Plastic injection molding machine with quick mold change device

Abstract

This utility model discloses a plastic injection molding machine with a quick mold changing device, applied in the field of plastic product manufacturing technology. It includes a support frame, with a limiting frame fixedly installed on the left side of the top of the support frame. A positioning plate and a movable plate are slidably connected to both sides of the inner cavity of the limiting frame. Hydraulic rods are fixedly installed at the four corners of the left side of the movable plate, and the left side of each hydraulic rod is fixedly installed to the inner wall of the limiting frame. When the user needs to change the left or right mold, simply start the bidirectional motor, which, through the cooperation of the bidirectional threaded rod and the threaded sleeve, drives the support plate to release the clamping of the corresponding mold, thus completing the disassembly. Similarly, during installation, simply place the corresponding mold in the inner cavity of the support plate, start the bidirectional motor, and repeat the above operation to complete the mold installation and simultaneously position the mold, thereby enabling quick mold changes during processing.

Description

Technical Field

[0001] This utility model belongs to the field of plastic product manufacturing technology, and specifically relates to a plastic injection molding machine with a quick mold changing device. Background Technology

[0002] Plastic injection molding machines are one of the core pieces of equipment in the plastics processing industry and are indispensable equipment in modern industry. Their applications cover multiple fields, from daily necessities to high-end manufacturing. They are mainly used to process thermoplastic or thermosetting plastic raw materials into plastic products of various shapes through processes such as heating and melting, high-pressure injection, and cooling molding. The efficient and precise production method continuously promotes the innovation and development of the plastics industry.

[0003] Currently, when changing molds during the production process, plastic injection molding machines still require the installation of the mold and the machine. After installation, problems such as improper mold closing can easily occur, resulting in flash, shrinkage, and other issues. Frequent adjustments are necessary, leading to excessively long mold installation time and material waste. Furthermore, when used on different terrains, uneven ground can cause the entire machine to tilt or even tip over, resulting in uneven stress on the mold closing mechanism and machine damage during processing, thus affecting the processing of plastic products. Utility Model Content

[0004] The purpose of this invention is to provide a plastic injection molding machine with a quick mold changing device, which has the advantages of being able to quickly disassemble and assemble the mold during processing and maintain the balance of the plastic injection molding machine itself when used on different terrains.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a plastic injection molding machine with a quick mold changing device, comprising a load-bearing frame, a limiting frame fixedly installed on the left side of the top of the load-bearing frame, a positioning plate and a movable plate slidably connected to both sides of the inner cavity of the limiting frame, a hydraulic rod fixedly installed at each of the four corners of the left side of the movable plate, the left side of the hydraulic rod being fixedly installed to the inner wall of the limiting frame, an installation assembly fixedly installed on the opposite side of the positioning plate and the movable plate, the installation assembly comprising two load-bearing plates, a left mold and a right mold respectively installed on the opposite side of the inner cavity of each pair of load-bearing plates via a slot, an ejection assembly fixedly installed on the left side of the movable plate, the ejection assembly comprising a movable frame, the right side of the movable frame being slidably connected to the inner cavity of the left mold, a transport assembly fixedly installed on the top of the load-bearing frame, and adjustment assemblies fixedly installed at each of the four corners of the bottom of the load-bearing frame.

[0006] Using the above technical solution: When the user needs to replace the left or right mold, simply start the bidirectional motor 1. Through the cooperation of the bidirectional threaded rod and the threaded sleeve 1, the load-bearing plate is released from the clamping of the corresponding mold, thus completing the disassembly. Similarly, during installation, simply place the corresponding mold in the inner cavity of the load-bearing plate, start the bidirectional motor 1, and repeat the above operation to complete the mold installation. At the same time, the position of the mold is positioned, thus enabling quick mold replacement during processing. When the user needs to ensure the stability of the machine during operation on different terrains, the user starts the bidirectional motor 1 at the corresponding position. The bidirectional motor 1 drives the threaded sleeve to rise and fall through the threaded rod 1, simultaneously driving the connecting frame and anti-slip pad to rise and fall, thus keeping the machine stable when used on different terrains.

[0007] The present invention is further configured such that the installation assembly includes two positioning frames, the two positioning frames being fixedly installed on the side of the positioning plate and the movable plate respectively near the positioning plate and the movable plate, a bidirectional motor is fixedly installed on the front side of the positioning frame, the output end of the bidirectional motor is equipped with a bidirectional threaded rod rotatably connected to the inner cavity of the positioning frame, and a threaded sleeve is threadedly connected to the opposite side of the surface of the bidirectional threaded rod, the side of the threaded sleeve away from the bidirectional threaded rod is fixedly installed with the load-bearing plate.

