TWI526786B - Fluid supply device - Google Patents

Description

Fluid supply device

The present invention relates to a fluid supply device, and more particularly to a fluid supply device for intermittently supplying fluids one after another.

In the past, for the adhesion of a multilayer film such as a touch panel, a backlight module, or other optical sheets, a fluid supply device is used to spray a fluid such as a glue onto a film, and the fluid is uniformly applied to the film. The film is further subjected to a bonding process of the film and another film.

The existing fluid supply device mainly uses a power unit to directly send a predetermined flow of fluid out of a waste material tube, but it is difficult to accurately control the flow rate of each output, which may easily lead to insufficient or excessive supply of fluid, which may affect The subsequent lamination process makes the defect rate high and the product quality is not good, so the design of the fluid supply device still needs to be improved.

Accordingly, it is an object of the present invention to provide a fluid supply device that increases the accuracy of fluid supply.

Thus, the fluid supply device of the present invention is for supplying a fluid of a feed unit to a discharge unit, and comprises: a valve seat Unit, and a stem unit. The valve seat unit includes a cylinder block that is hollow and located between the feeding unit and the discharging unit, and a tube that connects the feeding unit and the cylinder block and the fluid of the feeding unit flows into the cylinder block in one direction. a one-way valve, and a second one-way valve that connects the cylinder block and the discharge unit and the fluid for the cylinder block flows into the discharge unit in one direction. The valve stem unit includes a piston rod axially movably extending into the cylinder block of the valve seat unit, the piston rod cooperating with the cylinder block to define a fluid for accommodating and moving with the piston rod And change the size of the accommodation space. In use, the piston rod is driven relative to the cylinder block, and the cylinder seat is made smaller in a drawing position in which the accommodation space is enlarged to allow the fluid to flow into the cylinder block in one direction. The fluid moves between the extrusion positions in which the fluid flows out in one direction.

1‧‧‧Feed unit

11‧‧‧Inlet pipe

2‧‧‧Drawing unit

21‧‧‧Drawing tube

3‧‧‧ machine unit

31‧‧‧Base

311‧‧‧ bracket

312‧‧‧Substrate

313‧‧‧First rail

32‧‧‧First mobile seat

321‧‧‧First mobile board

322‧‧‧First guide block

323‧‧‧Second rail

33‧‧‧Second mobile seat

331‧‧‧Second mobile board

332‧‧‧Second guide block

34‧‧‧First adjustment agency

341‧‧‧First lead screw

342‧‧‧First motor

343‧‧‧First moving block

35‧‧‧Second adjustment body

351‧‧‧Second lead screw

352‧‧‧second motor

353‧‧‧Second moving block

36‧‧‧First direction

37‧‧‧second direction

4‧‧‧Guide unit

41‧‧‧Installation board

42‧‧‧rails

43‧‧‧ Slider

5‧‧‧Seat unit

51‧‧‧Cylinder block

511‧‧‧Incoming channel

512‧‧‧Drainage channel

513‧‧‧ Relay channel

514‧‧‧ blocks

515‧‧‧ top block

516‧‧‧Three-way tube

52‧‧‧First check valve

53‧‧‧Second check valve

54‧‧‧ accommodation space

6‧‧‧Valve unit

61‧‧‧ piston rod

62‧‧‧Action rod

7‧‧‧Negative pressure unit

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a perspective view of an embodiment of the fluid supply device of the present invention; Figure 2 is an incomplete view of the embodiment 3 is a perspective view showing a state in which a second moving plate is partially cut away; FIG. 3 is an incomplete partial exploded view of the embodiment; FIG. 4 is an incomplete partial cross-sectional view of the embodiment, illustrating A stem unit is moved to an extruded position; and Figure 5 is a view similar to Figure 4 illustrating the stem unit moved to a draw-in position.

