Injection mold convenient for stripping

Abstract

The injection mold comprises a left frame and a right frame, the right frame is arranged outside the left frame, an injection molding hole is formed in one side of the left frame, a left mold is arranged on the other side of the left frame, the injection molding hole is communicated with the left mold, a right mold is arranged on one side of the right frame, and the injection molding hole is communicated with the right mold. A second air cylinder is arranged in the right frame, a second push arm is installed at the output end of the second air cylinder, an ejector pin is arranged at the end, away from the second air cylinder, of the second push arm, the ejector pin is slidably connected with the right frame and can extend into the right mold, and a first air cylinder is arranged on the side wall, on one side of the right mold, of the right frame. Limiting strips are symmetrically arranged on the side wall, on one side of the first air cylinder, of the right mold, and placing blocks are slidably arranged in the limiting strips. According to the bent pipe injection mold, injection molding production of bent pipes is completed through multi-position matching, the bent pipes can be conveniently ejected and stripped, and the convenience of product stripping is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that facilitates material removal. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are typically made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine (or injection molding machine for short) is the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and a mold. During injection molding production, the finished product is usually ejected from the mold by its own weight, which has low ejection efficiency. To improve this situation, an injection mold that facilitates material ejection has been proposed.

[0003] For example, the injection mold disclosed in the authorization announcement number CN218256483U for easy material removal includes a lower mold base, an upper mold base and a mold core block. The upper mold base is installed on the top of the lower mold base, the mold core block is slidably installed inside the lower mold base, a limiting mechanism for easy material removal is slidably installed on the inner wall of the lower mold base, and a connecting mechanism for assembly is symmetrically fixedly connected to the bottom of the mold core block.

[0004] Although it achieves the advantages of easy material removal of injection molds through the installation of connecting and limiting mechanisms, it facilitates quick material removal from the lower and upper mold bases. During the material removal process, the processed parts will not be easily damaged, thus improving the material removal speed. At the same time, it facilitates quick assembly of the lower and upper mold bases, making disassembly and maintenance convenient and improving the service life of the injection mold.

[0005] However, this does not solve the problem that existing injection molds are not conducive to multi-position coordination for completing injection molding of bent tubes, nor to ejecting and unloading bent tubes, thus affecting the convenience of product unloading. Utility Model Content

[0006] The purpose of this utility model is to provide an injection mold that facilitates material removal, thereby solving the problem mentioned in the background art that the injection mold is not convenient for multi-position cooperation to complete the injection production of bent tubes, which is not conducive to ejecting and removing the bent tubes and affects the convenience of product removal.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy material removal, comprising a left frame and a right frame, wherein a right frame is provided outside the left frame, an injection hole is provided on one side of the left frame, and a left mold is provided on the other side of the left frame, with the injection hole communicating with the left mold; a right mold is provided on one side of the right frame, and a second cylinder is provided inside the right frame, with a second push arm installed at the output end of the second cylinder, and an ejector pin is provided at the end of the second push arm away from the second cylinder, and the ejector pin is slidably connected to the right frame, and the ejector pin can extend into the interior of the right mold; a first cylinder is provided on the side wall of the right frame on one side of the right mold, and limit strips are symmetrically provided on the side wall of the right mold on one side of the first cylinder, with a placement block slidably provided inside the limit strip.

[0008] Preferably, a servo motor is provided on the side wall of the placement block, and a drive shaft is installed at the output end of the servo motor.

[0009] Preferably, a connecting shaft is provided at the end of the drive shaft away from the servo motor, and the surface of the connecting shaft is provided with external threads.

[0010] Preferably, a limiting block is provided on the right frame sidewall on one side of the placement block, and the external thread is threadedly connected to the limiting block.

[0011] Preferably, a tapping block is provided at the end of the connecting shaft away from the limiting block, and the tapping block is fixedly connected to the connecting shaft.

[0012] Preferably, a first push arm is installed at the output end of the first cylinder, and a linkage block is movably installed at the end of the first push arm away from the first cylinder.

[0013] Preferably, an inner block is provided at the end of the linkage block away from the first push arm, and the inner block is movably connected to the linkage block.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the injection mold not only realizes the injection production of the bent tube by multi-position cooperation, which facilitates the ejection and unloading of the bent tube, but also improves the convenience of product unloading.

