Back glue precise laminating auxiliary device

Abstract

The utility model discloses a back glue precise fitting auxiliary device which comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die plate, a plurality of product positioning blocks are arranged on the peripheral side of a product placing area of the upper die plate, and an upper die through hole is formed in the product placing area of the upper die plate; the lower die assembly comprises a lower die plate and a gum placing die core arranged on the upper surface of the lower die plate, and a plurality of gum positioning columns are arranged on the upper surface of the gum placing die core. A negative pressure cavity is formed between the lower mold plate and the gum placing mold core, a plurality of mold core negative pressure holes are formed in the upper surface of the gum placing mold core, and a lateral air hole which is opened outwards and is communicated with the negative pressure cavity is formed in the lower mold plate or the gum placing mold core; a guide rail sliding block pair and a guide column and guide sleeve pair are arranged between the upper die plate and the lower die plate. By means of the structural design, the precise back adhesive attaching auxiliary device has the advantages of being novel in structural design, high in back adhesive attaching precision and good in stability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of jig device technology, and in particular to an adhesive precision bonding auxiliary device. Background Technology

[0002] Chinese utility model patent with patent number ZL202322328791.8 and patent name: "An Adhesive-Backed Adhesive Positioning Fixture", specifically discloses the following technical solution: An adhesive-backed adhesive positioning fixture includes an upper template and a lower template movably connected to the upper template. Several guide posts are provided around the upper surface of the lower template. Several guide holes are provided on the upper template corresponding to the guide posts. The guide posts are movably disposed within the guide holes. Each guide post is fitted with a return spring, and the two ends of the return spring abut against the upper template and the lower template respectively. The lower template includes several product positioning mechanisms and positioning pins. The product positioning mechanisms are located around the upper surface of the upper template, and the positioning pins are located on the upper surface of the upper template. The lower template also includes an auxiliary material positioning mechanism located on the upper surface of the lower template. The upper template has a first through hole corresponding to the auxiliary material positioning mechanism. The auxiliary material positioning mechanism is movably located in the first through hole, and the positioning pins are located on one side of the first through hole. The auxiliary material positioning mechanism includes a base and several positioning pins. The base is located on the upper surface of the lower template, and the several positioning pins are located on the upper surface of the base.

[0003] When the aforementioned adhesive bonding positioning fixture is used to bond adhesive materials to the product, firstly, the positioning holes on the adhesive material are aligned with the positioning pins. Then, the adhesive material is placed on the base, and the positioning pins, passing through the positioning holes, cooperate to position the adhesive material. Next, the product is placed in the positioning area of ​​the upper template, with the back of the product facing upwards and the four sides of the product abutting against several product positioning mechanisms to position the product. Then, the product is pressed down, the return springs are compressed, and the upper template and the product move downwards. The adhesive material positioning mechanism passes through the first through hole, and the adhesive material on the positioning mechanism abuts against the product, adhering to the inner surface of the product. Finally, the pressing of the product stops, the return springs return to their original positions, and the product and the upper template return to their initial positions.

[0004] It should be noted that the above-mentioned adhesive bonding and positioning fixture has the following defects, specifically:

[0005] Defect 1: The adhesive backing material is positioned on the upper surface of the base by positioning pins. Since the adhesive backing material is a flexible structure, when the product is pressed down and the product and the upper template are moved down, the adhesive backing material may flip up or become uneven. This will result in unqualified adhesive backing bonding, that is, there is a problem of poor adhesive backing bonding stability and reliability and poor adhesive backing bonding accuracy.

