A glove mold and a method of manufacturing the same

Abstract

The application belongs to the technical field of glove mold, and relates to a glove mold and a preparation method of the glove mold. The glove mold comprises a main body and a thumb part, both of which are made of stainless steel. The main body has a palm part, and the palm part is provided with an index finger part, a middle finger part, a ring finger part and a little finger part. The thumb part is fixed between the palm part by welding, and is arranged in a curved manner. The preparation method of the glove mold comprises the following steps: S1, injecting the main body and the thumb part of the glove mold by stainless steel liquid injection molding; and S2, welding the thumb part of the glove mold on the palm part of the main body to form the glove mold. The application can improve the product quality of the glove mold with curved fingers.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of glove molds and relates to a glove mold and a preparation method of the glove mold. BACKGROUND

[0002] Disposable PVC, latex, and nitrile gloves are protective consumables in the medical, electronic, and health industries, and their consumption is huge. The method for producing these gloves is as follows: first, a hand model is made of a material that is both heat-resistant and heat-conductive; second, a thin layer of glue (such as polyvinyl chloride) is applied to the surface of the hand mold; third, the hand mold with the applied glue is placed in an oven for heating and baking; and finally, after the glue on the hand mold is completely plasticized, the glove is removed.

[0003] Glove molds can be divided into flat-palm glove molds and curved-finger glove molds according to the use scenarios. For example, disposable medical gloves, beauty gloves, and colloid industrial gloves require curved-finger glove molds.

[0004] In the prior art, ceramic or aluminum alloy is usually used to make curved-finger glove molds.

[0005] When a curved-finger glove mold is made of ceramic material, ceramic integrated molding, glazing, and sintering are adopted. This condition has the following disadvantages: poor dimensional accuracy, a wall thickness of 4-8 mm, poor ceramic thermal conductivity, slow heating and cooling, causing excessive heat energy loss in the production line, a short service life of 3-8 months, a fragile production process, poor shock resistance, a relatively heavy weight, and a thick thickness of the high polymer product.

[0006] When a curved-finger glove mold is made of aluminum alloy material, casting is generally adopted. Aluminum alloy is not resistant to acid, alkali, and chloride corrosion. Since the glove production line has acid, alkali, and chlorine washing processes, it cannot be directly used for the production of immersion gloves. The surface sand holes of the aluminum alloy cannot be solved and need to be subsequently sprayed. Surface spraying, such as paint spraying and Teflon, is easily peeled off under the cold and hot impact of high and low temperatures in the glove production process, which pollutes the glue tank, and therefore cannot be used.

[0007] In summary, the existing curved-finger glove mold products still have certain defects. SUMMARY

[0008] In order to improve the product quality of the curved-finger glove mold, the application provides a glove mold and a preparation method of the glove mold.

[0009] In a first aspect, the application provides a glove mold, which adopts the following technical solution:

[0010] A glove mold comprises a main body and a thumb part, both of which are made of stainless steel, the main body has a palm part, the palm part is provided with an index finger part, a middle finger part, a ring finger part and a little finger part, the thumb part is fixed with the palm part by welding, and the thumb part is bent.

[0011] By adopting the technical scheme, the glove mold is split into the main body and the thumb part, the bent thumb part is fixed with the palm part of the main body by welding, and the industry bottleneck that the existing glove mold with bent fingers cannot be made of stainless steel is overcome. The main body and the thumb part are both made of stainless steel, the stainless steel material is a metal material with corrosion resistance, high strength and good formability, and has high thermal conductivity, electrical conductivity and thermal conductivity. The product produced by stainless steel has stable product size, good heat conduction, corrosion resistance, and the plate can be made into various thicknesses. These characteristics are exactly suitable for the production requirements of the high-molecular material infiltration film product industry, and can improve the product quality of the glove mold with bent fingers.

