in other embodiments, the position switch can also be a photoelectric switch or the like.

The guide plate is provided with a piercing hole corresponding to the position switch which penetrates up and down, and the push rod moves up and down to be assembled in the piercing hole. The push rod is sleeved with a return spring 8 for realizing the floating frame to float up and down, and the upper and lower ends of the return spring are press-fitted with the horizontal section and the guide plate respectively. The lower end of the push rod is screwed with a nut 13 after passing through the hole.

When this embodiment is in use, the above-mentioned early warning device is placed under the drying cylinder, and the mounting plate is connected with the frame. When the drying cylinder moves up and down and left and right, the left and right sides of the outer peripheral surface of the drying cylinder push the corresponding push wheels downward, and the two push wheels drive the floating frame to move downward, and the push rod is on the guide plate. When the up and down movement displacement or left and right movement displacement of the drying cylinder reaches the set value, the push rod also reaches the set movement range. The set movement range can be set according to the production needs. The push rod triggers the position switch, and the position switch controls the warning device to give an alarm and stop the silk drying machine. In other embodiments of the silk drying machine: when the entire displacement output bracket is arranged above the drying cylinder, that is, when the left and right push wheels are pushed and matched with the upper end of the drying cylinder, the return spring may not be provided, and the drying cylinder will move The movement can drive the left and right push wheels to move upwards, and the left and right push wheels can rely on self-resetting; the alarm component can also be not an electronic alarm such as a siren, for example, the alarm component can also be a bell. When the movement of the cylinder is relatively large, the push rod hits the bell and an alarm sounds, and the operator can stop the wire dryer for maintenance.

The present invention provides Embodiment 2 of a wire drying machine: the difference between this embodiment and Embodiment 1 is that the above-mentioned linear action output end can also adopt other structural forms, the return spring can also be arranged at other positions, and the base Including the U-shaped channel steel with the opening facing upwards, the length of the U-shaped channel steel extends along the left and right directions, the floating frame only includes a horizontal section and two vertical sections, the front and rear sides of the two vertical sections are planes perpendicular to the front and rear directions, and the two The front and rear sides of each upright section move up and down with the front and rear side inner walls of the U-shaped channel steel respectively. The upper end of the U-shaped channel steel is provided with a stopper between the two vertical sections of the floating frame to prevent the floating frame from falling out, and the bottom of the U-shaped channel steel is provided with a press fit with the lower end surface of the horizontal section of the floating frame Back-moving spring, the upper end of back-moving spring is fixed on the horizontal section of floating frame, and the lower end of back-moving spring is fixed on the groove bottom of U-shaped channel steel. The above-mentioned position switch is arranged on the bottom of the U-shaped channel steel, and the horizontal section of the floating frame forms the above-mentioned linear motion output end.

The present invention provides Embodiment 3 of a silk drying machine: the difference between this embodiment and Embodiment 2 is that the output end of the linear action can also adopt other structural forms, and the axles of each pushing wheel can be different from the linear action. The output ends are arranged at intervals. The two vertical sections mentioned above are all rod-shaped structures with a square cross-section whose axis extends along the vertical direction. The two vertical sections and the horizontal section are H-shaped. The position switch is set under one of the vertical sections. The upright section moves down to trigger the position switch, and the upright section forms the above-mentioned linear motion output end. The axles of the left and right pushing wheels are respectively arranged on the two vertical sections.

The present invention provides Embodiment 4 of a silk drying machine: the difference between this embodiment and Embodiment 1 is that the above-mentioned left wheel shaft can also adopt other structural forms to move up and down and be assembled on the base, and the base includes a The axis of the rear side of the wheel extends along the guide column up and down. The above-mentioned left wheel frame can also be eliminated. The front end of the left wheel shaft is fixed on the vertical section on the left side by welding. The guide wheel extending in the left and right directions has an annular groove arranged along the circumference of the guide wheel, and the annular groove cooperates with the guide column to guide and move up and down.

