CN220446974U - Mould vibration device for pouring molding - Google Patents

Abstract

The utility model relates to the technical field of casting and forming of molds, and provides a mold vibrating device for casting and forming, which solves the problem that defects exist in an obtained product due to the existence of bubbles during resin casting and forming, and specifically comprises a fixing plate, a vibrating plate and a supporting column; the support column penetrates through the through hole and is movably connected with the fixed plate; the vibrating plate is fixedly arranged at the top of the support column; two vibrating slide bars are vertically fixed on the vibrating plate, and elastic steel plates are connected to the vibrating slide bars in a sliding manner; the motor is fixedly arranged on the fixed plate, an output shaft of the motor is connected with the eccentric rotating wheel, and the eccentric rotating wheel is abutted against the elastic steel plate. The utility model can effectively eliminate bubbles in the molten resin in the die cavity. In addition, during operation, the vibration plate is vibrated up and down, the vibration amplitude of each position of the upper die is the same, the resin in the die cavity of the die can be uniformly distributed in the die cavity, and the obtained product after curing and molding has uniform texture and no hollow defect.

Description

Mould vibration device for pouring molding

Technical Field

The utility model relates to the technical field of casting and forming of molds, in particular to a mold vibrating device for casting and forming.

Background

At present, the resin molding process mainly comprises injection molding, hollow blow molding, compression molding and mold casting molding, wherein special molding processing equipment is needed for injection molding, hollow blow molding and compression molding, and a proper mold is matched for use, the operation process is complicated, and the molding equipment is generally matched only in factories or resin modification laboratories. In contrast, the casting molding operation is simple, and the cost of the used mold is low, so that the casting model is widely used. However, the casting model has a simple process, so that the manufactured product may have certain defects. For example, in the process of pouring a tensile test sample bar, bubbles are formed in the molten resin, and the bubbles cannot be discharged by themselves because of the high viscosity of the resin, so that the formed sample bar has a hollow defect due to the bubbles in the sample bar, and stress concentration occurs during stretching, so that the measured tensile strength of the resin is low. In order to solve the problem that bubbles can occur in the resin pouring molding process, the method is proposed in section 4.1.2.2 of the performance test method of the national standard GBT 2567-2008-resin casting body published in 2008, and the bubbles can be eliminated by a vibration method. However, the mold temperature is high in the casting molding process, vibration cannot be realized manually, and a mold vibration device is needed for vibration.

In chinese patent publication No. CN208374179U, there is provided a mold vibration device for casting mold, which eliminates air bubbles in the mold by vibration, thereby making the inside of the molded product uniform and free from hollow defects. In the vibrating device that this patent provided, fixed plate one end articulates at the second fixed column, and the other end passes through the first fixed column of spring coupling, and is installing the epaxial cam of motor output under this end of connecting first fixed column, and the motor drives the cam rotation, and the cam rotates the fixed plate up-and-down motion of promotion top to realize the vibrations of fixed plate and the mould of placing on the fixed plate. Although the vibration device can play a role in vibrating the mould to eliminate bubbles, one end of the fixing plate is hinged and fixed in vibration, the fixing plate vibrates around the hinge, so that the vibration amplitudes of the fixing plate and the two ends of the mould are different in vibration, namely, the resin in the mould does not uniformly vibrate, the bubbles in the resin cannot be completely eliminated in such a vibration mode, and the phenomenon of uneven texture after solidification possibly occurs due to different vibration amplitudes of the resin. Therefore, in order to completely eliminate the bubbles existing in the resin, a device capable of uniformly vibrating the resin is required.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a mould vibrating device for pouring and forming, which can eliminate bubbles existing in the resin in a mould cavity by vibrating the mould when the mould is used for pouring and forming so as to solve the problem that defects exist in the obtained product due to the existence of the bubbles when the resin is poured and formed.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:

a mould vibrating device for pouring molding comprises a fixed plate, a vibrating plate and a support column; the fixing plate is provided with a plurality of through holes, and the support column penetrates through the through holes to be movably connected with the fixing plate; the vibrating plate is fixedly arranged at the top of the support column and is parallel to the fixed plate; a buffer spring is arranged between the vibrating plate and the fixed plate; the vibrating plate is of a rectangular structure, two vibrating slide bars are vertically fixed on the lower surface of the vibrating plate, the lower part of the vibrating slide bar is suspended and is not contacted with the fixed plate, an elastic steel plate is connected between the two vibrating slide bars in a sliding manner, vibrating springs are sleeved on the two vibrating slide bars, and the vibrating springs are positioned between the vibrating plate and the elastic steel plate; a motor is fixedly arranged on the fixed plate, an output shaft of the motor is connected with an eccentric rotating wheel, and an elastic steel plate is abutted above the eccentric rotating wheel; a fixing component for fixing the die is arranged above the vibrating plate.

