Material supporting driving mechanism for blow molding machine

Abstract

The utility model discloses a material supporting driving mechanism for a blow molding machine, which comprises a mounting plate, a first sliding seat and a second sliding seat, a receding groove is arranged in the middle of the mounting plate, fixing blocks positioned on two sides of the receding groove are oppositely arranged on the mounting plate, and the first sliding seat and the second sliding seat are arranged between the two fixing blocks in a left-right spaced manner. A material supporting guide column penetrating through the first sliding seat and the second sliding seat is arranged between the two fixing blocks, a first ball screw which is parallel to the material supporting guide column and drives the first sliding seat to transversely move is arranged between the two fixing blocks, and stepped holes located above the avoiding grooves are vertically formed in the first sliding seat and the second sliding seat correspondingly; and a rolling bearing is arranged in the stepped hole. Through the mode, the material supporting driving mechanism for the blow molding machine drives the air blowing system to transversely move through the first sliding seat and the second sliding seat, a material blank is supported towards the two sides, the response speed is high, and the transverse movement control precision is high.

Description

Technical Field

[0001] The utility model relates to the field of blow molding machines, in particular to a material supporting driving mechanism for blow molding machines. Background Art

[0002] Some plastic barrels have a relatively large capacity, such as 200L~220L plastic barrels. During the blow molding process, after the blank is in place, it is necessary to first expand the blank to both sides, such as using a hydraulic cylinder to push the two blowing rods to both sides, and then expand the blank.

[0003] Due to the pressure differential in the hydraulic control of the hydraulic cylinders, the two hydraulic cylinders inevitably have different speeds, making synchronization difficult. To address this issue, proportional servo valves are often used for control, but this significantly increases costs, makes subsequent maintenance and debugging very cumbersome, and only minimizes the synchronization error without truly resolving the problem. The material support response speed is also relatively slow. Furthermore, the existing hydraulic material support drive mechanism is not compatible with the new electric drive structure of the blowing system and needs to be improved. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a support driving mechanism for a blow molding machine, which can accurately drive the blowing system laterally, improve the speed of the support effect, and ensure the installation convenience of the blowing system.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a support material driving mechanism for a blow molding machine, including: a mounting plate, a first slide and a second slide, a avoidance groove is provided in the middle of the mounting plate, and fixed blocks are relatively provided on both sides of the avoidance groove, the first slide and the second slide are arranged between the two fixed blocks at intervals on the left and right and are located above the avoidance groove, a support material guide column passing through the first slide and the second slide is provided between the two fixed blocks, a first ball screw is provided between the two fixed blocks, which is parallel to the support material guide column and drives the first slide to move laterally, and a second ball screw is provided between the two fixed blocks, which is parallel to the support material guide column and drives the second slide to move laterally, and a stepped hole is vertically provided above the avoidance groove in the first slide and the second slide respectively, and a rolling bearing is provided in the stepped hole.

[0006] In a preferred embodiment of the present invention, the number of the supporting guide pillars is two, and the first slide and the second slide are respectively provided with linear bearings corresponding to the supporting guide pillars.

[0007] In a preferred embodiment of the present invention, a first nut corresponding to the first ball screw is provided in the first slide seat, and a first servo motor for driving the first ball screw to rotate is provided on the fixed block.

[0008] In a preferred embodiment of the present invention, a second nut corresponding to the second ball screw is provided in the second slide, and a second servo motor for driving the second ball screw to rotate is provided on the fixed block.

[0009] In a preferred embodiment of the present invention, the first slide seat and the second slide seat are respectively provided with bearing covers located above the rolling bearings.

[0010] In a preferred embodiment of the present invention, both ends of the fixing block are respectively provided with push rods extending upward.

[0011] In a preferred embodiment of the present invention, the fixing block is provided with a socket corresponding to the push rod, the lower part of the push rod is arranged in the socket, a keyway extending axially is provided inwardly on one side of the push rod, and a fastening screw extending into the keyway is provided on one side of the fixing block.

[0012] In a preferred embodiment of the present invention, a top wheel is provided on the top of the push rod.

[0013] In a preferred embodiment of the present invention, the avoidance groove is a rectangular groove, the fixing blocks are located on both sides of the avoidance groove in the width direction, and the supporting material guide pillars extend horizontally along the length direction of the avoidance groove.

[0014] The beneficial effects of the present invention are as follows: the present invention points out a material supporting drive mechanism for a blow molding machine, which can install the blowing system on the first slide and the second slide respectively, and the blowing system is driven to move laterally by the first slide and the second slide to support the blank to both sides, which is convenient for subsequent blow molding, and the material supporting response speed is fast, the lateral movement control accuracy is high, and the debugging and maintenance are convenient. Moreover, the avoidance groove can avoid the bottom structure of the blowing system, which is conducive to the rotational drive of the blowing system by the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1 This is a structural diagram of a preferred embodiment of a support material driving mechanism for a blow molding machine according to the utility model;

[0017] Figure 2 yes Figure 1 A top view of

[0018] Figure 3 yes Figure 1 Stereoscopic image. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-3 , the embodiments of the present utility model include:

[0021] like Figure 1 The blow molding machine support material driving mechanism shown includes: a mounting plate 31, a first slide 41 and a second slide 42, as shown in FIG. Figure 2 As shown, an avoidance groove 39 is provided in the middle of the mounting plate 1. In this embodiment, the avoidance groove 39 is a rectangular groove, which is beneficial to improving the travel of the supporting material.

