Shoe forming inner last structure, rubber rain shoe forming device and rubber rain shoe forming method

Abstract

The embodiment of the invention discloses a shoe forming inner last structure, a rubber rain shoe forming device and a rubber rain shoe forming method, and the inner last structure comprises an inner last body which is formed by splicing an upper inner last part corresponding to the upper part of a shoe and a lower inner last part corresponding to the lower part of the shoe; and the splicing and separating mechanism is used for separating or splicing the upper inner last part and the lower inner last part. After an upper and a sole are formed into a finished shoe, the lower inner last part is pushed out towards the outer side of the upper forming mold cavity of the upper forming mold through separation of the lower inner last part and the upper inner last part, a worker can take out the shoe, in order to ensure a better taking-out angle, the inner last structure can be turned over to face the worker, and the work efficiency is improved. After the shoe is taken out, the next shoe can be quickly manufactured, and the operation of opening and locking the upper forming mold is not needed, so that the processing efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of shoe preparation, and in particular to a shoe forming inner last structure, a rubber rain boots forming device and a rubber rain boots forming method. Background Art

[0002] When preparing traditional rubber rain boots, the upper is formed in the upper forming mold and the sole is formed in the sole forming mold, and then the upper and the sole are vulcanized into one, thereby obtaining a finished shoe. After obtaining the finished shoe, since the finished shoe is located on the inner last structure in the upper forming mold, the staff is required to take the finished shoe out of the inner last. In the prior art, the upper forming mold needs to be opened before the finished shoe on the inner last structure in the cavity of the upper forming mold can be removed. When the next finished shoe is to be made, the upper forming mold needs to be closed and matched with the inner last structure before the next finished shoe can be made. This method is cumbersome to operate, and the upper forming mold needs to be repeatedly opened and closed, and the processing efficiency is very low. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art, provide a shoe forming inner last structure, and improve the processing efficiency of shoes.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A shoe forming inner last structure, comprising:

[0006] The inner last body is composed of an upper inner last portion corresponding to the upper part of the shoe and a lower inner last portion corresponding to the lower part of the shoe;

[0007] The splicing and separation mechanism is used to separate or splice the upper inner last portion from the lower inner last portion; after the shoe is formed, the upper inner last portion is separated from the lower inner last portion so that the lower inner last portion is pushed out toward the outside of the shoe upper forming mold cavity of the shoe upper forming mold, thereby facilitating the removal of the shoe from the inner last body.

[0008] Preferably, the splicing and separation mechanism comprises:

[0009] A push-pull rod passes through the upper inner last from the end of the upper inner last, extends into the lower inner last and is fixedly connected to the lower inner last;

[0010] The push-pull driving module is used to drive the push-pull rod to move back and forth, so that the lower inner last part moves back and forth relative to the upper inner last part, and then is assembled with or separated from the upper inner last part.

[0011] Preferably, the lower inner last has a guide slot, and the assembly and separation mechanism further includes a guide rod which is passed through the upper inner last and extends into the guide slot.

[0012] Preferably, the part of the shoe above the ankle is the upper part of the shoe corresponding to the upper inner last, and the part of the shoe below the ankle is the lower part of the shoe corresponding to the lower inner last; the push-pull drive module includes a hydraulic cylinder.

[0013] The present invention also provides a rubber rain boot molding device, comprising an upper molding mold and a shoe molding inner last structure, wherein the upper molding mold has an upper molding mold cavity, and the inner last body of the shoe molding inner last structure is located in the upper molding mold cavity, so that the upper molding mold cavity is divided to form an upper molding space, and the shoe molding inner last structure is the shoe molding inner last structure as described above.

