Mold opening and closing device of blow molding machine

Abstract

The utility model relates to the field of blow molding machines, in particular to a mold opening and closing device of a blow molding machine, which is characterized in that a front cavity is mounted on the upper end surface of a base, an adjusting lead screw is rotatably mounted on the right end surface in the front cavity through a bearing, a first motor is mounted on the left end surface of the adjusting lead screw, and first sliding blocks are mounted on the outer side wall of the adjusting lead screw in bilateral symmetry; a mold is installed on the rear side end face of the first sliding block, a left seat is installed on the upper end face of the mold, a right seat is arranged on the right of the left seat, the left seat and the right seat are connected in a clamped mode through an inserting rod, a pressure sensor is embedded in the left seat, and an indicator lamp is installed on the upper end face of the left seat. By adopting the pressure sensor and the indicating lamp structure, the pressure sensor is pressed when the mold is closed, so that the indicating lamp is lightened, the mold is ensured to be in a closed state, and the problems that the mold cannot be closed due to dislocation and is difficult to perceive due to inconvenience in observation, and the forming effect is poor are avoided.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machines, and specifically to a blow molding machine mold opening and closing device. Background Technology

[0002] When a blow molding machine is in operation, a mold opening and closing device is needed when the product needs to be molded. It generally has two functions: one is to lock the mold to prevent the mold from moving, deforming and causing material to leak during injection molding; the other is to pull the injection-molded product out of the cavity when the mold is opened, so that the product is separated from the mold. This is the most important step in the production process of blow-molded products, so the quality of the mold opening and closing directly affects the quality of the blow-molded products.

[0003] Chinese patent discloses a blow molding machine mold opening and closing device (authorization announcement number CN 218928592 U). This patented technology can solve the problems of existing blow molding machine mold opening and closing devices, such as high energy consumption of pneumatic or hydraulic mechanisms, easy deviation after long-term use, and easy adhesion of molded products to the inner wall of the mold, which makes them difficult to remove and requires manual assistance to remove them, resulting in low practicality.

[0004] The patent lacks a direct and clear way to observe when the molds are not fully closed, which makes the molded products prone to poor quality. Furthermore, after long-term use, the inner ends of the screw and slider will rust, and there is a lack of effective lubrication methods. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a blow molding machine mold opening and closing device, including a base and a mold. A front cavity is installed on the upper end face of the base. An adjusting screw is rotatably installed on the right end face of the front cavity via a bearing. A first motor is installed on the left end face of the adjusting screw. First sliders are symmetrically installed on the outer side wall of the adjusting screw. A mold is installed on the rear end face of the first slider. A left seat is installed on the upper end face of the mold. A right seat is arranged to the right of the left seat. The left seat and the right seat are connected by a plug rod. A pressure sensor is embedded in the left seat. An indicator light is installed on the upper end face of the left seat. A control main board is arranged to the left of the pressure sensor. The indicator light and the pressure sensor are electrically connected to the control main board.

[0006] Preferably, a rear cavity is arranged behind the front cavity, and the front end face of the rear cavity is connected to the rear end face of the mold by a sliding fit. Side seats are symmetrically installed on the left side wall of the base, and a first spring rod is installed on the inner end of the side seat. The other end of the first spring rod is installed on the outer end of the mold.

[0007] Preferably, the upper end face of the front cavity is provided with through holes symmetrically on the left and right, the first slider is provided with an annular groove, and the inner end of the annular groove is provided with multiple inner holes along its circumferential direction.

[0008] Preferably, a second spring rod is installed on the upper end face of the front cavity, a U-shaped frame is installed on the upper end face of the second spring rod, and square holes are symmetrically opened on the upper end face of the front cavity.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. This utility model adopts a pressure sensor and indicator light structure. When the mold closes, pressing the pressure sensor will cause the indicator light to light up, thereby ensuring that the mold is in a closed state and avoiding misalignment between molds that may prevent closure. Due to the inconvenience of observation, this may be difficult to detect, resulting in poor molding effect.

[0011] 2. This utility model adopts a through hole, annular groove and inner hole structure to avoid corrosion at the connection between the first slider and the adjusting screw due to long-term use, and to ensure its stability when moving left and right. Attached Figure Description

[0012] Figure 1 This is a front view of a blow molding machine mold opening and closing device structure provided in an embodiment of this application;

[0013] Figure 2 This is a rear view of the structure of a blow molding machine mold opening and closing device provided in an embodiment of this application;

[0014] Figure 3 This is a sectional front view of a blow molding machine mold opening and closing device provided in an embodiment of this application;

[0015] Figure 4 This is a left sectional view of a blow molding machine mold opening and closing device provided in an embodiment of this application;

[0016] Figure 5 This is a sectional top view of a blow molding machine mold opening and closing device provided in an embodiment of this application;

