PET (Polyethylene Terephthalate) bottle tail shearing device for one-step injection-stretch-blow molding machine
The modular PET bottle trimming device driven by a servo motor solves the problems of low trimming accuracy and efficiency in existing technologies, achieving high-precision and high-efficiency PET bottle trimming, adapting to the needs of different product specifications, and improving production efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-20
AI Technical Summary
Existing PET bottle cutting devices have poor precision and can only move back and forth, limiting their application range. This results in low efficiency, easy damage to the bottle bottom, and increased labor intensity and cost.
The modular PET bottle cutting device, driven by a servo motor, integrates the servo motor and lead screw to achieve up-and-down and back-and-forth movement of the pneumatic scissors. Combined with the pneumatic scissors and scissor holder, it improves cutting accuracy and efficiency.
It achieves high precision and efficient tail cutting of pneumatic shears, avoids accidental damage to products, adapts to the needs of products of different specifications, and improves product yield and production efficiency.
Smart Images
Figure CN224012880U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a PET bottle tail shearing device for one-step injection stretch blow molding machine belongs to the field of plastic machinery equipment. BACKGROUND
[0002] One-step injection stretch blow molding machine is one of the commonly used equipment for producing plastic hollow containers, which is characterized by setting injection mold, stretching mechanism and bottle blowing mold on a triangular rotating tower, and realizing one-step processing and molding of plastic hollow containers. When processing PET plastic hollow containers (PET plastic bottles), due to the limitation of the structure of the injection mold, and the requirement of the PET plastic bottle shape, the injection gate of the bottle bottom (bottle tail) needs to be sheared after the PET plastic bottle is formed. The traditional technology adopts manual tail shearing, which is low in efficiency, high in labor intensity and high in labor cost, therefore, the applicant has designed a simple tail shearing structure, which comprises a scissors and a cylinder driving the scissors to move forward and backward, and the scissors and the cylinder are fixed on a specified position of the machine. The disadvantages are: 1. the scissors are driven by the cylinder, which has poor precision, and sometimes the scissors will touch the bottom of the plastic bottle, causing damage to the bottom of the molded bottle and the plastic bottle being scrapped; 2. the scissors can only move forward and backward, and the up-down position cannot be adjusted, so the use range is limited. SUMMARY
[0003] The utility model aims at overcoming the shortcomings of the prior art, and provides a PET bottle tail shearing device for one-step injection stretch blow molding machine, which is driven by a servo motor and can move up and down and forward and backward, and has high tail shearing precision and efficiency.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A PET bottle tail shearing device for one-step injection stretch blow molding machine, comprising a stand column arranged on a rack platform, a first sliding seat slidingly arranged on the stand column, the first sliding seat being driven by a first servo motor to move up and down, a cross beam horizontally arranged on the first sliding seat, a second sliding seat slidingly arranged on the cross beam, the second sliding seat being driven by a second servo motor to move forward and backward, a cantilever horizontally arranged on the second sliding seat, and a pneumatic scissors arranged on the cantilever.
[0006] Further, the stand column and the first servo motor are integrally arranged as an electric cylinder one, and the electric cylinder one is vertically fixed on the rack platform.
[0007] Further, the cross beam and the second servo motor are integrally arranged as an electric cylinder two, and the electric cylinder two is horizontally fixed on the first sliding seat.
[0008] Further, a scissors fixing seat is arranged at the front end of the cantilever, and the pneumatic scissors is installed on the scissors fixing seat.
[0009] Further, the lower part of the scissors fixing seat is provided with a receiving hopper and a funnel.
[0010] Further, the upper part of the scissors fixing seat is provided with an outer cover, and the outer cover is provided with an opening, and the cutter head of the pneumatic scissors is exposed from the opening.
[0011] Further, the pneumatic scissors have 1-8.
[0012] The beneficial effects of the present application are as follows:
[0013] Compared with the prior art, the electric cylinder (a modular product integrated with a servo motor and a screw rod) drives the pneumatic scissors to move up and down and front and back, which is not only fast and low-noise, but also has higher precision, especially for the one-step injection blow molding machine, can adapt to the needs of different specifications of products for tail shearing, and can effectively avoid the damage of the cutter head to the product, and improve the product yield. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a three-dimensional schematic view of the PET bottle tail shearing device of the present application;
[0015] Figure 2 is a schematic view of the outer cover and the receiving hopper of the pneumatic scissors. DETAILED DESCRIPTION
[0016] The present application will be described in detail below with reference to specific implementation examples, which will help those skilled in the art to further understand the present application, but do not limit the present application in any form.