[0014] As a preference, it also includes:

[0015] An upper heating plate, on which the upper forming mold and the shoe forming inner last structure are fixed;

[0016] A lower heating plate, arranged relatively below the upper heating plate;

[0017] A sole forming mold, having a sole forming mold cavity and fixed on the lower heating plate;

[0018] A color separator, which can be moved between the upper molding mold and the sole molding mold, and is molded with the upper molding mold and the sole molding mold to separate the cavity of the upper molding mold and the cavity of the sole mold;

[0019] The lifting drive mechanism is used to drive the upper heating plate and / or the lower heating plate to move upward and downward so that the upper forming mold and the sole forming mold can be molded together or separated.

[0020] Preferably, it also includes a flipping drive mechanism for driving the upper heating plate to flip so that the shoe forming inner last structure faces the staff for removing the shoe last; the lifting drive mechanism is connected to the lower heating plate to drive the lower heating plate to move up and down.

[0021] Preferably, the color isolation plate is provided with an upper rubber injection channel for injecting rubber into the cavity of the upper forming mold, and a sole rubber injection channel for injecting sole rubber into the cavity of the sole mold.

[0022] The present invention also provides a rubber rain boots forming method of the rubber rain boots forming device, comprising the following steps:

[0023] Assembling the upper inner last portion and the lower inner last portion;

[0024] Moving the color isolation plate between the upper molding mold and the sole molding mold, so that the cavity of the upper molding mold and the cavity of the sole molding mold are respectively closed;

[0025] Injecting the upper molding rubber material into the cavity of the upper molding mold, and injecting the sole molding rubber material into the cavity of the sole molding mold, to respectively mold the upper and the sole;

[0026] The color separator is removed, and the upper forming mold and the sole forming mold are molded together, so that the upper and the sole are combined to obtain a finished shoe;

[0027] The sole forming mold is moved out, and the lower inner last is driven to separate from the upper inner last through the splicing and separation mechanism, so that the lower inner last is pushed out toward the outside of the cavity of the upper forming mold, thereby facilitating the removal of the shoe from the inner last body.

[0028] Preferably, the lower inner last portion is driven to separate from the upper inner last portion by the splicing and separation mechanism, comprising:

[0029] First, the upper heating plate is driven to flip through the flip driving mechanism so that the shoe forming inner last structure faces the direction of the staff, and then the lower inner last part is driven to separate from the upper inner last part through the splicing and separation mechanism.

[0030] The beneficial effects of the present invention compared with the prior art are:

[0031] (1) In the present invention, after the upper and the sole are formed into a finished shoe, the lower inner last is separated from the upper inner last so that the lower inner last is pushed out toward the outer side of the cavity of the upper forming mold of the upper forming mold, so that the worker can take out the shoe. In addition, in order to ensure a better taking-out angle, the inner last structure can be turned toward the worker. After the shoe is taken out, the next shoe can be quickly made without opening and locking the upper forming mold, thereby greatly improving the processing efficiency.

[0032] (2) In the present invention, the rubber injection molding of the sole and the upper can be performed simultaneously through the rubber injection molding flow channel on the color isolation plate without affecting each other. After the upper and the sole are formed, the color isolation plate is removed, and the sole molding mold and the upper molding mold are closed under the drive of the driving structure, so that the upper and the sole can be quickly combined, which greatly improves the manufacturing efficiency of the shoes.

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0035] Figure 1 Schematic diagram of the structure of the rubber rain boots forming device (when the upper and the sole are formed separately) in this embodiment.

[0036] Figure 2 It is a schematic structural diagram of the rubber rain boots forming device (when the upper and the sole are formed as one body) in this embodiment.

[0037] Figure 3 It is a schematic structural diagram of the rubber rain boots forming device (after the upper and the sole are formed into finished shoes) in this embodiment.

[0038] Figure 4 It is a schematic diagram of the structure of the rubber rain boots forming device (when the finished shoes are taken off the last) in this embodiment.

