Clamp for processing plastic handle
By combining the clamping block, adsorption head and pneumatic jaws, the problem of unstable clamping of plastic handles in traditional fixtures is solved, and stable clamping and efficient cutting of plastic handles is achieved.
Patent Information
- Application Number
- CN202421226152.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Traditional fixtures are difficult to provide sufficient clamping force, which is unstable to plastic handles with different shapes, soft and smooth textures, resulting in deformation and product quality.
A clamp including a clamping block, an adsorption head and a pneumatic jaw are designed to provide stable clamping force through the combination of the adsorption head with the vacuum equipment and the pneumatic jaw, and ensure that the mating of the positioning mechanism and the robot arm is ensured. Cropping accuracy and efficiency.
It realizes stable and reliable clamping of plastic handles, avoids clamping unstable and deformation problems, and improves product quality and cutting accuracy.
Smart Images
Figure CN222360276U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of plastic product processing, and in particular to a clamp for processing plastic handles. Background Art
[0002] For large-capacity plastic containers, such as cooking oil barrels and mineral water bottles, plastic handles are generally provided at the mouth of the bottle for easy handling and extraction. Plastic handles are generally processed by injection molding. In the related art, after the plastic handles are injection molded, multiple finished products are connected together, and the connection parts of the molded products need to be cut. During the cutting process, a clamp is needed to fix the product.
[0003] The problem with the related technology is that the traditional clamp design often lacks special optimization for plastic handles, and usually adopts a simple clamping mechanism to clamp objects. For plastic handles of various shapes, soft and smooth texture, the traditional clamp often fails to provide sufficient clamping force, resulting in problems such as unstable clamping. It is also easy to cause deformation of the plastic handle, affecting product quality. Utility Model Content
[0004] In order to improve the clamping stability of the material handle during the cutting process of the plastic handle, the present application provides a clamp for processing the plastic handle.
[0005] The present application provides a plastic handle processing fixture that adopts the following technical solution:
[0006] A clamp for processing plastic handles, comprising a base plate and a plurality of clamping units arranged on the base plate, wherein the plurality of clamping units are arranged in an array on the surface of the base plate, wherein each of the clamping units comprises a clamping block and an adsorption head mounted on the clamping block, wherein the adsorption head has an adsorption end and a connecting end, wherein the adsorption end is in contact with the surface of the plastic product, and the connecting end is used to connect to an external vacuum pumping device, wherein the clamping unit further comprises a plurality of pneumatic clamps mounted on the base plate, wherein the plurality of pneumatic clamps correspond one to one to the plurality of clamping units, wherein each of the pneumatic clamps is connected to an air pipe connector, wherein the air pipe connector is used to connect to an external air supply device, and wherein the pneumatic clamps are used to clamp and fix the part of the plastic product to be cut.
[0007] By adopting the above technical solution, the plastic product is placed on the clamping block, and the pneumatic clamping claw and the adsorption head work together to clamp the plastic product, with good fixing effect and strong stability.
[0008] Optionally, each of the clamping units has two clamping blocks, the two clamping blocks are relatively distributed, and the pneumatic clamping jaws are arranged between the two clamping blocks.
[0009] By adopting the above technical solution, two clamping blocks are provided to improve the supporting effect on the plastic product.
[0010] Optionally, each of the clamping units has four adsorption heads, and the four adsorption heads are distributed in pairs on two clamping blocks, and the two adsorption heads on the same clamping block are symmetrical about the center line of the clamping block.
[0011] By adopting the above technical solution, two adsorption heads arranged on the same clamping block can simultaneously adsorb different parts of the plastic product placed thereon, thereby improving the adsorption effect. The two adsorption heads are symmetrical about the center line of the clamping block, so that the external force on the plastic product can be more uniform.
[0012] Optionally, a positioning mechanism is provided on the base plate, and the positioning mechanism includes two movable plates and two fixed plates perpendicular to the plane where the base plate is located, the two movable plates are arranged on the inner sides of the two clamping blocks, and the two fixed plates are arranged on the outer sides of the two clamping blocks, and the positioning mechanism also includes a driving component for driving the movable plates to move.
[0013] By adopting the above technical solution, when the driving component drives the movable plate to approach the fixed plate, the plastic product between the fixed plate and the movable plate can be positioned and centered, so as to adjust the position of the plastic product before cutting and ensure cutting accuracy.
[0014] Optionally, the fixed plate is fixedly mounted on one side surface of the clamping block, and the movable plate is slidably mounted on the other side surface of the clamping block.
