CN203386817U - A lithium battery aluminum-plastic film automatic forming machine - Google Patents

Abstract

The utility model discloses a lithium battery plastic-aluminum membrane automatic molding machine, along the plastic-aluminum membrane material area direction of advance, include plastic-aluminum membrane material book blowing unit, plastic-aluminum membrane material area buffer unit, plastic-aluminum membrane stamping forming unit, blank unit and draw the material unit in proper order, plastic-aluminum membrane material book blowing unit includes buncher, drive mechanism and plastic-aluminum membrane material book blowing axle, the buncher can drive plastic-aluminum membrane material book blowing axle rotation through drive mechanism; and a heating device is arranged on the aluminum plastic film material belt buffering unit and can heat the aluminum plastic film passing through the aluminum plastic film material belt buffering unit. The utility model discloses blowing control is accurate, can eliminate at every turn and draw the material when expecting because the elasticity produces the error that draws the material length to differ from each other, can keep good ductility under the low temperature, eliminate because of the temperature crosses low and produce the bad problem of towards the shell.

Description

A lithium battery aluminum-plastic film automatic forming machine

technical field

The invention relates to lithium battery manufacturing equipment, in particular to an automatic aluminum-plastic film forming machine for lithium batteries. the

Background technique

With the development of society, various electronic devices are used more and more widely, and the demand for batteries, especially lithium-ion batteries, is increasing year by year. In the manufacturing process of existing lithium batteries, especially square lithium batteries, the aluminum-plastic film needs to be pre-processed and formed. The forming process usually includes the aluminum-plastic film discharging, shell punching, cutting and receiving processes. Then it is the equipment corresponding to complete the above process, for example: Chinese patent 200820126802.7 discloses an automatic aluminum-plastic film forming machine, which consists of a feeding mechanism, a tension controller, a mold, a feeding mechanism, a material cutting mechanism, a forming cylinder, a PLC control box, Composed of gas-liquid converter and PLC touch screen, the feeding mechanism is connected to the tension controller, the tension controller is connected to the mold, the mold is fixed above the forming cylinder, the gas-liquid converter is set above the mold, and the feeding mechanism is connected to the mold After that, the feeding mechanism is connected with the cutting mechanism, and the PLC touch screen is set on one side of the gas-liquid converter. However, the aluminum-plastic film automatic forming machine in the prior art has at least the following deficiencies during use: First, too much or too little feeding can not achieve precise control, resulting in excessive top edge sealing error when pulling the material and cutting the edge. Subsequent manual trimming is required, which affects production efficiency and yield. Second, when operating in an environment with low indoor temperature, the PP layer of the aluminum-plastic film has poor ductility due to the low temperature. When the shell is formed and stretched, it is easy to cause the aluminum-plastic film shell to break. the

Contents of the invention

The technical problem to be solved by the present invention is to aim at the deficiencies in the above-mentioned prior art, and to provide a kind of precise discharge control, which can eliminate the error of different lengths of materials due to different elasticities during each drawing, and can be used at too low temperature. It is an automatic aluminum-plastic film forming machine for lithium batteries that maintains good ductility and eliminates poor punching due to low temperature. the

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: an automatic aluminum-plastic film forming machine for lithium batteries, which sequentially includes an aluminum-plastic film roll unwinding unit and an aluminum-plastic film material tape buffer along the forward direction of the aluminum-plastic film tape Unit, aluminum-plastic film stamping forming unit, cutting unit and pulling unit, the aluminum-plastic film roll unwinding unit includes a speed-regulating motor, a transmission mechanism and an aluminum-plastic film roll unwinding shaft, and the speed-regulating motor can be The aluminum-plastic film roll unwinding shaft is driven to rotate by a transmission mechanism; a heating device is arranged on the aluminum-plastic film material belt buffer unit, and the heating device can heat the aluminum-plastic film passing through the aluminum-plastic film material belt buffer unit. the

