Die assembly for hand bag forming equipment

Abstract

The utility model discloses a die assembly for hand bag forming equipment, which comprises a die body assembled to a die driving structure through a die connecting piece. The top end of the mold body is provided with a connecting part, the mold connecting piece is provided with a connecting concave part matched with the connecting part, the bottom end of the mold body is provided with an adsorption part, the adsorption part is provided with an adsorption cavity sunken towards the inner side of the mold body, and the outer edge of the adsorption part is flush with the bottom end face of the mold body. Moreover, a first gas transmission channel is arranged in the connecting part, one end, far away from the mold connecting piece, of the gas transmission channel of the connecting part is connected with the adsorption cavity through a gas pipeline in the mold body, and the other end of the gas transmission channel of the connecting part is communicated with an external gas pump through a second gas transmission channel in the mold connecting piece; as the external atmospheric pressure is higher than the negative pressure in the adsorption part, a pressure difference is formed, and the base material is sucked up under the action of the pressure difference between the external atmospheric pressure and the internal vacuum.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag processing, and particularly relates to a die assembly, which can be used for a handbag forming device. Background Art

[0002] A handbag forming device is a device for producing handbags. During the forming process of the handbag body, it is necessary to press the already cut base material into the forming space through a die for the forming of the handbag. Traditional handbag forming devices need to be additionally equipped with a bottom support structure to lift and lower together with the die, position and clamp the base material, and ensure that the base material does not deflect during the process of being extruded and lowered by the die, so that the base material can accurately enter the forming space for the forming operation of the handbag body.

[0003] Obviously, this structure has a higher cost. When the die moves and extrudes the die, it also needs to lift and lower together with the bottom support structure. Since the bottom support mechanism is heavy, the motor needs to bear a greater load. In addition, the bottom support structure not only needs to clamp and release the base material, but also needs to facilitate the detachment of the base material from the die after the base material is formed, that is, it needs to have an avoidance action, resulting in a large number of transmission components of the bottom support structure, occupying a large space, making the inside of the forming device more crowded, and making the assembly production and later maintenance operations very inconvenient. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems in the prior art that by setting a bottom support structure to clamp and position the base material under the die, the motor needs to bear a greater load; and the bottom support structure has a large number of transmission components, occupying a large space, making the inside of the forming device more crowded, and making the assembly production and later maintenance operations very inconvenient.

[0005] To solve the above technical problems, an embodiment of the utility model discloses a die assembly for a handbag forming device, which includes a die body, and the die body is assembled to a die driving structure through a die connecting member.

[0006] The top end of the die body has a connecting portion extending along the height direction of the die body and protruding outward from the top end face of the die body. The corresponding end face of the die connecting member has a connecting concave portion adapted to the connecting portion, and the connecting portion and the connecting concave portion are detachably and adaptively connected to connect the die body and the die connecting member together.

[0007] Wherein, an adsorption portion is arranged at the bottom end of the die body. The adsorption portion has an adsorption cavity recessed towards the inner side of the die body, and the outer edge of the adsorption portion is flush with the bottom end face of the die body.

[0008] Moreover, a first air delivery channel is provided inside the connecting portion. One end of the air delivery channel of the connecting portion, which is away from the mold connecting member, is connected to the adsorption cavity through a gas pipeline inside the mold body, and the other end is communicated with an external air pump through a second air delivery channel inside the mold connecting member.

[0009] When the mold body performs a forming action, the bottom end face of the mold body abuts against the surface of the base material, and the outer edge of the adsorption portion fits against the surface of the base material. The external air pump evacuates the adsorption cavity through the second air delivery channel, the first air delivery channel, and the gas pipeline, so that a vacuum state is formed inside the adsorption cavity.

[0010] With the above technical solution, the mold body of this mold assembly is assembled to the mold driving structure through the mold connecting member, and the mold body is linked by the mold driving structure to perform a forming action. The adsorption portion at the bottom end of the mold body is communicated with the first air delivery channel inside the connecting portion through a gas pipeline. When the connecting portion on the mold body is assembled to the connecting recess of the mold connecting member, the first air delivery channel is communicated with the second air delivery channel provided on the mold connecting member and connected to the external air pump, so that the adsorption portion on the mold body is communicated with the external air pump.

[0011] When the mold body performs a forming action, the bottom end face of the mold body abuts against the surface of the base material, and the outer edge of the adsorption portion fits against the surface of the base material, so that the adsorption cavity of the adsorption portion forms an almost airtight closed environment. The external air pump evacuates the adsorption cavity through the second air delivery channel, the first air delivery channel, and the gas pipeline. The air inside the adsorption cavity is pumped away. Since the opening of the adsorption portion is sealed by the base material, external air cannot be supplemented, and thus a vacuum state is formed inside the adsorption cavity, and the air pressure decreases. Then, due to the external atmospheric pressure being higher than the negative pressure inside the adsorption portion, a pressure difference is formed, and the base material is sucked up under the action of the pressure difference between the external air pressure and the internal vacuum. This mold assembly utilizes the principle of vacuum adsorption to achieve the purpose of clamping and positioning the base material by the mold. And compared with the mold structure with a bottom support structure in the prior art, the structure of this mold assembly is lightweight, the number of parts is small, it does not need to occupy much space, and the work difficulty of assembly production and later maintenance operations is reduced.

[0012] In addition, the adsorption portion on this mold body is communicated with the external air pump through a gas pipeline, the first air delivery channel on the connecting portion, and the second air delivery channel on the mold connecting member, so that the connecting portion on the mold body and the connecting recess on the mold connecting member not only play a role in connecting and assembling, but also can be used for transmitting gas. Compared with directly connecting the adsorption portion on the mold body to the external air pump with a pipeline, since the mold body needs to move frequently under the linkage of the mold driving structure, this structure can limit the shaking of the gas pipeline through the connecting portion and the connecting recess, and improve the assembly stability of the gas pipeline.

