WO2019085147A1

WO2019085147A1 - Footwear article forming device

Info

Publication number: WO2019085147A1
Application number: PCT/CN2017/114948
Authority: WO
Inventors: 曾家铭
Original assignee: 广州精诚橡塑制品有限公司
Priority date: 2017-11-01
Filing date: 2017-12-07
Publication date: 2019-05-09
Also published as: CN107672203B; CN107672203A

Abstract

A footwear article forming device comprises an injection molding machine provided on a machine frame, and further comprises a forming mold set provided on the injection molding machine. The forming mold set comprises an outer modular mold (12) and an inner formation mold (11). The inner formation mold (11) is provided within the outer modular mold (12). When the mold is closed, the outer modular mold (12) and the inner formation mold (11) form therebetween a footwear-forming space shaped as a closed ring. The inner formation mold (11) comprises a first inner mold (111) and a second inner mold (112). The first inner mold (111) is fixedly installed on the outer modular mold (12). A second outer mold (112) is slidably connected to the first inner mold (111). The invention provides a separable inner formation mold (11), such that the mold can be fabricated to have an ergonomic curve matching a heel of a human body without affecting mold opening and ejection steps in a manufacturing process.

Description

Footwear forming device

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The invention relates to the technical field of machinery, and in particular to a shoe forming device.

Background technique

The foot plays an important role in the movement of the human body, and the shoes have a protective effect on the human foot. With the continuous advancement of human society, the function of shoes has become more and more perfect. Under normal circumstances, the heel part of the shoe needs to be in the arc of the human foot, so that the user can tightly fit the foot under the action of walking, running or jumping. The purpose of protecting the foot.

In the prior art, the injection molding method of the integrally formed shoe is to injection-mold a thermoplastic material such as PVC or TPR through an injection molding machine of an injection molding machine, and the molding die usually includes a core and an outer mold. The core may be generally referred to as a die or a boring head, and the shape of the core is matched with the outer mold to form an annular closed cavity, which is the forming position of the integrally formed shoe. In this type of injection molding, once the core has a convex curvature, the mold opening and closing steps cannot be performed smoothly, so that an integrally formed shoe having an ergonomic heel curvature cannot be produced.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a shoe forming apparatus that overcomes the deficiencies of the prior art in which an integrally formed shoe having a heel curvature cannot be produced.

To this end, the present invention employs the following technical solutions:

A shoe molding device includes a frame and an injection molding machine mounted on the frame, wherein the injection molding machine is provided with an upper heat plate, and the shoe molding device further comprises:

a molding die disposed on the upper hot plate, the molding die comprising a combined outer mold and a molded inner mold;

Wherein, the formed inner mold is installed in the combined outer mold, and after the mold clamping, a combined shape of the shoe body is formed between the combined outer mold and the formed inner mold;

The injection molding machine is provided with a rubber injection device, and the molding inner mold is provided with a shoe body feeding passage, the shoe body feeding passage includes a shoe body feeding port, the shoe body feeding port and the The shoe body forming space is connected; the glue injection device after the clamping is matched with the shoe body feeding channel;

The forming inner mold includes a first inner mold and a second inner mold; wherein the first inner mold is fixedly mounted on the combined outer mold, and the second inner mold is slidably coupled to the first inner mold .

Optionally, the forming inner mold comprises simulating a lower leg and a lower part of the human body;

The first inner mold includes a calf and a heel portion simulating a human body, and the second inner mold includes a forefoot portion simulating a human body; the second inner mold is slidably coupled to the first inner mold through a pulley.

Optionally, the injection molding machine is further provided with a second driving member, and the second driving member drives and connects the second inner mold;

Optionally, the second driving component is a cylinder.

Optionally, the shoe body molding space includes a shoe body molding space and a sole molding space;

The combined outer mold is provided with a separating plate, and the separating plate is movably connected with the combined outer mold for isolating the shoe body forming space and the sole forming space;

When the isolation is performed, the insulation panel is horizontally inserted between the shoe body molding space and the sole molding space.

