Mould locking protection device of vertical injection molding machine

Abstract

The utility model discloses a mold locking protection device of a vertical injection molding machine, which belongs to the technical field of mold mounting and comprises a vertical injection molding machine body, a lower mold mounted at a fixed end of the vertical injection molding machine body and an upper mold mounted at a movable end of the vertical injection molding machine body. Supports fixedly connected with the fixed end of the vertical injection molding machine body are symmetrically arranged on the two sides of the upper mold, moving blocks are slidably arranged on the supports in the vertical direction, the moving blocks are located on the upper portion of the moving end of the vertical injection molding machine body and make contact with each other, and transmission assemblies are arranged in the supports and fixedly connected with the moving blocks. The support plate in sliding fit with the support is arranged on the support in a penetrating mode, the support plate is fixedly connected with the output end of the transmission assembly, the upper die can be locked after die opening, and safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mold installation, and more specifically to a mold locking protection device for a vertical injection molding machine. Background Art

[0002] Vertical injection molding machine is a mechanical equipment, usually composed of injection system, mold clamping system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system and safety monitoring system.

[0003] The existing vertical injection molding machine needs to be used with different molds to produce different products. The product processing is divided into two steps: injection molding and mold opening and taking out parts. When opening the mold to take out parts, the vertical injection molding machine will directly separate the upper mold and the lower mold, so that it is convenient for workers to take out the products inside the lower mold. However, after long-term use, the aging failure of the cylinder seal ring, the failure of computer control and unreasonable operation will cause the upper mold to fall and injure the operator's personal safety. This phenomenon occurs commonly. Therefore, many operators have a fear of the upper mold falling when operating a vertical injection molding machine with a long service life, which poses a safety hazard. A solution is proposed below to address the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a mold locking protection device for a vertical injection molding machine, which can lock the upper mold after the mold is opened to ensure safety.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A locking mold protection device for a vertical injection molding machine comprises a vertical injection molding machine body, a lower mold installed at the fixed end of the vertical injection molding machine body and an upper mold installed at the movable end of the vertical injection molding machine body, brackets fixedly connected to the fixed end of the vertical injection molding machine body are symmetrically arranged on both sides of the upper mold, a moving block is slidably arranged on the bracket in the vertical direction, the moving block is located at the upper part of the movable end of the vertical injection molding machine body and contacts with each other, a transmission assembly is arranged inside the bracket, the transmission assembly is fixedly connected to the moving block, a support plate slidingly matched with the bracket is passed through the bracket, and the support plate is fixedly connected to the output end of the transmission assembly.

[0007] Preferably, the transmission assembly includes a first gear, a first rack, a first pulley, a second gear, a second rack, a second pulley and a transmission belt, the first rack is fixedly connected to the moving block, the first gear is rotatably arranged inside the bracket, the first gear and the first rack are meshed with each other, the first pulley and the first gear are fixedly connected and concentric, the second rack is fixedly connected to the side of the support plate, the second gear and the bracket are rotatably matched, the second gear and the second rack are meshed with each other, the second pulley and the second gear are fixedly connected and concentric, and the first pulley and the second pulley are connected by a transmission belt.

[0008] Preferably, a return spring is installed between the moving block and the bracket to return the moving block downward.

[0009] Preferably, a buffer zone exists between the support plate and the upper mold.

[0010] Preferably, outer sleeves for guiding and supporting the support plate are symmetrically arranged on both sides of the bracket, and one end of the support plate is slidably arranged inside the outer cylinder.

[0011] Preferably, the bracket and the fixed end of the vertical injection molding machine body are connected by bolts.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. When the moving end of the vertical injection molding machine body drives the upper mold to move upward to open the mold, it will drive the moving block to move. Through the transmission of the transmission assembly, the support plate will move toward the direction close to the upper mold, so that it appears below the upper mold, thereby blocking the upper mold and the lower mold, avoiding the upper mold from falling off and causing danger when taking the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of the bracket of the utility model.

[0017] Description of the numbers in the figure:

[0018] 1. Vertical injection molding machine body; 2. Fixed end; 3. Lower mold; 4. Moving end; 5. Upper mold; 6. Bracket; 7. Moving block; 8. Transmission assembly; 9. Support plate; 10. First gear; 11. First rack; 12. First pulley; 13. Second gear; 14. Second rack; 15. Second pulley; 16. Reset spring; 17. Buffer zone; 18. Jacket; 19. Bolt; 20 Transmission belt. DETAILED DESCRIPTION

[0019] Embodiment 1:

[0020] See also Figure 1-3 A locking mold protection device for a vertical injection molding machine includes a vertical injection molding machine body 1, a lower mold 3 installed at a fixed end 2 of the vertical injection molding machine body 1, and an upper mold 5 installed at a movable end 4 of the vertical injection molding machine body 1. Brackets 6 are symmetrically arranged on both sides of the upper mold 5. The brackets 6 are fixedly connected to the fixed end 2 of the vertical injection molding machine body 1 by bolts 19. The bolts 19 are used to facilitate the disassembly of the brackets 6, thereby facilitating the maintenance of the brackets 6 or the vertical injection molding machine body 1.

