Plastic pipe injection mold

Abstract

The utility model discloses a plastic pipe injection mold and relates to the technical field of injection molds. The injection mold comprises a fixing plate and a connecting mold, one side of the fixing plate is connected with a transmission mold, the transmission mold is connected with the connecting mold in a clamped mode, a cooling assembly is arranged on the transmission mold, the inner side of the connecting mold is connected with an injection feeding pipe, and the inner side of the connecting mold is connected with a first sealing ring. The first sealing ring and the second sealing ring are in butt joint through butt joint of the transmission mold and the connecting mold, the injection molding groove is formed under the action of the shape of the inner mold, and injection molding is conveniently carried out on the interior of the injection molding groove through the injection molding feeding pipe to obtain a plastic pipe. Cooling liquid can be conveniently injected into the cooling groove and the multiple auxiliary holes through the water inlet pipe, auxiliary cooling can be conveniently conducted on the plastic pipe fitting through the cooling liquid, then the waiting time for cooling the pipe fitting is shortened, the injection molding efficiency can be improved, the cooling liquid can be conveniently discharged through the water outlet pipe for replacement, and operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and specifically relates to a plastic tube injection mold. Background Technology

[0002] Injection molds are tools used in the injection molding industry, working in conjunction with injection molding machines to give injection molded products a complete shape and precise dimensions. Therefore, there are many types and structures of injection molds. Currently, in the production process of plastic pipes, injection molds are required to mold the product. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes ranging from simple to complex, sizes ranging from large to small, and precise product dimensions. Therefore, it is widely used.

[0003] Chinese patent CN202321369774.2 discloses an injection mold, including a moving mold, a fixed mold and an injection system. A cavity is provided between the moving mold and the fixed mold. The cavity includes a back cavity with an injection port. The injection system injects plastic into the cavity through the injection port.

[0004] Currently, after injection molding, plastic pipes need to be left to cool before demolding. However, current molds generally do not have auxiliary cooling structures, so it takes a long time to wait for the plastic pipes to cool down, which reduces the frequency of injection molding and consequently reduces the efficiency of injection molding.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a plastic tube injection mold to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a plastic tube injection mold, comprising a fixed plate and a connecting mold. A transmission mold is connected to one side of the fixed plate, and the transmission mold is engaged with the connecting mold.

[0009] The transmission mold is equipped with a cooling component, the inner side of the connecting mold is connected to an injection feed pipe, the inner side of the connecting mold is connected to a first sealing ring, the inner side of the transmission mold is connected to a second sealing ring, the inner side of the connecting mold is connected to an inner mold, and an injection groove is provided between the first sealing ring, the second sealing ring and the inner mold.

[0010] The surface of the cooling component is connected to the inner side of the transmission mold to provide auxiliary cooling for the injection-molded plastic pipe.

[0011] Furthermore, the cooling assembly includes a cooling tank, several auxiliary holes, an inlet pipe, and an outlet pipe. The cooling tank is located inside the transmission mold, and each of the auxiliary holes is located inside the transmission mold. A sealing cover plate is snapped onto the surface of the cooling tank. The inlet pipe is located at the top of the transmission mold, and the outlet pipe is located at the bottom of the transmission mold.

[0012] Furthermore, each of the auxiliary holes is connected to the inner side of the cooling tank.

[0013] Furthermore, both the inlet pipe and the outlet pipe are connected to the inside of the cooling tank.

[0014] Furthermore, the first sealing ring and the second sealing ring engage accordingly.

[0015] Furthermore, four positioning rods are engaged on one side of the connecting mold.

[0016] Furthermore, four positioning slots are provided on the inner side of the fixing plate and the inner side of the transmission mold, and each pair of positioning slots is engaged with each positioning rod.

