Polyvinyl chloride (PVC) blowing plastic suction and blowing suction printing film paper mold

Abstract

The utility model relates to the related field of molds, in particular to a polyvinyl chloride (PVC) blowing plastic uptake and blowing suction printing film paper mold, which comprises an upper mold cover, a mold orifice, a feed port, a positioning pin, a handle, a connecting buckle and a plastic uptake lower mold. Cloth or a thin film is fixed to the die face of the lower die, then the upper die cover is turned over and pressed down to the lower die, then an external air pump is connected to the air suction valve, negative pressure is generated through air suction, and the cloth or the thin film is adsorbed and attached to a forming die opening formed in the die face of the lower die through the air suction holes formed in the die face of the lower die in a penetrating mode. Then, a heated powder or particle material needing to be formed is injected through a material injection opening, and the formed powder or particle material is fixedly attached to the cloth or the thin film; the problem that in the prior art, when materials such as shoe cloth with patterns are hot-pressed in a product, secondary processing is needed, and time and labor are wasted can be solved.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a polyvinyl chloride (PVC) blow molding and blow printing film mold. Background Technology

[0002] Molds refer to various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, and stretching. Among them are shoe molds, which are one of the key tools in shoe making, determining the shape, size, and comfort of the shoes.

[0003] The existing technology has the following problems: The existing shoe molds include air-blowing molds. The air-blowing mold melts the raw material and then blows it into the mold under high pressure, so that it cools and solidifies. Finally, the mold is opened to take out the finished product, and then secondary processing is carried out by hot-pressing the patterned shoe cloth and other materials into the mold to take out the finished product. Production using this mold requires two processes, which is cumbersome and reduces work efficiency.

[0004] To address these issues, we propose a polyvinyl chloride (PVC) blow molding and blow printing film mold. Utility Model Content

[0005] This invention provides a polyvinyl chloride (PVC) blow molding and blow printing film mold to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a polyvinyl chloride (PVC) blow molding and blow molding printing film mold, comprising an upper mold cover and a lower mold, wherein the upper mold cover has a mold opening at its front end and a feed inlet on its right side, and a filling port is provided on the mold opening, the feed inlet being connected to the filling port on the mold opening, a positioning pin is provided at the top of the front end of the upper mold cover, a handle is provided at the top of the upper mold cover, and a connecting buckle is installed at the bottom of the upper mold cover; the lower mold includes a lower mold, a reserved groove, a positioning hole, a suction valve, and a lower mold surface. The lower mold comprises a clamping structure, a locking buckle, and a locking mechanism. A connecting buckle is installed at the tail end of the lower mold, and an upper mold cover is rotatably installed via the connecting buckle. A pre-reserved groove is provided in the center of the top of the lower mold, and a positioning hole is provided at the front of the top of the lower mold. An air suction valve is disposed through one side of the lower mold, with one end communicating with the pre-reserved groove. The lower mold surface is embedded in the top of the pre-reserved groove, forming a cavity with the groove. The clamping structure is rotatably installed on either the left or right side of the lower mold. A locking buckle is provided on the outer side of the clamping structure, and a locking mechanism is provided on either the left or right side of the lower mold. The locking buckle and the locking mechanism are connected. Preferably, the lower mold surface includes an embedded plate, a forming mold opening, and an air suction hole. The embedded plate is embedded in the top of the pre-reserved groove, forming a cavity with the groove. The forming mold opening is located in the center of the top of the embedded plate, and an air suction hole is provided on the opening, communicating with the cavity formed by the pre-reserved groove and the embedded plate.

[0007] Preferably, there are at least two air intake holes, which are formed through the mold opening.

[0008] Preferably, the clamping structure includes a fixed plate, a rotating buckle, a limiting hole, and a mold opening. The fixed plate is equipped with a rotating buckle and a locking buckle on either the left or right side, and the fixed plate is rotatably installed on either the left or right side of the lower mold via the rotating buckle. The limiting hole is opened at the top front end of the fixed plate, and the top end of the fixed plate is provided with a mold opening.

[0009] Preferably, the limiting hole is vertically through-hole opened at the top front end of the fixing plate, and the number of holes is the same as that of the positioning pins, and the two are connected together.

[0010] Preferably, the number of positioning holes is the same as the number of positioning pins, and the two are connected in a cooperative manner.

