Raw material crushing and stirring machine for PET bottle blank production

Abstract

The utility model discloses a raw material crushing and stirring machine for PET (polyethylene terephthalate) bottle blank production, which comprises a bottom plate, a second crushing box body fixedly connected onto the bottom plate, a fourth fixing frame fixedly connected onto the bottom plate, a second driving motor fixedly mounted on the fourth fixing frame, two second rotating shafts rotationally connected onto the second crushing box body, and a second driving motor fixedly mounted on the second rotating shafts. The second rotating shaft close to the fourth fixing frame is connected with an output shaft of a second driving motor, a smashing wheel is connected to the second rotating shaft, and a gear is connected to the second rotating shaft. Through the cooperation of the screening box body, the screening net plate, the first electric push rod, the first connecting rod and an elastic rope, the screening net plate screens raw materials which are crushed for the first time, the situation that the raw materials with unqualified sizes are mixed with qualified raw materials is prevented, meanwhile, the unqualified raw materials can be conveyed, and the screening efficiency is improved. And unqualified raw materials can be conveyed into the second crushing box body, and the crushing wheels can perform secondary crushing on the unqualified raw materials, so that the crushing effect of the raw materials is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of PET preform production technology, and in particular relates to a raw material crushing and mixing machine for PET preform production. Background Technology

[0002] PET preforms are typical injection-molded products, easy to transport, mostly made of plastic, with uniform texture and good insulation.

[0003] The utility model patent with publication number CN210552398U discloses a crushing device for processing PET bottle preforms, including a crushing device shell, a moving device, and a lifting device. The moving device is movably installed inside the crushing device shell, and the lifting device is movably installed inside the crushing device shell. This device only performs the initial crushing of the raw materials. If the crushing is incomplete, the volume of the raw materials will be too large, resulting in unqualified raw materials, and a secondary crushing is required. Therefore, a raw material crushing and mixing machine for PET bottle preform production is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a raw material crushing and mixing machine for PET preform production, so as to solve the problems mentioned in the background art.

[0005] A raw material crushing and mixing machine for PET preform production includes a base plate, a support frame fixedly connected to the base plate, a first crushing chamber fixedly connected to the support frame, a feed pipe fixedly connected to the first crushing chamber, a discharge pipe fixedly connected to the first crushing chamber, an electric valve installed on the discharge pipe, a first fixing frame fixedly connected to the first crushing chamber, a first drive motor fixedly mounted on the first fixing frame, a first rotating shaft connected to the output shaft of the first drive motor, the first rotating shaft being rotatably connected to the first crushing chamber, a crushing blade connected to the first rotating shaft, a screening box fixedly connected to the base plate, a screening screen plate rotatably connected to the screening box, two second fixing frames fixedly connected to the screening box, and a first electric valve fixedly mounted on the second fixing frames. The device consists of a moving push rod, a first electric push rod telescopic rod connected to a first connecting rod, an elastic rope connected between the first connecting rod and the screening screen, and a sliding connection between the elastic rope and the support frame. A third fixed frame is fixedly connected to the base plate, and a second electric push rod is fixedly installed on the third fixed frame. A second electric push rod telescopic rod is connected to a second connecting rod, and a baffle plate is connected to the second connecting rod. A second crushing chamber is fixedly connected to the base plate, and a fourth fixed frame is fixedly connected to the base plate. A second drive motor is fixedly installed on the fourth fixed frame. Two second rotating shafts are rotatably connected to the second crushing chamber. The second rotating shaft near the fourth fixed frame is connected to the output shaft of the second drive motor. Crushing wheels and gears are connected to the second rotating shafts, and the two gears mesh.

[0006] Furthermore, limit blocks are fixedly connected to the screening box.

[0007] Furthermore, mounting rings are connected to the screening plate.

[0008] Furthermore, reinforcing rings are fixedly connected to the support frame.

[0009] The beneficial effects of this utility model are:

[0010] This invention utilizes the cooperation of a screening box, a screening screen, a first electric push rod, a first connecting rod, and an elastic rope to enable the screening screen to screen the raw materials after initial crushing, preventing substandard materials from mixing with qualified materials. Simultaneously, it transports substandard materials to a second crushing box, where the crushing wheels perform secondary crushing, thus ensuring the optimal crushing effect. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the raw material crushing and mixing machine for PET bottle preform production according to this utility model;

[0012] Figure 2 This is a cross-sectional three-dimensional structural diagram of the first crushing chamber;

[0013] Figure 3 This is a cross-sectional three-dimensional structural diagram of the screening box;

[0014] Figure 4 A side view of the three-dimensional structure supporting the frame;

[0015] Figure 5 This is a side view of the three-dimensional structure of the screening box;

[0016] Figure 6 This is a cross-sectional three-dimensional structural diagram of the second crushing chamber.