Optionally, the partition plate is provided with a channel transfer path, and the material transfer path includes a transfer inlet port and a transfer discharge port;

When the separating plate isolates the shoe body forming space from the sole forming space, the transfer inlet port communicates with the shoe body inlet port, and the transfer discharge port communicates with the shoe body forming space.

Optionally, the channel transfer path is in a "V" shape.

Optionally, the frame is further provided with a first driving component, and the first driving component drives and connects the isolation plate.

Optionally, the spacer is further provided with a positioning component, and the positioning component is matched with the bottom of the forming inner mold;

When the separating plate isolates the shoe body forming space from the sole forming space, the positioning member on the separating plate is cooperatively coupled with the forming inner mold.

Optionally, the rubber injection device is provided with a feeding screw, one end of the feeding screw is connected to the feeding motor, and the other end of the feeding screw extends into the shoe body feeding passage;

The feed screw is a hollow structure.

The beneficial effects of the invention:

In the present invention, by providing a detachable molded inner mold, it is possible to produce an ergonomic shoe having an ergonomic fit and a heel arc without affecting the mold opening and demolding steps in the production process. To meet the market demand.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic structural view of a shoe molding apparatus according to an embodiment of the present invention;

FIG. 2 is still another schematic structural diagram of a shoe molding device according to an embodiment of the present invention; FIG.

FIG. 3 is a schematic diagram of a split structure of a molded inner mold in a shoe molding apparatus according to an embodiment of the present invention.

In the above figure: 11, a molding inner mold; 111, a first inner mold; 112, a second inner mold; 113, a first driving member; 12, a combined outer mold; 13, a shoe body feeding passage; 131, a shoe body Feeding port; 141 upper hot plate, 142 lower hot plate; 15, isolation plate; 151, second driving member; 152, material path turning.

Detailed ways

In order to make the object, the features and the advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to FIG. 1. FIG. 1 is a schematic structural view of a shoe molding apparatus according to an embodiment of the present invention.

The invention provides a shoe forming device, comprising:

Rack for providing stable support for the unit.

The injection molding machine is mounted on the frame for implementing various processing steps of the shoe.

The upper hot plate 141 and the lower hot plate 142 are attached to an injection molding machine for heating and heating the molding die.

The molding die is installed between the upper hot plate 141 and the lower hot plate 142, and includes a combined outer mold 12 and a molded inner mold 11; the formed inner mold 11 includes a lower leg and a lower portion of the simulated human body, and is placed in the combined outer mold 12 The combined outer mold 12 and the shaped inner mold 11 are matched in shape to form a shoe body molding space in a closed loop therebetween.

The injection molding machine is provided with a rubber injection device. The molding inner mold 11 is provided with a shoe body feeding passage 13, and the shoe body feeding passage 13 includes a shoe body feeding port 131, and the shoe body feeding port 131 is connected with the shoe body forming space. . The clamped glue injection device cooperates with the shoe body feed passage 13.

Each organization will be described in detail below.

In the embodiment, the shoe body molding space includes a sole molding space and a shoe body molding space. The upper portion of the finished shoe is formed in the body forming space, and the sole portion of the finished shoe is formed in the sole forming space.

Since the rubber compound is formed into a sleeve shape after being vulcanized and shaped, in order to facilitate the demolding operation, the molded inner mold 11 can be pulled out from the combined outer mold 12 after the mold is opened, so that the formed finished shoes are exposed. To facilitate the demolding operation.

However, in order to manufacture a shoe with an ergonomic heel curvature, the heel portion of the molded inner mold 11 is provided with a convex curvature, and the combined outer mold 12 is provided with a concave arc at a position corresponding to the curvature of the convex portion, and The convex curvature is matched with the concave curvature, so that the formed inner mold 11 cannot be directly pulled out from the combined outer mold 12.

FIG. 2 is still another schematic structural view of a shoe molding device according to an embodiment of the present invention.

In the present embodiment, the forming inner mold 11 is split into the first inner mold 111 and the second inner mold 112 in order to be able to make the ergonomic footwear, and in the initial state, the first state The inner mold 111 and the second inner mold 112 are closed to form a complete shoe last.

