Production mold for Goodyear sewing injection shoes
By combining Goodyear stitching injection molding molds with fixture structures and PU/TPU materials, the weight and rigidity issues of traditional Goodyear shoes have been solved, achieving comfort, lightweight design, and cost reduction, while improving shoe manufacturing efficiency and environmental performance.
Patent Information
- Application Number
- CN202422798179.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Traditional Goodyear stitched rubber sole shoes are heavy, hard, have poor breathability, and are expensive. Injection molding processes have low production efficiency and low material utilization, making it difficult to combine the advantages of both to manufacture comfortable and economical shoes.
The Goodyear welt injection molding mold is used to produce shoes. It combines a first clamp, a second clamp, and a bottom mold. The midsole, outer edge strip, and upper are formed by liquid injection molding. The clamp structure prevents the outer edge strip from deforming. Combined with PU or TPU materials, the Goodyear welt and injection molding processes are integrated.
It improves the comfort and lightweight nature of shoes, reduces production costs and material usage, simplifies the shoe manufacturing process, and enhances product quality and environmental performance.
Smart Images
Figure CN223520055U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the shoemaking field, and particularly relates to a hush puppies sewing injection shoe production mould. BACKGROUND
[0002] The advantages of traditional hush puppies sewing rubber sole shoes include: high durability, because sewing is completed manually, and the sewing part is very strong; good waterproof performance, because the sewing part is specially treated, and water penetration can be effectively prevented; elegant appearance, and the manually sewed sewing part has unique beauty. However, the shoes also have the following disadvantages: relatively heavy weight, because the density of the rubber sole is relatively large; large hardness of the rubber sole, and poor air permeability, which is not suitable for long-time wearing in a hot and humid environment, otherwise, problems such as glue opening are prone to occur; the shoes made by the traditional hush puppies process are usually high in price, because the manual production cost is large;
[0003] Compared with the traditional hush puppies sewing rubber sole shoes, the PU or TPU injection process has the following advantages: relatively high production efficiency, because injection molding can realize rapid circulation; better product consistency, because the injection process can be accurately controlled; higher material utilization rate, because the injection process can reduce material waste; and stronger bonding strength, because the PU or TPU material can fully penetrate into the tiny gaps of the bonded material in the injection process. If the hush puppies sewing series products and the injection process are combined, the advantages of the two are absorbed, and the products are improved, more comfortable products can be manufactured. SUMMARY
[0004] In view of the disadvantages of the traditional hush puppies sewing rubber sole shoes and the advantages of the injection process, the utility model provides a hush puppies sewing injection shoe production mould.
[0005] The utility model discloses a hush puppies sewing injection shoe production mould, which comprises a first clamp, a second clamp for clamping a shoe tree and a bottom mould, the upper ends of the first clamp and the second clamp are hingedly installed on an upper mould seat, the bottom mould is located below the first clamp and the second clamp, the first clamp comprises a first clamping rod and a second clamping rod, the second clamp is located between the first clamping rod and the second clamping rod, the lower end of the first clamping rod is connected with a first sub-opening steel ring, the lower end of the second clamping rod is connected with a second sub-opening steel ring, the first sub-opening steel ring and the second sub-opening steel ring are combined to form a sub-opening steel ring, the lower ends of the first clamping rod and the second clamping rod are opened and closed left and right to drive the first sub-opening steel ring and the second sub-opening steel ring to be opened and closed; a step for placing an outer edge strip is designed on the upper end of the side wall of the bottom mould, and the sub-opening steel ring is located on the step at the upper end of the side wall of the bottom mould and used for fixing the outer edge strip.
[0006] The upper die base lower end is connected with left and right two linkage plates respectively, the linkage plates all include rotating plates and fixed plates, the fixed plates are fixedly connected with the upper die base, the rotating plates are rotatably connected with the upper die base, the first clamping rod or the second clamping rod is fixedly connected on the rotating plate, the fixed plate is located in front of the rotating plate, an arc-shaped limiting sliding groove is arranged on the fixed plate, two transmission rods are arranged between the two linkage plates, one end of the two transmission rods is hingedly connected with each other, the other end is respectively hingedly connected with the two rotating plates, the hinge shaft A slides in the arc-shaped limiting sliding groove, the hinge shaft B hingedly connected with each other of the two transmission rods is driven to make lifting movement by the driving mechanism, the two transmission rods are driven to slide in the respective limiting sliding grooves, so that the rotating plate drives the first clamping rod and the second clamping rod to realize opening and closing.
[0007] The hinge shaft B is provided with a control rod, the driving mechanism is connected with the control rod to lift, and the driving mechanism is installed on the upper die base.
