Vacuum pressing jig

Abstract

The utility model relates to the technical field of vacuum pressing equipment, and discloses a vacuum pressing jig which comprises an upper pressing plate and a lower pressing plate. An air bag is arranged on the lower surface of the upper pressing plate, vacuum sealing rings are arranged on the lower surface and the upper surface of the upper pressing plate, and the air bag is arranged on the inner side of the vacuum sealing ring of the upper pressing plate. The upper pressing plate is internally provided with an inflation channel used for inflating the air bag and an exhaust channel used for exhausting the air bag. And when the upper pressing plate is pressed on the lower pressing plate, the two vacuum sealing rings are aligned. Extending parts are arranged at the two ends of the product contact face of the air bag in the length direction of the product, and the extending parts are flush with the product contact face. According to the vacuum pressing jig, the probability of wrinkles of continuous products in the pressing process can be reduced, and the quality of the products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum compression equipment technical field, specifically relates to a vacuum compression fixture. BACKGROUND

[0002] In the production and manufacturing process of circuit board, flexible circuit board and lithium battery pole piece, vacuum hot pressing is often needed for the product. The existing vacuum compression fixture is designed for sheet products, and when used for vacuum hot pressing of continuous roll material products, it often causes the product to wrinkle and leaves pressure marks on the product, reducing the yield of the product. Therefore, a new vacuum compression fixture needs to be designed to solve the above technical problems. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a vacuum compression fixture which can avoid the continuous product from wrinkling during the inflation process of the air bag and improve the yield of the product.

[0004] To solve the above problems, the technical scheme adopted by the utility model is as follows: a vacuum compression fixture, comprising an upper pressing plate and a lower pressing plate, an air bag is arranged on the lower surface of the upper pressing plate, a vacuum sealing ring is arranged on the lower surface of the upper pressing plate and the upper surface of the upper pressing plate, the air bag is arranged on the inner side of the vacuum sealing ring of the upper pressing plate, an inflation passage for inflating the air bag and an exhaust passage for exhausting the air bag are arranged in the upper pressing plate, the two vacuum sealing rings are aligned when the upper pressing plate is pressed on the lower pressing plate, and the product contact surface of the air bag is provided with an extension part at both ends in the length direction of the product.

[0005] Compared with the prior art, the vacuum compression fixture has the beneficial effects that: after the upper pressing plate and the lower pressing plate are pressed on the continuous product, the vacuum sealing ring and the surface of the product abut to form a cavity, and then the air bag inflates to expel the air in the cavity to achieve a certain vacuum degree in the fixture. During the inflation process of the air bag, the connection between the product inside the fixture and the product outside the fixture is pressed by the extension part on the air bag, so that the connection can be prevented from wrinkling under the action of the extrusion force during the inflation process of the air bag, thereby improving the yield of the product.

[0006] The vacuum compression fixture described above, the lower surface of the upper pressing plate is provided with a mounting groove, the air bag is embedded in the mounting groove, and the two ends of the mounting groove in the length direction are provided with a avoiding slot for avoiding the extension part.

[0007] In the aforementioned vacuum pressing fixture, the lower surface of the upper pressure plate or the upper surface of the upper pressure plate is provided with gaskets on both sides in the width direction. The gaskets are used to create a certain gap between the lower surface of the upper pressure plate and the upper surface of the lower pressure plate when the upper pressure plate is pressed onto the lower pressure plate.

[0008] In the aforementioned vacuum pressing fixture, the cross-section of the vacuum sealing ring is a horizontal V-shape, and a horizontal pressing surface is provided on the side of the vacuum sealing ring facing the product.

[0009] In the aforementioned vacuum pressing fixture, an airbag mounting plate is detachably provided in the mounting groove. The airbag is sleeved on the lower surface of the airbag mounting plate. The airbag mounting plate is provided with a through inflation hole and an exhaust hole. The airbag is connected to the inflation passage and the exhaust passage through the inflation hole and the exhaust hole, respectively.

[0010] The vacuum pressing fixture described above has two inflation / exhaust sealing grooves on the back side of the airbag mounting plate for installing inflation / exhaust sealing rings. The two inflation / exhaust sealing grooves are respectively located on the outer side of the end of the inflation through hole and the exhaust through hole facing the upper pressure plate.

