Jig for pasting mylar

Abstract

The utility model discloses a jig for applying mylar, which comprises a base, and a carrier plate is placed on the top surface of the base; a bearing table is convexly arranged on the carrier plate, and an avoiding table is convexly arranged on the bearing table; a guide elastic piece is arranged on the carrier plate and located on the periphery of the bearing table, a positioning middle frame is slidably connected to the guide elastic piece in the vertical direction, a cavity is formed in the positioning middle frame, the bearing table is located in the cavity, and the positioning middle frame can be close to or away from the upper surface of the carrier plate along the guide elastic piece; a pressing assembly is connected to the base and located above the positioning middle frame, and the pressing assembly can be close to or away from the surface of the bearing table. According to the mylar pasting device, the problem that the pasted mylar is easy to shift is solved, and meanwhile, the conditions that the mylar is blistered and the product is easy to crush are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board processing technical field, especially relate to a kind of jigs of pasting mela. BACKGROUND

[0002] Touchpad on computer is a kind of in notebook computer using the movement of inductive user finger to control cursor action equipment, it is usually by aluminum or aluminum alloy and so on metal material composition. When touchpad is installed on PCB, it is usually pasted with a layer of mela on the bottom to play the role of fixing components.

[0003] Mela is the film that is formed by heating dimethyl terephthalate and ethylene glycol under the assistance of relevant catalyst, through ester exchange and vacuum polycondensation, biaxial stretching. When pressing or pasting mela in prior art, on the one hand, there is inaccuracy in the position of pasting mela, which is easy to paste the position off-center; on the other hand, when pressing mela by air cylinder, it is easy to have the problem of excessive pressure and product damage; although manual pasting mela can avoid the problem of product damage, it is not uniform in pressing when pasting, which leads to the problem of mela blistering on the surface of touchpad. SUMMARY

[0004] The utility model provides a kind of jigs of pasting mela, both solve the problem of easy displacement of pasting mela, while avoid the situation of mela blistering and product easy to be damaged.

[0005] The technical scheme of the utility model is:

[0006] A kind of jigs of pasting mela, characterized by including base, the carrier plate is placed on the top surface of the base;The carrier plate is provided with a bearing table, and the bearing table is provided with an avoidance table;

[0007] The carrier plate is provided with a guide elastic member on the outer periphery of the bearing table, the guide elastic member is vertically slidably connected with a positioning middle frame, the positioning middle frame is provided with a cavity, and the bearing table is located in the cavity, and the positioning middle frame can be close to or away from the upper surface of the carrier plate along the guide elastic member;

[0008] The base is connected with a pressing assembly, and it is located above the positioning middle frame, and the pressing assembly can be close to or away from the surface of the bearing table.

[0009] Further, the inner side wall of each periphery of the cavity is adjacent to the corresponding outer periphery of the bearing table.

[0010] Further, the base is provided with a base groove, and the size of the base groove is suitable for the carrier plate, and the carrier plate is placed in the base groove.

[0011] Further, the guide elastic member includes a plurality of guide columns and a plurality of elastic members.

[0012] Each said elastic piece bottom end is connected to the surface of the carrier plate, each said guide column bottom end is fixedly connected to the surface of the carrier plate, all the guide column top ends are collectively provided through the positioning middle frame, and the bottom surface of the positioning middle frame abuts against each said elastic piece top end;

[0013] When the elastic piece is in a non-compressed state, the upper surface of the positioning middle frame is lower than the upper surface of the carrier plate and higher than the bottom surface of the positioning middle frame.

[0014] Further, a plurality of protruding portions are arranged on the upper surface of the positioning middle frame.

[0015] Further, a vertical plate is fixedly connected to the base, an adjusting groove is arranged on the vertical plate in the vertical direction, and the pressing assembly is detachably connected to the adjusting groove.

[0016] Further, the pressing assembly comprises a fixing block, a connecting rod mechanism and a pressing module, and a pressing block connecting rod is fixedly connected to the upper surface of the pressing module.

[0017] The fixing block is detachably connected to the adjusting groove, one end of the connecting rod mechanism is fixedly connected to the fixing block, and the other end of the connecting rod mechanism is slidably connected to the pressing block connecting rod; the bottom surface of the pressing module is provided with an avoiding space matched with the avoiding table; and the connecting rod mechanism drives the pressing module to move close to or away from the surface of the carrier plate in the vertical direction.

[0018] Further, the connecting rod mechanism comprises a sleeve seat, a crank rod and a connecting rod.

[0019] The sleeve seat is provided with a sleeve at the bottom end, and the upper end of the sleeve is hingedly connected to the tail end of the crank rod; the upper end of the pressing block connecting rod is provided through the sleeve to be hingedly connected to one end of the connecting rod; and the other end of the connecting rod is hingedly connected to the middle part of the crank rod.