[0008] The above technical solution involves the coordinated use of a positioning frame, a bidirectional motor, a bidirectional threaded rod, a threaded sleeve, and a load-bearing plate in the installation assembly. During use, the bidirectional motor drives the bidirectional threaded rod to rotate, which in turn moves the two threaded sleeves towards the center. As the threaded sleeves move, the load-bearing plate fixes the left or right mold that needs to be replaced. Similarly, by rotating the bidirectional motor in the opposite direction, the left or right mold can be quickly disassembled during the replacement process, allowing for rapid replacement of the left or right mold during use.

[0009] The present invention is further configured such that a retaining rod is fixedly installed on the front and rear sides of the opposite side of the positioning plate and the movable plate, and the side of the retaining rod near the positioning frame is fixedly installed with the positioning frame.

[0010] The above technical solution is adopted: after the load-bearing plate has clamped and positioned the left or right mold that needs to be replaced, the position of the load-bearing plate is positioned by means of the fixing rod, so as to prevent the position of the load-bearing plate from shifting during use.

[0011] The present invention is further configured such that the ejection assembly includes a mounting plate, the right side of the mounting plate is fixedly installed with the movable plate, and the four corners of the left side of the movable plate are fixedly installed with return springs, the left side of the return springs being fixedly installed with the movable frame.

[0012] By adopting the above technical solution, through the coordinated use of the mounting plate, return spring and movable frame in the ejection assembly, it is possible to quickly remove plastic products from the mold without manual operation during plastic product processing.

[0013] The present invention is further configured such that the transport component includes a mounting frame, the left side of which is slidably connected to the inner cavity of the load-bearing frame, a hydraulic rod two is fixedly mounted on the top of the mounting frame, a motor three is fixedly mounted on the left side of the hydraulic rod two, the surface of the motor three is slidably connected to the mounting frame, a threaded transport rod is fixedly mounted on the output end of the motor three, a transport tube is sleeved on the surface of the threaded transport rod, the bottom of the transport tube is fixedly mounted to the load-bearing frame, a feed hopper is connected to the top left side of the transport tube, a sealing plate is sleeved on the surface of the output end of the motor three, the surface of the sealing plate is engaged with the inner cavity of the transport tube, and a heating element is sleeved on the surface of the transport tube.

[0014] The above technical solution utilizes the mounting frame, hydraulic rod II, motor III, threaded transport rod, transport pipe, sealing plate, and heating element in the transport assembly to transport and fuse plastic granules before injection molding. After use, the mounting frame can be pulled to detach the components connected to it from the load-bearing frame, facilitating quick cleaning of the threaded transport rod within the transport assembly.

[0015] The present invention is further configured such that the adjustment component includes a mounting shell, the top of the mounting shell is fixedly installed with a load-bearing frame, a bidirectional motor II is fixedly installed on the top of the inner cavity of the mounting shell, a threaded rod I is rotatably connected to the output end of the bidirectional motor II, a threaded sleeve II is threadedly connected to the top of the surface of the threaded rod I, a connecting frame is fixedly installed at the bottom of the threaded sleeve II, the bottom of the connecting frame extends through to the outside of the mounting shell and is engaged with an anti-slip pad, and the surface of the connecting frame is slidably connected to the inner cavity of the mounting shell.

[0016] The above technical solution is adopted: by setting the mounting shell, bidirectional motor 2, threaded rod 1, threaded sleeve 2, connecting frame and anti-slip pad in the adjustment assembly, the bidirectional motor 2 is started to drive the threaded rod 1 to rotate in the inner cavity of the mounting shell, which drives the threaded sleeve 2, which is threaded to the threaded rod 1, to adjust the position of the connecting frame and anti-slip pad, thus ensuring the stability of the machine when used in different terrains.