[0012] In a second aspect, the application provides a glove mold preparation method, which adopts the following technical scheme:

[0013] A glove mold preparation method for manufacturing the above-mentioned glove mold comprises the following steps:

[0014] S1: forming the main body and the thumb part of the glove mold by liquid injection molding of stainless steel;

[0015] S2: welding the thumb part of the glove mold to the palm part of the main body to form the glove mold.

[0016] By adopting the technical scheme, the glove mold is split into the main body and the thumb part, the bent thumb part is fixed with the palm part of the main body by welding, the processing difficulty is reduced, and the industry bottleneck that the existing glove mold with bent fingers cannot be made of stainless steel is overcome.

[0017] Preferably, the liquid injection molding of stainless steel in the step S1 comprises the following steps:

[0018] S11: closing the upper die and the lower die of the injection mold to form an outer cavity, and the outer cavity and the mold core in the outer cavity combine to form a cavity;

[0019] S22: injecting the molten stainless steel liquid into the cavity until the cavity is filled;

[0020] S23: further pressing the upper die;

[0021] S24: opening the mold to take out the semi-finished product and the mold core.

[0022] Through the above technical scheme, after the upper die and the lower die are closed to form the cavity, the molten stainless steel liquid can be formed in the cavity, the upper die is further pressed, the surface quality of the product is good under the further pressure, internal defects of the product can be eliminated, and finally the mold is opened to take out the semi-finished product, so that the semi-finished product processing of the glove mold is completed.

[0023] Preferably, the injection mold of the step S11 is further provided with a feeding port, a feeding groove, a flash well and a flash groove, the feeding port is communicated with the cavity of the injection mold through the feeding groove, and the cavity of the injection mold is communicated with the flash well through the flash groove.

[0024] Through the above technical scheme, the molten stainless steel liquid enters the cavity of the injection mold through the feeding port, the feeding groove can make the molten stainless steel liquid quickly enter the cavity and accelerate the filling fullness of the molten stainless steel liquid, and the excess metal liquid is discharged to the flash well through the flash groove, so that the excess molten stainless steel liquid is accommodated.

[0025] Preferably, the mold core comprises a sliding part and a body part, the body part comprises a palm body, the sliding part is provided with a finger body, the sliding part and the body part are in sliding connection, so that the body part and the sliding part can slide relative to each other along the length direction of the mold core, and a connecting mechanism capable of connecting or separating the body part and the sliding part is arranged between the body part and the sliding part.

[0026] Through the above technical scheme, the sliding part and the body part are in sliding connection, and the palm body and the finger body are detachably connected, so that the mold can be smoothly demolded after forming.

[0027] Preferably, the sliding part and the body part are in sliding connection through key groove cooperation.

[0028] Through the above technical scheme, the sliding part and the body part are in key groove cooperation, so that the sliding part and the body part are in sliding cooperation, demolding is convenient, and processing is easy.

[0029] Preferably, one end of the sliding part close to the palm body is provided with a connecting groove, the groove opening of the connecting groove is provided with a limiting block, a channel is formed between the limiting block and the side wall of the connecting groove, the connecting mechanism comprises an "L"-shaped connecting block arranged at one end of the palm body close to the sliding part, the connecting block can slide into the connecting groove through the channel, and the connecting block is in clamping cooperation with the limiting block through rotation.

[0030] Through the above technical scheme, the palm body is in detachable connection with the connecting groove of the sliding part through the connecting block, so that the mold can be smoothly demolded.

[0031] Preferably, the step S2 further comprises the following steps: removing the flash and the sprue of the semi-finished product, and polishing.

[0032] By adopting the above technical scheme, the glove mold is polished, and the product quality of the glove mold can be improved.

[0033] Preferably, the material of the upper die and the lower die is boronized.

[0034] By adopting the above technical scheme, the material of the upper die and the lower die is boronized, and the surface of the material of the upper die and the lower die is provided with FeB+Fe2B organization, so that the service life of the upper die and the lower die is improved by 2-3 times.