The beneficial effects of the present invention are as follows: firstly, the present invention integrates automatic feeding, buffering, heating, punching and forming, and cutting, and has simple structure, convenient adjustment, long life and stable operation; secondly, the aluminum-plastic The film roll unwinding unit includes a speed-regulating motor, a transmission mechanism and an aluminum-plastic film roll unwinding shaft, which can prevent too much or too little aluminum-plastic film tape during unwinding by adjusting the motor speed, and control the unwinding at a precise rate. range, to eliminate the error of different lengths of materials due to different elasticities when pulling materials each time; third, a heating device is arranged on the buffer unit of the aluminum-plastic film material belt of the present invention, and the heating device can pass through the aluminum-plastic film. The aluminum-plastic film of the strip buffer unit is heated. Therefore, the present invention can maintain good ductility at a too low temperature and eliminate the problem of poor punching caused by too low temperature. the

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention. the

Fig. 2 is a schematic top view of the structure of the present invention. the

Fig. 3 is a schematic view of the front structure of the present invention. the

Fig. 4 is a structural schematic diagram of the aluminum-plastic film roll unwinding unit of the present invention. the

Fig. 5 is a structural schematic diagram of the aluminum-plastic film tape buffer unit and the heating device of the present invention. the

Fig. 6 is a schematic structural view of the aluminum-plastic film stamping unit of the present invention. the

Fig. 7 is a schematic diagram of the structure of the pressing and anti-retraction unit of the present invention. the

Fig. 8 is a structural schematic diagram of the material cutting unit of the present invention. the

Fig. 9 is a schematic structural diagram of the pulling unit of the present invention. the

Detailed ways

The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings. the

As shown in Fig. 1, Fig. 2 and Fig. 3, it is the overall structure diagram of the aluminum-plastic film automatic forming machine for lithium batteries of the present invention. The aluminum-plastic film automatic forming machine for lithium batteries, along the forward direction of the aluminum-plastic film strip, sequentially includes an aluminum-plastic film roll unloading unit 1, an aluminum-plastic film strip buffer unit 2, an aluminum-plastic film stamping unit 3, and a material cutting unit. Unit 4 and material pulling unit 6; with reference to FIG. 4, the aluminum-plastic film roll unwinding unit 1 includes a speed-regulating motor 101, a transmission mechanism 102 and an aluminum-plastic film roll unwinding shaft 103, and the speed-regulating motor 101 The aluminum-plastic film roll unwinding shaft 103 can be driven to rotate through the transmission mechanism 102; with reference to FIG. The aluminum-plastic film (not shown in the figure) of the tape buffer unit 2 is heated. the

As shown in Figure 4, the speed-regulating motor 101 is electrically connected to a speed-regulating box 104; the aluminum-plastic film roll unwinding shaft 103 is the unwinding inflatable shaft 103, and the unwinding inflatable shaft 103 is locked The handle 105 is fixed; the transmission mechanism 102 includes a feeding synchronous shaft 1021, a belt pulley 1022 and a gear set 1023, and the speed regulating motor 101 can drive the belt pulley 1022 to run through the feeding synchronization shaft 1021, and the belt pulley 1022 is then Drive the gear set 1023 to run, and then drive the discharge air shaft 103 to rotate. the

As shown in Figure 5, the aluminum-plastic film strip buffer unit 2 includes a support seat vertical plate 201, a fixed roller 202, a floating roller seat 203, a discharging floating roller 204, and a roller seat guide post 205. 202 is installed on the upper end of the support seat vertical plate 201, the roller seat guide column 205 is connected with the lower end of the support seat vertical plate 201, and the floating roller seat 203 is slidably sleeved on the roller seat guide column 205 through the linear bearing 206. The discharging floating roller 204 is installed on the floating roller seat 203, and the lower end of the support stand vertical plate 201 is also provided with a limit sensor 207; the heating device 5 includes an infrared heating lamp tube 501, a heating shield 502 and a shield frame body 503, the infrared heating lamp tube 501 is installed on the heating shield 502, and the heating shield 502 is installed on the support stand vertical plate 201 through the shield frame body 503. the