[0017] This utility model has the following beneficial effects:

[0018] This invention facilitates the connection between the transmission mold and the connecting mold, allowing the first sealing ring and the second sealing ring to align. The shape of the inner mold helps to form the injection tank. The injection feed pipe facilitates injection molding into the injection tank to obtain plastic pipes. The water inlet pipe facilitates the injection of coolant into the cooling tank and several auxiliary holes, enabling auxiliary cooling of the plastic pipes and reducing the waiting time for cooling, thus improving injection efficiency. The water outlet pipe facilitates the drainage and replacement of the coolant, making operation convenient.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the dispersed structure of this utility model;

[0023] Figure 3 This is one of the cross-sectional structural schematic diagrams of this utility model;

[0024] Figure 4 This is the second cross-sectional structural schematic diagram of the present invention;

[0025] Figure 5 This utility model Figure 4 A magnified structural diagram at point A;

[0026] Figure 6 This is the third cross-sectional structural schematic diagram of this utility model;

[0027] Figure 7 This utility model Figure 6 A magnified structural diagram at point B.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Fixing plate; 2. Cooling assembly; 21. Cooling tank; 22. Auxiliary hole; 23. Sealing cover plate; 24. Water inlet pipe; 25. Water outlet pipe; 3. Transmission mold; 4. Connecting mold; 5. Injection feed pipe; 6. Positioning groove; 7. First sealing ring; 8. Second sealing ring; 9. Inner mold; 10. Injection tank; 11. Positioning rod. Detailed Implementation

[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] Please see Figures 1-7 As shown, this utility model is a plastic pipe injection mold, including a fixing plate 1 and a connecting mold 4. A transmission mold 3 is connected to one side of the fixing plate 1, and the transmission mold 3 is engaged with the connecting mold 4.

[0033] The transmission mold 3 is provided with a cooling component 2, the inner side of the connecting mold 4 is connected with an injection feed pipe 5, the inner side of the connecting mold 4 is connected with a first sealing ring 7, the inner side of the transmission mold 3 is connected with a second sealing ring 8, the inner side of the connecting mold 4 is connected with an inner mold 9, and an injection groove 10 is provided between the first sealing ring 7, the second sealing ring 8 and the inner mold 9.

[0034] The surface of the cooling component 2 is connected to the inner side of the transmission mold 3 to provide auxiliary cooling for the injection-molded plastic pipe.

[0035] First, sufficient coolant is added to the cooling assembly 2. Then, the connecting mold 4 is connected to the external injection molding equipment. The fixing plate 1 is also fixed to the injection molding auxiliary equipment. Then, the injection molding equipment drives the transmission mold 3 to move horizontally to the right and engage with the connecting mold 4. Then, injection molding is performed into the injection tank 10 through the injection feed pipe 5. With the assistance of the inner mold 9, the injection tank 10 is matched with the inner mold to form a tubular part. During the injection molding process, the tubular part is cooled by the cooling effect of the cooling assembly 2. Then, the transmission mold 3 moves to the left again and separates from the connecting mold 4. The plastic tubular part, after injection molding and cooling, will fall off through the first sealing ring 7, the second sealing ring 8 and the inner mold 9. This process can be repeated to perform injection molding. When the external drive equipment drives the transmission mold 3 to move and engage with the connecting mold 4, it also drives the coolant inside the cooling assembly 2 to circulate, thereby making the coolant slosh and improving the cooling effect on the plastic tubular part. It also makes it easy to drain and replace the coolant, making the operation simple.

[0036] The connection between the transmission mold 3 and the connecting mold 4 facilitates the connection between the first sealing ring 7 and the second sealing ring 8. Under the shape of the inner mold 9, the injection mold 10 is formed. The injection feed pipe 5 facilitates the injection into the injection mold 10 to obtain plastic pipes. The cooling component 2 facilitates the auxiliary cooling of the plastic pipes, thereby reducing the waiting time for the pipes to cool and improving the injection efficiency.

[0037] In one embodiment, the cooling assembly 2 includes a cooling tank 21, a plurality of auxiliary holes 22, a water inlet pipe 24, and a water outlet pipe 25. The cooling tank 21 is opened on the inner side of the transmission mold 3, and each of the auxiliary holes 22 is opened on the inner side of the transmission mold 3. A sealing cover plate 23 is snapped onto the surface of the cooling tank 21. The water inlet pipe 24 is located at the top of the transmission mold 3, and the water outlet pipe 25 is located at the bottom of the transmission mold 3.

