Glove mold and preparation method thereof

Abstract

The invention belongs to the technical field of glove molds, 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 which are made of stainless steel, the main body is provided with a palm part, an index finger part, a middle finger part, a ring finger part and a little finger part are arranged on the palm part, the thumb part and the palm part are fixed through welding, and the thumb part is bent. The preparation method of the glove mold comprises the following steps that S1, the main body and the thumb part of the glove mold are formed through stainless steel liquid injection; and S2, welding the thumb part of the glove mold to the palm part of the main body to form the glove mold. The product quality of the glove mold for bending the fingers can be improved.

Description

Technical Field

[0001] The present application belongs to the technical field of glove molds, and relates to a glove mold and a method for preparing the glove mold. Background Art

[0002] Disposable PVC, latex, and nitrile gloves are protective consumables in the medical, electronic, and health industries, and their consumption is huge. The method of producing these gloves is: 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 model; then the glued hand model is placed in an oven for heating and baking; finally, after the glue on the hand model is plasticized, it is taken off to form a glove.

[0003] Glove molds can be divided into flat palm glove molds and bent finger glove molds according to the usage scenarios. For example, disposable medical gloves, beauty gloves, colloidal industrial protective gloves, etc., require bent finger glove molds.

[0004] In the prior art, ceramics or aluminum alloys are usually used to make glove molds for curved fingers.

[0005] When using ceramic materials to make curved finger glove molds, ceramic one-piece molding, glazing, and sintering are used. This situation has the following disadvantages: poor dimensional accuracy, wall thickness is too thick 4-8 ​​mm; ceramic thermal conductivity is poor, heating and cooling are slow, resulting in excessive heat energy loss in online production; short life cycle, generally 3-8 months; production process is fragile, poor seismic performance; heavy weight; polymer products cannot be too thin.

[0006] When aluminum alloy is used to make a glove mold with curved fingers, casting is generally used. Aluminum alloy is not resistant to acid, alkali and chloride ion corrosion. Because the glove production line has acid, alkali and chlorine washing processes, it cannot be directly used in the production of wetted gloves; aluminum alloy casting cannot solve the surface sand holes, and subsequent surface spraying is required; surface spraying such as spray paint, Teflon, etc., these film layers are easily peeled off under the hot and cold shock of the constant switching of high and low temperatures during the glove production process, contaminating the rubber tank, so they cannot be used.

[0007] In summary, the product quality of existing curved finger glove molds still has certain defects. Summary of the invention

[0008] In order to improve the product quality of a glove mold with bent fingers, the present application provides a glove mold and a method for preparing the glove mold.

[0009] In the first aspect, the present application provides a glove mold, which adopts the following technical solution: A glove mold comprises a main body and a thumb part both made of stainless steel, wherein the main body has a palm part, an index finger part, a middle finger part, a ring finger part and a little finger part are arranged on the palm part, the thumb part is fixed to the palm part by welding, and the thumb part is arranged in a bent manner.

[0010] By adopting the above technical solution, the glove mold is split into the main body and the thumb part, and the bent thumb part is welded and fixed to the palm part of the main body, which overcomes the industry bottleneck that the existing bent finger glove mold cannot be made of stainless steel. The main body and the thumb part are both made of stainless steel, which is a corrosion-resistant, high-strength, and well-formed metal material with high thermal conductivity, electrical conductivity, and thermal conductivity. Products made of stainless steel have stable dimensions, good thermal conductivity, and corrosion resistance. The plate can be made of various thicknesses. These characteristics just meet the production requirements of the polymer material infiltration film product industry and can improve the product quality of bent finger glove molds.

[0011] In a second aspect, the present application provides a method for preparing a glove mold, which adopts the following technical solution: A method for preparing a glove mold, used for making the above-mentioned glove mold, comprises the following steps: S1: The main body and thumb of the glove mold are molded by stainless steel liquid injection; S2: Welding the thumb portion of the glove mold to the palm portion of the main body to form the glove mold.

[0012] By adopting the above technical solution, the glove mold is split into a main body and a thumb part, and the bent thumb part is welded and fixed to the palm part of the main body, thereby reducing the processing difficulty and overcoming the industry bottleneck that the existing bent finger glove molds cannot be made of stainless steel.

[0013] Preferably, the stainless steel liquid injection molding in step S1 comprises the following steps: S11: The upper mold and the lower mold of the injection mold are closed by an injection machine to form an outer cavity, and the outer cavity and the mold core in the outer cavity are combined to form a mold cavity; S22: injecting molten stainless steel liquid into the cavity until the cavity is filled; S23: the upper mold is further pressed downward; S24: Open the mold and take out the semi-finished product and the mold core.

