A bottle mouth positioning device for a blow molding machine

Abstract

This utility model discloses a bottle mouth positioning device for a blow molding machine, including a counter. A positioning hole is provided on the top of the counter, and a first positioning ring and a second positioning ring are respectively provided on both sides of the positioning hole. The first and second positioning rings form a circular ring. An electric telescopic rod is provided on one side of the top of the counter, and a circular fixing block is provided on the other side. The outer side of the first positioning ring is connected to the telescopic end of the electric telescopic rod through a mounting block. A connecting rod is provided on the outer side of the second positioning ring, and one end of the connecting rod is connected to the circular fixing block through a mounting cap. This utility model, using the above-mentioned bottle mouth positioning device for a blow molding machine, solves the problem in the prior art where the replacement operation of the preform positioning base is too cumbersome, seriously affecting the replacement efficiency and causing inconvenience.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, and in particular to a bottle mouth positioning device for blow molding machines. Background Technology

[0002] A blow molding machine is a machine that blows pre-made bottle preforms into plastic bottles using specific processes. It is mainly suitable for blowing hollow plastic containers such as carbonated beverage bottles, mineral water bottles, cosmetic bottles, oil bottles, and medicine bottles. The production process can utilize an automated blow molding system for efficient production. During preform production, the bottle neck is first fitted onto the outside of a preform positioning base. Then, a conveyor belt transports the preform to a heating chamber for heating. The heated preform is then blown into shape. Finally, the blown plastic bottle is removed from the preform positioning base, completing the bottle blowing operation. Because the bottle neck sizes vary, when mass-producing different plastic bottles, the preform positioning base needs to be changed according to the actual size of each bottle. However, the existing preform positioning base replacement operation is overly cumbersome, severely impacting efficiency and causing inconvenience. Utility Model Content

[0003] The purpose of this invention is to provide a bottle mouth positioning device for a blow molding machine, which solves the problem that the replacement operation of the preform positioning base in the prior art is too cumbersome, which seriously affects the replacement efficiency and causes inconvenience.

[0004] To achieve the above objectives, this utility model provides a bottle mouth positioning device for a blow molding machine, including a counter. The top of the counter is provided with a positioning hole, and a first positioning ring and a second positioning ring are respectively provided on both sides of the positioning hole. The first positioning ring and the second positioning ring form a circular ring. An electric telescopic rod is provided on one side of the top of the counter, and a circular fixing block is provided on the other side. The outer side of the first positioning ring is connected to the telescopic end of the electric telescopic rod through a mounting block. A connecting rod is provided on the outer side of the second positioning ring, and one end of the connecting rod is connected to the circular fixing block through a mounting cap.

[0005] Preferably, the circular fixing block is fixedly installed on the top of the counter. The mounting cap is cylindrical and hollow inside, with an opening at one end. The inner wall of the mounting cap has evenly distributed teeth along the circumference. The outer wall of the circular fixing block has grooves along the circumference that mesh with the teeth. The mounting cap is fitted onto the outside of the circular fixing block, and the teeth mesh with the grooves.

[0006] Preferably, the top of the counter is provided with a positioning groove, and the connecting rod is provided with a positioning block that cooperates with the positioning groove, and the positioning block is located in the positioning groove.

[0007] Preferably, a slide groove is provided directly below the electric telescopic rod at the top of the counter, a slide rod is provided in the slide groove, and a movable block is provided on the slide rod. One end of the movable block is in sliding contact with the bottom of the slide groove, and the other end is connected to the electric telescopic rod.

[0008] Preferably, the mounting block has a support rod inside, and the outer end of the support rod has a ball head. The telescopic end of the electric telescopic rod is hollow inside and has an opening at the end. It has a snap-fit ​​receiving part inside to accommodate the ball head. The snap-fit ​​receiving part is fixedly connected to the telescopic end of the electric telescopic rod. Both the inner and outer ends of the snap-fit ​​receiving part are open. The ball head is snapped into the inner opening of the snap-fit ​​receiving part through the outer opening of the snap-fit ​​receiving part.

[0009] Preferably, the inner diameter of the inner opening of the snap-fit ​​accommodating part is smaller than the inner diameter of the outer opening of the snap-fit ​​accommodating part, and the inner opening of the snap-fit ​​accommodating part is provided with multiple spaced gaps. The inner opening of the snap-fit ​​accommodating part can elastically expand outward so that the ball head can be squeezed into or pulled out of the snap-fit ​​accommodating part by external force.

[0010] Therefore, this utility model adopts the above-mentioned bottle mouth positioning device for a blow molding machine, which solves the problem that the replacement operation of the preform positioning base in the prior art is too cumbersome, seriously affecting the replacement efficiency and causing inconvenience. By setting an installation cap, a central fixing block, teeth, and grooves, it is easy to install the second positioning ring. By setting a ball head and a snap-fit ​​receiving part, the ball head snaps into the snap-fit ​​receiving part, which facilitates the installation of the first positioning ring.

