Injection mold for PVC tee

Abstract

The utility model discloses a kind of injection mould for PVC three-way pipe, it is related to injection mould technical field, the problem that demoulding is inconvenient and injection molding effect is poor of existing device is solved, using the following scheme: the left and right ends of the base top surface are respectively fixedly installed with fixed plate, the injection mould for PVC three-way pipe, by the setting of hydraulic telescopic link and electric telescopic link, hydraulic telescopic link first drives upper mould to move upwards, then holds upper pipe, electric telescopic link respectively drives left mould and right mould to move to two sides, to make three-way pipe all leak in air, demoulding is simple and convenient, simultaneously by the setting of left mould core, right mould core and upper mould core, electric telescopic link respectively drives left mould and right mould to move together, to make left mould core and right film core merge together, hydraulic telescopic link drives upper mould to move downwards, to make upper mould core and left mould core and right film core merge into one whole, positioning is simple and convenient, to improve the effect of injection molding.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for PVC tee pipes. Background Technology

[0002] Injection mold processing involves first adding plastic into the mold, then rotating the mold continuously along two vertical axes and heating it. Under the influence of gravity and heat, the plastic inside the mold gradually and evenly coats, melts, and adheres to the entire surface of the mold cavity, forming the desired shape. The mold is then cooled and solidified to obtain the final product.

[0003] The patent application CN208035244U discloses a core assembly for a PVC tee pipe injection mold, including an upper vertical core, a lower vertical core, and a middle horizontal core. The middle horizontal core includes a core body and a horseshoe. The core body has a connecting groove at its end, and a movable groove is formed on the connecting groove of the core body. A movable shaft can be slidably installed in the movable groove. The shaping part has a shaping groove at its end, which ensures that the inner wall of the tee pipe will not be scratched during core pulling.

[0004] However, due to the design of the upper vertical core, lower vertical core, and middle horizontal core, it is inconvenient to move them when they are pulled out, which makes it difficult to demold the injection-molded tee tube. It is also inconvenient to remove them. In addition, since the upper vertical core, lower vertical core, and middle horizontal core are inserted into the injection mold before injection molding, the positioning of the upper vertical core, lower vertical core, and middle horizontal core is inconvenient and the placement of the core is prone to deviation, resulting in poor injection molding effect.

[0005] Therefore, we propose an injection mold for PVC tee pipes. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an injection mold for PVC tee pipes, which solves the problems of inconvenient demolding and poor injection molding effect of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an injection mold for PVC tee pipe, including a base, four sets of hydraulic telescopic rods are fixedly installed on the top surface of the base, and a top seat is fixedly installed on the top of the hydraulic telescopic rods;

[0008] Fixed plates are fixedly installed at the left and right ends of the top surface of the base, and an electric telescopic rod is fixedly installed on the inner side of the fixed plate. A left mold and a right mold are fixedly installed on the telescopic end of the electric telescopic rod, and an upper mold is fixedly installed on the bottom surface of the top seat. The left mold and the right mold are slidably connected to the base.

[0009] The left mold has a left through cavity on its right side, and a left mold core is fixedly installed at the center of the right side of the left through cavity. The left mold has an arc-shaped groove A on the top surface of the left through cavity on its right side, and a quarter-circular groove A is formed on the right side of the left mold core. The right mold has a right through cavity of the same specifications on its left side, and a right mold core of the same specifications is fixedly installed at the center of the left side of the right through cavity. The right mold has an arc-shaped groove B of the same specifications on its left side, and a groove B of the same specifications is formed on the left side of the right mold core. The bottom surface of the upper mold has an upper through cavity that matches the specifications of the arc-shaped groove A and arc-shaped groove B, and an upper mold core of the same specifications as groove A is fixedly installed at the center of the bottom surface of the upper through cavity.

[0010] Preferably, the top surface of the base is provided with a sliding groove, and the bottom surfaces of the left mold and the right mold are fixedly installed with sliders that are compatible with the specifications of the sliding groove, which can improve the stability of the sliding of the left mold and the right mold.

[0011] Preferably, the top surface of the top seat is equipped with an injection port, and the top surface of the upper cavity is provided with uniformly distributed injection holes that are connected to the injection port, so that the raw material can be uniformly injected into the three-way cavity.

[0012] Preferably, the left mold core has a mounting hole on its right side, and the right mold core has a mounting rod of the same specification fixedly installed on its left side, so that the left mold core and the right mold core can be positioned and spliced.