[0017] In summary, this utility model has the following beneficial effects: 1. When the user needs to replace the left or right mold, simply start the bidirectional motor and use the bidirectional threaded rod and threaded sleeve to drive the load-bearing plate to release the clamp on the corresponding mold, thus completing the disassembly. Similarly, during installation, simply place the corresponding mold in the inner cavity of the load-bearing plate, start the bidirectional motor and repeat the above operation to complete the mold installation and position the mold, thereby enabling quick mold replacement during processing. 2. When the user needs to ensure the stability of the machine during operation on different terrains, the user can start the bidirectional motor 2 at the corresponding position. The bidirectional motor 2 drives the threaded sleeve to rise and fall through the threaded rod 1, and simultaneously drives the connecting frame and anti-slip pad to rise and fall, so that the machine can remain stable when used on different terrains. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural front view of the present invention; Figure 3 This is a top view of the mounting components of this utility model; Figure 4 This is a utility model Figure 2 Enlarged view of the local structure at point A; Figure 5 This is an exploded view of the transport components of this utility model; Figure 6 This is a cross-sectional view of the adjustment component of this utility model.

[0019] Attached reference numerals: 1. Load-bearing frame; 2. Limiting frame; 3. Positioning plate; 4. Movable plate; 5. Mounting assembly; 501. Positioning frame; 502. Bidirectional motor one; 503. Bidirectional threaded rod; 504. Threaded sleeve one; 505. Load-bearing plate; 506. Retaining rod; 6. Hydraulic rod one; 7. Ejection assembly; 701. Mounting plate; 702. Return spring; 703. Movable frame; 8. Left mold; 9. Right mold; 10. Transportation Components; 1001, Mounting bracket; 1002, Hydraulic rod II; 1003, Motor III; 1004, Threaded transport rod; 1005, Transport pipe; 1006, Feed hopper; 1007, Sealing plate; 1008, Heating element; 11, Adjustment assembly; 1101, Mounting shell; 1102, Bidirectional motor II; 1103, Threaded rod I; 1104, Threaded sleeve II; 1105, Connecting bracket; 1106, Anti-slip mat. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1: refer to Figure 1 and Figure 3 A plastic injection molding machine with a quick mold changing device includes a support frame 1. A limit frame 2 is fixedly installed on the left side of the top of the support frame 1. A positioning plate 3 and a movable plate 4 are slidably connected to both sides of the inner cavity of the limit frame 2. Hydraulic rods 6 are fixedly installed at the four corners of the left side of the movable plate 4. The left side of the hydraulic rods 6 is fixedly installed to the inner wall of the limit frame 2. An installation assembly 5 is fixedly installed on the opposite side of the positioning plate 3 and the movable plate 4. The installation assembly 5 includes two support plates 505. A left mold 8 and a right mold 9 are respectively installed on the opposite side of the inner cavity of each pair of support plates 505 through a slot.

[0022] Furthermore, the installation assembly 5 includes two positioning frames 501. The two positioning frames 501 are fixedly installed on the side of the positioning plate 3 and the movable plate 4 respectively, near the positioning plate 3 and the movable plate 4. A bidirectional motor 502 is fixedly installed on the front side of the positioning frame 501. A bidirectional threaded rod 503 is rotatably connected to the inner cavity of the positioning frame 501 at the output end of the bidirectional motor 502. A threaded sleeve 504 is threadedly connected to the opposite side of the surface of the bidirectional threaded rod 503. The side of the threaded sleeve 504 away from the bidirectional threaded rod 503 is fixedly installed with the load-bearing plate 505.

[0023] Furthermore, a retaining rod 506 is fixedly installed on the front and rear sides of the opposite side of the positioning plate 3 and the movable plate 4, and the side of the retaining rod 506 closest to the positioning frame 501 is fixedly installed with the positioning frame 501.

[0024] Brief description of usage: When the user needs to replace the left mold 8 or the right mold 9, simply start the bidirectional motor 502. Through the cooperation of the bidirectional threaded rod 503 and the threaded sleeve 504, the load-bearing plate 505 is driven to release the clamping of the corresponding mold, thus completing the disassembly. Similarly, during installation, simply place the corresponding mold in the inner cavity of the load-bearing plate 505, start the bidirectional motor 502, and repeat the above operation to complete the mold installation and position the mold. This allows for quick mold replacement during processing. By using the positioning frame 501, bidirectional motor 502, bidirectional threaded rod 503, threaded sleeve 504, and load-bearing plate 505 in the installation assembly 5, the user can quickly replace the mold during processing. During operation, the bidirectional motor 502 drives the bidirectional threaded rod 503 to rotate. As the bidirectional threaded rod 503 rotates, it drives the two threaded sleeves 504 to move towards the center. As the threaded sleeves 504 move, they drive the load-bearing plate 505 to fix the left mold 8 or right mold 9 that needs to be replaced. Similarly, the bidirectional motor 502 drives the bidirectional threaded rod 503 to rotate in the opposite direction, which can quickly disassemble the left mold 8 or right mold 9 during the replacement process. After the load-bearing plate 505 has clamped and positioned the left mold 8 or right mold 9 that needs to be replaced, the positioning rod 506 positions the load-bearing plate 505 to prevent it from shifting during use.

