Quick locking mechanism for mold closing ejector rod of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding machine mold closing ejector rod quick locking mechanism which comprises a bottom plate, two first air cylinders are fixedly connected to the inner wall of the left side of the bottom plate, a sliding seat is fixedly connected to the right sides of the first air cylinders, and side plates are slidably connected to the front side and the rear side of the top end of the sliding seat. A main plate is fixedly connected to the right side of the side plate, supporting columns are slidably connected to the four corners of the right side of the main plate, a sliding plate is slidably connected to the left sides of the exteriors of the multiple supporting columns, a fixed plate is fixedly connected to the right sides of the multiple supporting columns, and an ejection assembly is fixedly connected to the inner wall of the left side of the sliding base. The right side of the top end of the bottom plate is fixedly connected with a circulating assembly. According to the device, the air pressure module is started to transmit air into the top disc along the ejector rod, at the moment, the air can extrude the multiple limiting discs to drive the balls to stretch out towards the outer side so as to be clamped with the multiple clamping grooves in the inner wall of the fixed plate, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a quick locking mechanism for a mold clamping and ejecting rod of an injection molding machine. Background Art

[0002] Injection molding technology is a plastic molding process that uses the thermoplasticity of plastics. After heating and melting, high pressure is applied to make it flow quickly into the mold. After a period of pressure maintenance and cooling, it becomes a plastic product of various shapes. This technology has the advantages of fast production speed, high efficiency, and easy operation.

[0003] After searching, Chinese patent announcement number: CN220826273U discloses a quick locking mechanism for the ejector rod of an injection molding machine, including an ejector plate pushed by a hydraulic cylinder during demoulding, an ejector rod for ejecting a workpiece, a support fixed on the ejector plate, the support having a notch facing the ejector plate, a locking pin shaft installed in the center hole of the support, the ejector rod and the locking pin shaft are threadedly connected, and the end of the ejector rod is positioned and matched with the support, and an annular groove is provided on the locking pin shaft, and a locking block that is rotated into the annular groove to lock and withdraw from the annular groove to unlock is provided in the space between the support and the ejector plate. The utility model realizes locking or unlocking of the ejector rod by rotating the locking block into or out of the annular groove of the locking pin shaft, has a simple structure, is easy to operate, can ensure the effective connection between the ejector rod and the ejector plate, and ensures the normal operation of the injection molding machine demoulding.

[0004] The beneficial effects in the above patent specification mention that "the locking block is rotated to engage or withdraw from the annular groove of the locking pin shaft to achieve locking or unlocking of the ejector rod. The structure is simple and the operation is convenient. It can ensure the effective connection between the ejector rod and the ejector plate, and ensure the normal operation of the injection molding machine demolding." Although the above patent has a simple structure, is easy to operate, and can ensure the effective connection between the ejector rod and the ejector plate, during specific use, because the locking block is only engaged on one side when it is engaged in the annular groove, the connection is not fully formed. This will lead to unstable engagement or disengagement after long-term use, and the stability is insufficient. Therefore, a quick locking mechanism for the mold closing ejector rod of an injection molding machine is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a quick locking mechanism for the mold ejector rod of an injection molding machine, which aims to improve the problem in the prior art that when the locking block is inserted into the annular groove, only one side is engaged and the connection is not fully formed, which may lead to unstable engagement or disengagement after long-term use, resulting in insufficient stability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The invention relates to a quick locking mechanism for a mold closing and ejection rod of an injection molding machine, comprising a bottom plate, a left inner wall of the bottom plate is fixedly connected to two cylinders 1, a right side of the cylinder 1 is fixedly connected to a slide seat, a top front and rear sides of the slide seat are slidably connected to side plates, a right side of the side plate is fixedly connected to a main board, four right corners of the main board are slidably connected to pillars, a plurality of the pillars are slidably connected to a slide plate on the left side of the outside, a plurality of the pillars are fixedly connected to a fixed plate on the right side, an ejection assembly is fixedly connected to the left inner wall of the slide seat, a circulation assembly is fixedly connected to the right side of the top of the bottom plate, an air pressure module is fixedly connected to the left side of the inner wall of the ejection assembly, an air pressure module is fixedly connected to the right side of the air pressure module, a plurality of ejector rods are fixedly connected to the right side of the air disk, a plurality of ejector rods are fixedly connected to the top plate on the right side, a plurality of limit plates are slidably connected to the inside of the top plate, a ball bearing is fixedly connected to the outer wall of the limit plate, and a discharge port is opened on the right side of the bottom plate;

