Bottom die of bottle blowing machine
By using a combined structure of sleeve, positioning pin and adjustment pad in the bottom mold of the bottle blower, the problem of offset of the bottom mold during the production process is solved, the stability and service life of the equipment are improved, and the production of beverage bottles is ensured. quality.
Patent Information
- Application Number
- CN202421128731.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During the production process, the bottom mold of the bottle blower is prone to deviation due to unstable positioning components, excessive wear and structural deviation, which affects the production quality of the beverage bottle.
A bottom mold structure including sleeve, positioning pin, locking bolt, cover plate, valve body, adjustment pad and top plate is designed. The positioning pin is designed through the upper and lower thickness design of the positioning pin and the auxiliary fixation of the adjustment pad to ensure the positioning pin. Stability and provides cushioning through springs and exhaust passages, improving the stability and convenience of the bottom mold.
The stability and difficulty in shifting of the base mold in the production process are achieved, and the production quality of beverage bottles and the service life of the equipment are improved.
Smart Images
Figure CN222290982U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bottle blowing machines, in particular to a bottom mold of a bottle blowing machine. Background Art
[0002] When producing beverage bottles, a bottle blowing machine is needed to blow up the heated preform in the mold. The mold of the bottle blowing machine generally includes two side molds and a bottom mold. The two side molds can be opened and closed. The bottom mold is located below the two side molds and together with the two side molds forms a mold cavity. The preform is blown up in the mold cavity. The bottom of the beverage bottle is generally concave inward. When the beverage bottle is demolded after being blown, the upper part of the bottom mold needs to move downward to separate from the beverage bottle; before blowing the bottle, the upper part of the bottom mold needs to move upward to seal the mold cavity. During the production process, the upper part of the bottom mold often deviates, resulting in defective beverage bottles. The reasons for the deviation include: the limit component is unstable, resulting in excessive wear, and the bottom mold structure is deviated and deformed. Utility Model Content
[0003] The utility model aims to overcome the above-mentioned disadvantages and provide a bottom mold of a bottle blowing machine which has a stable structure and is not easy to deviate.
[0004] To achieve the above purpose, the technical solution of the utility model is: a bottom mold of a bottle blowing machine, including a sleeve, a positioning pin, a locking bolt, and also including a cover plate, a valve body, a first adjustment pad, a second adjustment pad, and a top plate arranged in sequence from bottom to top; the upper part of the locking bolt is located at the second adjustment pad, the middle part passes through the first adjustment pad and the valve body, and the lower part is located at the cover plate, which is used to lock the cover plate, the valve body, the first adjustment pad, and the second adjustment pad together;
[0005] A first movable cavity is provided at the bottom of the cover plate, a first through hole is provided at the top of the first movable cavity, a second movable cavity is provided at the bottom of the valve body, a second through hole is provided at the top of the second movable cavity, a third through hole is provided at a position corresponding to the second through hole on the first adjustment plate, and a fourth through hole is provided at a position corresponding to the third through hole on the second adjustment pad;
[0006] The lower part of the sleeve is located in the first active cavity, the lower end of the sleeve is provided with a stop edge whose outer diameter is greater than the diameter of the first through hole, the upper end of the sleeve passes through the first through hole, the second through hole, the third through hole, and the fourth through hole in sequence, and the upper end of the sleeve can support the top plate when the sleeve moves upward, the sleeve is provided with a piston in the second active cavity, and the cover plate is provided with a first channel, and the first channel is connected to the lower part of the second active cavity;
[0007] A first pin hole is provided on the top of the valve body, a second pin hole is provided on the bottom of the top plate, the lower end of the locating pin is provided in the first pin hole, the upper end of the locating pin passes through the first adjustment pad and the second adjustment pad and then extends into the second pin hole, and the diameter of the first pin hole is greater than the diameter of the second pin hole.
[0008] The first adjustment pad is a silicone pad or a rubber pad, and the second adjustment pad is a metal pad. During the production of the bottle blowing machine, the second adjustment pad and the top plate are frequently separated and combined, and the top plate will not be tilted. The positioning pin includes two parts, an upper part with a thinner diameter and a lower part with a thicker diameter. The lower part of the positioning pin with a thicker diameter is stably fixed in the first pin hole and is not easily knocked crooked by the top plate. Moreover, the first adjustment pad and the second adjustment pad both cover the thinner diameter part of the positioning pin, and the position of the positioning pin is more stable.
