Mould locking mechanism of injection molding machine

Abstract

The utility model discloses a mould locking mechanism of an injection molding machine, which relates to the technical field of mould locking mechanisms, and comprises a base, the upper surface of the base is fixedly connected with a support frame, and the inner cavity of the support frame is fixedly connected with a fixed block. A worker places a material collecting frame on the upper surface of an L-shaped supporting plate, the outer wall of the material collecting frame is movably connected with an inner cavity of a movable frame in a sleeved mode, a connecting plate moves upwards under the action of a first hydraulic rod, so that the movable frame moves towards which direction, the material collecting frame moves upwards to the position below a first mold under the action of the movable frame, and the material collecting frame moves upwards to the position below the second mold. Under the action of a first spring and a second spring, a guide rod has a certain buffer space under the action of a circular plate, so that a material collecting frame has a certain buffer space in an inner cavity of a movable frame, and meanwhile, under the action of a shock absorber, the material collecting frame can absorb shock during material collection, so that damage is avoided; and therefore, the purposes of buffering and damping during material collection are achieved.

Description

Technical Field

[0001] This utility model relates to the field of mold locking mechanism technology, specifically to a mold locking mechanism for an injection molding machine. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment for making various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molding molds. They are divided into vertical, horizontal, and all-electric types. Existing injection molding machines include an adjusting platen, a moving platen, and a fixed platen. The adjusting platen and the fixed platen form a mold-locking frame through guide rods. The adjusting platen is usually connected to the moving platen through a crosshead guide rod. When locking the mold, the moving platen is pulled by a hydraulic cylinder set on the adjusting platen to lock the mold.

[0003] For example, Chinese Patent CN112454834A discloses a mold-locking mechanism for an injection molding machine, including a fixed plate. A first rotating shaft is rotatably connected to one side of the fixed plate, and rotating rods are fixedly connected to each of the first rotating shafts. A third rotating shaft is fixedly connected to the other end of each rotating rod, and a moving plate is rotatably connected to the third rotating shaft. The rotating rods are rotatably connected together via a second rotating shaft. A second telescopic cylinder is fixedly connected to the fixed plate between the first rotating shafts via a second fixed pad. A second telescopic rod is disposed inside the second telescopic cylinder, and the second telescopic rod extends to the left and is fixedly connected to the moving plate. In this invention, the problem of mold-locking failure caused by misalignment of the molds is prevented through the action of the second telescopic cylinder, rotating rods, insert blocks, insert holes, and lifting rods. Furthermore, the first telescopic cylinder and ejector pins enable the rapid removal of the finished product from the mold, making this invention worthy of widespread promotion.

[0004] The existing technology has the following problems:

[0005] When using the clamping mechanism of an injection molding machine, the existing clamping mechanism is not convenient for buffering and shock absorption during material collection; when using the clamping mechanism of an injection molding machine, the existing clamping mechanism is not convenient for material unloading. Utility Model Content

[0006] This invention provides a mold clamping mechanism for an injection molding machine to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A clamping mechanism for an injection molding machine includes a base, a support frame fixedly connected to the upper surface of the base, a fixing block fixedly connected to the inner cavity of the support frame, a mold first fixedly connected to the top of the inner cavity of the support frame and to the right of the fixing block, a fixing plate fixedly connected to the inner cavity of the support frame and to the back of the mold first, a limiting slide plate fixedly connected to the right side of the mold first, and the right side of the limiting slide plate fixedly connected to the inner cavity of the support frame.

[0009] A hydraulic rod is fixedly connected to the inner cavity of the support frame. A connecting plate is fixedly connected to the lower surface of the hydraulic rod. The outer wall of the connecting plate is movably sleeved with the inner cavity of the support frame. A movable frame is fixedly connected to the right side of the connecting plate. An elastic rubber pad is fixedly connected to the bottom of the inner cavity of the movable frame. A shock absorber is fixedly connected to the bottom of the inner cavity of the movable frame and to the right of the elastic rubber pad. A support plate is fixedly connected to the upper surface of the shock absorber. The lower surface of the support plate is fixedly connected to the upper surface of the elastic rubber pad. An elastic rubber pad II is fixedly connected to the upper surface of the support plate. A material collection frame overlaps the upper surface of the elastic rubber pad II. The outer wall of the material collection frame is movably sleeved with the inner cavity of the moving frame. An L-shaped support plate overlaps the lower surface of the upper end of the material collection frame. A guide rod is fixedly connected to the lower surface of the L-shaped support plate. The outer wall of the guide rod is movably sleeved with the inner cavity of the moving frame. A spring I is movably sleeved with the outer wall of the guide rod. The upper surface of the spring I is fixedly connected with the inner cavity of the moving frame. The outer wall of the spring I is movably sleeved with the inner cavity of the moving frame.