[0008] As a further description of the above technical solution:

[0009] The ejection assembly includes a second cylinder, the left side of which is fixedly connected to the left inner wall of the slide seat, the right side of which is fixedly connected to a support block, the upper and lower ends of which are rotatably connected to two rotating blocks, the right sides of the plurality of rotating blocks are slidably connected to a push plate 1, the adjacent sides of the two side plates are slidably connected to a push plate 2, and the four corners of the push plate 2 are fixedly connected to ejection columns;

[0010] As a further description of the above technical solution:

[0011] The circulation component comprises a water bucket, the bottom end of the water bucket is fixedly connected to the right side of the top of the bottom plate, the top of the water bucket is provided with a water inlet, the left bottom end of the water bucket is fixedly connected to a water pump, the output end of the water pump is fixedly connected to a water pipe, the outside of the water pipe is fixedly connected to a plurality of support blocks, the inner wall of the water bucket is slidably connected to a filter plate, the top of the filter plate is fixedly connected to a handle, the bottom end of the inner wall of the handle is slidably connected to a button, the top of the button is fixedly connected to a limiting block, the top of the inner wall of the handle is fixedly connected to a top block, the top of the limiting block is rotatably connected to two sliding rods, two springs are arranged inside the handle, the outer wall of the sliding rod is slidably connected to a cable, the tops of the front and rear sides of the filter plate are fixedly connected to card blocks, and the card blocks are in a card-engaging relationship with the top of the inner wall of the water bucket;

[0012] As a further description of the above technical solution:

[0013] The left side of the slide plate is in contact with the right side of the main board, and the inner wall of the main board is slidably connected to the outside of the top column;

[0014] As a further description of the above technical solution:

[0015] The bottom end of the fixed plate is fixedly connected to the top end of the bottom plate, and the front and rear sides of the rotating block are respectively slidably connected to the adjacent sides of the two side plates;

[0016] As a further description of the above technical solution:

[0017] The outer left side of the air pressure module is slidably connected to the right inner wall of the push plate 1, and the outer side of the air pressure module is fixedly connected to the inner wall of the push plate 2;

[0018] As a further description of the above technical solution:

[0019] The outside of the water pipe is fixedly connected to the inner wall of the fixed plate, and the top end of the sliding rod is slidably connected to the bottom end of the top block;

[0020] As a further description of the above technical solution:

[0021] One end of the spring is fixedly connected to the top end of the limiting block, and the other end of the spring is fixedly connected to the bottom end of the top block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the air pressure module is started to transport the gas to the inside of the gas disk, so that the gas is further transmitted to the inside of the top plate along the top rod. At this time, the gas will squeeze multiple limit plates to drive the balls to extend outward, thereby engaging with multiple grooves on the inner wall of the fixed plate. This multi-directional engagement is more stable and firm than single-sided engagement, thereby improving the stability of the device.

