Arc-shaped needle type clamp for foam

Abstract

The utility model discloses an arc-shaped needle type clamp for foam, which comprises a transmission air cylinder, a driving assembly connected to the transmission air cylinder and a transmission assembly connected to the transmission assembly, the driving assembly comprises a piston rod connected to the transmission air cylinder, and the piston rod is connected to the transmission air cylinder. The remodeling movable joints are connected to the other end of the piston rod; the transmission assembly comprises a plurality of connecting rods connected to the remodeling movable joints and a plurality of first movable joints connected to the connecting rods. The radial deviation of the arc-shaped needle type clamping hands is restrained through the arrangement of the plurality of holes of the protective sleeve, the synchronous movement of the multiple clamping hands is ensured, and the ultrathin flexible foam can be effectively clamped through the design of the arc-shaped needle type clamping hands.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to an arc-shaped needle clamp for foam. Background Technology

[0002] Foam is a porous elastic material, typically made from polymers through a foaming process. It is used for cushioning packaging of electronic products, glassware, ceramics, and other items to prevent damage during transportation. Foam is lightweight, soft, and highly elastic, possessing excellent shock absorption, sound insulation, and heat insulation properties. It is also highly processable, allowing it to be made into various shapes and sizes.

[0003] Existing technology CN208343490U discloses a clamp for bonding foam, comprising: a clamp base, a bonding groove disposed on the clamp base, multiple slots disposed within the bonding groove for placing the foam, and an air suction structure disposed at the bottom of the bonding groove; the air suction structure includes: multiple air suction holes disposed at the bottom of the bonding groove, an air suction groove disposed on the back side of the bottom of the bonding groove, a bottom cover plate, and an air suction hole connecting the air suction groove and an air suction device. The foam is placed in each slot, and after placement, the air suction device is activated, causing the foam to be adsorbed onto the same horizontal surface, resulting in a flat bonding of the product with the foam. This achieves the effect of bonding multiple foam strips at once, improving production efficiency and saving costs.

[0004] However, the above-mentioned clamps for bonding foam have the following problems: because the air suction structure is used to adsorb the foam, when dealing with ultra-thin flexible materials such as foam, the stress concentration at the adsorption interface can easily cause the material to buckle and deform, resulting in adsorption failure. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides an arc-shaped needle clamp for foam.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an arc-shaped needle clamp for foam, comprising: a transmission cylinder, a drive assembly connected to the transmission cylinder, and a transmission assembly connected to the transmission assembly;

[0007] The drive assembly includes: a piston rod connected to the transmission cylinder, and a plurality of changing hinges connected to the other end of the piston rod;

[0008] The transmission assembly includes: a plurality of connecting rods connected to a plurality of the changing hinges, and a plurality of first hinges connected to the plurality of connecting rods;

[0009] Several arc-shaped needle-type grippers are provided inside the first joint.

[0010] In a preferred embodiment of this invention, a plurality of fixing blocks are provided on one side of the transmission cylinder.

[0011] In a preferred embodiment of this utility model, a plurality of the fixed blocks are connected to a support block.

[0012] In a preferred embodiment of this utility model, a protective sleeve is provided on the support block.

[0013] In a preferred embodiment of this utility model, the protective sleeve is provided with a plurality of holes, and the plurality of holes correspond one-to-one with the plurality of arc-shaped needle-type grippers.

[0014] In a preferred embodiment of the present invention, a first bolt is provided at the connection between the piston rod and the plurality of the changing joints, and the first bolt is connected through the piston rod and the plurality of the changing joints.

[0015] In a preferred embodiment of this utility model, a plurality of second bolts are provided at the connection points of the plurality of the changing hinges and the plurality of the connecting rods.

[0016] In a preferred embodiment of the present invention, a plurality of third bolts are provided at the connection points of the plurality of connecting rods and the plurality of first joints, and the third bolts are connected through the plurality of connecting rods and the plurality of first joints.

[0017] In a preferred embodiment of this utility model, a plurality of fourth bolts are provided on a plurality of the first joints.

[0018] In a preferred embodiment of this utility model, a number of support bolts are provided at the top and bottom of the transmission cylinder.

[0019] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0020] In this invention, the piston rod connected to the transmission cylinder pushes the changing hinge, which converts linear motion into multi-angle arc motion through the connecting rod. The connection design of the changing hinge allows it to swing freely within a certain angle range, converting the linear thrust of the transmission cylinder into an arc trajectory.

