Bottle cap grabbing mechanism and cap screwing machine

Abstract

The utility model relates to the technical field of bottle cap clamping and discloses a bottle cap grabbing mechanism and a cap screwing machine, the bottle cap grabbing mechanism comprises a driving air cylinder and a plurality of clamping jaws, the driving air cylinder is provided with a first mounting end and a second mounting end which are opposite, and the first mounting end extends in the direction away from the driving air cylinder to form an abutting seat; the abutting seat is used for abutting against the top surface of the bottle cap; all the clamping jaws are distributed on the periphery of the abutting base along the center of the driving air cylinder and jointly define a clamping space used for clamping the bottle caps, and the driving air cylinder is used for driving the clamping jaws to be close to or away from the abutting base so as to adjust the size of the clamping space. An elastic block is arranged on the side face, facing the abutting base, of each clamping jaw, the surface, facing the abutting base, of each elastic block is an arc-shaped face, and when the bottle cap is clamped, the arc-shaped faces of the elastic blocks are attached to the peripheral wall of the bottle cap. The bottle cap can be prevented from being extruded and deformed due to too large extrusion force of the clamping jaws, meanwhile, the elastic blocks have good abrasion resistance, and the problem that the bottle cap is abraded due to the fact that the clamping jaws make contact with the bottle cap repeatedly can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap grabbing mechanisms, in particular to a bottle cap grabbing mechanism and a capping machine. Background Art

[0002] Bottle caps are commonly used as sealing components, attached to the bottle body. They are manufactured first, then assembled with the bottle body after the product is loaded into the bottle body to seal the bottle. Currently, most bottle caps are secured to the bottle body using a gripping mechanism that grabs the cap and lifts it to the bottle mouth. The gripping mechanism is then driven to rotate and tighten the cap onto the bottle body. However, this gripping process can easily cause wear and even damage to the cap, reducing production efficiency. Utility Model Content

[0003] The purpose of this application is to provide a bottle cap grabbing mechanism, which aims to solve the problem that the bottle cap is easily worn during the current grabbing process, thereby causing damage to the bottle cap.

[0004] In a first aspect, an embodiment of the present application provides a bottle cap gripping mechanism, comprising:

[0005] A driving cylinder having a first mounting end and a second mounting end opposite to each other, wherein the first mounting end is provided with an abutment seat extending in a direction away from the driving cylinder, and the abutment seat is used to abut against the top surface of the bottle cap;

[0006] a plurality of clamping jaws, all of which are distributed around the periphery of the abutment seat along the center of the driving cylinder and together enclose a clamping space for clamping the bottle cap, and the driving cylinder is used to drive the clamping jaws to move closer to or away from the abutment seat to adjust the size of the clamping space;

[0007] Wherein, each clamping jaw is provided with an elastic block on the side facing the abutment seat, and the surface of the elastic block facing the abutment seat is an arc-shaped surface. When clamping the bottle cap, the arc-shaped surface of the elastic block fits the outer peripheral wall of the bottle cap.

[0008] In one embodiment, a mounting position is provided on the side of the clamping jaw facing the abutment seat, the elastic block at least partially extends into the mounting position for fixation, and the portion of the elastic block having the arcuate surface protrudes outside the mounting position.

[0009] In one embodiment, a through hole communicating with the mounting position is formed on a surface of the clamping jaw facing away from the abutment seat.

[0010] In one embodiment, it also includes a connecting block corresponding to the multiple clamping jaws one by one, and a sliding groove is opened on the end surface of the first mounting end. The connecting block can be slidably connected in the sliding groove and is connected to the clamping jaw; when the driving cylinder drives the connecting block to slide in the sliding groove, the clamping jaw is driven close to or away from the abutment seat.

[0011] In one embodiment, a groove is provided at one end of the clamping jaw close to the connecting block, a first mounting hole is opened in the groove, a connecting portion is extended from the surface of the connecting block connected to the clamping jaw, a second mounting hole adapted to the first mounting hole is provided on the connecting portion, and when the clamping jaw is connected to the connecting block, the connecting portion is at least partially engaged in the groove, and the first mounting hole and the second mounting hole are aligned.

[0012] In one embodiment, the surface of the abutting seat for abutting against the top surface of the bottle cap is provided with an elastic pad.

[0013] In one embodiment, it also includes a connecting column and a connecting plate, one end of the connecting column is connected to the surface of the abutment seat close to the driving cylinder, and the other end of the connecting column is connected to the connecting plate, and the end surface of the first mounting end is provided with a mounting groove for mounting the connecting plate.

[0014] In one embodiment, a first fixing hole is formed on the connecting plate, and a second fixing hole that matches the first fixing hole is formed on the bottom surface of the mounting groove.

[0015] In one embodiment, the elastic block is made of eutectic.

