Fixed clamping mechanism for thread rolling and embossing of metal cover body

Abstract

The utility model discloses a fixing and clamping mechanism for thread rolling and embossing of a metal cap body, which belongs to the technical field of bottle cap processing and comprises a fixing clamp and an adjusting ejector rod, the surface of the fixing clamp is provided with a thread groove and an anti-skid thread groove, and an ejector rod through hole matched with the adjusting ejector rod penetrates through the axis of the fixing clamp; the fixing clamp is composed of at least two clamp blocks, the intersection of every two adjacent clamp blocks is provided with a spring hole and a tension spring, and the rear end of the fixing clamp is movably connected with a driving sleeve and a driving motor. The outer diameter of the adjusting ejector rod is gradually reduced from the front end to the rear end, and the rear end of the adjusting ejector rod is provided with a movable push rod enabling the adjusting ejector rod to reciprocate in the front-back direction. Deformation of the metal cover body in the machining process and deformation of the machined threads and anti-skid lines can be avoided, and the quality of the machined metal cover body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap processing, in particular to a fixing clamping mechanism used for thread rolling and embossing of a metal cap body. Background Art

[0002] The cover of a metal cover usually needs to be formed with threads through a thread rolling process and with anti-slip patterns through an embossing process. It is usually necessary to put the metal cover to be processed on a rotating roller in advance. The thread rolling process is to roll the surface of the metal cover by a rotating thread rolling roller and move in one direction at the same time, so that threads are formed on the inside of the metal cover, while the embossing process is to roll the surface of the metal cover by a rotating embossing roller. The surface of the embossing roller is provided with a number of pressure blocks similar to gear teeth. A circle of anti-slip patterns is formed on the surface of the metal cover after thread rolling. Since both the threads and the anti-slip patterns will be recessed into the metal cover, in order to prevent the processed metal cover from being unable to detach from the roller, a certain gap needs to be left between the position of the threads and anti-slip patterns to be processed on the inner wall of the metal cover and the roller. However, the metal cover may be deformed due to insufficient support during the rolling process, or the threads or anti-slip patterns after processing may not meet the standards, affecting the quality of the metal cover. Therefore, a fixed clamping structure is needed that can firmly fix the metal cover during the process of processing threads and anti-slip patterns on the metal cover and can be easily detached after processing, so as to improve the quality of the processed metal cover. Utility Model Content

[0003] In response to the technical defects in the background technology, the present invention proposes a fixed clamping mechanism for rolling and embossing metal covers, which solves the above technical problems and meets practical needs. The specific technical solution is as follows:

[0004] A fixing and clamping mechanism for thread rolling and embossing a metal cover, comprising a fixing fixture and an adjustable push rod, wherein a thread groove and a plurality of anti-slip grooves are provided on a radial surface of the fixing fixture, wherein the thread groove spirally extends along an extension direction of the fixing fixture, and the plurality of anti-slip grooves surround a circle along the surface of the fixing fixture, wherein a push rod through hole matching the adjustable push rod is passed through the axis of the fixing fixture, and the adjustable push rod is disposed in the push rod through hole;

[0005] The fixing fixture is composed of at least two fixture blocks of the same shape. Each intersection of adjacent fixture blocks is provided with a spring hole. A tension spring is provided in the spring hole. The two ends of the tension spring are respectively fixedly connected to the two adjacent fixture blocks. The rear end of the fixing fixture is movably connected to a drive sleeve, and the rear end of the drive sleeve is provided with a drive motor.

[0006] The outer diameter of the adjusting push rod gradually decreases from the front end to the rear end. The rear end of the adjusting push rod is provided with a movable push rod that enables the adjusting push rod to reciprocate in the front and rear directions. The movable push rod is located in the driving sleeve.

[0007] As a further technical solution of the present invention, the rear end of the clamp assembly block is provided with at least one slide groove, the front end of the drive sleeve is provided with a slider matching the slide groove, and the slider is located in the slide groove.

