Jet-propelled plastic connecting piece injection mold

Abstract

The utility model provides a jet-propelled plastic connecting piece injection mold, which relates to the technical field of injection molds and comprises a base, a lower mold is arranged at the top of the base, two storage grooves are formed in the bottom of the lower mold in a penetrating manner, two penetrating openings are formed in the top of the base in a penetrating manner, and fixing pipes are slidably mounted in the two penetrating openings. And clamping blocks are fixedly mounted at one ends of the two second springs. During replacement, a worker pulls a pulling plate, the pulling plate drives a connecting rod to move, a clamping block leaves a clamping groove, then the worker pulls out a fixing pipe, a fixing needle is rotated, a second threaded rod leaves a threaded groove, then the fixing needle corresponding to the shape of the top of the mold storage groove is replaced, the second threaded rod is rotated to enter the threaded groove, and the mold storage groove is replaced. The fixing pipe is inserted into the penetrating opening, the pulling plate is loosened, the clamping block enters the clamping groove under the elastic force effect of the second spring, the fixing pipe is fixed, replacement can be completed in this way, and the quality of the connecting piece after injection molding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a jet-type plastic connector. Background Art

[0002] Injection molds are tools for producing plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes; specifically, the heated and melted plastic is injected into the mold cavity by the injection molding machine under high pressure, and after cooling and solidification, a molded product is obtained. Existing molds need to be demolded after injection molding. During the demolding process, the air in the mold cavity is discharged during the solidification process of the liquid plastic, resulting in a vacuum between the injection molded part and the mold core, and the injection molded part is adsorbed on the surface of the mold core and is difficult to remove.

[0003] In the prior art, such as the Chinese patent CN 218196628 U, an injection mold for a plastic pipe connector includes a male mold and a female mold, the female mold includes a lower mold plate for fixing and connecting the lower mold core by bolts, support plates are provided on both sides of the lower surface of the lower mold plate, a lower fixed plate is provided below the support plate, and a demoulding auxiliary mechanism is provided on one side of the female mold; the demoulding auxiliary mechanism includes a hydraulic cylinder, the hydraulic cylinder is fixedly connected to a receiving groove on the side of the lower fixed plate away from the upper mold by bolts, the output end of the hydraulic cylinder is fixedly connected to one end of the fixed needle, and a gravity sensor for monitoring the opening and closing of the male and female molds is installed on the female mold, and the opening and closing between the two is sensed by the gravity sensor to control the demoulding auxiliary mechanism to blow air to the female mold through an air pump when demoulding, and the injection molded part is blown out of the mold core by the high-pressure gas by blowing gas to the lower mold core, so as to prevent it from being bonded to the mold core and the mold cavity. However, the patent still has the following problems.

[0004] In the above patent, although the patent prevents the injection molded part from sticking to the mold core and the mold cavity by blowing gas out of the mold core with high-pressure gas, during injection molding, the top of the fixing pin needs to be on the same plane as the top of the through hole to prevent the shape of the connector at this point from being different from the required shape at the end of the injection molding, thereby affecting the quality. However, if other molds are replaced, the top of the through hole of other molds may not be a plane but other shapes, thereby reducing the production quality. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that when other molds are replaced, the top of the through hole of other molds may not be a plane but other shapes, so the top of the fixing pin may not be on the same plane as the top of the through hole, and proposes a jet-type plastic connector injection mold.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a jet-type plastic connector injection mold, comprising a base, a lower mold is arranged on the top of the base, two storage grooves are penetrated at the bottom of the lower mold, two through-holes are penetrated at the top of the base, fixed tubes are slidably installed inside the two through-holes, connecting grooves are arranged on the inner walls of the two through-holes, two second springs are fixedly installed on the inner walls of the connecting grooves, a clamping block is fixedly installed at one end of the two second springs, a connecting rod is fixedly installed at one end of the clamping block close to the second spring, an operating groove is arranged at the bottom of the base, one end of the connecting rod away from the clamping block penetrates the connecting groove into the operating groove and is fixedly installed with a pull plate, a clamping groove is arranged on the opposite sides of the two fixed tubes, a second electric telescopic rod is fixedly installed at the bottom of the two fixed tubes, a connecting block is fixedly installed at the telescopic end of the second electric telescopic rod, a second threaded rod is fixedly installed on the top of the connecting block, a fixing pin is arranged on the top of the connecting block, a threaded groove is arranged at the bottom of the fixing pin, and the threaded groove is threadedly connected to the second threaded rod.