[0006] Defect 2: The upper template moves up and down relative to the lower template only through guide posts and guide holes. This guide structure design has the defect of low guiding accuracy, which is not conducive to achieving precise adhesive bonding. Utility Model Content

[0007] The purpose of this utility model is to provide an adhesive precision bonding auxiliary device to address the shortcomings of the existing technology. This adhesive precision bonding auxiliary device has a novel structural design, high adhesive bonding accuracy, and good stability and reliability.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0009] A precision adhesive bonding auxiliary device includes an upper mold assembly and a lower mold assembly located below the upper mold assembly;

[0010] The upper mold assembly includes an upper template, the upper surface of which is provided with a product placement area, and a number of spaced product positioning blocks are installed on the upper surface of the upper template around the product placement area. The upper template has a vertical through hole in the product placement area.

[0011] The lower mold assembly includes a lower mold plate, a backing adhesive placement mold core mounted on the upper surface of the lower mold plate, several return springs are installed between the lower mold plate and the upper mold plate, the backing adhesive placement mold core is vertically aligned with the upper mold through hole of the upper mold plate, and several backing adhesive positioning posts are installed on the upper surface of the backing adhesive placement mold core at intervals.

[0012] A negative pressure chamber is formed between the lower template and the adhesive placement mold core. The upper surface of the adhesive placement mold core has several mold core negative pressure holes arranged in an array and connected to the negative pressure chamber. The lower template or the adhesive placement mold core has lateral air holes that open outward and are connected to the negative pressure chamber.

[0013] A guide rail slider pair and a guide post and guide sleeve pair are installed between the upper template and the lower template. The guide post and guide sleeve pair includes four guide sleeves that are rectangularly distributed and fastened to the lower template. The upper template is fastened with guide posts arranged vertically to each guide sleeve. The lower end of each guide post is inserted into the center hole of the corresponding guide sleeve. Each guide post is fitted with a return spring. The upper end of each return spring abuts against the upper template, and the lower end of each return spring abuts against the upper end of the corresponding guide sleeve.

[0014] The guide rail slider pair includes two sliders, which are fastened to the left and right ends of the lower template.

[0015] The upper template is equipped with vertically arranged guide rails for each slider, and each guide rail cooperates with the slider on the corresponding side.

[0016] A sealing ring is fitted between the adhesive backing mold core and the lower mold plate, surrounding the negative pressure chamber.

[0017] The lower template has a vertically penetrating screw mounting hole in the shape of a stepped hole. A limit screw is embedded in the screw mounting hole, and the upper end of the limit screw is screwed to the upper template.

[0018] When the upper template moves to the upper limit position relative to the lower template, the large end of the limit screw abuts against the inner wall of the limit screw mounting hole.

[0019] The lower template has a vertically penetrating internal threaded hole, and a height limiting screw is threaded into the internal threaded hole of the lower template. The upper end of the height limiting screw extends to the top of the lower template.

[0020] When the upper template moves down to the lower limit position relative to the lower template, the upper template abuts against the upper surface of the height limiting screw.

[0021] The lower surface of the lower template is equipped with several spaced-apart foot pads.

[0022] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0023] 1. When the adhesive backing material is positioned on the upper surface of the product placement mold core, this utility model fixes the adhesive backing material through negative pressure to ensure that the adhesive backing material will not flip or become uneven during the bonding operation. This can effectively improve the quality of adhesive bonding, and the adhesive bonding is stable, reliable and accurate.

[0024] 2. When the product is pressed down and the product and the upper template move down synchronously, this utility model uses the guide post and guide sleeve pair and the guide rail slider pair to guide the upper template. The above-mentioned combined guide structure can effectively improve the movement accuracy of the upper template and the product, thereby effectively improving the precision of the adhesive bonding.

[0025] 3. Therefore, the adhesive backing precision bonding auxiliary device of this utility model has the advantages of novel structural design, high adhesive backing bonding accuracy and good stability and reliability. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0029] Figure 3 This is a cross-sectional view of another location of the present invention.

[0030] Figure 4 This is an exploded view of the present invention during the bonding action.

