A vacuum adsorption positioning fixture for preventing paper deformation

Abstract

This utility model discloses a vacuum adsorption positioning fixture for preventing paper deformation, relating to the field of paper drums. It includes a guide rail, a movable seat slidably connected to the bottom of the guide rail, an external seat connected to the bottom of the movable seat, a pressing groove penetrating the bottom of the toothed disc, and a through hole penetrating the bottom of the base plate. Four sets of through holes and pressing grooves are provided. A connecting rod moves through the pressing grooves and through holes. A motor is mounted on the top of the fixing ring. In this vacuum adsorption positioning fixture for preventing paper deformation, the connecting rod's angle can be adjusted according to the movement of the fixing ball. When the angle is adjusted to a specified position, it can closely match the tilt angle of the paper drum, thus improving the stability and uniformity of the force and preventing deformation. When the fixing block slides out of the slot, the movable seat and the external seat separate, allowing a compatible external seat to be installed at the bottom of the movable seat, or a faulty external seat to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of paper drum technology, specifically a vacuum adsorption positioning tool for preventing paper drum deformation. Background Technology

[0002] The diaphragm is a key component in loudspeakers such as horns and stereos. It converts electrical signals into mechanical vibrations, which in turn drive the air to produce sound. The diaphragm needs to be moved during its processing, which can easily cause deformation of the diaphragm production line and thus affect the sound quality. Therefore, a vacuum adsorption positioning fixture is used. This fixture uses adsorption to hold the diaphragm in place, thereby moving it in position.

[0003] Currently, there are still some shortcomings in the adsorption fixtures, such as the fact that the drum paper is prone to deformation, which affects the quality of the sound emitted.

[0004] To overcome the problem of easy deformation of the drum paper, a prior art Chinese patent (publication number: CN215121199U) discloses a drum paper adsorption device for horns. It uses a second motor to drive a second lead screw to rotate, thereby driving a moving seat to reciprocate on a guide seat. When adsorbing the drum paper, the moving seat moves above the drum paper, and then the sliding seat moves up and down, thereby driving the adsorption device to adsorb the drum paper, improving the drum paper picking efficiency. The suction cups at the bottom of the adsorption device adsorb the drum paper, and the suction cups are evenly distributed on the suction cups, thereby making the adsorption of the drum paper more secure.

[0005] However, the currently used adsorption fixture still has some shortcomings. The above document improves the stability of the drum paper through adsorption and can prevent deformation. However, the tilt of the drum paper and the suction cup are prone to gaps, which may lead to instability when the suction cup is attached. In addition, there is a possibility of air leakage in some suction cup positions, which may easily cause damage to the drum paper. Therefore, the existing structure needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a vacuum adsorption positioning fixture for preventing paper deformation, in order to solve the problem mentioned in the background art where uneven force is applied to the paper during paper transfer, which easily causes paper deformation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vacuum adsorption positioning fixture for preventing paper deformation, comprising a guide rail, a movable seat slidably connected to the bottom of the guide rail, and an external seat connected to the bottom of the movable seat.

[0008] The upper surface of the external base is equipped with six sets of miniature air pumps. The bottom of each miniature air pump has six movable slots. A fixed ball is movably connected inside each movable slot. A connecting rod is fixed to the bottom of each fixed ball. A suction cup is connected to the bottom of the connecting rod. A flexible tube is connected between the connecting rod and the miniature air pump. The bottom of the external base is provided with an adjustment structure to improve the anti-deformation effect.

[0009] Furthermore, the adjustment structure includes a fixing ring fixed to the bottom of the outer seat, a base fixed to the bottom of the fixing ring, and a gear plate rotatably connected to the surface of the base via a bearing.

[0010] Furthermore, the bottom of the gear disc is provided with a pressing groove, and the bottom of the chassis is provided with a through hole. There are four sets of both the through hole and the pressing groove, and the connecting rod moves through the pressing groove and the through hole.

[0011] Furthermore, a motor is installed on the top of the fixed ring, and a gear is fixed to the output end of the motor. The gear rotates inside the fixed ring, and the gear is meshed with the gear disc.

[0012] Furthermore, the top of the external connector is provided with a locking mechanism for easy maintenance. The locking mechanism includes a fixing block fixed to the top of the external connector, and a through groove is provided on the side of the fixing block. An insert block is movably connected inside the through groove.