[0011] Preferably, the suction valve is disposed at any one of the front and rear ends or left and right sides of the lower mold.

[0012] The beneficial effects of this utility model are:

[0013] This utility model features a vacuum forming lower mold, including a lower mold and a lower mold surface that mate to form a cavity. At least two suction holes are formed through the lower mold surface. In use, fabric or film is first placed on the lower mold surface, then the pressing structure is flipped over and locked in place using a locking mechanism, thus fixing the fabric or film to the lower mold surface. The fabric or film can be vacuum-printed film, transfer film, leather, or absorbent shoe upper materials, etc. Next, the upper mold cover is flipped over and pressed onto the lower mold, forming a sealed cavity. An external air pump is then connected to the suction valve, generating negative pressure. This negative pressure creates pressure within the cavity formed by the lower mold and its surface, and through the suction holes in the lower mold surface, it draws the fabric or film onto the forming opening in the lower mold surface, thus forming the vacuum. Then, an external feeder is connected to the feed inlet at the feed end, and the heated powder or granular material to be shaped is injected. The feed inlet and the injection port on the die are connected to each other. The heated powder or granular material to be shaped enters the cavity formed by the lower die surface and the upper die cover through the injection port. At this time, the fabric or film is still adsorbed on the forming die opening in the lower die surface. The injected heated powder or granular material to be shaped will flow to the surface of the fabric or film that has been adsorbed and shaped. When the cavity is filled, the external feeder stops injecting material and waits for cooling and shaping. After shaping, the powder or granular material will be fixedly attached to the fabric or film. This utility model can solve the problem of secondary processing, which is time-consuming and labor-intensive, when hot pressing patterned shoe cloth and other materials into products in the prior art. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This is a schematic diagram of the structure of the vacuum forming lower mold of this utility model;

[0017] Figure 4 This is a schematic diagram of the reserved groove and lower mold of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the lower mold surface of this utility model;

[0019] Figure 6 This is a schematic diagram of the pressing structure of this utility model.

[0020] The components include: upper mold cover-1, mold opening-2, feed inlet-3, positioning pin-4, handle-5, connecting buckle-6, lower vacuum forming mold-7, lower mold-71, reserved groove-72, positioning hole-73, suction valve-74, lower mold surface-75, pressing structure-76, locking buckle-77, locking latch-78, embedded plate-751, forming mold opening-752, suction hole-753, fixing plate-761, rotating buckle-762, limiting hole-763, mold opening-764, and injection port-1A. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] like Figure 1 , 2 As shown, this utility model provides a polyvinyl chloride (PVC) blow molding and blow molding printing film mold, including an upper mold cover 1 and a lower mold 7. The upper mold cover 1 is used for installation and connection, and also for shaping the injected heated powder or granular material in conjunction with the lower mold 7. A mold opening 2 is provided at the front end of the upper mold cover 1. The mold opening 2 is used to determine the shape, pattern, etc. of the injected heated powder or granular material. The shape of the mold opening 2 can be changed according to actual production needs. A feed port 3 is provided on the right side of the upper mold cover 1. An injection port 1A is provided on the mold opening 2. The feed port 3 and the injection port 1A on the mold opening 2 are interconnected. The injection port 1A is used to inject the heated powder or granular material into the upper mold cover 1. The mold is formed in the sealed cavity formed by the mold opening 2 on the mold cover 1 and the lower mold 71. It should be noted that when injecting heated powder or granular material into the sealed cavity formed by the mold opening 2 and the lower mold 71, the fabric or film should be adsorbed and formed in the lower mold 71 first to ensure that the injected heated powder or granular material flows to the surface of the adsorbed fabric or film. The top front end of the upper mold cover 1 is provided with a positioning pin 4, which is used to cooperate with the positioning hole 73 and the limiting hole to ensure the tightness of the connection between the upper mold cover 1, the lower mold 71 and the pressing structure 76. The top of the upper mold cover 1 is provided with a handle 5, and the bottom of the upper mold cover 1 is installed with a connecting buckle 6. The opening and closing of the upper mold cover 1 to the lower mold 7 can be controlled by the connecting buckle 6.