[0024] 2. In the utility model, the cooling water can flow back into the water bucket after cooling the injection molded product through the inner wall of the fixed plate, thereby dissolving with the original cold water and exchanging heat, and then continue to flow into the inside of the fixed plate to cool the product multiple times, thereby improving the cooling effect. At the same time, the sliding rod can be driven to slide by pressing a button, thereby driving the cable to pull the card block to remove the filter plate, clean it, and improve the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of a quick locking mechanism for a mold closing and ejection rod of an injection molding machine proposed by the utility model;

[0026] Figure 2 It is a structural schematic diagram of a push plate 1 of a quick locking mechanism for a mold ejector rod of an injection molding machine proposed by the utility model;

[0027] Figure 3 This is a schematic structural diagram of a bucket of a quick locking mechanism for a mold ejector rod of an injection molding machine proposed by the utility model;

[0028] Figure 4 This is a structural schematic diagram of a filter plate of a quick locking mechanism for a mold ejector rod of an injection molding machine proposed by the utility model;

[0029] Figure 5 This is a structural schematic diagram of a clamping block of a quick locking mechanism for a mold ejector rod of an injection molding machine proposed by the utility model;

[0030] Figure 6 This is a schematic structural diagram of a spring of a quick locking mechanism for a mold closing and ejection rod of an injection molding machine proposed by the utility model;

[0031] Figure 7 The utility model is a schematic structural diagram of a ball bearing of a quick locking mechanism for a mold clamping and ejection rod of an injection molding machine.

[0032] Legend:

[0033] 1. Bottom plate; 2. Cylinder 1; 3. Slide seat; 4. Side plate; 5. Main plate; 6. Slide plate; 7. Pillar; 8. Fixed plate; 9. Cylinder 2; 10. Rotating block; 11. Push plate 1; 12. Push plate 2; 13. Ejector column; 14. Bucket; 15. Water inlet; 16. Water pump; 17. Water pipe; 18. Support block; 19. Discharge port; 20. Filter plate; 21. Handle; 22. Button; 23. Limit block; 24. Ejector block; 25. Sliding rod; 26. Spring; 27. Cable; 28. Block; 29. ​​Air pressure module; 30. Air disc; 31. Ejector rod; 32. Ejector disc; 33. Limit disc; 34. Ball bearing. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Reference Figure 1-Figure 2 The utility model provides an embodiment: a quick locking mechanism for a mold ejector rod of an injection molding machine, comprising a bottom plate 1, two cylinders 2 are fixedly connected to the left inner wall of the bottom plate 1, a slide seat 3 is fixedly connected to the right side of the cylinder 2, and the slide seat 3 can be pushed to move to the right by starting the cylinder 2, and the top and rear sides of the slide seat 3 are slidably connected to the side plates 4, the right side of the side plate 4 is fixedly connected to the main board 5, and the four right corners of the main board 5 are slidably connected to the pillars 7, and the pillars 7 here provide a stable support for the main board 5;

[0036] Reference Figure 1-Figure 2The left side of the outside of the plurality of pillars 7 is slidably connected with a slide plate 6, the left side of the slide plate 6 contacts the right side of the main board 5, the right side of the plurality of pillars 7 is fixedly connected with a fixed plate 8, the bottom end of the fixed plate 8 is fixedly connected to the top of the bottom plate 1, and the bottom plate 1 here provides a stable support for the given plate 8, and the left inner wall of the slide seat 3 is fixedly connected with an ejector assembly, and the ejector assembly here is used to eject the injection molded product so that the staff can collect it, and the ejector assembly includes a cylinder 2 9;

[0037] Reference Figure 1-Figure 2 The left side of cylinder 2 9 is fixedly connected to the left inner wall of the slide seat 3, and the right side of cylinder 2 9 is fixedly connected to a support block. The upper and lower ends of the support block are rotatably connected to two rotating blocks 10. After starting, cylinder 2 9 here can drive the support block and the two rotating blocks 10 to move to the right side. The front and rear sides of the rotating block 10 are respectively slidably connected to the adjacent sides of the two side plates 4. The right sides of the multiple rotating blocks 10 are slidably connected to a push plate 11, and the adjacent sides of the two side plates 4 are slidably connected to a push plate 2 12. When the rotating block 10 here contacts the protrusion of the side plate 4, it will start to rotate and squeeze the push plate 11, thereby driving the push plate 2 12 to move to the right.

