Compressed air bag heel setting machine

Abstract

The utility model relates to the technical field of heel setting machines, and discloses an air compression air bag heel setting machine which comprises a heating mold and a hot pressing part, the hot pressing part comprises a pressing mold body and a driving device used for driving the pressing mold body to move up and down, and the air compression air bag heel setting machine further comprises a notch formed in the pressing mold body, an air exchange channel communicated with an external air supply structure is formed in the notch; the air bag is wrapped in the notch through an edge pressing piece, and a sealed space is formed between the air bag and the notch; the air bag comprises an elastic layer and an outer covering layer, the edges of the elastic layer and the outer covering layer are attached to each other, and the outer covering layer is located in the sealed space. The elastic layer and the outer covering layer are attached and separated in the expansion and recovery process, after hot pressing is finished, the purpose of reducing the local thickness of the air bag is achieved through separation of the elastic layer and the outer covering layer, heat dissipation is accelerated, the elastic layer can be kept in a relatively low temperature environment in the interval stage of hot pressing, and the air bag is not prone to falling off. The aging speed of the whole air bag is delayed, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heel shaping machines, in particular to an air-compressed air bag heel shaping machine. Background Art

[0002] The heel shaping machine is a device specially used for shoe manufacturing. It is mainly used to shape the heel part of the shoe to make its shape stable and improve the overall quality and comfort of the shoe. It usually has two modes, hot and cold, which can be adjusted according to different upper materials.

[0003] For example, Chinese patent CN212036304U discloses a hot-pressing mold air bag of a shoe heel molding machine. The utility model effectively enhances the toughness of the mounting hole through an elastic rubber ring, so that the mounting hole deforms along with the tension, thereby enhancing the deformation capacity of the mounting hole, thereby increasing the firmness of the air bag body, preventing the air bag body from loosening on the pressing mold, so that the air bag body can be tightly pressed on the shoe material on the shoe last mold, and enhancing the pressing and molding effect.

[0004] However, during the shaping process of the back-end shaping machine, especially in the hot pressing mode, the air bag presses the heel of the shoe against the hot mold when the mold is heated. In this process, the air bag will also absorb some heat. Since the air bag is usually made of synthetic rubber and other materials, the aging of the air bag will be accelerated in a long-term high temperature environment, causing hardening, thereby affecting the elasticity and durability of the air bag. Therefore, it is necessary to allow the air bag to dissipate heat quickly. Utility Model Content

[0005] The utility model aims to provide an air-compressed air bag heel shaping machine to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-compressed air bag heel shaping machine, comprising a heating mold and a hot pressing part, wherein the hot pressing part comprises a die body and a driving device for driving the die body to move up and down, and further comprising:

[0007] A recess is provided inside the die body, and a ventilation channel connected to an external air supply structure is provided on the recess;

[0008] An air bag, wherein the air bag is covered in the notch by a pressure edge piece and forms a sealed space between the air bag and the notch;

[0009] The air bag includes an elastic layer and an outer covering layer whose edges are bonded to each other, and the outer covering layer is located in a sealed space. The middle part of the outer covering layer is set as an arc-shaped elastic part, and the arc-shaped elastic part can be bonded to or separated from the elastic layer, and can form a sandwich space between the elastic layer in a separated state.

[0010] Preferably, the edges of the elastic layer and the outer covering layer are bonded to each other through a hard bonding portion, an inner hole is opened inside the outer covering layer, and the inner hole is extended along the bending direction of the outer covering layer, an inner supporting rib is fixed to the inner wall of the inner hole in the bonding portion, and the inner supporting rib and the inner wall of the inner hole extending into the arc-shaped elastic portion can slide against each other.

[0011] Preferably, the elastic layer is provided with an edge binding at the edge of the outer covering layer, and the edge binding wraps and covers the edge of the outer covering layer.

[0012] Preferably, the edge is provided with a mounting hole for allowing bolts on the edge clamp to pass through.

[0013] Preferably, the outer covering layer is provided with a through hole for communicating the interlayer space with the sealed space.

[0014] Preferably, the surfaces of the elastic layer and the outer covering layer are both provided with a wear-resistant layer.

