Foaming shoe injection molding machine

Abstract

The utility model discloses a foaming footwear injection molding machine which comprises a base, a lower mold and an upper mold, two auxiliary demolding mechanisms are embedded in the lower mold, two clamping plates are fixedly installed on one side of the upper mold, and each auxiliary demolding mechanism comprises a push plate, a fixing plate, a first guide column and a second guide column. The ends of the first guide column and the second guide column are in movable contact, and the straight lines where the axes of the first guide column and the second guide column are located are located in the same vertical plane. According to the foaming shoe injection molding machine, the two auxiliary demolding mechanisms and the two clamping plates which are in one-to-one correspondence with the two mold cavities are arranged in the lower mold and one side of the upper mold correspondingly, when the upper mold and the lower mold are closed, a foaming material is subjected to injection molding in the mold cavities, and when the upper mold and the lower mold are separated, the two clamping plates are separated from the two auxiliary demolding mechanisms correspondingly; the two auxiliary demolding mechanisms can be triggered to act, a formed product is automatically ejected out, and demolding convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe production and processing, in particular to a foaming shoe injection molding machine. Background Art

[0002] Pre-plasticized foamed shoes are a type of footwear made using pre-plasticized foaming technology. Pre-plasticized foaming technology is a technology that forms a foam body with a microporous structure by heating and expanding plastic particles in a mold. This technology allows footwear products to maintain a certain strength and durability while having better lightness and comfort.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] Foaming materials generally have a certain degree of adhesion, and they are easy to adhere to the mold surface during the molding process. At the same time, the foaming material will shrink during the cooling and curing process, and uneven shrinkage often occurs, causing the product to fit tightly to the mold, resulting in difficulty in demolding.

[0005] Therefore, the above technical problems need to be solved. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a foaming shoe injection molding machine, which solves the problem that the existing foaming shoe injection molding machine is prone to mold release difficulties.

[0007] In order to solve the above technical problems, the basic technical solution proposed by the utility model is:

[0008] The foaming shoe injection molding machine comprises a base, a lower mold fixedly mounted on the top of the base, and an upper mold lifted and mounted above the lower mold. Two auxiliary demoulding mechanisms corresponding to two mold cavities are embedded in the lower mold, and two clamping plates corresponding to the two auxiliary demoulding mechanisms are fixedly mounted on one side of the upper mold.

[0009] The auxiliary demoulding mechanism includes a push plate built into the mold cavity of the lower mold and a fixed plate embedded in one side of the lower mold, and a first guide column and a second guide column movably embedded in the lower mold along the vertical direction and the horizontal direction respectively, the ends of the first guide column and the second guide column are movably in contact, and the straight line where the axes of the two are located is in the same vertical plane, the first guide column is coaxially installed at the bottom of the push plate, and the outer end of the second guide column is coaxially provided with a connecting rod integrally connected thereto, the outer end of the connecting rod vertically penetrates the fixed plate and is fixedly connected to a tapered block, and a return spring is sleeved on the outside of the connecting rod and located between the second guide column and the fixed plate.

[0010] A U-shaped groove for accommodating a connecting rod is provided at the bottom of the card plate, bosses are provided on the outer side of the card plate and on both sides of the U-shaped groove, and slope structures are provided at the bottoms of the two bosses.

[0011] Preferably, the rear of the two mold cavities of the lower mold are provided with through holes for the first guide pillar to fit in, the two through holes are distributed in the vertical direction and the tops of both are coaxially equipped with limit sleeves, and a ventilation gap is reserved at the bottom of the lower mold. Among them, the through holes set through the lower mold, on the one hand, facilitate the assembly of the first guide pillar inside the lower mold, and at the same time, facilitate subsequent maintenance operations, and on the other hand, with the reserved ventilation gap, a heat dissipation path can be formed, which helps to improve the heat dissipation efficiency. The setting of the limit sleeve is used to limit the first guide pillar to prevent the first guide pillar from detaching from the lower mold.

[0012] Preferably, the periphery of the top of the two through holes is provided with a groove seat integrally connected to the lower mold, and the periphery of the bottom of the push plate is provided with a ring clip adapted to the groove seat. The groove seat and the ring clip that are assembled and clamped together can ensure the sealing between the push plate and the mold cavity to prevent the foaming material from leaking through the through hole during the injection molding process.

