Clamp for high-temperature film stripping automation and film stripping method

Abstract

A clamp for high-temperature film stripping automation and a film stripping method. The clamp for high-temperature film stripping automation comprises a machine table, a frame (1) assembled on the machine table, a clamping mechanism (2) fixed to the frame, and a suctioning assembly (3) fixed to the frame. The machine table is used for driving the frame to rotate, ascend and descend. The clamping mechanism (2) comprises a first driving assembly (21) fixed to the frame, and two hook claws respectively connected to two opposite sides of the first driving assembly and extending towards the bottom of the frame, a grabbing space being formed between the two hook claws spaced apart from each other, and the two hook claws being used for hooking a tray (10) in the grabbing space. The suctioning assembly comprises a plurality of suctioning cups (31) fixed to the frame and extending towards the bottom into the grabbing space. The clamp for high-temperature film stripping automation can transfer trays, fix products, and use the suctioning cups to blow so as to strip films off, and achieves automated film stripping operations, improving production efficiency, reducing labor costs, and achieving safety and reliability.

Description

High-temperature demolding automated fixture and demolding method Technical Field

[0001] The invention belongs to the technical field of automated production, and in particular relates to a high-temperature automated demolding fixture and a demolding method. Background Art

[0002] The normal production process of structural parts will have the risk of three damages, especially laptop A / C parts. The appearance surface occupies the entire product, and CNC processing will have a large surface-down process. In addition, there will be a certain proportion of three damages in the turnover process. In order to reduce the three damages caused by the product process, a layer of protective film will be affixed to the appearance surface to protect it. Generally, manufacturing factories have introduced automated film application, but still use manual film tearing. Manual film tearing first requires a certain amount of labor cost. Secondly, the manual film tearing process has a certain risk of three damages and product deformation.

[0003] Therefore, some manufacturers have proposed the use of high-temperature debonding film. This protective film can be normally bonded to the product at room temperature. When the protective film is immersed in hot water with a temperature above 80°C, it will automatically curl and peel off. Although this solution can avoid product deformation caused by manual film tearing, it still requires manual removal of the peeled protective film from the pallet. At this time, workers need to work next to high-temperature hot water, which is a harsh environment and has the risk of burns. Technical issues

[0004] The object of the present invention is to provide a high-temperature automatic demolding fixture and demolding method, which can realize the automatic transportation of products and the automatic removal of protective films. Technical Solutions

[0005] The technical solution of the present invention is as follows: a high-temperature automatic demolding fixture is provided for demolding products placed on a tray, comprising a machine platform, a bracket mounted on the machine platform, a clamping mechanism fixed to the bracket, and an adsorption assembly fixed to the bracket, wherein the machine platform is used to drive the bracket to rotate and lift;

[0006] The gripping mechanism includes a first drive assembly fixed to the bracket and two claws connected to opposite sides of the first drive assembly and extending toward the bottom of the bracket, with a gripping space formed between the two claws. The two claws are used to grip the tray in the gripping space.

[0007] The adsorption assembly includes a plurality of suction cups fixed to the bracket and extending toward the bottom into the grasping space.

[0008] Furthermore, two movable openings are spaced apart at the bottom of the bracket, and the first driving assembly includes a two-way cylinder fixed between the two movable openings of the bracket, two fixed seats respectively connected to the output ends of the two-way cylinder and extending from the corresponding movable openings to the bottom of the bracket, and two connecting seats respectively connected to the two fixed seats, and the top ends of the two hooks are respectively fixed to the two connecting seats.

[0009] Furthermore, the two hook claws are symmetrically arranged, and the bottom edges of the hook claws are bent and extended toward the grasping space to form at least two hook protrusions arranged at intervals.

[0010] Furthermore, the fixing seat includes two spaced apart clamping plates fixed to the output end of the bidirectional cylinder;

[0011] The connecting seat includes a telescopic plate fixed between the two clamps and extending out of the grasping space, and a reinforcing plate fixed to the bottom side of the clamps. One side of the hook and the end of the telescopic plate and the end of the reinforcing plate are all fixed.