[0039] Reference numerals:

[0040] 1. Shoe forming inner last structure;

[0041] 11. Upper inner last; 12. Lower inner last; 13. Push-pull rod; 14. Push-pull drive module; 15. Guide rod;

[0042] 2. Upper forming mold;

[0043] 3. Color separator; 31. Upper rubber injection channel; 32. Outsole rubber injection channel;

[0044] 4. Sole forming mold;

[0045] 5. Upper heating plate;

[0046] 6. Lower heating plate;

[0047] 7. Lifting drive mechanism. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1 to Figure 4 As shown, this embodiment is a shoe forming inner last structure 1, comprising:

[0050] The inner last body is composed of an upper inner last portion 11 corresponding to the upper part of the shoe and a lower inner last portion 12 corresponding to the lower part of the shoe;

[0051] The splicing and separation mechanism is used to separate or splice the upper inner last 11 and the lower inner last 12; after the shoe is formed, the upper inner last 11 and the lower inner last 12 are separated so that the lower inner last 12 is pushed out toward the outside of the shoe upper molding mold cavity of the shoe upper molding mold 2, thereby facilitating the removal of the shoe from the inner last body.

[0052] In this embodiment, the inner last body is set as a split structure, which is divided into an upper inner last part 11 and a lower inner last part 12. When it is necessary to form a shoe, the two are assembled into one, and then the upper is formed, and the formed upper and sole are formed into a finished shoe; when it is necessary to take the formed shoe out of the inner last body, in this embodiment, there is no need to open the upper forming mold 2, only need to separate it from the sole forming mold 4 below, so that there is space for removing the last, and then separate the upper inner last part 11 and the lower inner last part 12, so that the lower inner last part 12 is pushed toward the outside of the upper forming mold cavity of the upper forming mold 2, and then the lower inner last part 12 exits the upper forming mold cavity, so that the staff can take out the shoe.

[0053] In this embodiment, the assembling and separating mechanism may have various structural forms. In one embodiment, the assembling and separating mechanism includes:

[0054] A push-pull rod 13 passes through the upper inner last 11 from the end of the upper inner last 11, extends into the lower inner last 12 and is fixedly connected to the lower inner last 12;

[0055] The push-pull driving module 14 is used to drive the push-pull rod 13 to move back and forth, so that the lower inner last 12 moves back and forth relative to the upper inner last 11 , and then is assembled with or separated from the upper inner last 11 .

[0056] In this embodiment, the push-pull rod 13 can be driven to move by the push-pull driving module 14, and the push-pull rod 13 is connected to the lower inner last 12, so the lower inner last 12 can be pushed and pulled to achieve splicing and separation with the upper inner last 11.

[0057] In order to keep the moving direction stable when the upper inner last 11 and the lower inner last 12 are assembled and separated, a guide structure can be set in this embodiment for guidance. In one embodiment, the lower inner last 12 has a guide slot, and the assembly and separation mechanism also includes a guide rod 15 that passes through the upper inner last 11 and extends into the guide slot.

[0058] In this embodiment, when the push-pull driving module 14 pushes and pulls the lower inner shoe last 12, the guide rod 15 moves back and forth in the guide slot, so that the lower inner shoe last 12 keeps moving back and forth in the axial direction. In addition, the number of guide rods 15 in this embodiment can also be various, and one or more guide rods can be set, and different settings can be made according to needs.

[0059] In this embodiment, the push-pull drive module 14 may have a variety of structural forms. For example, in one embodiment, the portion above the ankle of the shoe is the upper portion of the shoe corresponding to the upper inner last 11, and the portion below the ankle of the shoe is the lower portion of the shoe corresponding to the lower inner last 12; the push-pull drive module 14 includes a hydraulic cylinder.

[0060] In this embodiment, the parts of the shoe corresponding to the upper inner last 11 and the lower inner last 12 can be divided in many ways. In this embodiment, the upper part of the shoe can represent the part above the ankle of the shoe, and the lower part of the shoe is the part below the ankle of the shoe. Therefore, the upper inner last 11 and the lower inner last 12 correspond to the part above the ankle of the shoe and the part below the ankle of the shoe respectively. This method is more conducive to taking off the shoe last.