[0011] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a top view of the counter in a bottle mouth positioning device for a blow molding machine according to this utility model;

[0013] Figure 2 This is a side view of the counter in a bottle mouth positioning device for a blow molding machine according to this utility model;

[0014] Figure 3 This is a schematic diagram of the interior of the mounting cap in a bottle mouth positioning device for a blow molding machine according to this utility model;

[0015] Figure 4 This is a top view of a circular fixing block in a bottle mouth positioning device for a blow molding machine according to this utility model;

[0016] Figure 5 This is an exploded view of the telescopic end and mounting block of the electric telescopic rod in a bottle mouth positioning device for a blow molding machine according to this utility model.

[0017] Figure 6 This is a schematic diagram of the telescopic end of the electric telescopic rod and the interior of the mounting block in a bottle mouth positioning device for a blow molding machine according to this utility model.

[0018] Figure 7 This is a schematic diagram of the snap-fit ​​receiving part in a bottle mouth positioning device for a blow molding machine according to this utility model.

[0019] Figure Labels

[0020] 1. Electric telescopic rod; 2. Mounting block; 3. Connecting rod; 4. Mounting cap; 5. Second positioning ring; 6. First positioning ring; 7. Counter; 8. Slide groove; 9. Slide rod; 10. Moving block; 11. Positioning hole; 12. Tooth; 13. Tooth groove; 14. Positioning block; 15. Positioning groove; 16. Circular fixing block; 17. Telescopic end; 18. Ball head; 19. Snap-fit ​​receiving part; 20. Support rod; 21. Gap. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] like Figure 1 As shown, a bottle neck positioning device for a blow molding machine includes a counter 7. A positioning hole 11 is provided on the top of the counter 7. A first positioning ring 6 and a second positioning ring 5 are respectively provided on both sides of the positioning hole 11, forming a circular ring. The first positioning ring 6 and the second positioning ring 5 each have multiple different sizes. A mounting block and the first positioning ring form a replaceable assembly, as do the connecting rod and the second positioning ring. The first positioning ring 6, the second positioning ring 5, and the positioning hole 11 position the bottle neck of the plastic bottle to be blow-molded. The blow-molded plastic bottle falls into the counter 7. An electric telescopic rod 1 is provided on one side of the top of the counter 7, and a circular fixing block 16 is provided on the other side. The outer side of the first positioning ring 6 is connected to the telescopic end 17 of the electric telescopic rod 1 via the mounting block 2.

[0025] like Figure 2 As shown, a slide groove 8 is located directly below the electric telescopic rod 1 at the top of the counter 7. A slide rod 9 is installed inside the slide groove 8, and a sliding block 10 is slidably connected to the slide rod 9. One end of the sliding block 10 is in sliding contact with the bottom of the slide groove 8, and the other end is connected to the electric telescopic rod 1. The extension and retraction of the electric telescopic rod 1 causes the sliding block 10 to slide along the slide rod 9, thereby causing the first positioning ring 6 to move linearly under the action of the slide rod 9, which helps to improve positioning accuracy.

[0026] like Figure 5 and Figure 6 As shown, the mounting block 2 has a support rod 20 inside, and a ball head 18 is provided at the outer end of the support rod 20. The telescopic end 17 of the electric telescopic rod 1 is hollow inside and has an opening at the end. It has a snap-fit ​​receiving part 19 inside to accommodate the ball head 18 (e.g., Figure 7 As shown, the snap-fit ​​receiving part 19 is fixedly connected to the telescopic end 17 of the electric telescopic rod 1. Both the inner and outer ends of the snap-fit ​​receiving part 19 are open. The ball head 18 snaps into the inner opening of the snap-fit ​​receiving part 19 through the outer opening. The inner diameter of the inner opening of the snap-fit ​​receiving part 19 is smaller than the inner diameter of the outer opening, and the inner opening of the snap-fit ​​receiving part 19 has multiple spaced gaps 21. The inner opening of the snap-fit ​​receiving part 19 can elastically expand outwards, allowing the ball head 18 to be pushed into or pulled out of the snap-fit ​​receiving part 19 by external force. The inner diameter of the outer opening of the snap-fit ​​receiving part 19 is matched to the diameter of the ball head 18.

[0027] Mounting block 2 engages with the telescopic end 17 of the electric telescopic rod 1. The ball head 18 inside mounting block 2 is inserted into the engaging receiving part 19 of the telescopic end 17 of the electric telescopic rod 1. By pushing mounting block 2 with external force, the ball head 18 is made to engage with the engaging receiving part 19, and the inner wall surface of mounting block 2 contacts the outer surface of the telescopic end 17 of the electric telescopic rod 1, thereby completing the installation of the first positioning ring 6. When removing the first positioning ring 6, the ball head 18 is pulled out from the engaging receiving part 19 with external force, thus completing the replacement of the first positioning ring 6.

[0028] The second positioning ring 5 has a connecting rod 3 on its outer side, and one end of the connecting rod 3 is connected to the circular fixing block 16 through the mounting cap 4.

