Spring resin product forming die

Abstract

The utility model discloses a spring resin product forming die, and belongs to the technical field of wire drawing forming. The spring resin product forming die comprises an upper die and a lower die, a spring resin product is clamped between the upper die and the lower die, and the spring resin product is shaped; an upper die groove with a certain shape is formed in the upper die, a plurality of upper water through holes are formed in the upper die groove, and the upper water through holes are communicated with the outside; the lower mold is provided with a lower mold groove with a certain shape, and a plurality of lower water through holes are formed in the lower mold groove and communicated with the outside; and positioning devices are arranged on the upper mold and the lower mold. According to the utility model, hot water is immersed into the mold to heat and shape a product in the mold, so that the problem of poor appearance of the product caused by direct heating of traditional equipment is avoided, the produced product can keep good appearance, the yield is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wire drawing molding technology, and more specifically, to a molding die for spring resin products. Background Technology

[0002] Every tool and product used in daily production and life, from large machine tool bases and housings to small screws, buttons, and the casings of various household appliances, is closely related to molds. The shape of the mold determines the appearance of these products, and the processing quality and precision of the mold determine the quality of these products. Due to the differences in materials, appearance, specifications, and uses of various products, molds are divided into non-plastic molds such as casting molds, forging molds, die-casting molds, and stamping molds, as well as plastic molds.

[0003] With the continuous improvement of engineering plastics in terms of strength and precision, the application range of plastic products is constantly expanding, and the proportion of plastic products is increasing rapidly. A well-designed plastic part can often replace multiple traditional metal parts. As the usage of plastic products continues to rise, the application of plastic molds is also growing accordingly.

[0004] Depending on the molding method, plastic molds mainly include injection molding molds, extrusion molding molds, vacuum forming molds, and high-density polystyrene molding molds. Among them, plastic vacuum forming molds refer to the molds used in vacuum forming production. They are molds that use plastic sheets or plates as raw materials to form certain relatively simple plastic products. The principle is to use vacuum forming or compressed air forming methods to deform the plastic sheet or plate fixed on the concave or convex mold when heated and softened, so that it adheres to the cavity of the mold to obtain the desired product. They are mainly used in the production of packaging products for daily necessities, food, and toys.

[0005] Spring resin is a type of resin product with an elastic structure. After molding, the gaps between the resin particles give the product elasticity and resilience, allowing it to deform under stress and return to its original shape when the pressure is removed. In daily life, it is commonly used in cushions, pillows, and other applications. After spring resin is manufactured, it often requires molds to fix its shape. Current mold-setting methods typically use thermoforming, but resin has a low melting point. Using traditional thermoforming equipment to mold spring resin can easily damage the product, increasing the defect rate. Summary of the Invention

[0006] 1. Technical problem to be solved by the utility model

[0007] In view of the problem that traditional spring resin molding equipment can easily damage resin products, this utility model provides a molding die that uses hot water to shape the product, thereby avoiding damage during the product shaping process.

[0008] 2. Technical Solution

[0009] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0010] This utility model discloses a molding die for a spring resin product, comprising an upper die and a lower die. The spring resin product is sandwiched between the upper die and the lower die to shape the spring resin product. The upper die has an upper mold groove of a certain shape, and multiple upper water passage holes are provided in the upper mold groove, which are connected to the outside. The lower die has a lower mold groove of a certain shape, and multiple lower water passage holes are provided in the lower mold groove, which are connected to the outside. Positioning devices are provided on the upper die and the lower die.

[0011] Furthermore, the positioning device includes positioning pins and positioning holes; multiple positioning pins are disposed on the edge of the lower mold groove, and multiple positioning holes are disposed on the edge of the upper mold groove; the positioning pins are inserted into the positioning holes to position the upper mold and the lower mold.

[0012] Furthermore, the upper mold includes an upper template and an upper module fixed on the upper template, and the upper mold groove is formed on the upper module; the upper module has an upper water inlet hole on its side, and the upper water inlet hole is connected to the upper water passage hole.