[0013] Furthermore, the top of the insert block is provided with a telescopic groove, and a telescopic block is slidably connected inside the telescopic groove by a spring. The bottom of the movable seat is provided with a slot, which is slidably connected to the fixed block and the insert block respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This anti-deformation vacuum adsorption positioning fixture for paper drums allows the connecting rod to be angled according to the movement of the fixed ball. When the angle is adjusted to the specified position, it can closely match the tilt angle of the paper drum, thus improving the stability and uniformity of the force and preventing deformation of the paper drum. When the fixed block slides out of the slot, the moving seat and the external seat will separate. The external seat of the appropriate specification can be installed at the bottom of the moving seat, or the faulty external seat can be replaced.

[0016] 2. It is equipped with a fixed ball, which can be used to squeeze the connecting rod at will, thereby adjusting the angle of the connecting rod from any direction, and better adapting to the inclination of the connecting rod and the paper drum.

[0017] 3. Equipped with a toothed disc, the rotation of the toothed disc can drive the extrusion groove to extrude the side wall of the connecting rod, and can change the angle of six sets of connecting rods at the same time, improving the anti-deformation of the operation.

[0018] 4. Equipped with telescopic blocks, the external base and the movable base can be quickly installed and disassembled by extending and retracting the telescopic blocks, which improves the efficiency of later maintenance of the positioning fixture and enhances the ease of use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model from a bottom view;

[0021] Figure 3 This is an enlarged three-dimensional structural diagram of the external connector of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the external connector of this utility model.

[0023] Figure 5 This is an enlarged three-dimensional structural diagram of the fixed ball of this utility model;

[0024] Figure 6 This is an enlarged three-dimensional structural diagram of the gear of this utility model;

[0025] Figure 7 This is an enlarged three-dimensional structural diagram of the insert block of this utility model;

[0026] Figure 8 This is an enlarged three-dimensional structural diagram of the telescopic block of this utility model.

[0027] In the diagram: 1. Guide rail; 2. Movable seat; 3. External seat; 101. Miniature air pump; 102. Movable groove; 103. Connecting rod; 104. Fixed ball; 105. Fixed ring; 106. Chassis; 107. Gear plate; 108. Extrusion groove; 109. Through hole; 110. Motor; 111. Gear; 301. Fixed block; 302. Through groove; 303. Insert block; 304. Telescopic groove; 305. Telescopic block; 306. Slot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1, such as Figures 1-6The present invention provides the following technical solution to address the problem of uneven force distribution during paper transfer by the positioning fixture, which easily leads to paper deformation. An adjustment mechanism is disclosed, comprising a guide rail 1, a movable seat 2 slidably connected to the bottom of the guide rail 1, and an external seat 3 connected to the bottom of the movable seat 2. Six sets of miniature air pumps 101 are mounted on the upper surface of the external seat 3. Each miniature air pump 101 has six movable slots 102 at its bottom. A fixed ball 104 is movably connected inside each movable slot 102. A connecting rod 103 is fixed to the bottom of each fixed ball 104. A suction cup is connected to the bottom of the connecting rod 103, and a flexible hose is connected between the connecting rod 103 and the miniature air pump 101. The bottom of the external seat 3 is provided with… An adjustment structure to improve the anti-deformation effect includes a fixing ring 105 fixed to the bottom of the outer seat 3, a base 106 fixed to the bottom of the fixing ring 105, a gear 107 rotatably connected to the surface of the base 106 via a bearing, a pressing groove 108 penetrating the bottom of the gear 107, and a through hole 109 penetrating the bottom of the base 106. Four sets of through holes 109 and pressing grooves 108 are provided. A connecting rod 103 moves through the pressing grooves 108 and through holes 109. A motor 110 is installed on the top of the fixing ring 105. A gear 111 is fixed to the output end of the motor 110. The gear 111 rotates inside the fixing ring 105 and is meshed with the gear 107.

[0030] When the positioning fixture is in use, the movable seat 2 slides inside the guide rail 1. As the movable seat 2 slides, it moves the connecting rod 103 directly above the paper drum. Then, based on the inclination of the paper drum surface, the motor 110 is activated. When the motor 110 starts, its output end drives the gear 111 to rotate. The rotation of the gear 111 drives the gear disc 107 to mesh and rotate. The gear disc 107 rotates via bearings, and its rotation drives the extrusion groove 108 to rotate. When the extrusion groove 108 rotates, its inner wall can engage with the connecting rod 103. When the connecting rod 103 is compressed, the fixed ball 104 can move inside the movable groove 102. The angle of the connecting rod 103 can be adjusted according to the movement of the fixed ball 104. When the angle is adjusted to the specified position, it can be close to the tilt angle of the drum paper. Then the connecting rod 103 drives the suction cup to approach the drum paper. The suction force generated by the micro air pump 101 can stably hold the drum paper in multiple directions. After holding it, the drum paper can be transferred for processing. The suction force that fits the drum paper better can improve the stability and uniformity of the force, thereby preventing the drum paper from deforming.

