CN216300149U - Back-blowing forming device - Google Patents

Abstract

The utility model relates to a back-blowing forming device, which comprises a heating component and a forming die positioned on one side of the heating component, wherein the forming die comprises an upper die, a die core and a lower die, the die core is arranged on the upper die and can move relative to the upper die, the die core is provided with a forming block, the lower die is provided with a forming groove matched with the forming block, and the forming block and the forming groove are both multiple; the lower die is also provided with an air passage, and the forming grooves are communicated with the air passage. The utility model combines the characteristics of various molding processes, fixes the material between the upper die and the lower die, performs film pressing and stretching molding through the matching of the die core and the lower die, and provides a counter-sound pressure for the material in molding by injecting air pressure into the lower die, so that the material is attached to the die core.

Description

Back-blowing forming device

Technical Field

The utility model relates to the field of a back-blowing forming device, in particular to a back-blowing forming device.

Background

The carrier tape is a tape-shaped product applied to the field of electronic packaging, and has a specific thickness, and holes for holding electronic components and positioning holes for index positioning are equidistantly distributed in the length direction of the tape-shaped product. The forming process of the carrier tape in the prior art generally comprises a blow forming process and a hard pressing forming process, wherein the blow forming process is applied to relatively shallow products, most of materials are distributed on the side wall, the bottom is thin, and the blow forming process is not suitable for products with the height of more than 7 mm; the hard pressing forming process is mostly applied to products with higher requirements on product hardness, the bottom of the product is thicker, the side wall of the product is thinner, and the product is not suitable for products with the height of more than 7 mm; in view of the above, it is desirable to design a carrier tape forming apparatus that is stable, has a good forming effect, and is suitable for a relatively high height.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a blowback molding apparatus to solve the above technical problems.

The purpose of the utility model is realized by the following technical scheme:

a back-blowing forming device comprises a heating assembly and a forming die positioned on one side of the heating assembly, wherein the forming die comprises an upper die, a die core and a lower die, the die core is mounted on the upper die and can move relative to the upper die, the die core is provided with a forming block, the lower die is provided with a forming groove matched with the forming block, and the forming block and the forming groove are multiple; the lower die is also provided with an air passage, and the forming grooves are communicated with the air passage.

Further, go up the mould and include box body and apron, the box body with the connection can be dismantled to the apron, the inside of box body has the accommodation space, the mold core is located in the accommodation space.

Furthermore, the box body is provided with a plurality of through holes, the number of the through holes is the same as that of the forming blocks, and each forming block can penetrate through the corresponding through hole.

Further, the air flue includes main entrance and a plurality of branch passageway, the one end of main entrance extends to the lateral wall of lower mould, and is a plurality of the one end of branch passageway respectively with a plurality of the bottom intercommunication in shaping groove, the other end with the main entrance intercommunication.

Furthermore, a control valve is installed on the side wall of the lower die and connected with one end of the main channel.

Further, the heating assembly comprises an upper heating die and a lower heating die which are arranged oppositely, and the upper heating die and the lower heating die can be close to or far away from each other.

Further, the upper heating die and the lower heating die are identical in structure and respectively comprise a fixing plate and a plurality of heating blocks arranged on the fixing plate.

Furthermore, the mold core is provided with a plurality of first threaded holes, and the cover plate is provided with a plurality of mounting holes corresponding to the first threaded holes.

Further, the fixed plate is provided with a plurality of second threaded holes.