[0013] An embodiment of the present utility model discloses a mold assembly for a handbag forming device. When looking at the mold body from the top to the bottom along the height direction of the mold body, the outlet of the gas pipeline is located at the geometric center of the contour of the adsorption cavity.

[0014] With the above technical solution, when an external air pump pumps air into the adsorption part through the gas pipeline, since when looking at the mold body from the top to the bottom along the height direction of the mold body, the outlet of the gas pipeline is located at the geometric center of the contour of the adsorption cavity, the suction force received by the base material is uniform in the height direction of the mold body, and the base material can be smoothly attached to the outer edge of the adsorption part.

[0015] An embodiment of the present utility model discloses a mold assembly for a handbag forming device. The adsorption cavity is a funnel-shaped cavity with a gradually decreasing diameter from the bottom of the mold body, and the side wall of the adsorption cavity is made of an elastic material.

[0016] Wherein, when the mold body performs a forming action, an external air pump pumps air into the adsorption cavity through the second air delivery channel, the first air delivery channel, and the gas pipeline, and the side wall of the adsorption cavity can deform inward.

[0017] With the above technical solution, the funnel-shaped adsorption cavity enables the adsorption part to adsorb as much of the surface of the base material as possible, improving the stability of adsorbing the base material. When an external air pump pumps air into the adsorption part, since the side wall of the adsorption cavity is made of an elastic material, the side wall of the adsorption cavity will deform inward, thereby reducing the volume of the adsorption cavity. When the external air pump stops pumping air, the side wall of the adsorption cavity will return to its original state, causing the volume of the adsorption cavity to recover. However, the air in the adsorption cavity has been pumped away by the external air pump. At this time, without the external air pump continuously pumping air outwards, the adsorption cavity still maintains a vacuum state. Furthermore, since the external atmospheric pressure is higher than the negative pressure inside the adsorption part, a pressure difference is formed, thereby enabling the base material to be adsorbed. This structure enables the external air pump not to continuously work. The external air pump only needs to pump air into the adsorption part at the beginning to cause the side wall of the adsorption cavity to be sucked and deformed, thereby reducing the working intensity of the external air pump.

[0018] An embodiment of the present utility model discloses a mold assembly for a handbag forming device. Both the first air delivery channel and the gas pipeline extend along the height direction of the mold body; moreover, two connecting parts are arranged at intervals along the width direction at the top of the mold body, and adsorption parts corresponding to and communicating with the two connecting parts are arranged at the bottom of the mold body.

[0019] By adopting the above technical scheme, the first gas supply channel and the gas pipeline both extend along the height direction of the mold body to reduce the gas supply resistance, and the two connecting parts arranged at intervals along the width direction are respectively connected with the corresponding adsorption parts. On the one hand, the assembly stability between the mold body and the mold connecting part is ensured; on the other hand, the two adsorption parts are prevented from affecting each other when the external air pump evacuates the adsorption part through the connecting part, and it is ensured that the external air pump independently evacuates the corresponding adsorption part through the connecting part, so as to better control the adsorption force of each adsorption part.

[0020] An embodiment of the utility model discloses a mold assembly for a handbag forming device, each connecting part includes a connecting pin arranged at the top end of the mold body, the connecting pin includes a connecting pin rod extending along the height direction of the mold body, and a connecting pin head arranged at one end of the connecting pin rod away from the mold body, and the diameter of the connecting pin head is larger than the diameter of the connecting pin rod; a first gas delivery channel passes through the connecting pin rod and the connecting pin head along the height direction of the mold body, and a first gas nozzle for connecting a gas pipeline is arranged at one end of the connecting pin rod close to the mold body; each connecting recess extends along the height direction of the mold body, and the aperture of at least the part of the connecting recess close to the mold body is the same as the diameter of the connecting pin head.

[0021] In addition, the mold connecting part also includes a clamping block for clamping the connecting pin rod, and a clamping driving part for driving the clamping block to move in a height direction perpendicular to the mold body. The clamping block is arranged at the end of each connecting recess close to the mold body and below the corresponding part of the connecting pin head, and the clamping block has a clamping groove adapted to the connecting pin rod.

[0022] By adopting the above technical solution, the connecting pin of the mold body is assembled into the connecting recess of the mold connecting part. At this time, the clamping driving part on the mold connecting part drives the clamping block to move in the height direction perpendicular to the mold body, so that the clamping groove of the clamping block is embedded in the connecting pin rod and is located below the connecting pin head, thereby limiting the movement of the connecting pin in the connecting recess, preventing the connecting pin from falling off from the connecting recess, and thus firmly connecting the mold body.

[0023] The first gas delivery channel passes through the connecting pin rod and the connecting pin head along the height direction of the mold body, so that the gas is transmitted in the connecting pin. A first gas nozzle is provided at one end of the connecting pin rod close to the mold body to improve the air tightness of the connection between the first gas delivery channel on the connecting pin and the gas pipeline to prevent gas leakage.

[0024] An embodiment of the utility model discloses a mold assembly for a handbag forming device, in which a second air delivery channel extends along the height direction of the mold body, and one side end portion located inside the mold connector is connected to the corresponding end portion of the connecting recess; and an end of the second air delivery channel away from the connecting recess extends to a side end surface of the mold connector away from the mold body, and is formed with a second air nozzle connected to an external air pump.

[0025] The aperture of the connecting recess is the same as the diameter of the connecting pin head, one end of which extends along the height direction of the mold body to the end face of the mold connector close to the mold body, and the other end is connected to one end of the second gas supply channel, and the second gas supply channel and the connecting recess penetrate the mold connector in the height direction of the mold body.

[0026] Furthermore, the apertures of the first gas delivery channel, the second gas delivery channel, and the gas pipeline are the same and are all smaller than the aperture of the connecting recess.