[0021] In this invention, the first joint is rigidly connected to an arc-shaped pin gripper. The gripper passes through a guide hole on the protective sleeve and moves along a preset arc-shaped trajectory during opening and closing. The several holes in the protective sleeve constrain the radial offset of the arc-shaped pin gripper, ensuring synchronous movement of multiple grippers and improving clamping and positioning accuracy. The arc-shaped pin gripper design allows for effective clamping of ultra-thin flexible foam. The protective sleeve covers the transmission components, preventing foam debris from entering the connection between the changing joint and the connecting rod, reducing the risk of mechanical jamming.

[0022] In this invention, the fixed block connects the transmission cylinder and the support block in a distributed manner, forming a multi-point support structure. The cylinder mounting plane is adjusted by the support bolts. The distributed support structure disperses the reciprocating impact load of the cylinder, reduces the bending deformation of the transmission shaft, and extends the service life of the cylinder. The support block and the protective sleeve form a damping structure, absorbing the vibration energy generated by the high-speed opening and closing of the clamp, reducing the instantaneous impact on the foam workpiece. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0025] In the diagram: 1. Transmission cylinder; 2. Piston rod; 3. Changing joint; 4. Connecting rod; 5. First joint; 6. Arc-shaped needle gripper; 7. Fixing block; 8. Support block; 9. Protective sleeve; 10. Hole; 11. First bolt; 12. Second bolt; 13. Third bolt; 14. Fourth bolt; 15. Support bolt. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 As shown, an arc-shaped needle clamp for foam includes: an arc-shaped needle clamp for foam, including: a transmission cylinder 1, a drive assembly connected to the transmission cylinder 1, and a transmission assembly connected to the transmission assembly.

[0028] In this utility model, the drive assembly includes: a piston rod 2 connected to the transmission cylinder 1, and several transition joints 3 connected to the other end of the piston rod 2; by connecting the piston rod 2 to the transmission cylinder 1, the power generated by the cylinder can be directly transmitted to the subsequent mechanical structure, ensuring the efficiency and stability of power transmission. The piston rod 2 is connected to several transition joints 3. The design of the transition joints 3 allows linear motion to be converted into arc motion, enhancing the applicability and flexibility of the fixture.

[0029] In this invention, the transmission assembly includes: several connecting rods 4 connected to several changing hinges 3, and several first hinges 5 connected to the several connecting rods 4. Several arc-shaped pin grippers 6 are provided within the several first hinges 5. The movement of the changing hinges 3 is transmitted to the first hinges 5 through the connecting rods 4, ensuring efficient power transmission. The arc-shaped pin grippers 6 within the first hinges 5 can stably grip the foam, ensuring the reliability and accuracy of the gripping process and reducing the risk of workpiece damage or gripping failure due to unstable gripping. The efficient motion transmission of the transmission assembly and the rapid response of the arc-shaped pin grippers 6 enable the fixture to quickly complete gripping and releasing actions, improving production efficiency and shortening the production cycle.

[0030] In this invention, a plurality of fixing blocks 7 are provided on one side of the transmission cylinder 1, and the plurality of fixing blocks 7 are connected to a support block 8. A protective sleeve 9 is provided on the support block 8. The protective sleeve 9 is provided with a plurality of holes 10, and the plurality of holes 10 correspond one-to-one with a plurality of arc-shaped pin-type grippers 6. By setting a plurality of fixing blocks 7 on one side of the transmission cylinder 1 and connecting the fixing blocks 7 to a support block 8, a distributed support structure is formed. This can effectively disperse the reciprocating impact load of the cylinder, reduce the bending deformation of the transmission shaft, and thus extend the service life of the cylinder. The support block 8 provides stable support for the transmission cylinder 1, ensuring that the cylinder will not shift or be damaged due to uneven force during operation, thus improving the reliability and stability of the entire fixture. The protective sleeve 9 provided on the support block 8 covers the transmission assembly, preventing foam debris or other impurities from entering the connection between the changing hinge 3 and the connecting rod 4, reducing the risk of mechanical jamming, ensuring the normal operation of the transmission assembly, reducing wear and damage caused by impurities, and thus extending the service life of the transmission assembly. The protective sleeve 9 has several holes 10 that correspond one-to-one with several arc-shaped pin grippers 6, ensuring that the arc-shaped pin grippers 6 move along a preset arc trajectory during opening and closing, constraining the radial offset of the grippers, and improving the accuracy of clamping and positioning. The holes 10 ensure that multiple arc-shaped pin grippers 6 can move synchronously, avoiding problems such as clamping instability or failure caused by asynchronous gripper movement. The protective sleeve 9 reduces direct contact and friction between the grippers and the foam surface during movement, preventing scratches or damage to the foam surface caused by improper gripper movement. The damping structure formed by the protective sleeve 9 and the support block 8 can absorb the vibration energy generated by the high-speed opening and closing of the grippers, reducing the instantaneous impact on the foam workpiece, further protecting the foam material, and preventing material deformation or damage caused by instantaneous impact.