[0015] By adopting the above technical solution, the space occupied by the fixed plate and the movable plate can be reduced, making the overall structure of the clamp more compact.
[0016] Optionally, the driving assembly includes a cam, a driver and an elastic reset member, the elastic reset member is arranged between the two movable plates and connected to the two movable plates, the cam is rotatably mounted on the base plate, and the two sides are respectively abutted against the two movable plates, and the output end of the driver is connected to the cam.
[0017] By adopting the above technical solution, when the driver drives the cam to rotate, the cam successively abuts against the two movable plates, and respectively drives the two movable plates close to the corresponding fixed plates to perform a centering positioning action. When the cam continues to rotate, under the action of the elastic reset member, the movable plate moves away from the fixed plate to perform a cutting action.
[0018] Optionally, the cam includes a rotating part and two protruding parts, the two protruding parts are smoothly connected to the rotating part, and the two protruding parts are symmetrically distributed about the central axis of the rotating part, and the output end of the driver is connected to the rotating part for driving the rotating part to rotate along its central axis.
[0019] By adopting the above technical solution, when the driver drives the rotating part to rotate, the two protruding parts rotate synchronously and simultaneously push the two movable plates to move, thereby improving work efficiency.
[0020] Optionally, a mounting plate is provided on a side of the base plate away from the clamping unit, and the mounting plate is connected to an external robot arm assembly.
[0021] By adopting the above technical solution, the mounting plate connects the mechanical arm assembly to the base plate, so that the clamp is driven to move to a desired position through the mechanical arm assembly.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. Through the setting of the clamping unit, the plastic product is placed on the clamping block, and its lower surface is in contact with the adsorption head. The air in the adsorption head is extracted by the external vacuum equipment, so that the plastic product can be tightly fixed on the adsorption head. At the same time, the pneumatic clamping claw assists in clamping the plastic product to further improve the fixing effect. The clamp can provide stable and reliable clamping for the plastic handle, avoiding the problem of unstable clamping and easy slipping of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the bottom-up structure of an embodiment of the present application.
[0025] Figure 2 It is a schematic diagram of the cross-sectional structure when viewed from above of an embodiment of the present application.
[0026] Figure 3 It is a side view structural schematic diagram of an embodiment of the present application.
[0027] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at point A in the middle.
[0028] Figure numerals: 1. base plate; 2. clamping unit; 21. clamping block; 22. suction head; 23. pneumatic clamp; 24. air pipe connector; 3. positioning mechanism; 31. movable plate; 32. fixed plate; 33. driving assembly; 331. cam; 3311. rotating part; 3312. protruding part; 332. driver; 333. elastic reset part; 4. mounting plate. DETAILED DESCRIPTION
[0029] The following is combined with Figure 1-4 This application is described in further detail.
[0030] The present application embodiment discloses a clamp for processing a plastic handle. Figure 1A plastic handle processing fixture includes a bottom plate 1, which is a roughly rectangular plate-shaped structure, and its two relatively distributed and larger side surfaces are respectively set as a connecting surface and a fixing surface, wherein a mounting plate 4 is fixed to the connecting surface, and the mounting plate 4 is used to connect the bottom plate 1 with an external driving structure, and the driving mechanism can be a mechanical arm or the like that can drive the bottom plate 1 to move horizontally or vertically. The fixing surface of the bottom plate 1 is used to fix the plastic product so that the cutting device can cut the residual material on the plastic product.
[0031] Reference Figure 1 and Figure 3 , a plurality of clamping units 2 arranged in an array are provided on the fixed surface of the bottom plate 1, and the plastic product is fixed by each clamping unit 2 for subsequent cutting. Each clamping unit 2 includes a clamping block 21, and a mounting hole penetrating the upper and lower surfaces of the clamping block 21 is provided on the clamping block 21, and a suction head 22 is inserted into the mounting hole. The suction head 22 extends through the mounting hole to one end above the clamping block 21 for supporting and adsorbing the plastic product, and the suction head 22 extends through the mounting hole to one end below the clamping block 21 for connecting to an external vacuum device. Specifically, the plastic product is placed on the suction head 22, and the vacuum device extracts the air from the connection between the suction head 22 and the plastic product, so that the plastic product is tightly attached to the suction head 22, thereby achieving the fixation of the plastic product. Preferably, there are two adsorption heads 22 arranged on the clamping block 21, and the two adsorption heads 22 are symmetrically distributed about the center line of the clamping block 21, and the straight lines where the adsorption heads 22 are located are all inclined to match the surface of the plastic product, so that the plastic product can fit tightly with the end of the adsorption head 22.