[0027] By adopting the above technical solution, the second gas supply channel extends along the height direction of the mold body, and one end located inside the mold connector is connected to the corresponding end of the connecting recess, which is parallel to the extension direction of the second gas supply channel, thereby reducing the gas supply resistance in the gas supply channel.

[0028] In addition, one end of the second gas supply channel away from the connecting recess extends to the end surface of the mold connector facing away from the mold body, and is formed with a second gas nozzle connected to an external air pump, thereby improving the air tightness of the gas at the connection between the mold connector and the external air pump and preventing gas leakage.

[0029] The embodiment of the utility model discloses a mold assembly for a handbag forming device, wherein the inner side wall of the connecting recess is formed with an airtight groove for sleeve-mounting an airtight ring, and the airtight ring is sealed and adapted to the outer wall surface of the connecting pin head.

[0030] By adopting the above technical solution, when the connecting pin head is connected to the connecting recess, the airtightness can be improved by the airtight ring arranged in the airtight groove, thereby preventing gas leakage when the external air pump draws air to the adsorption part through the second gas supply channel, the first gas supply channel and the gas pipeline.

[0031] An embodiment of the utility model discloses a mold assembly for a handbag forming device, including a mounting frame fixed to the bottom of a mold body, the mounting frame is configured as a plate-like structure extending along the width direction of the mold body, the circumferential side wall of the mounting frame is fixedly connected to the bottom of the mold body, and the adsorption portion is assembled at the end of the mounting frame away from the mold body.

[0032] With the above technical solution, the adsorption part is connected to the bottom end of the mold body through the mounting frame. Since the mounting frame is arranged as a plate-like structure extending along the width direction of the mold body, it can ensure as much as possible that the outer edge of the adsorption part installed is flush with the bottom end face of the mold body, and improve the assembly stability between the mold body and the adsorption part.

[0033] An embodiment of the present utility model discloses a mold assembly for a handbag forming device. A plurality of adsorption parts arranged in an array are provided at the bottom end of the mold body.

[0034] Among them, the gas pipeline outlets in the mold body are respectively communicated with the adsorption cavities of each adsorption part to communicate the first gas transmission channels of the corresponding connection parts with each adsorption cavity.

[0035] With the above technical solution, a plurality of adsorption parts arranged in a whole row can ensure uniform adsorption force on the premise of improving the adsorption force on the base material, and thus ensure the adsorption stability of the base material. And the gas pipeline outlets in the mold body are respectively communicated with the adsorption cavities of each adsorption part, that is, a plurality of adsorption parts can share the gas pipeline, thereby reducing the number of gas pipelines and saving the space required for the structure for transmitting gas.

[0036] An embodiment of the present utility model discloses a mold assembly for a handbag forming device. The two sides of the mold body along the width direction have forming side walls, and a plurality of adsorption holes are formed at intervals on the forming side walls. Each adsorption hole is communicated with the first gas transmission channel of the corresponding connection part through an auxiliary gas pipeline in the mold body.

[0037] With the above technical solution, when the mold body presses the base material downward along the height direction, the base material at the periphery will be bent and attached to the forming side wall of the mold body, thus forming the basic shape of the bag body. And a plurality of adsorption holes provided on the forming side wall can suck air towards the adsorption holes through an external air pump with the auxiliary gas pipeline, so as to generate an adsorption effect on the base material attached to the outside of the forming side wall, making the base material fit more flatly on the forming side wall.

[0038] The beneficial effects of the present utility model are:

[0039] The present utility model discloses a mold assembly for a handbag forming device, including a mold body. The mold body is assembled to a mold driving structure through a mold connecting piece. The top end of the mold body has a connecting part extending along the height direction of the mold body and protruding outward from the top end face of the mold body. The corresponding end face of the mold connecting piece has a connecting concave part adapted to the connecting part. The connecting part and the connecting concave part are detachably and adaptively connected to connect the mold body and the mold connecting piece together.

[0040] Among them, an adsorption part is arranged at the bottom end of the mold body. The adsorption part has an adsorption cavity that is recessed toward the inner side of the mold body, and the outer edge of the adsorption part is flush with the bottom end face of the mold body. Moreover, a first air supply channel is provided inside the connecting part. One end of the air supply channel of the connecting part far from the mold connecting piece is connected to the adsorption cavity through a gas pipeline inside the mold body, and the other end is communicated with an external air pump through a second air supply channel inside the mold connecting piece.

[0041] When the mold body performs a forming action, the bottom end face of the mold body abuts against the surface of the substrate, and the outer edge of the adsorption part fits against the surface of the substrate, so that the adsorption cavity of the adsorption part forms a nearly airtight closed environment. The external air pump evacuates the adsorption cavity through the second air supply channel, the first air supply channel, and the gas pipeline. The air in the adsorption cavity is pumped away. Since the opening of the adsorption part is sealed by the substrate, external air cannot be supplemented. As a result, a vacuum state is formed in the adsorption cavity, and the air pressure decreases. Then, due to the external atmospheric pressure being higher than the negative pressure inside the adsorption part, a pressure difference is formed, and the substrate is sucked up under the action of the pressure difference between the external air pressure and the internal vacuum. This mold assembly utilizes the principle of vacuum adsorption to achieve the purpose of clamping and positioning the substrate by the mold. And compared with the mold structure with a bottom support structure in the prior art, this mold assembly has a light structure, fewer components, does not require much occupied space, and reduces the working difficulty of assembly production and later maintenance operations. Description of the Drawings

[0042] Figure 1 It is a schematic structural diagram of a mold assembly for a handbag forming device provided by an embodiment of the present invention;

[0043] Figure 2 It is a schematic structural diagram of the mold connecting piece, the connecting part on the mold body, and the gas pipeline of the mold assembly for a handbag forming device provided by an embodiment of the present invention, where the gas pipeline communicates with the adsorption part;

