An automated loading and unloading device for the blow molding process of plastic bottles

Abstract

This application provides an automated loading and unloading device for the plastic bottle blow molding process, relating to the field of plastic bottle blow molding technology. It includes a fixed frame with a motor fixedly installed on the bottom inner wall. Through the configured plastic bottle blow molding loading and unloading components, preforms are sequentially placed in the middle of multiple preform clamping blocks. Because the device has multiple clamping devices, it allows workers to stay away from the heating chamber, preventing burns. A first electric telescopic rod is controlled to move multiple control slide rods and control blocks. After the control blocks move, they can drive a connecting rocker arm to swing at an angle. The connecting rocker arm can drive the clamping arm and preform clamping blocks to swing. After the preform clamping blocks move, they can clamp and fix the preforms. The motor is controlled to drive the drive shaft and turntable to rotate, allowing the clamped preforms to rotate and move below the air pipe, making loading more convenient.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle blow molding technology, and in particular to an automated loading and unloading device for the plastic bottle blow molding process. Background Technology

[0002] Plastic bottles are mainly used as disposable packaging containers for liquids or solids such as beverages, food, edible oils, and agricultural and veterinary drugs. They are characterized by being unbreakable, inexpensive, and highly transparent, thus having a huge market demand. Plastic bottles are generally made by blow molding. In recent years, with the rapid development of blow molding technology, blow molding can be used to form various types of bottles.

[0003] When in use, the existing device requires removing the blow-molded plastic bottle and placing the new preform above the clamping device. Since the temperature above the clamping device is high after the previous plastic bottle has been heated and blow-molded, workers are prone to burns. Therefore, we propose an automated loading and unloading device for the plastic bottle blow molding process. Utility Model Content

[0004] In view of this, this application provides an automated loading and unloading device for the blow molding process of plastic bottles, aiming to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated loading and unloading device for a plastic bottle blow molding process includes a fixed frame, a motor fixedly installed on the bottom inner wall of the fixed frame, a drive shaft fixedly installed on the output end of the motor, a turntable fixedly installed on the top of the drive shaft, a plurality of preform clamping boxes fixedly installed on the outer side of the turntable, and a plastic bottle blow molding loading and unloading assembly arranged above the preform clamping boxes.

[0007] The plastic bottle blow molding loading and unloading assembly includes a first electric telescopic rod, a clamping frame, a control slide rod, a clamping arm, and a preform clamping block. The first electric telescopic rod is fixedly installed on the inner wall of one side of the preform clamping box. The clamping frame is fixedly installed on one side of the preform clamping box. The control slide rod is fixedly installed at the output end of the first electric telescopic rod. The clamping arm is rotatably installed on the left and right sides of the inner side of the clamping frame. The preform clamping block is fixedly installed on one side of the clamping arm.

[0008] Preferably, a mounting bracket is fixedly installed on the bottom inner wall of the fixed frame, a feeding conveyor belt is rotatably installed on the inner side of the mounting bracket, and a plastic bottle blow molding assembly is provided above the fixed frame.

[0009] Preferably, the plastic bottle blow molding loading and unloading assembly further includes a control block and connecting rockers. The control block is fixedly installed on the outside of one end of the control slide rod, and one end of each of the connecting rockers is rotatably installed on the outside of the control block. The other end of each connecting rocker is rotatably installed on one side of the clamping arm.

[0010] Preferably, the plastic bottle blow molding assembly includes a second electric telescopic rod, a fixed box, a bidirectional lead screw, and a heating chamber. The second electric telescopic rod is fixedly installed on the top left and right sides of the fixed frame. The fixed box is fixedly installed on the output end of the second electric telescopic rod. The bidirectional lead screw is rotatably installed on the inner side of the fixed box. The heating chamber is threadedly installed on the outer left and right sides of the bidirectional lead screw.

[0011] Preferably, the plastic bottle blow molding assembly further includes an air pump, a mounting plate, and an air pipe. The air pump is fixedly installed on one side of the fixed box, the mounting plate is fixedly installed on the bottom of the fixed box, the input end of the air pipe is fixedly installed on the output end of the air pump, and the output end of the air pipe is fixedly installed on the inner side of the mounting plate.

[0012] Preferably, the plastic bottle blow molding assembly further includes a gear and a rack, the gear being fixedly mounted on the outside of the bidirectional lead screw, and the rack being fixedly mounted on the top inner wall of the fixing frame, the rack and the gear meshing with each other.

[0013] Preferably, an arc-shaped groove is provided on one side of the heating chamber, and a heating resistor is provided on one side of the heating chamber.