[0023] like Figure 3 , 4As shown, the upper mold cover 1 of this utility model is rotatably installed on the tail of the lower mold 7 via a connecting buckle 6. The lower mold 7 includes a lower mold 71, a reserved groove 72, a positioning hole 73, an air suction valve 74, a lower mold surface 75, a pressing structure 76, a locking buckle 77, and a locking latch 78. The lower mold 71 is equipped with a connecting buckle 6 at its tail end. The lower mold 71 is used for installation and connection, and at the same time, it cooperates with the mold opening 2 on the upper mold cover 1 to shape the injected heated powder or granular material. The upper mold cover 1 is rotatably installed via the connecting buckle 6. A reserved groove 72 is provided in the top center of the lower mold 71. The reserved groove 72 is used to install the lower mold surface 75. A positioning hole 73 is provided at the front of the top of the lower mold 71. The positioning hole 73 is used to cooperate with the positioning pin 4 to ensure a tight connection between the lower mold 71 and the upper mold cover 1. The air suction valve 74 is provided through one side of the lower mold 71. The air suction valve 74 can penetrate through the lower mold 71. The lower mold 71 is placed on either side or at the front end, with one end connected to the pre-reserved groove 72. The lower mold surface 75 is embedded in the top of the pre-reserved groove 72 and forms a cavity with the pre-reserved groove 72. The suction valve 74 is used to connect an external air pump to create negative pressure in the cavity, which adsorbs and shapes the fabric or film placed on the lower mold surface 75. The fabric or film can be absorbent printing film paper, transfer film paper, leather, or absorbent shoe upper material, etc. The pressing structure 76 is rotatably installed on either side of the lower mold 71. The pressing structure 76 is used to fix the fabric or film placed on the lower mold surface 75. The pressing structure 76 is provided with a buckle 77 on the outside and a lock 78 is provided on either side of the lower mold 71. The buckle 77 and the lock 78 are connected in cooperation. Through the cooperation of the buckle 77 and the lock 78, the pressing structure 76 can fix the fabric or film more firmly.

[0024] The number of positioning holes 73 is the same as that of positioning pins 4, and the two are connected together. Since the two are the same number, they can have a better fixing effect.

[0025] The suction valve 74 is installed at any point on the front and rear ends or left and right sides of the lower mold 71. Users can change the position of the suction valve 74 according to the actual situation to avoid the suction valve 74 being fixed in position, which would limit the connection between the suction valve 74 and the air pump.

[0026] like Figure 5As shown, the lower mold surface 75 of this utility model includes an embedded plate 751, a forming mold opening 752, and a suction hole 753. The embedded plate 751 is embedded and installed on the top of the reserved groove 72. The embedded plate 751 is used for installation and connection, and forms a cavity with the reserved groove 72. The forming mold opening 752 is opened at the middle of the top of the embedded plate 751, and the forming mold opening 752 is provided with a suction hole 753. The forming mold opening 752 is used to cooperate with the mold opening 2 to shape the injected heated powder or granular material. The suction hole 753 communicates with the cavity formed by the reserved groove 72 and the embedded plate 751. Through the suction hole 753, the external air pump of the suction valve 74 can be connected to the suction valve 74. The negative pressure formed in the cavity is transmitted to the fabric or film placed on the embedding plate 751, causing it to be adsorbed and formed at the forming mold 752. Before injecting the heated powder or granular material into the cavity formed by the forming mold 752 and the mold 2, the fabric or film should be adsorbed and formed in the lower mold 71 to ensure that the injected heated powder or granular material flows to the surface of the adsorbed fabric or film. In this embodiment, twenty-five suction holes 753 are provided and are opened through the forming mold 752. The twenty-five holes can better adsorb and form the fabric or film placed on the embedding plate 751 at the forming mold 752.

[0027] like Figure 6 As shown, the pressing structure 76 of this utility model includes a fixed plate 761, a rotating buckle 762, a limiting hole 763, and a mold opening 764. The rotating buckle 762 and the locking buckle 77 are installed on either the left or right side of the fixed plate 761. The rotating buckle 762 can be a hinge or a rotating shaft. The fixed plate 761, together with the rotating buckle 762, is used to fix the fabric or film placed on the embedded plate 751, so that it can be better adsorbed and formed in the forming mold opening 752. The fixed plate 761 is rotatably installed on either the left or right side of the lower mold 71 through the rotating buckle 762. The limiting hole 763 is opened at the top front end of the fixed plate 761. The limiting hole 763 is used to cooperate with the positioning pin 4 to ensure the tightness of the connection. The top end of the fixed plate 761 has a mold opening 764, which is used to cooperate with the forming mold opening 752 to limit the shape of the adsorbed fabric or film.