[0031] exist Figures 1 to 4 This includes:

[0032] 1-Upper mold assembly; 11-Upper template; 12-Product positioning block; 13-Upper mold through hole; 2-Lower mold assembly; 21-Lower template; 211-Screw mounting hole; 212-Internal thread hole; 22-Adhesive backing mold core placement; 23-Adhesive backing positioning post; 241-Negative pressure chamber; 242-Mold core negative pressure hole; 243-Side air hole; 25-Sealing ring; 3-Reset spring; 41-Guide sleeve; 42-Guide post; 51-Slider; 52-Guide rail; 6-Limit screw; 7-Height limit screw; 8-Foot pad; 9-Processed product; 10-Adhesive backing auxiliary material; 101-Adhesive backing positioning hole. Detailed Implementation

[0033] The present invention will now be described in conjunction with specific embodiments.

[0034] Example 1, as Figures 1 to 4 As shown, a precision adhesive bonding auxiliary device includes an upper mold assembly 1 and a lower mold assembly 2 located below the upper mold assembly 1.

[0035] Among them, such as Figures 1 to 4 As shown, the upper mold assembly 1 includes an upper template 11, the upper surface of which is provided with a product placement area, and a number of spaced product positioning blocks 12 are installed on the upper surface of the upper template 11 around the product placement area. The upper template 11 has a vertical through hole 13 in the product placement area.

[0036] Furthermore, such as Figures 1 to 4 As shown, the lower mold assembly 2 includes a lower template 21 and a backing adhesive placement mold core 22 mounted on the upper surface of the lower template 21. Several return springs 3 are installed between the lower template 21 and the upper template 11. The backing adhesive placement mold core 22 is vertically aligned with the upper mold through hole 13 of the upper template 11. Several backing adhesive positioning posts 23 are arranged at intervals on the upper surface of the backing adhesive placement mold core 22.

[0037] Furthermore, such as Figure 1 , Figure 2 as well as Figure 4As shown, a negative pressure chamber 241 is formed between the lower template 21 and the adhesive placement mold core 22. The upper surface of the adhesive placement mold core 22 is provided with a plurality of mold core negative pressure holes 242 arranged in an array and communicating with the negative pressure chamber 241 respectively. The lower template 21 or the adhesive placement mold core 22 is provided with lateral air holes 243 that open outward and communicate with the negative pressure chamber 241.

[0038] In addition, such as Figures 1 to 4 As shown, a guide rail slider pair and a guide post and guide sleeve pair are installed between the upper template 11 and the lower template 21. The guide post and guide sleeve pair includes four guide sleeves 41 that are rectangularly distributed and fastened to the lower template 21. The upper template 11 is fastened to each guide sleeve 41 with a vertically arranged guide post 42. The lower end of each guide post 42 is inserted into the center hole of the corresponding guide sleeve 41. Each guide post 42 is fitted with a reset spring 3. The upper end of each reset spring 3 abuts against the upper template 11, and the lower end of each reset spring 3 abuts against the upper end of the corresponding guide sleeve 41.

[0039] Specifically, the guide rail slider pair includes two sliders 51, which are fastened to the left and right ends of the lower template 21; the upper template 11 is fastened with vertically arranged guide rails 52 corresponding to each slider 51, and each guide rail 52 cooperates with the slider 51 on the corresponding side.

[0040] It should be explained that a connector is installed at the outer end opening of the lateral air hole 243 in this embodiment, and the connector is connected to the negative pressure device.

