Convenient-to-demould polyvinyl chloride sheath material production mould

Abstract

The utility model discloses a polyvinyl chloride sheath material production mould convenient to demould, which relates to the technical field of moulds, and comprises an upper mould, a lower mould, a bottom plate and smooth paper, the outer wall of the smooth paper is provided with an adhesive layer, the inner wall of the bottom plate is provided with a top mould groove, the inner wall of the top mould groove is provided with a top mould block, the bottom of the bottom plate is provided with a block body, and the bottom of the block body is provided with a top mould block. A threaded groove is formed in the inner wall of the block body, and a rotating screw is installed at the bottom of the top die block. According to the mold, the demolding auxiliary mechanism is installed, firstly, before production, smooth paper is adsorbed into the upper mold and the lower mold through the adhesive layer, the smooth paper does not react with production raw materials, then during demolding, the rotating screw rotates in the threaded groove, the top mold block is driven to move, and the mold block is driven to move; and the material is jacked up and demoulded by utilizing the jacking module, and the smooth paper can be regularly replaced and is used for assisting in discharging of the material.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for producing polyvinyl chloride sheathing materials which is convenient for demoulding. Background Art

[0002] The mold for the production of polyvinyl chloride (PVC) sheathing materials is one of the key equipment in the manufacturing process of wires and cables. The mold for the production of polyvinyl chloride sheathing materials is a mold specially used for extruding polyvinyl chloride sheathing materials. It is a device for shaping wire and cable products. In the production process of wires and cables, the mold plays an important role in controlling the thickness of the plastic extrusion layer and ensuring the geometric shape and structural form of the product.

[0003] Patent document CN210966519U discloses a bellows production mold, which discloses that "it includes a shell, a limiting groove is provided on the top of the shell, a slide groove is provided on the bottom of the shell, a first mold and a second mold are provided between the limiting groove and the slide groove, the first mold and the second mold have opposite sides that are in an inward-concave arc and are evenly provided with female molds, the second mold and the first mold have opposite sides that are in an inward-concave arc and are evenly provided with female molds, a barrel core is provided between the two inward-concave arcs of the first mold and the second mold, the outer diameter sleeve of the barrel core is connected to a rubber sleeve, and the outer surface of the rubber sleeve is evenly provided with male molds. In the utility model, the first mold and the second mold are first closed, and the wall thickness difference of the formed bellows is controlled within a very small range through the extrusion between the female molds on the first mold and the second mold and the male mold on the rubber sleeve, thereby improving the processing accuracy of the bellows and worthy of vigorous promotion."

[0004] However, the bellows production mold disclosed in the above-mentioned document mainly considers improving the processing accuracy of the bellows, which is worthy of being widely promoted, but is not convenient for demoulding the product after production.

[0005] In view of this, it is necessary to develop a demoulding auxiliary mechanism to facilitate the demoulding of the product after production. Utility Model Content

[0006] The purpose of the utility model is to provide a mold for producing polyvinyl chloride sheathing materials with convenient demoulding, so as to solve the technical problem proposed in the above background technology of making the mold for producing polyvinyl chloride sheathing materials have a convenient demoulding function.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a mold for producing polyvinyl chloride sheathing material with convenient demolding, comprising: an upper mold, a lower mold provided at the bottom of the upper mold, bottom plates provided on the outer walls of the upper mold and the lower mold, a demolding auxiliary mechanism provided on the inner wall of the upper mold, the demolding auxiliary mechanism being used to facilitate demolding of the product after production;

[0008] The demolding auxiliary mechanism includes smooth paper, which is arranged inside the upper mold and the lower mold. The outer wall of the smooth paper is installed with an adhesive layer. The inner wall of the bottom plate is provided with a top mold groove. The inner wall of the top mold groove is provided with a top module. The bottom of the bottom plate is installed with a block. The inner wall of the block is provided with a threaded groove. The bottom of the top module is installed with a rotating screw.

[0009] Preferably, a cooling mechanism is provided on the top of the upper mold and the lower mold, and the cooling mechanism is used to cool the product to avoid excessively high residual temperature of the product.

[0010] Preferably, the cooling mechanism comprises a cooling box, and the cooling box is arranged on the outer walls of the upper mold and the lower mold.