[0028] The limiting hole 763 is vertically opened through the top front end of the fixing plate 761, and the number of holes is the same as that of the positioning pin 4. The two are connected together. Setting the limiting hole 763, which is the same as that of the positioning pin 4, can have a better tight connection.

[0029] Working principle:

[0030] In use, place the fabric or film on the lower blister mold 7 and secure it. Pull down the handle 5 to flip the upper mold cover 1 downwards via the connecting buckle 6. The positioning pin 4 ensures a tighter fit between the upper mold cover 1 and the lower blister mold 7. Then, an external air pump creates negative pressure in the cavity of the lower blister mold 7, drawing the fabric or film onto the mold into shape. The fabric or film can be blister printing film, transfer film, leather, or absorbent shoe upper materials, etc. Subsequently, an external feeding machine is connected to the feeding port 3, and the heated powder or granular material to be shaped is injected. The feeding port 3 is connected to the injection port 1A on the mold opening 2. The heated powder or granular material is introduced into the cavity formed by the lower mold surface 75 and the upper mold cover 1 through the injection port 1A. At this time, the fabric or film is still adsorbed onto the forming mold opening 752 in the lower mold surface 75. The injected heated powder or granular material to be formed will flow to the surface of the fabric or film that has been adsorbed and formed. When the cavity is filled, the external material feeder stops the injection and waits for cooling and forming. After the formed powder or granular material is fixedly attached to the fabric or film, the upper mold cover 1 is opened to complete the process. It should be noted that if scraps or burrs are generated, they can be cleaned with a scraper or grinder.

[0031] The lower mold 71 is used for installation and connection, and simultaneously works with the mold opening 2 on the upper mold cover 1 to shape the injected heated powder or granular material. The upper mold cover 1 is flipped downwards and fitted by the connecting buckle 6. The positioning pin 4 and the positioning hole 73 can make the upper mold cover 1 and the lower mold 7 fit more tightly. The lower mold surface 75 is embedded in the top of the reserved groove 72 and forms a cavity with the reserved groove 72. During operation, the fabric or film is placed on the lower mold surface 75 and fixed by the pressing structure 76. Then, the locking buckle 77 and the locking lock 78 work together to make the pressing structure 76 fix the fabric or film more firmly. The air pump is connected to the air suction valve 74 to form a negative pressure in the cavity, which adsorbs and shapes the fabric or film placed on the lower mold surface 75. Then, the upper mold cover 1 is closed, and the lower mold surface 75 will fit with the upper mold surface 75. The upper mold cover 1 forms a sealed cavity. At this time, the fabric or film is still adsorbed on the lower mold surface 75. Then, the feed port 3 is connected to the external feeder for material injection. The injected heated powder or granular material enters the lower mold 71 and the mold opening 2 through the injection port 1A and flows to the surface of the fabric or film adsorbed on the lower mold 7. When the lower mold 71 and the mold opening 2 are filled with heated powder or granular material, the injection will stop. After the heated powder or granular material cools and solidifies, it will be fixedly attached to the fabric or film. It should be noted that when the lower mold 71 and the mold opening 2 are filled with heated powder or granular material, the feeder injection pressure increases significantly, thereby realizing the material cutting function. The feeders in the existing technology are generally equipped with a material cutting system. This is the existing technology, so it will not be described in detail.

[0032] The lower mold surface 75 includes an insert plate 751, a forming mold opening 752, and a suction hole 753. The insert plate 751 is used for installation and connection, and cooperates with the reserved groove 72 to form a cavity. The forming mold opening 752 is used to cooperate with the mold opening 2 to shape the injected heated powder or granular material. The suction hole 753 communicates with the cavity formed by the reserved groove 72 and the insert plate 751. Through the suction hole 753, the negative pressure formed in the cavity by the external air pump of the suction valve 74 can be transmitted to the fabric or film placed on the insert plate 751, so that it can be adsorbed and shaped at the forming mold opening 752.

