Adjustable plastic mold

Abstract

The utility model discloses an adjustable plastic mould relates to plastic mould technical field, including bottom plate and vertical rod, the two vertical rod is fixed on the both sides of bottom plate upper surface, the upper end of two vertical rod is fixed with the top plate, the middle part of top plate lower surface is fixed with the hydraulic cylinder, the top plate is fixed with the hydraulic cylinder. A push plate is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, a lower die is fixedly arranged on the upper surface of the bottom plate, an upper die abuts against the upper side of the lower die, and the two sides of the upper surface of the upper die are fixedly connected with the push plate through connecting rods; an injection molding inlet pipe is fixedly arranged on one side of the upper surface of the upper mold, a rotating rod is arranged on one side of the injection molding inlet pipe, the rod wall of the rotating rod is fixedly sleeved with a rotating block, and a plurality of sliding grooves are formed in the side wall of the rotating block. The flow speed of plastic slurry during injection molding can be adjusted to adapt to injection molding of different plastics, feeding can be kept in the middle, and it can be guaranteed that the plastic slurry evenly flows into the flow channel.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic molds, in particular to an adjustable plastic mold. Background Art

[0002] The flow channel of the existing plastic mold cannot be adjusted, so the flow rate of the plastic slurry in the flow channel cannot be changed. However, when injecting different plastic parts, the flow rate needs to be adjusted. If the flow rate is too fast, the plastic slurry will be uneven in the flow channel.

[0003] Among them, the announcement number CN214448096U discloses an adjustable plastic mold, including a concave mold and a convex mold, a cavity is opened inside the side wall of one side of the concave mold, a screw is fixedly connected to the bottom wall of the cavity, the top of the screw passes through the top wall of the concave mold and extends to the outside of the concave mold, a first bevel gear is fixedly sleeved on the outer surface of the bottom end of the screw, a disc is provided near the cavity on the outer side wall of the concave mold, a rotating shaft is fixedly connected to the side of the disc near the cavity, and the end of the rotating shaft away from the disc passes through the side wall of the concave mold and extends into the cavity. There are still defects in this technical solution:

[0004] This technical solution uses a method of blocking part of the feed inlet to adjust the feed speed, but this will cause the feed position to be biased to one side, making it difficult to keep the slurry flowing evenly into the flow channel, which will in turn affect the product quality. Utility Model Content

[0005] In view of the above problems existing in the existing adjustable plastic mold, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an adjustable plastic mold, which solves the problem that the adjustable plastic mold in the prior art uses a method of blocking part of the feed inlet to adjust the feeding speed, but this will cause the feeding position to be biased to one side, making it difficult to maintain the plastic slurry flowing evenly into the flow channel, which will in turn affect the product quality.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An adjustable plastic mold, comprising a bottom plate and a vertical rod, two of the vertical rods are fixedly arranged on both sides of the upper surface of the bottom plate, a top plate is fixedly arranged at the upper ends of the two vertical rods, a hydraulic cylinder is fixedly arranged in the middle of the lower surface of the top plate, a push plate is fixedly arranged at the end of the piston rod of the hydraulic cylinder, a lower mold is fixedly arranged on the upper surface of the bottom plate, an upper mold is abutted against the upper side of the lower mold, and both sides of the upper surface of the upper mold are fixedly connected to the push plate through connecting rods;

[0009] An injection molding inlet tube is fixedly arranged on one side of the upper surface of the upper mold, a rotating rod is arranged on one side of the injection molding inlet tube, a rotating block is fixedly sleeved on the rod wall of the rotating rod, a plurality of slide grooves are provided on the side wall of the rotating block, a plurality of the slide grooves are provided with fixed rings on the outside, an adjusting mechanism for driving the fixed ring to move is arranged on the inside of the slide groove, an adjusting shell is clamped inside the fixed ring, and the bottoms of the plurality of adjusting shells are all conical with different tapers;

[0010] The inner upper surface of the fixing ring is provided with a limiting mechanism for limiting the movement of the adjusting shell.

[0011] Preferably, the adjustment mechanism comprises a slider and a threaded rod, the threaded rod is rotatably disposed inside the slide groove, the slider is threadably sleeved on the rod wall of the threaded rod, and one side of the slider is fixedly connected to the corresponding fixing ring.

[0012] Preferably, the limiting mechanism includes an insert shell and a retaining ring, the retaining ring is fixedly arranged on the upper outer wall of the adjusting shell, through holes are provided inside both ends of the retaining ring, the insert shell is inserted into the corresponding through holes, one side of the insert shell is fixedly connected to the upper surface of the fixing ring, a stopper is slidingly arranged inside the insert shell, a clamping block is fixedly arranged on the side of the stopper away from the adjusting shell, one end of the clamping block extends to the outside of the insert shell, a clamping groove is provided on the side wall of the through hole, one end of the outer side of the clamping block is clamped with the clamping groove, a spring is fixedly arranged on the side of the stopper away from the clamping block, and the other end of the spring is fixedly connected to the inner wall of the insert shell.