The above is a preferred embodiment of the present invention. In other embodiments, the floating frame can also adopt other structural forms. For example, the floating frame includes front and rear side plates whose plate thickness is arranged at intervals before and after and all extends along the front and rear direction. The upper end of the plate is equipped with an arc groove with the opening facing upwards to avoid the drying cylinder when the drying cylinder moves up and down. There are four supports between the front and rear side plates. The axes connecting the front and rear side plates are along the front and rear directions Extended connecting columns, four connecting columns form two connecting groups arranged at intervals left and right, each connecting group includes two connecting columns arranged at intervals up and down, and the left and right pushing wheels are respectively installed on the two connecting columns at the top .

In this embodiment, the limit switch is installed on the mounting plate by means of bolt connection, and the bolts on the mounting plate are perforated to form the installation structure of the alarm component. In other embodiments, the position switch can also be glued on the mounting plate. On the board, the upper board forms the above-mentioned installation structure. Those skilled in the art may also make equivalent replacements in different situations according to design common sense in this field, which are all within the protection scope of the present invention.

The implementation of the early warning device is shown in Figures 1-2: the specific structure of the early warning device is the same as that of the early warning device described in the embodiments of the silk dryers above, and will not be described in detail here.

The embodiment of the displacement output support is shown in Figures 1-2: the specific structure of the displacement output support is the same as the displacement output support described in the above embodiments of each silk drying machine, and will not be described in detail here.

Claims (7)

1. a kind of displacement output bracket, it is characterised in that：Including base, floating assembly has floating shelf along the vertical direction on base, Floating shelf, which is provided with, to be respectively used to roll the left and right pushing tow wheel coordinated, floating shelf with the left and right sides of the outer peripheral face of corresponding drying cylinder With the linearly operating output end for being exported the play displacement of drying cylinder；Floating shelf includes frame body, and frame body includes level The horizontal segment of setting, horizontal segment is provided with two or so the spaced settings sections overhang upwards, and horizontal segment and two erect Vertical section surrounds opening up inner cavity, and the inner cavity forms the avoidance space for avoiding drying cylinder, and left and right pushing tow wheel is set respectively Put and erect in correspondence in section, linearly operating output end is arranged in the middle part of the lower end of horizontal segment, linearly operating output end is used to trigger The warning piece being adapted to it.

2. displacement output bracket according to claim 1, it is characterised in that：The wheel shaft of each pushing tow wheel is defeated with linearly operating Go out above and below end and be arranged at intervals, guiding movement is assemblied on base the wheel shaft of linearly operating output end and each pushing tow wheel up and down.

3. displacement output bracket according to claim 1, it is characterised in that：The base includes being arranged at intervals at the water Guide plate below flat section, linearly operating output end is arranged in the rod-like structure on the guide plate for guiding along the vertical direction, Top is arranged with linearly operating output end mounted in the back-moving spring between horizontal segment and guide plate.

4. displacement output bracket according to claim 3, it is characterised in that：Base also includes being arranged at intervals under guide plate The installing plate of side, installing plate is provided with the mounting structure for being used for installing the warning piece triggered by linearly operating output end.

5. displacement output bracket according to claim 2, it is characterised in that：Base includes erectting being used for and left top for setting Left front, the left back supporting plate that push wheel is correspondingly arranged, left front, left back supporting plate is the tabular knot that thickness of slab extends along the longitudinal direction It is front and rear in structure, left front, left back supporting plate to run through before the pilot hole for thering is guide direction to be above-below direction, the wheel shaft of left pushing tow wheel Two ends are moved up and down respectively afterwards is assemblied in corresponding pilot hole.

6. a kind of prior-warning device, it is characterised in that：Including the displacement output bracket as described in claim 1-5 any one, also Including for being triggered when the linearly operating output end of displacement output bracket reaches setting moving range by linearly operating output end Warning piece.

7. the drying cylinder that axis extends along the longitudinal direction is installed in a kind of cut-tobacco drier, including frame, frame, it is characterised in that：Dry Silk machine also includes prior-warning device as claimed in claim 6.