[0011] Preferably, a cooling liquid tank is provided on the top of the cooling box, and a piston is installed on the inner wall of the cooling liquid tank.

[0012] Preferably, a liquid exchange pipe is installed on the outer wall of the cooling box, and a spherical valve is installed on the inner wall of the liquid exchange pipe.

[0013] Preferably, a strong magnet is installed on the outer wall of the lower mold.

[0014] Preferably, a rotating rod is installed on the outer wall of the strong magnet.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is equipped with a demoulding auxiliary mechanism, which facilitates demoulding of the product after production. Existing molds are inconvenient to demould, so this needs to be improved. First, before production, smooth paper is adsorbed on the inside of the upper and lower molds through an adhesive layer. The smooth paper will not react with the production materials. Then, during demoulding, the rotating screw rotates in the thread groove, driving the lifting module to move. The lifting module is then used to lift the material and demould it. The smooth paper can be replaced regularly to assist in material discharge.

[0017] 2. The utility model cools the product by installing a cooling mechanism to avoid the situation where the residual temperature of the product is too high. First, the coolant is added to the cooling box through the cooling liquid tank, and then the cooling liquid tank is sealed with a piston. When the material passes through the outer wall of the cooling box during the discharge process, it will fit with it, thereby reducing the residual temperature of the material. At the same time, the rotating rod can be pulled and held, and then the material can be rotated in multiple directions by the rotating rod to cool it down. The liquid exchange pipe is used to discharge the water in the cooling box, thereby facilitating the cooling of the product and avoiding the situation where the residual temperature of the product is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the rotating rod portion of the utility model;

[0021] Figure 4 This is a partial structural diagram of the cooling box of the present utility model.

[0022] In the figure: 1. Upper mold; 2. Lower mold; 3. Bottom plate; 4. Smooth paper; 5. Adhesive layer; 6. Top mold groove; 7. Top module; 8. Block; 9. Thread groove; 10. Rotating screw; 11. Cooling box; 12. Strong magnet; 13. Rotating rod; 14. Cooling liquid tank; 15. Piston; 16. Liquid exchange tube; 17. Ball valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] See also Figure 1 and Figure 2A mold for producing polyvinyl chloride sheathing materials with convenient demolding includes: an upper mold 1, a lower mold 2 is provided at the bottom of the upper mold 1, and the outer walls of the upper mold 1 and the lower mold 2 are both provided with a bottom plate 3. The upper mold 1 and the lower mold 2 are assembled, and then the polyvinyl chloride sheathing material is molded and produced through the molding grooves of the upper mold 1 and the lower mold 2.

[0027] See also Figure 2 and Figure 3 The inner wall of the upper mold 1 is provided with a demoulding auxiliary mechanism, which is used to facilitate demoulding of the product after production. The demoulding auxiliary mechanism includes smooth paper 4, which is arranged inside the upper mold 1 and the lower mold 2. The outer wall of the smooth paper 4 is installed with an adhesive layer 5, the inner wall of the bottom plate 3 is provided with a top mold groove 6, and the inner wall of the top mold groove 6 is provided with a top module 7. The bottom of the bottom plate 3 is installed with a block 8, and the inner wall of the block 8 is provided with a threaded groove 9. The bottom of the top module 7 is installed with a rotating screw 10. The existing mold is not convenient for demoulding, so it needs to be improved. First, before production, the smooth paper 4 is adsorbed on the inside of the upper mold 1 and the lower mold 2 through the adhesive layer 5, and the smooth paper 4 will not react with the production raw materials. Then, during demoulding, the rotating screw 10 rotates in the threaded groove 9, which drives the top module 7 to move, and the top module 7 is used to lift and demould the material. The smooth paper 4 can be replaced regularly to assist the material in discharging.