As shown in Figure 6, the aluminum-plastic film stamping unit 3 includes a preloading and boosting drive mechanism 301, an upper mold push plate 302, a lower template 303, a punch device 304, and a stamping drive mechanism 305 from top to bottom; The above-mentioned preloading and boosting driving mechanism 301 is connected with the upper mold push plate 302, and can drive the upper mold push plate 302 to press down or rise, and the upper mold push plate 302 can press the aluminum-plastic film on the lower mold plate 301 when pressing down The punch device 304 includes a punch top plate 3041 and a punch 3042 installed on the upper side of the punch top plate, and the lower template 301 has a punch cavity (not shown in the figure) for the punch 3042 to slide through The stamping driving mechanism 305 is connected with the punch top plate 3041 of the punch device, and can drive the punch top plate 3041 to press or descend, and the punch top plate 3041 can push the punch 3042 through the lower template 303 when pressing The punch die cavity is stamped on the aluminum-plastic film (not shown in the figure) between the upper die push plate 302 and the lower die plate 303 . the

Referring to Fig. 6 again, the aluminum-plastic film stamping unit 3 also includes a base 306, the upper side of the middle part of the base 306 is provided with a template support frame 307, the lower template 303 is installed on the mold support frame 307, and the base 306 The upper side of the edge is connected with a push plate guide post 308, the upper die push plate 302 is provided with a linear bearing 3021, and the upper die push plate is slidably sleeved on the push plate guide post 308 through the linear bearing 3021; The booster drive mechanism 301 includes a booster cylinder 3011 and a booster cylinder base 3012, the booster cylinder base 3012 is connected to the upper end of the push plate guide column 308, and the booster cylinder 3011 is installed on the booster cylinder base 3012, so The booster cylinder 3011 can push the upper mold push plate 302 to press down or rise along the push plate guide column 308 through its piston rod. Further, the booster cylinder seat 3012 is provided with a limit block 3013, and the piston of the booster cylinder A universal joint 3014 is provided between the rod and the upper die push plate 302; the underside of the base 306 is connected to a stamping drive mechanism 305, which includes a servo motor 3051, a reducer 3052, a lifting screw 3053 and a screw seat 3054, the servo motor 3051 can drive the lifting screw 3053 to rotate through the reducer 3052, and a coupling 3056 can be arranged between the reducer 3052 and the lifting screw 3053 to drive the screw seat 3054 to rise or fall. The upper end of the screw seat 3054 is connected with a jacking guide rod 3055, and the upper end of the jacking guide rod 3055 slides through the base 306 and is connected with the punch top plate 3041 of the punch device. the

As above, the lower template 303 is provided with a rubber strip installation groove 3031, and a rubber strip pressing part (not shown in the figure) for pressing the aluminum-plastic film is installed in the rubber strip installation groove 3031; the lower template 303 After the rubber strip pressing parts are installed, the upper mold push plate and the lower mold plate press the aluminum-plastic film in a line-contact manner, and the aluminum-plastic film does not produce indentations, reducing waste waste. the

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 7, a pressing material stop unit 7 is also provided between the aluminum-plastic film stamping unit 3 and the cutting unit 4, and the pressing unit 7 includes a Backstop vertical plate 701, two material limiting blocks 702 and two backstop cylinders 703; the upper end of the backstop vertical plate 701 has a chute, and the two material limiting blocks 702 are symmetrically installed on the upper end of the backstop vertical plate 701 On the chute, the opposite side of the two material limiting blocks 702 is provided with an aluminum-plastic film channel; the two anti-retreat cylinders 703 are installed on the corresponding material limiting blocks 702, fixed with a locking handle 704, and the two anti-retreat cylinders The piston rod of 703 extends downwards into the aluminum-plastic film channel of the corresponding material limiting block 702, and the ends of the piston rods of the two anti-retraction cylinders 703 are respectively equipped with pressure rubber heads 705. After the pressing and anti-retraction unit 7 is installed between the aluminum-plastic film stamping unit 3 and the cutting unit 4, it can prevent the aluminum-plastic film material belt from retreating and cause jitter errors, and can protect the accuracy of the subsequent cutting unit within 0.1mm. Save the waste of subsequent secondary trimming and other processes. the

