Pressing plate adjusting mechanism adaptive to molds with different heights

Abstract

The utility model relates to the technical field of pressing plate adjusting mechanisms, in particular to a pressing plate adjusting mechanism adaptive to molds with different heights, which comprises a main machine body, guide rods are vertically arranged in the centers of two sides of the main machine body, and an upper base capable of moving up and down is arranged between the two guide rods. A synchronous driving mechanism is arranged at the bottom of the upper base, a pressing plate body is arranged at the bottom of the synchronous driving mechanism, a top plate is fixed to the top of the main machine body, and two adjusting assemblies capable of enabling the upper base to move up and down are arranged between the top plate and the upper base; the two sides of the main machine body are further provided with laser range finders for detecting the moving distance of the two ends of the upper base. The first connecting rod and the second connecting rod are made to move through the second hydraulic cylinder, so that the upper base moves up and down, and the problem that a traditional device is prone to being stuck due to the fact that the height is adjusted through threads is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressing plate adjusting mechanism, specifically to a kind of pressing plate adjusting mechanism of adaptation different height mould. BACKGROUND

[0002] As the key equipment in the process of mold research, detection and production, mold closing machine is widely used in the field of automobile cover mold, 3C electronic precision mold, medical consumable mold, etc., and its core function is to realize the closed positioning, research, debugging and consistency detection of mold by applying controllable locking force to the mold, which directly affects the molding precision of mold and the yield of subsequent products. The mold is generally installed on the mold closing machine, and the mold is closed by the pressing of the pressing plate. However, the pressing plate of the existing mold closing machine cannot be adjusted conveniently according to the height of the mold.

[0003] Chinese patent CN220499857U discloses a mold closing machine, which comprises a base, a lower pressing plate and an upper pressing plate. The upper pressing plate is in sliding cooperation with the base, and the upper pressing plate and the base are connected by a crank connecting rod upper mold driving assembly. The lower pressing plate is located below the upper pressing plate. The patent has an upper pressing plate height adjusting mechanism, which comprises a motor, a chain and four first sprockets. The first sprockets correspond to the first guide rails one by one. The motor is installed on the upper base. The middle part of the first sprocket is in threaded cooperation with the threaded segment. The second sprocket of the motor output end and the first sprocket are matched with the chain. The first sprocket is rotationally connected with the upper base. When the mold of different heights needs to be closed, the motor drives the chain to rotate the first sprocket relative to the threaded segment to adjust the height of the upper base and the upper pressing plate.

[0004] The prior art rotates the sprocket by the motor to make the four threaded segments rotate synchronously. However, this method needs the four threaded segments to rotate at the same speed, but there will be some errors in the manufacture or installation of the threaded segments, which will cause the four threaded segments and the upper base to be easily stuck, making the upper base unable to move up and down. In addition, the threaded segment needs to support the upper base when the mold closing machine is working, and the thread on the threaded segment needs to bear a large force, which will easily cause the thread to be damaged, causing the threaded segment and the upper base to be stuck, making the upper base unable to move. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pressing plate adjusting mechanism for adapting to different height molds. The first connecting rod and the second connecting rod are moved by the second hydraulic cylinder, so that the upper base moves up and down, solving the problem of easy sticking of the traditional device when adjusting the height by using threads.

[0006] In order to solve the prior art problems, the utility model provides a kind of pressing plate adjusting mechanism of different height mould adaptation, including main body, the center position of two sides of main body is vertically provided with guide rod, and the upper base of being able to move up and down is arranged between two guide rods, and the bottom of upper base is provided with synchronous drive mechanism, and the bottom of synchronous drive mechanism is provided with pressing plate body, the top of main body is fixed with top plate, and two groups of adjusting assembly that can make upper base move up and down are provided between top plate and upper base, the both sides of main body are also provided with laser range finder of detecting the movement distance of both ends of upper base.