[0020] Further, two straight line guide rods are arranged on the base in the vertical direction, and the two straight line guide rods are arranged on the two sides of the vertical plate.

[0021] Two through holes are arranged on the side of the pressing module close to the vertical plate, and the two straight line guide rods are respectively sleeved in the corresponding through holes.

[0022] The beneficial technical effects of the utility model are as follows:

[0023] Firstly, the utility model is provided with the positioning middle frame, which can position the Mylar together with the carrier plate, prevent the Mylar from being displaced when being pressed and attached, and ensure that the Mylar is accurately attached to the surface of the product;

[0024] Secondly, the lower pressing assembly can adjust the pressure applied on the product and the Mylar by adjusting the descending height, so that the product is not damaged by the excessive pressure while the Mylar is not bubbled by the uniform pressure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall schematic diagram of the utility model;

[0026] Figure 2 is Figure 1 is the schematic diagram after removing the vertical plate and the lower pressing assembly;

[0027] Figure 3 is Figure 2 is another angle schematic diagram;

[0028] Figure 4 is Figure 2 is the schematic diagram after removing the positioning middle frame;

[0029] Figure 5 is the schematic diagram of the lower pressing assembly of the utility model connected to the vertical plate;

[0030] Figure 6 is Figure 5 is another angle schematic diagram;

[0031] Figure 7 is the positioning middle frame schematic diagram of the utility model.

[0032] Among them:

[0033] 100-base, 101-base groove, 102-vertical plate, 103-adjusting groove, 104-linear guide rail; 200-carrier plate, 201-bearing table, 202-avoidance table, 203-mounting hole; 300-positioning middle frame, 301-cavity, 302-protruding part; 400-lower pressing assembly, 401-fixed block, 402-linkage mechanism, 4021-sleeve seat, 4022-crank rod, 4023-link, 403-lower pressing module, 4031-panel, 4032-lower pressing block, 4033-avoidance groove, 404-pressing block linkage; 501-guide column, 502-nut. DETAILED DESCRIPTION

[0034] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0035] As Figures 1-7As shown, the utility model provides a kind of jig of sticking melara, it is used to stick melara on product surface.The jig of sticking melara of the utility model includes base 100, the base 100 of the utility model is a rectangle, and a rectangular base recess 101 is formed on the base 100, and its size is suitable for the size of carrier plate 200, and carrier plate 200 is placed in the base recess 101.

[0036] In addition, in order to facilitate the taking and placing carrier plate 200, the base recess 101 is provided with an opening on one side.

[0037] The upper surface of carrier plate 200 is provided with a bearing table 201, and the bearing table 201 is used to place melara, and since the product to be stuck with melara is placed above melara in the utility model, the upper surface of the bearing table 201 is further provided with an avoidance table 202, which is used to avoid the parts on the product, and at this time, the position of the bearing table 201 on the carrier plate 200 except the avoidance table 202 is the melara placement area. Among them, the position, shape and size of the bearing table 201 on the carrier plate 200 can be set according to the sticking requirements of melara in actual production. In the utility model, the bearing table 201 is a rectangle, and is centrally arranged on the carrier plate 200.

[0038] In order to prevent the displacement of melara when it is stuck on the product under pressure, the upper surface of the carrier plate 200 and the outer periphery of the bearing table 201 are provided with a guide elastic member, and the guide elastic member is slidably connected with a positioning middle frame 300 in the vertical direction, wherein the middle part of the positioning middle frame 300 is provided with a cavity 301.

[0039] The guide elastic member includes a plurality of guide columns 501 and a plurality of elastic members. The number of guide columns 501 and elastic members can be set according to the actual size of the carrier plate 200 and the positioning middle frame 300, and there is no special limitation. In the utility model, four guide columns 501 are provided. The bottom ends of the four guide columns 501 are respectively fixedly connected to the four corner portions of the carrier plate 200, and the upper surface of the carrier plate 200 located at the outer periphery of the bearing table 201 is provided with a plurality of mounting holes 203 between the two guide columns 501, and each mounting hole 203 is provided with an elastic member. In addition to providing a vertical elastic support force for the positioning middle frame 300, the elastic member can drive the positioning middle frame 300 to reset by using its own elastic force. The top ends of the four guide columns 501 are collectively provided through the positioning middle frame 300, the bottom surface of the positioning middle frame 300 abuts against the top end of each elastic member, and the inner side wall of the cavity 301 is adjacent to the outer periphery of the bearing table 201. The product to be stuck with melara is placed on the surface of the positioning middle frame 300 except the cavity 301, and the surface of the product to be stuck with melara faces the bearing table 201. The elastic member of the utility model is a spring (not shown), but is not limited to this, other elastic members that can provide vertical elastic support and drive the positioning middle frame 300 to reset can also be used.