[0010] A hydraulic rod two is fixedly connected to the inner cavity of the fixed block. A sealing push plate is fixedly connected to the right side of the hydraulic rod two. A limiting slide rod is fixedly connected to the left side of the sealing push plate and above the hydraulic rod two. The outer wall of the limiting slide rod is movably sleeved with the inner cavity of the fixed block. The outer wall of the sealing push plate is movably sleeved with the inner cavity of the mold one. A sealing ring overlaps on the upper left side of the sealing push plate. The left side of the sealing ring is fixedly connected to the inner cavity of the mold one. A motor is fixedly connected to the inner cavity of the fixed plate. A threaded rod is fixedly connected to the left side of the motor.

[0011] A further improvement of the present invention is that: a circular plate is fixedly connected to the lower surface of the spring, the inner cavity of the circular plate is fixedly sleeved with the outer wall of the guide rod, and the outer wall of the circular plate is movably sleeved with the inner cavity of the movable frame.

[0012] A further improvement of this utility model is that: a second spring is fixedly connected to the lower surface of the circular plate, the inner cavity of the second spring is movably sleeved with the outer wall of the guide rod, and the lower surface of the second spring is fixedly connected to the inner cavity of the movable frame.

[0013] A further improvement of this utility model is that the outer wall of the threaded rod is movably sleeved with the inner cavity of the fixed plate, and a slider is threadedly sleeved on the outer wall of the threaded rod.

[0014] A further improvement of this utility model is that: the outer wall of the slider is movably sleeved with the inner cavity of the fixed plate, and a mold is fixedly connected to the lower surface of the slider and located on the lower surface of the fixed plate.

[0015] A further improvement of the present invention is that a limiting slider is fixedly connected to the front of the mold two, and the inner cavity of the limiting slider is movably sleeved with the outer wall of the limiting slide plate.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a clamping mechanism for an injection molding machine, which employs the cooperation of a hydraulic rod, a connecting plate, a moving frame, a shock absorber, an elastic rubber pad, a guide rod, a spring, a circular plate, a spring, an L-shaped support plate, a material collection frame, and a mold. The operator places the material collection frame on the upper surface of the L-shaped support plate, causing the outer wall of the material collection frame to movably engage with the inner cavity of the moving frame. The hydraulic rod moves the connecting plate upwards, causing the moving frame to move upwards. The moving frame then moves the material collection frame upwards to below the mold. The springs provide a buffer space for the guide rod under the action of the circular plate, thus providing a buffer space for the material collection frame within the moving frame's inner cavity. Simultaneously, the shock absorber reduces vibration during material collection, preventing damage and achieving the purpose of buffering and vibration reduction during material collection.

[0018] 2. This utility model provides a mold-locking mechanism for an injection molding machine, which employs the cooperation of a motor, a threaded rod, a slider, a second mold, a limiting slider, a limiting slide plate, a first mold, and a material collection frame. The motor rotates the threaded rod, causing the slider and the second mold to move to the left under the action of the limiting slider and the limiting slide plate. The limiting slide plate keeps the second mold moving horizontally, allowing the left side of the second mold to overlap with the right side of the first mold. After the material has cooled and formed, the hydraulic rod 2 moves the sealing push plate to the right, pushing the material out of the first mold cavity and into the material collection frame, thus facilitating material unloading. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 4 This is an enlarged structural diagram of section B of the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixing plate of this utility model.