[0007] Preferably, two adjusting assemblies are symmetrically arranged on the both sides of the top of the upper base, the adjusting assembly comprises a first connecting rod rotatably arranged at the bottom of the top plate and a second connecting rod rotatably arranged at the top of the upper base, and the ends of the first connecting rod and the second connecting rod are hingedly connected.

[0008] Preferably, the adjusting assembly further comprises a second hydraulic cylinder hingedly connected at the bottom of the top plate, and the output end of the second hydraulic cylinder is connected with a hinged piece, and the hinged piece is movably connected with the hinged connection of the first connecting rod and the second connecting rod.

[0009] Preferably, the both sides of the top of the upper base are further provided with a brake assembly for stabilizing the upper base.

[0010] Preferably, the brake assembly comprises a slide rail mounted on the both sides of the top of the upper base and arranged along the width direction thereof, and two brake blocks capable of contacting the frame of the main body are slidably arranged on the slide rail.

[0011] Preferably, the brake assembly further comprises a third hydraulic cylinder mounted on the top of the upper base, the third hydraulic cylinder is a double-head hydraulic cylinder, and the two output ends of the third hydraulic cylinder are respectively connected with the two brake blocks.

[0012] Preferably, the bottom of the main body is further provided with a bottom workbench for supporting the mould.

[0013] Preferably, the center position of the top of the upper base is fixed with a first hydraulic cylinder, and the output end of the first hydraulic cylinder drives the pressing plate body to move up and down through the synchronous drive mechanism.

[0014] The utility model discloses a beneficial effect compared with prior art is: the application is through setting up the adjusting assembly to replace traditional screw transmission structure, thereby solve the problem of traditional screw adjusting mode easy to jam. Specifically, the core structure of adjusting assembly is: between the top plate and upper base, the rotatable first connecting rod and second connecting rod are arranged, and the end of first connecting rod and second connecting rod forms articulated cooperation;At the same time, the articulated piece of second hydraulic cylinder output end and the articulated end of first connecting rod, second connecting rod constitute common articulated structure. Through the telescopic drive of second hydraulic cylinder, can drive first connecting rod and second connecting rod relative rotation around articulated point, utilize the motion characteristic of connecting rod mechanism to realize the up-down translation of upper base, and then drive the press plate body to complete height adjustment, to adapt to different height specifications of mould, greatly improve the equipment adaptation ability of diversified mould. To ensure that the both ends of upper base move the same distance during the adjustment process, avoid the equipment operation instability caused by the displacement deviation of both ends, configure laser range finder on the main body. The laser range finder can monitor the displacement of both ends of upper base in real time, and realizes the dynamic balance of both ends movement through feedback control mechanism, effectively guarantees the adjustment accuracy. Considering that the mold closer will generate a large force when closing the mold, the force may interfere with the stable operation of the second hydraulic cylinder, causing the position of the upper base to shift, the application additionally provides a brake assembly to enhance the position stability of the upper base. The specific operation logic is: when the upper base is adjusted to the target height by the adjusting assembly, the third hydraulic cylinder in the brake assembly is started, driving the brake block to move along the preset trajectory until the brake block forms close contact with the frame on the main body, and the friction force generated by the contact and the rigid constraint jointly act to reliably lock the upper base in the current position, ensuring that it always remains in a stable state during high-strength mold closing operation, effectively improving the safety and reliability of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a first three-dimensional structure schematic view of the press plate adjusting mechanism of the utility model for adapting different height molds;

[0016] Figure 2 is a second three-dimensional structure schematic view of the press plate adjusting mechanism of the utility model for adapting different height molds;

[0017] Figure 3 is a third three-dimensional structure schematic view of the press plate adjusting mechanism of the utility model for adapting different height molds;

[0018] Figure 4 is a fourth three-dimensional structure schematic view of the press plate adjusting mechanism of the utility model for adapting different height molds;

[0019] Figure 5 is a brake assembly three-dimensional structure schematic view of the press plate adjusting mechanism of the utility model for adapting different height molds.