[0035] In summary, the present application has at least one of the following beneficial technical effects:

[0036] 1. The curved finger glove mold made of stainless steel has high product quality, because stainless steel is a kind of metal material with corrosion resistance, high strength, good formability, high thermal conductivity, electrical conductivity and thermal conductivity. The product produced by stainless steel has stable size, good thermal conductivity, corrosion resistance, and the plate can be made into various thicknesses. These characteristics meet the production requirements of high-molecular material infiltration film product industry, and can improve the product quality of the curved finger glove mold. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a structure schematic diagram of the glove mold of the embodiment of the present application.

[0038] Figure 2 is an exploded view of the glove mold of the embodiment of the present application.

[0039] Figure 3 is a process flowchart of the embodiment of the present application.

[0040] Figure 4 is a structure schematic diagram of the injection mold of the embodiment of the present application.

[0041] Figure 5 is an internal schematic diagram of the injection mold of the embodiment of the present application.

[0042] Figure 6 is a structure schematic diagram of the injection molding machine of the embodiment of the present application.

[0043] Figure 7 is a structure schematic diagram of the mold core of the embodiment of the present application.

[0044] Figure 8 is a key groove cooperation structure schematic diagram of the sliding part and the body part of the embodiment of the present application.

[0045] Figure 9 is a sectional view of the mold core of the embodiment of the present application when the mold core is in demolding.

[0046] Figure 10 is a sectional view of the mold core of the embodiment of the present application when the mold core is in demolding.

[0047] Explanation of reference numerals in the attached drawings: 1. Main body; 11. Palm; 12. Index finger; 13. Middle finger; 14. Ring finger; 15. Little finger; 2. Thumb; 3. Injection mold; 31. Upper mold; 32. Lower mold; 33. Inlet; 34. Inlet groove; 35. Overflow well; 36. Overflow groove; 37. Cavity; 41. Injection piston; 42. Moving mold base; 43. Stationary mold base; 44. Core pulling mechanism; 45. Stripping mechanism; 5. Mold core; 51. Sliding part; 52. Main body; 521. Palm body; 5211. Connecting block; 522. Finger body; 5221. Connecting groove; 5222. Limiting block. Detailed Implementation

[0048] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0049] like Figure 1 , Figure 2 As shown, the glove mold includes a main body 1 and a thumb part 2, both made of stainless steel.

[0050] In this embodiment, the main body 1 and the thumb part 2 are preferably made of 304 or 316L stainless steel.

[0051] Specifically, the main body 1 has a palm part 11, on which an index finger part 12, a middle finger part 13, a ring finger part 14 and a little finger part 15 are provided. The thumb part 2 is fixed to the palm part 11 by welding, and the thumb part 2 is bent.

[0052] Preferably, the index finger portion 12, middle finger portion 13, ring finger portion 14, and little finger portion 15 are all bent.

[0053] As an alternative, partial bending can be selected according to actual needs.

[0054] The main body 1 adopts a hollow thin-walled structure with a wall thickness of 0.8-2.0mm.

[0055] The working principle of this embodiment is as follows: Both the main body 1 and the thumb part 2 are made of stainless steel, which has good thermal conductivity and corrosion resistance. The sheet material can be made of various thicknesses. These characteristics are just right to meet the production requirements of the polymer material impregnation film-forming product industry, and can improve the product quality of glove molds for bending fingers.

[0056] like Figure 3 As shown, this embodiment also provides a method for preparing a glove mold, used to manufacture the above-mentioned glove mold, including the following steps:

[0057] S1: The main body 1 and thumb part 2 of the glove mold are formed by liquid injection molding of stainless steel;

[0058] S2: welding the thumb part 2 of the glove mold to the palm part 11 of the main body 1 to form the glove mold.