[0044] Figure 3 It is a partial schematic diagram of the gas pipeline and the adsorption part of the mold assembly for a handbag forming device provided by an embodiment of the present invention;

[0045] Figure 4 It is a schematic structural diagram of the mold body and the gas pipeline of the mold assembly for a handbag forming device provided by an embodiment of the present invention;

[0046] Figure 5 It is an assembly schematic diagram of the adsorption part and the mounting bracket of the mold assembly for a handbag forming device provided by an embodiment of the present invention;

[0047] Figure 6 It is a partial schematic diagram of the connecting part on the mold body of the mold assembly for a handbag forming device provided by an embodiment of the present invention;

[0048] Figure 7 A cross-sectional view of a mold connecting member of a mold assembly for a handbag forming device provided by an embodiment of the present utility model;

[0049] Figure 8 An assembly schematic diagram of a top end face connecting portion of a mold body of a mold assembly for a handbag forming device provided by an embodiment of the present utility model, a clamping block and a clamping driving member on a mold connecting member.

[0050] Explanation of reference numerals:

[0051] 10. Mold assembly;

[0052] 100. Mold body;

[0053] 110. Connecting portion; 101. First air delivery channel;

[0054] 111. Connecting pin; 112. Connecting pin rod; 113. Connecting pin head; 114. First air nozzle;

[0055] 115. Locking pin;

[0056] 120. Adsorption portion; 130. Mounting bracket; 140. Limiting hole;

[0057] 200. Mold connecting member;

[0058] 210. Connecting recess; 211. Airtight groove; 212. Airtight ring;

[0059] 220. Second air delivery channel; 221. Second air nozzle;

[0060] 230. Clamping block; 240. Clamping driving member; 250. Chuck;

[0061] 300. Gas pipeline;

[0062] Z. Height direction. Detailed implementation manners

[0063] A handbag forming device, as a device dedicated to the production of handbags, its core function is to press a pre-cut base material into a forming space through precisely controlled mold operations to complete the forming process of the handbag. In traditional designs, such devices often need to be additionally equipped with a bottom support structure, which works in cooperation with the mold. Through lifting movement, it realizes the positioning and clamping of the base material, ensures the stability of the base material during the mold extrusion process, prevents it from skewing, and thus ensures the accuracy of the handbag body forming.

[0064] However, this design has several significant disadvantages. First, from a cost-effectiveness perspective, the addition of a bottom support structure will undoubtedly increase the overall manufacturing cost of the equipment. Secondly, since the bottom support structure itself is heavy, the motor needs to bear additional loads when the mold is lifting and extruding, which not only increases energy consumption, but may also have an adverse effect on the service life of the motor. Furthermore, the bottom support structure needs to have a complex transmission mechanism to achieve the clamping, loosening and avoidance of the substrate after molding. These complex mechanical components not only occupy the internal space of the equipment, making the equipment structure more compact and crowded, but also increase the difficulty of assembly and production and the complexity of subsequent maintenance and repair.

[0065] To this end, the utility model provides a mold assembly and a mold connector for a handbag forming device, wherein the top of the mold body has a connecting portion, and the connecting portion of the mold body can be assembled with the connecting recess on the mold connector, and the bottom of the mold is provided with an adsorption portion, and the adsorption portion has an adsorption cavity recessed toward the inner side of the mold body, and the adsorption cavity is connected to the first gas transmission channel in the connecting portion through a gas pipeline, and the connecting recess on the mold connector is connected to an external air pump through a second gas transmission channel, and when the bottom end face of the mold body abuts against the surface of the substrate and the outer edge of the adsorption portion is attached to the surface of the substrate, the external air pump evacuates the adsorption cavity through the second gas transmission channel, the first gas transmission channel, and the gas pipeline, and then because the external atmospheric pressure is higher than the negative pressure in the adsorption portion, a pressure difference is formed, and the substrate is sucked up under the pressure difference between the external air pressure and the internal vacuum. Compared with the method of clamping the substrate by the bottom support structure in the prior art, this mold assembly adsorbs the substrate by vacuum adsorption, which is not easy to damage the substrate, and the structure is light, which reduces the difficulty of assembly production and later maintenance operations.

[0066] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0067] like Figure 1 As shown, an embodiment of the utility model discloses a mold assembly 10 for a handbag forming device, including a mold body 100, and the mold body 100 is assembled to the mold driving structure through a mold connector 200. It should be noted that the mold connector 200 can be assembled to the mold driving structure by means of a snap connection or a screw connection, and this embodiment does not make any specific limitation on this.

[0068] It should be noted that, in this embodiment, the substrate processed by the handbag forming equipment can be plastic, paper, cloth, etc. In this embodiment, the substrate processed by this handbag forming equipment is non-woven fabric. Of course, regarding the specific selection of the substrate, technical personnel in this field can design it according to actual conditions and specific needs, and this embodiment does not make specific limitations on this.

[0069] The top end of the mold body 100 has a connecting portion 110 that extends along the height direction Z of the mold body 100 and protrudes outward from the top end face of the mold body 100. The corresponding end face of the mold connecting member 200 has a connecting recess 210 adapted to the connecting portion 110. The connecting portion 110 and the connecting recess 210 are detachably and adaptively connected to connect the mold body 100 and the mold connecting member 200 together.

[0070] Wherein, an adsorption portion 120 is provided at the bottom end of the mold body 100. The adsorption portion 120 has an adsorption cavity that is recessed toward the inside of the mold body 100, and the outer edge of the adsorption portion 120 is flush with the bottom end face of the mold body 100.

[0071] And, as Figure 2 、 Figure 7 and Figure 8 shown, a first air supply channel 101 is provided in the connecting portion 110. And, one end of the air supply channel of the connecting portion 110 away from the mold connecting member 200 is connected to the adsorption cavity through a gas pipeline 300 inside the mold body 100, and the other end is communicated with an external air pump through a second air supply channel 220 inside the mold connecting member 200.