[0013] Preferably, both sides of the sliding block are in contact with the inner wall of the corresponding sliding groove.

[0014] Preferably, limit blocks are fixedly provided on both sides of the upper mold, and the two limit blocks are movably connected to the corresponding vertical rods.

[0015] Preferably, both ends of the push plate are movably connected to the corresponding vertical rods.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The utility model can rotate the adjusting shells with different bottom diameters to the top of the injection molding inlet pipe in sequence by rotating the rotating rod, and then rotate the threaded rod to make the slider drive the fixed ring to move, so that the adjusting shell is against the inner wall of the upper end of the injection molding inlet pipe, that is, the feeding diameter of the injection molding inlet pipe can be adjusted, and the feeding position can be ensured to be centered, which can ensure that the plastic slurry flows into the flow channel evenly.

[0018] 2. The utility model can remove the regulating shell from the fixing ring by pushing the clamping block into the inserting shell, thereby releasing the limit between the retaining ring and the fixing ring, and facilitating the replacement of different regulating shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of an adjustable plastic mold proposed by the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0022] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B in the middle.

[0023] Description of reference numerals:

[0024] 1. Bottom plate; 2. Vertical rod; 3. Push plate; 4. Top plate; 5. Hydraulic cylinder; 6. Limit block; 7. Upper die; 8. Lower die; 9. Connecting rod; 10. Rotating rod; 11. Rotating block; 12. Fixed ring; 13. Adjusting shell; 14. Injection inlet tube; 15. Retaining ring; 16. Threaded rod; 17. Slider; 18. Insert shell; 19. Stop block; 20. Block; 21. Spring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model discloses an adjustable plastic mold.

[0027] Reference Figure 1-3 , an adjustable plastic mold, including a bottom plate 1 and a vertical rod 2, two vertical rods 2 are fixedly arranged on both sides of the upper surface of the bottom plate 1, a top plate 4 is fixedly arranged on the upper ends of the two vertical rods 2, a hydraulic cylinder 5 is fixedly arranged in the middle of the lower surface of the top plate 4, a push plate 3 is fixedly arranged at the end of the piston rod of the hydraulic cylinder 5, both ends of the push plate 3 are movably sleeved with the corresponding vertical rods 2, so that the push rod 3 can slide stably, a lower mold 8 is fixedly arranged on the upper surface of the bottom plate 1, an upper mold 7 is abutted against the upper side of the lower mold 8, both sides of the upper surface of the upper mold 7 are fixedly connected to the push plate 3 through connecting rods 9, and both sides of the upper mold 7 are fixedly arranged with limit blocks 6, and the two limit blocks 6 are movably sleeved with the corresponding vertical rods 2, so that the upper mold 7 can slide stably;

[0028] An injection molding inlet tube 14 is fixedly provided on one side of the upper surface of the upper mold 7, and a rotating rod 10 is provided on one side of the injection molding inlet tube 14. A rotating block 11 is fixedly sleeved on the rod wall of the rotating rod 10, and a plurality of sliding grooves are provided on the side wall of the rotating block 11. A fixing ring 12 is provided on the outer side of the plurality of sliding grooves, and an adjusting mechanism for driving the fixing ring 12 to move is provided on the inner side of the sliding groove. An adjusting shell 13 is clamped inside the fixing ring 12, and the bottoms of the plurality of adjusting shells 13 are all conical with different tapers.

[0029] Reference Figure 1-3 A limiting mechanism for limiting the movement of the adjusting shell 13 is provided on the inner upper surface of the fixing ring 12. The adjusting mechanism includes a slider 17 and a threaded rod 16. The threaded rod 16 is rotatably arranged inside the slide groove. The slider 17 is threadedly sleeved on the rod wall of the threaded rod 16. One side of the slider 17 is fixedly connected to the corresponding fixing ring 12, and both sides of the slider 17 are in conflict with the inner wall of the corresponding slide groove, so that the slider 17 cannot rotate, that is, it can slide stably.