[0012] Furthermore, the clamping mechanism also includes a second driving component fixed to the bracket and a clamping seat connected to the second driving component. The telescopic plate is provided with a clearance gap, and the second driving component extends into the gripping space from the clearance gap. The clamping seat is located on the side of the hook close to the gripping space, and the second driving component is used to drive the clamping seat to move in the height direction.

[0013] Furthermore, the second driving assembly includes an adapter plate with one end fixed to the top side of the bracket and the other end bent and extended downward, and a pressing cylinder fixed to the other end of the adapter plate;

[0014] The pressing seat includes a first pressing block fixed to the output end of the pressing cylinder and a second pressing block assembled on the bottom side of the first pressing block, and the second pressing block is made of soft elastic material.

[0015] Furthermore, the clamping mechanism further comprises a pressing component fixed to a side of the hook away from the gripping space, and the pressing component is used to press against the side of the pallet when the hook hooks the pallet.

[0016] Furthermore, the clamping assembly includes a positioning block fixed to the hook claw, a damper assembled on the positioning block, and a push-up member connected to the end of the damper, the push-up member includes a top block protruding toward the grasping space and two spaced-apart limiting plates extending toward the top, and the two limiting plates are respectively located on opposite sides of the positioning block.

[0017] Furthermore, connecting pieces are fixed on opposite sides of the bracket, the bottom end of the connecting piece is bent, and the suction cup is fixed to the bent portion of the bottom end of the connecting piece.

[0018] Furthermore, a demolding method is provided, using the high-temperature demolding automated fixture as described above, the demolding method comprising the following steps:

[0019] The bracket is driven to a first preset position, and the two claws of the clamping mechanism clamp the tray containing the product, and the adsorption end of the suction cup abuts against the top surface of the product;

[0020] Driving the bracket to move the tray to a hot water tank of a preset temperature and soaking the tray for a preset time, wherein the preset temperature is 75-85° C. and the preset time is within 60 seconds;

[0021] The support is driven to move to a second preset position, and the suction cup blows air to separate the detached membrane into a collection area;

[0022] The bracket is driven to move to a third preset position, and the hook is released to place the tray on a conveyor belt. Beneficial effects

[0023] The beneficial effect of the present invention is that: in this solution, the machine can drive the bracket to rotate and lift, so that the position of the clamping component and the adsorption component can be changed. The first drive component can drive the two claws to perform the hooking action, and the adsorption component can be used to achieve the adsorption of the film on the product. In actual application, the clamping component can be driven to move to the area where the tray is placed, so that the tray is located in the gripping space, and the tray contains the product that needs to be de-molded. Then, the first drive component drives the two claws to hook the tray, and the suction cup abuts against the top side of the product on the tray, thereby fixing the product; after that, the machine can drive the bracket to move the tray into the hot water tank. After the product in the tray is soaked until the film and the product are separated, the machine drives the bracket to move and move the tray to the waste film collection area. At this time, the suction cup blows air to blow the film to the waste film collection area. Then, the machine can drive the bracket to move the product and the tray together to the discharge area. The first drive component drives the claws to release, and the product and the tray can be placed together in the discharge area. The high-temperature demolding automated fixture of this solution can realize pallet transfer, product fixation and air blowing demolding, realizing the automated operation of demolding, greatly improving production efficiency, reducing labor costs and being safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of a portion of the structure of the high-temperature demoulding automated fixture of the present invention when clamping a tray from a first perspective;

[0025] FIG2 is a partial structural diagram of the high-temperature demoulding automated fixture of the present invention when clamping a tray from a second perspective;

[0026] FIG3 is a schematic diagram of the three-dimensional structure of the clamping mechanism in the high-temperature demolding automation fixture of the present invention;

[0027] FIG4 is a flow chart of the demolding method using a high-temperature automated demolding fixture according to the present invention. Modes for Carrying Out the Invention

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] In conjunction with Figures 1-3, a high-temperature demolding automated clamp is provided for demolding a product 20, where the product 20 is placed on a tray 10, wherein the product 20 may be a shell-like structure with a large outer surface area, such as a notebook A / C part. The high-temperature demolding automated clamp includes a machine (not shown), a bracket 1 assembled on the machine, a clamping mechanism 2 fixed to the bracket 1, and an adsorption component 3 fixed to the bracket 1. The machine is used to drive the bracket 1 to rotate and lift; the clamping mechanism 2 includes a first driving component 21 fixed to the bracket 1 and two claws 22 respectively connected to opposite sides of the first driving component 21 and extending toward the bottom of the bracket 1. A gripping space is formed between the two claws 22, and the two claws 22 are used to hook the tray 10 in the gripping space; the adsorption component 3 includes a plurality of suction cups 31 fixed to the bracket 1 and extending toward the bottom into the gripping space.