[0007] Preferably, an L-shaped plate is fixedly installed at the bottom of the base, an air pump is fixedly installed on the top of the L-shaped plate, a connecting pipe is fixedly connected between the two fixed pipes, and a telescopic hose is fixedly connected between the output end of the air pump and the connecting pipe.

[0008] Preferably, two fixed plates are symmetrically installed on the top of the base, a first threaded rod is rotatably installed between the two fixed plates, a motor is fixedly installed on one end of one of the two fixed plates away from the first threaded rod, and the output end of the motor passes through the fixed plate and is fixedly connected to the first threaded rod.

[0009] Preferably, the outer wall of the first threaded rod is threadedly connected to two slides, and clamps are fixedly installed on opposite sides of the two slides. Fixed grooves are opened on both sides of the lower mold, and the two clamps are respectively embedded in the two fixed grooves.

[0010] Preferably, a limiting rod is fixedly installed between the two fixing plates, and the limiting rod passes through the two sliding plates and is slidably connected to the sliding plates.

[0011] Preferably, two support plates are symmetrically installed on both sides of the base, and first electric telescopic rods are fixedly installed on the bottom of the two support plates. The telescopic ends of the two first electric telescopic rods respectively penetrate the two support plates and are fixedly installed with moving plates.

[0012] Preferably, an upper mold is arranged between the two movable plates, clamping grooves are provided on both sides of the upper mold, and limiting grooves are provided on the opposite sides of the two movable plates, an electromagnet is fixedly installed on the inner wall of the limiting groove, a first spring is fixedly installed on one end of the electromagnet, a top block is fixedly installed on the end of the first spring away from the electromagnet, and the top block is embedded in the clamping groove.

[0013] Preferably, an injection hole is formed through the top of the upper mold.

[0014] Preferably, the outer wall of the fixing needle fits with the inner wall of the storage groove.

[0015] Preferably, support frames are fixedly mounted on the four corners of the bottom of the base.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] 1. In the utility model, when replacing, the staff pulls the pull plate, the pull plate drives the connecting rod to move, the block leaves the slot, and then the staff pulls out the fixed tube, and then rotates the fixed needle, the second threaded rod leaves the threaded groove, and then replaces the fixed needle corresponding to the shape of the top of the mold storage groove, rotates the second threaded rod into the threaded groove, inserts the fixed tube into the through-hole, loosens the pull plate, and the block enters the slot under the elastic force of the second spring to fix the fixed tube. In this way, the replacement is completed, which improves the quality of the connector after injection molding.

[0018] 2. In the utility model, when replacing, the staff places the new lower mold at the top center of the base, starts the motor, the first threaded rod rotates, and the two slides approach each other until the two clamping plates enter the two fixed grooves respectively. At this time, the lower mold is fixed at the top center of the base, and the storage groove is directly above the through-opening. When replacing the upper mold, the staff starts the electromagnet, the electromagnet generates magnetic force, and the iron top block is attracted to enter the limit groove, and then the upper mold is placed between the two movable plates, the electromagnet is turned off, and the top block enters the clamping groove under the elastic force of the first spring, and the upper mold is fixed, which facilitates the fixation and replacement of the upper and lower molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model provides an overall stereogram of a jet-type plastic connector injection mold;

[0020] Figure 2 Another perspective view of a jet-type plastic connector injection mold proposed by the utility model;

[0021] Figure 3 A cross-sectional view of a base of a jet-type plastic connector injection mold is provided for the utility model;

[0022] Figure 4 The utility model provides a three-dimensional diagram of the internal structure of a fixed tube of an injection mold for a jet-type plastic connector;

[0023] Figure 5 A cross-sectional view of a movable plate of a jet-type plastic connector injection mold is provided for the utility model;

[0024] Figure 6 for Figure 3 Enlarged view of point A.