[0038] First, sufficient coolant is added to the cooling tank 21 through the inlet pipe 24. The coolant is stored inside the cooling tank 21 and several auxiliary holes 22 for subsequent cooling of the plastic pipe. Then, the connecting mold 4 is connected to the external injection molding equipment. The fixing plate 1 is also fixed to the injection molding auxiliary equipment. Next, the injection molding equipment drives the transmission mold 3 to move horizontally to the right and engage with the connecting mold 4. Then, injection molding is performed into the injection tank 10 through the injection feed pipe 5. The shape of the inner mold 9 helps the injection tank 10 to fit with it, thus forming a tubular part. During the injection molding process of the tubular part... The cooling tank 21 provides auxiliary cooling. After a certain cooling time, the transmission mold 3 is driven to move to the left, thus separating from the connecting mold 4. The injection-molded pipe then falls off the first sealing ring 7, the second sealing ring 8, and the inner mold 9. This injection molding operation is repeated. When the external drive device drives the transmission mold 3 to move and connect with the connecting mold 4, it also drives the coolant inside the cooling tank 21 to circulate, thereby making the coolant slosh and improving the cooling effect on the plastic pipe. The coolant inside the cooling tank 21 and the auxiliary hole 22 can be drained and replaced by opening the valve on the outlet pipe 25. The operation is simple.

[0039] The connection between the transmission mold 3 and the connecting mold 4 facilitates the connection between the first sealing ring 7 and the second sealing ring 8. Under the shape of the inner mold 9, the injection tank 10 is formed. The injection feed pipe 5 facilitates injection molding into the injection tank 10 to obtain plastic pipes. The water inlet pipe 24 facilitates the injection of coolant into the cooling tank 21 and several auxiliary holes 22, which facilitates the auxiliary cooling of the plastic pipes, thereby reducing the waiting time for cooling and improving injection efficiency. The water outlet pipe 25 facilitates the drainage and replacement of coolant, making operation convenient.

[0040] In one embodiment, each of the auxiliary holes 22 is connected to the inner side of the cooling tank 21, thereby facilitating the expansion of the contact surface between the coolant and the plastic pipe, and improving cooling efficiency.

[0041] In one embodiment, for the water inlet pipe 24, both the water inlet pipe 24 and the water outlet pipe 25 are connected to the inner side of the cooling tank 21, which facilitates the introduction of coolant into the cooling tank 21 and the drainage of coolant for replacement, thus helping to improve the cooling effect on the plastic pipe fittings.

[0042] In one embodiment, the first sealing ring 7 and the second sealing ring 8 are engaged with each other, thereby forming a tube cavity between the first sealing ring 7, the second sealing ring 8 and the inner mold 9, which facilitates the injection molding of the plastic tube.

[0043] In one embodiment, for the connecting mold 4, four positioning rods 11 are engaged on one side of the connecting mold 4, thereby facilitating the fixing of the connecting mold 4 by means of the positioning rods 11.

[0044] In one embodiment, for the aforementioned fixing plate 1, four positioning grooves 6 are provided on the inner side of the fixing plate 1 and the inner side of the transmission mold 3. Each pair of positioning grooves 6 is respectively engaged with each positioning rod 11, thereby facilitating the engagement of the positioning rod 11 with the positioning groove 6, thereby connecting the connecting mold 4 with the transmission mold 3 and the connecting mold 4, and avoiding skewing during injection molding.