[0032] Furthermore, when the shape of the plastic product is Figure 1 As shown (i.e., a molded plastic product includes two finished products connected by residual material), each clamping unit 2 should have two clamping blocks 21, which are respectively used to carry the two finished product parts of the plastic product, and the residual material part of the plastic product is located between the two clamping blocks 21, and the cutting device removes this part of the residual material.
[0033] Furthermore, each clamping unit 2 further includes a pneumatic clamping jaw 23 mounted on the bottom plate 1. Figure 1 As shown, the pneumatic clamp 23 is used to clamp and fix the remaining material between two finished products, so as to improve the fixing effect of the clamping unit 2 on the plastic product and ensure the overall stability of the plastic product during the process of cutting the remaining material.
[0034] An air pipe connector 24 is provided on the side of the pneumatic clamp 23 away from the clamping unit 2. The air pipe connector 24 is used to connect to an external air supply device through a pipeline, and the air supply device controls the opening and closing of the starter clamp. A support rod is also provided on the base plate 1, and the support rod is connected to the pneumatic clamp 23 to fix the pneumatic clamp 23 on the base plate 1.
[0035] A positioning mechanism 3 is also provided on the bottom plate 1 for adjusting the position of the plastic product when the plastic product is placed on the clamping block 21 so that each part of the plastic product is in a preset position, thereby ensuring that the subsequent cutting device can accurately determine the cutting position during cutting.
[0036] Reference Figure 1 , Figure 2 and Figure 4 The positioning mechanism 3 includes a fixed plate 32 and a movable plate 31 respectively arranged on both sides of each clamping block 21, and a driving assembly 33 for driving the movable plate 31 to move closer to or away from the fixed plate 32. It can be understood by those skilled in the art that for the same set of clamping units 2, when the plastic product is such as Figure 1 In the shape shown, the number of fixed plates 32 and movable plates 31 corresponding to the same group of clamping units 2 should be two, and the driving assembly 33 is configured to simultaneously drive the two movable plates 31 to approach or move away from the corresponding fixed plate 32.
[0037] Specifically, the driving assembly 33 includes a cam 331 that pushes the movable plate 31 to move toward the fixed plate 32, an elastic reset member 333 that pulls the movable plate 31 to move away from the fixed plate 32, and a driver 332 that drives the cam 331 to rotate. When the driver 332 drives the cam 331 to rotate, as the farthest end of the cam 331 approaches the movable plate 31 to push the movable plate 31 to move, the elastic reset member 333 is stretched; when the cam 331 rotates further, the farthest end of the cam 331 moves away from the movable plate 31, and the elastic reset member 333 begins to restore its deformation, driving the movable plate 31 away from the fixed plate 32. In this process, the movable plate 31 can be centered and positioned with respect to the plastic product placed on the clamping block 21.
[0038] Preferably, for any clamping unit 2, the two movable plates 31 of the positioning mechanism 3 are respectively arranged on the inner sides of the two clamping blocks 21, and the two fixed plates 32 are respectively arranged on the outer sides of the two clamping blocks 21. The driving assembly 33 is arranged between the two movable plates 31, and the cam 331 is arranged as follows:
[0039] The cam 331 includes a rotating portion 3311 and two protruding portions 3312. The two protruding portions 3312 are symmetrically distributed about the central axis of the rotating portion 3311. The two protruding portions 3312 have the same shape and are smoothly connected to the rotating portion 3311. The output shaft of the driver 332 is connected to the rotating portion 3311, and the rotating axis coincides with the central axis of the rotating portion 3311. When the driver 332 drives the cam 331 to rotate, the two protruding portions 3312 of the cam 331 respectively approach or move away from the movable plate 31.
[0040] According to the needs, the range of rotation of the driver 332 driving the cam 331 to perform a positioning operation is preferably 180°, that is, initially, the two protrusions 3312 of the cam 331 are both away from the movable plate 31. When the cam 331 rotates 90°, the two protrusions 3312 are respectively close to the corresponding movable plate 31, so that the movable plate 31 is close to the fixed plate 32 for positioning and centering. When the two protrusions 3312 are respectively in contact with the movable plate 31, the cam 331 continues to rotate 90°, so that the two protrusions 3312 are away from the movable plate 31, and the movable plate 31 is away from the fixed plate 32 under the action of the elastic reset member 333. The rotation direction of the cam 331 is not limited, and the specific structure and composition of the driver 332 used to drive the cam 331 to rotate are common knowledge and are not limited here.