As shown in Figure 8, the material cutting unit 4 includes a material cutting mechanism 401, a material pressing mechanism 402 and a material blanking mechanism 403, wherein: the material cutting mechanism 401 is used to cut the stamped aluminum-plastic film strip into individual lithium battery aluminum-plastic film package (not shown in the figure), the material cutting mechanism 401 includes an upper cutter cylinder 4011, an upper cutter 4012, a lower cutter cylinder 4013 and a lower cutter 4014, and the upper cutter 4012 and the lower cutter The position of the knife 4014 is opposite; the pressing mechanism 402 is located at the front end of the cutting mechanism 401, and the pressing mechanism 402 is used to press the aluminum-plastic film strip when the cutting mechanism 401 cuts the material. The pressing mechanism 402 includes a pressing bottom plate 4021, the pressing cylinder 4022 and the pressing support base plate 4023, the pressing base plate 4021 is installed on the pressing support base plate 4023, the pressing base plate 4021 has an aluminum plastic film material passage, the pressing cylinder 4022 is installed on the pressing base plate 4021, The piston rod of the pressing cylinder 4022 stretches to the aluminum-plastic film material channel of the pressing base plate, and the end of the piston rod of the pressing cylinder is equipped with a pressing plate 4024; The feeding mechanism 403 is used to remove a single lithium battery aluminum-plastic film package after cutting by the cutting mechanism 401 . The pressing mechanism 402 is combined with the pressing stop unit 7 to form a double-cylinder pressing method, which can further prevent the jitter error caused by the retreat of the aluminum-plastic film material belt. The unloading mechanism 403 can stack the aluminum-plastic film packages of lithium batteries within a specified range, reducing the confusion of the casings and the stacking pressure of the casings caused by the automatic falling of the cut casings in the prior art. Bad phenomenon, and can remind the manual replacement of the material box after the stacking box is full, reducing the manual folding process. the

As shown in Figure 9, the material pulling unit 6 includes a material pulling slide rail 601, a material pulling servo motor 602, a material pulling screw rod 603, a material pulling slide seat 604, a material pulling finger cylinder 605, a material mixing finger 606, a screw rod Support base 607 and shaft coupling 608; the material pulling slide 604 is slidably installed on the material pulling slide rail 601, the material pulling screw rod 603 is installed on the screw rod support base 607, and the material pulling servo motor 602 Connected with the pulling screw 603 through a coupling 608, the pulling servo motor 602 drives the pulling slide 604 to slide back and forth along the pulling rail 601 through the pulling screw 603; the pulling finger cylinder 605 is installed On the material pulling slide 604 , the material pulling finger cylinder 605 is connected to the material pulling finger 606 , and the direction of the material pulling finger 606 is facing the aluminum-plastic film strip in the material cutting unit 4 . the