[0011] In the aforementioned vacuum pressing fixture, the inner side of the airbag's sleeve interface is provided with a flange, and the back edge of the airbag mounting plate is provided with a groove that matches the shape of the flange. When the airbag is sleeved on the mounting plate, the flange can be embedded in the groove.

[0012] In the aforementioned vacuum pressing fixture, a vacuum sealing groove is provided on the lower surface of the upper pressure plate and the upper surface of the lower pressure plate. A sealing pressure plate is detachably provided on the outer side of the vacuum sealing groove, and the side of the vacuum sealing ring closest to the upper pressure plate or the lower pressure plate is pressed into the vacuum sealing groove by the sealing pressure plate.

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a side view of the vacuum pressing fixture according to an embodiment of the present invention;

[0015] Figure 2 This is a bottom view of the upper pressure plate in an embodiment of the present utility model;

[0016] Figure 3 This is a cross-sectional view of the upper pressure plate according to an embodiment of the present utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 For Figure 3 Enlarged view at B;

[0019] Figure 6 For the side view of the air bag of the utility model embodiment;

[0020] Figure 7 For the bottom view of the main body of the upper pressing plate of the utility model embodiment;

[0021] Figure 8 For the top view of the lower pressing plate of the utility model embodiment.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 100 upper pressing plate, 101 inflation passage, 102 exhaust passage, 103 mounting groove, 110 air bag, 120 air bag mounting plate, 121 inflation through hole, 122 exhaust through hole, 130 inflation and exhaust sealing ring, 111 extension part, 200 lower pressing plate, 210 gasket, 300 vacuum sealing ring, 310 sealing pressing plate. DETAILED DESCRIPTION

[0024] The embodiments of the utility model will be described in detail below, with reference to Figures 1 to 6 The embodiments of the utility model provide a kind of vacuum pressing jig, including upper pressing plate 100 and lower pressing plate 200, the lower surface of upper pressing plate 100 is equipped with air bag 110, upper pressing plate 100 is provided with the inflation passage 101 for being inflated for air bag 110 in it, and the exhaust passage 102 for being exhausted for air bag 110.Upper pressing plate 100 and the upper surface of lower pressing plate 200 are all provided with vacuum sealing ring 300, air bag 110 is arranged in the inner side of vacuum sealing ring 300 on upper pressing plate 100, when upper pressing plate 100 is pressed and combined on lower pressing plate 200, the vacuum sealing ring 300 of upper pressing plate 100 is aligned with the vacuum sealing ring 300 on lower pressing plate 200.Gas bag 110 product contact surface is provided with extension part 111 in the length direction of product both ends, and extension part 111 is flush with product contact surface.

[0025] The vacuum compression jig, after the upper pressing plate 100 and the lower pressing plate 200 are compressed on the continuous product, the two vacuum sealing rings 300 are in contact with the upper and lower surfaces of the product respectively, so that a cavity is formed between the product and the upper pressing plate 100 and the lower pressing plate 200 respectively. Subsequently, the air bag 110 is inflated, so that the air bag 110 is inflated to extrude the gas in the sealed space through the contact between the vacuum sealing ring 300 and the product, so that the vacuum degree of the upper and lower surfaces of the product in the jig reaches a certain value, so that the vacuum compression of the product is realized, so as to avoid the oxidation of the product in the process of hot compression. Since only part of the continuous product is located in the jig, the air bag 110 may exert an extrusion force outwardly on the product in the jig during the inflation process, so that wrinkles occur at the connection between the products inside and outside the jig, affecting the quality of the product. To solve the technical problem, the product contact surface of the air bag 110 is provided with an extension part 111 at both ends in the length direction of the product, and during the inflation process of the air bag 110, the extension part 111 is pressed on the connection between the products inside and outside the jig, so as to avoid wrinkles at the connection during the inflation process of the air bag 110, and improve the quality of the product.

[0026] Referring to Figure 2 and Figure 7 The lower surface of the upper pressing plate 100 is provided with a mounting groove 103, and the air bag 110 is embedded in the mounting groove 103. The two ends of the length direction of the mounting groove 103 are provided with a avoiding groove for avoiding the extension part 111. It can be understood that the size of the avoiding groove should be slightly wider than the size of the extension part 111 of the air bag 110 after inflation, so as to avoid the extension part 111 being stuck in the avoiding groove after thermal expansion, resulting in the air bag 110 being unable to recover after compression.