[0009] Preferably, an exhaust hole is provided in the middle of the top plate, and an exhaust passage penetrating the upper and lower ends is provided on the sleeve, and the lower end of the exhaust hole faces the upper end of the sleeve.
[0010] Preferably, the top of the cover plate is provided with a plurality of mounting holes surrounding the periphery of the first through hole, each mounting hole is provided with a spring, the upper end of the spring is against the bottom of the piston; the side of the valve body is provided with a second channel, the second channel is connected to the upper part of the second active chamber. The piston and the sleeve can be pushed upward by passing gas into the first channel, and the piston and the sleeve can be pushed downward by passing gas into the second channel. The spring can support the piston when the sleeve moves downward, so that the sleeve can buffer the downward movement.
[0011] Preferably, the depth of the first pin hole is greater than twice the diameter of the first pin hole, and a third channel is provided on the side of the valve body, and the third channel is connected to the bottom of the first pin hole. Increasing the length of the locating pin inserted into the first pin hole can improve the stability of the locating pin, but it is easy to make it difficult to replace the locating pin. The third channel can improve the exhaust and inflation of the locating pin during installation to assist disassembly and improve the convenience of replacing the locating pin.
[0012] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the locating pin of the utility model has a structure that is thin at the top and thick at the bottom, which can be stably fixed on the valve body, and the first adjustment pad and the second adjustment pad can assist in fixing the upper part of the locating pin, the locating pin is not easy to shift during the frequent activities of the top plate, and the setting of the second adjustment plate makes the contact surface of the first adjustment plate and the top plate fit more closely, and the separation and combination of the two also have a buffering effect, thereby improving the stability of the bottom mold during the production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model.
[0015] Description of main reference numerals:
[0016] Cover plate 1; first movable chamber 11; valve body 2; first pin hole 21; second movable chamber 22; first adjustment pad 3; second adjustment pad 4; top plate 5; exhaust hole 51; second pin hole 52; sleeve 6; first channel 71; second channel 72; third channel 73; locking bolt 81; positioning pin 82; spring 83. DETAILED DESCRIPTION
[0017] The present invention is further described below with reference to the accompanying drawings and specific embodiments.
[0018] like Figure 1-Figure 2 As shown, the utility model is a bottom mold of a bottle blowing machine, including a sleeve 6, a positioning pin 82, a locking bolt 81, and a plurality of springs 83; the bottom mold also includes a cover plate 1, a valve body 2, a first adjustment pad 3, a second adjustment pad 4, and a top plate 5 which are arranged in sequence from bottom to top.
[0019] The upper part of the locking bolt 81 is located on the second adjustment pad 4, the middle part of the locking bolt 81 passes through the first adjustment pad 3 and the valve body 2, and the lower part of the locking bolt 81 is located on the cover plate 1. The locking bolt 81 is used to lock the cover plate 1, the valve body 2, the first adjustment pad 3, and the second adjustment pad 4 together. The second adjustment pad is a metal pad, and the first adjustment pad is a rubber pad.
[0020] The bottom of the cover plate 1 is provided with a first active cavity 11, the top of the first active cavity 11 is provided with a first through hole, the bottom of the valve body 2 is provided with a second active cavity 22, the top of the second active cavity 22 is provided with a second through hole, the first adjustment plate 3 is provided with a third through hole at a position corresponding to the second through hole, and the second adjustment pad 4 is provided with a fourth through hole at a position corresponding to the third through hole. The lower part of the sleeve 6 is located in the first active cavity, and the lower end of the sleeve 6 is provided with a retaining edge with an outer diameter greater than the diameter of the first through hole. The upper end of the sleeve 6 passes through the first through hole, the second through hole, the third through hole, and the fourth through hole in sequence. When the sleeve 6 moves upward, the upper end of the sleeve can support the top plate 5 and move the top plate upward. An exhaust hole 51 is provided in the middle of the top plate 5, and an exhaust channel running through the upper and lower ends is provided on the sleeve 6, and the lower end of the exhaust hole faces the upper end of the sleeve. The gas above the top can be discharged downward through the exhaust hole and the exhaust channel.
[0021] The sleeve 6 is provided with a piston 61 in the second active chamber 22, and the cover plate is provided with a first channel 71, which is connected to the lower part of the second active chamber 22. Filling the first channel with fluid can push the piston upward. The side of the valve body is provided with a second channel 72, which is connected to the upper part of the second active chamber 22. Passing fluid into the second channel can push the piston downward. The top of the cover plate 1 is provided with a plurality of mounting holes surrounding the outer periphery of the first through hole, and each mounting hole is provided with a spring 83, and the upper end of the spring 83 is against the bottom of the piston 61. When the piston moves downward, it can be buffered by the spring 83 to reduce the impact on the valve body.