[0072] When the mold body 100 performs a forming action, the bottom end face of the mold body 100 abuts against the surface of the substrate, and the outer edge of the adsorption portion 120 fits against the surface of the substrate. The external air pump evacuates the adsorption cavity through the second air supply channel 220, the first air supply channel 101, and the gas pipeline 300, so that the adsorption cavity is in a vacuum state.

[0073] When the mold body 100 performs a forming action, the bottom end face of the mold body 100 abuts against the surface of the substrate, and the outer edge of the adsorption portion 120 fits against the surface of the substrate, so that the adsorption cavity of the adsorption portion 120 forms an almost airtight closed environment. The external air pump evacuates the adsorption cavity through the second air supply channel 220, the first air supply channel 101, and the gas pipeline 300. The air in the adsorption cavity is pumped away, and because the opening of the adsorption portion 120 is sealed by the substrate, the outside air cannot be supplemented. As a result, a vacuum state is formed in the adsorption cavity, the air pressure decreases, and then, due to the external atmospheric pressure being higher than the negative pressure inside the adsorption portion 120, a pressure difference is formed, and the substrate is sucked up under the action of the pressure difference between the external air pressure and the internal vacuum. This mold assembly 10 utilizes the principle of vacuum adsorption to achieve the purpose of clamping and positioning the substrate by the mold. And compared with the mold structure provided with a bottom support structure in the prior art, the structure of this mold assembly 10 is light, the number of components is small, it does not need to occupy much space, and the work difficulty of assembly production and later maintenance operations is reduced.

[0074] In addition, the adsorption part 120 on the mold body 100 is communicated with an external air pump through a gas pipeline 300, a first gas transmission channel 101 on the connecting part 110, and a second gas transmission channel 220 on the mold connecting piece 200. The connecting part 110 on the mold body 100 and the connecting concave part 210 on the mold connecting piece 200 not only play a role in connecting and assembling, but also can be used to transmit gas. Compared with directly connecting the adsorption part 120 on the mold body 100 to the external air pump through a pipeline, since the mold body 100 needs to move frequently under the linkage of the mold driving structure, this structure can limit the shaking of the gas pipeline 300 through the connecting part 110 and the connecting concave part 210, and improve the assembly stability of the gas pipeline 300.

[0075] More specifically, as Figure 4 shown, in this embodiment, both the first gas transmission channel 101 and the gas pipeline 300 extend along the height direction Z of the mold body 100; moreover, two connecting parts 110 are arranged at intervals along the width direction at the top end of the mold body 100, and adsorption parts 120 corresponding to and communicating with the two connecting parts 110 are arranged at the bottom end of the mold body 100.

[0076] In this embodiment, both the first gas transmission channel 101 and the gas pipeline 300 extend along the height direction Z of the mold body 100 so as to reduce the gas transmission resistance, and the two connecting parts 110 arranged at intervals along the width direction are respectively communicated with the corresponding adsorption parts 120. On the one hand, the assembly stability between the mold body 100 and the mold connecting piece 200 is ensured; on the other hand, when the external air pump evacuates the adsorption parts 120 through the connecting parts 110, the two adsorption parts 120 are prevented from affecting each other, and it is ensured that the external air pump independently evacuates the corresponding adsorption parts 120 through the connecting parts 110, so as to better control the adsorption force of each adsorption part 120.

[0077] It should be noted that when looking at the mold body 100 along the height direction Z of the mold body 100, a pair of connecting parts 110 arranged along the width direction are staggered from a pair of adsorption parts 120, and in order to improve the connection stability between the mold body 100 and the mold connecting piece 200, the distance between the pair of connecting parts 110 is greater than the distance between the pair of adsorption parts 120. On both sides of the mold body 100 along the width direction, limiting holes 140 are respectively formed. After the gas pipeline 300 communicated with the first gas transmission channel 101 of the connecting part 110 penetrates into the limiting holes 140, it is connected to the corresponding adsorption part 120, thereby limiting the shaking of the gas pipeline 300.

[0078] Furthermore, as Figure 4 and Figure 5As shown, the mold assembly 10 further includes a mounting frame 130 fixed to the bottom of the mold body 100. The mounting frame 130 is arranged as a plate-like structure extending along the width direction of the mold body 100. The circumferential side wall of the mounting frame 130 is fixedly connected to the bottom of the mold body 100, and the adsorption part 120 is assembled at the end of the mounting frame 130 away from the mold body 100.

[0079] In this embodiment, the adsorption part 120 is connected to the bottom end of the mold body 100 through the mounting frame 130. Since the mounting frame 130 is arranged as a plate-like structure extending along the width direction of the mold body 100, it can ensure as much as possible that the outer edge of the adsorption part 120 installed is flush with the bottom end face of the mold body 100, and improve the assembly stability between the mold body 100 and the adsorption part 120.

[0080] In another alternative embodiment, a plurality of adsorption parts 120 are arranged in an array at the bottom end of the mold body 100.

[0081] Among them, the outlets of the gas pipelines 300 in the mold body 100 are respectively communicated with the adsorption cavities of each adsorption part 120 to communicate the first gas transmission channels 101 of the corresponding connecting parts 110 with each adsorption cavity.

[0082] In this embodiment, a plurality of adsorption parts 120 arranged in an array can ensure uniform adsorption force on the premise of improving the adsorption force on the substrate, and then ensure the adsorption stability of the substrate. And the outlets of the gas pipelines 300 in the mold body 100 are respectively communicated with the adsorption cavities of each adsorption part 120, that is, a plurality of adsorption parts 120 can share the gas pipeline 300, thereby reducing the number of gas pipelines 300 and saving the space required for the structure for transmitting gas.

[0083] The adsorption part 120 will be described in detail below.