[0031] Example 2, as follows Figure 2 , Figure 7 and Figure 8The present invention provides the following technical solution: In order to solve the problem that the positioning fixture is inconvenient for later maintenance and affects the efficiency of use, based on the first embodiment, a locking mechanism is disclosed: The top of the outer seat 3 is provided with a locking mechanism that is easy to maintain. The locking mechanism includes a fixing block 301 fixed to the top of the outer seat 3. A through groove 302 is provided through the side of the fixing block 301. An insert block 303 is movably connected inside the through groove 302. A telescopic groove 304 is provided at the top of the insert block 303. A telescopic block 305 is slidably connected inside the telescopic groove 304 through a spring. A slot 306 is provided through the bottom of the movable seat 2. The slot 306 is slidably connected to the fixing block 301 and the insert block 303 respectively.

[0032] When the positioning fixture malfunctions or its specifications do not match the paper drum, the telescopic block 305 can be pressed to slide through the telescopic groove 304. When the telescopic block 305 slides, it can compress the spring. After the telescopic block 305 is compressed into the telescopic groove 304, the insert block 303 can be pulled out to slide through the through groove 302 and the slot 306. When the insert block 303 slides out of the through groove 302, the external connector 3 is pulled down. The external connector 3 can then drive the fixed block 301 to slide down through the slot 306. When the fixed block 301 slides out of the slot 306, the moving seat 2 and the external connector 3 will separate. At this time, the external connector 3 with the appropriate specifications can be installed at the bottom of the moving seat 2, or the faulty external connector 3 can be replaced, which improves the efficiency of the positioning fixture's later maintenance.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum adsorption positioning fixture for preventing paper deformation, comprising a guide rail (1), wherein a movable seat (2) is slidably connected to the bottom of the guide rail (1), and an external seat (3) is connected to the bottom of the movable seat (2), characterized in that: The upper surface of the external base (3) is equipped with six sets of miniature air pumps (101). The bottom of the miniature air pump (101) is provided with six movable slots (102). A fixed ball (104) is movably connected inside the movable slot (102). A connecting rod (103) is fixed at the bottom of the fixed ball (104). A suction cup is connected to the bottom of the connecting rod (103). A flexible hose is connected between the connecting rod (103) and the miniature air pump (101). The bottom of the external base (3) is provided with an adjustment structure to improve the anti-deformation effect.

2. The drum paper anti-deformation vacuum suction positioning tooling according to claim 1, characterized in that: The adjustment structure includes a fixing ring (105) fixed to the bottom of the outer seat (3), a base (106) fixed to the bottom of the fixing ring (105), and a gear plate (107) rotatably connected to the surface of the base (106) via a bearing.

3. The drum paper anti-deformation vacuum suction positioning tooling according to claim 2, characterized in that: The bottom of the toothed disc (107) is provided with a pressing groove (108), and the bottom of the chassis (106) is provided with a through hole (109). There are four sets of the through hole (109) and the pressing groove (108). The connecting rod (103) moves through the pressing groove (108) and the through hole (109).

4. The drum paper anti-deformation vacuum suction positioning tooling of claim 2, wherein: A motor (110) is mounted on the top of the fixed ring (105). A gear (111) is fixed at the output end of the motor (110). The gear (111) rotates inside the fixed ring (105) and is meshed with the gear disc (107).

5. The drum paper anti-deformation vacuum suction positioning tool of claim 1, wherein: The top of the external connector (3) is provided with a locking mechanism that is easy to maintain. The locking mechanism includes a fixing block (301) fixed on the top of the external connector (3). A through groove (302) is provided on the side of the fixing block (301). An insert block (303) is movably connected inside the through groove (302).

6. The drum paper anti-deformation vacuum suction positioning tooling of claim 5, wherein: The top of the insert (303) is provided with a telescopic groove (304), and a telescopic block (305) is slidably connected inside the telescopic groove (304) by a spring. The bottom of the movable seat (2) is provided with a slot (306), and the slot (306) is slidably connected to the fixed block (301) and the insert (303) respectively.

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