Insole processing technology and die thereof

Abstract

The invention relates to an insole processing technology which comprises the following steps: S1, preparing a polyurethane AB material for later use; s2, the mold is placed in a polyurethane injection molding machine to be heated; s3, a cushion surface is hung at one end of a forming block of the mold, a detachable cushion layer is laid in a forming groove of the mold, the cushion layer is laid along the inner wall of the forming groove of the mold, the cushion layer is matched with the inner wall of the forming groove of the mold, and the cushion layer is free of wrinkles; s4, a polyurethane AB material is heated and melted and injected into a forming groove of the mold, mold closing is conducted, and after mold closing, the polyurethane AB material is located between the cushion surface and the cushion layer; s5, the temperature is kept at 40-50 DEG C, and the mold is continuously heated for 5 minutes; and S6, the mold is opened, the insole and the cushion layer are separated from the forming cavity of the mold together, the cushion layer is torn off, and the cushion layer waits for the next round of processing for standby application, a release agent is replaced with the cushion layer, use of the release agent is avoided, pollution to the environment is reduced, demolding is convenient, adhesion is avoided, it is guaranteed that the surface of the insole is smooth, meanwhile, the cushion layer can be recycled, and the environment friendliness is good.

Description

Technical Field

[0001] The invention relates to the field of insole processing, and in particular to an insole processing technology and a mold thereof. Background Art

[0002] Existing insole processing usually goes through the following process: S1, material preparation, prepare polyurethane AB material; S2, place the mold in a polyurethane injection molding machine for heating; S3, spray a release agent on the inner wall of the molding groove of the mold; S4, injection, inject the polyurethane AB material; S5, mold closing, and keep the temperature at 40°C to 50°C and continue to heat the mold for 5 minutes; S6, demolding, open the mold for demolding; in the above processing technology, it is necessary to spray the release agent in the molding groove of the mold again during each processing, and multiple spraying is required to ensure comprehensive spraying. The operation is cumbersome and the processing efficiency is low. The use of the release agent also pollutes the environment. In addition, the insole formed in the above method is not easy to demold. During the demolding process, when the insole is peeled off from the mold molding groove, part of the inclined surface will still be adhered to the mold molding groove and separated from the sole body, resulting in a rough surface of the insole. Summary of the invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art. Provided are an insole processing technology and a mold thereof, wherein a cushion layer that can be repeatedly used is laid in a mold groove to replace a release agent, thereby avoiding the use of a release agent, reducing pollution to the environment, facilitating demoulding, avoiding adhesion, and ensuring a smooth surface of the insole.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a process for processing insoles, characterized in that it comprises: S1, material preparation, preparing polyurethane AB material and waiting for standby; S2, placing the mold in a polyurethane injection molding machine for heating; S3, hanging a pad surface at one end of the molding block of the mold, laying a detachable pad layer in the molding groove of the mold, the pad layer is laid along the inner wall of the molding groove of the mold, the pad layer fits with the inner wall of the molding groove of the mold, and the pad layer has no wrinkles; S4, material injection, heating and melting the polyurethane AB material and injecting it into the molding groove of the mold and closing the mold, after closing the mold, the polyurethane AB material is between the pad surface and the pad layer; S5, maintaining the temperature at 40°C to 50°C and continuously heating the mold for 5 minutes; S6, demolding, opening the mold, the insole and the pad layer are separated from the molding cavity of the mold together, and the pad layer is torn off, and the pad layer is ready for the next round of processing.

[0005] The present invention with the above characteristics: the release agent is replaced by the cushion layer, thereby avoiding the use of the release agent, reducing pollution to the environment, facilitating demoulding, avoiding adhesion, and ensuring a smooth surface of the insole. At the same time, the cushion layer can be recycled and has good environmental protection.