[0014] By adopting the above technical scheme, after the upper mold and the lower mold are closed to form a cavity, the molten stainless steel liquid can be formed in the cavity, and the upper mold is further pressed down. Under further pressure, the surface quality of the product is good and the internal defects of the product can be eliminated. Finally, the mold is opened to take out the semi-finished product, completing the semi-finished product processing of the glove mold.

[0015] Preferably, the injection mold of step S11 is also provided with a feed port, a feed trough, an overflow well and an overflow trough, the feed port is connected with the cavity of the injection mold through the feed trough, and the cavity of the injection mold is connected with the overflow well through the overflow trough.

[0016] By adopting the above technical solution, the molten stainless steel liquid enters the cavity of the injection mold through the feed port, and the feed trough can allow the molten stainless steel liquid to quickly enter the cavity, while accelerating the filling fullness of the molten stainless steel liquid. The excess metal liquid is discharged to the overflow well through the overflow trough to accommodate the excess molten stainless steel liquid.

[0017] Preferably, the mold core includes a sliding part and a main body part, the main body part includes a palm body, the sliding part is provided with a finger body, the sliding part is slidably connected to the main body part, so that the main body part and the sliding part can slide relative to each other along the length direction of the mold core, and a connecting mechanism is provided between the main body part and the sliding part to enable the two to be connected or separated.

[0018] By adopting the above technical solution, the sliding part is slidably connected to the main body, and the palm body and the finger body are detachably connected, ensuring smooth demoulding after molding.

[0019] Preferably, the sliding portion and the main body portion are slidably connected via a keyway.

[0020] By adopting the above technical solution, the sliding part cooperates with the keyway of the main body to achieve sliding cooperation, which is convenient for demoulding and easy for processing.

[0021] Preferably, a connecting groove is provided at one end of the sliding portion close to the palm body, a limit block is provided at the notch position of the connecting groove, a channel is provided between the limit block and the side wall of the connecting groove, and the connecting mechanism includes an "L"-shaped connecting block arranged at one end of the palm body close to the sliding portion, the connecting block can slide into the connecting groove through the channel, and cooperate with the limit block through rotation to form a snap-in connection.

[0022] By adopting the above technical solution, the palm body cooperates with the connecting groove of the sliding part through the connecting block to achieve a detachable connection, which is convenient for smooth demoulding.

[0023] Preferably, the step S2 also includes the following steps: removing the flash and gate of the semi-finished product, and grinding and polishing.

[0024] By adopting the above technical solution, the glove mold is ground and polished, thereby improving the product quality of the glove mold.

[0025] Preferably, the materials of the upper mold and the lower mold are subjected to boronizing heat treatment.

[0026] By adopting the above technical solution, after the materials of the upper and lower molds are subjected to boronizing heat treatment, the surfaces of the materials of the upper and lower molds obtain FeB+Fe2B structures, which increases the service life of the upper and lower molds by 2-3 times.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The curved finger glove mold is made of stainless steel. Stainless steel is a metal material with high corrosion resistance, high strength, good formability, and high thermal conductivity. Products made of stainless steel have stable dimensions, good thermal conductivity, and corrosion resistance. The plate can be made of various thicknesses. These characteristics just meet the production requirements of the polymer material infiltration film product industry and can improve the product quality of the curved finger glove mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of a glove mold according to an embodiment of the present application.

[0029] Figure 2 is an exploded view of a glove mold according to an embodiment of the present application.

[0030] Figure 3 It is a process flow chart of an embodiment of the present application.

[0031] Figure 4 It is a schematic structural diagram of the injection mold of an embodiment of the present application.

[0032] Figure 5 It is a schematic diagram of the interior of the injection mold of an embodiment of the present application.

[0033] Figure 6 It is a schematic structural diagram of the injection molding machine of an embodiment of the present application.

[0034] Figure 7 It is a schematic diagram of the structure of the mold core of an embodiment of the present application.

[0035] Figure 8 It is a schematic diagram of the keyway matching structure between the sliding part and the main body part of the embodiment of the present application.

[0036] Fig. 9 It is a cross-sectional view of the mold core of the embodiment of the present application when it is not demolded.

[0037] Fig.10 It is a cross-sectional view of the mold core of the embodiment of the present application when being demolded.

[0038] Explanation of the reference numerals in the accompanying 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. feed port; 34. feed trough; 35. overflow well; 36. overflow trough; 37. cavity; 41. injection piston; 42. movable mold seat; 43. static mold seat; 44. core pulling mechanism; 45. stripping mechanism; 5. core; 51. sliding part; 52. main body; 521. palm body; 5211. connecting block; 522. finger body; 5221. connecting groove; 5222. limit block. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-10 This application is described in further detail.