In the present embodiment, the first inner mold 111 is fixedly mounted on the combined outer mold 12, and the second inner mold 112 is slidably coupled to the first inner mold 111 via a pulley or a slide rail.

Please refer to FIG. 3 , which is a schematic diagram of a split structure of a molded inner mold in a shoe molding device according to an embodiment of the present invention.

Wherein, since the molding inner mold 11 includes the lower leg and the lower part of the simulated human body, the calf and the heel portion of the simulated human body and the forefoot portion of the simulated human body are split into the first inner mold 111 and the second inner mold 112. The portion including the calf and the heel simulating the human body is the first inner mold 111, and the second inner mold 112 including the forefoot portion of the human body is simulated.

Thus, the first inner mold 111 in which the convex arc is concentrated does not need to be separated from the combined outer mold 12, and only the second inner mold 112 needs to be along the pulley on the first inner mold 111 when the mold is opened. Or the slide rail is pulled down, and the finished shoe is separated from the combined outer mold 12 along with the second inner mold 112, thereby laying a foundation for the subsequent demolding operation.

Due to the large weight of the mold, a set of molds can reach 800 kg. Under the general technical conditions, it is impossible to process two shoes at the same time.

In order to solve the above problem, in the present embodiment, the top of the injection molding machine is provided with a second driving member 151 for driving the second inner mold 112. Wherein, the second driving member 151 is provided with a cylinder, and two cylinders are provided, and each cylinder drives a group of second inner molds 112, so that the production of the two shoe tools can be simultaneously performed, thereby improving production efficiency.

In addition, the oil cylinder is used to drive the molding inner mold 11. Compared with other injection machines in the prior art, the injection molding machine used in the embodiment of the invention has a lower height and a more simplified structure, thereby achieving the purpose of saving space.

In this embodiment, the shoe body molding space includes a shoe body molding space and a sole molding space, and the shoe body of the finished shoe is vulcanized in the shoe body molding space, and the sole of the finished shoe is vulcanized in the shoe molding space.

Based on the above embodiment, in the present embodiment, the combined outer mold is further provided with a partitioning plate 15 for isolating the shoe body forming space and the sole forming space; the partitioning plate 15 is movably connected with the combined outer mold.

When the isolation is performed, the partitioning plate 15 is horizontally inserted between the shoe body molding space and the sole molding space, thereby isolating the shoe body molding space from the shoe molding space.

Further, the spacer 15 is further provided with a positioning member which cooperates with the bottom of the molded inner mold 11. When the partitioning plate 15 isolates the shoe body forming space from the shoe forming space, the positioning member on the separating plate 15 is coupled with the forming inner mold 11 to fix the forming inner mold 11 to avoid the process of injection molding. The forming inner mold 11 is shaken to affect the shape of the shoe body molding space, resulting in a thin or too thick thickness of a certain part of the finished shoe, resulting in product quality problems.

In the present embodiment, a spacer turn path 152 is further disposed in the partition plate 15, and the feed path transfer path 152 includes a transfer inlet port and a transfer discharge port. The channel transfer path 152 is of the "V" type.

When the separating plate 15 isolates the shoe body forming space from the sole forming space, the transfer inlet port communicates with the shoe body inlet port 131, and the transfer spout port communicates with the shoe body forming space.

Wherein, the transfer spout is connected from the bottom of the shoe body forming space to the shoe body forming space, so that the glue inlet is located at the bottom of the shoe body forming space. After the mold is closed, the bottom body rubber in the sole molding space is combined with the sole rubber to hide the glue inlet between the shoe body and the sole.

a feeding screw is arranged in the rubber injection device, one end of the feeding screw is connected to the feeding motor, and the other end of the feeding screw extends into the shoe body feeding passage 13; in order to facilitate the cooling of the feeding screw by the refrigerant system, The feed screw is a hollow structure.

When the glue is injected, the rubber material is squeezed into the material feeding passage 13 from the rubber injection device, enters the material passage turning passage 152 through the shoe body feeding port 131, and enters the shoe body forming space from the transfer material discharge port. .