[0040] When the elastic member is in a non-compressed state, the upper surface of each periphery of the cavity 301 is higher than the upper surface of the bearing table 201, and the bottom surface of each periphery of the cavity 301 is lower than the upper surface of the bearing table 201, so that when the Mylar is placed on the bearing table 201, the inner side wall of each periphery of the cavity 301 gives a blocking force to one side of the outer periphery of the Mylar, thereby preventing the Mylar from being displaced when being pressed to be attached to the product.

[0041] Further, to prevent the positioning middle frame 300 from falling off the guide column 501, the top end of each guide column 501 is further provided with a nut 502.

[0042] Further, the positioning middle frame 300 is further provided with a plurality of protruding parts 302, which can be used for positioning the product and avoiding the parts of the product. The specific size and number of the protruding parts 302 are set according to the specific product and are not particularly limited.

[0043] To avoid uneven manual pressing force, which may cause the Mylar to bubble on the touch panel surface or the product to be pressed too hard when the Mylar is pressed by the air cylinder, the base 100 is connected with a pressing assembly 400.

[0044] The base 100 is fixedly connected with a vertical plate 102, and the vertical plate is provided with two adjusting grooves 103 in the vertical direction, and the two adjusting grooves 103 are jointly and detachably connected with the pressing assembly 400.

[0045] The pressing assembly 400 includes a fixed block 401, a connecting rod mechanism 402, a pressing module 403, and a pressing block connecting rod 404. The connecting rod mechanism 402 includes a sleeve seat 4021, a crank rod 4022, and a connecting rod 4023. The sleeve seat 4021 is provided with a sleeve at the bottom end, and the end of the crank rod 4022 is hinged to the upper end of the sleeve. One end of the pressing block connecting rod 404 is fixedly connected with the pressing module 403 in the vertical direction, and the other end passes through the sleeve and is hinged to one end of the connecting rod 4023. The other end of the connecting rod 4023 is hinged to the middle part of the crank rod 4022. One side surface of the sleeve seat 4021 is fixedly connected to the fixed block 401, and the fixed block 401 is detachably connected to the two adjusting grooves 103 through a screw and nut part (not shown). When the crank rod 4022 is pressed downward, the pressing block connecting rod 404 slides downward along the sleeve, thereby driving the pressing module 403 to move downward to the surface of the bearing table 201 and the positioning middle frame 300, and pressing and attaching the product and the Mylar together. When the crank rod 4022 is pulled upward, the pressing block connecting rod 404 slides upward along the sleeve, thereby driving the pressing module 403 to move upward away from the surface of the bearing table 201 and the positioning middle frame 300.

[0046] In actual production, the height of the pressing module 403 when descending can be adjusted by adjusting the position of the fixed block 401 in the adjusting groove 103, so as to adjust the pressure applied to the surface of the bearing table 201 and the positioning middle frame 300, thereby selecting an appropriate pressing pressure to ensure that the Mylar and the product are closely attached without damaging the product due to excessive pressure.

[0047] Further, the downward pressing module 403 comprises a panel 4031 and a plurality of downward pressing blocks 4032. The pressing block connecting rod 404 is fixedly connected to the upper surface of the panel 4031, and the plurality of downward pressing blocks 4032 are fixedly connected to the bottom surface of the panel 4031 in a spaced manner and face the bearing table 201. In the utility model, four downward pressing blocks 4032 are arranged, the four downward pressing blocks 4032 are fixedly connected to the bottom surface of the panel 4031 in a rectangular array in a spaced manner, and an avoiding space matched with the avoiding table 202 is arranged in the inner circle surrounded by the four downward pressing blocks 4032, and the size of the region spaced from each other of the four downward pressing blocks 4032 is also set according to the actual product shape, so that the parts on the product are avoided, and a plurality of avoiding grooves 4033 are arranged on the bottom surface of each downward pressing block 4032, so that the parts on the product are avoided.

[0048] As preferred, in order to stabilize the upward and downward movement of the downward pressing module 403, two straight guide rods 104 are arranged on the base 100 in the vertical direction, and the two straight guide rods 104 are arranged on the two sides of the vertical plate 102. The side of the panel 4031 facing the vertical plate 102 is provided with an avoiding groove matched with the vertical plate 102, and two through holes are arranged on the two sides of the avoiding groove, and the two straight guide rods 104 are respectively sleeved in the corresponding through holes.