[0013] Preferably, the bottom of the push plate is coaxially provided with a threaded hole for assembling the top end of the first guide column, and the bottom end of the first guide column is provided with a hexagonal hole. Under the limiting action of the limiting sleeve, the first guide column is coaxially assembled to the bottom of the push plate through a threaded connection, and the operator can disassemble and assemble the first guide column through the through hole. Preferably, the hexagonal hole is provided at the bottom end of the first guide column to facilitate the threaded disassembly and assembly of the first guide column.

[0014] The beneficial effects of the utility model are:

[0015] The technical solution of the utility model is to provide two auxiliary demoulding mechanisms and two clamping plates corresponding to the two mold cavities in the lower mold and on one side of the upper mold respectively. When the upper mold and the lower mold are closed, the foaming material is injection molded in the mold cavity. When the upper mold and the lower mold are separated, the two clamping plates are respectively separated from the two auxiliary demoulding mechanisms, which can trigger the two auxiliary demoulding mechanisms to move and automatically eject the molded product, thereby improving the convenience of demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the lower mold of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the auxiliary demoulding mechanism of the utility model;

[0019] Figure 4 This is a structural schematic diagram of the utility model card board;

[0020] Figure 5 It is a cross-sectional structural schematic diagram of the lower mold of the utility model;

[0021] Description of reference numerals:

[0022] 100. Base;

[0023] 200, lower die;

[0024] 210, through hole; 220, limit sleeve; 230, ventilation gap; 240, groove seat;

[0025] 300. Upper mold;

[0026] 400, auxiliary demoulding mechanism;

[0027] 410, push plate; 420, fixed plate; 430, first guide post; 440, second guide post; 450, connecting rod; 460, conical block; 470, return spring;

[0028] 4110, ring card; 4120, threaded hole;

[0029] 4310, hexagon socket;

[0030] 500, pallet;

[0031] 510, U-shaped groove; 520, boss; 530, slope structure. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-5The utility model provides a technical solution: a foaming shoe injection molding machine, comprising a base 100, a lower mold 200 fixedly mounted on the top thereof, and an upper mold 300 lifted and mounted above the lower mold 200, two auxiliary demoulding mechanisms 400 corresponding to two mold cavities are embedded in the lower mold 200, and two clamping plates 500 corresponding to the two auxiliary demoulding mechanisms 400 are fixedly mounted on one side of the upper mold 300, the auxiliary demoulding mechanism 400 comprises a push plate 410 built into the mold cavity of the lower mold 200 and a fixed plate 420 embedded on one side of the lower mold 200, as well as a first guide column 430 and a second guide column 440 movably embedded in the lower mold 200 along the vertical direction and along the horizontal direction, respectively, the first guide column 430 The first guide column 430 is coaxially mounted on the bottom of the push plate 410, and the outer end of the second guide column 440 is coaxially provided with a connecting rod 450 integrally connected thereto, and the outer end of the connecting rod 450 vertically penetrates the fixed plate 420 and is fixedly connected with a conical block 460, and a return spring 470 is sleeved on the outside of the connecting rod 450 and located between the second guide column 440 and the fixed plate 420, and a U-shaped groove 510 for accommodating the connecting rod 450 is provided at the bottom of the card plate 500, and bosses 520 are provided on the outer surface of the card plate 500 and on both sides of the U-shaped groove 510, and slope structures 530 are provided at the bottom of the two bosses 520.