[0017] As shown in Figure 1 — Figure 2 The present application relates to a PET bottle tail shearing device for a one-step injection blow molding machine, which comprises a stand column 2 arranged on a rack platform 1, a first sliding seat 3 slidingly arranged on the stand column, the first sliding seat 3 being driven by a first servo motor 4 to move up and down, a cross beam 5 being arranged transversely on the first sliding seat 3, a second sliding seat 6 being slidingly arranged on the cross beam, the second sliding seat 6 being driven by a second servo motor 7 to move forward and backward, a cantilever 8 being arranged horizontally on the second sliding seat 6, and a pneumatic scissors 9 being arranged on the cantilever 8.
[0018] When working, the second sliding seat 6 is first driven by the second servo motor 7 to move forward, thereby driving the pneumatic scissors 9 to move forward, and then the first sliding seat 3 is driven by the first servo motor 4 to move upward, thereby driving the pneumatic scissors 9 to rise to a set position to shear the tail of the PET plastic bottle, which is not only fast and precise, but also effectively avoids the damage of the cutter head to the product, and can adapt to the needs of different specifications of products for tail shearing, and has good practicability.
[0019] Further, the column 2 and the first servo motor 4 are an integral part of the electric cylinder 01, and the electric cylinder 01 is vertically fixed on the rack platform. The cross beam 5 and the second servo motor 7 are an integral part of the electric cylinder 02, and the electric cylinder 02 is transversely fixed on the first sliding seat 3. The electric cylinder is a modular product of the integrated design of the servo motor and the lead screw, and in the technical scheme, the cylinder body of the electric cylinder is used as the column and the cross beam, so that the cost and the installation process can be saved.
[0020] Further, the front end of the cantilever 8 is provided with the scissors fixed seat 10, and the pneumatic scissors 9 are installed on the scissors fixed seat 10. With the scissors fixed seat, the pneumatic scissors are convenient to install.
[0021] Further, the lower part of the scissors fixed seat 10 is provided with the receiving hopper 11 and the funnel 12. The receiving hopper can receive the cut-off bottle tail, and the bottle tail falls into the collecting box along the funnel and is automatically collected.
[0022] Further, the upper part of the scissors fixed seat 10 is provided with the outer cover 13, and the outer cover is provided with the opening 14. The cutter head of the pneumatic scissors 9 is exposed to the opening 14. With the outer cover, the operator can avoid accidentally touching the scissors, and the cut-off bottle tail can not fly out of the receiving hopper.
[0023] Further, the pneumatic scissors 9 are 1-8. In actual production, the number of the pneumatic scissors corresponds to the number of the bottle blowing mold, and generally is 4, that is, 4 products are cut off at a time.
[0024] The above specific embodiments are used to explain and illustrate the present application, rather than limit the present application. Any modification and change made to the present application within the spirit and protection scope of the claims of the present application all fall into the protection scope of the present application.
Claims
1. A PET bottle tail-cutting device for a one-step injection stretch blow molding machine, characterized in that... It includes a column (2) set on a frame platform (1), a first sliding seat (3) slidably set on the column, the first sliding seat (3) is driven up and down by a first servo motor (4), a crossbeam (5) is set horizontally on the first sliding seat (3), a second sliding seat (6) slidably set on the crossbeam, the second sliding seat (6) is driven back and forth by a second servo motor (7), a cantilever (8) is set horizontally on the second sliding seat (6), and a pneumatic shear (9) is set on the cantilever (8).
2. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 1, characterized in that... The column (2) and the first servo motor (4) are integrated into an electric cylinder (01), which is vertically fixed on the frame platform.
3. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 1, characterized in that... The crossbeam (5) and the second servo motor (7) are integrated into an electric cylinder (02), which is horizontally fixed on the first sliding seat (3).
4. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 1, characterized in that... The cantilever (8) is provided with a scissor fixing seat (10) at its front end, and the pneumatic scissors (9) are installed on the scissor fixing seat (10).
5. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 4, characterized in that... The lower part of the scissor fixing seat (10) is provided with a receiving hopper (11) and a funnel (12).
6. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 4, characterized in that... The upper part of the scissor fixing seat (10) is provided with an outer cover (13), and an opening (14) is provided on the outer cover, through which the blade of the pneumatic scissors (9) protrudes.
7. The PET bottle tail-cutting device for a one-step injection stretch blow molding machine as described in claim 4, characterized in that... There are 1 to 8 pneumatic scissors (9).