[0033] The clamping structure 76 includes a fixing plate 761, a rotating buckle 762 is installed on the right side of the fixing plate 761, the fixing plate 761 and the rotating buckle 762 are used to fix the fabric or film placed on the embedded plate 751, the limiting hole 763 is used to cooperate with the positioning pin 4 to ensure the tightness of the connection, and the mold opening 764 is used to cooperate with the forming mold opening 752 to limit the shape of the adsorbed fabric or film.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyvinyl chloride (PVC) blowing blister, blowing and printing film paper mold, comprising an upper mold cover (1), the upper mold cover (1) is provided with a mold port (2) at the front end, and the right side of the upper mold cover (1) is provided with a feeding port (3), the mold port (2) is provided with a feeding port (1A) at the top, the feeding port (3) and the feeding port (1A) provided on the mold port (2) are in communication with each other, the upper mold cover (1) is provided with a positioning pin (4) at the top of the front end, and the upper mold cover (1) is provided with a handle (5) at the top end, and the upper mold cover (1) is provided with a connecting buckle (6) at the bottom. characterized in that It also includes a blister lower mold (7), the upper mold cover (1) is rotatably installed at the tail of the blister lower mold (7) through the connecting buckle (6), the blister lower mold (7) comprises a lower mold (71), a reserved groove (72), a positioning hole (73), an air suction valve (74), a lower mold surface (75), a compression structure (76), a lock buckle (77) and a lock (78), the lower mold (71) is provided with a connecting buckle (6) at the tail end, and the upper mold cover (1) is rotatably installed through the connecting buckle (6), the lower mold (71) is provided with a reserved groove (72) at the top middle part, and the lower mold (71) is provided with a positioning hole (73) at the top front part, the air suction valve (74) is provided through the lower mold (71), and one end is communicated with the reserved groove (72), the lower mold surface (75) is embedded and installed at the top of the reserved groove (72), and a cavity is formed in cooperation with the reserved groove (72), the compression structure (76) is rotatably installed on either side of the lower mold (71), the compression structure (76) is provided with a lock buckle (77) on the outside, the lock (78) is provided on either side of the lower mold (71), and the lock buckle (77) is connected with the lock (78).

2. A polyvinyl chloride (PVC) blow stretch, blow stretch printing film paper mold according to claim 1, characterized in that: The lower mold surface (75) comprises an embedded plate (751), a forming mold port (752) and an air suction hole (753), the embedded plate (751) is embedded and installed at the top of the reserved groove (72), and a cavity is formed in cooperation with the reserved groove (72), the forming mold port (752) is provided at the top middle part of the embedded plate (751), and the air suction hole (753) is provided on the forming mold port (752), the air suction hole (753) is communicated with the cavity formed by the reserved groove (72) and the embedded plate (751).

3. The polyvinyl chloride (PVC) blow stretch, blow stretch printing film paper mold according to claim 2, characterized in that: The air suction hole (753) is not less than two, and is provided through the forming mold port (752).

4. The polyvinyl chloride (PVC) blow stretch, blow stretch printing film paper mold of claim 1, wherein: the blow stretch printing film paper mold is a PVC blow stretch, blow stretch printing film paper mold. The compression structure (76) comprises a fixed plate (761), a rotating buckle (762), a limiting hole (763) and a model port (764), the fixed plate (761) is provided with a rotating buckle (762) and a lock buckle (77) on either side, the fixed plate (761) is rotatably installed on either side of the lower mold (71) through the rotating buckle (762), the limiting hole (763) is provided at the top of the front end of the fixed plate (761), and the top end of the fixed plate (761) is provided with a model port (764).

5. The polyvinyl chloride (PVC) blow stretch, blow stretch printing film paper mold according to claim 4, characterized in that: The limiting hole (763) is vertically provided through the top of the front end of the fixed plate (761), and the number of the limiting hole (763) is the same as that of the positioning pin (4), and the two are connected in cooperation.

6. The polyvinyl chloride (PVC) blow stretch, blow stretch printing film paper mold of claim 4, wherein: The positioning holes (73) are arranged in the same number as the positioning pins (4) and are connected in cooperation.

7. The polyvinyl chloride (PVC) blow stretch, blow stretch and print film paper mold of claim 4, wherein: The air suction valve (74) is arranged through the front and rear ends or the left and right sides of the lower die (71) at any place.

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