[0041] Preferably, both ends of the elastic reset member 333 are respectively connected to the two movable plates 31. Under the action of the elastic reset member 333, when the farthest end of the cam 331 is away from the movable plate 31, the movable plate 31 can always keep in contact with the cam 331.
[0042] The implementation principle of the clamp for processing plastic handles in the embodiment of the present application is as follows: first, the plastic handles are placed on each clamping unit 2, and the driver 332 drives the cam 331 to rotate, so that the movable plate 31 first approaches the fixed plate 32, and positions and centers part of the product on the clamping block 21, and then moves away from the fixed plate 32. The air supply device controls the pneumatic clamp 23 to close, and partially clamps and fixes the product. At the same time, the external vacuum device vacuums the part of the adsorption head 22 that contacts the product, so that the product is tightly attached to the adsorption head 22, thereby completing the fixation of the product. Then the mechanical arm drives the clamp with the plastic handle fixed to move to the cutting position, and the cutting device cuts the remaining material on the plastic handle. After cutting, the pneumatic clamp 23 opens, and the vacuum device inflates the adsorption head 22 to release the adsorption effect, so as to facilitate material removal.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A fixture for processing plastic handles, characterized in that: The invention comprises a base plate (1) and a plurality of clamping units (2) arranged on the base plate (1), wherein the plurality of clamping units (2) are arranged in an array on the surface of the base plate (1), wherein each of the clamping units (2) comprises a clamping block (21) and an adsorption head (22) mounted on the clamping block (21), wherein the adsorption head (22) comprises an adsorption end and a connection end, wherein the adsorption end is in contact with the surface of the plastic product, and the connection end is used to connect to an external vacuum pumping device, and wherein the clamping unit (2) further comprises a plurality of pneumatic clamping jaws (23) mounted on the base plate (1), wherein the plurality of pneumatic clamping jaws (23) correspond to the plurality of clamping units (2) in a one-to-one manner, wherein each of the pneumatic clamping jaws (23) is connected to an air pipe connector (24), wherein the air pipe connector (24) is used to connect to an external air supply device, and wherein the pneumatic clamping jaws (23) are used to clamp and fix a portion of the plastic product to be cut.
2. A plastic handle processing fixture according to claim 1, characterized in that: Each of the clamping units (2) has two clamping blocks (21), the two clamping blocks (21) are relatively distributed, and the pneumatic clamping jaws (23) are arranged between the two clamping blocks (21).
3. A plastic handle processing fixture according to claim 2, characterized in that: Each of the clamping units (2) has four adsorption heads (22), the four adsorption heads (22) are distributed in pairs on two clamping blocks (21), and the two adsorption heads (22) on the same clamping block (21) are symmetrical about the midline of the clamping block (21).
4. A plastic handle processing fixture according to claim 2, characterized in that: A positioning mechanism (3) is provided on the bottom plate (1), the positioning mechanism (3) comprising two movable plates (31) and two fixed plates (32) which are perpendicular to the plane where the bottom plate (1) is located, the two movable plates (31) being arranged on the inner sides of the two clamping blocks (21), the two fixed plates (32) being arranged on the outer sides of the two clamping blocks (21), and the positioning mechanism (3) further comprising a driving assembly (33) for driving the movable plates (31) to move.
5. A plastic handle processing fixture according to claim 4, characterized in that: The fixed plate (32) is fixedly mounted on one side surface of the clamping block (21), and the movable plate (31) is slidably mounted on the other side surface of the clamping block (21).
6. A plastic handle processing fixture according to claim 4, characterized in that: The driving assembly (33) comprises a cam (331), a driver (332) and an elastic reset member (333); the elastic reset member (333) is arranged between the two movable plates (31) and connected to the two movable plates (31); the cam (331) is rotatably mounted on the bottom plate (1) and abuts against the two movable plates (31) at two sides; and the output end of the driver (332) is connected to the cam (331).
7. A plastic handle processing fixture according to claim 6, characterized in that: The cam (331) comprises a rotating portion (3311) and two protruding portions (3312); the two protruding portions (3312) are smoothly connected to the rotating portion (3311), and the two protruding portions (3312) are symmetrically distributed about the central axis of the rotating portion (3311); the output end of the driver (332) is connected to the rotating portion (3311) for driving the rotating portion (3311) to rotate along its central axis.
8. The fixture for processing plastic handles according to claim 1, characterized in that: A mounting plate (4) is provided on a side of the base plate (1) away from the clamping unit (2), and the mounting plate (4) is connected to an external mechanical arm assembly.