[0061] The above-mentioned shoe molding inner last structure 1 can be applied to a variety of shoe molding devices, and its application methods are relatively wide. For example, the present invention also provides a rubber rain boot molding device, including an upper molding mold 2 and a shoe molding inner last structure 1. The upper molding mold 2 has an upper molding mold cavity. The inner last body of the shoe molding inner last structure 1 is located in the upper molding mold cavity, so that the upper molding mold cavity is separated to form an upper molding space. The shoe molding inner last structure 1 is the shoe molding inner last structure 1 as described above.

[0062] In one embodiment, it further includes:

[0063] An upper heating plate 5, on which the upper forming mold 2 and the shoe forming inner last structure 1 are fixed;

[0064] A lower heating plate 6 is arranged relatively below the upper heating plate 5;

[0065] A sole forming mold 4, having a sole forming mold cavity and fixed on the lower heating plate 6;

[0066] The color separator 3 can be moved between the upper molding mold 2 and the sole molding mold 4, and molded with the upper molding mold 2 and the sole molding mold 4 to separate the cavity of the upper molding mold and the cavity of the sole mold;

[0067] The lifting drive mechanism 7 is used to drive the upper heating plate 5 and / or the lower heating plate 6 to move up and down so that the upper forming mold 2 and the sole forming mold 4 can be molded together or separated.

[0068] In this embodiment, the upper inner last portion 11 of the shoe forming inner last structure 1 and the push-pull driving module 14 can be fixed on the upper heating plate 5, so that the upper inner last portion 11 can be kept fixed. When the finished shoe needs to be taken out, the color separation plate 3 is removed, and the sole forming mold 4 and the upper forming mold 2 are separated to maintain space, so as to reserve a space for removing the shoe from the last.

[0069] In this embodiment, the lifting drive mechanism 7 has various structural forms, for example, a hydraulic cylinder structure may be used.

[0070] In one embodiment, it also includes a flipping drive mechanism for driving the upper heating plate 5 to flip so that the shoe forming inner last structure 1 faces the direction of the staff for removing the shoe last; the lifting drive mechanism 7 is connected to the lower heating plate 6 to drive the lower heating plate 6 to move up and down.

[0071] In this embodiment, after the upper and the sole are formed, the sole forming mold 4 can be moved downward by the lifting drive mechanism 7 to separate from the upper forming mold 2. Since the sole and the upper have been formed as one, the finished shoe is located on the inner last body at this time, and then the flipping drive mechanism drives the upper heating plate 5 to flip toward the staff, and then flip it upward so that the shoe forming inner last structure 1 faces the staff side. After flipping into place, the staff can take out the finished shoe.

[0072] In this embodiment, the lower heating plate 6 can move in the horizontal direction in addition to being able to move up and down. Specifically, a corresponding moving track can be set according to needs. The color isolation plate 3 can also move in a variety of ways, and a horizontal moving track can be set.

[0073] In one embodiment, the color isolation plate 3 has an upper rubber injection channel 31 for injecting rubber into the cavity of the upper molding mold, and a sole rubber injection channel 32 for injecting sole rubber into the cavity of the sole mold.

[0074] The materials and colors of the upper rubber and the sole rubber are also different. In this embodiment, the upper rubber and the sole rubber can be injected separately through the upper rubber injection channel and the sole rubber injection channel on the color isolation plate 3 without affecting each other.