[0041] In the process of bonding product 9 and adhesive material 10 using the precision adhesive bonding auxiliary device of this embodiment, the adhesive material 10 is first placed on the upper surface of the adhesive placement mold core 22, and the adhesive positioning holes 101 of the adhesive material 10 are aligned and inserted into the corresponding adhesive positioning posts 23. That is, the adhesive material 10 is positioned by a number of adhesive positioning posts 23, so that the adhesive material 10 is accurately positioned on the upper surface of the adhesive placement mold core 22. Then, the negative pressure device is activated, and the negative pressure device evacuates the negative pressure chamber 241 between the lower template 21 and the adhesive placement mold core 22 through the side air holes 243. At this time, the negative pressure holes 242 of each mold core of the product placement mold core produce air. A negative pressure is generated to adsorb and fix the adhesive backing material 10, so that the adhesive backing material 10 is flatly fixed on the upper surface of the product placement mold core; then the processed product 9 is placed in the product placement area of ​​the upper template 11. At this time, the processed product 9 is positioned by multiple product positioning blocks 12 to ensure that the processed product 9 is accurately placed in the product placement area of ​​the upper template 11; finally, the processed product 9 is pressed down, at which time the processed product 9 and the upper template 11 move down synchronously until the processed product 9 is pressed tightly against the adhesive backing material 10 on the upper surface of the product placement mold core. After the adhesion is completed, the pressing of the processed product 9 is stopped, and the return spring 3 causes the upper template 11 and the processed product 9 to move up and return to the initial position.

[0042] It should be noted that before the processed product 9 and the adhesive backing material 10 are fully bonded, the negative pressure device remains in working condition and keeps the negative pressure chamber 241 under negative pressure; after the processed product 9 and the adhesive backing material 10 are bonded, the negative pressure device stops working or the negative pressure device is in reverse inflation state, and the negative pressure chamber 241 returns to normal pressure state so that the adhesive backing material 10 can be removed from the product and placed in the mold core when the processed product 9 moves upward.

[0043] It should be emphasized that when the adhesive backing material 10 is positioned on the upper surface of the product placement mold core, the adhesive backing precision bonding auxiliary device in this embodiment fixes the adhesive backing material 10 through negative pressure to ensure that the adhesive backing material 10 will not flip or be uneven during the bonding operation. This can effectively improve the quality of adhesive backing bonding, and the adhesive backing bonding is stable, reliable and accurate.

[0044] It should be further emphasized that when the product 9 is pressed down and the product 9 and the upper template 11 move down synchronously, the upper template 11 is guided by the guide post and guide sleeve pair and the guide rail slider pair. The above-mentioned combined guide structure can effectively improve the moving accuracy of the upper template 11 and the product 9, thereby effectively improving the precision of the adhesive bonding.

[0045] In summary, the adhesive backing precision bonding auxiliary device of this embodiment has the advantages of novel structural design, high adhesive backing bonding accuracy, and good stability and reliability through the above structural design.

[0046] Example 2, as Figure 2 As shown, the difference between this embodiment 2 and embodiment 1 is that a sealing ring 25 is fitted between the adhesive backing mold core 22 and the lower mold plate 21 and surrounds the negative pressure chamber 241.

[0047] When the negative pressure is generated by the negative pressure device and the adhesive material 10 on the upper surface of the product placement mold core is adsorbed and fixed, the sealing ring 25 can effectively ensure the airtightness of the connection between the lower template 21 and the product placement mold core.

[0048] Example 3, as Figure 1 , Figure 3 as well as Figure 4 As shown, the difference between this embodiment 3 and embodiment 1 is that: the lower template 21 has a vertical through screw mounting hole 211 in the shape of a stepped hole, and a limit screw 6 is embedded in the screw mounting hole 211. The upper end of the limit screw 6 is screwed to the upper template 11.

[0049] It should be noted that when the upper template 11 moves to the upper limit position relative to the lower template 21, the large end of the limiting screw 6 abuts against the inner wall of the limiting screw mounting hole 211, thereby preventing the upper template 11 from falling off.

[0050] Example 4, as Figure 1 , Figure 3 as well as Figure 4 As shown, the difference between this embodiment 4 and embodiment 1 is that: the lower template 21 has a vertically penetrating internal threaded hole 212, and a height limiting screw 7 is screwed into the internal threaded hole 212 of the lower template 21. The upper end of the height limiting screw 7 extends to the top of the lower template 21.

