Opening and closing device of two-plate type mold closing machine

Abstract

The utility model discloses an opening and closing device of a two-plate type mold closing machine. The opening and closing device comprises a brake block, a wedge block, an opening and closing drive, a mold locking wedge and a mold locking drive, the wedge block, the mold locking drive and the opening and closing drive are all installed on the back side of the movable plate, a plurality of protruding teeth are arranged on the outer wall of the brake block, and a plurality of transverse grooves meshed with the protruding teeth in a matched mode are formed in the pull rod. The mold locking wedge is clamped by the brake block and the wedge block and is in sliding connection with the brake block and the wedge block, and the mold locking drive drives the mold locking wedge to move in the direction perpendicular to the moving direction of the movable plate, so that the mold locking wedge is gradually wedged with the wedge block, and the movable plate is gradually pressed to be locked on the back side of the movable plate. The brake block is arranged on the back side of the movable plate, reverse supporting of mold locking force is achieved through meshing of the protruding teeth and the transverse grooves, the transverse grooves are formed in the pull rod at equal intervals, the protruding teeth can be meshed at different positions, and mold adjustment is achieved; due to the fact that the brake block is integrated, the risk that the brake block is ejected is avoided, the brake block is matched with the mold locking wedge to achieve mold locking, the wedge has the force increasing effect, the size specification of the mold locking oil cylinder can be greatly reduced, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection molding machine, die casting machine technical field, concretely relates to a kind of opening and closing brake devices of two-plate mold clamping machine. BACKGROUND

[0002] Two-plate mold clamping machine is mainly composed of fixed fixed plate and moving dynamic plate, when needing mold clamping, dynamic plate moves to fixed plate, then opening and closing brake mechanism brake embrace pull rod, locking device further through pull rod and applies locking force.Currently, the general two-plate mold clamping mechanism has four pull rods and the corresponding four opening and closing brakes, and the traditional opening and closing brake device has two brake blocks, which simultaneously move to the center under the drive of oil cylinder, that is, mesh with pull rod from the outside.The most important problem of this two brake blocks opening and closing brake mode is that the locking mechanism needs to give high pressure to make the movable die and the fixed die adhere, which will give the opening and closing brake device a force in the opposite direction with the same size as the locking force, making the brake block have the tendency of being opened and meshed and sliding relatively.

[0003] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide an opening and closing brake device of two-plate mold clamping machine, which meshes with the pull rod from the inside, avoiding the risk of the two brake blocks being opened in the traditional mechanism.

[0005] To solve the above technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0006] An opening and closing brake device of two-plate mold clamping machine, comprising a brake block, a wedge block, an opening and closing brake drive, a locking wedge, and a locking drive.

[0007] The wedge block, the locking drive and the opening and closing brake drive are all installed on the back side of the dynamic plate, the dynamic plate is slidably connected with the pull rod and moves towards or away from the fixed plate along the long axis of the pull rod, the outer wall of the brake block is provided with a plurality of protruding teeth, the pull rod is provided with a plurality of horizontal grooves matched with the protruding teeth, and the opening and closing brake drive drives the brake block to move along the vertical direction of the dynamic plate to mesh the protruding teeth with the horizontal grooves.

[0008] The locking wedge is clamped by the brake block and the wedge block, and is slidably connected with them, the locking drive drives the locking wedge to move along the vertical direction of the dynamic plate, so that the locking wedge is gradually wedged with the wedge block, and the dynamic plate is gradually pressed and locked on the back side.

[0009] Further, the pull rod is provided with a sliding groove in the middle part along the long axis, the dynamic plate is provided with a protruding block, the protruding block extends into the sliding groove and is slidably connected with it, the wedge block is installed on the protruding block, and the horizontal grooves are arranged on the two side walls of the sliding groove.

[0010] Further, the outer wall of the gate block is provided with protruding teeth arranged in rows, the number of rows of the protruding teeth is N, and the number of rows of the transverse grooves is M, and M>N.

[0011] Further, the mold locking drive is mounted on the back side outer wall of the movable plate, and the opening and closing gate drive is mounted on the back side outer wall of the movable plate through the drive mechanism support.

[0012] Further, the gate block is in the shape of a cubic block, and the protruding teeth are arranged on the left and right outer walls and the top outer wall of the gate block, and the cross-shaped transverse grooves are arranged on the pull rod in a corresponding manner.

[0013] After the above technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art.

[0014] 1. Compared with the traditional opening and closing gate structure, the number of gate blocks is reduced from two to one, and it is not necessary to push two gate blocks to move simultaneously, so that the structure is simplified and the stability is improved.