[0075] There are many specific application modes of the above-mentioned rubber rain boots molding device. For example, this embodiment provides a rubber rain boots molding method of the above-mentioned rubber rain boots molding device, which includes the following steps:

[0076] First, the upper inner last portion 11 and the lower inner last portion 12 are assembled together;

[0077] Second, the color isolation plate 3 is moved between the upper molding mold 2 and the sole molding mold 4, so that the cavity of the upper molding mold and the cavity of the sole mold are respectively closed;

[0078] Third, injecting the upper molding rubber material into the cavity of the upper molding mold, and injecting the sole molding rubber material into the cavity of the sole mold, to respectively mold the upper and the sole;

[0079] Fourth, the color separator 3 is removed, and the upper forming mold 2 and the sole forming mold 4 are molded together so that the upper and the sole are combined to obtain a finished shoe;

[0080] Fifth, the sole forming mold 4 is removed, and the lower inner last 12 is driven to separate from the upper inner last 11 by the splicing and separation mechanism, so that the lower inner last 12 is pushed out toward the outside of the cavity of the upper forming mold, thereby facilitating the removal of the shoe from the inner last body.

[0081] In addition, in one embodiment, when the lower inner last 12 is driven to separate from the upper inner last 11 by the splicing and separating mechanism, the upper heating plate 5 can be first driven to flip by the flipping driving mechanism so that the shoe molding inner last structure 1 is facing the staff, and then the lower inner last 12 is driven to separate from the upper inner last 11 by the splicing and separating mechanism.

[0082] In this embodiment, multiple workstations can be set to work simultaneously. For example, 6 workstations can be set to work for 6 molds at the same time. The rubber injection head can be moved to the injection mold station as needed to perform rubber injection.

[0083] In this embodiment, the mixed rubber can first be made into an infinitely long strip and connected to the screw funnel of the injection head of the equipment, and the coil material can be preheated in advance, and the rubber can be adjusted to the optimal fluidity state, and the injection can be moved to the mold station to be injected and wait for injection.

[0084] As can be seen from the above, in this embodiment, the upper molding mold 2 is the upper mold, the color isolation plate 3 is the middle mold, and the sole molding mold 4 is the lower mold. The inner last structure is divided into two sections. Before the shoes are molded, they need to be assembled as a whole. The middle mold can be moved from the rear of the equipment to the middle of the upper mold and the lower mold, and then the lower mold begins to move. The lower mold is molded into place with the middle mold and the upper mold by the pressure of the oil cylinder. At this time, the middle mold separates the space inside the upper mold from the space inside the lower mold. Among them, the middle mold has two injection holes. At this time, the two rubber injection heads of the equipment can work at the same time, respectively injecting different rubber materials into the lower mold and the upper mold. Generally, the material of the sole is harder than the material of the upper, that is, the upper is softer than the material of the sole. Of course, the rubber formula can also be changed according to different needs to achieve the best state.

[0085] After the upper and lower molds are injected with rubber to form the upper and sole respectively, generally between 20 and 60 seconds of injection, the lower mold moves downward, and after moving into place, the middle mold can be moved to the rear of the equipment, and the lower mold moves upward to close the mold again. At this time, the rubber in the upper mold cavity and the rubber in the lower mold cavity are perfectly integrated for vulcanization. Vulcanization generally takes between 80 and 400 seconds depending on the rubber formula. When the vulcanization is completed, the lower mold moves downward, and the finished shoe has been left in the upper mold cavity. The upper mold flips upward to remove the last, and the sole faces the front of the staff. At this time, the upper half of the inner last (i.e., the upper inner last part 11) does not move, and the oil cylinder above the upper mold begins to push out the lower half of the inner last (i.e., the lower inner last part 12), and the staff can easily take out a pair of complete boots. Repeat all the above operations to make the next finished shoe.

[0086] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A shoe forming inner last structure, characterized in that: include: The inner last body is composed of an upper inner last portion corresponding to the upper part of the shoe and a lower inner last portion corresponding to the lower part of the shoe; The splicing and separation mechanism is used to separate or splice the upper inner last portion from the lower inner last portion; after the shoe is formed, the upper inner last portion is separated from the lower inner last portion so that the lower inner last portion is pushed out toward the outside of the shoe upper forming mold cavity of the shoe upper forming mold, thereby facilitating the removal of the shoe from the inner last body.