[0038] Reference Figure 1-Figure 3 The four corners of the push plate 12 are fixedly connected with top columns 13, the inner wall of the main board 5 is slidably connected to the outside of the top column 13, and a circulation component is fixedly connected to the right side of the top of the bottom plate 1. The circulation component here is used for circulating water cooling of the injection molded product, which reduces the cost and improves the cooling effect. The circulation component includes a water bucket 14, the bottom end of the water bucket 14 is fixedly connected to the right side of the top of the bottom plate 1, and a water inlet 15 is provided at the top of the water bucket 14. The bottom left end of the water bucket 14 is fixedly connected to a water pump 16, and the water pump 16 here is used to pump out the water inside the water bucket 14.

[0039] Reference Figure 3-Figure 4 The output end of the water pump 16 is fixedly connected with a water pipe 17, the outside of the water pipe 17 is fixedly connected to the inner wall of the fixed plate 8, and the outside of the water pipe 17 is fixedly connected with a plurality of support blocks 18. When water passes through the water pipe 17, it will flow through the inside of the fixed plate 8, thereby performing a circulation cooling treatment on the injection molded product. The inner wall of the water bucket 14 is slidably connected with a filter plate 20, and the filter plate 20 here is used to filter impurities and scale in the water to prevent it from affecting the cooling effect. The top of the filter plate 20 is fixedly connected with a handle 21.

[0040] Reference Figure 4-Figure 6A button 22 is slidably connected to the bottom end of the inner wall of the handle 21, and a limit block 23 is fixedly connected to the top end of the button 22. The limit block 23 here is used to limit the button 22 to prevent it from leaving the range of motion of the handle 21. A top block 24 is fixedly connected to the top end of the inner wall of the handle 21, and two slide rods 25 are rotatably connected to the top end of the limit block 23. The top end of the slide rods 25 is slidably connected to the bottom end of the top block 24. When the button 22 is pressed here, the two slide rods 25 can shrink toward the center while sliding closer on the top block 24.

[0041] Reference Figure 5-Figure 6 Two springs 26 are arranged inside the handle 21, one end of the spring 26 is fixedly connected to the top of the limit block 23, and the other end of the spring 26 is fixedly connected to the bottom of the top block 24. The spring 26 here is used to reset in time after the button 22 is pressed to remove the filter plate 20. The outer wall of the sliding rod 25 is slidably connected with a cable 27, and the tops of the front and rear sides of the filter plate 20 are fixedly connected with a block 28. The block 28 is in a clamping relationship with the top of the inner wall of the bucket 14. When the sliding rod 25 slides toward the center, it can drive the cable 27 to pull toward the center, thereby driving the block 28 to move and make it disengage from the clamping with the bucket 14.

[0042] Reference Figure 2 and Figure 7 The left side of the inner wall of the ejection assembly is fixedly connected with an air pressure module 29, and the left side of the outside of the air pressure module 29 is slidably connected to the right inner wall of the push plate 11. The air pressure module 29 here can blow in high-pressure gas, which is the prior art and will not be repeated here. The outside of the air pressure module 29 is fixedly connected to the inner wall of the push plate 2 12, and the right side of the air pressure module 29 is fixedly connected with an air disk 30, and the right side of the air disk 30 is fixedly connected with a plurality of ejector rods 31, and the right side of the plurality of ejector rods 31 is fixedly connected with a top plate 32. The gas blown out from the air pressure module 29 will be transmitted to the inside of the top plate 32 after passing through the air disk 30 and the plurality of ejector rods 31.

[0043] Reference Figure 1 and Figure 7 The top plate 32 is internally slidably connected to a plurality of limit plates 33, and the outer wall of the limit plate 33 is fixedly connected to a ball 34. The gas here will blow the limit plate 33, so that the plurality of ball 34 will slide outward and protrude to the outside of the top plate 32, thereby completing the engagement with the fixed plate 8 before injection molding to prevent detachment. A discharge port 19 is opened on the right side of the bottom plate 1, and the injection-molded plastic products will fall from here, and the staff can collect them.