[0040] like Figure 1 , Figure 2 As shown, the glove mold includes a main body 1 and a thumb portion 2 both made of stainless steel.

[0041] In this embodiment, the main body 1 and the thumb portion 2 are preferably made of 304 or 316L stainless steel.

[0042] Specifically, the main body 1 has a palm portion 11, on which an index finger portion 12, a middle finger portion 13, a ring finger portion 14 and a little finger portion 15 are arranged, and the thumb portion 2 is fixed to the palm portion 11 by welding, and the thumb portion 2 is arranged in a bent manner.

[0043] Preferably, the index finger 12 , the middle finger 13 , the ring finger 14 and the little finger 15 are all bent.

[0044] As another solution, partial bending may also be selected according to actual needs.

[0045] The main body 1 adopts a hollow thin-wall structure with a wall thickness of 0.8-2.0 mm.

[0046] The working principle of this embodiment is as follows: the main body 1 and the thumb 2 are both made of stainless steel, which has good thermal conductivity and corrosion resistance, and the plate can be made of various thicknesses. These characteristics just meet the production requirements of the polymer material infiltration film product industry and can improve the product quality of the glove mold for bent fingers.

[0047] like Figure 3 As shown, this embodiment also provides a method for preparing a glove mold, which is used to make the above-mentioned glove mold, comprising the following steps: S1: The main body 1 and thumb part 2 of the glove mold are molded by stainless steel liquid injection; S2: Welding the thumb portion 2 of the glove mold to the palm portion 11 of the main body 1 to form the glove mold.

[0048] Preferably, step S1 comprises the following steps: S11: The upper clamping mold 31 and the lower clamping mold 32 of the injection mold 3 are closed by an 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 mold cavity 37; In this embodiment, the upper clamping mold 31 and the lower clamping mold 32 are made of H13 mold steel, and the heat treatment is boronizing treatment. The boronizing agent LSB-1 granular boronizing agent is selected.

[0049] The boronizing process is as follows: Temperature 890 degrees, time 8 hours.

[0050] Boriding depth 0.05-0.08. Surface hardness HV1600-1800.

[0051] After boriding, it is isothermally quenched and oil-quenched to 200 degrees.

[0052] Then place in a 280 degree salt bath and air cool for 3 hours.

[0053] Finally, it was isothermally tempered at 480 degrees for 4 hours and oil cooled to room temperature.

[0054] In this way, the surfaces of the upper clamping die 31 and the lower clamping die 32 obtain FeB+Fe2B structure, which increases the service life of the mold by 2-3 times.

[0055] S22: injecting molten stainless steel liquid into the cavity 37 until the cavity 37 is filled; like Figure 4 , Figure 5 , Figure 6 As shown, 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 mold closing.

[0056] Specifically, the injection mold 3 is also provided with a feed port 33, a feed trough 34, an overflow well 35 and an overflow trough 36. The feed port 33 is connected to the cavity 37 of the injection mold 3 through the feed trough 34. The feed 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 cold chamber of the equipment, and then the stainless steel liquid is injected into the cavity 37 through the feed port 33 through the injection piston 41, and the injection speed is 1m / s to 3m / s. The liquid enters along the feed trough 34 and fills the cavity 37. The cavity 37 of the injection mold 3 is connected to the overflow well 35 through the overflow trough 36. The excess metal liquid is discharged to the overflow well 35 through the overflow trough 36 to accommodate the excess molten stainless steel liquid.

[0057] In this embodiment, there are three feed slots 34, and the molten stainless steel liquid enters the cavity 37 through the three feed slots 34. The three feed slots 34 ensure that the liquid can quickly enter the cavity 37 and accelerate the filling fullness of the molten stainless steel liquid.

[0058] like Figure 6 As shown, the injection molding machine is provided with a movable mold base 42 and a static mold base 43 corresponding to the upper clamping mold 31 and the lower clamping mold 32, as well as a core pulling mechanism 44 for taking out the mold core 5 and a stripping mechanism 45 for stripping the material.

[0059] S23: the upper mold 31 is further pressed downward; under further pressure, the surface quality of the product is better and internal defects of the product can be eliminated; S24: Open the mold, take out 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.

[0060] like Figure 7 , Figure 8 As shown, the mold core 5 includes a sliding part 51 and a main body part 52, the main body part 52 includes a palm body 521, the sliding part 51 is provided with a finger body 522, the sliding part 51 is slidably connected with the main body part 52, so that the main body part 52 and the sliding part 2 can slide relative to each other along the length direction of the mold core 5, and a connecting mechanism is provided between the main body part 52 and the sliding part 2 to connect or separate the two.

[0061] In this embodiment, the sliding portion 51 and the main body portion 52 are slidably connected via a keyway, preferably in the form of a dovetail groove.