[0008] As a further technical solution of the present invention, two slide grooves are provided at the rear end of the clamp assembly block, and the number of sliders at the front end of the drive sleeve matches the number of slide grooves.

[0009] As a further technical solution of the present invention, each intersection of adjacent clamp blocks is commonly provided with two spring holes, and the number of the tension springs matches the number of the spring holes.

[0010] As a further technical solution of the present invention, the movable push rod includes a fixed end fixedly connected to the driving sleeve and a movable end reciprocating at the front end of the fixed end, and the movable end is fixedly connected to the adjusting push rod.

[0011] As a further technical solution of the present invention, a buffer pad is provided at the front end of the adjusting push rod.

[0012] As a further technical solution of the present invention, a fixed bracket is movably connected to the outside of the driving sleeve, a bearing is provided between the driving sleeve and the fixed bracket, and the fixed bracket is fixedly connected to the driving motor via a fixing bolt.

[0013] The beneficial effects of the present invention are:

[0014] The fixing clamp of the utility model increases the outer diameter of the two clamp blocks after the adjustment push rod moves backward, thereby clamping and fixing the metal cover body that is undergoing thread and anti-slip groove processing. When the push rod is adjusted to move forward after the metal cover body is processed, the two clamp blocks move toward each other under the tension of the tension spring, so that the outer diameter of the fixing clamp is reduced, so that the metal cover body can be easily separated from the fixing clamp, thereby improving the processing efficiency of the metal cover body. The fixing clamp of the utility model can provide sufficient support for the metal cover body during processing, avoid deformation of the metal cover body during processing and deformation of the processed threads and anti-slip grooves, and improve the quality of the metal cover body after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a structural diagram of a fixed clamping mechanism used for thread rolling and embossing of a metal cover.

[0016] Figure 2 The present invention is a structural schematic diagram showing a fixing fixture of a fixing clamping mechanism for thread rolling and embossing of a metal cover in a closed state.

[0017] Figure 3 The diagram is a disassembly diagram of a fixed clamping mechanism used for thread rolling and embossing of a metal cover.

[0018] Figure 4 yes Figure 3 Schematic diagram from another angle.

[0019] Figure 5 The present invention is a structural schematic diagram of a second embodiment of a fixed clamping mechanism for thread rolling and embossing of a metal cover.

[0020] Among them: fixing fixture 1, thread groove 11, anti-slip groove 12, push rod through hole 13, fixture assembly block 14, spring hole 15, tension spring 16, slide groove 17, adjustment push rod 2, buffer pad 21, drive sleeve 3, slider 31, drive motor 4, movable push rod 5, fixed bracket 6. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention in conjunction with the accompanying drawings and relevant embodiments. The implementation of the present invention is not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0022] like Figure 1-4 As shown, a fixing clamping mechanism for rolling and embossing a metal cover comprises a fixing fixture 1 and an adjusting push rod 2. The fixing fixture 1 is provided with a thread groove 11 and a plurality of anti-slip grooves 12 on its radial surface. The thread groove 11 spirally extends along the extension direction of the fixing fixture 1. The plurality of anti-slip grooves 12 surround the surface of the fixing fixture 1. The axis of the fixing fixture 1 is penetrated by a push rod through hole 13 that matches the adjusting push rod 2. The adjusting push rod 2 is arranged in the push rod through hole 13. The fixing fixture 1 is composed of at least two fixture blocks 14 of the same shape. Each intersection of adjacent clamp blocks 14 is commonly provided with a spring hole 15, and a tension spring 16 is arranged in the spring hole 15. The two ends of the tension spring 16 are respectively fixedly connected to the two adjacent clamp blocks 14. The rear end of the fixed clamp 1 is movably connected with a driving sleeve 3, and the rear end of the driving sleeve 3 is provided with a driving motor 4; the outer diameter of the adjusting push rod 2 gradually decreases from the front end to the rear end, and the rear end of the adjusting push rod 2 is provided with a movable push rod 5 that enables the adjusting push rod 2 to reciprocate in the front and rear directions, and the movable push rod 5 is located in the driving sleeve 3.