[0015] 2. The structure of one gate block avoids the risk of the two gate blocks being pushed open due to the mold locking counterforce in the traditional opening and closing gate structure.

[0016] 3. The gate block directly slides along the mold locking wedge, the adapter device between the traditional opening and closing gate device and the oil cylinder is saved, the structure is simplified, the cost is reduced, and the opening and closing gate and the mold locking structure are more compact.

[0017] The utility model sets the gate block on the back side of the movable plate, uses the meshing of the protruding teeth and the transverse grooves to realize the reverse support of the mold locking force, the transverse grooves are arranged at equal intervals on the pull rod, the protruding teeth can mesh at different positions, and mold adjustment is realized; since the gate block is integrated, the risk of being pushed open does not exist, and the mold locking is realized in cooperation with the mold locking wedge, the wedge has a force amplification effect, the size specification of the mold locking oil cylinder can be greatly reduced, and the cost is reduced.

[0018] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0019] The drawings are part of the present application and serve to provide a further understanding of the utility model, the schematic embodiments of the utility model and the description thereof serve to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creating creative labor. In the drawings:

[0020] Figure 1 is a structural schematic diagram of one embodiment of the utility model;

[0021] Figure 2 is a schematic diagram of the opening of the gate block of one embodiment of the utility model;

[0022] Figure 3 is a closing state schematic view of the brake block of an embodiment of the utility model;

[0023] Figure 4 is a mold locking state schematic view of the brake block of an embodiment of the utility model;

[0024] Figure 5 is a transverse groove structure schematic view of another embodiment of the utility model.

[0025] In the drawings:

[0026] 1 - fixed plate;2 - movable plate;

[0027] 3 - pull rod;31 - transverse groove;

[0028] 41 - brake block;42 - wedge block;43 - opening and closing drive;44 - mold locking inclined wedge;45 - mold locking drive;

[0029] 5 - drive mechanism support.

[0030] It needs to be explained that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but illustrate the concept of the utility model to the person skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be clearly and completely described below by combining the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model, but not to limit the range of the utility model.

[0032] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “inner”, “outer” and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment one

[0034] AsFigures 1 to 4 The opening and closing brake device of the two-plate die clamping machine comprises a brake block 41, a wedge block 42, an opening and closing brake drive 43, a die clamping wedge 44, a die clamping drive 45, and a drive mechanism support 5. The die clamping machine has a movable plate 2, a fixed plate 1, a pull rod 3, a die shifting mechanism, etc. Since the die clamping machine is an existing device, the detailed structure is not described again here, and only some related components are described. The movable plate 2 is connected with the pull rod 3 in sliding mode and moves along the long axis of the pull rod 3. The fixed plate 1 is fixedly installed at one end of the pull rod 3. The movable plate 2 reciprocally moves along the long axis of the pull rod 3. After the movable plate 2 and the fixed plate 1 are clamped, the brake block 41 is engaged with the pull rod 3 to realize clamping, and then die clamping is performed. Among them:

[0035] The wedge block 42 and the die clamping drive 45 are both installed on the back outer wall of the movable plate 2. The opening and closing brake drive 43 is installed on the back outer wall of the movable plate 2 through the drive mechanism support 5, as shown in the accompanying drawings. When clamping, the movable plate 2 will be subjected to a reverse force, which will push the movable plate 2 away from the fixed plate 1. At this time, if a blocking component is arranged on the back of the movable plate 2, the movable plate 2 can be limited, and the brake block 41 is just such a component. The outer wall of the brake block 41 is provided with a plurality of protrusions. Correspondingly, the pull rod 3 is provided with a plurality of horizontal grooves 31 matched with the protrusions. The opening and closing brake drive 43 drives the brake block 41 to move along the direction perpendicular to the movement direction of the movable plate 2 to engage the protrusions with the horizontal grooves 31. Since the movement direction of the brake block 41 is perpendicular to the movement direction of the movable plate 2, when the protrusions are engaged with the horizontal grooves 31, the brake block 41 will provide a reverse force to keep the movable plate 2 and the fixed plate 1 locked.