[0015] By mounting the left and right frames onto an injection molding machine and connecting the injection holes to the material injection tube, this mold is used to produce bent pipes. When a bent pipe needs to be produced, the injection molding machine is controlled to bring the left and right frames into contact, causing the right and left molds to close. The first cylinder drives the first push arm to move, and the first push arm, through a linkage block, drives the inner mold block to move, moving the first push arm into the interior of the right mold and connecting it with the tapping block. The inner mold block and the tapping block shape the bent pipe from the inside, and the material is injected through the injection holes into the interior of the left and right molds to complete the injection molding production of the bent pipe. Afterwards, the injection molding machine is controlled to move the left frame away from the right frame. At this time, the first cylinder remains in its current state, and the servo motor drives the drive shaft to rotate, which in turn drives the connecting shaft. The system rotates, with the connecting shaft driving the external thread to rotate. Simultaneously, the connecting shaft moves laterally, causing the tapping block to rotate and move laterally, thus disengaging the tapping block from the bend and ensuring the integrity of the internal threads. Then, the first cylinder is opened in the reverse direction, causing the first push arm to retract. The first push arm, through a linkage block, moves the inner mold block, disengaging it from the bend. The second cylinder then drives the second push arm, which in turn moves the ejector pin. The ejector pin moves into the right mold, pushing the bend out of the mold, thus completing the bend unloading process. This multi-position coordination enables injection molding of the bend, facilitating ejection and reducing manual unloading, thereby improving the convenience of bend unloading. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a structural diagram of the left and right frames of this utility model on opposite sides;

[0019] Figure 4 This is a three-dimensional structural diagram of the right frame of this utility model;

[0020] Figure 5 This is a side view sectional structural diagram of the right frame of this utility model.

[0021] In the diagram: 1. Left frame; 2. Injection hole; 3. Right frame; 4. Right mold; 5. Left mold; 6. Servo motor; 7. Drive shaft; 8. Connecting shaft; 9. External thread; 10. Tapping block; 11. Limiting block; 12. Inner mold block; 13. Linkage block; 14. First push arm; 15. First cylinder; 16. Limiting strip; 17. Placement block; 18. Second cylinder; 19. Ejector pin; 20. Second push arm. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5 The present invention provides an embodiment of an injection mold for easy material removal, comprising a left frame 1 and a right frame 3. The right frame 3 is provided outside the left frame 1. An injection hole 2 is provided on one side of the left frame 1. A left mold 5 is provided on the other side of the left frame 1, and the injection hole 2 is connected to the left mold 5. A right mold 4 is provided on one side of the right frame 3. A second cylinder 18 is provided inside the right frame 3. A second push arm 20 is installed at the output end of the second cylinder 18. An ejector pin 19 is provided at the end of the second push arm 20 away from the second cylinder 18. The ejector pin 19 is slidably connected to the right frame 3 and can extend into the interior of the right mold 4. A first cylinder 15 is provided on the side wall of the right frame 3 on one side of the right mold 4. The first cylinder 15 plays a power driving role. Limiting strips 16 are symmetrically provided on the side wall of the right mold 4 on one side of the first cylinder 15, and a placement block 17 is slidably provided inside the limiting strip 16.

[0024] A servo motor 6 is provided on the side wall of the placement block 17. The servo motor 6 plays the role of power drive, and a drive shaft 7 is installed at the output end of the servo motor 6.

[0025] A connecting shaft 8 is provided at the end of the drive shaft 7 away from the servo motor 6. The surface of the connecting shaft 8 is provided with an external thread 9. A limit block 11 is provided on the side wall of the right frame 3 on the side of the placement block 17, and the external thread 9 is threadedly connected to the limit block 11.

[0026] A tapping block 10 is provided at the end of the connecting shaft 8 away from the limiting block 11, and the tapping block 10 is fixedly connected to the connecting shaft 8. A first push arm 14 is installed at the output end of the first cylinder 15, and a linkage block 13 is movably installed at the end of the first push arm 14 away from the first cylinder 15.

[0027] An inner molded block 12 is provided at the end of the linkage block 13 away from the first push arm 14, and the inner molded block 12 is movably connected to the linkage block 13. The left frame 1 and the right frame 3 are respectively installed on the injection molding machine, and the injection hole 2 is connected to the material injection pipe. This mold is used to produce bent pipes. When it is necessary to produce bent pipes, the injection molding machine is controlled to drive the left frame 1 and the right frame 3 to contact each other, so that the right mold 4 and the left mold 5 close. The first cylinder 15 is opened, and the first cylinder 15 drives the first push arm 14 to move. The first push arm 14 is connected to the linkage block 13. The moving block 13 drives the inner mold block 12 to move, causing the first push arm 14 to move into the inside of the right mold 4 and connect with the tapping block 10. The inner mold block 12 and the tapping block 10 shape the bent tube from the inside, and inject the material through the injection hole 2 into the inside of the left mold 5 and the right mold 4 to complete the injection molding production of the bent tube. Afterwards, the injection molding machine is operated to move the left frame 1 away from the right frame 3. At this time, the first cylinder 15 remains in its current state, the servo motor 6 is turned on, and the servo motor 6 drives the drive shaft 7 to rotate. The drive shaft 7 then... The connecting shaft 8 rotates, driving the external thread 9 to rotate. With the external thread 9 threadedly connected to the limiting block 11, and the sliding engagement between the placement block 17 and the limiting strip 16, the connecting shaft 8 rotates while simultaneously moving laterally. This rotation, in turn, causes the tapping block 10 to rotate while also moving laterally, disengaging the tapping block 10 from the bend and ensuring the integrity of the internal threads. Then, the first cylinder 15 is opened in the reverse direction, causing the first push arm 14 to retract. The first push arm 14 then retracts via a connecting... The moving block 13 drives the inner block 12 to move, so as to remove the inner block 12 from the inside of the bent tube. Then, the second cylinder 18 is opened, which drives the second push arm 20 to move. The second push arm 20 drives the ejector pin 19 to move. The ejector pin 19 moves into the right mold 4 and ejects the bent tube from the right mold 4 to complete the unloading of the bent tube. This realizes the injection molding production of the bent tube by multi-position cooperation, which facilitates the ejection and unloading of the bent tube, reduces the need for manual unloading, and improves the convenience of unloading the bent tube.