[0044] Working principle: The example diagram of this utility model shows the mold opening state. When the staff needs injection molding, they can first close the mold, that is, start the cylinder 2 on the left inner wall of the bottom plate 1, and then drive the slide 3 and the equipment on its right to move right. When the slide plate 6 is molded with the fixed plate 8 under the limit of multiple pillars 7, the air pressure module 29 can be started. At this time, the air pressure module 29 will input gas into the interior of the gas disk 30, and further transport it to the interior of the top plate 32 along the push rod 31. Then the ball 34 will protrude from the inner wall of the top plate 32 under the extrusion of the gas. The limit plate 33 here plays a limiting role, and then the hot melt plastic can be injected to start injection molding.

[0045] During injection molding, clean water can be poured into the water bucket 14 from the water inlet 15. At this time, the clean water will be filtered by the filter plate 20 and pumped out to the inside of the water pipe 17 by the water pump 16. Because most of the water pipe 17 here is buried inside the fixed plate 8, the injection molded product can be water-cooled. The hot water that has passed through a process will flow back to the inside of the water bucket 14 from the other end of the water pipe 17. The support block 18 here plays a supporting role for the water pipe 17. Then the hot water will mix with the cold water in the water bucket 14, greatly reducing the temperature brought out by the hot water, and will be filtered again by the filter plate 20 to prevent scale or dust in the water pipe 17 from affecting the cooling effect. After completion, the water will be pumped out from the water pump 16 again, and the injection molded product will be cooled again. This method of recycling water resources greatly reduces the cost and has a better effect on the cooling of injection molded products.

[0046] After long-term use, the filter plate 20 can also be cleaned to ensure a high-efficiency filtering function. At this time, the barrel cover on the right side can be opened first, and then the handle 21 is pulled to press the button 22. At this time, the button 22 will drive the two slide rods 25 to slide toward the center on the top block 24, and at the same time drive the cable 27 to pull in the direction of the handle 21. The limit block 23 here plays a limiting role to prevent the button 22 from detaching from the movable inner wall of the handle 21. The pulled cable 27 will further pull the block 28 on the front and rear sides of the top of the filter plate 20. After it is disengaged from the filter plate 20, the filter plate 20 can be taken out and cleaned. After cleaning, it can be directly inserted into the interior of the filter plate 20. When inserted, because the block 28 here is made of polypropylene, it has good elasticity and toughness. When inserted, it will be temporarily deformed, and then reset after matching with the card slot of the bucket 14. At the same time, the spring 26 here plays a resetting role for the button 22.

[0047] After cooling and shaping, the cylinder 1 2 can be controlled to move the slide 3 and the equipment on its right side to the left at the same time. After resetting, the cylinder 2 9 can be started. At this time, the cylinder 2 9 will push the multiple rotating blocks 10 to move to the right, and at the same time drive the push plate 1 11, the push plate 2 12, the push rod 31 and the slide plate 6 to move right, so that the main board 5 is separated from the slide plate 6. The push column 13 here plays a limiting role. When the right side of the rotating block 10 contacts the special-shaped part of the side plate 4, the rotating block 10 will start to rotate and drive the push plate 2 12 to continue to move right, and at the same time drive the air pressure module 29, the air disk 30, the push rod 31 and the top disk 32 to move right, and perform secondary ejection to eject the formed product, which will then fall from the discharge port 19. The staff can collect it at this time.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick locking mechanism for a mold ejector rod of an injection molding machine, comprising a bottom plate (1), characterized in that: The left inner wall of the bottom plate (1) is fixedly connected to two cylinders (2); the right side of the cylinder (2) is fixedly connected to a slide seat (3); the top front and rear sides of the slide seat (3) are slidably connected to side plates (4); the right side of the side plate (4) is fixedly connected to a main board (5); the right four corners of the main board (5) are slidably connected to pillars (7); the left sides of the outsides of the plurality of pillars (7) are slidably connected to a slide plate (6); the right sides of the plurality of pillars (7) are fixedly connected to a fixed plate (8); the left inner wall of the slide seat (3) is fixedly connected to an ejection assembly; A circulation component is fixedly connected to the right side of the top of the bottom plate (1); a pneumatic module (29) is fixedly connected to the left side of the inner wall of the ejection component; a gas disk (30) is fixedly connected to the right side of the pneumatic module (29); a plurality of ejector rods (31) are fixedly connected to the right side of the gas disk (30); a top plate (32) is fixedly connected to the right side of the plurality of ejector rods (31); a plurality of limit plates (33) are slidably connected inside the top plate (32); a ball bearing (34) is fixedly connected to the outer side wall of the limit plate (33); and a discharge port (19) is provided on the right side of the bottom plate (1).

2. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 1, characterized in that: The ejection assembly comprises a second cylinder (9), the left side of the second cylinder (9) being fixedly connected to the left inner wall of the slide seat (3), the right side of the second cylinder (9) being fixedly connected to a support block, the upper and lower ends of the support block being rotatably connected to two rotating blocks (10), the right sides of the plurality of rotating blocks (10) being slidably connected to a push plate one (11), the adjacent sides of the two side plates (4) being slidably connected to a push plate two (12), and the four corners of the push plate two (12) being fixedly connected to ejection columns (13).

3. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 1, characterized in that: The circulation component comprises a water bucket (14), the bottom end of the water bucket (14) is fixedly connected to the right side of the top end of the bottom plate (1), a water inlet (15) is provided at the top end of the water bucket (14), a water pump (16) is fixedly connected to the bottom left end of the water bucket (14), an output end of the water pump (16) is fixedly connected to a water pipe (17), the outside of the water pipe (17) is fixedly connected to a plurality of support blocks (18), the inner wall of the water bucket (14) is slidably connected to a filter plate (20), the top end of the filter plate (20) is fixedly connected to a handle (21), and the handle (21) A button (22) is slidably connected to the bottom end of the inner wall of the handle (21); the top end of the button (22) is fixedly connected to a limit block (23); the top end of the inner wall of the handle (21) is fixedly connected to a top block (24); the top end of the limit block (23) is rotatably connected to two sliding rods (25); two springs (26) are arranged inside the handle (21); the outer wall of the sliding rod (25) is slidably connected to a cable (27); the top ends of the front and rear sides of the filter plate (20) are fixedly connected to a clamping block (28); the clamping block (28) is in a clamping relationship with the top end of the inner wall of the bucket (14).

4. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 2, characterized in that: The left side of the slide plate (6) contacts the right side of the main board (5), and the inner wall of the main board (5) is slidably connected to the outside of the top column (13).

5. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 2, characterized in that: The bottom end of the fixed plate (8) is fixedly connected to the top end of the bottom plate (1), and the front and rear sides of the rotating block (10) are respectively slidably connected to the adjacent sides of the two side plates (4).

6. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 2, characterized in that: The outer left side of the air pressure module (29) is slidably connected to the right inner wall of the push plate one (11), and the outer side of the air pressure module (29) is fixedly connected to the inner wall of the push plate two (12).

7. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 3, characterized in that: The outside of the water pipe (17) is fixedly connected to the inner wall of the fixed plate (8), and the top end of the sliding rod (25) is slidably connected to the bottom end of the top block (24).

8. The quick locking mechanism for the mold closing and ejection rod of an injection molding machine according to claim 3, characterized in that: One end of the spring (26) is fixedly connected to the top end of the limit block (23), and the other end of the spring (26) is fixedly connected to the bottom end of the top block (24).

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