[0016] In a second aspect, an embodiment of the present application further provides a capping machine, comprising the bottle cap gripping mechanism of the above embodiment.

[0017] Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following beneficial effects:

[0018] When grabbing the bottle cap, the driving cylinder controls the multiple clamping jaws to move in the direction away from the abutment seat, so that the clamping space is increased, and then the driving cylinder is driven to approach the bottle cap until the bottle cap is located in the clamping space and the top surface of the bottle cap abuts the abutment seat. The driving cylinder controls the multiple clamping jaws to move in the direction close to the abutment seat, so that the multiple clamping jaws continuously shrink and clamp the side wall of the bottle cap, thereby achieving clamping of the bottle cap without manual operation, which is conducive to reducing labor intensity. At the same time, the elastic block arranged on the side of the clamping jaw facing the abutment seat can provide a certain deformation to prevent the clamping jaw from being squeezed and deformed due to excessive squeezing force. At the same time, the elastic block also has good wear resistance, which can effectively solve the problem of bottle cap wear caused by repeated contact between the clamping jaw and the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a bottle cap grabbing mechanism according to an embodiment of the present application;

[0020] Figure 2 This is a structural schematic diagram of a bottle cap grabbing mechanism according to an embodiment of the present application from another perspective;

[0021] Figure 3 This is an exploded schematic diagram of a connecting block, a clamping claw, and an elastic block in a bottle cap grabbing mechanism according to an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of an exploded view of a driving cylinder and an abutment seat in a bottle cap grabbing mechanism according to an embodiment of the present application.

[0023] Numbers in the figure:

[0024] 100. Bottle cap grasping mechanism; 10. Driving cylinder; 10a. Slide groove; 10b. Mounting groove; 20. Abutment seat; 30. Clamping claw; 30a. Mounting position; 30b. Perforation; 30c. Groove; 30d. First mounting hole; 40. Elastic block; 40a. Arc-shaped surface; 50. Connecting block; 50a. Connecting portion; 60. Column; 60a. Connecting hole; 70. Elastic pad; 80. Connecting column; 90. Connecting plate; 90a. First fixing hole; A. Clamping space. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0026] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] Please refer to Figures 1 to 4The embodiment of the present application provides a bottle cap gripping mechanism 100, which includes a driving cylinder 10 and a plurality of clamping jaws 30. The driving cylinder 10 has a first mounting end and a second mounting end opposite each other. The first mounting end has an abutment seat 20 extending away from the driving cylinder 10. The abutment seat 20 is used to abut against the top surface of the bottle cap. All the clamping jaws 30 are distributed around the abutment seat 20 along the center of the driving cylinder 10 and together form a clamping space for clamping the bottle cap. The driving cylinder 10 is used to drive the clamping jaws 30 to move closer to or away from the abutment seat 20 to adjust the size of the clamping space A.

[0028] In actual application, the bottle cap grabbing mechanism 100 needs to be used in conjunction with the lifting and rotating mechanism, that is: a column 60 is extended in the vertical direction at the end of the second mounting end, and a connecting hole 60a for connecting to the lifting and rotating mechanism is opened on the column 60. When the bottle body needs to be covered, the lifting and rotating mechanism drives the driving cylinder 10 to move to the bottle cap placement area, and controls the multiple clamping claws 30 to move away from the abutment seat 20 through the driving cylinder 10, so that the clamping space A is increased, and then drives the driving cylinder 10 to approach the bottle cap until the bottle cap is located in the clamping space A, and After the top surface of the bottle cap abuts the abutment seat 20, the driving cylinder 10 controls the multiple clamping claws 30 to move in the direction close to the abutment seat 20, so that the multiple clamping claws 30 continuously shrink to clamp the side wall of the bottle cap, thereby achieving the clamping of the bottle cap, and then the lifting and rotating mechanism drives the driving cylinder 10 to transfer to the bottle body, so that the captured bottle cap is placed at the bottle mouth of the bottle body, and finally drives the driving cylinder 10 to rotate so that the bottle cap is installed at the bottle mouth of the bottle body, thereby completing the automatic capping and screwing operation of the bottle body, without manual operation, which is conducive to reducing labor intensity and improving production efficiency. It should be noted that the lifting and rotating mechanism is common knowledge in the prior art, and specific reference can be made to the prior art, without limitation.

[0029] Furthermore, the "multiple grippers 30" mentioned above refer to two or more grippers, and the number of grippers 30 may be selected based on the size of the bottle cap and is not limited thereto. For example, if the bottle cap being gripped is small and securely gripped with only two grippers 30, two grippers 30 may be used; if the bottle cap being gripped is large and securely gripped with three grippers 30 is required, three grippers 30 may be used.