[0029] like Figure 3 and Figure 4As shown, a circular fixing block 16 is fixedly installed on the top of the counter 7. The mounting cap 4 is cylindrical and hollow inside, with an opening at one end. The inner wall of the mounting cap 4 has evenly distributed teeth 12 along its circumference. The outer wall of the circular fixing block 16 has grooves 13 along its circumference that mesh with the teeth 12. The mounting cap 4 is fitted onto the outer side of the circular fixing block 16, with the teeth 12 meshing with the grooves 13. A positioning groove 15 is provided on the top of the counter 7. A positioning block 14 that mates with the positioning groove 15 is provided on the connecting rod 3. The positioning block 14 is located within the positioning groove 15. Different sizes of second positioning rings 5 ​​correspond to different connecting rods 3, and the corresponding positioning blocks 14 on the connecting rods 3 are different. However, the positioning block 14 is located within the positioning groove 15, and the center line of the ring formed by the first positioning ring 6 and the second positioning ring 5 of different sizes always coincides with the center line of the positioning hole 11. Both the top center of the mounting cap 4 and the center of the circular fixing block 16 have bolt holes. When the mounting cap 4 is fastened to the circular fixing block 16, the mounting cap 4 is then locked to the circular fixing block 16 with bolts. At this time, the positioning block 14 is located in the positioning groove 15, and the first positioning ring 6 and the second positioning ring 5 form a circle, with the center line of the circle and the center line of the positioning hole 11 on the same straight line. The end of the second positioning ring 5 has an insert block, and the end of the first positioning ring 6 has a slot (not shown in the figure) corresponding to the insert block. When the first positioning ring 6 and the second positioning ring 5 form a circle, the insert block is inserted into the slot. When disassembling and replacing the second positioning ring 5, the bolts are removed, and the mounting cap 4 is pulled out of the circular fixing block 16. At this time, the positioning block 14 leaves the positioning groove 15, and a second positioning ring 5 of other sizes can be replaced.

[0030] Therefore, this utility model adopts the above-mentioned bottle mouth positioning device for a blow molding machine, which solves the problem that the replacement operation of the preform positioning base in the prior art is too cumbersome, seriously affecting the replacement efficiency and causing inconvenience. By setting an installation cap, a circular fixing block, as well as teeth and grooves, the installation and replacement of the second positioning ring is convenient. By setting a ball head and a snap-fit ​​receiving part, the ball head snaps into the snap-fit ​​receiving part, which facilitates the installation and replacement of the first positioning ring. The installation and replacement operation is simple and efficient.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A bottle neck positioning device for a blow molding machine, characterized in that: The device includes a counter with a positioning hole on the top. A first positioning ring and a second positioning ring are respectively provided on both sides of the positioning hole. The first positioning ring and the second positioning ring form a circle. An electric telescopic rod is provided on one side of the top of the counter, and a circular fixing block is provided on the other side. The outer side of the first positioning ring is connected to the telescopic end of the electric telescopic rod through a mounting block. A connecting rod is provided on the outer side of the second positioning ring, and one end of the connecting rod is connected to the circular fixing block through a mounting cap.

2. The bottle neck positioning device for a blow molding machine according to claim 1, characterized in that: The circular fixing block is fixedly installed on the top of the counter. The mounting cap is cylindrical and hollow inside, with an opening at one end. The inner wall of the mounting cap has evenly distributed teeth along the circumference. The outer wall of the circular fixing block has grooves along the circumference that mesh with the teeth. The mounting cap is fitted onto the outside of the circular fixing block, and the teeth mesh with the grooves.

3. The bottle neck positioning device for a blow molding machine according to claim 1, characterized in that: The top of the counter is provided with a positioning groove, and the connecting rod is provided with a positioning block that cooperates with the positioning groove. The positioning block is located in the positioning groove.

4. The bottle neck positioning device for a blow molding machine according to claim 1, characterized in that: A slide groove is provided directly below the electric telescopic rod at the top of the counter. A slide rod is provided in the slide groove, and a sliding block is provided on the slide rod. One end of the sliding block slides in contact with the bottom of the slide groove, and the other end is connected to the electric telescopic rod.

5. A bottle mouth positioning device for a blow molding machine according to claim 1, characterized in that: The mounting block has a support rod inside, and a ball head at the outer end of the support rod. The telescopic end of the electric telescopic rod is hollow inside and has an opening at the end. It has a snap-fit ​​receiving part inside to accommodate the ball head. The snap-fit ​​receiving part is fixedly connected to the telescopic end of the electric telescopic rod. Both the inner and outer ends of the snap-fit ​​receiving part are open. The ball head is snapped into the inner opening of the snap-fit ​​receiving part through the outer opening of the snap-fit ​​receiving part.

6. A bottle neck positioning device for a blow molding machine according to claim 5, characterized in that: The inner diameter of the inner opening of the snap-fit ​​accommodating part is smaller than the inner diameter of the outer opening of the snap-fit ​​accommodating part, and the inner opening of the snap-fit ​​accommodating part is provided with multiple spaced gaps. The inner opening of the snap-fit ​​accommodating part can elastically expand outward so that the ball head can be squeezed into or pulled out of the snap-fit ​​accommodating part by external force.

Images