[0031] In this invention, a first bolt 11 is provided at the connection between the piston rod 2 and the plurality of changing hinges 3. The first bolt 11 passes through and connects the piston rod 2 and the plurality of changing hinges 3, ensuring a firm and reliable connection between the piston rod 2 and the changing hinges 3, capable of withstanding large thrust and tension, and ensuring stability during transmission. A plurality of second bolts 12 are provided at the connection between the plurality of changing hinges 3 and the plurality of connecting rods 4, ensuring a firm and reliable connection between the changing hinges 3 and the connecting rods 4, and avoiding inaccurate movement and failure due to loose connection during transmission.

[0032] In this invention, several third bolts 13 are provided at the connection points of several connecting rods 4 and several first hinges 5. The third bolts 13 penetrate and connect the several connecting rods 4 and several first hinges 5, ensuring that the connection between the connecting rods 4 and the first hinges 5 is firm and reliable, capable of withstanding large tensile and compressive forces, and ensuring stability during transmission. Several fourth bolts 14 are provided on the several first hinges 5.

[0033] In this invention, the transmission cylinder 1 is provided with several support bolts 15 at its top and bottom. These support bolts 15 provide multi-point support, ensuring the cylinder remains stable during operation and reducing displacement or damage caused by vibration or external forces. The support bolts 15 also distribute the reciprocating impact load on the cylinder, reducing bending deformation of the transmission shaft and thus extending the cylinder's service life.

[0034] In use, the transmission cylinder 1 is activated by the control system, and the piston rod 2 begins to move. The piston rod 2 pushes the changing hinge 3, and the linear motion is converted into arc motion through the connecting rod 4. The connecting rod 4 drives the first hinge 5, and the arc-shaped needle-type gripper 6 inside the first hinge 5 is guided along the hole 10 on the protective sleeve 9 and moves along a preset arc trajectory. The arc-shaped needle-type gripper 6 clamps the foam, completing the clamping action.

[0035] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An arc-shaped needle clamp for foam, comprising: A transmission cylinder (1), a drive assembly connected to the transmission cylinder (1), and a transmission assembly connected to the transmission assembly, characterized in that: The drive assembly includes: a piston rod (2) connected to the transmission cylinder (1), and a plurality of changing hinges (3) connected to the other end of the piston rod (2). The transmission assembly includes: a plurality of connecting rods (4) connected to a plurality of the changing hinges (3), and a plurality of first hinges (5) connected to a plurality of connecting rods (4). Several arc-shaped needle-type grippers (6) are provided in several of the first movable joints (5).

2. The arc-shaped needle clamp for foam according to claim 1, characterized in that: Several fixed blocks (7) are provided on one side of the transmission cylinder (1).

3. The arc-shaped needle clamp for foam according to claim 2, characterized in that: Several of the fixed blocks (7) are connected to a support block (8).

4. The arc-shaped needle clamp for foam according to claim 3, characterized in that: A protective sleeve (9) is provided on the support block (8).

5. The arc-shaped needle clamp for foam according to claim 4, characterized in that: The protective sleeve (9) is provided with a number of holes (10), and the number of holes (10) corresponds one-to-one with the number of arc-shaped needle-type grippers (6).

6. The arc-shaped needle clamp for foam according to claim 1, characterized in that: A first bolt (11) is provided at the connection between the piston rod (2) and the plurality of the changing joints (3), and the first bolt (11) is connected through the piston rod (2) and the plurality of the changing joints (3).

7. The arc-shaped needle clamp for foam according to claim 1, characterized in that: Several second bolts (12) are provided at the connection points of several of the aforementioned changing hinges (3) and several of the aforementioned connecting rods (4).

8. The arc-shaped needle clamp for foam according to claim 1, characterized in that: A plurality of third bolts (13) are provided at the connection points of a plurality of the connecting rods (4) and a plurality of the first joints (5), and the third bolts (13) are connected through the plurality of the connecting rods (4) and the plurality of the first joints (5).

9. The arc-shaped needle clamp for foam according to claim 1, characterized in that: Several fourth bolts (14) are provided on several of the first joints (5).

10. An arc-shaped needle clamp for foam according to claim 1, characterized in that: The transmission cylinder (1) is provided with several support bolts (15) at the top and bottom.

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