The lithium battery aluminum-plastic film automatic forming machine of the present invention includes automatic feeding, heating, shell forming, cutting, and stacking in one. The aluminum-plastic film roll unwinding shaft (feeding air expansion shaft) of the film roll unwinding unit carries out material feeding. After adjusting the position, the aluminum-plastic film roll is fixed, and the automatic button is activated, and the material belt passes through the aluminum-plastic film. The floating roller and the fixed roller of the belt buffer unit maintain a relatively constant tension, and enter the aluminum-plastic film stamping unit after being heated. After the pre-pressing stroke is completed, the pressurization stroke is performed. After pressing, the servo motor of the stamping drive mechanism pushes the lifting screw to rise, and then pushes the top plate of the lower die to lift the punch to perform aluminum-plastic film punching and forming. The punching stroke accuracy It can be controlled to 0.01mm. After the punch completes the set stroke, the lower template returns to the original position, and the booster cylinder releases pressure and returns to the pre-press stroke. The pulling servo motor of the pulling unit pulls the aluminum-plastic film for a fixed stroke, and the pulling method is changed from pulling the material before cutting to pulling after cutting, which saves the space of the front-end pulling manipulator and reduces the risk of excessive pulling. The resulting stretch deformation makes cutting more precise. Before cutting, use the suction cup of the unloading mechanism to suck the shell, and place the shell within the specified range of the material box after cutting, so as to reduce the automatic drop of the shell after cutting in the way of material trough. If the casing is chaotic and the casing is stacked and crushed, it can be done by reminding the manual replacement of the material box after the receiving box is full, reducing the manual folding process. the

The above is only a preferred embodiment of the present invention, and any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention fall within the scope of the technical solution of the present invention. the

Claims (9)