[0084] Further, as Figure 3 shown, in this embodiment, when looking at the bottom end of the mold body 100 along the height direction Z of the mold body 100, the outlet of the gas pipeline 300 is located at the geometric center of the contour of the adsorption cavity.

[0085] When an external air pump pumps air into the adsorption part 120 through the gas pipeline 300, since when looking at the bottom end of the mold body 100 along the height direction Z of the mold body 100, the outlet of the gas pipeline 300 is located at the geometric center of the contour of the adsorption cavity, it makes the suction force received by the substrate uniform in the height direction Z of the mold body 100, and the substrate can be smoothly attached to the outer edge of the adsorption part 120.

[0086] Certainly, in another alternative embodiment, when looking towards the bottom end of the mold body 100 along the height direction Z of the mold body 100, the gas pipeline 300 connects multiple branch pipelines, and the multiple branch pipelines can be evenly connected along the circumferential direction of the adsorption part 120, which can also make the suction force received by the substrate uniform.

[0087] Moreover, in this embodiment, the adsorption cavity is a funnel-shaped cavity with a gradually decreasing diameter from the bottom end of the mold body 100, and the side wall of the adsorption cavity is made of an elastic material. It should be noted that the shape of the adsorption cavity is not limited to the funnel shape, and can also be a cylindrical shape, a prismatic shape, a hemispherical shape, etc. Those skilled in the art can design according to the actual situation and specific requirements, and this embodiment does not make a unique limitation on this.

[0088] The elastic material for making the adsorption part 120 can be any one of styrene-butadiene rubber, cis-butadiene rubber, isoprene rubber or chloroprene rubber. Those skilled in the art can design according to the actual situation and specific requirements, and this embodiment does not make a specific limitation on this.

[0089] Among them, when the mold body 100 performs a forming action, an external air pump evacuates the adsorption cavity through the second air delivery channel 220, the first air delivery channel 101, and the gas pipeline 300, and the side wall of the adsorption cavity can deform towards the inside.

[0090] In this embodiment, the funnel-shaped adsorption cavity enables the adsorption part 120 to adsorb as much of the substrate surface as possible, improving the stability of adsorbing the substrate. When the external air pump evacuates the inside of the adsorption part 120, since the side wall of the adsorption cavity is made of an elastic material, the side wall of the adsorption cavity will deform towards the inside, thereby reducing the volume of the adsorption cavity. When the external air pump stops evacuating, the side wall of the adsorption cavity will recover, making the volume of the adsorption cavity recover, but the air in the adsorption cavity has been evacuated by the external air pump. At this time, without the external air pump continuously evacuating outward, the adsorption cavity still maintains a vacuum state. Furthermore, due to the external atmospheric pressure being higher than the negative pressure inside the adsorption part 120, a pressure difference is formed, thereby enabling the substrate to be adsorbed. This structure enables the external air pump not to continuously work. The external air pump only needs to evacuate the inside of the adsorption part 120 at the beginning of adsorption to make the side wall of the adsorption cavity be sucked and deformed, thereby reducing the working intensity of the external air pump.

[0091] The connection part 110 on the mold body 100 and the connection recess 210 on the mold connector 200 will be described in detail below.

[0092] In this embodiment, as Figure 8As shown, each connecting part 110 includes a connecting pin 111 provided at the top end of the mold body 100. The connecting pin 111 includes a connecting pin rod 112 extending along the height direction Z of the mold body 100, and a connecting pin head 113 provided at one end of the connecting pin rod 112 away from the mold body 100. The diameter of the connecting pin head 113 is larger than that of the connecting pin rod 112. The first gas transmission channel 101 penetrates through the connecting pin rod 112 and the connecting pin head 113 along the height direction Z of the mold body 100. A first gas nozzle 114 for connecting the gas pipeline 300 is provided at one end of the connecting pin rod 112 close to the mold body 100. Each connecting recess 210 extends along the height direction Z of the mold body 100, and the aperture diameter of at least the part of the connecting recess 210 close to the mold body 100 is the same as the diameter of the connecting pin head 113.

[0093] And, as Figure 7 and Figure 8 shown, the mold connecting piece 200 further includes a clamping block 230 for clamping the connecting pin rod 112, and a clamping driving part 240 for driving the clamping block 230 to move in a direction perpendicular to the height direction Z of the mold body 100. The clamping block 230 is provided at the end of each connecting recess 210 close to the mold body 100, below the corresponding part of the connecting pin head 113, and the clamping block 230 has a clamping groove adapted to the connecting pin rod 112.

[0094] It should be noted that the clamping driving part 240 for driving the clamping block 230 can be a linear motor or a cylinder. Those skilled in the art can select according to the actual situation and specific requirements.

[0095] In this embodiment, the connecting pin 111 of the mold body 100 is assembled into the connecting recess 210 of the mold connecting piece 200. At this time, the clamping driving part 240 on the mold connecting piece 200 drives the clamping block 230 to move in a direction perpendicular to the height direction Z of the mold body 100, so that the clamping groove of the clamping block 230 is embedded on the connecting pin rod 112, below the connecting pin head 113, thereby restricting the movement of the connecting pin 111 in the connecting recess 210 and preventing the connecting pin 111 from falling out of the connecting recess 210, and further firmly connecting the mold body 100.

[0096] The first gas transmission channel 101 penetrates through the connecting pin rod 112 and the connecting pin head 113 along the height direction Z of the mold body 100, so that gas is transmitted in the connecting pin 111. A first gas nozzle 114 is provided at one end of the connecting pin rod 112 close to the mold body 100 to improve the airtightness at the connection between the first gas transmission channel 101 on the connecting pin 111 and the gas pipeline 300 and prevent gas leakage.

[0097] Further, in this embodiment, the second gas transmission channel 220 extends along the height direction Z of the mold body 100, and one end located inside the mold connector 200 communicates with the corresponding end of the connection recess 210; moreover, the end of the second gas transmission channel 220 far from the connection recess 210 extends to the end face of the mold connector 200 facing away from the mold body 100, and a second gas nozzle 221 communicating with an external air pump is formed.