[0020] The labels in the figure are: 1, bottom workbench; 2, pressing plate body; 3, synchronous driving mechanism; 4, upper base; 5, first hydraulic cylinder; 6, main body; 7, guide rod; 8, top plate; 9, adjusting assembly; 91, first connecting rod; 92, second connecting rod; 93, second hydraulic cylinder; 931, hinged piece; 10, brake assembly; 1001, brake block; 1002, third hydraulic cylinder; 1003, sliding rail; 11, laser range finder. DETAILED DESCRIPTION

[0021] In order to further understand the characteristics, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0022] Referring to Figures 1-5 As shown in the figure, the utility model provides a pressing plate adjusting mechanism suitable for molds of different heights, which comprises a main body 6, and the bottom of the main body 6 is further provided with a bottom workbench 1 for supporting the mold. The bottom workbench 1 serves as a direct bearing platform for the mold, and its core function is to provide a flat and stable placement reference for the mold to prevent the mold from shifting or shaking during subsequent adjustment or compaction. Vertical guide rods 7 are arranged at the center positions of the two sides of the main body 6, and an upper base 4 capable of moving up and down is arranged between the two guide rods 7. The guide rods 7 and the two sides of the upper base 4 form a sliding fit, and its core function is to limit the movement direction of the upper base 4, allowing only the upper base 4 to move up and down in the vertical direction, preventing horizontal deviation or tilting, and ensuring that the upper base 4 always maintains a straight trajectory when moving the subsequent components. The bottom of the upper base 4 is provided with a synchronous driving mechanism 3 (which is prior art, and the specific reference can be made to the patent CN220499857U, and the structure is the same), and the bottom of the synchronous driving mechanism 3 is provided with a pressing plate body 2. The center position of the top of the upper base 4 is fixed with a first hydraulic cylinder 5, and the output end of the first hydraulic cylinder 5 drives the pressing plate body 2 to move up and down through the synchronous driving mechanism 3. The top of the main body 6 is fixed with a top plate 8, and two groups of adjusting assemblies 9 capable of moving the upper base 4 up and down are arranged between the top plate 8 and the upper base 4. The two sides of the main body 6 are further provided with a laser range finder 11 for detecting the movement distance of the two ends of the upper base 4. The function of the laser range finder 11 is to detect the movement distance of the two ends of the upper base 4 in real time and feed back data. When the adjusting assembly 9 drives the upper base 4 to move, if there is a height deviation at the two ends, the laser range finder 11 can timely capture this difference, providing data basis for the fine adjustment of the adjusting assembly 9, and avoiding the tilting of the upper base 4.

[0023] Two adjusting assemblies 9 are symmetrically arranged at two sides of the top of the upper base 4, the adjusting assembly 9 comprises a first connecting rod 91 rotatably arranged at the bottom of the top plate 8 and a second connecting rod 92 rotatably arranged at the top of the upper base 4, and the ends of the first connecting rod 91 and the second connecting rod 92 are hingedly connected. The adjusting assembly 9 further comprises a second hydraulic cylinder 93 hingedly connected at the bottom of the top plate 8, and the output end of the second hydraulic cylinder 93 is connected with a hinged piece 931, and the hinged piece 931 is movably connected with the hinged connection positions of the first connecting rod 91 and the second connecting rod 92.

[0024] The second hydraulic cylinders 93 of the two adjusting assemblies 9 are synchronously started, the piston rods of the second hydraulic cylinders 93 are outwardly extended, the first connecting rod 91 and the second connecting rod 92 are pushed to move through the hinged piece 931 at the output end, and then the upper base 4 is pushed to vertically move up and down along the two guide rods 7.