[0030] In this solution, the machine can drive the bracket 1 to rotate and lift, so the positions of the clamping component and the adsorption component 3 can be changed. The first driving component 21 can drive the two claws 22 to perform the hooking action, and the adsorption component 3 can be used to achieve the adsorption of the film on the product 20. In actual application, the clamping component can be driven to move to the area where the tray 10 is placed, so that the tray 10 is located in the grasping space, and the tray 10 contains the product 20 that needs to be demolded. Then the first driving component 21 drives the two claws 22 to hook the tray 10, and the suction cup 31 abuts against the top side of the product 20 on the tray 10, thereby fixing the product 20; thereafter, the machine can drive the bracket 1 to move the tray 10 into the hot water tank, and after the product 20 in the tray 10 is soaked until the film and the product 20 are separated, the machine drives the bracket 1 to move and move the tray 10 to the waste film collection area. At this time, the suction cup 31 blows air to blow the film to the waste film collection area. Then, the machine can drive the bracket 1 to move the product 20 and the tray 10 together to the discharge area, and the first driving component 21 drives the claws 22 to release, so that the product 20 and the tray 10 can be placed together in the discharge area. The high-temperature demolding automatic fixture of this solution can realize the transfer of the pallet 10, the fixation of the product 20 and the demolding by blowing, realizing the automated operation of demolding, greatly improving production efficiency, reducing labor costs and being safe and reliable.

[0031] In this embodiment, the bracket 1 includes a support plate 11, a connecting head 12 fixed to the middle of the support plate 11, and reinforcing ribs 13 fixed to the top side of the support plate 11 near two opposite side edges, wherein the connecting head 12 is used to connect to the output end of the machine, and the reinforcing ribs 13 are used to enhance the overall structural strength of the bracket 1, so that the machine can drive the bracket 1 to move and rotate as a whole in space, which is convenient for adjusting the posture of the clamping component.

[0032] It should be understood that the clamping mechanism 2 and the adsorption assembly 3 together constitute a demolding module. One or at least two demolding modules can be installed on a single bracket 1. When at least two demolding modules are installed, the demolding modules are preferably evenly arranged around the connector 12. Providing multiple demolding modules can further improve the demolding efficiency of the product 20. In this embodiment, two demolding modules are symmetrically installed as an example, as shown in Figures 1-2. The left side is the demolding module without a tray 10 hooked on it, and the right side is the demolding module with a tray 10 hooked on it. It should be understood that in other embodiments, the number and arrangement of the demolding modules can be adaptively adjusted according to actual conditions.

[0033] In this application, the structure of one of the demolding modules is further introduced by taking it as an example.

[0034] Furthermore, two movable openings 111 are spaced apart at the bottom of the bracket 1, and the first driving assembly 21 includes a two-way cylinder 211 fixed between the two movable openings 111 of the bracket 1, two fixed seats 212 respectively connected to the output ends of the two-way cylinder 211 and extending from the corresponding movable openings 111 to the bottom of the bracket 1, and two connecting seats 213 respectively connected to the two fixed seats 212, and the top ends of the two hooks 22 are respectively fixed to the two connecting seats 213. Specifically, two spaced movable openings 111 are provided on the support plate 11, and the main body of the two-way cylinder 211 is fixed between the two spaced movable openings 111 of the support plate 11. The two output ends of the two-way cylinder 211 are respectively facing the two movable openings 111, and each output end is fixed with a fixed seat 212, and the bottom end of the fixed seat 212 extends from the movable opening 111 into the bottom of the support plate 11, the connecting seat 213 is fixed to the bottom end of the corresponding fixed seat 212, and the top end of the hook 22 is fixed to the end of the corresponding fixed seat 212. In this way, the two-way cylinder 211 can drive the two fixed seats 212 to move toward each other, thereby realizing the clamping or releasing action of the two hooks 22 towards or away from each other.