[0022] Mounting plate 31 is provided with fixing blocks 32 positioned opposite each other on either side of the avoidance groove 39. These fixing blocks 32 can be secured to mounting plate 31 with screws, ensuring structural stability. In this embodiment, fixing blocks 32 are positioned on either side of the avoidance groove 39 in the width direction, ensuring that the spacing between the two fixing blocks 32 is no less than the length of the avoidance groove 39.

[0023] The first slide 41 and the second slide 42 are arranged between the two fixed blocks 32 at intervals on the left and right and are located above the avoidance groove 39. A material support guide column 35 is provided between the two fixed blocks 32 and passes through the first slide 41 and the second slide 42 to guide the lateral movement of the first slide 41 and the second slide 42.

[0024] In this embodiment, there are two support guide pins 35. Linear bearings 45 corresponding to the support guide pins 35 are provided in the first and second slides 41, 42, respectively. This reduces friction and ensures smooth lateral movement of the first and second slides 41, 42. The support guide pins 35 extend horizontally along the length of the avoidance groove 39, allowing the first and second slides 41, 42 to move laterally along the length of the avoidance groove 39, ensuring a sufficient support stroke for the blow molding machine.

[0025] A first ball screw 33 is arranged between the two fixed blocks 32, which is parallel to the support guide column 35 and drives the first slide 41 to move horizontally. A first nut 38 corresponding to the first ball screw 33 is arranged in the first slide 41. A first servo motor 40 that drives the first ball screw 33 to rotate is arranged on the fixed block 32. The first servo motor 40 can be rotated by PLC to improve the rotation accuracy and response speed of the first ball screw 33, thereby accurately controlling the horizontal movement of the first slide 41.

[0026] A second ball screw 34 is provided between the two fixed blocks 32, which is parallel to the support guide column 35 and drives the second slide 42 to move laterally. A second nut 37 corresponding to the second ball screw 34 is provided in the second slide 42. A second servo motor 43 that drives the second ball screw 34 to rotate is provided on the fixed block. The second servo motor 43 can be rotated by PLC to accurately drive the lateral movement of the second slide 42, and cooperate with the first slide 41 to realize the lateral movement and support of the blowing system.

[0027] like Figure 3 As shown, the first slide 41 and the second slide 42 are each vertically provided with a stepped hole located above the avoidance groove 39. Rolling bearings 44 are installed in the stepped holes to facilitate the installation of the blowing system and provide rolling support for the rotating components of the blowing system via the rolling bearings 44. Bearing caps 36 are also provided on the first slide 41 and the second slide 42, respectively, located above the rolling bearings 44 to protect the rolling bearings 44. Furthermore, the stepped hole is located above the avoidance groove 39, which means that the blowing system is also located above the avoidance groove 39. The avoidance groove 39 allows for the avoidance of the bottom structure of the blowing system, facilitating the installation of a motor to drive the blowing system in rotation.

[0028] like Figure 1 As shown, the two ends of the fixed block 32 are respectively provided with a push rod 49 extending upwards, which can support and limit the template. Figure 3 As shown, the fixing block 32 is provided with a socket 50 corresponding to the ejector pin 49, and the lower portion of the ejector pin 49 is disposed in the socket 50, facilitating assembly. A keyway 48 extending axially is provided inwardly on one side of the ejector pin 49, and a fastening screw 47 extending into the keyway 48 is provided on one side of the fixing block 32 to secure the ejector pin 49 and prevent twisting of the ejector pin 49, thereby providing high stability.

[0029] In this embodiment, a top wheel 46 is provided on the top of the ejector rod 49 , which can be in rolling contact with the bottom surface of the template of the blow molding machine through the top wheel 46 , thereby reducing the movement resistance of the template.

[0030] In summary, the support drive mechanism for a blow molding machine disclosed in the present invention can be used to install and laterally move the blowing system to achieve the expansion of the blank, and has a fast response speed, and the first slide 41 and the second slide 42 have high movement sensitivity.

[0031] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A support material driving mechanism for a blow molding machine, characterized in that: include: The cam is secured to the chassis and has a locking mechanism which allows the cam to lock the chassis and to allow the chassis to move relative to the first and second seats.

2. The support driving mechanism for a blow molding machine according to claim 1, characterized in that: The number of the supporting material guide pillars is 2, and the first slide and the second slide are respectively provided with linear bearings corresponding to the supporting material guide pillars.

3. The support material driving mechanism for a blow molding machine according to claim 1, characterized in that: The first slide seat is provided with a first nut corresponding to the first ball screw, and the fixed block is provided with a first servo motor for driving the first ball screw to rotate.

4. The support driving mechanism for a blow molding machine according to claim 1, characterized in that: The second slide is provided with a second nut corresponding to the second ball screw, and the fixed block is provided with a second servo motor for driving the second ball screw to rotate.

5. The support driving mechanism for a blow molding machine according to claim 1, characterized in that: The first slide seat and the second slide seat are respectively provided with bearing covers located above the rolling bearings.

6. The support driving mechanism for a blow molding machine according to claim 1, characterized in that: Both ends of the fixing block are respectively provided with push rods extending upwards.

7. The support material driving mechanism for a blow molding machine according to claim 6, characterized in that: The fixing block is provided with a socket corresponding to the push rod, the lower part of the push rod is arranged in the socket, one side of the push rod is concavely provided with a keyway extending along the axial direction, and one side of the fixing block is provided with a fastening screw extending into the keyway.

8. The support driving mechanism for a blow molding machine according to claim 6, characterized in that: A top wheel is provided on the top of the push rod.

9. The support driving mechanism for a blow molding machine according to claim 1, characterized in that: The avoidance groove is a rectangular groove, the fixed blocks are located on both sides of the avoidance groove in the width direction, and the supporting material guide pillars extend horizontally along the length direction of the avoidance groove.

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