In the scheme, when the vibration plate is used, the die is fixed on the vibration plate through the fixing component, an eccentric rotating wheel arranged on an output shaft of a motor on the fixing plate abuts against the elastic steel plate, when the motor drives the eccentric rotating wheel to rotate, the eccentric rotating wheel performs regular circular motion by taking the output shaft of the motor as a circle center, meanwhile, the elastic steel plate abutting against the eccentric rotating wheel is pushed to vibrate in an up-down mode, when the outer edge of the eccentric rotating wheel moves to the highest point of a rotating path of the eccentric rotating wheel, the elastic steel plate is pushed to the highest position, the elastic steel plate extrudes the vibration spring along the vibration slide rod, and then the vibration plate connected through the vibration spring is driven to move upwards to the highest position; the eccentric rotating wheel continues to rotate until the outer edge of the eccentric rotating wheel moves to a position below the highest point of the rotating path, the elastic steel plate moves downwards under the action of the elastic force of the vibration spring and continuously abuts against the eccentric rotating wheel, in the process, the vibration plate is pushed to vibrate up and down under the rotation of the motor, and bubbles existing in the middle of resin in a die cavity above the vibration plate can be eliminated in the vibration process. The buffer spring is arranged between the fixed plate and the vibrating plate, so that the inertia of the vibrating plate when up and down fluctuating can be buffered, and resin in the die is prevented from splashing because of too fast vibration.

Further, the fixing plate is of a rectangular structure; the number of the through holes formed in the fixing plate is four, and the four through holes are distributed at four corners of the rectangular structure; the support column has four, and swing joint is on four through-holes of fixed plate respectively.

In this scheme, during the vibration, the support column with vibrating plate fixed connection can be in the through-hole of fixed plate activity from top to bottom, and vibrating plate and fixed plate are rectangular structure, all have the support column to support at four angles of vibrating plate, can guarantee to vibrate the upper and lower fluctuation that the in-process vibrating plate can be steady, can not take place the condition of vibration slope, can prevent that the resin in the mould from being thrown away in the vibration.

Further, a buffer spring between the vibrating plate and the fixed plate is sleeved on the support column.

In this scheme, buffer spring can cushion the vibration of vibrating plate, prevents that vibration in-process vibration is too violent, and establishes buffer spring cover on the support column, and buffer spring is spacing by the support column when buffering, guarantees that the spring can only be along the buffering in the direction of support column, prevents buffer spring under compression state abrupt bending release elasticity.

Further, the elastic steel plate is arc-shaped, and two arc-shaped ends are respectively connected with the two vibrating slide bars in a sliding manner.

In this scheme, the elastic steel plate is circular-arc, and has elasticity, under the promotion of eccentric runner, the elastic steel plate can change the rotation of eccentric runner into vibration from top to bottom through self elastic bending, can cushion mechanical type's up-and-down motion simultaneously, avoids the direction of motion to be by upwards or down to down or up the time speed too fast.

Further, the fixed assembly comprises a baffle plate and a movable plate; the two baffles are respectively fixed at two ends of the vibrating plate, and at least one guide rail is arranged between the two baffles; the movable plates are two and are connected with the movable plates in a sliding way through the guide rails; compression springs are arranged between the adjacent baffle plates and the movable plates.

In the scheme, when the mould is placed, the movable plates are pulled away towards two sides along the guide rails, the mould is placed between the movable plates, and the mould is extruded and fixed on the vibrating plate from two sides by the movable plates under the action of the elasticity of the compression springs; the elasticity of the compression spring has buffering property, and synchronous vibration can be carried out when the die vibrates, so that the force of the movable plate for fixing the die cannot be loosened, and the die is ensured to be fixed more firmly.

Further, the two guide rails are arranged and are fixedly connected with the two side ends of the baffle plate in parallel.

In this scheme, two guide rails parallel arrangement have guaranteed that the fly leaf is parallel with the mould with the contact surface of mould when moving along the guide rail for can complete contact between fly leaf and the mould.

Further, a mounting frame is fixedly arranged below the fixing plate. The part of the lower end of the support column penetrating out of the through hole of the fixing plate stretches into the cavity of the mounting frame.

In this scheme, vibration board and the support column of fixed connection are vibrating from top to bottom during the vibration, and the support column can be in the through-hole of fixed plate upper and lower activity, and the fixed plate is the fretwork in the mounting bracket upper and lower side, and the space of fretwork can supply the support column to move from top to bottom.