[0059] As preferred, the step S1 comprises the following steps:

[0060] S11: closing the upper die 31 and the lower die 32 of the injection mold 3 by the injection machine to form an outer cavity, the outer cavity and the mold core 5 in the outer cavity combining to form a mold cavity 37;

[0061] In this embodiment, the upper die 31 and the lower die 32 are made of H13 die steel, and the heat treatment is boronizing treatment. LSB-1 granular boronizing agent is selected.

[0062] The boronizing process is as follows:

[0063] The temperature is 890 degrees, and the time is 8 hours.

[0064] The boronizing depth is 0.05-0.08, and the surface hardness is HV1600-1800.

[0065] After boronizing, isothermal quenching is performed, and the quenching oil is heated to 200 degrees.

[0066] Then it is put into a 280-degree salt bath for isothermal 3 hours and air cooling.

[0067] Finally, isothermal tempering is performed at 480 degrees for 4 hours, and oil cooling is performed to room temperature.

[0068] In this way, the upper die 31 and the lower die 32 are formed on the surface FeB+Fe2B organization, and the mold life is increased by 2-3 times.

[0069] S22: injecting the molten stainless steel liquid into the mold cavity 37 until the mold cavity 37 is filled;

[0070] As shown in Figure 4 、 Figure 5 、 Figure 6 , the mold cavity 37 corresponds to the shape of the product, and graphite liquid is sprayed on the surface of the mold cavity 37 before the mold is closed.

[0071] Specifically, the injection mold 3 is also provided with a feeding port 33, a feeding groove 34, an overflow well 35 and an overflow groove 36. The feeding port 33 is communicated with the mold cavity 37 of the injection mold 3 through the feeding groove 34. The feeding port 33 is a channel for the molten stainless steel liquid to enter the injection mold 3. During injection, the molten stainless steel liquid is poured into the equipment cold chamber, and then the stainless steel liquid is injected into the mold cavity 37 through the feeding port 33 by the injection piston 41. The injection speed is 1 m / s to 3 m / s. The liquid enters along the feeding groove 34, fills the mold cavity 37, and the mold cavity 37 of the injection mold 3 is communicated with the overflow well 35 through the overflow groove 36. The excess metal liquid is discharged to the overflow well 35 through the overflow groove 36, which contains the excess molten stainless steel liquid.

[0072] In this embodiment, there are three feed troughs 34. Molten stainless steel liquid enters the cavity 37 through the three feed troughs 34. The three feed troughs 34 ensure that the liquid can quickly enter the cavity 37 while accelerating the filling fullness of the molten stainless steel liquid.

[0073] like Figure 6 As shown, the injection molding machine is equipped with a moving mold base 42 and a stationary mold base 43 corresponding to the upper mold 31 and the lower mold 32, as well as a core-pulling mechanism 44 for removing the mold core 5 and a material-removing mechanism 45 for removing the material.

[0074] S23: The upper mold 31 presses down further; under further pressure, the product has better surface quality and can eliminate internal defects.

[0075] S24: Open the mold, remove the mold core 5 and the semi-finished product; then remove the flash and gate of the semi-finished product, and obtain the product after grinding and polishing.

[0076] like Figure 7 , Figure 8 As shown, the mold core 5 includes a sliding part 51 and a body part 52. The body part 52 includes a palm body 521. The sliding part 51 is provided with a finger body 522. The sliding part 51 and the body part 52 are slidably connected, so that the body part 52 and the sliding part 52 can slide relative to each other along the length direction of the mold core 5. A connecting mechanism is provided between the body part 52 and the sliding part 52 to enable the two to be connected or separated.

[0077] In this embodiment, the sliding part 51 and the main body part 52 are slidably connected by a keyway, preferably in the form of a dovetail groove.

[0078] like Figure 9 , Figure 10 As shown, a connecting groove 5221 is provided at one end of the sliding part 51 near the palm body 521. A limiting block 5222 is provided at the opening of the connecting groove 5221. A channel is provided between the limiting block 5222 and the side wall of the connecting groove 5221. The connecting mechanism includes an "L"-shaped connecting block 5211 provided at one end of the palm body 521 near the sliding part 51. The connecting block 5211 can slide into the connecting groove 5221 through the channel and form a snap-fit ​​with the limiting block 5222 by rotation.