[0023] The utility model is used to fix the metal cover when the metal cover is subjected to thread rolling and embossing processes. The main structure for fixing the metal cover is a fixing fixture 1. The metal cover is sleeved on the front end of the fixing fixture 1. In the fixing fixture 1, the thread groove 11 and the anti-skid groove 12 are respectively located at the rear end and the front end of the surface of the fixing fixture 1. The fixing fixture 1 is driven to rotate by a driving motor 4, and then the surface of the metal cover is rolled by a thread rolling roller matched with the thread groove 11 and an embossing roller matched with the anti-skid groove 12. The thread rolling roller moves forward or backward during the rolling process, so that the inner wall of the metal cover is formed with threads and the surface is formed with anti-skid grooves, and the threads on the inner wall of the metal cover are Located near its opening, the anti-slip pattern is located on the surface of the metal cover away from the opening. The metal cover can be fixed by rotating the thread at the opening to engage with the thread of the can body. The anti-slip pattern can increase the friction between the metal cover when the hand rotates the metal cover, thereby making the metal cover easier to rotate; in the process of rolling the metal cover by the thread rolling roller and the embossing roller, the thread and the anti-slip pattern will be embedded in the thread groove 11 and the anti-slip pattern groove 12 respectively, so the surface of the fixing fixture 1 can abut against the inner wall of the metal cover, providing sufficient support for it during the processing of the metal cover, avoiding deformation of the metal cover body and the processed thread and anti-slip pattern, and improving the quality of the processed metal cover.

[0024] After adopting the above structure, it should be noted that in order to avoid the difficulty of separating the metal cover and the fixing clamp 1 after the thread of the inner wall of the metal cover is embedded in the thread groove 11, the utility model assembles two clamp blocks 14 to obtain a fixing clamp 1 with a cylindrical outer surface shape. The two clamp blocks 14 are fixed to the fixing clamp 1 by the tension provided by the tension spring 16 in the spring hole 15. At this time, the outer diameter of the fixing clamp 1 is smaller than the inner diameter of the metal cover, so that the metal cover can be smoothly put on the fixing clamp 1 from the front end of the fixing clamp 1. Then the movable push rod 5 at the rear end of the adjusting push rod 2 pulls the adjusting push rod 2 to move backward. Since the outer diameter of the front end of the adjusting push rod 2 is larger, the two clamp blocks 14 will move backward with the adjusting push rod 2. They are squeezed to move away from each other and the tension spring 16 is stretched, so that the outer diameter of the fixing clamp 1 increases and fixes it from the inner wall of the metal cover. Then, the metal cover is processed with threads and anti-slip grooves through the above steps. After the metal cover is processed, the movable push rod 5 pushes the adjusting push rod 2 to move forward. During this process, the two clamp blocks 14 will move relative to each other under the action of the tension generated by the contraction of the tension spring 16 until they abut against each other. At this time, the fixing clamp 1 is in a closed state, so that the outer diameter of the fixing clamp 1 is reduced, thereby canceling the fixation of the metal cover. As the adjusting push rod 2 continues to move forward, its front end will abut against the inner wall of the metal cover and push it away from the fixing clamp 1, thereby completing the processing of threads and anti-slip grooves on the metal cover.

[0025] Furthermore, the shape of the push rod through hole 13 at the axis of the fixing clamp 1 is preferably matched with the shape of the outer surface of the adjusting push rod 2. After adopting this structure, when the movable push rod 5 pulls the adjusting push rod 2 to move backward, the radial surface of the adjusting push rod 2 can completely contact the inner wall of the push rod through hole 13, so that the force applied by the adjusting push rod 2 on the inner wall of the push rod through hole 13 is more uniform, thereby making the two clamp blocks 14 smoother during the back and forth movement, and making the outer diameter of the fixing clamp 1 increase evenly and consistently, so as to better clamp and fix the metal cover body, and avoid deformation of the metal cover body during the process of being fixed on the surface of the fixing clamp 1.