[0024] In the diagram: 1. Base; 2. Support frame; 3. Mold 1; 4. Limiting slide plate; 5. Fixing plate; 6. Fixing block; 21. Hydraulic rod 1; 22. Connecting plate; 23. Moving frame; 24. Elastic rubber pad 1; 25. Shock absorber; 26. Support plate; 27. Elastic rubber pad 2; 28. Collection frame; 29. ​​L-shaped support plate; 210. Guide rod; 211. Spring 1; 212. Round plate; 213. Spring 2; 51. Motor; 52. Threaded rod; 53. Slider; 54. Mold 2; 55. Limiting slider; 61. Hydraulic rod 2; 62. Sealing push plate; 63. Limiting slide rod; 64. Sealing ring. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments: Example

[0026] like Figure 1-5As shown, this utility model provides a clamping mechanism for an injection molding machine, including a base 1, a support frame 2 fixedly connected to the upper surface of the base 1, a fixing block 6 fixedly connected to the inner cavity of the support frame 2, a mold 3 fixedly connected to the top of the inner cavity of the support frame 2 and to the right of the fixing block 6, a fixing plate 5 fixedly connected to the inner cavity of the support frame 2 and to the back of the mold 3, a limiting slide plate 4 fixedly connected to the right side of the mold 3, the right side of the limiting slide plate 4 fixedly connected to the inner cavity of the support frame 2, and a hydraulic rod 21 fixedly connected to the inner cavity of the support frame 2. A connecting plate 22 is fixedly connected to the lower surface of the support frame 2. The outer wall of the connecting plate 22 is movably sleeved with the inner cavity of the support frame 2. A movable frame 23 is fixedly connected to the right side of the connecting plate 22. An elastic rubber pad 24 is fixedly connected to the bottom of the inner cavity of the movable frame 23. A shock absorber 25 is fixedly connected to the bottom of the inner cavity of the movable frame 23 and to the right of the elastic rubber pad 24. A support plate 26 is fixedly connected to the upper surface of the shock absorber 25. The lower surface of the support plate 26 is fixedly connected to the upper surface of the elastic rubber pad 24. An elastic rubber pad 25 is fixedly connected to the upper surface of the support plate 26. 7. A material collection frame 28 overlaps on the upper surface of the elastic rubber pad 27. The outer wall of the material collection frame 28 is movably sleeved with the inner cavity of the moving frame 23. An L-shaped support plate 29 overlaps on the lower surface of the upper end of the material collection frame 28. A guide rod 210 is fixedly connected to the lower surface of the L-shaped support plate 29. The outer wall of the guide rod 210 is movably sleeved with the inner cavity of the moving frame 23. A spring 211 is movably sleeved on the outer wall of the guide rod 210. The upper surface of the spring 211 is fixedly connected with the inner cavity of the moving frame 23. The outer wall of the spring 211 is movably sleeved with the inner cavity of the moving frame 23. The inner cavity of the fixing block 6... A hydraulic rod 61 is fixedly connected. A sealing push plate 62 is fixedly connected to the right side of the hydraulic rod 61. A limiting slide rod 63 is fixedly connected to the left side of the sealing push plate 62 and above the hydraulic rod 61. The outer wall of the limiting slide rod 63 is movably sleeved with the inner cavity of the fixing block 6. The outer wall of the sealing push plate 62 is movably sleeved with the inner cavity of the mold 3. A sealing ring 64 overlaps on the upper left side of the sealing push plate 62. The left side of the sealing ring 64 is fixedly connected to the inner cavity of the mold 3. A motor 51 is fixedly connected to the inner cavity of the fixing plate 5. A threaded rod 52 is fixedly connected to the left side of the motor 51.

[0027] In this embodiment, the screw rod 52 is rotated by the motor 51, which causes the slider 53 and the mold 2 54 to move to the left under the action of the limiting slider 55 and the limiting slide plate 4. The limiting slide plate 4 keeps the mold 2 54 moving horizontally, so that the left side of the mold 2 54 overlaps with the right side of the mold 3. After the object is formed and cooled, the sealing push plate 62 is moved to the right by the hydraulic rod 2 61, so that the object in the inner cavity of the mold 3 is pushed out of the inner cavity of the mold 3 and falls into the inner cavity of the collection frame 28. Example

[0028] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a circular plate 212 is fixedly connected to the lower surface of spring 211, the inner cavity of the circular plate 212 is fixedly sleeved with the outer wall of the guide rod 210, the outer wall of the circular plate 212 is movably sleeved with the inner cavity of the movable frame 23, a second spring 213 is fixedly connected to the lower surface of the circular plate 212, the inner cavity of the second spring 213 is movably sleeved with the outer wall of the guide rod 210, and the lower surface of the second spring 213 is fixedly connected with the inner cavity of the movable frame 23.