[0028] See also Figure 3 and Figure 4 A cooling mechanism is provided on the top of the upper mold 1 and the lower mold 2. The cooling mechanism is used to cool the product to avoid excessive residual temperature of the product. The cooling mechanism includes a cooling box 11. The cooling box 11 is provided on the outer wall of the upper mold 1 and the lower mold 2. A cooling liquid tank 14 is provided on the top of the cooling box 11. A piston 15 is installed on the inner wall of the cooling liquid tank 14. A liquid exchange pipe 16 is installed on the outer wall of the cooling box 11. A ball valve 17 is installed on the inner wall of the liquid exchange pipe 16. A strong magnet 12 is installed on the outer wall of the lower mold 2. It is equipped with a rotating rod 13. First, the coolant is added to the cooling box 11 through the cooling liquid tank 14, and then the cooling liquid tank 14 is sealed by the piston 15. When the material passes through the outer wall of the cooling box 11 during the discharging process, it will adhere to it, thereby reducing the residual temperature of the material. At the same time, the rotating rod 13 can be pulled and held, and then the material can be rotated in multiple directions by the rotating rod 13 to cool it down. The liquid exchange pipe 16 is used to discharge the water in the cooling box 11, thereby facilitating the cooling of the product and avoiding the situation where the residual temperature of the product is too high.

[0029] Working principle: the upper mold 1 and the lower mold 2 are assembled, and then the polyvinyl chloride sheathing material is molded and produced through the molding grooves of the upper mold 1 and the lower mold 2. The existing mold is not convenient for demoulding, so it is necessary to improve it. First, before production, the smooth paper 4 is adsorbed on the inside of the upper mold 1 and the lower mold 2 through the adhesive layer 5, and the smooth paper 4 will not react with the production raw materials. Then, when demoulding, the rotating screw 10 rotates in the thread groove 9, which drives the top module 7 to move, and the top module 7 is used to lift and demould the material, and the smooth paper 4 can It is replaced regularly and used to assist in the discharge of materials. First, the coolant is added to the cooling box 11 through the cooling liquid tank 14, and then the cooling liquid tank 14 is sealed with the piston 15. When the material is discharged, it will pass through the outer wall of the cooling box 11 and fit with it, thereby reducing the residual temperature of the material. At the same time, the rotating rod 13 can be pulled and held, and then the rotating rod 13 can be used to rotate the material in multiple directions to cool it down. The liquid exchange pipe 16 is used to discharge the water in the cooling box 11, thereby facilitating the cooling of the product and avoiding the situation where the residual temperature of the product is too high.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mold for producing polyvinyl chloride sheathing material with convenient demoulding, characterized in that: The invention comprises: an upper mold (1), a lower mold (2) is provided at the bottom of the upper mold (1), the outer walls of the upper mold (1) and the lower mold (2) are both provided with a bottom plate (3), and the inner wall of the upper mold (1) is provided with a demoulding auxiliary mechanism, and the demoulding auxiliary mechanism is used to facilitate demoulding of the product after production; The demoulding auxiliary mechanism comprises a smooth paper (4), which is arranged inside the upper mold (1) and the lower mold (2), an adhesive layer (5) is installed on the outer wall of the smooth paper (4), an upper mold groove (6) is provided on the inner wall of the bottom plate (3), a top mold module (7) is provided on the inner wall of the top mold groove (6), a block (8) is installed on the bottom of the bottom plate (3), a threaded groove (9) is provided on the inner wall of the block (8), and a rotating screw (10) is installed on the bottom of the top mold module (7).

2. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 1, characterized in that: A cooling mechanism is provided on the top of the upper mold (1) and the lower mold (2), and the cooling mechanism is used to cool the product to avoid excessive residual temperature of the product.

3. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 2, characterized in that: The cooling mechanism comprises a cooling box (11), and the cooling box (11) is arranged on the outer walls of the upper mold (1) and the lower mold (2).

4. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 3, characterized in that: A cooling liquid tank (14) is provided on the top of the cooling box (11), and a piston (15) is installed on the inner wall of the cooling liquid tank (14).

5. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 4, characterized in that: A liquid exchange pipe (16) is installed on the outer wall of the cooling box (11), and a spherical valve (17) is installed on the inner wall of the liquid exchange pipe (16).

6. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 1, characterized in that: A strong magnet (12) is installed on the outer wall of the lower mold (2).

7. The mold for producing polyvinyl chloride sheathing material with easy demoulding according to claim 6, characterized in that: A rotating rod (13) is installed on the outer wall of the strong magnet (12).

Images