[0035] Furthermore, a limit block 214 is provided near the end of the top side of the bidirectional cylinder 211 , and the limit block 214 is used to limit the fixing seat 212 to prevent the two hook claws 22 from getting too close and crushing the tray 10 .

[0036] In some embodiments, the bidirectional cylinder 211 can also be replaced with a motor plus a lead screw slider structure. For example, the motor is fixed to the support plate 11, and the lead screw is arranged along the arrangement direction of the two movable openings 111. The lead screw is driven to rotate by the motor. The screw threads at both ends of the lead screw have opposite spiral directions and are equipped with sliders at both ends. The sliders are slidably assembled on the support plate 11, and then the fixed seat 212 is connected to the sliders. In this way, the grasping action of the two claws 22 can also be achieved. It should be understood that the structure of the first drive assembly 21 can be adaptively set according to actual conditions, as long as the clamping action of the two claws 22 can be achieved.

[0037] Furthermore, the two hook claws 22 are symmetrically arranged, and the bottom edges of the hook claws 22 bend and extend toward the grasping space to form at least two spaced hook protrusions 221. Specifically, the hook claws 22 are plate-shaped and symmetrical in structure. Therefore, the hook protrusions 221 are symmetrically distributed. The edge of the tray 10 is provided with a locking groove 101 corresponding to the hook protrusion 221 of each hook claw 22. When grasping the tray 10, the position and angle of the bracket 1 are first adjusted so that the hook protrusions 221 and the locking grooves 101 are aligned. Then, the first drive assembly 21 drives the two hook claws 22 closer together, and the hook protrusions 221 extend into the corresponding locking grooves 101. Then, during the upward movement of the hook claws 22, the hook protrusions 221 can abut against the groove wall of the locking groove 101, thereby lifting the tray 10.

[0038] Furthermore, the fixing base 212 includes two spaced-apart clamping plates 2121 fixed to the output end of the bidirectional cylinder 211. The connecting base 213 includes a telescopic plate 2131 fixed between the two clamping plates 2121 and extending outward from the gripping space, and a reinforcing plate 2132 fixed to the bottom side of the clamping plates 2121. One side of the hook 22 is fixed to the ends of the telescopic plate 2131 and the reinforcing plate 2132. The connection between the reinforcing plate 2132 and the telescopic plate 2131 makes the connecting base 213 more stable and the hook 22 more secure. Furthermore, after the telescopic plate 2131 extends outward and the hook 22 is fixed to the end, the gripping space formed between the two hooks 22 is larger and is not limited to the size of the bidirectional cylinder 211.

[0039] Furthermore, the gripping mechanism 2 includes a second drive assembly 23 fixed to the bracket 1 and a pressing seat 24 connected to the second drive assembly 23. The telescopic plate 2131 is provided with a clearance notch 21311. The second drive assembly 23 extends into the gripping space through the clearance notch 21311. The pressing seat 24 is located on the side of the hook 22 near the gripping space. The second drive assembly 23 is used to drive the pressing seat 24 to move in the height direction. The second drive assembly 23 can drive the pressing seat 24 to compress the pallet 10, making the pallet 10 more stable when moving.

[0040] Specifically, the second driving assembly 23 includes an adapter plate 231 fixed at one end to the top side of the bracket 1 and the other end bent and extended downward, and a pressing cylinder 232 fixed to the other end of the adapter plate 231, and the adapter plate 231 is L-shaped; the pressing seat 24 includes a first pressing block 241 fixed to the output end of the pressing cylinder 232 and a second pressing block 242 assembled on the bottom side of the first pressing block 241, and the second pressing block 242 is made of soft elastic material, such as rubber material or silicone. The first pressing block 241 is in an inverted T-shape, and the first pressing block 241 and the hook protrusions 221 are positioned opposite each other. In this way, when the hook claw 22 hooks the pallet 10, the first pressing block 241 and the second pressing block 242 can move downward under the drive of the clamping cylinder 232, so that the second pressing block 242 is pressed on the top side of the edge of the pallet 10, and the second pressing block 242 and the hook protrusions 221 of the corresponding hook claw 22 realize the upper and lower clamping of the edge of the pallet 10, which is more reliable.