[0051] It should be noted that when the upper template 11 moves down to the lower limit position relative to the lower template 21, the upper template 11 abuts against the upper surface of the limit screw 7 to avoid the upper template 11 moving down too much and causing the adhesive material 10 to be squeezed and damaged.

[0052] Example 5, as Figures 1 to 4 As shown, the difference between this fifth embodiment and the first embodiment is that the lower surface of the lower template 21 is equipped with a number of spaced foot pads 8.

[0053] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A precision adhesive bonding auxiliary device, comprising an upper mold assembly (1) and a lower mold assembly (2) located below the upper mold assembly (1). The upper mold assembly (1) includes an upper mold plate (11), the upper surface of the upper mold plate (11) is provided with a product placement area, a number of spaced product positioning blocks (12) are installed on the upper surface of the upper mold plate (11) around the product placement area, and the upper mold plate (11) has a vertical through hole (13) in the product placement area. The lower mold assembly (2) includes a lower template (21) and a backing adhesive placement mold core (22) installed on the upper surface of the lower template (21). Several return springs (3) are installed between the lower template (21) and the upper template (11). The backing adhesive placement mold core (22) is vertically aligned with the upper mold through hole (13) of the upper template (11). Several backing adhesive positioning posts (23) are installed on the upper surface of the backing adhesive placement mold core (22). Its features are: A negative pressure chamber (241) is formed between the lower template (21) and the adhesive placement mold core (22). The upper surface of the adhesive placement mold core (22) is provided with a number of mold core negative pressure holes (242) arranged in an array and communicating with the negative pressure chamber (241). The lower template (21) or the adhesive placement mold core (22) is provided with lateral air holes (243) that open outward and communicate with the negative pressure chamber (241). A guide rail slider pair and a guide post guide sleeve pair are installed between the upper template (11) and the lower template (21). The guide post guide sleeve pair includes four guide sleeves (41) that are rectangularly distributed and respectively fastened to the lower template (21). The upper template (11) is fastened to each guide sleeve (41) with a vertically arranged guide post (42). The lower end of each guide post (42) is inserted into the center hole of the corresponding guide sleeve (41). Each guide post (42) is fitted with a reset spring (3). The upper end of each reset spring (3) abuts against the upper template (11), and the lower end of each reset spring (3) abuts against the upper end of the corresponding guide sleeve (41).

2. The adhesive precision bonding auxiliary device according to claim 1, characterized in that: The guide rail slider pair includes two sliders (51), which are fastened to the left and right ends of the lower template (21); The upper template (11) is fastened with vertically arranged guide rails (52) for each slider (51), and each guide rail (52) cooperates with the slider (51) on the corresponding side.

3. The adhesive precision bonding auxiliary device according to claim 1, characterized in that: A sealing ring (25) is fitted between the adhesive backing placement mold core (22) and the lower template (21) and surrounds the negative pressure chamber (241).

4. The adhesive precision bonding auxiliary device according to claim 1, characterized in that: The lower template (21) has a vertical through screw mounting hole (211) in the shape of a stepped hole. A limit screw (6) is embedded in the screw mounting hole (211), and the upper end of the limit screw (6) is screwed to the upper template (11). When the upper template (11) moves to the upper limit position relative to the lower template (21), the large end of the limiting screw (6) abuts against the inner wall of the limiting screw mounting hole (211).

5. The adhesive precision bonding auxiliary device according to claim 1, characterized in that: The lower template (21) has a vertical through internal threaded hole (212), and a height limiting screw (7) is screwed into the internal threaded hole (212) of the lower template (21). The upper end of the height limiting screw (7) extends to the top of the lower template (21). When the upper template (11) moves down to the lower limit position relative to the lower template (21), the upper template (11) abuts against the upper surface of the limit screw (7).

6. The adhesive precision bonding auxiliary device according to claim 1, characterized in that: The lower surface of the lower template (21) is equipped with a number of spaced foot pads (8).

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