[0028] Working principle: The left frame 1 and right frame 3 are respectively installed on the injection molding machine. The injection hole 2 is connected to the material injection tube. This mold is used to produce bent tubes. When a bent tube needs to be produced, the injection molding machine is controlled to drive the left frame 1 and right frame 3 to contact each other, so that the right mold 4 and left mold 5 close. The first cylinder 15 drives the first push arm 14 to move. The first push arm 14 drives the inner mold block 12 to move through the linkage block 13, so that the first push arm 14 moves into the inside of the right mold 4 and connects with the tapping block 10. The inner mold block 12 and the tapping block 10 shape the bent tube from the inside. The material is injected through the injection hole 2 into the inside of the left mold 5 and right mold 4 to complete the injection molding production of the bent tube. Afterwards, the injection molding machine is controlled to drive the left frame 1 away from the right frame 3. At this time, the first cylinder 15 remains in its current state. The servo motor 6 drives the drive shaft 7 to rotate. The drive shaft 7 drives the... The moving connecting shaft 8 rotates, which drives the external thread 9 to rotate. With the external thread 9 and the limiting block 11 threadedly connected, and with the sliding cooperation between the placement block 17 and the limiting strip 16, the connecting shaft 8 moves laterally while rotating. The connecting shaft 8 drives the tapping block 10 to rotate while moving laterally, so as to disengage the tapping block 10 from the bent tube and ensure that the internal threads of the bent tube are intact. Then, the first cylinder 15 is opened in the reverse direction, which drives the first push arm 14 to retract. The first push arm 14 drives the inner mold block 12 to move through the linkage block 13, so as to disengage the inner mold block 12 from the bent tube. Then, the second cylinder 18 is opened, which drives the second push arm 20 to move. The second push arm 20 drives the ejector pin 19 to move. The ejector pin 19 moves into the right mold 4 and ejects the bent tube from the right mold 4 to complete the material discharge of the bent tube.

Claims

1. An injection mold for easy material removal, comprising a left frame (1) and a right frame (3), characterized in that: The left frame (1) is provided with a right frame (3) on the outside. The left frame (1) is provided with an injection hole (2) on one side. The left frame (1) is provided with a left mold (5) on the other side. The injection hole (2) is connected to the left mold (5). The right frame (3) is provided with a right mold (4) on one side. The right frame (3) is provided with a second cylinder (18) inside. The output end of the second cylinder (18) is provided with a second push arm (20). The end of the second push arm (20) away from the second cylinder (18) is provided with an ejector pin (19). The ejector pin (19) is slidably connected to the right frame (3). The ejector pin (19) can extend into the interior of the right mold (4). The right frame (3) sidewall on one side of the right mold (4) is provided with a first cylinder (15). The right mold (4) sidewall on one side of the first cylinder (15) is symmetrically provided with limit strips (16). The limit strips (16) are slidably provided with a placement block (17) inside.

2. The injection mold for easy material removal according to claim 1, characterized in that: A servo motor (6) is provided on the side wall of the placement block (17), and a drive shaft (7) is installed at the output end of the servo motor (6).

3. The injection mold for easy material removal according to claim 2, characterized in that: The drive shaft (7) is provided with a connecting shaft (8) at the end away from the servo motor (6), and the surface of the connecting shaft (8) is provided with an external thread (9).

4. The injection mold for easy material removal according to claim 1, characterized in that: A limiting block (11) is provided on the side wall of the right frame (3) on one side of the placement block (17), and the external thread (9) is threadedly connected to the limiting block (11).

5. The injection mold for easy material removal according to claim 3, characterized in that: A tapping block (10) is provided at one end of the connecting shaft (8) away from the limiting block (11), and the tapping block (10) is fixedly connected to the connecting shaft (8).

6. The injection mold for easy material removal according to claim 1, characterized in that: The first cylinder (15) has a first push arm (14) installed at its output end, and a linkage block (13) is movably installed at the end of the first push arm (14) away from the first cylinder (15).

7. The injection mold for easy material removal according to claim 6, characterized in that: An inner block (12) is provided at one end of the linkage block (13) away from the first push arm (14), and the inner block (12) is movably connected to the linkage block (13).

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