[0098] The aperture diameter of the connection recess 210 is the same as the diameter of the connection pin head 113. One end of it extends along the height direction Z of the mold body 100 to the end face of the mold connector 200 close to the mold body 100, and the other end communicates with one end of the second gas transmission channel 220. And the second gas transmission channel 220 and the connection recess 210 penetrate through the mold connector 200 in the height direction Z of the mold body 100.

[0099] Moreover, the aperture diameters of the first gas transmission channel 101, the second gas transmission channel 220, and the gas pipeline 300 are the same, and are all smaller than the aperture diameter of the connection recess 210.

[0100] In this embodiment, the second gas transmission channel 220 extends along the height direction Z of the mold body 100, and one end located inside the mold connector 200 communicates with the corresponding end of the connection recess 210, being parallel to the extension direction of the second gas transmission channel 220, reducing the gas transmission resistance in the gas transmission channel.

[0101] It should be noted that the second gas transmission channel 220 may also extend along a direction perpendicular to the height direction Z of the mold body 100, and one end located inside the mold connector 200 communicates with the corresponding end of the connection recess 210, or extends obliquely with respect to the height direction Z of the mold body 100. Those skilled in the art can design according to the actual situation and specific requirements, and this embodiment does not make a unique limitation in this regard.

[0102] And the end of the second gas transmission channel 220 far from the connection recess 210 extends to the end face of the mold connector 200 facing away from the mold body 100, and a second gas nozzle 221 communicating with an external air pump is formed, which can improve the airtightness at the connection between the mold connector 200 and the external air pump and prevent gas leakage.

[0103] Further, as Figure 7 shown, in this embodiment, an airtight groove 211 for sleeving an airtight ring 212 is formed on the inner side wall of the connection recess 210, and the airtight ring 212 is sealingly adapted to the outer wall surface of the connection pin head 113.

[0104] When the connecting pin head 113 is connected to the connecting recess 210, the airtight ring 212 provided in the airtight groove 211 can improve the airtightness and prevent gas leakage when the external air pump sucks air through the second air delivery channel 220, the first air delivery channel 101, and the gas pipeline 300 to the adsorption part 120.

[0105] It should be noted that, as Figure 2 and Figure 4 shown, in order to improve the connection strength between the mold body 100 and the mold connector 200, a locking pin 115 is further provided on the top end surface of the mold body 100 between the two connecting pins 111. The mold connector 200 is formed with a chuck 250 adapted to the locking pin 115 at the corresponding position. When the two connecting pins 111 on the mold body 100 are embedded in the corresponding connecting recesses 210 on the mold connector 200, the chuck 250 on the mold connector 200 locks the corresponding locking pin 115.

[0106] In addition, in this embodiment, both sides of the mold body 100 in the width direction have forming side walls, and a plurality of adsorption holes are formed at intervals on the forming side walls. Each adsorption hole communicates with the first air delivery channel 101 of the corresponding connecting part 110 through an auxiliary gas pipeline in the mold body 100.

[0107] Adopting the above technical solution, when the mold body 100 presses the base material downward in the height direction Z, the base material at the periphery will be bent and attached to the forming side wall of the mold body 100, thus forming the basic shape of the bag body. The plurality of adsorption holes provided on the forming side wall can suck air towards the adsorption holes through the external air pump with the auxiliary gas pipeline 300, so as to generate an adsorption effect on the base material attached to the outside of the forming side wall, making the base material fit more flatly on the forming side wall.

[0108] Of course, in another embodiment, the plurality of adsorption holes formed at intervals on the forming side wall can also be directly connected to the external air pump through the auxiliary gas pipeline, so that when the external air pump sucks air from the adsorption part 120 or the plurality of adsorption holes, they will not affect each other and can be controlled separately. It should be noted that regarding the specific design of the adsorption holes on the forming side wall, those skilled in the art can design according to the actual situation and specific requirements, and this embodiment does not make specific limitations.

[0109] In summary, the present utility model provides a mold assembly 10 for a handbag forming device. Two connecting pins 111 on the top end face of the mold body 100 are assembled with corresponding connecting recesses 210 on the mold connecting member 200, and the clamping driving member 240 drives the clamping block 230 to clamp the connecting pin 111. At the same time, the chuck 250 on the mold connecting member 200 clamps the locking pin 115 on the mold body 100, thereby completing the assembly of the mold body 100. At this time, the first air supply channel 101 in the connecting pin 111 is communicated with the second air supply channel 220 in the mold connecting member 200, and the first air nozzle 114 on the connecting pin 111 is communicated with the adsorption part 120 through a gas pipeline 300. The second air nozzle 221 on the mold connecting member 200 is communicated with an external air pump. When the bottom end face of the mold body 100 abuts against the substrate, the external air pump evacuates the adsorption cavity through the second air supply channel 220, the first air supply channel 101, and the gas pipeline 300. The air in the adsorption cavity is evacuated, and because the opening of the adsorption part 120 is sealed by the substrate, the outside air cannot be supplemented, and thus a vacuum state is formed in the adsorption cavity, the air pressure decreases, and then due to the external atmospheric pressure being higher than the negative pressure in the adsorption part 120, a pressure difference is formed, and the substrate is sucked up under the action of the pressure difference between the external air pressure and the internal vacuum. It should be noted that, on the contrary, when the substrate needs to be separated after being extruded and formed by the mold body 100, the external air pump can also be used to inflate the adsorption cavity.