[0034] Based on the above-mentioned structural setting, the foaming shoe injection molding machine is composed of a base 100, a lower mold 200, an upper mold 300, two auxiliary demoulding mechanisms 400 and two clamping plates 500, wherein the base 100 provides structural support for the erection of the lower mold 200, the upper mold 300 is erected by an external hydraulic mechanism, and can be opened and closed with the lower mold 200, and the two auxiliary demoulding mechanisms 400 are embedded in the lower mold 200 and correspond to the two mold cavities respectively, and are used for the two The two card plates 500 respectively correspond to the two auxiliary demoulding mechanisms 400 and are trigger switches for the auxiliary demoulding mechanisms 400 to operate. Specifically, during operation, when the upper mold 300 and the lower mold 200 are closed, the card plate 500 is clamped between the conical block 460 and the fixed plate 420, so that the inner end of the second guide column 440 does not contact the inner end of the first guide column 430. At this time, the push plate 410 does not move, and the injection molding machine pushes the foaming material After injection molding in the mold cavity, the upper mold 300 moves upward and separates from the lower mold 200, while the clamping plate 500 separates from the auxiliary demoulding mechanism 400, and the conical block 460 releases the limit. Under the action of the return spring 470, the second guide post 440 moves inward, and the inner end of the second guide post 440 contacts the inner end of the first guide post 430, and squeezes the first guide post 430 to move upward, and synchronously drives the push plate 410 to move upward, so as to push the molded product out of the mold cavity. The foam shoe injection molding machine, through Two auxiliary demolding mechanisms 400 and two clamping plates 500 corresponding to the two mold cavities are respectively provided inside the lower mold 200 and on one side of the upper mold 300. When the upper mold 300 and the lower mold 200 are closed, the foaming material is injection molded in the mold cavity. When the upper mold 300 and the lower mold 200 are separated, the two clamping plates 500 are respectively separated from the two auxiliary demolding mechanisms 400, which can trigger the two auxiliary demolding mechanisms 400 to move and automatically eject the molded product, thereby improving the convenience of demolding.

[0035] Furthermore, the rear of the two mold cavities of the lower mold 200 are provided with through holes 210 for accommodating the first guide column 430. The two through holes 210 are distributed in the vertical direction and the tops of both are coaxially assembled with limit sleeves 220. A ventilation gap 230 is reserved at the bottom of the lower mold 200.

[0036] Furthermore, a groove seat 240 integrally connected to the lower mold 200 is provided on the periphery of the top of the two through holes 210 , and a ring clamp 4110 adapted to the groove seat 240 is provided on the periphery of the bottom of the push plate 410 .

[0037] Furthermore, a threaded hole 4120 for assembling the top end of the first guide column 430 is coaxially formed at the bottom of the push plate 410 , and a hexagonal hole 4310 is formed at the bottom end of the first guide column 430 .

[0038] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. Foaming shoe injection molding machine, characterized by: The invention comprises a base (100), a lower mold (200) fixedly mounted on the top of the base, and an upper mold (300) mounted on a lifting frame above the lower mold (200), wherein two auxiliary demoulding mechanisms (400) corresponding to two mold cavities are embedded in the lower mold (200), and two clamping plates (500) corresponding to the two auxiliary demoulding mechanisms (400) are fixedly mounted on one side of the upper mold (300); The auxiliary demoulding mechanism (400) comprises a push plate (410) built into the mold cavity of the lower mold (200) and a fixed plate (420) embedded in one side of the lower mold (200), and a first guide column (430) and a second guide column (440) movably embedded in the lower mold (200) along the vertical direction and along the horizontal direction respectively, the ends of the first guide column (430) and the second guide column (440) are movably contacted, and the straight lines where the axes of the two are located are in the same vertical plane, the first guide column (430) is coaxially installed on the bottom of the push plate (410), the outer end of the second guide column (440) is coaxially provided with a connecting rod (450) integrally connected thereto, the outer end of the connecting rod (450) vertically penetrates the fixed plate (420) and is fixedly connected to a conical block (460), and a return spring (470) is sleeved on the outside of the connecting rod (450) and located between the second guide column (440) and the fixed plate (420); A U-shaped groove (510) for accommodating the connecting rod (450) is provided at the bottom of the card plate (500), bosses (520) are provided on the outer surface of the card plate (500) and on both sides of the U-shaped groove (510), and the bottoms of the two bosses (520) are provided with slope structures (530).

2. The foaming shoe injection molding machine according to claim 1, characterized in that: The rear parts of the two mold cavities of the lower mold (200) are each provided with a through hole (210) for accommodating the first guide column (430), the two through holes (210) are both distributed in the vertical direction and the tops of both are coaxially equipped with a limiting sleeve (220), and a ventilation gap (230) is reserved at the bottom of the lower mold (200).

3. The foaming shoe injection molding machine according to claim 2, characterized in that: The peripheries of the tops of the two through holes (210) are each provided with a groove seat (240) integrally connected to the lower mold (200), and the periphery of the bottom of the push plate (410) is provided with a ring clip (4110) adapted to the groove seat (240).

4. The foaming shoe injection molding machine according to claim 1, characterized in that: The bottom of the push plate (410) is coaxially provided with a threaded hole (4120) for assembling the top end of the first guide column (430), and the bottom end of the first guide column (430) is provided with a hexagonal hole (4310).

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