[0025] The two sides of the top of the upper base 4 are further provided with a brake assembly 10 for keeping the upper base 4 stable. The brake assembly 10 comprises a slide rail 1003 mounted at the two sides of the top of the upper base 4 and arranged along the width direction thereof, and two brake blocks 1001 capable of contacting the frame of the main body 6 are slidably arranged on the slide rail 1003. The brake assembly 10 further comprises a third hydraulic cylinder 1002 mounted at the top of the upper base 4, the third hydraulic cylinder 1002 is a double-head hydraulic cylinder, and the two output ends of the third hydraulic cylinder 1002 are respectively connected with the two brake blocks 1001.

[0026] When the upper base 4 moves to a suitable position, the third hydraulic cylinder 1002 at the two sides of the top of the upper base 4 is started, the double-head piston rods of the third hydraulic cylinder 1002 are synchronously extended, the two brake blocks 1001 are pushed to slide outward along the slide rail 1003 until the brake blocks 1001 are in close contact with the frame of the main body 6. At this time, the frictional force between the brake blocks 1001 and the frame "locks" the upper base 4, preventing it from moving up and down due to force in the subsequent mold closing process.

[0027] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A press plate adjustment mechanism for adapting different height molds, characterized by: The utility model provides a kind of mould pressing machine, including main body (6), the center position of both sides of the main body (6) is vertically provided with guide rod (7), and the upper base (4) capable of moving up and down is provided between two guide rods (7), and the bottom of upper base (4) is provided with synchronous drive mechanism (3), and the bottom of synchronous drive mechanism (3) is provided with pressing plate body (2), the top of the main body (6) is fixed with top plate (8), and two groups of adjusting assembly (9) capable of moving upper base (4) up and down are provided between top plate (8) and upper base (4), the both sides of the main body (6) are also provided with laser range finder (11) of detecting the moving distance of both ends of upper base (4).

2. The press plate adjustment mechanism for molds of different heights according to claim 1, characterized in that: Two adjusting assemblies (9) are respectively symmetrically arranged on the both sides of the top of the upper base (4), the adjusting assembly (9) includes the first connecting rod (91) rotatably arranged on the bottom of the top plate (8) and the second connecting rod (92) rotatably arranged on the top of the upper base (4), and the ends of the first connecting rod (91) and the second connecting rod (92) are hingedly connected.

3. The platen adjustment mechanism for accommodating different height molds according to claim 2, wherein: The adjusting assembly (9) further includes the second hydraulic cylinder (93) hingedly connected to the bottom of the top plate (8), and the output end of the second hydraulic cylinder (93) is connected with the hinged piece (931), and the hinged piece (931) is movably connected with the hinged connection of the first connecting rod (91) and the second connecting rod (92).

4. The press plate adjustment mechanism for molds of different heights according to claim 1, characterized in that: The both sides of the top of the upper base (4) are further provided with the brake assembly (10) for keeping the upper base (4) stable.

5. The platen adjustment mechanism for accommodating different height molds according to claim 4, wherein: The brake assembly (10) includes the slide rail (1003) mounted on the both sides of the top of the upper base (4) and arranged along the width direction thereof, and the two brake blocks (1001) capable of contacting the frame of the main body (6) are slidably arranged on the slide rail (1003).

6. The platen adjustment mechanism for accommodating different height molds according to claim 5, wherein: The brake assembly (10) further includes the third hydraulic cylinder (1002) mounted on the top of the upper base (4), the third hydraulic cylinder (1002) is a double-end hydraulic cylinder, and the two output ends of the third hydraulic cylinder (1002) are respectively connected with the two brake blocks (1001).

7. The press plate adjustment mechanism for molds of different heights according to claim 1, characterized in that; The bottom of the main body (6) is further provided with the bottom workbench (1) for supporting the mould.

8. The platen adjustment mechanism for accommodating different height molds according to claim 1, wherein: The first hydraulic cylinder (5) is fixed on the top of the upper base (4), and the output end of the first hydraulic cylinder (5) drives the pressing plate body (2) to move up and down through the synchronous drive mechanism (3).

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