Further, the lowermost end of the support column is provided with a stop block for preventing the support column from sliding out of the through hole of the fixing plate.

The beneficial effects of the utility model are as follows:

according to the utility model, two vibrating slide bars are fixedly connected below the geometric center of the vibrating plate, an elastic steel plate is connected between the two vibrating slide bars, the motor drives the eccentric rotating wheel to rotate, the eccentric rotating wheel drives the elastic steel plate to vibrate up and down, the vibrating plate is driven to vibrate integrally, and then the die above the fixed plate is driven to vibrate, so that bubbles in molten resin in the die can be effectively eliminated. In addition, during operation, the vibration plate is vibrated up and down, the vibration amplitude of each position of the upper die is the same, the resin in the die cavity of the die can be uniformly distributed in the die cavity, and the obtained product after curing and molding has uniform texture and no hollow defect.

The movable plate in the fixed component can move left and right and is applicable to pouring molds with different sizes.

Drawings

FIG. 1 is a schematic view of the overall structure of a mold vibration device for casting molding;

FIG. 2 is a schematic view of the internal structure of a mold vibration device for casting;

fig. 3 is a schematic view of the motor and eccentric wheel structure.

Reference numerals: 1. a fixing plate; 2. a vibration plate; 3. a support column; 31. a stop block; 4. a buffer spring; 5. vibrating the slide bar; 6. an elastic steel plate; 7. a vibration spring; 8. a motor; 9. an eccentric wheel; 10. a baffle; 11. a movable plate; 12. a compression spring; 13. a guide rail; 14. and (5) mounting a frame.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples. The following description of the embodiments of the present utility model is provided to facilitate understanding of the present utility model by those skilled in the art, but it should be understood that the present utility model is not limited to the scope of the embodiments, and all the utility models which make use of the inventive concept are protected by the spirit and scope of the present utility model as defined and defined in the appended claims to those skilled in the art.

As shown in fig. 1 to 3, the present embodiment provides a mold vibration device for casting molding, which is used for eliminating bubbles existing in a resin by vibrating a mold when resin casting molding is performed, so that the internal texture of a manufactured stretch spline is uniform and defect-free; the method specifically comprises the following steps: a fixed plate 1, a vibrating plate 2 and a support column 3; the fixing plate 1 is provided with a plurality of through holes, the support columns 3 penetrate through the through holes and are movably connected with the fixing plate 1, and the support columns can move up and down in the through holes of the fixing plate 1; the vibrating plate 2 is fixedly arranged on the top of the support column 3 and is parallel to the fixed plate 1, and the vibrating plate 2 and the support column 3 form a whole capable of moving up and down; a buffer spring 4 is arranged between the vibrating plate 2 and the fixed plate 1;

the vibrating plate 2 is of a rectangular structure, two vibrating slide bars 5 are vertically fixed on the lower surface of the vibrating plate 2, the lower parts of the vibrating slide bars 5 are suspended and are not in contact with the fixed plate 1, an elastic steel plate 6 is connected between the two vibrating slide bars 5 in a sliding manner, vibrating springs 7 are sleeved on the two vibrating slide bars 5, and the vibrating springs 7 are positioned between the vibrating plate 2 and the elastic steel plate 6; the elastic steel plate 6 can move up and down along the vibrating slide bar 5, the vibrating spring 7 is extruded when the elastic steel plate moves up, the vibrating spring 7 pushes the vibrating plate 2 above and the vibrating slide bar 5 connected with the fixed plate 2 to move up, and the vibrating plate is opposite when the elastic steel plate moves down; the motor 8 is fixedly arranged on the fixed plate 1, an output shaft of the motor is connected with the eccentric rotating wheel 9, and the connection position of the eccentric rotating wheel 9 and the output shaft of the motor is not positioned at the circle center of the eccentric rotating wheel 9, so that the eccentric rotating wheel 9 performs circular motion taking the output shaft of the motor as the circle center when rotating; the right upper part of the eccentric rotating wheel 9 is abutted against the elastic steel plate 6; when the eccentric rotating wheel 9 rotates, the elastic steel plate 6 abutting against the eccentric rotating wheel is pushed to vibrate in an up-and-down mode, the elastic steel plate 6 moves upwards to press the vibration spring 7, and the vibration spring 7 transmits the vibration to the vibration plate 2; a fixing component for fixing the mould is arranged above the vibrating plate 2, and before the mould is used, the mould can be fixed on the vibrating plate 2 through the fixing component.