[0008] The driving mechanism is a hydraulic cylinder, a gas cylinder or an electric push rod.
[0009] The bottom die is an integrated die.
[0010] The step has a width of 3mm and a height of 2mm.
[0011] The production method of the Goodyear welt injection shoe by using the above mold comprises the following steps.
[0012] S1, connecting the outer edge strip, the midsole and the upper to form a strip-edged upper;
[0013] S2, sleeving the strip-edged upper on the shoe tree;
[0014] S3, hanging the shoe tree with the sleeved strip-edged upper on the second clamp, injecting the liquid injection material into the injection cavity of the bottom die, combining the first clamp, then moving the upper die base downward to combine with the bottom die, placing the outer edge strip on the step at the upper end of the side wall of the bottom die, fixing the outer edge strip above the outer edge strip by the sub-port steel ring of the first clamp, and forming the large sole integrally connected with the midsole, the outer edge strip (5) and the upper after the liquid injection material foaming;
[0015] S4, lifting the upper die base, taking out the shoe tree and the Goodyear welt injection shoe from the bottom die, then opening the first clamp left and right, and taking out the formed Goodyear welt injection shoe from the second clamp.
[0016] The liquid injection material is polyurethane, polyvinyl chloride or thermoplastic polyurethane elastomer rubber.
[0017] The utility model discloses a production mould of the stitchdown injection shoe, and the upper with the along strip is sleeved on the shoe tree, the shoe tree is hung from the upper portion on the second clamp, and the along strip is fixed through the sub -mouth steel ring of the bottom of the first clamp, so that the along strip is avoided to be lifted in the process of liquid injection plastics foaming, and the liquid injection plastics foaming process is integrally connected with the midsole, the along strip and the upper. The sub -mouth steel ring is connected in the bottom of the first clamp, and the left and right opening and closing structure sub -mouth steel ring and the along strip are more close, and the along strip is more convenient to fix, can effectively prevent the along strip from being bent and deformed, improves the quality of shoe finished product, and reduces the rate of defective products.
[0018] The stitchdown process is combined with the injection process, the deficiencies of the traditional stitchdown shoes in weight, hardness and comfort are overcome, the wearing comfort and lightness are improved, the manufacturing process is simplified, the operation difficulty is reduced, the shoemaking process is more simple and easy, the use of consumables is reduced, especially the use amount of the core, the outsole and the glue, the environmental protection performance is obviously improved, the use of consumables is reduced, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the structure schematic diagram of the production mould of the stitchdown injection shoe.
[0020] Figure 2 It is the front view of the first clamp.
[0021] Figure 3 It is the side view of the first clamp.
[0022] Figure 4 It is the top view of the first clamp.
[0023] Figure 5 It is the front view of the bottom mould.
[0024] Figure 6 It is the side view of the bottom mould.
[0025] Figure 7 It is the top view of the bottom mould.
[0026] Figure 8 It is the structure schematic diagram of the shoe tree.
[0027] Figure 9 It is the structure schematic diagram of the upper with the along strip.
[0028] Figure 10 It is the stitchdown injection shoe before and after trimming.
[0029] Figure 11 It is the structure schematic diagram of the first clamp opening and closing state.
[0030] Figure 12 It is the side view of the first clamp.
[0031] Figure 13 is a structural schematic diagram of the production process of the Goodyear welt injection shoes. DETAILED DESCRIPTION
[0032] The utility model will be further explained in connection with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. After reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the utility model.
[0033] As shown in Figure 1 , a Goodyear welt injection shoe production mold comprises a first clamp 1, a second clamp 2 clamping a shoe tree and a bottom die 3, the upper end of the first clamp 1 and the second clamp 2 is hingedly installed on an upper die seat 4, and the bottom die 3 is located below the first clamp 1 and the second clamp 2, as shown in Figures 2-4 , the first clamp 1 comprises a first clamping rod 11 and a second clamping rod 12, the second clamp 2 is located between the first clamping rod 11 and the second clamping rod 12, the lower end of the first clamping rod 11 is connected with a first sub-mouth steel ring 131, the lower end of the second clamping rod 12 is connected with a second sub-mouth steel ring 132, the first sub-mouth steel ring 131 and the second sub-mouth steel ring 132 are combined to form a sub-mouth steel ring 13, the lower end of the first clamping rod 11 and the second clamping rod 12 opens and closes left and right, thereby driving the first sub-mouth steel ring 131 and the second sub-mouth steel ring 132 to open and close; as shown in Figures 5-7 , a step 31 for placing an outer edge strip 5 is designed on the upper end of the side wall of the bottom die 3, the width of the step 31 is preferably 3 mm, and the height is 2 mm, and the sub-mouth steel ring 13 is located on the step 31 on the upper end of the side wall of the bottom die for fixing the outer edge strip 5.