[0030] Each clamping jaw 30 is provided with an elastic block 40 on the side facing the abutment seat 20. The surface of the elastic block 40 facing the abutment seat 20 is a curved surface 40a. When clamping a bottle cap, the curved surface 40a of the elastic block 40 conforms to the outer peripheral wall of the bottle cap. In other words, when the clamping jaw 30 clamps the bottle cap, the elastic block 40 contacts the outer peripheral wall of the bottle cap and is squeezed and deformed during this process. This prevents the clamping jaw 30 from being squeezed and deformed due to excessive squeezing force. The elastic block 40 also has excellent wear resistance, effectively preventing the problem of bottle cap wear caused by repeated contact between the clamping jaw 30 and the bottle cap. In addition, the curved surface 40a on the surface of the elastic block 40 near the abutment seat 20 is designed to perfectly conform to the contour of the bottle cap when grasping the bottle cap, which helps to improve the stability of grasping the bottle cap.

[0031] In practical applications, the elastic block 40 is made of urethane foam. Urea foam has both the rigidity of plastic and the elasticity of rubber, making the elastic block 40 cushioning and wear-resistant, thereby effectively solving the problem of bottle cap wear caused by repeated contact between the clamping jaws 30 and the bottle cap.

[0032] The bottle cap grabbing mechanism 100 based on the above technical features, when grabbing the bottle cap, controls the multiple clamping jaws 30 to move in the direction away from the abutment seat 20 by driving the cylinder 10, so that the clamping space A is increased, and then drives the driving cylinder 10 to approach the bottle cap until the bottle cap is located in the clamping space A and the top surface of the bottle cap abuts the abutment seat 20, and then drives the driving cylinder 10 to control the multiple clamping jaws 30 to move in the direction close to the abutment seat 20, so that the multiple clamping jaws 30 continuously contract to clamp the side wall of the bottle cap, thereby achieving clamping of the bottle cap without manual operation, which is conducive to reducing labor intensity. At the same time, the elastic block 40 arranged on the side of the clamping jaw 30 facing the abutment seat 20 can provide a certain deformation to prevent the clamping jaw 30 from being squeezed and deformed due to excessive squeezing force, and the elastic block 40 also has good wear resistance, which can effectively solve the problem of bottle cap wear caused by repeated contact between the clamping jaw 30 and the bottle cap.

[0033] In one embodiment, a mounting position 30a is provided on the side of the clamping jaw 30 facing the abutment seat 20. The elastic block 40 at least partially extends into the mounting position 30a for fixation, and the portion of the elastic block 40 with the curved surface 40a protrudes outside the mounting position 30a. This allows the elastic block 40 to be fixed by extending into the mounting position 30a while the portion with the curved surface 40a protrudes outside the mounting position 30a, utilizing its deformable nature. This eliminates the need for fasteners (e.g., bolts) for fixation, resulting in a more aesthetically pleasing appearance.

[0034] In one embodiment, a through-hole 30b is formed on the surface of the clamping jaw 30 facing away from the abutment seat 20 and communicates with the mounting position 30a. Therefore, to remove the elastic block 40 from the clamping jaw 30, a tool is simply inserted through the through-hole 30b into the mounting position 30a and pushed to quickly remove the elastic block 40 from the mounting position 30a, enabling quick replacement of the elastic block 40.

[0035] In one embodiment, a connecting block 50 is further included, corresponding to each of the plurality of clamping jaws 30. A slot 10a is defined on the end surface of the first mounting end. The connecting block 50 is slidably connected within the slot 10a and is connected to the clamping jaws 30. When the driving cylinder 10 drives the connecting block 50 to slide within the slot 10a, the clamping jaws 30 are driven toward or away from the abutment seat 20. In this manner, by controlling the gas flowing into the driving cylinder 10, the connecting block 50 is driven to slide within the slot 10a, thereby driving the clamping jaws 30 connected to the connecting block 50 toward or away from the abutment seat 20, thereby clamping or releasing the bottle cap within the clamping space A.

[0036] In one embodiment, a groove 30c is formed at one end of the clamping jaw 30 near the connecting block 50, and a first mounting hole 30d is defined within the groove 30c. A connecting portion 50a extends from the surface of the connecting block 50 connected to the clamping jaw 30, and a second mounting hole is defined on the connecting portion 50a, which is compatible with the first mounting hole 30d. When the clamping jaw 30 is connected to the connecting block 50, the connecting portion 50a is at least partially engaged within the groove 30c, and the first mounting hole 30d and the second mounting hole are aligned. In other words, when the clamping jaw 30 is connected to the connecting block 50, the connecting portion 50a of the connecting block 50 is inserted into the groove 30c, at which point the first mounting hole 30d is aligned with the second mounting hole. Then, a fastener is sequentially inserted through the first mounting hole 30d and the second mounting block, thereby achieving a fixed connection between the clamping jaw 30 and the connecting block 50. This provides a simple structure and convenient assembly and disassembly.