1. An automatic aluminum-plastic film forming machine for lithium batteries, along the forward direction of the aluminum-plastic film strip, sequentially includes an aluminum-plastic film roll unwinding unit, an aluminum-plastic film strip buffer unit, an aluminum-plastic film stamping unit, and a material cutting unit. Unit and pulling unit, characterized in that: the aluminum-plastic film roll unwinding unit includes a speed-regulating motor, a transmission mechanism and an aluminum-plastic film roll unwinding shaft, and the speed-regulating motor can drive the aluminum-plastic film through a transmission mechanism The roll unwinding shaft rotates; a heating device is arranged on the buffer unit of the aluminum-plastic film material tape, and the heating device can heat the aluminum-plastic film passing through the buffer unit of the aluminum-plastic film material tape. 2. The lithium battery aluminum-plastic film automatic forming machine according to claim 1, characterized in that: the speed-regulating motor is electrically connected to a speed-regulating box; Shaft; the transmission mechanism includes a discharge synchronous shaft, a pulley at the same part, and a gear set. The speed-regulating motor can drive the pulley with the same part to run through the synchronous discharge shaft, and the pulley at the same part drives the gear set to run, and then drives the discharge gas. The expansion shaft rotates. 3. The aluminum-plastic film automatic forming machine for lithium batteries according to claim 1, wherein the aluminum-plastic film strip buffer unit includes a support seat vertical plate, a fixed roller, a floating roller seat, a discharging floating roller, Roller seat guide column, the fixed roller is installed on the upper end of the support seat vertical plate, the roller seat guide column is connected with the lower end of the support seat vertical plate, and the floating roller seat is slidably sleeved on the roller seat guide column through a linear bearing above, the discharging floating roller is installed on the floating roller seat; the heating device includes an infrared heating lamp, a heating shield and a shield frame, the infrared heating lamp is installed on the heating shield, and the heating The shield is installed on the vertical plate of the support base through the shield frame. 4. The lithium battery aluminum-plastic film automatic forming machine according to claim 1, characterized in that: the aluminum-plastic film stamping unit sequentially includes a pre-pressing and boosting drive mechanism, an upper die push plate, and a lower die plate from top to bottom , punch device, stamping driving mechanism; the preloading and boosting driving mechanism is connected with the push plate of the upper die, and can drive the push plate of the upper die to press down or rise, and the push plate of the upper die can push the aluminum plastic The film is pressed on the lower template; the punch device includes a punch top plate and a punch installed on the upper side of the punch top plate, and the lower template has a punch cavity for the punch to slide through; the stamping drive mechanism and The punch top plate of the punch device is connected and can drive the punch top plate to press down or down. When the punch top plate is pressed up, it can push the punch through the punch cavity of the lower mold plate and then punch it on the upper mold push plate and the lower mold. on the aluminum-plastic film between the templates. 5. The lithium battery aluminum-plastic film automatic molding machine according to claim 4, characterized in that: it also includes a base, the upper side of the middle part of the base is provided with a formwork support frame, and the lower formwork is installed on the mold support frame, so that The upper side of the edge of the base is connected with a push plate guide column, and the push plate of the upper mold is slidably sleeved on the push plate guide column; the preloading and boosting driving mechanism includes a booster cylinder and a booster cylinder seat, and the The pressurized cylinder seat is connected with the upper end of the push plate guide column, and the pressurized cylinder is installed on the pressurized cylinder seat, and the pressurized cylinder can push the push plate of the upper die to press down or rise along the push plate guide post through its piston rod The lower side of the base is connected with a stamping drive mechanism, which includes a servo motor, a reducer, a lifting screw and a screw seat, and the servo motor can drive the lifting screw to rotate through the reducer, and then drive the screw screw. The seat rises or falls, and the upper end of the screw screw seat is connected with a lifting guide rod, and the upper end of the lifting guide rod slides through the base and is connected with the punch top plate of the punch device. 6. The lithium battery aluminum-plastic film automatic forming machine according to claim 4 or 5, characterized in that: the lower template is provided with a rubber strip installation groove, and a rubber strip installation groove for compressing the aluminum-plastic film is installed in the rubber strip installation groove. Rubber strip compression parts. 7. The lithium battery aluminum-plastic film automatic forming machine according to claim 1, characterized in that: there is a pressing material stop-back unit between the aluminum-plastic film stamping unit and the material cutting unit, and the pressing material stop-back unit The unit includes a backstop vertical plate, two material limit blocks and two backstop cylinders; the top of the backstop vertical plate has a chute, and the two material limit stops are symmetrically installed on the chute at the top of the backstop vertical plate On the opposite side of the two material limit blocks, there is an aluminum-plastic film channel; the two anti-retreat cylinders are installed on the corresponding material limit blocks, and the piston rods of the two anti-retreat cylinders extend downward to the corresponding material limit blocks. In the channel of the aluminum-plastic film of the block, and the ends of the piston rods of the two anti-retraction cylinders are respectively installed with rubber heads. 8. The lithium battery aluminum-plastic film automatic forming machine according to claim 1, characterized in that: the cutting unit includes a cutting mechanism, a pressing mechanism and a blanking mechanism, wherein: the cutting mechanism is used for stamping The formed aluminum-plastic film strip is cut into individual aluminum-plastic film packages for lithium batteries. The material cutting mechanism includes an upper cutter cylinder, an upper cutter, a lower cutter cylinder and a lower cutter. The positions are opposite; the pressing mechanism is located at the front end of the cutting mechanism, and the pressing mechanism is used to press the aluminum-plastic film belt when the cutting mechanism cuts the material. The pressing mechanism includes a pressing bottom plate, a pressing cylinder and a pressing support Bottom plate, the pressing base plate is installed on the pressing base plate, the pressing base plate has an aluminum-plastic film channel, the pressing cylinder is installed on the pressing base plate, and the piston rod of the pressing cylinder extends to the aluminum-plastic film material of the pressing base plate Channel, and the end of the piston rod of the pressing cylinder is equipped with a pressing plate; the unloading mechanism is installed at the rear end of the cutting mechanism, and the unloading mechanism is used to pack a single lithium battery with aluminum-plastic film after the cutting mechanism cuts the material The body is removed, and the blanking mechanism includes a blanking cylinder, a suction cup mounting frame and a blanking suction cup. 9. The lithium battery aluminum-plastic film automatic forming machine according to claim 1, wherein the pulling unit includes a pulling slide rail, a pulling servo motor, a pulling screw, a pulling slide, a pulling Finger cylinder and mixing fingers; the pulling slide is slidably installed on the pulling slide rail, and the pulling servo motor drives the pulling slide to slide back and forth along the pulling slide through the pulling screw; the The material pulling finger cylinder is installed on the material pulling slide, the material pulling finger cylinder is connected to the material pulling finger, and the direction of the material pulling finger is facing the aluminum-plastic film strip in the material cutting unit.

Images