[0025] Example 2: refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 A plastic injection molding machine with a quick mold changing device includes a movable plate 4, an ejector assembly 7 fixedly installed on the left side of the movable plate 4, the ejector assembly 7 including a movable frame 703, the right side of the movable frame 703 being slidably connected to the inner cavity of the left mold 8, a transport assembly 10 fixedly installed on the top of the load-bearing frame 1, and adjustment assemblies 11 fixedly installed at the four corners of the bottom of the load-bearing frame 1.

[0026] Furthermore, the ejection assembly 7 includes a mounting plate 701, the right side of which is fixedly mounted to the movable plate 4, and the four corners of the left side of the movable plate 4 are fixedly mounted with return springs 702, the left side of which is fixedly mounted to the movable frame 703.

[0027] Furthermore, the transport component 10 includes a mounting frame 1001. The left side of the mounting frame 1001 is slidably connected to the inner cavity of the load-bearing frame 1. A hydraulic rod 1002 is fixedly mounted on the top of the mounting frame 1001. A motor 1003 is fixedly mounted on the left side of the hydraulic rod 1002. The surface of the motor 1003 is slidably connected to the mounting frame 1001. A threaded transport rod 1004 is fixedly mounted on the output end of the motor 1003. A transport pipe 1005 is sleeved on the surface of the threaded transport rod 1004. The bottom of the transport pipe 1005 is fixedly mounted to the load-bearing frame 1. A feed hopper 1006 is connected to the top left side of the transport pipe 1005. A sealing plate 1007 is sleeved on the surface of the output end of the motor 1003. The surface of the sealing plate 1007 is engaged with the inner cavity of the transport pipe 1005. A heating element 1008 is sleeved on the surface of the transport pipe 1005.

[0028] Furthermore, the adjustment assembly 11 includes a mounting shell 1101. The top of the mounting shell 1101 is fixedly installed with the load-bearing frame 1. A bidirectional motor 1102 is fixedly installed on the top of the inner cavity of the mounting shell 1101. A threaded rod 1103 is rotatably connected to the inner cavity of the mounting shell 1101 at the output end of the bidirectional motor 1102. A threaded sleeve 1104 is threadedly connected to the top of the surface of the threaded rod 1103. A connecting frame 1105 is fixedly installed at the bottom of the threaded sleeve 1104. The bottom of the connecting frame 1105 extends through to the outside of the mounting shell 1101 and is engaged with an anti-slip pad 1106. The surface of the connecting frame 1105 is slidably connected to the inner cavity of the mounting shell 1101.

[0029] Brief description of usage: When the user needs to ensure the stability of the machine during operation on different terrains, the user starts the bidirectional motor 2 1102 at the corresponding position. The bidirectional motor 2 1102 drives the threaded sleeve to rise and fall through the threaded rod 1103, and simultaneously drives the connecting frame 1105 and the anti-slip pad 1106 to rise and fall, thus keeping the machine stable when used on different terrains. By setting up the mounting plate 701, return spring 702 and movable frame 703 in the ejection assembly 7, it is possible to quickly remove plastic products from the mold without manual operation during plastic product processing. By setting up the mounting frame 1001, hydraulic rod 2 1002, motor 3 1003, threaded transport rod 1004, transport pipe 1005, sealing plate 1007 and heating element 1008 in the transport assembly 10, The system is used to transport and fuse plastic granules before injection molding. After use, the mounting frame 1001 can be pulled to detach the component connected to the mounting frame 1001 from the load-bearing frame 1, making it easy for the user to quickly clean the threaded transport rod 1004 in the transport component 10. By setting and adjusting the mounting shell 1101, bidirectional motor 1102, threaded rod 1103, threaded sleeve 1104, connecting frame 1105 and anti-slip pad 1106 in the adjustment component 11, the bidirectional motor 1102 drives the threaded rod 1103 to rotate in the inner cavity of the mounting shell 1101, which drives the threaded sleeve 1104, which is threaded to the threaded rod 1103, to adjust the position of the connecting frame 1105 and anti-slip pad 1106, thus ensuring the stability of the machine when used in different terrains.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A plastic injection molding machine with a quick mold changing device, comprising a support frame (1), characterized in that: A limiting frame (2) is fixedly installed on the left side of the top of the load-bearing frame (1). A positioning plate (3) and a movable plate (4) are slidably connected to both sides of the inner cavity of the limiting frame (2). Hydraulic rods (6) are fixedly installed at the four corners of the left side of the movable plate (4). The left side of the hydraulic rods (6) is fixedly installed to the inner wall of the limiting frame (2). An installation assembly (5) is fixedly installed on the opposite side of the positioning plate (3) and the movable plate (4). The installation assembly (5) includes two load-bearing plates (505). Each pair of load-bearing plates (505) has a left mold (8) and a right mold (9) installed on opposite sides of their inner cavities via slots. An ejection assembly (7) is fixedly installed on the left side of the movable plate (4). The ejection assembly (7) includes a movable frame (703). The right side of the movable frame (703) is slidably connected to the inner cavity of the left mold (8). A transport assembly (10) is fixedly installed on the top of the load-bearing frame (1). Adjustment assemblies (11) are fixedly installed at the four corners of the bottom of the load-bearing frame (1).