[0013] Furthermore, the upper module has outwardly extending upper ear plates on opposite sides, and the upper module is fixed to the upper template of the upper mold through the upper ear plates.

[0014] Furthermore, the lower mold includes a lower template and a lower module fixed on the lower template; the lower mold groove is formed on the lower module; a lower water inlet hole is formed on the side of the lower template, and the lower water inlet hole is connected to the lower water passage hole.

[0015] Furthermore, the lower module has outwardly extending lower ear plates on opposite sides, and the lower module is fixed to the lower template by the lower ear plates.

[0016] Furthermore, the upper module is provided with multiple protruding positioning blocks at its four corners, which cooperate with the multiple positioning slots provided at the four corners of the lower module to position the upper and lower modules.

[0017] Furthermore, both the upper and lower modules have rectangular cross-sections, with a protruding positioning block at each of the four corners of the upper module and a positioning groove at each of the four corners of the lower module.

[0018] Furthermore, the upper template has multiple upper fixing holes, and fixing rods are installed in the upper fixing holes.

[0019] Furthermore, a cylinder fixing block is provided in the middle of the upper template, and the cylinder is installed on the cylinder fixing block to drive the upper mold to move; multiple lower fixing holes are opened on the lower template to fix the lower mold on the base.

[0020] 3. Beneficial effects

[0021] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0022] (1) In view of the fact that the existing spring resin molding process directly uses hot pressing equipment to hot press the product, which easily leads to damage to the product edge and poor product appearance, this utility model provides a spring resin product molding mold. Hot water is immersed into the mold to heat and shape the product inside the mold, avoiding the problem of poor product appearance caused by direct heating of traditional equipment. This allows the produced products to maintain a good appearance, improves the yield, and reduces production costs.

[0023] (2) A spring resin product molding die of the present invention has a hollow module set on the upper and lower molds, and a mold groove of product shape opened on the module. At the same time, multiple water passage holes are opened in the mold groove and connected to the cavity inside the module. Through the water inlet hole set on the side of the module, hot water from the outside can directly enter the mold groove. Hot water is simultaneously introduced into the upper and lower mold grooves, which can heat the product from the upper and lower sides at the same time, thereby quickly thermoforming the product.

[0024] (3) The spring resin product molding die of this utility model is provided with positioning pins and positioning holes on the edge of the mold groove. First, it can position the product. When the product is placed in the mold groove, the positioning pin will fix the position of the product and avoid product deformation caused by product movement. Second, it can position the upper and lower molds and avoid misalignment of the upper and lower molds.

[0025] (4) The spring resin product molding die of this utility model has positioning blocks and positioning grooves at the four corners of the upper and lower modules, and positioning pins and positioning holes to further position the upper and lower molds, so as to ensure the accuracy of the position of the upper and lower molds when shaping the product.

[0026] (5) The spring resin product molding mold of this utility model has an upper module and a lower module that can be detached and installed on the mold. When it is necessary to change the shape of the product, the upper and lower modules can be removed and replaced with modules of other shapes, which is convenient and quick to replace. Attached Figure Description

[0027] Figure 1This is a schematic diagram showing the state of the upper and lower molds of this utility model when they are separated;

[0028] Figure 2 This is a schematic diagram of the upper mold in this utility model;

[0029] Figure 3 This is a schematic diagram of the lower mold in this utility model.

[0030] Explanation of the labels in the diagram:

[0031] 1. Upper mold; 11. Fixing rod; 12. Upper fixing hole; 13. Upper template; 14. Cylinder fixing block; 15. Upper module; 16. Upper mold groove; 161. Upper water passage hole; 17. Positioning hole; 18. Positioning block; 19. Upper ear plate; 191. Upper ear plate hole; 110. Upper water inlet hole;

[0032] 2. Lower mold; 21. Lower template; 211. Lower fixing hole; 22. Lower module; 221. Lower ear plate; 222. Lower ear plate hole; 23. Positioning groove; 24. Lower mold groove; 241. Lower water passage hole; 25. Positioning pin; 26. Lower water inlet hole. Detailed Implementation

[0033] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0034] Example

[0035] Combination Figure 1-3 This embodiment of a spring resin product molding die includes an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 clamp the spring resin product between them for shaping. This embodiment of a spring resin product molding die utilizes hot water immersion inside the mold to heat and shape the product inside, avoiding the problem of poor product appearance caused by direct heating in traditional equipment. This allows the produced products to maintain a good appearance, improves the yield rate, and reduces production costs.