Referring to Figures 1, 2 and 3, an embodiment of the fluid supply device of the present invention is for metering a fluid of a feed unit 1 to a discharge unit 2. In this embodiment, the fluid is an adhesive, which can be used for bonding a plurality of membranes (not shown). The fluid supply device of the present invention can also be applied to other fields, and the fluid can be used. Other liquids or working gases are not described here. The feed unit 1 comprises a feed pipe 11 for inputting a fluid. The discharge unit 2 includes a discharge tube 21 for discharging a fluid. Of course, the feeding unit 1 and the discharging unit 2 also include other configurations, but it is not the focus of the present invention, so it will not be described here.

The fluid supply device comprises a machine unit 3, a guiding unit 4, a valve seat unit 5, and a valve stem unit 6.

The machine unit 3 includes a base 31, a first moving seat 32 positioned above the base 31, a second moving seat 33 positioned above the first moving base 32, and a base 31 and the first base a first adjustment mechanism 34 between the movable seats 32 and movable along the first direction 36 relative to the base 31, and a first movement seat 32 and the second movement A second adjustment mechanism 35 that moves between the seats 33 and moves the second moving seat 33 relative to the first moving seat 32 along a second direction 37. The second direction 37 is perpendicular to the first direction 36. In the embodiment, the first direction 36 is a left-right direction and the second direction 37 is a front-rear direction. Of course, the arrangement is not limited thereto.

The base 31 has two left and right opposite brackets 311, a base plate 312 horizontally mounted above the brackets 311, and two first guide rails 313 disposed on the base plate 312 in parallel. The first moving seat 32 has a first moving plate 321 and two first guiding blocks 322 disposed on the bottom of the first moving plate 321 and respectively slidably mounted on the first guiding rails 313, and two left and right sides are disposed in parallel The second rail 323 at the top of the first moving plate 321 . The second moving base 33 has a second moving plate 331 and two second guiding blocks 332 which are disposed at the bottom of the second moving plate 331 and are respectively slidable back and forth to the second guiding rails 323.

The first adjusting mechanism 34 has a first lead screw 341 extending longitudinally and rotatably and rotatably mounted on the base 31, and a first motor 342 disposed on the base 31 and driving the first lead screw 341 to rotate. And a first moving block 343 connected to the first moving plate 321 and movable along the first lead screw 341. The second adjusting mechanism 35 has a second lead screw 351 extending longitudinally and longitudinally and rotatably mounted on the first moving base 32, and a second driving screw 32 disposed on the first moving base 32 and driving the second lead screw 351 to rotate. The second motor 352 has a second moving block 353 connected to the second moving plate 331 and movable along the second lead screw 351.

The guiding unit 4 includes a mounting plate 41 mounted on the second moving base 33, a sliding rail 42 disposed on the mounting plate 41 and extending vertically upward and downward, and a slide rail 41 Slider 43 of rail 42. Of course, the mounting plate 41 can be moved up and down with respect to the second moving base 33. The sliding rail 42 can also move up and down with respect to the mounting plate 41, so as to adjust the relative position of each other, but not limited thereto.

The valve seat unit 5 includes a cylinder block 51 which is hollow and located between the feeding unit 1 and the discharging unit 2, and a connecting unit 1 The feed pipe 11 and the first check valve 52 of the cylinder block 51, and a second check valve 53 connecting the cylinder block 51 and the discharge pipe 21 of the discharge unit 2. The cylinder block 51 is mounted to the mounting plate 41 of the guiding unit 4. The first check valve 52 and the second check valve 53 are both a valve body that allows only one-way outflow of fluid and cannot reversely flow back. In the present embodiment, the first check valve 52 is provided for the feed pipe 11 The fluid flows into the cylinder block 51 in one direction, and the second check valve 53 supplies the fluid of the cylinder block 51 into the discharge pipe 21 in one direction. However, since the configurations of the first check valve 52 and the second check valve 53 are both general techniques, they will not be described in detail herein. As for the detailed structure of the cylinder block 51, it will be described in detail later.