[0027] Referring to Figure 3 and Figure 5 In this embodiment, the air bag 110 is installed on the lower surface of the upper pressing plate 100 through the air bag mounting plate 120, the air bag 110 is sleeved on the lower surface of the air bag mounting plate 120, and the back surface of the air bag mounting plate 120 is locked in the mounting groove 103 of the upper pressing plate 100 through bolts, so as to realize the installation of the air bag 110. The air bag mounting plate 120 is provided with a through inflation through hole 121 and a through exhaust through hole 122, and the air bag 110 is in communication with the inflation passage 101 and the exhaust passage 102 in the upper pressing plate 100 through the inflation through hole 121 and the exhaust through hole 122 respectively. The outer side of one end of the inflation through hole 121 and the exhaust through hole 122 towards the upper pressing plate 100 is provided with a inflation and exhaust sealing ring 130, so as to prevent the gap between the air bag mounting plate 120 and the upper pressing plate 100 from affecting the air tightness of the air bag 110. The outer side of the upper end of the inflation through hole 121 and the exhaust through hole 122 is provided with a inflation and exhaust sealing groove for accommodating the inflation and exhaust sealing ring 130. Referring to Figure 3In the embodiment, the inflation passage 101 is used to connect the inflation interface of the inflation device, and the exhaust passage 102 is used to connect the exhaust interface of the exhaust device, which are arranged on the side of the upper pressing plate 100, so as to facilitate the connection of the inflation device and the exhaust device. It can be understood that the vacuum sealing ring 300 and the air bag 110 are made of rubber or silica gel and other materials with certain deformation capacity. The size of the air bag 110 when not inflated is slightly smaller than the air bag mounting plate 120, so that when the air bag 110 is sleeved on the air bag mounting plate 120, the edge of the air bag 110 is tightly fitted with the air bag mounting plate 120, and the air tightness of the air bag 110 is ensured. Referring to Figure 5 , the inner side of the sleeve interface of the air bag 110 is provided with a flange, and the edge of the back side of the air bag mounting plate 120 is provided with a groove matched with the shape of the flange. When the air bag 110 is sleeved on the air bag mounting plate 120, the flange can be embedded in the groove, so as to further improve the air tightness of the air bag 110 after installation.

[0028] Referring to Figure 1 and Figure 8 In the embodiment, in order to avoid leaving a pressing mark on the continuous product by the upper pressing plate 100 and the lower pressing plate 200, the lower surface of the upper pressing plate 100 or the upper surface of the lower pressing plate 200 is provided with a gasket 210 on both sides in the width direction. The gasket 210 is used to have a certain gap between the lower surface of the upper pressing plate 100 and the upper surface of the lower pressing plate 200 when the upper pressing plate 100 is pressed on the lower pressing plate 200, so as to avoid the edge part of the upper pressing plate 100 and the lower pressing plate 200 contacting the product during the pressing process, thereby avoiding leaving a pressing mark at the joint of the upper pressing plate 100 and the lower pressing plate 200. In addition, the gasket 210 can also prevent the air bag 110 and the product from being in contact at high temperature in advance, so as to avoid the air bag 110 being heated and quickly warmed when not inflated, which leads to the reduction of the service life of the air bag 110. In the embodiment, two gaskets 210 are arranged on both sides of the upper surface of the lower pressing plate 200 in the width direction.

[0029] Referring to Figure 4In the embodiment, in order to increase the contact area between the vacuum sealing ring 300 and the product, avoid the vacuum sealing ring 300 leaving a pressure mark on the product, and further improve the quality of the product, the cross section of the vacuum sealing ring 300 is horizontally V-shaped, and a horizontal pressing surface is arranged on the side of the vacuum sealing ring 300 facing the product. When the upper pressing plate 100 is pressed on the lower pressing plate 200, the pressing surfaces of the upper and lower vacuum sealing rings 300 are aligned and pressed on the front and back surfaces of the product. Compared with the traditional circular sealing ring, the contact area between the vacuum sealing ring 300 and the surface of the product is increased, so that the pressure mark on the product is avoided, and the quality of the product is improved. At the same time, the cross section of the horizontally V-shaped vacuum sealing ring 300 can make the vacuum sealing ring 300 have a certain longitudinal deformation ability, so that the pressure between the pressing surface and the surface of the product is not too large, and the pressure mark on the surface of the product is avoided.