[0049] The movement process of the utility model is as follows:

[0050] The Mylar is placed on the surface of the bearing table 201 except the avoiding table 202, the product is placed on the surface of the positioning middle frame 300 except the cavity 301, and the surface of the product needing to be attached to the Mylar covers the Mylar, the crank rod 4022 is pressed downward, the four downward pressing blocks 4032 are also synchronously moved downward, and each downward pressing block 4032 is synchronously pressed downward to the surface of the positioning middle frame 300, at the same time, each elastic piece is pressed downward under the action of force, and the positioning middle frame 300 is pressed downward to be flush with the bearing table 201, under the continuous pressure action of the downward pressing block 4032, the Mylar is attached to the product, the crank rod 4022 is pulled upward, each downward pressing block 4032 is synchronously lifted, and the positioning middle frame 300 and the bearing table 201 are separated from the surface, at the same time, the positioning middle frame 300 is reset under the action of the elastic piece, and the action of attaching the Mylar to the product is completed.

[0051] The above only describes the preferred embodiments of the utility model, and is not used for limiting the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, a plurality of improvements and modifications can be made without departing from the technical principles of the utility model, and the improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. A jig for applying a Mylar, characterized by, The base (100) is provided with a carrier plate (200) on the top surface of the base (100), and the carrier plate (200) is provided with a bearing table (201) and a relief table (202) on the bearing table (201). The carrier plate (200) is provided with a guide elastic element on the outer periphery of the bearing table (201), and the guide elastic element is vertically slidably connected with a positioning middle frame (300), the positioning middle frame (300) is provided with a cavity (301), and the bearing table (201) is located in the cavity (301), and the positioning middle frame (300) can be close to or away from the upper surface of the carrier plate (200) along the guide elastic element. The base (100) is connected with a pressing assembly (400), and the pressing assembly (400) is located above the positioning middle frame (300), and the pressing assembly (400) can be close to or away from the surface of the bearing table (201).

2. The jig for attaching Mylar according to claim 1, wherein The inner side wall of each periphery of the cavity (301) is adjacent to the corresponding outer periphery of the bearing table (201).

3. The jig for attaching Mylar according to claim 1, wherein The base (100) is provided with a base groove (101), and the size of the base groove (101) is suitable for the carrier plate (200), and the carrier plate (200) is arranged in the base groove (101).

4. The jig for attaching Mylar according to claim 1, wherein The guide elastic element comprises a plurality of guide columns (501) and a plurality of elastic elements. The bottom end of each elastic element is connected to the surface of the carrier plate (200), the bottom end of each guide column (501) is fixedly connected to the surface of the carrier plate (200), the top ends of all guide columns (501) are collectively arranged through the positioning middle frame (300), and the bottom surface of the positioning middle frame (300) abuts against the top end of each elastic element. When the elastic element is in a non-compressed state, the upper surface of the bearing table (201) is lower than the upper surface of the positioning middle frame (300), and higher than the bottom surface of the positioning middle frame (300).

5. The tool for applying Mylar according to claim 1, wherein The positioning middle frame (300) is provided with a plurality of protrusions (302) on the upper surface.

6. The tool for applying Mylar according to claim 1, wherein The base (100) is fixedly connected with a vertical plate (102), the vertical plate (102) is provided with an adjusting groove (103) in the vertical direction, and the pressing assembly (400) is detachably connected to the adjusting groove (103).

7. The tool for applying Mylar according to claim 6, wherein The pressing assembly (400) comprises a fixed block (401), a connecting rod mechanism (402) and a pressing module (403), and the pressing module (403) is fixedly connected with a pressing block connecting rod (404) on the upper surface. The fixed block (401) is detachably connected to the adjusting groove (103), one end of the connecting rod mechanism (402) is fixedly connected to the fixed block (401), and the other end is slidably connected to the pressing block connecting rod (404), the bottom surface of the pressing module (403) is provided with a relief space suitable for the relief table (202), and the connecting rod mechanism (402) drives the pressing module (403) to be close to or away from the surface of the bearing table (201) in the vertical direction.

8. The jig for applying Mylar according to claim 7, wherein The connecting rod mechanism (402) comprises a sleeve seat (4021), a crank rod (4022) and a connecting rod (4023). The sleeve seat (4021) is provided with a sleeve at the bottom end, and the upper end of the sleeve is hinged to the end of a crank rod (4022). The upper end of the pressing block connecting rod (404) is hinged to one end of a connecting rod (4023) through the sleeve. The other end of the connecting rod (4023) is hinged to the middle part of the crank rod (4022).

9. The jig for applying Mylar according to claim 7, wherein Two vertical linear guide rods (104) are arranged on the base (100) in the vertical direction, and the two vertical linear guide rods (104) are arranged on the two sides of the vertical plate (102). Two through holes are arranged on the side of the pressing module (403) close to the vertical plate (102) at intervals, and the two vertical linear guide rods (104) are respectively sleeved in the corresponding through holes.

Images