[0036] For details, please refer to Figure 2 In this embodiment, the upper mold 1 includes the following parts: an upper template 13, an upper module 15 fixed to one side of the upper template 13, and a cylinder fixed to the other side of the upper template 13. The upper template 13 is generally rectangular, with an upper fixing hole 12 at each of its four corners. A fixing rod 11 is installed in the upper fixing hole 12, and the fixing rod 11 is connected to the cylinder. The piston rod of the cylinder is also connected to the upper template 13 through a cylinder fixing block 14 located in the middle of the upper template 13. The cylinder drives the upper template 13 to move through the piston, thereby driving the upper mold 1 to move up and down.

[0037] In this embodiment, the upper module 15 is detachably mounted on the upper template 13. Specifically, upper ear plates 19 are provided on opposite sides of the upper module 15, and the upper module 15 is fixed to the upper template 13 of the upper mold 1 by the upper ear plates 19. The upper ear plates 19 have upper ear plate holes 191, and screws pass through the upper ear plate holes 191 to detachably connect the upper module 15 and the upper template 13.

[0038] In this embodiment, the upper module 15 is hollow and has an upper mold groove 16 of a certain shape. The upper mold groove 16 has multiple upper water passage holes 161, which are connected to the cavity inside the upper module 15. The upper module 15 has an upper water inlet hole 110 on its side, which is also connected to the cavity inside the upper module 15. Thus, the upper mold groove 16 is connected to the outside through the upper water inlet hole 110 and the upper water passage holes 161.

[0039] See Figure 3 In this embodiment, the lower mold 2 includes a lower template 21 and a lower module 22 fixed on the lower template 21. The lower module 22 has outwardly extending lower ear plates 221 on opposite sides, and the lower module 22 is fixed to the lower template 21 via the lower ear plates 221. Lower ear plate holes 222 are formed on the lower ear plates 221, and screws pass through the lower ear plate holes 222 to detachably connect the lower template 21 and the lower module 22.

[0040] In this embodiment, the lower module 22 is also hollow, with a lower mold groove 24 of a certain shape formed thereon. Multiple lower water inlets 241 are provided within the lower mold groove 24, communicating with the cavity inside the lower module 22. A lower water inlet 26 is provided on the side of the lower template 21, also communicating with the cavity inside the lower module 22. Thus, the lower mold groove 24 communicates with the outside world through the lower water inlet 26 and the lower water inlets 241. This embodiment uses hollow modules on the upper and lower molds, with product-shaped mold grooves formed on the modules. Multiple water inlets are provided within the mold grooves, communicating with the cavity inside the modules. Through the water inlets on the side of the modules, hot water from the outside can directly enter the mold grooves. Hot water simultaneously flows into both the upper and lower mold grooves, heating the product from both sides simultaneously, thereby quickly thermoforming the product.

[0041] In this embodiment, multiple positioning devices are provided on the upper and lower molds. Each positioning device includes positioning pins 25 and positioning holes 17. Multiple positioning pins 25 are located on the edge of the lower mold groove 24, and multiple positioning holes 17 are located on the edge of the upper mold groove 16. The positioning pins 25 are inserted into the positioning holes 17 to position the upper mold 1 and the lower mold 2. Simultaneously, multiple protruding positioning blocks 18 are provided at the four corners of the upper module 15, which cooperate with the multiple positioning grooves 23 provided at the four corners of the lower module 22 to position the upper module 15 and the lower module 22. Specifically, both the upper module 15 and the lower module 22 have rectangular cross-sections. Each of the four corners of the upper module 15 has a protruding positioning block 18, and each of the four corners of the lower module 22 has a positioning groove 23. This embodiment provides positioning pins 25 and positioning holes 17 at the edge of the mold groove for two purposes: first, to position the product; when the product is placed in the mold groove, the positioning pins 25 fix the product's position, preventing product deformation due to movement; and second, to position the upper and lower molds, preventing misalignment. Positioning blocks 18 and positioning grooves 23 are set at the four corners of the upper and lower modules, and positioning pins 25 and positioning holes 17 are used to further position the upper and lower molds to ensure the accuracy of the position of the upper and lower molds when shaping the product.