[0025] Legend: 1. Base; 2. Support frame; 3. Fixed plate; 4. First threaded rod; 5. Motor; 6. Limit rod; 7. Slide plate; 8. Clamp plate; 9. Support plate; 10. First electric telescopic rod; 11. Moving plate; 12. Upper mold; 13. Lower mold; 14. Injection hole; 15. L-shaped plate; 16. Air pump; 17. Telescopic hose; 18. Fixed groove; 19. Fixed pipe; 20. Storage groove; 21. Through-hole; 22. Connecting pipe; 23. Second electric telescopic rod; 24. Connecting block; 25. Second threaded rod; 26. Fixed needle; 27. Threaded groove; 28. Clamping groove; 29. ​​Limiting groove; 30. Electromagnet; 31. First spring; 32. Top block; 33. Clamping groove; 34. Connecting groove; 35. Second spring; 36. Clamping block; 37. Connecting rod; 38. Pull plate; 39. Operating groove. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0028] Embodiment 1, as Figure 1-Figure 6As shown, the utility model provides a jet-type plastic connector injection mold, including a base 1, a lower mold 13 is arranged on the top of the base 1, two storage grooves 20 are penetrated and opened at the bottom of the lower mold 13, two through-holes 21 are penetrated and opened at the top of the base 1, and fixed tubes 19 are slidably installed inside the two through-holes 21, and connecting grooves 34 are arranged on the inner walls of the two through-holes 21, and two second springs 35 are fixedly installed on the inner walls of the connecting grooves 34, and a clamping block 36 is fixedly installed at one end of the two second springs 35, and a connecting rod 37 is fixedly installed at one end of the clamping block 36 close to the second spring 35, and the bottom An operating groove 39 is provided at the bottom of the seat 1, and one end of the connecting rod 37 away from the clamping block 36 passes through the connecting groove 34 and enters the operating groove 39 and is fixedly installed with a pull plate 38. A clamping groove 28 is provided on the opposite sides of the two fixed tubes 19, and a second electric telescopic rod 23 is fixedly installed at the bottom of the two fixed tubes 19. A connecting block 24 is fixedly installed at the telescopic end of the second electric telescopic rod 23, and a second threaded rod 25 is fixedly installed on the top of the connecting block 24. A fixing pin 26 is provided at the top of the connecting block 24, and a threaded groove 27 is provided at the bottom of the fixing pin 26, and the threaded groove 27 is threadedly connected to the second threaded rod 25.

[0029] The effect achieved by the entire embodiment 1 is that, during replacement, the staff pulls the pull plate 38, the pull plate 38 drives the connecting rod 37 to move, the block 36 leaves the slot 28, and then the staff pulls out the fixing tube 19, and then rotates the fixing needle 26, the second threaded rod 25 leaves the thread groove 27, and then replaces the fixing needle 26 corresponding to the top shape of the mold storage groove 20, rotates the second threaded rod 25 into the thread groove 27, inserts the fixing tube 19 into the through-hole 21, releases the pull plate 38, and the block 36 enters the slot 28 under the elastic force of the second spring 35, fixes the fixing tube 19, and the replacement is completed in this way, thereby improving the quality of the connector after injection molding.

[0030] Embodiment 2, as Figure 1-Figure 6 As shown, further, an L-shaped plate 15 is fixedly installed at the bottom of the base 1, an air pump 16 is fixedly installed on the top of the L-shaped plate 15, a connecting pipe 22 is fixedly connected between the two fixed pipes 19, and a telescopic hose 17 is fixedly connected between the output end of the air pump 16 and the connecting pipe 22.

[0031] Furthermore, two fixed plates 3 are symmetrically installed on the top of the base 1, and a first threaded rod 4 is rotatably installed between the two fixed plates 3. A motor 5 is fixedly installed on one end of the two fixed plates 3 away from the first threaded rod 4, and the output end of the motor 5 passes through the fixed plate 3 and is fixedly connected to the first threaded rod 4.

[0032] Furthermore, two slide plates 7 are threadedly connected to the outer wall of the first threaded rod 4 , and clamping plates 8 are fixedly installed on opposite sides of the two slide plates 7 . Fixing grooves 18 are opened on both sides of the lower mold 13 , and the two clamping plates 8 are respectively engaged with the two fixing grooves 18 .

[0033] Furthermore, a limit rod 6 is fixedly installed between the two fixing plates 3 , and the limit rod 6 passes through the two sliding plates 7 and is slidably connected to the sliding plates 7 .