[0030] Reference Figure 1-3 The limiting mechanism includes an insert shell 18 and a retaining ring 15. The retaining ring 15 is fixedly arranged on the upper outer wall of the adjusting shell 13. Through holes are provided inside both ends of the retaining ring 15. The insert shell 18 is plugged into the corresponding through holes. One side of the insert shell 18 is fixedly connected to the upper surface of the fixing ring 12. A stopper 19 is slidingly arranged inside the insert shell 18. A block 20 is fixedly arranged on the side of the block 19 away from the adjusting shell 13. One end of the block 20 extends to the outside of the insert shell 18. A slot is provided on the side wall of the through hole. One end of the outer side of the block 20 is engaged with the slot. A spring 21 is fixedly arranged on the side of the block 19 away from the block 20. The other end of the spring 21 is fixedly connected to the inner wall of the insert shell 18.

[0031] In the utility model, when in use, the rotating rod 10 is rotated to rotate the adjusting shells 13 with different bottom diameters to the top of the injection molding inlet tube 14 in turn, and then the threaded rod 16 is rotated to make the slider 17 drive the fixing ring 12 to move, that is, the adjusting shell 13 is abutted against the inner wall of the upper end of the injection molding inlet tube 14, that is, the feeding diameter of the injection molding inlet tube 14 can be adjusted, and the feeding position can be ensured to be centered, and the slurry can be ensured to flow evenly into the flow channel. When the adjusting shell 13 needs to be replaced, the block 20 is pushed into the plug shell 18, that is, the limit between the baffle ring 15 and the fixing ring 12 is released, and the adjusting shell 13 can be taken out from the fixing ring 12, so that different adjusting shells 13 can be replaced conveniently.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An adjustable plastic mold, comprising a bottom plate (1) and a vertical rod (2), characterized in that: The two vertical rods (2) are fixedly arranged on both sides of the upper surface of the bottom plate (1); a top plate (4) is fixedly arranged at the upper ends of the two vertical rods (2); a hydraulic cylinder (5) is fixedly arranged in the middle of the lower surface of the top plate (4); a push plate (3) is fixedly arranged at the end of the piston rod of the hydraulic cylinder (5); a lower mold (8) is fixedly arranged on the upper surface of the bottom plate (1); an upper mold (7) is abutted against the upper side of the lower mold (8); and both sides of the upper surface of the upper mold (7) are fixedly connected to the push plate (3) through connecting rods (9); An injection molding inlet tube (14) is fixedly arranged on one side of the upper surface of the upper mold (7), a rotating rod (10) is arranged on one side of the injection molding inlet tube (14), a rotating block (11) is fixedly sleeved on the rod wall of the rotating rod (10), a plurality of sliding grooves are provided on the side wall of the rotating block (11), a plurality of fixing rings (12) are arranged on the outer sides of the plurality of sliding grooves, an adjusting mechanism for driving the fixing ring (12) to move is arranged on the inner side of the sliding groove, an adjusting shell (13) is clamped inside the fixing ring (12), and the bottoms of the plurality of adjusting shells (13) are all conical with different tapers; The inner upper surface of the fixing ring (12) is provided with a limiting mechanism for limiting the movement of the adjusting shell (13).

2. The adjustable plastic mold according to claim 1, characterized in that: The adjustment mechanism comprises a slider (17) and a threaded rod (16); the threaded rod (16) is rotatably arranged inside a slide groove; the slider (17) is threadably sleeved on a rod wall of the threaded rod (16); and one side of the slider (17) is fixedly connected to a corresponding fixing ring (12).

3. The adjustable plastic mold according to claim 1, characterized in that: The limiting mechanism comprises an insert shell (18) and a retaining ring (15), wherein the retaining ring (15) is fixedly arranged on the upper outer wall of the adjusting shell (13), through holes are provided at both ends of the retaining ring (15), the insert shell (18) is plugged into the corresponding through holes, one side of the insert shell (18) is fixedly connected to the upper surface of the fixing ring (12), a retaining block (19) is slidably arranged inside the insert shell (18), a clamping block (20) is fixedly arranged on the side of the retaining block (19) away from the adjusting shell (13), one end of the clamping block (20) extends to the outside of the insert shell (18), a clamping groove is provided on the side wall of the through hole, one end of the outer side of the clamping block (20) is clamped with the clamping groove, a spring (21) is fixedly arranged on the side of the retaining block (19) away from the clamping block (20), and the other end of the spring (21) is fixedly connected to the inner wall of the insert shell (18).

4. The adjustable plastic mold according to claim 2, characterized in that: Both sides of the sliding block (17) are in contact with the inner wall of the corresponding sliding groove.

5. The adjustable plastic mold according to claim 1, characterized in that: Limit blocks (6) are fixedly arranged on both sides of the upper mold (7), and the two limit blocks (6) are movably sleeved with corresponding vertical rods (2).

6. The adjustable plastic mold according to claim 1, characterized in that: Both ends of the push plate (3) are movably sleeved with corresponding vertical rods (2).

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