[0030] Referring to Figure 2 , Figure 4 and Figure 8 , in the embodiment, in order to facilitate the installation of the vacuum sealing ring 300, the lower surface of the upper pressing plate 100 and the upper surface of the lower pressing plate 200 are provided with a vacuum sealing groove for installing the vacuum sealing ring 300, and the outer side of the vacuum sealing groove is provided with a detachable sealing pressing plate 310. The sealing pressing plate 310 presses the side of the vacuum sealing ring 300 close to the upper pressing plate 100 or the lower pressing plate 200 in the vacuum sealing groove, so as to realize the installation of the vacuum sealing ring 300.

[0031] It should be noted that, in the description of the utility model, if there is a direction description, for example, the direction or position relationship indicated by the upper, lower, front, rear, left, right and the like, it is based on the direction or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific direction, be constructed or operated in a specific direction, and cannot be understood as limiting the utility model.

[0032] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two and more than two, greater than, less than, more than and the like are not included in the number, above, below and the like are included in the number. If there is a description of first or second and the like, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0034] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A vacuum pressing jig comprising an upper pressing plate (100) and a lower pressing plate (200), a gas bag (110) is arranged on the lower surface of the upper pressing plate (100), vacuum sealing rings (300) are arranged on the lower surface of the upper pressing plate (100) and the upper surface of the upper pressing plate (100), the gas bag (110) is arranged inside the vacuum sealing rings (300) of the upper pressing plate (100), the upper pressing plate (100) is provided with an inflation passage (101) for inflating the gas bag (110) and an exhaust passage (102) for exhausting the gas bag (110), when the upper pressing plate (100) is pressed on the lower pressing plate (200), the two vacuum sealing rings (300) are aligned, characterized in that, The product-contacting surface of the air bag (110) is provided with an extension (111) at both ends in the length direction of the product, and the extension (111) is flush with the product-contacting surface.

2. The vacuum press tooling fixture of claim 1, wherein, The lower surface of the upper pressing plate (100) is provided with a mounting groove (103), and the air bag (110) is embedded in the mounting groove (103). The mounting groove (103) is provided with an avoidance groove at both ends in the length direction for avoiding the extension (111).

3. The vacuum press tooling fixture of claim 1, wherein, The lower surface of the upper pressing plate (100) or the upper surface of the upper pressing plate (100) is provided with a gasket (210) on both sides in the width direction, which is used to have a certain gap between the lower surface of the upper pressing plate (100) and the upper surface of the lower pressing plate (200) when the upper pressing plate (100) is pressed on the lower pressing plate (200).

4. The vacuum press tooling fixture of claim 1, wherein, The cross section of the vacuum sealing ring (300) is a transverse V shape, and the side of the vacuum sealing ring (300) facing the product is provided with a horizontal crimping surface.

5. The vacuum press tooling fixture of claim 2, wherein, The mounting groove (103) is detachably provided with an air bag mounting plate (120), and the air bag (110) is sleeved on the lower surface of the air bag mounting plate (120). The air bag mounting plate (120) is provided with a through inflation through hole (121) and an exhaust through hole (122), and the air bag (110) communicates with the inflation passage (101) and the exhaust passage (102) through the inflation through hole (121) and the exhaust through hole (122) respectively.

6. The vacuum press tooling fixture of claim 5, wherein, The back side of the air bag mounting plate (120) is provided with two inflation and exhaust sealing grooves for mounting the inflation and exhaust sealing ring (130), and the two inflation and exhaust sealing grooves are respectively provided outside one end of the inflation through hole (121) and the exhaust through hole (122) towards the upper pressing plate (100).

7. The vacuum press tooling fixture of claim 5, wherein, The inside of the sleeve interface of the air bag (110) is provided with a flange, and the edge of the back side of the air bag mounting plate (120) is provided with a groove matched with the shape of the flange. When the air bag (110) is sleeved on the mounting plate, the flange can be embedded in the groove.

8. The vacuum press tooling fixture of claim 1, wherein, The lower surface of the upper pressing plate (100) and the upper surface of the lower pressing plate (200) are both provided with a vacuum sealing groove, and the outer side of the vacuum sealing groove is detachably provided with a sealing pressing plate (310). The side of the vacuum sealing ring (300) close to the upper pressing plate (100) or the lower pressing plate (200) is pressed in the vacuum sealing groove by the sealing pressing plate (310).

Images