[0034] Furthermore, two support plates 9 are symmetrically installed on both sides of the base 1, and first electric telescopic rods 10 are fixedly installed at the bottom of the two support plates 9. The telescopic ends of the two first electric telescopic rods 10 respectively penetrate the two support plates 9 and are fixedly installed with moving plates 11.

[0035] Furthermore, an upper mold 12 is arranged between the two movable plates 11, and clamping grooves 33 are provided on both sides of the upper mold 12. Limiting grooves 29 are provided on the opposite sides of the two movable plates 11. An electromagnet 30 is fixedly installed on the inner wall of the limiting groove 29, and a first spring 31 is fixedly installed at one end of the electromagnet 30. A top block 32 is fixedly installed on the end of the first spring 31 away from the electromagnet 30, and the top block 32 is embedded in the clamping groove 33.

[0036] Furthermore, an injection hole 14 is formed through the top of the upper mold 12 .

[0037] Furthermore, the outer wall of the fixing needle 26 is in contact with the inner wall of the storage tank 20 to prevent liquid plastic from entering the storage tank 20 during injection molding.

[0038] Furthermore, support frames 2 are fixedly installed at the four corners of the bottom of the base 1.

[0039] The effect achieved by the entire embodiment 2 is that, when replacing, the staff places the new lower mold 13 at the top center of the base 1, starts the motor 5, the first threaded rod 4 rotates, and the two slides 7 approach each other until the two clamping plates 8 enter the two fixed grooves 18 respectively. At this time, the lower mold 13 is fixed at the top center of the base 1, and the storage groove 20 is directly above the through-opening 21. When replacing the upper mold 12, the staff starts the electromagnet 30, the electromagnet 30 generates magnetic force, and the iron top block 32 is attracted to enter the limit groove 29, and then the upper mold 12 is placed between the two movable plates 11, and the electromagnet 30 is turned off. The top block 32 enters the clamping groove 33 under the elastic force of the first spring 31, and the upper mold 12 is fixed, which facilitates the fixation and replacement of the upper mold 12 and the lower mold 13.

[0040] Working principle: During injection molding, the staff starts the first electric telescopic rod 10, and the moving plate 11 and the upper mold 12 descend until the upper mold 12 fits with the lower mold 13, and then passes the liquid plastic into the injection hole 14 and starts cooling until the connector is formed. When demoulding, the staff starts the second electric telescopic rod 23, and the fixed needle 26 descends. When the fixed needle 26 moves to the bottom of the connecting tube 22, the staff starts the air pump 16, and the air pump 16 blows air into the telescopic hose 17, and then enters the fixed tube 19 through the connecting tube 22, and finally blows from the storage groove 20 to the connecting piece to blow the connecting piece out. When replacing, the staff pulls the pull plate 38, and the pull plate 38 drives the connecting rod 37 to move, and the block 36 leaves the slot 28. Then the staff pulls out the fixed tube 19, and then rotates the fixed needle 26, and the second threaded rod 25 leaves the threaded groove 27. Then replace the fixed needle 26 corresponding to the top shape of the mold storage groove 20, rotate the second threaded rod 25 into the threaded groove 27, insert the fixed tube 19 into the through-hole 21, release the pull plate 38, and the block 36 enters the slot 28 under the elastic force of the second spring 35 to fix the fixed tube 19. In this way, the replacement can be completed, which improves the quality of the connecting piece after injection molding. Then the staff places the new lower mold 13 at the top center of the base 1, starts the motor 5, the first threaded rod 4 rotates, and the two slides 7 approach each other until the two clamping plates 8 enter the two fixed grooves 18 respectively. At this time, the lower mold 13 is fixed at the top center of the base 1, and the storage groove 20 is directly above the through-hole 21. When replacing the upper mold 12, the staff starts the electromagnet 30, the electromagnet 30 generates magnetic force, and the iron top block 32 is attracted to enter the limit groove 29, and then the upper mold 12 is placed between the two movable plates 11, and the electromagnet 30 is turned off. The top block 32 enters the clamping groove 33 under the elastic force of the first spring 31, and the upper mold 12 is fixed, which facilitates the fixation and replacement of the upper mold 12 and the lower mold 13.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A jet-type plastic connector injection mold, comprising a base (1), characterized in that: A lower mold (13) is arranged on the top of the base (1), and two storage grooves (20) are formed through the bottom of the lower mold (13). Two through openings (21) are formed through the top of the base (1), and fixed tubes (19) are slidably installed inside the two through openings (21). A connecting groove (34) is formed on the inner wall of the two through openings (21), and two second springs (35) are fixedly installed on the inner wall of the connecting groove (34). A clamping block (36) is fixedly installed on one end of the two second springs (35), and a connecting rod (37) is fixedly installed on one end of the clamping block (36) close to the second spring (35). An operating groove (39) is formed on the bottom of the base (1), and the One end of the connecting rod (37) away from the clamping block (36) passes through the connecting groove (34) and enters the operating groove (39) and is fixedly installed with a pull plate (38); a clamping groove (28) is provided on opposite sides of the two fixed tubes (19); a second electric telescopic rod (23) is fixedly installed at the bottom of the two fixed tubes (19); a connecting block (24) is fixedly installed at the telescopic end of the second electric telescopic rod (23); a second threaded rod (25) is fixedly installed at the top of the connecting block (24); a fixing pin (26) is provided at the top of the connecting block (24); a threaded groove (27) is provided at the bottom of the fixing pin (26); and the threaded groove (27) is threadedly connected to the second threaded rod (25).