[0014] Preferably, a rotating groove is provided on one side of the clamping frame, the clamping arm is rotatably disposed inside the rotating groove, and a silicone rubber pad is provided on one side of the preform clamping block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model discloses an automated loading and unloading device for the blow molding process of plastic bottles. Through the set plastic bottle blow molding loading and unloading components, the preforms are placed sequentially in the middle of multiple preform clamping blocks. Because the device has multiple clamping devices, it can keep the workers away from the heating chamber and prevent burns. The first electric telescopic rod is controlled to drive multiple control slide rods and control blocks to move. After the control blocks move, they can drive the connecting rocker arm to swing at an angle. The connecting rocker arm can drive the clamping arm and the preform clamping block to swing. After the preform clamping block moves, it can clamp and fix the preform. The motor drives the drive shaft and turntable to rotate, allowing the clamped preform to rotate and rotate to the bottom of the air pipe, making the loading of the device more convenient.

[0017] This utility model discloses an automated loading and unloading device for the blow molding process of plastic bottles. Through the set plastic bottle blow molding components, the second electric telescopic rod can be controlled to drive the fixed box to descend. The gear on the top of the fixed box can mesh with the rack, which can drive the bidirectional lead screw to rotate after meshing. After the bidirectional lead screw rotates, it can drive the heating chambers on both sides to move through the thread engagement, so that the heating chambers abut against the bottle preform. The temperature of the bottle preform rises inside the heating chamber. The air pump blows gas into the bottle preform through the air pipe. The bottle preform is formed under the constraint of the two heating chambers. After the plastic bottle is demolded, it can automatically fall above the unloading conveyor belt to realize automatic unloading and collection.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an automated loading and unloading device for the blow molding process of plastic bottles proposed in this utility model;

[0020] Figure 2 This is a schematic diagram showing a three-dimensional view of a partial structure of an automated loading and unloading device for a plastic bottle blow molding process according to an embodiment of this application;

[0021] Figure 3 A schematic diagram showing a three-dimensional view of a portion of the structure of a turntable provided according to an embodiment of this application is shown;

[0022] Figure 4 for Figure 3 A magnified structural diagram of A in the diagram.

[0023] Figure label:

[0024] 1. Plastic bottle blow molding loading and unloading assembly; 2. Plastic bottle blow molding assembly; 3. Fixing frame; 4. Motor; 5. Drive shaft; 6. Turntable; 7. Preform clamping box; 8. Mounting frame; 9. Unloading conveyor belt;

[0025] 12. Electric telescopic rod; 13. Clamping frame; 14. Control slide rod; 15. Clamping arm; 16. Preform clamping block; 17. Control block; 18. Connecting rocker arm;

[0026] 21. Second electric telescopic rod; 22. Fixing box; 23. Two-way lead screw; 24. Heating chamber; 25. Air pump; 26. Mounting plate; 27. Air pipe; 28. Gear; 29. ​​Rack. Detailed Implementation

[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figure 1-4 An automated loading and unloading device for the blow molding process of plastic bottles includes a fixed frame 3, a motor 4 is fixedly installed on the bottom inner wall of the fixed frame 3, a drive shaft 5 is fixedly installed on the output end of the motor 4, a turntable 6 is fixedly installed on the top of the drive shaft 5, a plurality of preform clamping boxes 7 are fixedly installed on the outer side of the turntable 6, and a plastic bottle blow molding loading and unloading assembly 1 is provided above the preform clamping boxes 7.

[0030] The plastic bottle blow molding loading and unloading assembly 1 includes a first electric telescopic rod 11, a clamping frame 12, a control slide rod 13, a clamping arm 14, and a preform clamping block 15. The first electric telescopic rod 11 is fixedly installed on one side of the inner wall of the preform clamping box 7. The clamping frame 12 is fixedly installed on one side of the preform clamping box 7. The control slide rod 13 is fixedly installed on the output end of the first electric telescopic rod 11. The clamping arm 14 is rotatably installed on the left and right sides of the inner side of the clamping frame 12. The preform clamping block 15 is fixedly installed on one side of the clamping arm 14.

[0031] In this embodiment, a mounting frame 8 is fixedly installed on the bottom inner wall of the fixed frame 3, a feeding conveyor belt 9 is rotatably installed on the inner side of the mounting frame 8, and a plastic bottle blow molding assembly 2 is provided above the fixed frame 3.