The fixing plate 1 is of a rectangular structure; the number of the through holes formed in the fixing plate 1 is four, and the four through holes are distributed at four corners of the rectangular structure; the support column 3 has four, respectively corresponds four through-holes that pass on the fixed plate 1. During vibration, the support column 3 fixedly connected with the vibration plate 2 can move up and down in the through hole of the fixed plate 1, the vibration plate 2 and the fixed plate 1 are of rectangular structures, the support column 3 is arranged at four corners of the vibration plate 2, stable up-and-down fluctuation vibration of the vibration plate 2 in the vibration process can be ensured, the condition of vibration inclination cannot occur, and resin in the mold can be prevented from being thrown out in the vibration.

The shape of the vibration plate 2 and the shape of the fixing plate 1 can be other shapes, so long as two vibration slide bars 5 are arranged at the geometric center position of the vibration plate, the vibration plate can vibrate up and down stably, and the shape of the vibration plate 2 and the shape of the fixing plate 1 can be circular in another embodiment.

A buffer spring 4 between the vibrating plate 2 and the fixed plate 1 is sleeved on the support column 3. The buffer spring 4 can buffer the vibration of the vibration plate 2, so that the vibration is prevented from being too violent in the vibration process, the buffer spring 4 is sleeved on the support column 3, the buffer spring 4 is limited by the support column 3 while buffering, the buffer spring 4 is guaranteed to deform and buffer only along the direction of the support column 3, and the buffer spring 4 is prevented from being bent suddenly under the compression state to release the elasticity.

The elastic steel plate 6 is arc-shaped, and two arc-shaped ends are respectively connected with the two vibrating slide bars 5 in a sliding manner. The elastic steel plate is an elastic arc steel plate, the material of the elastic steel plate is preferably spring steel with the brand number of S60m, the elastic steel plate 6 can convert the rotation of the eccentric rotating wheel 9 into up-and-down vibration through elastic bending of the elastic steel plate under the pushing of the eccentric rotating wheel 9, and meanwhile, the elastic steel plate can buffer mechanical up-and-down motion, so that the speed is too high when the motion direction is changed from up or down to down or up.

The fixed assembly comprises a baffle 10 and a movable plate 11; the two baffles 10 are respectively and fixedly connected to the two ends of the vibrating plate 2, and a guide rail 13 is arranged between the two baffles 10; the movable plate 11 is provided with two movable plates, and the two movable plates pass through the guide rail 13 and are connected with the guide rail in a sliding way; a compression spring 12 is arranged between the adjacent baffle plate 10 and the movable plate 11. When the mould is placed, the movable plates 11 are pulled away towards two sides along the guide rails 13, the mould is placed between the movable plates 11, and the mould is extruded and fixed on the vibrating plate 2 from two sides by the movable plates 11 under the elastic force of the compression springs 12; the elasticity of the compression spring 12 has buffering property, and synchronous vibration can be carried out when the mould vibrates, so that the force of the movable plate for fixing the mould cannot be loosened, and the fact that the mould is fixed in vibration is ensured to be firmer.

The two guide rails 13 are arranged, and the two guide rails 13 are mutually parallel and fixedly connected to the two side ends of the baffle 10. The two guide rails 13 are arranged in parallel, so that the contact surface of the movable plate 11 and the die is parallel to the die when the movable plate 11 moves along the guide rails 13, and the movable plate 11 and the die can be completely contacted.

A mounting rack 14 is fixedly arranged below the fixing plate 1. The part of the lower end of the support column 3 penetrating out of the through hole of the fixing plate 1 stretches into the cavity of the mounting frame 14. When in vibration, the vibrating plate and the support column 3 fixedly connected with the vibrating plate vibrate up and down, the support column can move up and down in the through hole of the fixing plate, the fixing plate 1 is arranged behind and below the mounting frame 14 and is hollow, and the hollow space can be used for the lower end of the support column 3 to move up and down. In this embodiment, to enhance the support stability of the mounting rack 14, the outer shape is designed to be a conical structure with a large bottom and a small top.

Alternatively, the mounting frame can be replaced by four posts, and the lower parts of the posts are fixedly connected with the ground through grounding bolts.

The support column 3 is equipped with the dog 31 that prevents support column 3 from sliding out from the through-hole of fixed plate 1 at the lower extreme, and the dog 31 can avoid vibrating plate and support column upward movement to break away from fixed plate 1 in the vibration.

