Opening and closing device of blowing mold for automobile parts

Abstract

The utility model relates to the technical field of blow molding processing of automobile parts, and discloses an opening and closing device of an automobile part blow molding mold, which comprises a base, and an auxiliary component is positioned on the upper surface of the base. By starting the driving motor, the driving motor drives the driving wheel to rotate, the driving wheel transmits power to the driven wheel through the belt, then the bidirectional screw is driven to rotate around the axis, the directions of threads at the two ends of the bidirectional screw are opposite, and the two first sliding blocks are pushed to synchronously and oppositely move in the axis direction of the bidirectional screw during rotation; the first sliding block drives the two molds to get close to the middle through the bottom plate and the connecting plate, when the two molds make contact, the driving motor stops rotating, the molds are kept in a closed state under the self-locking characteristic of the two-way screw rod, a closed cavity is formed, and through rigid mechanical transmission, response delay and pressure fluctuation of a hydraulic system can be eliminated, it is ensured that mold closing actions are strictly synchronous, and production efficiency is improved. And therefore, the die deformation is avoided, and the problems of untight die assembly and flash are further aggravated.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile parts blow molding processing technical field, concretely is a kind of automobile parts blow molding mold's opening and closing device. BACKGROUND

[0002] Blow molding processing is a kind of widely used in plastic product manufacturing forming process, mainly used for producing hollow plastic products, in the field of automobile manufacturing, blow molding processing is used to produce a variety of lightweight, durable plastic parts.

[0003] Two existing automobile parts blow molding molds are closed by two hydraulic cylinders pushing corresponding molds, when mold is closed, it can be caused by hydraulic system pressure fluctuation, oil leakage or valve response difference, leading to different step of action, and different step of hydraulic cylinder can make one side of mold bear larger pressure, while the other side pressure is insufficient, leading to uneven stress of mold, and long-term uneven stress can lead to mold deformation, further exacerbate the problem of not tight and flash. UTILITY MODEL CONTENT

[0004] The utility model aims at a kind of automobile parts blow molding mold's opening and closing device, solve the problem that existing automobile parts blow molding mold is caused by hydraulic system pressure fluctuation, oil leakage or valve response difference of hydraulic cylinder, leading to different step of action of closing mold.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a kind of automobile parts blow molding mold's opening and closing device, including base, the upper surface of base is equipped with two connecting blocks, two connecting blocks are rotatably connected with bidirectional screw, one end of bidirectional screw penetrates one of connecting blocks and is equipped with driven wheel, one end of base is provided with driving motor, the output of driving motor is equipped with driving wheel, and driving wheel is connected with driven wheel by belt, the outer surface of bidirectional screw is slidably connected with two first sliding blocks, the upper surface of two first sliding blocks is equipped with bottom plate, the upper surface of two bottom plates is equipped with connecting plate, the lower surface of two bottom plates is equipped with auxiliary assembly, and auxiliary assembly is located on the upper surface of base.

[0007] Further, the auxiliary assembly includes a second sliding block, a placing groove is formed in the upper surface of the second sliding block, a cover plate is mounted on the upper end of the placing groove, a plurality of through holes are formed in the inner surface of the placing groove, a connecting piece is mounted in the through hole, a ball is mounted in the connecting piece, and the cover plate is mounted on the lower surface of the bottom plate.

[0008] Further, the upper surface of the base is also provided with a sliding rail, the second sliding block is slidably connected to the outer surface of the sliding rail, and the outer surface of the ball is in contact with the outer surface of the sliding rail.

[0009] Further, the inside of the placing groove is provided with a sponge block.

[0010] Further, one side of the second sliding block is provided with an oil inlet hole.

[0011] Further, the upper surface of the base is provided with two vertical plates, a guide rod is arranged between the two vertical plates, and the two connecting plates are slidingly connected to the outer surface of the guide rod.