[0032] In this embodiment, the plastic bottle blow molding loading and unloading assembly 1 also includes a control block 16 and a connecting rocker arm 17. The control block 16 is fixedly installed on the outside of one end of the control slide bar 13. One end of the multiple connecting rockers 17 is rotatably installed on the outside of the control block 16, and the other end of the connecting rockers 17 is rotatably installed on one side of the clamping arm 14.

[0033] In this embodiment, the plastic bottle blow molding assembly 2 includes a second electric telescopic rod 21, a fixed box 22, a bidirectional lead screw 23, and a heating chamber 24. The second electric telescopic rod 21 is fixedly installed on the top left and right sides of the fixed frame 3. The fixed box 22 is fixedly installed on the output end of the second electric telescopic rod 21. The bidirectional lead screw 23 is rotatably installed on the inner side of the fixed box 22. The heating chamber 24 is threadedly installed on the outer left and right sides of the bidirectional lead screw 23.

[0034] In this embodiment, the plastic bottle blow molding assembly 2 also includes an air pump 25, a mounting plate 26, and an air pipe 27. The air pump 25 is fixedly installed on one side of the fixed box 22, the mounting plate 26 is fixedly installed on the bottom of the fixed box 22, the input end of the air pipe 27 is fixedly installed on the output end of the air pump 25, and the output end of the air pipe 27 is fixedly installed on the inner side of the mounting plate 26. The air pump 25 blows gas into the preform through the air pipe 27. The preform is formed under the constraint of the two heating chambers 24. The heating chambers 24 are then demolded from the plastic bottle, making the loading and unloading of the device more convenient and faster.

[0035] In this embodiment, the plastic bottle blow molding assembly 2 also includes a gear 28 and a rack 29. The gear 28 is fixedly installed on the outside of the bidirectional lead screw 23, and the rack 29 is fixedly installed on the top inner wall of the fixed frame 3. The rack 29 and the gear 28 mesh with each other. When the second electric telescopic rod 21 drives the fixed box 22 to descend, the gear 28 above the fixed box 22 can mesh with the rack 29. After the gear 28 meshes, it can drive the bidirectional lead screw 23 to rotate, so that the device only needs a single drive component.

[0036] In this embodiment, an arc-shaped groove is provided on one side of the heating chamber 24, and a heating resistor is provided on one side of the heating chamber 24; after the bidirectional lead screw 23 rotates, it can drive the heating chambers 24 on both sides to move through the thread engagement, and make the heating chamber 24 abut against the preform, so that the temperature of the preform inside the heating chamber 24 rises.

[0037] In this embodiment, a rotating groove is provided on one side of the clamping frame 12, and the clamping arm 14 is rotatably disposed inside the rotating groove. A silicone rubber pad is provided on one side of the preform clamping block 15. The silicone rubber pad has excellent high temperature resistance and can be used for a long time in a temperature range of -50℃ to 250℃. At the same time, it also has good flexibility, elasticity and chemical corrosion resistance, and can adapt to objects of different shapes without causing damage to the surface of the clamped objects. The first electric telescopic rod 11 is controlled to drive multiple control slide rods 13 and control blocks 16 to move. After the control blocks 16 move, they can drive the connecting rocker arm 17 to swing. The connecting rocker arm 17 can drive the clamping arm 14 and the preform clamping block 15 to swing. After the preform clamping block 15 moves, it can clamp and fix the preform.

[0038] The specific operation is as follows: the preform is placed in the middle of multiple preform clamping blocks 15. Since there are many clamping devices, the staff can be kept away from the heating chamber 24 to prevent burns. The first electric telescopic rod 11 is controlled to drive multiple control slide rods 13 and control blocks 16 to move. After the control blocks 16 move, they can drive the connecting rocker arm 17 to swing. The connecting rocker arm 17 can drive the clamping arm 14 and the preform clamping block 15 to swing. After the preform clamping block 15 moves, it can clamp and fix the preform. The motor 4 is controlled to drive the drive shaft 5 and the turntable 6 to rotate, so that the clamped preform can rotate and rotate to the bottom of the air tube 27.

[0039] At this time, the second electric telescopic rod 21 can be controlled to drive the fixed box 22 to descend. The gear 28 above the fixed box 22 can mesh with the rack 29, allowing the gear 28 to drive the bidirectional lead screw 23 to rotate after meshing. After the bidirectional lead screw 23 rotates, it can drive the heating chambers 24 on both sides to move through the threaded engagement, and make the heating chambers 24 come into contact with the preform. The temperature of the preform rises inside the heating chamber 24. The air pump 25 blows gas into the preform through the air pipe 27. The preform is formed under the constraint of the two heating chambers 24. The second electric telescopic rod 21 rises and the preform clamping block 15 clamps the molded plastic bottle. At this time, the heating chamber 24 can be separated, allowing the plastic bottle to be demolded and separated. The plastic bottle is clamped by the preform clamping block 15. At this time, the air pump 25 blows air through the air pipe 27 to cool the plastic bottle. After cooling and molding, the clamping of the plastic bottle can be released, allowing the plastic bottle to fall above the unloading conveyor belt 9 for conveying and collection. This prevents the plastic bottle from deforming during the unloading process, making the unloading of the device more convenient and faster.