[0029] In this embodiment, the worker places the material collection frame 28 on the upper surface of the L-shaped support plate 29, so that the outer wall of the material collection frame 28 is movably connected to the inner cavity of the moving frame 23. Through the action of the hydraulic rod 21, the connecting plate 22 moves upward, thereby moving the moving frame 23 upward. Through the action of the moving frame 23, the material collection frame 28 moves upward to below the mold 3. Through the action of the spring 211 and the spring 213, the guide rod 210 has a certain buffer space under the action of the circular plate 212, so that the material collection frame 28 has a certain buffer space in the inner cavity of the moving frame 23. At the same time, through the action of the shock absorber 25, the material collection frame 28 can be shock-absorbing during material collection, thereby avoiding damage, thus achieving the purpose of buffering and shock absorption during material collection. Example

[0030] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the outer wall of the threaded rod 52 is movably sleeved with the inner cavity of the fixing plate 5, the outer wall of the threaded rod 52 is threaded with a slider 53, the outer wall of the slider 53 is movably sleeved with the inner cavity of the fixing plate 5, the lower surface of the slider 53 and located on the lower surface of the fixing plate 5 is fixedly connected with a mold 2 54, the front of the mold 2 54 is fixedly connected with a limiting slider 55, and the inner cavity of the limiting slider 55 is movably sleeved with the outer wall of the limiting slide plate 4.

[0031] In this embodiment, the motor 51 causes the threaded rod 52 to rotate, thereby causing the slider 53 and the mold 2 54 to move to the left under the action of the limiting slider 55 and the limiting slide plate 4. The limiting slide plate 4 keeps the mold 2 54 moving horizontally, so that the left side of the mold 2 54 overlaps with the right side of the mold 3. After the object is formed and cooled, the hydraulic rod 2 61 causes the sealing push plate 62 to move to the right, so that the object in the inner cavity of the mold 3 is pushed out of the inner cavity of the mold 3 and falls into the inner cavity of the collection frame 28, thereby facilitating the unloading of materials.

[0032] The working principle of the mold clamping mechanism of this injection molding machine will be explained in detail below.