[0042] In this embodiment, the lower template 21 has multiple lower fixing holes 211 to fix the lower mold 2 onto the base.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A spring resin product molding mold comprising an upper mold (1) and a lower mold (2) which sandwich a spring resin product between them to shape the spring resin product, characterized in that, The upper die (1) is provided with an upper die groove (16) with a certain shape, a plurality of upper water through holes (161) are arranged in the upper die groove (16), and the upper water through holes (161) are communicated with the outside; the lower die (2) is provided with a lower die groove (24) with a certain shape, a plurality of lower water through holes (241) are arranged in the lower die groove (24), and the lower water through holes (241) are communicated with the outside; the upper die (1) and the lower die (2) are provided with a positioning device.

2. The spring resin product molding mold according to claim 1, wherein The positioning device comprises positioning pins (25) and positioning holes (17); a plurality of positioning pins (25) are arranged at the edge of the lower die groove (24), and a plurality of positioning holes (17) are arranged at the edge of the upper die groove (16); the positioning pins (25) are inserted into the positioning holes (17) to position the upper die (1) and the lower die (2).

3. The spring resin product molding mold according to claim 1, wherein The upper die (1) comprises an upper die plate (13) and an upper die block (15) fixed on the upper die plate (13), and the upper die groove (16) is arranged on the upper die block (15); an upper water inlet hole (110) is arranged on the side edge of the upper die block (15), and the upper water inlet hole (110) is communicated with the upper water through hole (161).

4. The spring resin product molding mold according to claim 3, wherein Opposite sides of the upper die block (15) are provided with outwardly extending upper ear plates (19), and the upper die block (15) is fixed on the upper die plate (13) of the upper die (1) through the upper ear plates (19).

5. The spring resin product molding mold according to claim 4, wherein The lower die (2) comprises a lower die plate (21) and a lower die block (22) fixed on the lower die plate (21); the lower die groove (24) is arranged on the lower die block (22); a lower water inlet hole (26) is arranged on the side edge of the lower die plate (21), and the lower water inlet hole (26) is communicated with the lower water through hole (241).

6. The spring resin product molding mold according to claim 5, wherein Opposite sides of the lower die block (22) are provided with outwardly extending lower ear plates (221), and the lower die block (22) is fixed on the lower die plate (21) through the lower ear plates (221).

7. A spring resin product molding mold according to claim 5 or 6, wherein The upper die block (15) is further provided with a plurality of protruding positioning blocks (18) at four corners, and the lower die block (22) is provided with a plurality of positioning grooves (23) at four corners, so as to position the upper die block (15) and the lower die block (22).

8. The spring resin product molding mold according to claim 7, wherein The upper die block (15) and the lower die block (22) are both rectangular in cross section, one protruding positioning block (18) is arranged at each of the four corners of the upper die block (15), and one positioning groove (23) is arranged at each of the four corners of the lower die block (22).

9. The spring resin product molding mold according to claim 8, wherein A plurality of upper fixing holes (12) are arranged on the upper die plate (13), and a fixing rod (11) is arranged in the upper fixing hole (12).

10. The spring resin product molding mold according to claim 9, wherein A cylinder fixing block (14) is further arranged in the middle of the upper die plate (13), a cylinder is arranged on the cylinder fixing block (14), and the cylinder drives the upper die (1) to move; a plurality of lower fixing holes (211) are arranged on the lower die plate (21), and the lower die (2) is fixed on the base through the lower fixing holes (211).

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