[0040] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated loading and unloading device for the blow molding process of plastic bottles, characterized in that, include: A fixed frame (3) is provided, a motor (4) is fixedly installed on the bottom inner wall of the fixed frame (3), a drive shaft (5) is fixedly installed on the output end of the motor (4), a turntable (6) is fixedly installed on the top of the drive shaft (5), a plurality of preform clamping boxes (7) are fixedly installed on the outside of the turntable (6), and a plastic bottle blow molding loading and unloading assembly (1) is provided above the preform clamping box (7). The plastic bottle blow molding loading and unloading assembly (1) includes a first electric telescopic rod (11), a clamping frame (12), a control slide rod (13), a clamping arm (14), and a preform clamping block (15). The first electric telescopic rod (11) is fixedly installed on one side of the inner wall of the preform clamping box (7). The clamping frame (12) is fixedly installed on one side of the preform clamping box (7). The control slide rod (13) is fixedly installed at the output end of the first electric telescopic rod (11). The clamping arm (14) is rotatably installed on the left and right sides of the inner side of the clamping frame (12). The preform clamping block (15) is fixedly installed on one side of the clamping arm (14).

2. The automated loading and unloading equipment for the blow molding process of plastic bottles according to claim 1, characterized in that, The bottom inner wall of the fixed frame (3) is fixedly installed with an installation frame (8), and a feeding conveyor belt (9) is rotatably installed on the inner side of the installation frame (8). A plastic bottle blow molding assembly (2) is provided above the fixed frame (3).

3. The automated loading and unloading equipment for the blow molding process of plastic bottles according to claim 1, characterized in that, The plastic bottle blow molding loading and unloading assembly (1) also includes a control block (16) and a connecting rocker arm (17). The control block (16) is fixedly installed on the outside of one end of the control slide bar (13). One end of the multiple connecting rockers (17) is rotatably installed on the outside of the control block (16), and the other end of the connecting rocker arm (17) is rotatably installed on one side of the clamping arm (14).

4. The automated loading and unloading equipment for the blow molding process of plastic bottles according to claim 2, characterized in that, The plastic bottle blow molding assembly (2) includes a second electric telescopic rod (21), a fixed box (22), a bidirectional lead screw (23), and a heating chamber (24). The second electric telescopic rod (21) is fixedly installed on the top left and right sides of the fixed frame (3). The fixed box (22) is fixedly installed on the output end of the second electric telescopic rod (21). The bidirectional lead screw (23) is rotatably installed on the inner side of the fixed box (22). The heating chamber (24) is threadedly installed on the outer left and right sides of the bidirectional lead screw (23).

5. An automated loading and unloading device for the blow molding process of plastic bottles according to claim 4, characterized in that, The plastic bottle blow molding assembly (2) also includes an air pump (25), a mounting plate (26), and an air pipe (27). The air pump (25) is fixedly installed on one side of the fixed box (22), the mounting plate (26) is fixedly installed on the bottom of the fixed box (22), the input end of the air pipe (27) is fixedly installed on the output end of the air pump (25), and the output end of the air pipe (27) is fixedly installed on the inside of the mounting plate (26).

6. The automated loading and unloading equipment for the blow molding process of plastic bottles according to claim 4, characterized in that, The plastic bottle blow molding assembly (2) also includes a gear (28) and a rack (29). The gear (28) is fixedly installed on the outside of the bidirectional lead screw (23), and the rack (29) is fixedly installed on the top inner wall of the fixing frame (3). The rack (29) and the gear (28) mesh with each other.

7. An automated loading and unloading device for the blow molding process of plastic bottles according to claim 4, characterized in that, An arc-shaped groove is provided on one side of the heating chamber (24), and a heating resistor is provided on one side of the heating chamber (24).

8. The automated loading and unloading equipment for the blow molding process of plastic bottles according to claim 1, characterized in that, The clamping frame (12) has a rotating groove on one side, the clamping arm (14) is rotatably disposed inside the rotating groove, and the preform clamping block (15) has a silicone rubber pad on one side.

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