Compared with the prior art, the utility model has the beneficial effects that:

the back-blowing forming device combines the characteristics of various forming processes, heats the material through the heating assembly, fixes the material between the upper die and the lower die, performs film pressing and stretching forming through the matching of the die core and the lower die, provides a back pressure for the material in forming through injecting air pressure into the lower die, enables the material to be attached to the die core, enables the product to be formed stably, improves the hardness of the product after forming, ensures the good appearance of the product after forming, is suitable for products with the same size and different heights, reduces the die changing frequency and reduces the die opening cost.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Reference numerals: 1-upper mould; 11-a cover plate; 111-mounting holes; 12-a cartridge body; 121-an accommodating space; 122-a through hole; 2, a mold core; 21-forming a block; 22-a first threaded hole; 3, lower die; 31-forming grooves; 32-the airway; 321-a main channel; 322-channel division; 4-a control valve; 5-upper heating mould; 51-a fixed plate; 511-a second threaded hole; 52-a heating block; and 6, heating the mold.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be described in further detail below with reference to specific embodiments and the accompanying drawings.

Referring to fig. 1, a preferred embodiment of the present invention is as follows.

A back-blowing forming device comprises a heating assembly and a forming die positioned on one side of the heating assembly, wherein the forming die comprises an upper die 1, a die core 2 and a lower die 3, the die core 2 is installed on the upper die 1 and can move relative to the upper die 1, the die core 2 is provided with a forming block 21, the lower die 3 is provided with a forming groove 31 matched with the forming block 21, and the forming block 21 and the forming groove 31 are multiple; the lower die 3 is further provided with an air passage 32, and the plurality of forming grooves 31 are communicated with the air passage 32. The forming blocks 21 are arranged into eighteen rows, eighteen forming blocks 21 are arranged in three rows and six rows, and correspondingly, the forming grooves 31 are eighteen rows and the number of the forming grooves correspond to that of the forming blocks 21, so that the purpose of one die with more forming grooves is achieved, and the production efficiency of products is improved.

The embodiment combines the characteristics of various processes, and realizes the effects of uniform stretching of the product, good hardness and appearance after molding and the like; the die is suitable for products with the same size and different heights, the function of producing various products by a single die is realized, the die changing frequency is reduced, and the die opening cost is reduced; the process has low requirements on softening and forming time of materials, forming is stable after debugging is finished, the service life of the high-temperature adhesive paper is prolonged, the production efficiency is improved to a certain extent, and the production cost is reduced more effectively.

This embodiment is when using, place the shaping material with the heating element in earlier the heating, provide sufficient tensile area for the material in forming process, then transfer the material shaping in the moulded die, it is concrete, fix the material through last mould 1 during the compound die, after accomplishing the compound die of last mould 1 with lower mould 3, utilize the vacuum ware to get rid of the air in the mould, discharge the air from air flue 32, also be simultaneously to the preliminary tensile effect of product bottom air flue 32, the cooperation of reuse mold core 2 and lower mould 3 makes the material tensile and reach certain shaping effect, then pour into the material that atmospheric pressure in for the design into in the air flue 32 and provide a directional pressure, make material and mold core 2 laminate completely.

In this embodiment, the upper die 1 includes a box 12 and a cover plate 11, the box 12 is detachably connected to the cover plate 11, the box 12 has an accommodating space 121 inside, and the die core 2 is located in the accommodating space 121. By disassembling the box 12 and the cover plate 11, the mold core 2 can be installed in the accommodating space 121, and the mold core 2 can move in the accommodating space 121.

In addition, the case 12 is provided with a plurality of through holes 122, the number of the through holes 122 is the same as that of the molding blocks 21, and each molding block 21 can pass through the corresponding through hole 122. The through holes 122 are arranged in a grid manner as the forming blocks 21, and the mold core 2 can drive the forming blocks 21 to penetrate through the through holes 122 so as to be matched with the forming grooves 31. Specifically, when the material forming device operates, the upper die 1 is matched with the lower die 3 firstly and used for fixing a formed material, and then the die core 2 is matched with the lower die 3 to form the material, so that the forming stability of the material can be effectively improved.

In this embodiment, the air duct 32 includes a main passage 321 and a plurality of sub-passages 322, one end of the main passage 321 extends to the side wall of the lower mold 3, and one ends of the plurality of sub-passages 322 are respectively communicated with the bottoms of the plurality of forming grooves 31, and the other ends are communicated with the main passage 321. A control valve 4 is installed at a side wall of the lower mold 3, and the control valve 4 is connected to one end of the main passage 321. The air pressure in the air conditioner is controlled by externally connecting a vacuum device and by utilizing the air pumping or pressurizing mode of the vacuum device.