[0034] The Goodyear welt injection shoe production mold disclosed by the utility model sets the edge strip shoe upper on the shoe tree, hangs the shoe tree from the upper part on the second clamp, fixes the outer edge strip through the sub-mouth steel ring at the bottom of the first clamp, avoids that the edge strip is lifted up in the process of foaming the liquid injection plastic, and integrally connects the midsole, the outer edge strip and the upper in the process of foaming the liquid injection plastic. The sub-mouth steel ring and the outer edge strip are more matched and more convenient for fixing the outer edge strip through the structure of connecting the sub-mouth steel ring at the bottom of the first clamp and opening and closing left and right. The width of the sub-mouth steel ring is slightly larger than the width of the outer edge strip. Compared with the upper and lower mold structure, it is more convenient to observe the deformation of the outer edge strip, can effectively prevent the outer edge strip from being bent and deformed, improves the quality of the shoe product, and reduces the rate of defective products.
[0035] Further preferred, the bottom die 3 is an integrated mold without a side bottom die. The shoe outsole formed by the integrated mold structure is smooth and flat without a splicing seam, and the appearance is more beautiful, avoiding the need to modify the shoe outsole. According to different shoe types produced, the bottom die can also be provided in a split structure.
[0036] AsFigure 11 and Figure 12 As shown in FIG. 1, the lower end of the upper die holder 4 is connected with two linkage plates 41, the first linkage plate 411 includes a first rotating plate 421 and a first fixed plate 431, the first fixed plate 431 is fixedly connected with the upper die holder 4, the first rotating plate 421 is rotatably connected with the upper die holder 4, the first clamping rod 11 is fixedly connected on the first rotating plate 421, the first fixed plate 431 is located in front of the first rotating plate 421, and an arc-shaped limiting sliding groove 44 is arranged on the first fixed plate 431; the second linkage plate 412 includes a second rotating plate 422 and a second fixed plate 432, the second fixed plate 432 is fixedly connected with the upper die holder 4, the second rotating plate 422 is rotatably connected with the upper die holder 4, the second clamping rod 12 is fixedly connected on the second rotating plate 422, the second fixed plate 432 is located in front of the second rotating plate 422, and an arc-shaped limiting sliding groove 44 is arranged on the second fixed plate 432; two transmission rods 45 are arranged between the two linkage plates 41, the first transmission rod 451 and the second transmission rod 452 are hingedly connected with each other, the other end of the first transmission rod 451 is hingedly connected with the first rotating plate 421, the hinge shaft is A, the other end of the second transmission rod 452 is hingedly connected with the second rotating plate 422, the hinge shaft is A', the hinge shaft A and the hinge shaft A' slide in the respective arc-shaped limiting sliding grooves 44, the hinge shaft B of the first transmission rod 451 and the second transmission rod 452 hingedly connected with each other is driven to move up and down by the driving mechanism, and the first transmission rod 451 and the second transmission rod 452 slide in the respective limiting sliding grooves 44, so that the first clamping rod 11 and the second clamping rod 12 are driven to open and close by the first rotating plate 421 and the second rotating plate 422.
[0037] Further, the hinge shaft B is provided with a control rod 46, the driving mechanism drives the control rod 46 to move up and down, and the driving mechanism is installed on the upper die holder 4. The driving mechanism is preferably a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
[0038] As shown in FIG. 2, the production method of the Goodyear welt injection shoe by using the above-mentioned mold includes the following steps, Figure 13
[0039] S1, connecting the outer edge strip, the insole and the vamp to form a shoe upper with edge strip;
[0040] S2, as shown in FIG. 3, Figure 8 and Figure 9 S3, as shown in FIG. 4, the shoe upper with edge strip 7 is sleeved on the shoe tree 6;
[0041] S3, the sleeve set along the strip shoe upper 7 shoe tree 6 hanging on the second clamp 2, the liquid injection into the injection cavity 32 of the bottom die 3, the first clamp 1 is combined, and then the upper die 4 moves downward, and the bottom die 3 is combined, the outer edge strip 5 is placed on the step 31 at the upper end of the bottom die wall, the first clamp 1 is fixed on the outer edge strip 5 above the outer edge strip, so as to avoid the strip being lifted in the process of the liquid injection being foamed, the shoe tree 6 and the strip shoe upper 7 are controlled by the clamp, and the downward pressure is added until the bottom die 3 is combined completely, and the liquid injection is foamed to form the large sole which is integrally connected with the midsole, the outer edge strip 5 and the upper;
[0042] S4, the upper die 4 rises, and the shoe tree and the stitch and injection shoe are taken out from the bottom die 3, then the first clamp 1 is opened left and right, and the formed stitch and injection shoe is taken out from the second clamp 2, as shown in a, then the formed stitch and injection shoe is polished and modified at the edge of the strip to obtain the product as shown in b. Figure 10 Figure 10 b.