[0012] The utility model has the following beneficial effects:

[0013] (1) the utility model discloses a drive motor is started to make drive motor drive driving wheel rotation, and driving wheel passes through the belt and is powered to driven wheel, and then drives the rotation of bidirectional screw around the axis, and the thread direction of the both ends of bidirectional screw is opposite, and when rotating, two first sliding blocks are synchronously moved along the axis direction of bidirectional screw, and first sliding block drives two molds to draw together to the middle through bottom plate and connecting plate, when two molds contact, drive motor stops rotating, and the mold keeps closed state under the self-locking characteristic of bidirectional screw, and forms airtight cavity, and this rigid mechanical transmission can eliminate the response delay and pressure fluctuation of hydraulic system, ensures that the mold closing action is strictly synchronous, and then avoids the deformation of mold, and further aggravates the mold closing and flash problem.

[0014] (2) the lower surface of the bottom plate of the utility model is provided with an auxiliary assembly, wherein the second sliding block is in contact with the slide rail through the ball, and slides along the slide rail, and the ball rolls on the surface of the slide rail, converts sliding friction into rolling friction, and the rolling friction between the ball and the slide rail can significantly reduce the movement resistance, reduce the load of the drive motor, improve the transmission efficiency, and prolong the service life of the drive motor and the bidirectional screw.

[0015] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the utility model Figure 1 It is the structure enlarged schematic diagram of A in the utility model;

[0019] Figure 3 Partial structure exploded view of the utility model;

[0020] Figure 4 Auxiliary assembly structure section view of the utility model;

[0021] In the drawings, the components represented by each reference numeral are listed as follows:

[0022] In the drawings: 1, base; 2, connecting block; 3, bidirectional screw; 4, driven wheel; 5, driving motor; 6, driving wheel; 7, belt; 8, first sliding block; 9, bottom plate; 10, connecting plate; 11, auxiliary assembly; 1101, second sliding block; 1102, cover plate; 1103, connecting piece; 1104, ball; 1105, sponge block; 1106, oil inlet hole; 12, slide rail; 13, vertical plate; 14, guide rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4 As shown in the figure, the utility model is a kind of opening and closing device of automobile parts blow mould, including base 1, the upper surface of base 1 is equipped with two connecting blocks 2, two connecting blocks 2 are rotatably connected with bidirectional screw 3 between two connecting blocks 2, one end of bidirectional screw 3 penetrates one of connecting block 2 and is equipped with driven wheel 4, one end of base 1 is provided with driving motor 5, the output end of driving motor 5 is equipped with driving wheel 6, driving wheel 6 is drivenly connected with driven wheel 4 by belt 7, the outer surface of bidirectional screw 3 is slidably connected with two first sliding blocks 8, the upper surface of two first sliding blocks 8 is equipped with bottom plate 9, the upper surface of two bottom plates 9 is equipped with connecting plate 10, the lower surface of two bottom plates 9 is equipped with auxiliary assembly 11, auxiliary assembly 11 is located on the upper surface of base 1;

[0025] In use, first, two molds are respectively installed on one side of two connecting plates 10, so that the two molds are opposite, then the driving motor 5 is started to drive the main gear 6 to rotate, the main gear 6 transmits power to the driven gear 4 through the belt 7, and then drives the bidirectional screw 3 to rotate around the axis, the two ends of the bidirectional screw 3 are opposite in screw direction, and when rotating, the two first sliding blocks 8 are pushed to move synchronously and oppositely along the axis direction of the bidirectional screw 3, the first sliding block 8 drives the two molds to move towards the middle through the bottom plate 9 and the connecting plate 10, when the two molds contact, the driving motor 5 stops rotating, and the molds remain closed under the self-locking characteristic of the bidirectional screw 3, forming a closed cavity, which can eliminate the response delay and pressure fluctuation of the hydraulic system, ensure that the mold closing action is strictly synchronous, and avoid mold deformation, further aggravate the mold closing and flash problems;

[0026] The auxiliary assembly 11 comprises a second sliding block 1101, the upper surface of the second sliding block 1101 is provided with a placing groove, the upper end of the placing groove is provided with a cover plate 1102, the inner surface of the placing groove is provided with a plurality of through holes, the inside of the through holes is provided with a connecting piece 1103, the inside of the connecting piece 1103 is provided with a ball 1104, and the cover plate 1102 is installed on the lower surface of the bottom plate 9;