[0021] A moving block 7 is provided on the bracket 6 for sliding in the vertical direction. The moving block 7 is located at the upper part of the moving end 4 of the vertical injection molding machine body 1 and contacts each other. A return spring 16 is installed between the moving block 7 and the bracket 6 to reset the moving block 7 downward. A support plate 9 that slides with the bracket 6 is passed through the bracket 6. A sleeve 18 that guides and supports the support plate 9 is symmetrically provided on both sides of the bracket 6. One end of the support plate 9 is slidably arranged inside the outer cylinder. When the moving block 7 is at the bottom of the stroke, the distance between the support plate 9 and the support plate 9 is greater than the thickness of the moving end 4 of the vertical injection molding machine body 1. A transmission assembly 8 is provided inside the bracket 6 to enable the support plate 9 to move toward the upper mold 5 by moving the moving block 7 upward. When the moving end 4 of the vertical injection molding machine body 1 moves to the top of the stroke of the moving block 7, there is a buffer zone 17 between the support portion and the upper mold 5. When the bottom of the upper mold 5 moves to the bottom of the buffer zone 17, the support plate 9 moves out from directly below the upper mold 5.

[0022] The transmission assembly 8 includes a first gear 10, a first rack 11, a first pulley 12, a second gear 13, a second rack 14, a second pulley 15 and a transmission belt. The first rack 11 is fixedly connected to the moving block 7, the first gear 10 is rotatably arranged inside the bracket 6, the first gear 10 and the first rack 11 are meshed with each other, the first pulley 12 and the first gear 10 are concentric and fixedly connected, the second rack 14 is fixedly connected to the side of the support plate 9, the second gear 13 is rotatably matched with the bracket 6, the second gear 13 and the second rack 14 are meshed with each other, the second pulley 15 and the second gear 13 are concentric and fixedly connected, and the first pulley 12 and the second pulley 15 are matched through the transmission belt transmission, and the diameter of the first pulley 12 is larger than that of the second pulley 15.

[0023] Working principle:

[0024] During injection molding, the moving end 4 of the vertical injection molding machine body 1 drives the upper mold 5 to move downward, so that the upper mold 5 and the lower mold 3 are closed, and the vertical injection molding machine body 1 is used to perform injection molding between the upper mold 5 and the lower mold 3 to produce the product;

[0025] When taking materials, the moving end 4 of the vertical injection molding machine body 1 drives the upper mold 5 to move upward, and the moving end 4 of the vertical injection molding machine body 1 contacts the moving block 7, thereby driving the moving block 7 to move upward, and the moving block 7 will drive the first rack 11 to move, thereby driving the first gear 10 to rotate, that is, driving the first pulley 12 to rotate, and the first pulley 12 drives the second pulley 15 to rotate through the transmission belt, and the second pulley 15 drives the second gear 13 to rotate, thereby driving the second rack 14 to move, that is, the second rack 14 drives the support plate 9 to move, until the support plate 9 moves to the bottom of the upper mold 5, thereby playing a supporting and buffering role. When the moving block 7 moves, the spring will be stretched, so that the spring generates a pulling force for resetting the moving block 7.

Claims

1. A clamping protection device for a vertical injection molding machine. Features: The invention comprises a vertical injection molding machine body (1), a lower mold (3) installed at a fixed end (2) of the vertical injection molding machine body (1), and an upper mold (5) installed at a movable end (4) of the vertical injection molding machine body (1); brackets (6) fixedly connected to the fixed end (2) of the vertical injection molding machine body (1) are symmetrically arranged on both sides of the upper mold (5); a moving block (7) is slidably arranged on the bracket (6) in a vertical direction; the moving block (7) is located at the upper part of the movable end (4) of the vertical injection molding machine body (1) and contacts each other; a transmission assembly (8) is arranged inside the bracket (6); the transmission assembly (8) and the moving block (7) are fixedly connected; a support plate (9) is passed through the bracket (6) and is slidably matched with the bracket (6); the support plate (9) is fixedly connected to the output end of the transmission assembly (8).

2. A mold locking protection device for a vertical injection molding machine according to claim 1, Features: The transmission assembly (8) comprises a first gear (10), a first rack (11), a first pulley (12), a second gear (13), a second rack (14), a second pulley (15) and a transmission belt, wherein the first rack (11) is fixedly connected to the moving block (7), the first gear (10) is rotatably arranged inside the bracket (6), the first gear (10) and the first rack (11) are meshed with each other, the first pulley (12) and the first gear (10) are fixedly connected and concentric, the second rack (14) is fixedly connected to the side of the support plate (9), the second gear (13) and the bracket (6) are rotatably matched, the second gear (13) and the second rack (14) are meshed with each other, the second pulley (15) and the second gear (13) are fixedly connected and concentric, and the first pulley (12) and the second pulley (15) are connected by a transmission belt.

3. A mold locking protection device for a vertical injection molding machine according to claim 1, Features: A return spring (16) is installed between the moving block (7) and the bracket (6) to return the moving block (7) downward.

4. A mold locking protection device for a vertical injection molding machine according to claim 1, Features: A buffer zone (17) exists between the support plate (9) and the upper mold (5).

5. The mold locking protection device for a vertical injection molding machine according to claim 1, Features: The two sides of the bracket (6) are symmetrically provided with outer sleeves (18) that play a guiding and supporting role for the support plate (9), and one end of the support plate (9) is slidably arranged inside the outer cylinder.

6. A mold locking protection device for a vertical injection molding machine according to claim 1, Features: The bracket (6) and the fixed end (2) of the vertical injection molding machine body (1) are connected by bolts (19).

Images