[0041] Furthermore, the clamping mechanism 2 also includes a clamping assembly 25 fixed to the side of the hook 22 facing away from the gripping space. The clamping assembly 25 is used to clamp the side of the pallet 10 when the hook 22 hooks the pallet 10. Specifically, the clamping assembly 25 includes a positioning block 251 fixed to the hook 22, a damper 252 assembled on the positioning block 251, and a push-up member 253 connected to the end of the damper 252. The push-up member 253 includes a top block 2531 protruding toward the gripping space and two spaced apart limiting plates 2532 extending toward the top. The two limiting plates 2532 are respectively located on opposite sides of the positioning block 251. The limiting plates 2532 can prevent the push-up member 253 from swinging as a whole. The provision of the push-up member 253 can achieve abutment against the side of the pallet 10, further improving the degree of clamping of the side of the pallet 10.

[0042] Furthermore, connecting pieces 32 are fixed on opposite sides of the bracket 1. The bottom end of the connecting piece 32 is bent, and the suction cup 31 is fixed to the bent portion of the bottom end of the connecting piece 32. Specifically, two connecting blocks 33 are provided on opposite sides of the support plate 11. A connecting piece 32 is fixed to each connecting block 33 via screws. The suction cup 31 is then vertically fixed to the bent portion of the bottom end of the connecting piece 32. The bottom ends of the suction cups 31 are flush, and the top ends of the suction cups 31 are connected to an external air pump to achieve vacuuming or blowing of the suction cups 31.

[0043] Furthermore, based on the above-mentioned high-temperature demolding automated fixture, in combination with FIG4 , a demolding method is provided, comprising the following steps:

[0044] S100, drive the bracket 1 to the first preset position, the two claws 22 of the clamping mechanism 2 clamp the tray 10 containing the product 20, and the adsorption end of the suction cup 31 abuts the top surface of the product 20; specifically, in this step, the machine can drive the bracket 1 to move and / or rotate, so that the two claws 22 of the clamping mechanism 2 reach the tray 10 placement area, and a tray 10 is located in the grasping space, and then the two-way cylinder 211 drives the two claws 22 to approach and hook the side of the tray 10, and the clamping cylinder 232 drives the first pressing block 241 and the second pressing block 242 to press down and abut the top side of the edge of the tray 10, thereby clamping the tray 10. It should be understood that at this time, the bottom end of the suction cup 31 just abuts the top surface of the product 20, that is, the side of the product 20 where the film is attached.

[0045] S200, drive the bracket 1 to move the tray 10 to the hot water tank of the preset temperature, and soak it for a preset time. The preset temperature is 75~85℃, and the preset time is within 60S; specifically, the preset temperature is greater than 80℃, and the preset time can be adjusted according to actual conditions, such as 10S, 20S, 30S, 40S, 60S, etc. The machine can move the tray 10 to the hot water tank by driving the bracket 1 to move and / or rotate. After the product 20 in the tray 10 is soaked for the preset time, the film will curl up by itself and lose the sticky connection with the product 20.

[0046] S300, drive the bracket 1 to move to the second preset position, and the suction cup 31 blows air to separate the detached film into the collection area; the second preset position is above the waste film collection area. At this time, the bracket 1 can be erected and rotated or shaken, and the suction cup 31 blows air, so that the curled film and product 20 are separated and fall into the waste film collection area.

[0047] S400: Drive bracket 1 to the third preset position, release hooks 22, and place pallet 10 on the conveyor. Specifically, in this step, bracket 1 is first adjusted to a horizontal position to ensure the stability of pallet 10 and product 20 during the process of switching from the second preset position to the third preset position. Then, bracket 1 is moved above the conveyor and lowered close to the conveyor. The second drive assembly 23 drives the clamping seat 24 to release the pallet, and then the first drive assembly 21 drives the two hooks 22 to release, and the pallet 10 is stably placed on the conveyor.

[0048] The above description is only an embodiment of the present invention. It should be pointed out that those skilled in the art can make improvements without departing from the creative concept of the present invention, but these improvements all fall within the scope of protection of the present invention.