2. A plastic injection molding machine with a quick mold changing device according to claim 1, characterized in that: The installation assembly (5) includes two positioning frames (501). The two positioning frames (501) are fixedly installed on the side of the positioning plate (3) and the movable plate (4) respectively. A bidirectional motor (502) is fixedly installed on the front side of the positioning frame (501). A bidirectional threaded rod (503) is rotatably connected to the inner cavity of the positioning frame (501) at the output end of the bidirectional motor (502). A threaded sleeve (504) is threadedly connected to the opposite side of the surface of the bidirectional threaded rod (503). The side of the threaded sleeve (504) away from the bidirectional threaded rod (503) is fixedly installed on the load-bearing plate (505).

3. A plastic injection molding machine with a quick mold changing device according to claim 2, characterized in that: The positioning plate (3) and the movable plate (4) are both fixedly installed with a retaining rod (506) on the front and rear sides of opposite sides. The side of the retaining rod (506) closest to the positioning frame (501) is fixedly installed with the positioning frame (501).

4. A plastic injection molding machine with a quick mold changing device according to claim 1, characterized in that: The ejection assembly (7) includes a mounting plate (701), the right side of which is fixedly installed with the movable plate (4), and the four corners of the left side of the movable plate (4) are fixedly installed with reset springs (702), the left side of which is fixedly installed with the movable frame (703).

5. A plastic injection molding machine with a quick mold changing device according to claim 1, characterized in that: The transport assembly (10) includes a mounting frame (1001), the left side of which is slidably connected to the inner cavity of the load-bearing frame (1). A hydraulic rod two (1002) is fixedly mounted on the top of the mounting frame (1001), and a motor three (1003) is fixedly mounted on the left side of the hydraulic rod two (1002). The surface of the motor three (1003) is slidably connected to the mounting frame (1001), and a threaded transport rod (1004) is fixedly mounted on the output end of the motor three (1003). The surface of the threaded transport rod (1004) is fitted with a transport tube (1005). The bottom of the transport tube (1005) is fixedly installed with the load-bearing frame (1). The top left side of the transport tube (1005) is connected to the feed hopper (1006). The surface of the output end of the motor (1003) is fitted with a sealing plate (1007). The surface of the sealing plate (1007) is engaged with the inner cavity of the transport tube (1005). The surface of the transport tube (1005) is fitted with a heating element (1008).

6. A plastic injection molding machine with a quick mold change device according to claim 1, characterized in that: The adjustment assembly (11) includes a mounting shell (1101), the top of which is fixedly installed with the load-bearing frame (1). A bidirectional motor (1102) is fixedly installed on the top of the inner cavity of the mounting shell (1101). A threaded rod (1103) is rotatably connected to the inner cavity of the mounting shell (1101) at the output end of the bidirectional motor (1102). A threaded sleeve (1104) is threadedly connected to the top of the surface of the threaded rod (1103). A connecting frame (1105) is fixedly installed at the bottom of the threaded sleeve (1104). The bottom of the connecting frame (1105) extends through to the outside of the mounting shell (1101) and is secured with an anti-slip pad (1106). The surface of the connecting frame (1105) is slidably connected to the inner cavity of the mounting shell (1101).

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