[0015] Preferably, a heat conducting layer is provided at the bonding position of the bonding portion.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model can ensure the complete fit of the elastic layer and the heel of the shoe during the hot pressing process by fitting and separating the elastic layer and the outer covering layer during the expansion and recovery process. At the same time, after the hot pressing is completed, the separation of the two also achieves the purpose of reducing the local thickness of the air bag. Not only can the heat absorbed by the elastic layer be discharged more quickly, but the heat absorbed by the outer covering layer can also be discharged along with the air intake of the ventilation channel, which accelerates the heat dissipation and enables the elastic layer to be maintained at a relatively low temperature environment during the interval stage of hot pressing, thereby delaying the aging speed of the overall air bag and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial stereoscopic diagram of the heel shaping machine of the utility model;

[0019] Figure 2 It is an enlarged stereoscopic view of the hot pressing part and the die body of the utility model;

[0020] Figure 3 It is an enlarged stereoscopic view of the elastic layer and the outer covering layer of the utility model;

[0021] Figure 4 It is a partial front view of the elastic layer and the outer covering layer of the utility model;

[0022] Figure 5 For this utility model Figure 4 Partial cross-sectional view and partial enlarged view along AA.

[0023] In the figure: 1. Heating mold; 2. Hot pressing part; 3. Pressing mold body; 4. Edge pressing piece; 5. Driving device; 6. Ventilation channel; 7. Notch; 8. Elastic layer; 9. Outer covering layer; 10. Edge binding; 11. Interlayer space; 12. Inner hole; 13. Inner supporting rib; 14. Mounting hole; 15. Fitting part. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 5 The utility model provides a technical solution: an air-compressed air bag heel shaping machine, comprising a heating mold 1 and a hot pressing part 2, the hot pressing part 2 comprising a die body 3 and a driving device 5 for driving the die body 3 to move up and down, and also comprising:

[0026] A recess 7 is provided inside the die body 3, and a ventilation channel 6 is provided on the recess 7 and communicated with an external air supply structure;

[0027] An air bag, which is covered in the notch 7 by the edge clamp 4 and forms a sealed space between the air bag and the notch 7;

[0028] The airbag includes an elastic layer 8 and an outer covering layer 9 whose edges are bonded to each other, and the outer covering layer 9 is located in a sealed space. The middle part of the outer covering layer 9 is set as an arc-shaped elastic part, which can be bonded to or separated from the elastic layer 8, and can form a sandwich space 11 between the arc-shaped elastic part and the elastic layer 8 in the separated state.

[0029] The outer covering layer 9 is provided with a through hole for communicating the interlayer space 11 with the sealed space.

[0030] During the use of the heel shaping machine, during hot pressing, air is injected into the ventilation channel 6 through the external air supply structure, so that the air pressure in the sealed space between the recess 7 and the outer covering layer 9 increases, so that the outer covering layer 9 and the elastic layer 8 bulge outwards together to complete the shaping process of the heel of the shoe;

[0031] It is worth mentioning that the outer covering layer 9 has two stages in the process of bulging outwards. First, it will bend from an arc shape until it fits with the elastic layer 8. The two can form a thicker air bag. Then, when it expands outwards again, it will expand together with the elastic layer 8. During the hot pressing process, the elastic layer 8 can be guaranteed to be completely fitted with the heel of the shoe until the subsequent hot pressing molding process is completed. On the contrary, during the inhalation stage of the ventilation channel 6, the air pressure in the sealed space decreases, and the elastic layer 8 and the outer covering layer 9 gradually recover elastically. At this time, the outer covering layer 9 will recover again. Figure 5 The state shown in the figure is shown, and a sandwich space 11 is formed again between the elastic layer 8. In this way, the purpose of reducing the local thickness of the airbag is achieved by separating the two. Not only can the heat absorbed by the elastic layer 8 be discharged more quickly, but the heat absorbed by the outer cover layer 9 can also be discharged along with the air intake of the ventilation channel 6, which accelerates the heat dissipation and enables the elastic layer 8 to be maintained at a relatively low temperature environment during the interval stage of hot pressing, thereby delaying the aging speed of the entire airbag and increasing the service life.

[0032] In one of the more preferred embodiments, the edges of the elastic layer 8 and the outer covering layer 9 are bonded to each other through a hard bonding portion 15, an inner hole 12 is opened inside the outer covering layer 9, and the inner hole 12 is extended along the bending direction of the outer covering layer 9, and an inner support rib 13 is fixed to the inner wall of the inner hole 12 located in the bonding portion 15, and the inner support rib 13 and the inner wall of the inner hole 12 extending into the arc-shaped elastic portion can slide against each other.