[0036] When clamping, the brake block 41 plays a role in blocking and providing a reverse supporting force. Therefore, when die clamping, the movable plate 2 needs to keep a pressure with the top plate, that is, the movable plate 2 needs to be pressed tightly with the fixed plate 1. The opening and closing brake device of the utility model is realized through the die clamping wedge 44 and the wedge block 42. Specifically, the die clamping wedge 44 is clamped by the brake block 41 and the wedge block 42 and is in sliding connection with both. As shown in the accompanying drawings, the die clamping drive 45 drives the die clamping wedge 44 to move along the direction perpendicular to the movement direction of the movable plate 2, so that the die clamping wedge 44 is gradually wedged with the wedge block 42, and the movable plate 2 is gradually pressed and combined to be locked at the back of the movable plate 2. In combination with the accompanying drawings, Figures 2-4 The state changes are shown. When the movable plate 2 and the top plate are clamped, the brake block 41 is first moved to the position (the protrusions are engaged with the horizontal grooves 31), and then the die clamping wedge 44 is gradually moved. Since the wedge surface of the wedge and the wedge block 42 is gradually wedged, a force pushing the brake block 41 and the wedge block 42 to the left and right sides is formed, the force is gradually increased, and finally the movable plate 2 and the fixed plate 1 are die clamped.

[0037] In this example, the pull rod 3 is designed with a central slot. As shown in the attached diagram, the pull rod 3 has a long axial sliding groove in the middle. The moving plate 2 has a protrusion that extends into and slides within the sliding groove. A wedge 42 is mounted on the protrusion, and transverse grooves 31 are provided on both sides of the sliding groove. Here, the sliding groove provides a limiting groove for the protrusion. Simultaneously, the transverse grooves 31 arranged on both sides of the inner wall of the sliding groove simplifies the engagement of the teeth and the transverse grooves 31. It should also be noted that the outer wall of the gate block 41 in this example has teeth arranged in equally spaced rows, with N rows of teeth. The number of rows of transverse grooves 31 is M, where M>N. The greater number of rows of transverse grooves 31 allows the teeth to engage at different positions, thus adapting to different mold thicknesses. Example 2

[0038] The difference between this embodiment and the first embodiment described above is that the gate block 41 is cubic in shape, combined with the attached... Figure 5 As shown, protruding teeth are provided on the left, right, and top outer walls, and the tie rod 3 is provided with a U-shaped transverse groove 31. Protruding teeth are also provided on the top of the gate block to achieve three-sided meshing, which can increase the meshing contact area between the protruding teeth and the transverse groove. Under the same contact area, three-sided meshing can reduce the size of the gate block and make the structure more compact.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A two-plate die clamping machine opening and closing device, characterized by: It comprises a gate block (41), a wedge block (42), an opening and closing gate drive (43), a mold locking wedge (44), and a mold locking drive (45); The wedge block (42), the mold locking drive (45), and the opening and closing gate drive (43) are installed on the back side of the moving plate (2), the moving plate (2) is slidingly connected with the pull rod (3) and moves towards or away from the fixed plate (1) along the long axis of the pull rod (3), the outer wall of the gate block (41) is provided with a plurality of protruding teeth, the pull rod (3) is provided with a plurality of horizontal grooves (31) matching the protruding teeth, and the opening and closing gate drive (43) drives the gate block (41) to move along the direction perpendicular to the moving direction of the moving plate (2) to engage the protruding teeth with the horizontal grooves (31). The mold locking wedge (44) is clamped by the gate block (41) and the wedge block (42) and is slidingly connected with them, the mold locking drive (45) drives the mold locking wedge (44) to move along the direction perpendicular to the moving direction of the moving plate (2), so that the mold locking wedge (44) is gradually wedged with the wedge block (42), and the moving plate (2) is gradually pressed and locked on the back side of the moving plate (2).

2. The opening and closing gate device of a two-plate die assembly machine according to claim 1, characterized in that: The middle part of the pull rod (3) is provided with a long-axis sliding groove, the moving plate (2) is provided with a protruding block, the protruding block extends into the sliding groove and is slidingly connected with the sliding groove, the wedge block (42) is installed on the protruding block, and the horizontal grooves (31) are arranged on the two side walls of the sliding groove.

3. The opening and closing gate device of a two-plate die assembly machine according to claim 1, wherein: The outer wall of the gate block (41) is provided with protruding teeth arranged at equal intervals, the protruding teeth are N rows, and the number of rows of the horizontal grooves (31) is M, and M>N.

4. The opening and closing gate device of a two-plate die assembly machine according to claim 1, wherein: The mold locking drive (45) is installed on the outer wall of the back side of the moving plate (2), and the opening and closing gate drive (43) is installed on the outer wall of the back side of the moving plate (2) through the driving mechanism support (5).

5. The opening and closing device of a two-plate die assembly machine according to claim 2, wherein: The gate block (41) is in the shape of a cubic block, the left and right outer walls and the top outer wall of the gate block (41) are provided with protruding teeth, and the pull rod (3) is correspondingly provided with a horizontal groove (31) in the shape of a Chinese character.

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