[0033] like Figure 1-5As shown, the worker places the collecting frame 28 on the upper surface of the L-shaped support plate 29, so that the outer wall of the collecting frame 28 is movably fitted with the inner cavity of the moving frame 23. The hydraulic rod 21 causes the connecting plate 22 to move upward, thereby moving the moving frame 23 upward. The moving frame 23 then moves the collecting frame 28 upward to below the mold 3. The motor 51 rotates the threaded rod 52, causing the slider 53 and the mold 54 to move to the left under the action of the limiting slider 55 and the limiting slide plate 4. The limiting slide plate 4 keeps the mold 54 moving horizontally. This causes the left side of mold 2 54 to overlap with the right side of mold 1 3. After the object is formed and cooled, the sealing push plate 62 moves to the right through the action of hydraulic rod 2 61, so that the object in the inner cavity of mold 1 3 is pushed out of the inner cavity of mold 1 3 and falls into the inner cavity of the collection frame 28. Through the action of spring 1 211 and spring 2 213, the guide rod 210 has a certain buffer space under the action of the circular plate 212, so that the collection frame 28 has a certain buffer space in the inner cavity of the moving frame 23. At the same time, through the action of shock absorber 25, the collection frame 28 can be shock-absorbing during material collection, thereby avoiding damage.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A clamping mechanism of an injection molding machine comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a support frame (2), the inner cavity of the support frame (2) is fixedly connected with a fixed block (6), the top of the inner cavity of the support frame (2) and right side of the fixed block (6) is fixedly connected with a mold one (3), the inner cavity of the support frame (2) and back of the mold one (3) is fixedly connected with a fixed plate (5), the right side of the mold one (3) is fixedly connected with a limit sliding plate (4), the right side of the limit sliding plate (4) and the inner cavity of the support frame (2) are fixedly connected; The inner cavity of the support frame (2) is fixedly connected with a hydraulic rod one (21), the lower surface of the hydraulic rod one (21) is fixedly connected with a connecting plate (22), the outer wall of the connecting plate (22) and the inner cavity of the support frame (2) are movably sleeved, the right side of the connecting plate (22) is fixedly connected with a moving frame (23), the inner cavity bottom of the moving frame (23) is fixedly connected with an elastic rubber pad one (24), the inner cavity bottom of the moving frame (23) and right side of the elastic rubber pad one (24) is fixedly connected with a shock absorber (25), the upper surface of the shock absorber (25) is fixedly connected with a support plate (26), the lower surface of the support plate (26) and the upper surface of the elastic rubber pad one (24) are fixedly connected, the upper surface of the support plate (26) is fixedly connected with an elastic rubber pad two (27), the upper surface of the elastic rubber pad two (27) is overlapped with a material collecting frame (28), the outer wall of the material collecting frame (28) and the inner cavity of the moving frame (23) are movably sleeved, the upper end lower surface of the material collecting frame (28) is overlapped with an L-shaped support plate (29), the lower surface of the L-shaped support plate (29) is fixedly connected with a guide rod (210), the outer wall of the guide rod (210) and the inner cavity of the moving frame (23) are movably sleeved, the outer wall of the guide rod (210) is movably sleeved with a spring one (211), the upper surface of the spring one (211) and the inner cavity of the moving frame (23) are fixedly connected, the outer wall of the spring one (211) and the inner cavity of the moving frame (23) are movably sleeved; The inner cavity of the fixed block (6) is fixedly connected with a hydraulic rod two (61), the right side of the hydraulic rod two (61) is fixedly connected with a sealing push plate (62), the left side of the sealing push plate (62) and above the hydraulic rod two (61) is fixedly connected with a limit sliding rod (63), the outer wall of the limit sliding rod (63) and the inner cavity of the fixed block (6) are movably sleeved, the outer wall of the sealing push plate (62) and the inner cavity of the mold one (3) are movably sleeved, the upper end left side of the sealing push plate (62) is overlapped with a sealing ring (64), the left side of the sealing ring (64) and the inner cavity of the mold one (3) are fixedly connected, the inner cavity of the fixed plate (5) is fixedly connected with a motor (51), the left side of the motor (51) is fixedly connected with a threaded rod (52).

2. A clamp mechanism for an injection molding machine as defined in claim 1, wherein: The lower surface of the spring one (211) is fixedly connected with a circular plate (212), the inner cavity of the circular plate (212) and the outer wall of the guide rod (210) are fixedly sleeved, the outer wall of the circular plate (212) and the inner cavity of the moving frame (23) are movably sleeved.

3. A clamp mechanism for an injection molding machine as defined in claim 2, wherein: The lower surface of the circular plate (212) is fixedly connected with spring two (213), the inner cavity of spring two (213) is movably sleeved with the outer wall of guide rod (210), and the lower surface of spring two (213) is fixedly connected with the inner cavity of moving frame (23).

4. The clamp mechanism of claim 1 wherein: The outer wall of the threaded rod (52) is movably sleeved with the inner cavity of the fixed plate (5), and the outer wall of the threaded rod (52) is threadedly sleeved with the sliding block (53).

5. A clamp mechanism for an injection molding machine as defined in claim 4, wherein: The outer wall of the sliding block (53) is movably sleeved with the inner cavity of the fixed plate (5), and the lower surface of the sliding block (53) and located on the lower surface of the fixed plate (5) is fixedly connected with the mold two (54).

6. A clamp mechanism for an injection molding machine as defined in claim 5, wherein: The front surface of the mold two (54) is fixedly connected with the limiting sliding block (55), and the inner cavity of the limiting sliding block (55) is movably sleeved with the outer wall of the limiting sliding plate (4).

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