The stem unit 6 includes a piston rod 61 that extends axially into the cylinder block 51 of the valve seat unit 5, and an actuating rod 62 disposed at one end of the piston rod 61 away from the cylinder block 51. The actuating lever 62 is coupled to the slider 43 of the guiding unit 4 and can be driven to drive the piston rod 61 to move up and down in the axial direction. Of course, the piston rod 61 and the actuating rod 62 can be separately manufactured and then assembled together. Of course, the two can also be integrally formed.

Referring to Figures 2, 3 and 4, the cylinder block 51 of the valve seat unit 5 cooperates with the piston rod 61 of the valve stem unit 6 to define a fluid for accommodating and moving with the piston rod 61. The sized accommodation space 54 is changed. The cylinder block 51 defines a feed passage 511 on the rear side and communicating with the first check valve 52, a discharge passage 512 on the front side and communicating with the second check valve 53, and a communication passage connecting the feed passage The 511 and the discharge passage 512 are connected downward to the relay passage 513 of the accommodation space 54. The configuration of the cylinder block 51 is further described below, and the cylinder block 51 has a hollow and is provided for a base block 514 into which the piston rod 61 is movably inserted, a top block 515 which is hollow and disposed at the top of the base block 514, and a sleeve inserted into the top block 515 and connected to the second check valve respectively at the front and rear ends 53 is a tee 516 with the first one-way valve 52. The three-way pipe 516 is provided with the discharge passage 512 and the inlet passage 511 which are connected in front and rear, and is centrally connected with the accommodation space 54 to form the relay passage 513.

Furthermore, the fluid supply device further comprises a vacuum unit 7 which communicates with the base block 514 of the valve seat unit 5. The negative pressure unit 7 is used to maintain the accommodating space 54 in a negative pressure state to facilitate the axial movement of the valve stem unit 6 relative to the valve seat unit 5 up and down. Since the construction and operation of the negative pressure unit 7 are general techniques, they will not be described in detail herein.

Referring to FIG. 5, the actuating lever 62 is driven to rotate the piston rod 61 relative to the cylinder block 51 to a drawing position for making the receiving space 54 large. A vacuum suction force will be generated in the air inlet tube 11 so that the fluid in the feed pipe 11 passes through the first one-way valve 52 and flows into the cylinder block 51, and is temporarily stored in the accommodating space 54 until the accommodation is filled. The space 54 is closed until the pressure of the receiving space 54 and the inlet pipe 11 are balanced. Referring to FIG. 4, the actuating lever 62 is further driven in the reverse direction, so that the piston rod 61 is driven to move upward relative to the cylinder block 51 to an extruding position which makes the receiving space 54 small. A high pressure thrust will be generated in the space 54 such that the fluid in the cylinder block 51 passes through the second check valve 53 and flows into the discharge pipe 21 until the receiving space 54 and the discharge pipe 21 are in pressure equilibrium. The second check valve 53 is closed. In this way, the batch can be quantitatively inhaled and then the flow can be sent out. Body to provide a precise amount of fluid.

Referring to FIG. 1 , it is worth mentioning that at least one of the first adjustment mechanism 34 and the second adjustment mechanism 35 can be driven to drive the fluid before or during the supply of the fluid. The lead unit 4, the valve seat unit 5 and the valve stem unit 6 move together to adjust the discharge position of the discharge pipe 21. Referring to FIG. 4 and FIG. 5, in addition, before the fluid is supplied, the user can also set the flow rate of the fluid for each output supply, that is, adjust the amount of movement of the piston rod 61, thereby controlling the accommodation space 54 to be accommodated at a time. The capacity of the fluid.