[0026] The fixing fixture 1 of the present invention increases its outer diameter by squeezing the two fixture blocks 14 when adjusting the push rod 2 to move backward, thereby clamping and fixing the metal cover body that is undergoing thread and anti-slip groove processing. After the metal cover body is processed, when the push rod 2 is adjusted to move forward, the two fixture blocks 14 move toward each other under the tension of the tension spring 16, so that the outer diameter of the fixing fixture 1 is reduced, so that the metal cover body can be easily separated from the fixing fixture 1, thereby improving the processing efficiency of the metal cover body. The fixing fixture 1 of the present invention can provide sufficient support for the metal cover body during processing, avoid deformation of the metal cover body during processing and deformation of the processed threads and anti-slip grooves, and improve the quality of the processed metal cover body.

[0027] like Figure 3 、 4 As shown, as one of the preferred embodiments of the present invention, the rear end of the clamp assembly block 14 is provided with at least one slide groove 17 , and the front end of the drive sleeve 3 is provided with a slider 31 matching the slide groove 17 , and the slider 31 is located in the slide groove 17 .

[0028] The utility model changes the outer diameter of the fixing fixture 1 by moving the two clamp blocks 14 back and forth or toward each other. The direction in which the slide groove 17 extends is the same as the direction in which the clamp block 14 moves, so that the clamp block 14 can only move along the extension direction of the slide groove 17. When the driving motor 4 rotates the driving sleeve 3, the fixing fixture 1 can be rotated synchronously through the slider 31.

[0029] like Figure 3 、 4 As shown in FIG. 1 , as one of the preferred embodiments of the present invention, two slide grooves 17 are provided at the rear end of the clamp assembly block 14 , and the number of the sliders 31 at the front end of the driving sleeve 3 matches the number of the slide grooves 17 .

[0030] Two slide grooves 17 are provided at the rear end of the clamp assembly block 14 of the present invention, which can make the clamp assembly block 14 move more smoothly along the slide grooves 17, and the clamp assembly block 14 can be movably connected to the drive sleeve 3 by matching the two slide grooves 17 with the two sliders 31, so that the fixed clamp 1 can be more stable during the rotation process.

[0031] like Figure 3 、 4 As shown in FIG. 1 , as one of the preferred embodiments of the present invention, two spring holes 15 are commonly provided at each intersection of adjacent clamp blocks 14 , and the number of tension springs 16 matches the number of spring holes 15 .

[0032] The shape of the fixing clamp 1 of the present invention is similar to a torus. When the clamp block 14 is composed of two pieces, there will be two intersections between adjacent clamp blocks 14. When the clamp block 14 is composed of three pieces or more, there will be one intersection between adjacent clamp blocks 14. In order to ensure that the clamp blocks 14 can be assembled into a fixing clamp under the action of the tension of the tension spring 16, a spring hole 15 and a tension spring 16 are provided at each intersection of adjacent clamp blocks 14.

[0033] Furthermore, the clamp assembly block 14 can be provided with a threaded hole that passes through the spring hole 15, and a fixing bolt matching the threaded hole is screwed into the threaded hole, and the end of the fixing bolt is fixed to one end of the tension spring 16, thereby fixing the clamp assembly block 14 and the tension spring 16.

[0034] like Figure 3 、 4 As shown, as one of the preferred embodiments of the present invention, the movable push rod 5 includes a fixed end fixedly connected to the driving sleeve 3 and a movable end reciprocating in front of the fixed end, and the movable end is fixedly connected to the adjusting push rod 2.

[0035] The movable push rod 5 of the present invention is preferably a common linear drive, the fixed end includes the outer shell of the linear drive, the guide sleeve and other components, the movable end is a push rod, and the movable end is driven by a motor to reciprocate along a straight line, so that the adjusting push rod 2 reciprocates along the front and rear directions to change the outer diameter of the fixing fixture 1. The linear drive has the advantages of high precision, stable operation, and good self-locking performance, so that the fixing fixture 1 can fix the metal cover well.