The working principle of the embodiment is as follows:

when the mould is placed, the movable plates 11 are pulled away towards the two sides along the guide rails, the mould is placed between the movable plates 11, the release elasticity of the compression springs 12 gives the movable plates 11, the movable plates 11 are closed from the two sides to the middle, and the mould is extruded and fixed on the vibrating plate 2 by the movable plates 11 at the two sides;

in the vibration process, the motor 8 drives the eccentric rotating wheel 9 to rotate, the edge of the eccentric rotating wheel 9 is fluctuated up and down when rotating, the elastic steel plate 6 abutting against the eccentric rotating wheel is driven to move up and down along the vibration slide rod 5, and the elastic steel plate 6 extrudes the vibration spring 7 along the vibration slide rod 5 when moving upwards, so that the vibration plate 2 connected through the vibration spring 7 is driven to move upwards to the highest position; when the elastic steel plate 6 moves downwards, the elastic steel plate 6 moves downwards under the action of the elasticity of the vibration spring 7, so that the elastic steel plate 6 continuously abuts against the eccentric rotating wheel 9; in the process, the vibration plate 2 is pushed to vibrate up and down under the rotation of the motor 8, and bubbles existing in the middle of the resin in the die cavity above the vibration plate 2 can be eliminated in the vibration process. The buffer spring is arranged between the fixed plate 1 and the vibrating plate 2, so that the inertia of the vibrating plate when up and down fluctuating can be buffered, and resin in the mould is prevented from splashing because of too fast vibration.

Those of ordinary skill in the art will recognize that the embodiments herein are intended to assist the reader in understanding the principles of the utility model and should be understood that the scope of the utility model is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit of the utility model, and such modifications and combinations are still within the scope of the utility model.

Claims (9)

1. A mould vibrating device for pouring shaping, its characterized in that: comprises a fixed plate (1), a vibrating plate (2) and a support column (3); a plurality of through holes are formed in the fixed plate (1), and the support columns (3) penetrate through the through holes and are movably connected with the fixed plate (1); the vibrating plate (2) is fixedly arranged at the top of the supporting column (3) and is parallel to the fixed plate (1); a buffer spring (4) is arranged between the vibrating plate (2) and the fixed plate (1);

the vibrating plate (2) is of a rectangular structure, two vibrating slide bars (5) are vertically fixed on the lower surface of the vibrating plate (2), the lower parts of the vibrating slide bars (5) are suspended and are not in contact with the fixed plate (1), an elastic steel plate (6) is connected between the two vibrating slide bars (5) in a sliding mode, vibrating springs (7) are sleeved on the two vibrating slide bars (5), and the vibrating springs (7) are located between the vibrating plate (2) and the elastic steel plate (6);

a motor (8) is fixedly arranged on the fixed plate (1), an output shaft of the motor (8) is connected with an eccentric rotating wheel (9), and the right upper part of the eccentric rotating wheel (9) is abutted against the elastic steel plate (6);

and a fixing component for fixing the die is arranged above the vibrating plate (2).

2. The mold vibration device for casting molding according to claim 1, wherein: the fixing plate (1) is of a rectangular structure; the number of through holes formed in the fixing plate (1) is four, and the four through holes are distributed on four corners of the rectangular structure.

3. The mold vibration device for casting molding according to claim 2, wherein: the support columns (3) are four, and correspondingly penetrate through the four through holes in the fixing plate (1) respectively.

4. The mold vibration device for casting molding according to claim 1, wherein: the buffer spring (4) between the vibrating plate (2) and the fixed plate (1) is sleeved on the support column (3).

5. The mold vibration device for casting molding according to claim 1, wherein: the elastic steel plate (6) is arc-shaped, and two arc-shaped ends are respectively connected with the two vibrating slide bars (5) in a sliding mode.

6. The mold vibration device for casting molding according to claim 1, wherein: the fixed component comprises a baffle (10) and a movable plate (11); the two baffles (10) are respectively fixed at two ends of the vibrating plate (2), and at least one guide rail (13) is arranged between the two baffles (10);

the movable plates (11) are two and pass through the guide rail (13) to be connected with the guide rail (13) in a sliding way; a compression spring (12) is arranged between the adjacent baffle plates (10) and the movable plate (11).

7. The mold vibration device for casting molding according to claim 6, wherein: the two guide rails (13) are arranged, and the two guide rails (13) are mutually parallel and fixed at the two edge ends of the baffle (10).

8. The mold vibration device for casting molding according to claim 1, wherein: a mounting rack (14) is fixedly arranged below the fixed plate (1);

the lower end of the support column (3) penetrates out of the through hole of the fixing plate (1) and stretches into the cavity of the mounting frame (14).

9. The mold vibration device for casting molding according to claim 8, wherein: the bottommost end of the support column (3) is provided with a stop block (31) for preventing the support column (3) from sliding out of the through hole of the fixed plate (1).