In summary, the fluid supply device of the present invention can effectively adjust and control the supply amount of each output fluid by the design of the valve seat unit 5 and the valve stem unit 6, thereby improving the accuracy of the fluid supply. In order to improve product quality, the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

1‧‧‧Feed unit

11‧‧‧Inlet pipe

2‧‧‧Drawing unit

21‧‧‧Drawing tube

4‧‧‧Guide unit

41‧‧‧Installation board

42‧‧‧rails

43‧‧‧ Slider

5‧‧‧Seat unit

51‧‧‧Cylinder block

514‧‧‧ blocks

515‧‧‧ top block

516‧‧‧Three-way tube

52‧‧‧First check valve

53‧‧‧Second check valve

54‧‧‧ accommodation space

6‧‧‧Valve unit

61‧‧‧ piston rod

62‧‧‧Action rod

7‧‧‧Negative pressure unit

Claims (7)

A fluid supply device for metering a fluid of a feed unit to a discharge unit, and comprising: a valve seat unit comprising a hollow cylinder block located between the feed unit and the discharge unit, a first one-way valve connecting the feeding unit and the cylinder block and flowing the fluid of the feeding unit into the cylinder block in one direction, and a fluid single unit connecting the cylinder block and the discharging unit to the cylinder block a second check valve flowing into the discharge unit; a valve stem unit including a piston rod axially displaceable into the cylinder seat of the valve seat unit, the piston rod being cooperatively defined with the cylinder block a receiving space for accommodating the fluid and changing in size as the piston rod moves; and a guiding unit for guiding the axial movement of the valve stem unit and including a cylinder for the valve seat unit a mounting plate mounted on the seat, a slide rail disposed on the mounting plate, and a slider disposed on the valve stem unit and slidably embedded in the sliding rail; in use, the piston rod is driven to be opposite In the cylinder block, in one of the accommodation spaces Move between large and allow fluid to flow into the cylinder block of the check is drawn into position, so that the receiving space with a smaller and allow fluid to the cylinder block of the one-way flowing extrudate. The fluid supply device of claim 1, wherein the cylinder block defines a feed passage communicating with the first check valve, a discharge passage communicating with the second check valve, and a communication passage The passage and the discharge passage communicate with the relay passage of the accommodation space. The fluid supply device of claim 2, wherein the cylinder block has a base block that is hollow and movably inserted into the piston rod, a top block that is hollow and disposed at the top of the base block, and a plug Extending into the top block and connecting the second one-way valve and the three-way pipe of the first one-way valve respectively at the front and rear ends, the three-way pipe is provided with the discharge passage and the feed passage which are connected back and forth, and The relay channel is formed centrally and in communication with the accommodation space. The fluid supply device according to claim 1, further comprising a negative pressure unit for causing the accommodation space to form a negative pressure. The fluid supply device of claim 1, wherein the valve stem unit further comprises an actuating lever disposed on the piston rod away from the one end of the cylinder block, the actuating rod connecting the slider of the guiding unit . The fluid supply device of claim 1, further comprising a machine unit that drives the valve seat unit and the valve stem unit to move to adjust a position, the machine unit includes a base and a first position above the base a moving seat, a second moving seat positioned above the first moving seat and mounted by the valve seat unit, a first adjusting mechanism disposed between the base and the first moving seat, and a first adjusting mechanism disposed at the first a second adjusting mechanism between the moving seat and the second moving seat, the first adjusting mechanism can drive the first moving base to move along a first direction relative to the base, and the second adjusting mechanism can drive the first The second moving seat moves in a second direction relative to the first moving seat, and the second direction is perpendicular to the first direction. The fluid supply device of claim 6, wherein the first direction is a left-right direction and the second direction is a front-rear direction, the base has two left and right opposite brackets, and one of the horizontally erected above the brackets Substrate, And a first guide rail disposed on the substrate in parallel with the front and rear sides, the first movable seat has a first moving plate, and two of the first moving plates are disposed at the bottom of the first moving plate and are respectively slidably embedded in the first and second sides. a first guiding block of a guide rail, and two second guiding rails disposed at the top of the first moving plate in parallel, the second moving base has a second moving plate, and two are disposed at the bottom of the second moving plate And respectively, the second guide blocks of the second guide rails are slidably embedded back and forth.