[0022] like Figure 2 As shown, the top of the valve body 2 is provided with a first pin hole 21, and the depth of the first pin hole 21 is greater than twice the diameter of the first pin hole 21. The bottom of the top plate 5 is provided with a second pin hole 52. The positioning pin 82 includes a first column and a second column, the diameter of the second column is smaller than the first column, and the second column is arranged above the first column. The first column at the lower end of the positioning pin 82 is arranged in the first pin hole 21, and the second column at the upper end of the positioning pin passes through the first adjustment pad 3 and the second adjustment pad 4 and then extends into the second pin hole 52, and the diameter of the first pin hole is greater than the diameter of the second pin hole. A third channel is provided on the side of the valve body, and the third channel is connected to the bottom of the first pin hole.
[0023] The fluid introduced through the first channel can make the piston and the sleeve move upward, lift the top plate 5, and seal the bottom of the bottle blowing mold. After the fluid is discharged from the first channel, the sleeve 6 moves downward, and the top plate 5 can fall back to demould. When the sleeve 6 moves downward, the spring can provide a buffer to improve the stability of the bottom mold. The top plate 5 moves up and down guided by the positioning pin 82. The lower part of the positioning pin 82 is deeply inserted into the valve body and is limited by the first adjustment pad and the second adjustment pad. While ensuring easy replacement, it is also very stable and will not be offset due to frequent movement of the top plate.
[0024] The above-mentioned are only preferred embodiments of the present invention and cannot limit the scope of implementation of the present invention. All equivalent changes and decorations made according to the scope of the patent application of the present invention should still fall within the scope covered by the present invention.
Claims
1. A bottom mold of a bottle blowing machine, characterized in that: It includes a sleeve, a positioning pin, a locking bolt, and also includes a cover plate, a valve body, a first adjustment pad, a second adjustment pad, and a top plate which are sequentially arranged from bottom to top; the upper part of the locking bolt is located at the second adjustment pad, the middle part passes through the first adjustment pad and the valve body, and the lower part is located at the cover plate, and is used to lock the cover plate, the valve body, the first adjustment pad, and the second adjustment pad together; A first movable cavity is provided at the bottom of the cover plate, a first through hole is provided at the top of the first movable cavity, a second movable cavity is provided at the bottom of the valve body, a second through hole is provided at the top of the second movable cavity, a third through hole is provided at a position corresponding to the second through hole on the first adjustment plate, and a fourth through hole is provided at a position corresponding to the third through hole on the second adjustment pad; The lower part of the sleeve is located in the first active cavity, the lower end of the sleeve is provided with a stop edge whose outer diameter is greater than the diameter of the first through hole, the upper end of the sleeve passes through the first through hole, the second through hole, the third through hole, and the fourth through hole in sequence, and the upper end of the sleeve can support the top plate when the sleeve moves upward, the sleeve is provided with a piston in the second active cavity, and the cover plate is provided with a first channel, and the first channel is connected to the lower part of the second active cavity; A first pin hole is provided on the top of the valve body, a second pin hole is provided on the bottom of the top plate, the lower end of the locating pin is provided in the first pin hole, the upper end of the locating pin passes through the first adjustment pad and the second adjustment pad and then extends into the second pin hole, and the diameter of the first pin hole is greater than the diameter of the second pin hole.
2. The bottom mold of a bottle blowing machine according to claim 1, characterized in that: An exhaust hole is arranged in the middle of the top plate, an exhaust passage penetrating the upper and lower ends is arranged on the sleeve, and the lower end of the exhaust hole faces the upper end of the sleeve.
3. The bottom mold of a bottle blowing machine according to claim 1, characterized in that: The top of the cover plate is provided with a plurality of mounting holes surrounding the periphery of the first through hole, each mounting hole is provided with a spring, the upper end of the spring is against the bottom of the piston; the side of the valve body is provided with a second channel, the second channel is connected to the upper part of the second active chamber.
4. The bottom mold of a bottle blowing machine according to claim 1, characterized in that: The depth of the first pin hole is greater than twice the diameter of the first pin hole. A third channel is provided on the side of the valve body, and the third channel is connected to the bottom of the first pin hole.