[0013] Preferably, the left mold has four sets of opposite insertion holes on its right side, and the right mold has four sets of matching insertion rods fixedly installed on its left side, which can improve the fit between the left and right molds.

[0014] Preferably, a positioning rod A is fixedly installed on the right edge of the bottom of the groove A, and a positioning rod B of the same specification is fixedly installed on the left edge of the bottom of the groove B. The bottom surface of the upper mold core is provided with positioning holes that are compatible with the specifications of the positioning rods A and B. This allows the upper mold to be positioned, thereby improving the injection molding effect.

[0015] 1. This injection mold for PVC tee pipes, through the setting of hydraulic telescopic rods and electric telescopic rods, after injection molding, the hydraulic telescopic rod first drives the upper mold to move upward, thereby exposing the upper pipe of the tee pipe to the air. Then, holding the upper pipe, the electric telescopic rod drives the left mold and the right mold to move to both sides respectively, thereby exposing the entire tee pipe to the air, making demolding simple and convenient.

[0016] 2. Simultaneously, by setting up the left mold core, right mold core, and upper mold core, the electric telescopic rod drives the left mold and right mold to move together, thereby merging the left mold core and right mold core together. Then, the upper mold core is matched with the specifications of the arc groove and recess, and the hydraulic telescopic rod drives the upper mold to move downward, thereby merging the upper mold core with the left mold core and right mold core into a whole. Positioning is simple and convenient, thereby improving the injection molding effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the base of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the left mold of this utility model;

[0020] Figure 4 This is a schematic diagram of the right mold of this utility model;

[0021] Figure 5 This is a schematic diagram of the upper mold of this utility model.

[0022] In the diagram: 1. Base; 2. Hydraulic telescopic rod; 3. Top seat; 4. Fixing plate; 5. Electric telescopic rod; 6. Left mold; 7. Right mold; 8. Left through cavity; 9. Left mold core; 10. Arc groove A; 11. Groove A; 12. Positioning rod A; 13. Mounting hole; 14. Insertion hole; 15. Right through cavity; 16. Right mold core; 17. Arc groove B; 18. Groove B; 19. Positioning rod B; 20. Mounting rod; 21. Insertion rod; 22. Slider; 23. Upper mold; 24. Upper through cavity; 25. Upper mold core; 26. Positioning hole; 27. Injection hole; 28. Injection port; 29. ​​Slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] like Figure 1-5As shown: Fixing plates 4 are fixedly installed on the left and right ends of the top surface of the base 1, respectively. Electric telescopic rods 5 are fixedly installed on the inner side of the fixing plates 4. Left mold 6 and right mold 7 are fixedly installed on the telescopic ends of the electric telescopic rods 5, respectively. Upper mold 23 is fixedly installed on the bottom surface of the top seat 3. Left mold 6 and right mold 7 are slidably connected to the base 1. With the setting of hydraulic telescopic rod 2 and electric telescopic rod 5, after injection molding, hydraulic telescopic rod 2 first drives upper mold 23 to move upward, thereby exposing the upper tube of the T-shaped pipe to the air. Then, holding the upper tube, the electric telescopic rod 5 drives left mold 6 and right mold 7 to move to both sides, thereby exposing the entire T-shaped pipe to the air. Demolding is simple and convenient.

[0026] Example 2

[0027] like Figure 2-5 As shown: A left through cavity 8 is provided on the right side of the left mold 6. A left mold core 9 is fixedly installed at the center of the right side of the left through cavity 8. An arc-shaped groove A10 is provided on the right side of the left mold 6, located on the top surface of the left through cavity 8. A quarter-circular groove A11 is provided on the right side of the left mold core 9. A right through cavity 15 with matching specifications is provided on the left side of the right mold 7. A right mold core 16 with matching specifications is fixedly installed at the center of the left side of the right through cavity 15. An arc-shaped groove B17 with matching specifications is provided on the left side of the right mold 7. A groove B18 with matching specifications is provided on the left side of the right mold core 16.

[0028] The bottom surface of the upper mold 23 has an upper through cavity 24 that matches the specifications of the arc groove A10 and arc groove B17. The center of the bottom surface of the upper through cavity 24 is fixedly installed with an upper mold core 25 that matches the specifications of the groove A11. With the setting of the left mold core 9, the right mold core 16 and the upper mold core 25, the electric telescopic rod 5 drives the left mold 6 and the right mold 7 to move together, thereby merging the left mold core 9 and the right mold core 16 together. Then, the upper mold core 25 matches the specifications of the arc groove and the groove, and the hydraulic telescopic rod 2 drives the upper mold 23 to move downward, thereby merging the upper mold core 25 with the left mold core 9 and the right mold core 16 into a whole. The positioning is simple and convenient, thereby improving the injection molding effect.