[0027] The upper surface of the base 1 is also provided with a sliding rail 12, the second sliding block 1101 is slidingly connected to the outer surface of the sliding rail 12, and the outer surface of the ball 1104 is in contact with the outer surface of the sliding rail 12;

[0028] When the bottom plate 9 moves, the second sliding block 1101 in the auxiliary assembly 11 is in contact with the sliding rail 12 through the ball 1104 and slides along the sliding rail 12, the ball 1104 rolls on the surface of the sliding rail 12, converts sliding friction into rolling friction, and the rolling friction between the ball 1104 and the sliding rail 12 can significantly reduce the movement resistance, reduce the load of the driving motor 5, improve the transmission efficiency, and prolong the service life of the driving motor 5 and the bidirectional screw 3;

[0029] The inside of the placing groove is provided with a sponge block 1105;

[0030] One side of the second sliding block 1101 is provided with an oil inlet hole 1106;

[0031] The oil inlet hole 1106 can be used to regularly supplement lubricating oil, the sponge block 1105 adsorbs the lubricating oil and slowly releases the lubricating oil to the contact surface of the ball 1104 and the sliding rail 12 through capillary action to form a continuous oil film and reduce wear;

[0032] The upper surface of the base 1 is provided with two vertical plates 13, the two vertical plates 13 are provided with a guide rod 14 therebetween, and the two connecting plates 10 are slidingly connected to the outer surface of the guide rod 14;

[0033] The guide rod 14 is in precise sliding fit with the connecting plate 10, so as to ensure that the connecting plate 10 moves along a fixed linear track during opening and closing of the mold.

[0034] The preferred embodiments disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the description, many modifications and changes can be made. The description selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. An opening and closing device for a blow mould of an automotive component, comprising a base (1), characterised in that: The upper surface of the base (1) is provided with two connecting blocks (2), and a bidirectional screw rod (3) is rotatably connected between the two connecting blocks (2), one end of the bidirectional screw rod (3) penetrates one of the connecting blocks (2) and is provided with a driven wheel (4); One end of the base (1) is provided with a driving motor (5), and the output end of the driving motor (5) is provided with a driving wheel (6), and the driving wheel (6) is in transmission connection with the driven wheel (4) through a belt (7); The outer surface of the bidirectional screw rod (3) is slidably connected with two first sliding blocks (8), and the upper surfaces of the two first sliding blocks (8) are provided with bottom plates (9), and the upper surfaces of the two bottom plates (9) are provided with connecting plates (10); The lower surfaces of the two bottom plates (9) are provided with auxiliary assemblies (11), and the auxiliary assemblies (11) are located on the upper surface of the base (1).

2. An opening and closing device for a blow mold of an automobile part according to claim 1, characterized in that: The auxiliary assembly (11) comprises a second sliding block (1101), the upper surface of the second sliding block (1101) is provided with a placing groove, the upper end of the placing groove is provided with a cover plate (1102), a plurality of through holes are formed in the inner surface of the placing groove, a connecting piece (1103) is arranged in the through hole, a plurality of rolling balls (1104) are arranged in the connecting piece (1103), and the cover plate (1102) is arranged on the lower surface of the bottom plate (9).

3. An opening and closing device for a blow mold of an automobile part according to claim 2, wherein: The upper surface of the base (1) is also provided with a sliding rail (12), the second sliding block (1101) is slidably connected to the outer surface of the sliding rail (12), and the outer surface of the rolling ball (1104) is in contact with the outer surface of the sliding rail (12).

4. An opening and closing device for a blow mold of an automobile part according to claim 2, wherein: The inside of the placing groove is provided with a sponge block (1105).

5. An opening and closing device for a blow mold of an automobile part according to claim 2, wherein: The second sliding block (1101) is provided with an oil inlet hole (1106) on one side.

6. An opening and closing device for a blow mold of an automobile part according to claim 1, wherein: The upper surface of the base (1) is provided with two vertical plates (13), and a guide rod (14) is arranged between the two vertical plates (13), and the two connecting plates (10) are slidably connected to the outer surface of the guide rod (14).

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