[0033] In order to improve the service life and elastic strength of the outer covering layer 9, an inner support rib 13 is arranged inside the outer covering layer 9 so that the outer covering layer 9 can maintain a certain stability during elastic deformation, expansion and recovery. The inner support rib 13 can be made of elastic plastic sheets and other materials, which can be bent without forming other protrusions on the surface of the outer covering layer 9 and the elastic layer 8 to affect the quality of hot pressing of the heel;

[0034] See also Figure 5 When the outer covering layer 9 expands, it will bend at the position of the fitting portion 15, and at the same time, it will also drive the inner supporting rib 13 to bend, and the inner supporting rib 13 can slide on the inner wall of the inner hole 12 in the arc-shaped elastic portion, which can provide a certain supporting strength and avoid the effect of pulling on the arc-shaped elastic portion.

[0035] In one of the more preferred embodiments, the elastic layer 8 is provided with an edge 10 at the edge of the outer covering layer 9 , and the edge 10 wraps and covers the edge of the outer covering layer 9 .

[0036] The edge 10 is provided with a mounting hole 14 for the bolts on the edge clamp 4 to pass through.

[0037] See also Figure 3The edge of the elastic layer 8 can be coated by the edging 10, and the local thickness can also be increased. In this way, when the bolts on the edge clamp 4 are fixed through the mounting holes 14, the toughness at the mounting holes 14 can be increased, thereby enhancing the deformation resistance of the mounting holes and further increasing the firmness of the airbag body.

[0038] In one of the more preferred embodiments, the surfaces of the elastic layer 8 and the outer cover layer 9 are both provided with a wear-resistant layer.

[0039] In one of the more preferred embodiments, a heat-conducting layer is provided at the bonding portion of the bonding portion 15, and the heat-conducting layer can further accelerate the transfer and dissipation of heat.

[0040] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressed air bag heel shaping machine, comprising a heating mold (1) and a hot pressing part (2), wherein the hot pressing part (2) comprises a die body (3) and a driving device (5) for driving the die body (3) to move up and down, characterized in that: Also includes: A recess (7) is provided inside the die body (3), and a ventilation channel (6) is provided on the recess (7) and is connected to an external air supply structure; An air bag, wherein the air bag is covered in the recess (7) by a pressure edge member (4) and forms a sealed space between the air bag and the recess (7); The air bag comprises an elastic layer (8) and an outer covering layer (9) whose edges are bonded to each other, and the outer covering layer (9) is located in a sealed space. The middle portion of the outer covering layer (9) is provided as an arc-shaped elastic portion, and the arc-shaped elastic portion can be bonded to or separated from the elastic layer (8), and in a separated state, a sandwich space (11) can be formed between the arc-shaped elastic portion and the elastic layer (8).

2. The air bag heel shaping machine according to claim 1, characterized in that: The edges of the elastic layer (8) and the outer covering layer (9) are bonded to each other via a hard bonding portion (15); an inner hole (12) is provided inside the outer covering layer (9); and the inner hole (12) is extended along the bending direction of the outer covering layer (9); an inner support rib (13) is fixed to the inner wall of the inner hole (12) in the bonding portion (15); and the inner support rib (13) and the inner wall of the inner hole (12) extending to the arc-shaped elastic portion are capable of sliding relative to each other.

3. The air bag heel shaping machine according to claim 1, characterized in that: The elastic layer (8) is provided with an edge wrapping (10) at the edge of the outer covering layer (9), and the edge wrapping (10) wraps and covers the edge of the outer covering layer (9).

4. The air bag heel shaping machine according to claim 3, characterized in that: The edge (10) is provided with a mounting hole (14) for allowing a bolt on the edge pressing piece (4) to pass through.

5. The air bag heel shaping machine according to claim 1, characterized in that: The outer covering layer (9) is provided with a through hole that enables the interlayer space (11) to communicate with the sealed space.

6. The air bag heel shaping machine according to any one of claims 1 to 5, characterized in that: The surfaces of the elastic layer (8) and the outer covering layer (9) are both provided with a wear-resistant layer.

7. The air bag heel shaping machine according to claim 2, characterized in that: A heat-conducting layer is provided at the bonding location of the bonding portion (15).

Images