[0045] In summary, using the above-mentioned technical solution of this utility model, firstly, sufficient coolant is added to the cooling tank 21 through the water inlet pipe 24. The coolant is stored inside the cooling tank 21 and several auxiliary holes 22 for subsequent cooling of the plastic pipe. Then, the connecting mold 4 is connected to the external injection molding equipment, and the fixing plate 1 is also fixed to the injection molding auxiliary equipment. Then, the injection molding equipment drives the transmission mold 3 to move horizontally to the right and engage with the connecting mold 4. Then, injection molding is performed into the injection tank 10 through the injection feed pipe 5. The shape of the inner mold 9 assists in making the injection tank 10 cooperate with it to obtain a tubular part. During the injection molding process of the tubular part, it is assisted in cooling by the cooling effect of the cooling tank 21. After a certain period of cooling, the drive mold 3 is driven to move to the left and separate from the connecting mold 4. Then the injection molded tubular part will fall off through the first sealing ring 7, the second sealing ring 8 and the inner mold 9. The injection molding operation is repeated. When the external drive device drives the drive mold 3 to move and connect with the connecting mold 4, it will also drive the coolant inside the cooling tank 21 to circulate, thereby making the coolant slosh to improve the cooling effect on the plastic tubular part. The coolant inside the cooling tank 21 and the auxiliary hole 22 can be drained and replaced by opening the valve on the outlet pipe 25. The operation is simple.

[0046] Through the above technical solution, the connection between the transmission mold 3 and the connecting mold 4 facilitates the connection between the first sealing ring 7 and the second sealing ring 8. Under the shape of the inner mold 9, the injection tank 10 is formed. The injection feed pipe 5 facilitates injection molding into the injection tank 10 to obtain plastic pipes. The water inlet pipe 24 facilitates the injection of coolant into the cooling tank 21 and several auxiliary holes 22, which facilitates the auxiliary cooling of the plastic pipes, thereby reducing the waiting time for cooling and improving injection efficiency. The water outlet pipe 25 facilitates the drainage and replacement of coolant, making operation convenient.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic pipe injection mold, comprising a fixed plate (1) and a connecting mold (4), one side of the fixed plate (1) is connected with a transmission mold (3), the transmission mold (3) is connected with the connecting mold (4) in a clamping manner, characterized in that: A cooling assembly (2) is arranged on the transmission mold (3), an injection feeding pipe (5) is connected to the inner side of the connecting mold (4), a first sealing ring (7) is connected to the inner side of the connecting mold (4), a second sealing ring (8) is connected to the inner side of the transmission mold (3), and an inner mold (9) is connected to the inner side of the connecting mold (4), an injection slot (10) is arranged between the first sealing ring (7), the second sealing ring (8) and the inner mold (9); The surface of the cooling assembly (2) is connected with the inner side of the transmission mold (3) for assisting cooling of the injection molded plastic pipe.

2. A plastic pipe injection mold according to claim 1, characterized in that, The cooling assembly (2) comprises a cooling groove (21), a plurality of auxiliary holes (22), a water inlet pipe (24) and a water outlet pipe (25), the cooling groove (21) is arranged on the inner side of the transmission mold (3), each auxiliary hole (22) is arranged on the inner side of the transmission mold (3), a sealing cover plate (23) is connected to the surface of the cooling groove (21) in a clamping manner, the water inlet pipe (24) is arranged at the top end of the transmission mold (3), and the water outlet pipe (25) is arranged at the bottom end of the transmission mold (3).

3. A plastic pipe injection mould according to claim 2, characterised in that Each auxiliary hole (22) is in communication with the inner side of the cooling groove (21).

4. A plastic pipe injection mold according to claim 2, wherein The water inlet pipe (24) and the water outlet pipe (25) are in communication with the inner side of the cooling groove (21).

5. A plastic pipe injection mold according to claim 1, wherein The first sealing ring (7) and the second sealing ring (8) are correspondingly clamped.

6. A plastic pipe injection mold according to claim 1, wherein Four positioning rods (11) are clamped on one side of the connecting mold (4).

7. A plastic pipe injection mould according to claim 6, characterised in that Four positioning grooves (6) are arranged on the inner side of the fixed plate (1) and the inner side of the transmission mold (3), and each two positioning grooves (6) are correspondingly clamped with each positioning rod (11).

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