[0043] The liquid injection is polyurethane (PU), thermoplastic polyurethane elastomer rubber (TPU) or polyvinyl chloride (PVC).
[0044] It should be particularly pointed out that, Figure 11 and Figure 13 The dashed line in the first clamp and the transmission rod represents another state of the schematic diagram, that is, the first clamp is opened, and the solid line represents the closed state of the first clamp.
[0045] The stitch and injection process is combined with the PU injection process, which overcomes the shortcomings of the traditional stitch and injection shoe in weight, hardness and comfort, makes the wearing comfortable and light, simplifies the manufacturing process, reduces the operation difficulty, and the shoe manufacturing process is more simple and easy, and the use of consumables is reduced, especially the use of core filling, large sole and glue, so that the environmental protection performance is significantly improved, the use of consumables is reduced, and the production cost is reduced.
[0046] The preferred embodiments of the utility model are described above, and it should be pointed out that for those skilled in the art, without departing from the overall concept of the utility model, a number of changes and improvements can be made, which should be regarded as the protection range of the utility model.
Claims
1. A production mold for a Goodyear welted injection shoe, characterized by: The first clamp (1), the second clamp (2) and the bottom die (3) are included. The upper end of the first clamp (1) and the second clamp (2) is hingedly installed on the upper die seat (4), and the bottom die (3) is located below the first clamp (1) and the second clamp (2). The first clamp (1) includes a first clamping rod (11) and a second clamping rod (12), and the second clamp (2) is located between the first clamping rod (11) and the second clamping rod (12). The lower end of the first clamping rod (11) is connected with a first sub-opening steel ring (131), and the lower end of the second clamping rod (12) is connected with a second sub-opening steel ring (132). The first sub-opening steel ring (131) and the second sub-opening steel ring (132) are combined to form a sub-opening steel ring (13). The lower end of the first clamping rod (11) and the second clamping rod (12) moves left and right to drive the first sub-opening steel ring (131) and the second sub-opening steel ring (132) to open and close. The upper end of the side wall of the bottom die (3) is designed with a step (31) for placing an outer edge strip (5), and the sub-opening steel ring (13) is located on the step (31) at the upper end of the side wall of the bottom die for fixing the outer edge strip (5).
2. The production mold for the Goodyear welted injection shoe according to claim 1, wherein: The lower end of the upper die seat (4) is connected with two left and right linkage discs (41). Each linkage disc (41) includes a rotating disc (42) and a fixed disc (43). The fixed disc (43) is fixedly connected with the upper die seat (4), and the rotating disc (42) is rotatably connected with the upper die seat (4). The rotating disc (42) is fixedly connected with the first clamping rod (11) or the second clamping rod (12). The fixed disc (43) is located in front of the rotating disc (42), and an arc-shaped limiting sliding groove (44) is arranged on the fixed disc (43). Two transmission rods (45) are arranged between the two linkage discs (41). One end of the two transmission rods (45) is hingedly connected with each other, and the other end is hingedly connected with the two rotating discs (42), respectively. The hinge shaft A slides in the arc-shaped limiting sliding groove (44). The hinge shaft B hingedly connected with the two transmission rods (45) is driven by a driving mechanism to move up and down, thereby driving the two transmission rods (45) to slide in the respective limiting sliding grooves (44), so that the rotating disc (42) drives the first clamping rod (11) and the second clamping rod (12) to open and close.
3. The production mold for the Goodyear welted injection shoe according to claim 1, wherein: A control rod (46) is installed on the hinge shaft B, and a driving mechanism is connected with the control rod (46) to lift and lower the control rod (46). The driving mechanism is installed on the upper die seat (4).
4. The production mold for the Goodyear welted injection shoe according to claim 3, wherein: The driving mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
5. The production mold for the solid-gore stitched injection shoe according to claim 1, wherein: The bottom die (3) is an integrated die.
6. The production mold for the solid-gore stitched injection shoe according to claim 1, wherein: The step (31) has a width of 3mm and a height of 2mm.