[0062] like Fig. 9 , Fig.10 As shown, a connecting groove 5221 is provided at one end of the sliding portion 51 close to the palm body 521, a limiting block 5222 is provided at the notch position of the connecting groove 5221, a channel is provided between the limiting block 5222 and the side wall of the connecting groove 5221, and the connecting mechanism includes an "L"-shaped connecting block 5211 arranged at one end of the palm body 521 close to the sliding portion 51, the connecting block 5211 can slide into the connecting groove 5221 through the channel, and cooperate with the limiting block 5222 through rotation to form a snap connection.

[0063] like Fig. 9 As shown, when the mold core 5 is in the working state, the sliding part 51 is attached to the main body 52, there is a distance between the limit block 5222 and the clamping end of the connecting block 5211, and the clamping end of the connecting block 5211 is against the bottom of the connecting groove 5221; Fig.10 As shown, when demoulding is required, the main body 52 moves a certain distance relative to the sliding part 51, so that there is a certain space between the main body 52 and the sliding part 51, and the sliding part 51 rotates with the product, so that the limit block 5222 of the main body 52 moves to a position aligned with the channel, and the sliding part 51 and the main body 52 can be separated by sliding, so that the main body 52 can slide out relative to the product and demould smoothly.

[0064] The working principle of this embodiment is as follows: the glove mold is divided into a main body 1 and a thumb part 2, and then formed by welding, thereby reducing the processing difficulty and improving the quality of the glove mold.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A glove mold, characterized in that: The invention comprises a main body (1) and a thumb part (2) both made of stainless steel. The main body (1) comprises a palm part (11), and the palm part (11) is provided with an index finger part (12), a middle finger part (13), a ring finger part (14) and a little finger part (15). The thumb part (2) and the palm part (11) are fixed by welding, and the thumb part (2) is arranged in a bent manner.

2. A method for preparing a glove mold, used to make the above-mentioned glove mold, characterized in that: The following steps are involved: S1: The main body (1) and thumb (2) of the glove mold are molded by stainless steel liquid injection; S2: Welding the thumb portion (2) of the glove mold to the palm portion (11) of the main body (1) to form the glove mold.

3. The method for preparing a glove mold according to claim 2, characterized in that: The stainless steel liquid injection molding in step S1 comprises the following steps: S11: The upper clamping mold (31) and the lower clamping mold (32) of the injection mold (3) are closed by an injection molding machine to form an outer cavity, and the outer cavity and the mold core (5) in the outer cavity are combined to form a mold cavity (37); S22: injecting molten stainless steel liquid into the mold cavity (37) until the mold cavity (37) is filled; S23: the upper mold (31) is further pressed downward; S24: Open the mold and take out the semi-finished product and the mold core (5).

4. The method for preparing a glove mold according to claim 3, characterized in that: The injection mold (3) of step S11 is also provided with a feed port (33), a feed trough (34), an overflow well (35) and an overflow trough (36); the feed port (33) is connected to the mold cavity (37) of the injection mold (3) through the feed trough (34); and the mold cavity (37) of the injection mold (3) is connected to the overflow well (35) through the overflow trough (36).

5. The method for preparing a glove mold according to claim 4, characterized in that: The mold core (5) comprises a sliding portion (51) and a main body portion (52), the main body portion (52) comprising a palm body (521), the sliding portion (51) being provided with a finger body (522), the sliding portion (51) being slidably connected to the main body portion (52), so that the main body portion (52) and the sliding portion (2) can slide relative to each other along the length direction of the mold core (5), and a connecting mechanism is provided between the main body portion (52) and the sliding portion (51) so as to connect or separate the two.

6. The method for preparing a glove mold according to claim 5, characterized in that: The sliding part (51) and the main body part (52) are slidably connected via a key groove.

7. The method for preparing a glove mold according to claim 6, characterized in that: The end of the sliding portion (51) close to the palm body (521) is provided with a connecting groove (5221), the notch position of the connecting groove (5221) is provided with a limiting block (5222), and a channel is provided between the limiting block (5222) and the side wall of the connecting groove (5221), and the connecting mechanism comprises an "L"-shaped connecting block (5211) arranged at the end of the palm body (521) close to the sliding portion (51), and the connecting block (5211) can slide into the connecting groove (5221) through the channel and cooperate with the limiting block (5222) to form a snap connection through rotation.

8. The method for preparing a glove mold according to claim 7, characterized in that: The step S2 also includes the following steps: removing the flash and gate of the semi-finished product, and grinding and polishing.

9. The method for preparing a glove mold according to claim 8, characterized in that: The materials of the upper clamping mold (31) and the lower clamping mold (32) are subjected to boronizing heat treatment.

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