Claims

1. A high-temperature demolding automated fixture, used for demolding products, the products are placed on a tray, characterized in that: It includes a machine platform, a bracket mounted on the machine platform, a clamping mechanism fixed to the bracket, and an adsorption component fixed to the bracket, wherein the machine platform is used to drive the bracket to rotate and lift; The clamping mechanism comprises a first driving assembly fixed to the bracket and two hooks respectively connected to opposite sides of the first driving assembly and extending toward the bottom of the bracket, a gripping space is formed between the two hooks, and the two hooks are used to grip the tray in the gripping space; The adsorption assembly includes a plurality of suction cups fixed to the bracket and extending toward the bottom into the grasping space.

2. The high temperature demolding automated fixture according to claim 1, characterized in that: The bottom of the bracket is provided with two movable openings set at intervals, and the first driving component includes a two-way cylinder fixed between the two movable openings of the bracket, two fixed seats respectively connected to the output ends of the two-way cylinder and extending from the corresponding movable openings to the bottom of the bracket, and two connecting seats respectively connected to the two fixed seats, and the top ends of the two hooks are respectively fixed to the two connecting seats.

3. The high temperature demolding automated fixture according to claim 2, characterized in that: The two hook claws are symmetrically arranged, and the bottom edges of the hook claws are bent and extended toward the grasping space to form at least two hook protrusions arranged at intervals.

4. The high temperature demolding automated fixture according to claim 2, characterized in that: The fixing seat includes two spaced clamping plates fixed to the output end of the bidirectional cylinder; The connecting seat includes a telescopic plate fixed between the two clamps and extending out of the grasping space and a reinforcing plate fixed to the bottom side of the clamps. One side of the hook claw and the end of the telescopic plate and the end of the reinforcing plate are all fixed.

5. The high temperature demolding automated fixture according to claim 4, characterized in that: The clamping mechanism also includes a second driving component fixed to the bracket and a clamping seat connected to the second driving component. The telescopic plate is provided with a clearance gap. The second driving component extends into the gripping space from the clearance gap. The clamping seat is located on the side of the hook close to the gripping space. The second driving component is used to drive the clamping seat to move in the height direction.

6. The high temperature demolding automated fixture according to claim 5, characterized in that: The second driving assembly includes an adapter plate with one end fixed to the top side of the bracket and the other end bent and extended downward, and a pressing cylinder fixed to the other end of the adapter plate; The pressing seat comprises a first pressing block fixed to the output end of the pressing cylinder and a second pressing block assembled on the bottom side of the first pressing block, wherein the second pressing block is made of soft elastic material.

7. The high temperature demolding automated fixture according to claim 1, characterized in that: The clamping mechanism further comprises a pressing component fixed to a side of the hook away from the gripping space, and the pressing component is used to press against a side surface of the pallet when the hook hooks the pallet.

8. The high temperature demoulding automation fixture according to claim 7, characterized in that: The clamping assembly includes a positioning block fixed to the hook claw, a damper assembled on the positioning block, and a push-up member connected to the end of the damper, the push-up member includes a top block protruding toward the grasping space and two spaced-apart limiting plates extending toward the top, and the two limiting plates are respectively located on opposite sides of the positioning block.

9. The high temperature demolding automated fixture according to claim 1, characterized in that: Connecting pieces are fixed on opposite sides of the bracket, the bottom end of the connecting piece is bent, and the suction cup is fixed at the bent portion of the bottom end of the connecting piece.

10. A film stripping method, characterized in that: Using the high-temperature demolding automated fixture as described in any one of claims 1 to 9, the demolding method comprises the following steps: The bracket is driven to a first preset position, and the two hooks of the clamping mechanism clamp the tray containing the product, and the suction end of the suction cup abuts against the top surface of the product; The bracket is driven to move the tray to a hot water tank of a preset temperature for soaking for a preset time, wherein the preset temperature is 75-85° C. and the preset time is within 60 seconds; The support is driven to move to a second preset position, and the suction cup is blown to separate the detached membrane into a collection area; The support is driven to move to a third preset position, and the hook is released to place the tray on a conveyor belt.

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