In the present embodiment, the heating assembly includes an upper heating die 5 and a lower heating die 6 which are oppositely arranged, and the upper heating die 5 and the lower heating die 6 can be close to or away from each other, and can be realized by means of cylinder control and the like, which are conventional means in the prior art and will not be described in detail here. The upper and lower heater dies 5 and 6 have the same structure, and each include a fixing plate 51 and a plurality of heating blocks 52 provided on the fixing plate 51. The upper heating die 5 and the lower heating die 6 heat the material simultaneously, so that the material is fully heated, and the subsequent stretching and forming are facilitated.

In the present embodiment, the mold core 2 is provided with a plurality of first threaded holes 22, and the cover plate 11 is provided with a plurality of mounting holes 111 corresponding to the first threaded holes 22. The purpose that first screw hole 22 and mounting hole 111 set up can realize controlling mold core 2 alone, and mold core 2 is connected with actuating mechanism, and actuating mechanism drives and goes up mould 1 and mold core 2 and descend simultaneously, and after last mould 1 and lower mould 3 contact, actuating mechanism can further drive the decline of mold core 2, makes mold core 2 pass through-hole 122 and cooperates with lower mould 3. In addition, the fixing plate 51 is provided with a plurality of second screw holes 511, and the second screw holes 511 are provided for the purpose of facilitating the mounting of the upper and lower heat molds 5 and 6.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (9)

1. The back blowing forming device is characterized by comprising a heating assembly and a forming die positioned on one side of the heating assembly, wherein the forming die comprises an upper die (1), a die core (2) and a lower die (3), the die core (2) is installed on the upper die (1) and can move relative to the upper die (1), the die core (2) is provided with a forming block (21), the lower die (3) is provided with a forming groove (31) matched with the forming block (21), and the forming block (21) and the forming groove (31) are both multiple; the lower die (3) is further provided with an air passage (32), and the forming grooves (31) are communicated with the air passage (32).

2. The blowback forming device of claim 1, wherein the upper die (1) comprises a box body (12) and a cover plate (11), the box body (12) is detachably connected with the cover plate (11), an accommodating space (121) is formed inside the box body (12), and the die core (2) is located in the accommodating space (121).

3. A blow back forming device according to claim 2, wherein the casing (12) is provided with a plurality of through holes (122), the number of the through holes (122) is the same as that of the forming blocks (21), and each forming block (21) can pass through the corresponding through hole (122).

4. A blow-back molding apparatus according to claim 1, wherein the air duct (32) includes a main channel (321) and a plurality of sub-channels (322), one end of the main channel (321) extends to the side wall of the lower mold (3), one end of each of the plurality of sub-channels (322) communicates with the bottom of the plurality of molding grooves (31), and the other end communicates with the main channel (321).

5. A blow back molding apparatus according to claim 4, wherein a control valve (4) is installed on the side wall of the lower mold (3), and the control valve (4) is connected to one end of the main channel (321).

6. A blow back molding apparatus according to claim 1, wherein the heating assembly comprises an upper heating mold (5) and a lower heating mold (6) which are arranged oppositely, and the upper heating mold (5) and the lower heating mold (6) can be close to or far away from each other.

7. A blowback molding apparatus according to claim 6, wherein said upper and lower heating molds (5, 6) are identical in structure and each comprise a fixing plate (51) and a plurality of heating blocks (52) provided on said fixing plate (51).

8. A blow back molding apparatus according to claim 2, wherein the mold core (2) is provided with a plurality of first threaded holes (22), and the cover plate (11) is provided with a plurality of mounting holes (111) corresponding to the first threaded holes (22).

9. A blow back molding apparatus according to claim 7 wherein the fixing plate (51) is provided with a plurality of second threaded holes (511).

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