[0036] like Figure 3 、 4 As shown in FIG. 1 , as one of the preferred embodiments of the present invention, a buffer pad 21 is provided at the front end of the adjusting push rod 2 .

[0037] The buffer pad 21 of the present invention is made of relatively soft and elastic materials such as silicone and rubber. The buffer pad 21 can serve as a buffer structure between the adjusting top rod 2 and the metal cover body. When the processed metal cover body is pushed away from the fixing clamp 1 by the forward moving adjusting top rod 2, the buffer pad 21 can buffer the process to prevent the deceleration cover body from being deformed by a large impact force.

[0038] like Figure 5As shown, as the second preferred embodiment of the present invention, the driving sleeve 3 is movably connected to a fixing bracket 6, a bearing is provided between the driving sleeve 3 and the fixing bracket 6, and the fixing bracket 6 is fixedly connected to the driving motor 4 by fixing bolts.

[0039] The utility model is fixed on the equipment for rolling and embossing the metal cover through a fixed bracket 6. The fixed bracket 6 fixes the drive motor 4 to withstand the reaction force when the drive motor 4 is running, and the top of the fixed bracket 6 is movably connected to the drive sleeve 3 through a bearing to ensure the normal rotation of the drive sleeve 3 and the fixing fixture 1 while providing support force, ensuring that the metal cover can smoothly perform the rolling and embossing processes.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fixing clamping mechanism for rolling and embossing a metal cover, comprising a fixing fixture (1) and an adjusting push rod (2), characterized in that: The radial surface of the fixing fixture (1) is provided with a thread groove (11) and a plurality of anti-skid grooves (12), the thread groove (11) spirally extends along the extension direction of the fixing fixture (1), and the plurality of anti-skid grooves (12) surround the surface of the fixing fixture (1), and the axis of the fixing fixture (1) is penetrated by a push rod through hole (13) matching the adjusting push rod (2), and the adjusting push rod (2) is arranged in the push rod through hole (13); The fixing fixture (1) is composed of at least two fixture blocks (14) of the same shape, each intersection of adjacent fixture blocks (14) is provided with a spring hole (15), a tension spring (16) is provided in the spring hole (15), and both ends of the tension spring (16) are fixedly connected to the two adjacent fixture blocks (14), and the rear end of the fixing fixture (1) is movably connected to a driving sleeve (3), and the rear end of the driving sleeve (3) is provided with a driving motor (4); The outer diameter of the regulating push rod (2) gradually decreases from the front end to the rear end. The rear end of the regulating push rod (2) is provided with a movable push rod (5) for causing the regulating push rod (2) to reciprocate in the front-back direction. The movable push rod (5) is located in the driving sleeve (3).

2. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 1, characterized in that: The rear end of the clamp assembly (14) is provided with at least one slide groove (17), and the front end of the drive sleeve (3) is provided with a slider (31) matching the slide groove (17), and the slider (31) is located in the slide groove (17).

3. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 2, characterized in that: The rear end of the clamp assembly block (14) is provided with two slide grooves (17), and the number of the sliders (31) at the front end of the drive sleeve (3) matches the number of the slide grooves (17).

4. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 1, characterized in that: Each intersection of adjacent clamp blocks (14) is provided with two spring holes (15) in common, and the number of the tension springs (16) matches the number of the spring holes (15).

5. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 1, characterized in that: The movable push rod (5) comprises a fixed end fixedly connected to the drive sleeve (3) and a movable end reciprocating at the front end of the fixed end, and the movable end is fixedly connected to the regulating push rod (2).

6. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 1, characterized in that: A buffer pad (21) is provided at the front end of the adjusting push rod (2).

7. The fixing and clamping mechanism for thread rolling and embossing of a metal cover according to claim 1, characterized in that: The drive sleeve (3) is movably connected to a fixed bracket (6) outside, a bearing is provided between the drive sleeve (3) and the fixed bracket (6), and the fixed bracket (6) is fixedly connected to the drive motor (4) via a fixing bolt.

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