[0037] In one embodiment, the surface of the abutment seat 20 that abuts against the top surface of the bottle cap is provided with an elastic pad 70. Thus, when the abutment seat 20 abuts against the top surface of the bottle cap, the elastic pad 70 can provide a certain buffer, avoiding direct contact between the two and the impact force generated, and can play a certain protective role.

[0038] In one embodiment, it also includes a connecting column 80 and a connecting disk 90, one end of the connecting column 80 is connected to the surface of the abutment seat 20 close to the driving cylinder 10, and the other end of the connecting column 80 is connected to the connecting disk 90, and the end face of the first mounting end is provided with a mounting groove 10b for mounting the connecting disk 90.

[0039] Specifically, the connecting plate 90 has a first fixing hole 90a, and the bottom surface of the mounting groove 10b has a second fixing hole that matches the first fixing hole 90a. In other words, when connecting the abutment seat 20 to the driving cylinder 10, the connecting plate 90 is first placed in the mounting groove 10b. Then, a fastener is inserted through the first fixing hole 90a on the connecting plate 90 and the second fixing hole in the mounting groove 10b, thereby removably connecting the abutment seat 20 to the driving cylinder 10. This simple structure allows for easy assembly and disassembly, facilitating subsequent replacement.

[0040] The embodiment of the present disclosure further provides a capping machine, comprising the bottle cap grasping mechanism 100 in the above embodiment.

[0041] The capping machine according to the embodiment of the present disclosure adopts the above-mentioned bottle cap grabbing mechanism 100 , and the technical effects thereof are consistent with those of the above-mentioned bottle cap grabbing mechanism 100 , which will not be described in detail here.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A bottle cap grabbing mechanism, characterized in that: include: A driving cylinder having a first mounting end and a second mounting end opposite to each other, wherein the first mounting end is provided with an abutment seat extending in a direction away from the driving cylinder, and the abutment seat is used to abut against the top surface of the bottle cap; a plurality of clamping jaws, all of which are distributed around the periphery of the abutment seat along the center of the driving cylinder and together enclose a clamping space for clamping the bottle cap, and the driving cylinder is used to drive the clamping jaws to move closer to or away from the abutment seat to adjust the size of the clamping space; Wherein, each clamping jaw is provided with an elastic block on the side facing the abutment seat, and the surface of the elastic block facing the abutment seat is an arc-shaped surface. When clamping the bottle cap, the arc-shaped surface of the elastic block fits the outer peripheral wall of the bottle cap.

2. The bottle cap grabbing mechanism according to claim 1, characterized in that: A mounting position is provided on the side of the clamping jaw facing the abutting seat, the elastic block at least partially extends into the mounting position for fixation, and the portion of the elastic block having the arcuate surface protrudes outside the mounting position.

3. The bottle cap grabbing mechanism according to claim 2, characterized in that: A through hole communicating with the installation position is formed on the surface of the clamping claw away from the abutting seat.

4. The bottle cap grabbing mechanism according to claim 1, characterized in that: It also includes a connecting block corresponding to the multiple clamping jaws one by one, and a sliding groove is provided on the end surface of the first mounting end. The connecting block can be slidably connected in the sliding groove and is connected to the clamping jaws; when the driving cylinder drives the connecting block to slide in the sliding groove, the clamping jaws are driven closer to or away from the abutment seat.

5. The bottle cap grabbing mechanism according to claim 4, characterized in that: A groove is provided at one end of the clamping jaw close to the connecting block, a first mounting hole is opened in the groove, a connecting portion is extended from the surface of the connecting block connected to the clamping jaw, a second mounting hole adapted to the first mounting hole is provided on the connecting portion, and when the clamping jaw is connected to the connecting block, the connecting portion is at least partially engaged in the groove, and the first mounting hole and the second mounting hole are aligned.

6. The bottle cap grabbing mechanism according to claim 1, characterized in that: The surface of the abutting seat for abutting against the top surface of the bottle cap is provided with an elastic pad.

7. The bottle cap grabbing mechanism according to claim 1, characterized in that: It also includes a connecting column and a connecting plate, one end of the connecting column is connected to the surface of the abutment seat close to the driving cylinder, and the other end of the connecting column is connected to the connecting plate, and the end surface of the first mounting end is provided with a mounting groove for mounting the connecting plate.

8. The bottle cap grabbing mechanism according to claim 7, characterized in that: A first fixing hole is formed on the connecting plate, and a second fixing hole adapted to the first fixing hole is formed on the bottom surface of the mounting groove.

9. The bottle cap grabbing mechanism according to claim 1, characterized in that: The elastic block is made of elastomeric rubber.

10. A capping machine, characterized in that: The bottle cap gripping mechanism comprises the bottle cap gripping mechanism according to any one of claims 1 to 9.

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