[0110] It should be noted that, in addition to the embodiments of the present utility model described in the above specific embodiments, those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Although the description of the present utility model is introduced in combination with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of introducing the utility model in combination with the embodiment is to cover other alternatives or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details are included in the above description, and the present utility model can also be implemented without using these details. In addition, in order to avoid confusion or obscuring the key points of the present utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0111] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0112] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0113] The terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0114] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0115] Although the present utility model has been illustrated and described by referring to some preferred embodiments of the present utility model, those of ordinary skill in the art should understand that the above content is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. Those skilled in the art can make various changes in form and detail, including making several simple deductions or substitutions, without departing from the spirit and scope of the present utility model.

Claims

1. A mold assembly for a handbag forming device, comprising a mold body, wherein the mold body is assembled to a mold driving structure through a mold connector; characterized in that: The top end of the mold body has a connecting portion extending along the height direction of the mold body and extending outward from the top end surface of the mold body, and the corresponding end surface of the mold connector has a connecting recess adapted to the connecting portion, and the connecting portion and the connecting recess are detachably adapted to connect the mold body and the mold connector together; The bottom end of the mold body is provided with an adsorption portion, the adsorption portion has an adsorption cavity recessed toward the inner side of the mold body, and the outer edge of the adsorption portion is flush with the bottom end surface of the mold body; and The connecting part has a first gas delivery channel, and one end of the gas delivery channel of the connecting part away from the mold connecting piece is connected to the adsorption cavity through the gas pipeline in the mold body, and the other end is connected to the external air pump through the second gas delivery channel in the mold connecting piece; When the mold body performs the molding action, the bottom end surface of the mold body abuts against the surface of the substrate, and the outer edge of the adsorption portion is attached to the surface of the substrate. The external air pump evacuates the adsorption cavity through the second gas supply channel, the first gas supply channel, and the gas pipeline to make the adsorption cavity in a vacuum state.

2. The mold assembly for a handbag forming device according to claim 1, characterized in that: When looking toward the bottom end of the mold body along the height direction of the mold body, the outlet of the gas pipeline is located at the geometric center of the outline of the adsorption cavity.

3. The mold assembly for a handbag forming device according to claim 2, characterized in that: The adsorption cavity is a funnel-shaped cavity whose diameter gradually decreases from the bottom end of the mold body, and the side wall of the adsorption cavity is made of elastic material; When the mold body performs a molding action, the external air pump evacuates the adsorption cavity through the second air delivery channel, the first air delivery channel, and the gas pipeline, and the side wall of the adsorption cavity can be deformed toward the inside.

4. The mold assembly for a handbag forming device according to any one of claims 1 to 3, characterized in that: The first gas delivery channel and the gas pipeline both extend along the height direction of the mold body; and the two connecting parts are arranged at intervals along the width direction at the top end of the mold body, and the adsorption parts corresponding to and connected to the two connecting parts are arranged at the bottom end of the mold body.

5. The mold assembly for a handbag forming device according to claim 4, characterized in that: Each of the connecting parts comprises a connecting pin arranged at the top end of the mold body, the connecting pin comprises a connecting pin rod extending in the height direction of the mold body, and a connecting pin head arranged at one end of the connecting pin rod away from the mold body, the diameter of the connecting pin head is larger than the diameter of the connecting pin rod; the first gas delivery channel penetrates the connecting pin rod and the connecting pin head in the height direction of the mold body, and the connecting pin rod is provided with a first gas nozzle connected to the gas pipeline at one end close to the mold body; each connecting recess extends in the height direction of the mold body, and the aperture of at least the part of the connecting recess close to the mold body is the same as the diameter of the connecting pin head; and The mold connecting part also includes a clamping block for clamping the connecting pin rod, and a clamping driving part for driving the clamping block to move in a height direction perpendicular to the mold body. The clamping block is arranged at the end of each connecting recess close to the mold body and below the corresponding part of the connecting pin head, and the clamping block has a clamping groove adapted to the connecting pin rod.

6. The mold assembly for a handbag forming device according to claim 5, characterized in that: in The second gas delivery channel extends along the height direction of the mold body, and one end portion located inside the mold connector is connected to the corresponding end portion of the connecting recess; and one end of the second gas delivery channel away from the connecting recess extends to an end surface of the mold connector away from the mold body, and is formed with a second gas nozzle connected to the external air pump; The hole diameter of the connecting recess is the same as the diameter of the connecting pin head, one end of the connecting recess extends along the height direction of the mold body to the end surface of the mold connector close to the mold body, and the other end is connected to the end of the second gas supply channel, and the second gas supply channel and the connecting recess penetrate the mold connector in the height direction of the mold body; and The apertures of the first gas transmission channel, the second gas transmission channel, and the gas pipeline are the same and are all smaller than the aperture of the connecting recess.

7. The mold assembly for a handbag forming device according to claim 6, characterized in that: in An airtight groove for sleeve-mounting an airtight ring is formed on the inner side wall of the connecting recess, and the airtight ring is sealingly adapted to the outer wall surface of the connecting pin head.

8. The mold assembly for a handbag forming device according to claim 4, characterized in that: It also includes a mounting frame fixed to the bottom of the mold body, the mounting frame is configured as a plate-like structure extending along the width direction of the mold body, the circumferential side wall of the mounting frame is fixedly connected to the bottom of the mold body, and the adsorption portion is assembled at the end of the mounting frame away from the mold body.

9. The mold assembly for a handbag forming device according to any one of claims 1 to 3, characterized in that: The bottom end of the mold body is provided with a plurality of adsorption parts distributed in an array; The gas pipeline outlet in the mold body is respectively communicated with the adsorption cavity of each adsorption part to connect the first gas delivery channel of the corresponding connecting part with each adsorption cavity.

10. The mold assembly for a handbag forming device according to any one of claims 1 to 3, characterized in that: The mold body has molding side walls on both sides along the width direction, and a plurality of adsorption holes are formed at intervals on the molding side walls. Each of the adsorption holes is connected to the first gas delivery channel of the corresponding connecting part through an auxiliary gas pipeline in the mold body.

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