2. The shoe forming inner last structure according to claim 1, characterized in that: The splicing and separation mechanism comprises: A push-pull rod passes through the upper inner last from the end of the upper inner last, extends into the lower inner last and is fixedly connected to the lower inner last; The push-pull driving module is used to drive the push-pull rod to move back and forth, so that the lower inner last part moves back and forth relative to the upper inner last part, and then is assembled with or separated from the upper inner last part.

3. The shoe forming inner last structure according to claim 2, characterized in that: The lower inner shoe last is provided with a guide slot hole, and the splicing and separating mechanism further comprises a guide rod which is penetrated through the upper inner shoe last and extends into the guide slot hole.

4. The shoe forming inner last structure according to any one of claims 1 to 3, characterized in that: The part of the shoe above the ankle is the upper part of the shoe corresponding to the upper inner last, and the part of the shoe below the ankle is the lower part of the shoe corresponding to the lower inner last; the push-pull drive module includes a hydraulic cylinder.

5. A rubber rain boot molding device, comprising an upper molding mold and a shoe molding inner last structure, wherein the upper molding mold has an upper molding mold cavity, and the inner last body of the shoe molding inner last structure is located in the upper molding mold cavity, so that the upper molding mold cavity is separated to form an upper molding space, characterized in that: The shoe forming inner last structure is the shoe forming inner last structure as claimed in any one of claims 1 to 4.

6. The shoe rubber rain boots forming device according to claim 5, characterized in that: Also includes: An upper heating plate, on which the upper forming mold and the shoe forming inner last structure are fixed; A lower heating plate, arranged relatively below the upper heating plate; A sole forming mold, having a sole forming mold cavity and fixed on the lower heating plate; A color separator, which can be moved between the upper molding mold and the sole molding mold, and is molded with the upper molding mold and the sole molding mold to separate the cavity of the upper molding mold and the cavity of the sole mold; The lifting drive mechanism is used to drive the upper heating plate and / or the lower heating plate to move upward and downward so that the upper forming mold and the sole forming mold can be molded together or separated.

7. The shoe rubber rain boots forming device according to claim 6, characterized in that: It also includes a flipping drive mechanism for driving the upper heating plate to flip so that the shoe forming inner last structure faces the staff for removing the shoe last; the lifting drive mechanism is connected to the lower heating plate to drive the lower heating plate to move up and down.

8. The shoe rubber rain boots forming device according to claim 7, characterized in that: The color isolation plate is provided with an upper rubber injection channel for injecting rubber into the cavity of the upper forming mold, and a sole rubber injection channel for injecting sole rubber into the cavity of the sole mold.

9. A method for forming rubber rain boots as claimed in claim 1, characterized in that: The following steps are involved: Assembling the upper inner last portion and the lower inner last portion; Moving the color isolation plate between the upper molding mold and the sole molding mold, so that the cavity of the upper molding mold and the cavity of the sole molding mold are respectively closed; Injecting the upper molding rubber material into the cavity of the upper molding mold, and injecting the sole molding rubber material into the cavity of the sole molding mold, to respectively mold the upper and the sole; The color separator is removed, and the upper forming mold and the sole forming mold are molded together, so that the upper and the sole are combined to obtain a finished shoe; The sole forming mold is moved out, and the lower inner last is driven to separate from the upper inner last through the splicing and separation mechanism, so that the lower inner last is pushed out toward the outside of the cavity of the upper forming mold, thereby facilitating the removal of the shoe from the inner last body.

10. The rubber rain boots molding method according to claim 9, characterized in that: The lower inner last portion is driven to separate from the upper inner last portion by the splicing and separation mechanism, comprising: First, the upper heating plate is driven to flip through the flip driving mechanism so that the shoe forming inner last structure faces the direction of the staff, and then the lower inner last part is driven to separate from the upper inner last part through the splicing and separation mechanism.

Images