In order to make the insertion and extraction of the partitioning plate 15 more stable, so as to reduce the influence on the rubber in the molding space of the shoe body, the frame is further provided with a first driving member 113, and the first driving member 113 is drivingly connected to the separating plate 15 . In the embodiment, the first driving member 113 is an oil cylinder.

In addition, since the shoe forming device on the market is mainly for plastic materials, the rubber material can only be handled by hand or molding, and the quality thereof is far from the product obtained by the injection molding process. By the shoe forming device provided by the invention, the rubber material product can be produced by the injection machine, thereby obtaining a rubber product with a conforming shape and high quality, improving the production quality and the production efficiency, and satisfying the market demand.

In the prior art, we commonly use rain shoes in two types, namely plastic materials and rubber materials. Among them, the rain shoes of plastic materials are mainly obtained by plastic injection molding process, while the rain shoes of rubber materials are mostly the traditional vulcanized shoes and the rubber shoes obtained by the traditional molding process. The shoe forming device provided by the invention can meet the rubber injection molding process and change the unique situation of the plastic rain shoe injection molding process, which is a breakthrough of the prior art.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents of the technical solutions of the embodiments of the present invention.

Claims

A shoe molding device, comprising: a frame and an injection molding machine mounted on the frame, wherein the injection molding machine is provided with an upper heat plate, wherein the shoe molding device further comprises:

a molding die disposed on the upper hot plate, the molding die comprising a combined outer mold and a molded inner mold;

Wherein, the formed inner mold is installed in the combined outer mold, and after the mold clamping, a combined shape of the shoe body is formed between the combined outer mold and the formed inner mold;

The injection molding machine is provided with a rubber injection device, and the molding inner mold is provided with a shoe body feeding passage, the shoe body feeding passage includes a shoe body feeding port, the shoe body feeding port and the The shoe body forming space is connected; the glue injection device after the clamping is matched with the shoe body feeding channel;

The forming inner mold includes a first inner mold and a second inner mold; wherein the first inner mold is fixedly mounted on the combined outer mold, and the second inner mold is slidably coupled to the first inner mold .
The shoe molding apparatus according to claim 1, wherein the molding inner mold comprises a lower leg and a lower portion simulating a human body;

The first inner mold includes a calf and a heel portion simulating a human body, and the second inner mold includes a forefoot portion simulating a human body; the second inner mold is slidably coupled to the first inner mold through a pulley.
The shoe molding apparatus according to claim 2, wherein the injection molding machine is further provided with a second driving member, and the second driving member drives and connects the second inner mold.
A shoe forming apparatus according to claim 3, wherein said second driving member is a cylinder.
The shoe molding device according to claim 1, wherein the shoe body molding space comprises a shoe body molding space and a shoe molding space;

The combined outer mold is provided with a separating plate, and the separating plate is movably connected with the combined outer mold for isolating the shoe body forming space and the sole forming space;

When isolating, the spacer is transversely inserted between the shoe body forming space and the sole forming space.
The shoe molding apparatus according to claim 5, wherein the partition plate is provided with a channel turning path, and the channel turning path comprises a transfer inlet port and a transfer discharge port;

When the separating plate isolates the shoe body forming space from the sole forming space, the transfer inlet port communicates with the shoe body inlet port, and the transfer discharge port communicates with the shoe body forming space.
A shoe forming apparatus according to claim 6, wherein said channel turning path has a "V" shape.
The shoe molding apparatus according to claim 5, wherein the frame is further provided with a first driving member, and the first driving member drives and connects the spacer.
The shoe molding apparatus according to claim 5, wherein the spacer is further provided with a positioning member, and the positioning member is matched with the bottom of the molding inner mold;

When the separating plate isolates the shoe body forming space from the sole forming space, the positioning member on the separating plate is cooperatively coupled with the forming inner mold.
A shoe molding apparatus according to claim 1, wherein said rubber injection device is provided with a feed screw, one end of said feed screw is connected to a feed motor, and the other end of said feed screw is inserted into the same Said shoe body feeding channel;

The feed screw is a hollow structure.