2. The jet-type plastic connector injection mold according to claim 1, characterized in that: An L-shaped plate (15) is fixedly mounted on the bottom of the base (1), an air pump (16) is fixedly mounted on the top of the L-shaped plate (15), a connecting pipe (22) is fixedly connected between the two fixed pipes (19), and a telescopic hose (17) is fixedly connected between the output end of the air pump (16) and the connecting pipe (22).

3. The jet-type plastic connector injection mold according to claim 1, characterized in that: Two fixing plates (3) are symmetrically mounted on the top of the base (1); a first threaded rod (4) is rotatably mounted between the two fixing plates (3); a motor (5) is fixedly mounted on one end of one of the two fixing plates (3) away from the first threaded rod (4); an output end of the motor (5) passes through the fixing plate (3) and is fixedly connected to the first threaded rod (4).

4. The jet-type plastic connector injection mold according to claim 3, characterized in that: The outer wall of the first threaded rod (4) is threadedly connected to two slide plates (7), and clamping plates (8) are fixedly installed on opposite sides of the two slide plates (7). Both sides of the lower mold (13) are provided with fixing grooves (18), and the two clamping plates (8) are respectively engaged with the two fixing grooves (18).

5. The jet-type plastic connector injection mold according to claim 3, characterized in that: A limiting rod (6) is fixedly installed between the two fixing plates (3), and the limiting rod (6) passes through the two sliding plates (7) and is slidably connected to the sliding plates (7).

6. The jet-type plastic connector injection mold according to claim 1, characterized in that: Two support plates (9) are symmetrically mounted on both sides of the base (1); first electric telescopic rods (10) are fixedly mounted on the bottoms of the two support plates (9); the telescopic ends of the two first electric telescopic rods (10) respectively penetrate the two support plates (9) and are fixedly mounted with moving plates (11).

7. The jet-type plastic connector injection mold according to claim 6, characterized in that: An upper mold (12) is arranged between the two movable plates (11), and clamping grooves (33) are provided on both sides of the upper mold (12). A limiting groove (29) is provided on the opposite side of the two movable plates (11), and an electromagnet (30) is fixedly installed on the inner wall of the limiting groove (29). A first spring (31) is fixedly installed at one end of the electromagnet (30), and a top block (32) is fixedly installed at one end of the first spring (31) away from the electromagnet (30), and the top block (32) is embedded in the clamping groove (33).

8. The jet-type plastic connector injection mold according to claim 7, characterized in that: An injection hole (14) is formed through the top of the upper mold (12).

9. The jet-type plastic connector injection mold according to claim 1, characterized in that: The outer wall of the fixing needle (26) is in contact with the inner wall of the storage groove (20).

10. The jet-type plastic connector injection mold according to claim 1, characterized in that: Support frames (2) are fixedly mounted on the four corners at the bottom of the base (1).

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