[0006] A further configuration of the present invention is that the inner wall of the molding groove of the mold is covered with adsorption holes, the adsorption holes are connected to a negative pressure generating device, the cushion layer is laid along the inner wall of the molding groove of the mold, and the cushion layer fits with the inner wall of the molding groove of the mold, the adsorption holes adsorb various parts of the cushion layer to make the cushion layer wrinkle-free, and the negative pressure generating device stops working when demolding.

[0007] The present invention with the above characteristics: the adsorption holes cooperate with the negative pressure generating device to generate suction in the adsorption holes, so that the adsorption holes can adsorb the cushion layer, so that the cushion layer is fully unfolded and fits with the inner wall of the forming groove, so that the cushion layer has no wrinkles.

[0008] A further configuration of the present invention is that the cushion layer in S3 has a smooth surface and is non-sticky and its properties do not change at a temperature of 40° C. to 50° C.

[0009] The present invention having the above characteristics: any material meeting the above conditions can be used as the cushion layer.

[0010] A further configuration of the present invention is that the cushion layer in S3 is a nylon membrane.

[0011] The present invention with the above characteristics is preferably a nylon membrane, which has high tensile strength and tensile strength, excellent heat resistance, is non-toxic and odorless, does not release harmful substances, is recyclable, and helps reduce the pollution of plastic waste to the environment.

[0012] A further configuration of the present invention is: the mold includes an upper mold and a lower mold, the upper mold is provided with a molding block, the lower mold is provided with a molding groove adapted to the molding block, when the upper mold and the lower mold are covered, the molding block and the molding groove constitute a molding cavity, the lower mold is provided with a plurality of adsorption holes arranged along the inner wall of the lower mold groove, the lower mold is provided with a negative pressure adsorption channel connecting the adsorption holes, and the lower mold connecting the negative pressure adsorption channel is provided with an adsorption connection port.

[0013] The present invention with the above characteristics: the lower mold is not provided with a main material hole, and the melted polyurethane AB material needs to be injected into the molding groove before the mold is closed, and the adsorption holes arranged in the molding groove adsorb the cushion layer so that the cushion layer is unfolded along the inner wall of the molding groove without wrinkles.

[0014] A further configuration of the present invention is that the adsorption connection port is linked to a negative pressure generating device.

[0015] The present invention having the above-mentioned characteristics: the negative pressure generating device causes the adsorption holes to generate suction.

[0016] A further configuration of the present invention is that the upper mold is hingedly connected to one end of the lower mold, and the upper mold and the lower mold can be turned over and covered.

[0017] The present invention with the above characteristics is convenient for covering the upper mold and the lower mold.

[0018] The beneficial effects of the present invention are: a cushion layer that can be repeatedly used is laid in the mold groove to replace the mold release agent, thereby avoiding the use of the mold release agent, reducing pollution to the environment, facilitating mold release, and ensuring a smooth surface of the insole.

[0019] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0021] Figure 2 It is a three-dimensional schematic diagram of the lower mold according to an embodiment of the present invention.