[0079] like Figure 9 As shown, when the mold core 5 is in the working state, the sliding part 51 is in contact with the body part 52, there is a distance between the limiting block 5222 and the snap-fit ​​end of the connecting block 5211, and the snap-fit ​​end of the connecting block 5211 abuts against the bottom of the connecting groove 5221; as Figure 10As shown, when demolding is required, the body part 52 moves a certain distance relative to the sliding part 51, so that the body part 52 has a certain space with the sliding part 51, the sliding part 51 rotates with the product, the limiting block 5222 of the body part 52 moves to the position aligned with the channel, and the sliding part 51 and the body part 52 can be separated by sliding, so that the body part 52 can slide out relative to the product to smoothly demold.

[0080] The working principle of the embodiment is as follows: the glove mold is divided into a main body 1 and a thumb part 2, and then is formed by welding, so as to reduce the processing difficulty and improve the quality of the glove mold.

[0081] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A method for preparing a glove mold, used to manufacture the above-mentioned glove mold, the glove mold comprising a main body (1) and a thumb portion (2) both made of stainless steel, the main body (1) having a palm portion (11), the palm portion (11) being provided with an index finger portion (12), a middle finger portion (13), a ring finger portion (14) and a little finger portion (15), the thumb portion (2) being fixed to the palm portion (11) by welding, the thumb portion (2) being bent, characterized in that, Includes the following steps: S1: The main body (1) and thumb (2) of the glove mold are formed by liquid injection molding of stainless steel. S2: Weld the thumb part (2) of the glove mold to the palm part (11) of the main body (1) to form the glove mold; the stainless steel liquid injection molding in step S1 includes the following steps: S11: The upper mold (31) and lower mold (32) of the injection mold (3) are closed by the injection machine to form an outer cavity, and the outer cavity and the mold core (5) in the outer cavity are combined to form a cavity (37). S22: Inject molten stainless steel liquid into the cavity (37) until the cavity (37) is filled. S23: The upper mold (31) is pressed down further; S24: Open the mold and remove the semi-finished product and mold core (5); The injection mold (3) in step S11 is also provided with a feed port (33), a feed groove (34), an overflow well (35) and an overflow groove (36). The feed port (33) is connected to the cavity (37) of the injection mold (3) through the feed groove (34). The cavity (37) of the injection mold (3) is connected to the overflow well (35) through the overflow groove (36). The mold core (5) includes a sliding part (51) and a body part (52). The body part (52) includes a palm body (521). The sliding part (51) is provided with a finger body (522). The sliding part (51) and the body part (52) are slidably connected, so that the body part (52) and the sliding part (51) can slide relative to each other along the length direction of the mold core (5). A connecting mechanism that can connect or separate the two is provided between the body part (52) and the sliding part (51).

2. The method for preparing a glove mold according to claim 1, characterized in that, The sliding part (51) and the main body part (52) are slidably connected by a keyway.

3. The method for preparing a glove mold according to claim 2, characterized in that, The sliding part (51) has a connecting groove (5221) at one end near the palm body (521). The groove opening of the connecting groove (5221) has a limiting block (5222). There is a channel between the limiting block (5222) and the side wall of the connecting groove (5221). The connecting mechanism includes an "L"-shaped connecting block (5211) located at one end of the palm body (521) near the sliding part (51). The connecting block (5211) can slide into the connecting groove (5221) through the channel and form a snap-fit ​​with the limiting block (5222) by rotation.

4. The method for preparing a glove mold according to claim 3, characterized in that, Step S2 also includes the following steps: removing the flash and gate of the semi-finished product and polishing it.

5. The method for preparing a glove mold according to claim 4, characterized in that, The materials of the upper mold (31) and the lower mold (32) are subjected to boronizing heat treatment.

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