[0017] In the diagram: 1. Base; 2. Mold; 11. Front cavity; 12. Adjusting screw; 13. First motor; 14. Left seat; 15. Insert rod; 16. Pressure sensor; 17. Indicator light; 18. Rear cavity; 19. First spring rod; 21. Through hole; 22. Annular groove; 23. Inner hole; 24. C-shaped frame; 25. Control main board. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0019] Please see Figures 1-5 This embodiment provides a blow molding machine mold opening and closing device, including a base 1 and a mold 2. A front cavity 11 is installed on the upper end face of the base 1. An adjusting screw 12 is rotatably installed on the right end face of the front cavity 11 via a bearing. A first motor 13 is installed on the left end face of the adjusting screw 12. First sliders are symmetrically installed on the outer side wall of the adjusting screw 12. The mold 2 is installed on the rear end face of the first slider. A left seat 14 is installed on the upper end face of the mold 2. A right seat is arranged to the right of the left seat 14. The left seat 14 and the right seat are connected by a plug rod 15. A pressure sensor 16 is embedded in the left seat 14. An indicator light 17 is installed on the upper end face of the left seat 14. The pressure sensor 16 is located to the left of... A control main board 25 is arranged, and indicator lights 17 and pressure sensors 16 are electrically connected to the control main board 25. The adjusting screws 12 are symmetrical with opposite thread directions. During operation, the control main board 25 is programmed with a PLC to control the operation of each device. The first motor 13 starts and moves the mold 2 inward to close it. At this time, the insertion rod 15 is inserted into the left seat 14 and presses the pressure sensor 16. When the control main board 25 senses the pressure signal, the indicator light 17 lights up, thus ensuring that the mold 2 is in a closed state and preventing misalignment between the molds 2, which would lead to failure to close. Due to the difficulty of observation, this would be hard to detect, resulting in poor molding effect.

[0020] A rear cavity 18 is arranged behind the front cavity 11. The front end face of the rear cavity 18 is connected to the rear end face of the mold 2 by a sliding fit. Side seats are symmetrically installed on the left side wall of the base 1. A first spring rod 19 is installed on the inner end of the side seat. The other end of the first spring rod 19 is installed on the outer end of the mold 2. During operation, the structure of the rear cavity 18 is used to ensure the stability of the mold 2 when moving left and right. The structure of the first spring rod 19 is used to further ensure the stable movement of the mold 2, thereby improving the overall stability of the device.

[0021] The upper surface of the front cavity 11 is symmetrically provided with through holes 21. The first slider is provided with an annular groove 22. The inner end of the annular groove 22 is provided with a plurality of inner holes 23 along its circumferential direction. During operation, lubricating oil is poured into the through holes 21, and the lubricating oil enters the annular groove 22 and is then discharged through the inner holes 23. This allows the threads on the inner end of the first slider to be lubricated, preventing corrosion at the connection between the first slider and the adjusting screw due to long-term use, and ensuring the stability of its left and right movement.

[0022] A second spring rod is installed on the upper end face of the front cavity 11, and a U-shaped frame 24 is installed on the upper end face of the second spring rod. Square holes are symmetrically opened on the left and right sides of the upper end face of the front cavity 11. When working, the second spring rod causes the U-shaped frame 24 to move down and pass through the square holes. A first slider is arranged on the inner end of the U-shaped frame 24. When the first motor 13 is started, the first slider moves outward and abuts against the inner end of the U-shaped frame 24, thereby enabling the positioning of the first slider and ensuring that it is arranged directly below the through hole 21 for easy lubrication.

[0023] In actual operation, the control motherboard 25 is programmed with a PLC to control the operation of each device. The first motor 13 starts and drives the mold 2 to move inward and close. At this time, the insertion rod 15 is inserted into the left seat 14 and presses the pressure sensor 16. When the control motherboard 25 senses the pressure signal, the indicator light 17 lights up, thus ensuring that the mold 2 is in a closed state and avoiding misalignment between the molds 2, which would prevent closure. Due to the difficulty in observation, this would be hard to detect and result in poor molding effect.

[0024] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A blow molding machine mold opening and closing device, comprising a base (1) and a mold (2), characterized in that, The upper end face of the base (1) is equipped with a front cavity (11). The right end face of the front cavity (11) is rotatably equipped with an adjusting screw (12) through a bearing. The left end face of the adjusting screw (12) is equipped with a first motor (13). The outer side wall of the adjusting screw (12) is symmetrically equipped with a first slider. The rear end face of the first slider is equipped with a mold (2). The upper end face of the mold (2) is equipped with a left seat (14). A right seat is arranged to the right of the left seat (14). The left seat (14) and the right seat are connected by a plug rod (15). A pressure sensor (16) is embedded in the left seat (14). An indicator light (17) is installed on the upper end face of the left seat (14).

2. The blow molding machine mold opening and closing device according to claim 1, characterized in that... A rear cavity (18) is arranged behind the front cavity (11), and the front end face of the rear cavity (18) is connected to the rear end face of the mold (2) by a sliding fit.

3. The blow molding machine mold opening and closing device according to claim 1, characterized in that, The base (1) has a side seat symmetrically installed on the left side wall. A first spring rod (19) is installed on the inner end of the side seat, and the other end of the first spring rod (19) is installed on the outer end of the mold (2).

4. The blow molding machine mold opening and closing device according to claim 3, characterized in that, The upper end face of the front cavity (11) is symmetrically provided with through holes (21), and the first slider is provided with an annular groove (22). The inner end of the annular groove (22) is provided with multiple inner holes (23) along its circumferential direction.

5. A blow molding machine mold opening and closing device according to claim 4, characterized in that, A second spring rod is installed on the upper end face of the front cavity (11), and a U-shaped frame (24) is installed on the upper end face of the second spring rod. Square holes are symmetrically opened on the upper end face of the front cavity (11).

6. The blow molding machine mold opening and closing device according to claim 1, characterized in that, A control board (25) is arranged to the left of the pressure sensor (16). The indicator light (17) and the pressure sensor (16) are electrically connected to the control board (25).

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