[0022] Figure 3 It is a cross-sectional schematic diagram of the lower mold according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] A shoe insole processing technology, comprising: S1, preparing materials, preparing polyurethane AB materials and waiting for standby; S2, placing a mold in a polyurethane injection molding machine for heating; S3, hanging a pad surface at one end of a forming block of the mold, laying a detachable pad layer in a forming groove of the mold, laying the pad layer along the inner wall of the forming groove of the mold, the inner wall of the forming groove of the mold is covered with adsorption holes, the adsorption holes are connected to a negative pressure generating device, the negative pressure generating device works so that the adsorption holes adsorb various parts of the pad layer, the pad layer fits with the inner wall of the forming groove of the mold, and the pad layer has no wrinkles; S4, injecting materials, heating and melting The polyurethane AB material is injected into the molding groove of the mold and the mold is closed. After the mold is closed, the polyurethane AB material is between the pad surface and the pad layer; S5, the temperature is maintained at 40°C to 50°C and the mold is continuously heated for 5 minutes; S6, demoulding, the negative pressure generating device stops working and the mold is opened, the insole and the pad layer are separated from the molding cavity of the mold, and the pad layer is torn off, and the pad layer is ready for the next round of processing. The pad layer must meet the conditions of smooth and non-stick surface and no change in properties at a temperature of 40°C to 50°C. It can be a polyurethane film, a nylon film, etc., preferably a nylon film.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the mold includes an upper mold 1 and a lower mold 2, the upper mold 1 is provided with a molding block 101, and the lower mold 2 is provided with a molding groove 201 adapted to the molding block 101. When the upper mold 1 and the lower mold 2 are covered, the molding block 101 and the molding groove 201 constitute a molding cavity, the lower mold 1 is provided with a plurality of adsorption holes 4 arranged along the inner wall of the lower mold groove 201, and the adsorption holes 4 are evenly distributed in the molding groove 201, the lower mold 2 is provided with a negative pressure adsorption channel 3 connecting the adsorption holes 4, and the lower mold 2 is connected to the negative pressure adsorption channel 3 and is provided with an adsorption connection port 202, and the adsorption connection port 202 is linked to the negative pressure generating device, and the negative pressure generating device can be a vacuum machine or an exhaust fan.

[0025] The upper mold 1 and the lower mold 2 of the above mold are hingedly connected at one end, and can also be independently arranged at corresponding installation positions of the injection molding machine.

Claims

1. A shoe insole processing technology, characterized in that: include: S1, prepare materials, prepare polyurethane AB materials, and wait for use; S2, placing the mold in a polyurethane injection molding machine for heating; S3, a cushion surface is hung on one end of the forming block of the mold, and a detachable cushion layer is laid in the forming groove of the mold, the cushion layer is laid along the inner wall of the forming groove of the mold, the cushion layer fits with the inner wall of the forming groove of the mold, and the cushion layer has no wrinkles; S4, injecting material, heating and melting the polyurethane AB material and injecting it into the molding groove of the mold and closing the mold. After closing the mold, the polyurethane AB material is between the cushion surface and the cushion layer; S5, keep the temperature at 40°C to 50°C and continue heating the mold for 5 minutes; S6, demoulding, opening the mold, the insole and the cushion layer are separated from the molding cavity of the mold, and the cushion layer is torn off, and the cushion layer is ready for the next round of processing.

2. The insole processing technology according to claim 1 is characterized by: The inner wall of the molding groove of the mold is covered with adsorption holes, and the adsorption holes are connected to a negative pressure generating device. The cushion layer is laid along the inner wall of the molding groove of the mold, and the cushion layer fits with the inner wall of the molding groove of the mold. The adsorption holes adsorb various parts of the cushion layer to make the cushion layer wrinkle-free. When demolding, the negative pressure generating device stops working.

3. The insole processing technology according to claim 1 is characterized by: The cushion layer in S3 has a smooth and non-sticky surface and its properties do not change at a temperature of 40° C. to 50° C.

4. A shoe insole processing technology according to claim 1, 2 or 3, characterized in that: The cushion layer in S3 is a nylon membrane.

5. The insole processing mold according to claim 1, characterized in that: The mold comprises an upper mold and a lower mold, the upper mold is provided with a molding block, the lower mold is provided with a molding groove adapted to the molding block, when the upper mold and the lower mold are covered, the molding block and the molding groove constitute a molding cavity, the lower mold is provided with a plurality of adsorption holes arranged along the inner wall of the lower mold groove, the lower mold is provided with a negative pressure adsorption channel connected to the adsorption holes, and the lower mold connected to the negative pressure adsorption channel is provided with an adsorption connection port.

6. The insole processing mold according to claim 4, characterized in that: The adsorption connection port is linked to the negative pressure generating device.

7. The insole processing mold according to claim 4 is characterized in that: The upper mold is hingedly connected to one end of the lower mold, and the upper mold and the lower mold can be turned over and covered.

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