[0029] Example 3

[0030] like Figure 2-3 As shown: The top surface of the top seat 3 is equipped with an injection port 28, and the top surface of the upper cavity 24 is provided with evenly distributed injection holes 27 that are connected to the injection port 28, so that the raw material can be evenly injected into the three-way cavity.

[0031] The working principle and usage process of this utility model are as follows: When the device needs to work, the electric telescopic rod 5 drives the left mold 6 and the right mold 7 to move together. The mounting rod 20 is inserted into the mounting hole 13, and the insertion rod 21 is inserted into the insertion hole 14, thereby merging the left mold core 9 and the right mold core 16 together. Then, the upper mold core 25 is matched with the arc groove and the groove specifications. The hydraulic telescopic rod 2 drives the upper mold 23 to move downward, thereby merging the upper mold core 25 with the left mold core 9 and the right mold core 16 into a whole. Then, injection molding is performed through the injection port 28. After injection molding is completed, the hydraulic telescopic rod 2 first drives the upper mold 23 to move upward, thereby exposing the upper tube of the three-way pipe to the air. Then, the upper tube is held, and the electric telescopic rod 5 drives the left mold 6 and the right mold 7 to move to both sides, thereby exposing the entire three-way pipe to the air. Demolding is simple and convenient.

Claims

1. An injection mold for PVC tee pipe, comprising a base (1), wherein four sets of hydraulic telescopic rods (2) are fixedly installed on the top surface of the base (1), and a top seat (3) is fixedly installed on the top end of the hydraulic telescopic rods (2); Its features are: Fixed plates (4) are fixedly installed on the left and right ends of the top surface of the base (1), and electric telescopic rods (5) are fixedly installed on the inner side of the fixed plates (4). Left mold (6) and right mold (7) are fixedly installed on the telescopic ends of the electric telescopic rods (5), and upper mold (23) is fixedly installed on the bottom surface of the top seat (3). The left mold (6) and right mold (7) are slidably connected to the base (1). The left mold (6) has a left through cavity (8) on its right side. A left mold core (9) is fixedly installed at the center of the right side of the left through cavity (8). An arc-shaped groove A (10) is located on the top surface of the left through cavity (8) on the right side of the left mold (6). A quarter-circular groove A (11) is located on the right side of the left mold core (9). The right mold (7) has a right through cavity (15) of the same specifications on its left side. A standard-sized right through cavity (15) is fixedly installed at the center of the left side of the right through cavity (15). The right mold core (16) is adapted to the right mold (7). The left side of the right mold (7) is provided with an arc groove B (17) that is adapted to the right mold core (16). The left side of the right mold core (16) is provided with a groove B (18) that is adapted to the right mold core (16). The bottom surface of the upper mold (23) is provided with an upper through cavity (24) that is adapted to the specifications of the arc groove A (10) and the arc groove B (17). The center of the bottom surface of the upper through cavity (24) is fixedly installed with an upper mold core (25) that is adapted to the specifications of the groove A (11).

2. The injection mold for PVC tee pipe according to claim 1, characterized in that: The top surface of the base (1) is provided with a sliding groove (29), and the bottom surfaces of the left mold (6) and the right mold (7) are fixedly installed with sliders (22) that are compatible with the specifications of the sliding groove (29).

3. The injection mold for PVC tee pipe according to claim 1, characterized in that: The top surface of the top seat (3) is equipped with an injection port (28), and the top surface of the upper cavity (24) is provided with uniformly distributed injection holes (27) that are connected to the injection port (28).

4. The injection mold for PVC tee pipe according to claim 1, characterized in that: The left mold core (9) has a mounting hole (13) on its right side, and the right mold core (16) has a mounting rod (20) of the same specification fixedly installed on its left side.

5. The injection mold for PVC tee pipe according to claim 1, characterized in that: The left mold (6) has four sets of opposite insertion holes (14) on its right side, and the right mold (7) has four sets of matching insertion rods (21) fixedly installed on its left side.

6. The injection mold for PVC tee pipe according to claim 1, characterized in that: A positioning rod A (12) is fixedly installed on the right edge of the bottom of the groove A (11), and a positioning rod B (19) of the same specification is fixedly installed on the left edge of the bottom of the groove B (18). The bottom surface of the upper mold core (25) is provided with a positioning hole (26) that matches the specifications of the positioning rod A (12) and the positioning rod B (19).

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