[0017] In the diagram, 1-base plate, 2-support frame, 3-first crushing chamber, 4-feed pipe, 5-discharge pipe, 6-electric valve, 7-first fixed frame, 8-first drive motor, 9-first rotating shaft, 10-crushing blade, 11-screening chamber, 12-screening mesh, 13-second fixed frame, 14-first electric push rod, 15-first connecting rod, 16-elastic rope, 17-reinforcing ring, 18-third fixed frame, 19-second electric push rod, 20-second connecting rod, 21-baffle plate, 22-second crushing chamber, 23-fourth fixed frame, 24-second drive motor, 25-second rotating shaft, 26-crushing wheel, 27-gear. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figures 1 to 6 The PET preform production raw material crushing and mixing machine of this utility model includes a base plate 1, a support frame 2 fixedly connected to the base plate 1, a first crushing chamber 3 fixedly connected to the support frame 2, a feed pipe 4 fixedly connected to the first crushing chamber 3, a discharge pipe 5 fixedly connected to the first crushing chamber 3, an electric valve 6 installed on the discharge pipe 5, a first fixing frame 7 fixedly connected to the first crushing chamber 3, a first drive motor 8 fixedly installed on the first fixing frame 7, a first rotating shaft 9 connected to the output shaft of the first drive motor 8, the first rotating shaft 9 being rotatably connected to the first crushing chamber 3, a crushing blade 10 connected to the first rotating shaft 9 for crushing the raw materials, a screening chamber 11 fixedly connected to the base plate 1, a screening screen 12 rotatably connected to the screening chamber 11 for screening the raw materials, two second fixing frames 13 fixedly connected to the screening chamber 11, a first electric push rod 14 fixedly installed on the second fixing frame 13, the first electric push rod... A first connecting rod 15 is connected to the telescopic rod 14. An elastic rope 16 is connected between the first connecting rod 15 and the screening screen 12. The elastic rope 16 is slidably connected to the support frame 2. A third fixed frame 18 is fixedly connected to the base plate 1. A second electric push rod 19 is fixedly installed on the third fixed frame 18. A second connecting rod 20 is connected to the telescopic rod of the second electric push rod 19. A baffle plate 21 is connected to the second connecting rod 20. The baffle plate 21 is used to restrict the raw material from sliding out of the screening screen 12. A second crushing box 22 is fixedly connected to the base plate 1. A fourth fixed frame 23 is fixedly connected to the base plate 1. A second drive motor 24 is fixedly installed on the fourth fixed frame 23. Two second rotating shafts 25 are rotatably connected to the second crushing box 22. The second rotating shaft 25 near the fourth fixed frame 23 is connected to the output shaft of the second drive motor 24. A crushing wheel 26 is connected to the second rotating shaft 25. The crushing wheel 26 is used to crush unqualified raw materials. A gear 27 is connected to the second rotating shaft 26. The two gears 27 mesh.

[0020] Limiting blocks are fixedly connected to the screening box 11.

[0021] An installation ring is connected to the screening mesh plate 12.

[0022] A reinforcing ring 17 is fixedly connected to the support frame 2.

[0023] The working principle of this utility model is as follows: Raw materials are injected into the first crushing chamber through the feed pipe. Then, the first drive motor drives the first rotating shaft and the crushing blade to rotate, causing the crushing blade to crush the raw materials. After the raw materials are crushed, the electric valve is controlled to open the discharge pipe, and the crushed raw materials fall onto the screening screen plate of the screening chamber through the discharge pipe. Unqualified raw materials are blocked by the screening screen plate, while qualified raw materials slide out of the screening chamber, thereby achieving the screening of raw materials. After the raw materials are screened, the second electric push rod drives the second connecting rod and the blocking plate to move, causing the blocking plate to detach from the screening chamber. Then, the second drive motor drives the second rotating shaft, gears, and crushing wheel to rotate. The first electric push rod is controlled to move the first connecting rod, which pulls the elastic rope. The elastic rope causes the screening screen to rotate. Due to the tilting effect of the screen, the raw material on the screen slides into the second crushing chamber. The crushing wheel crushes the raw material a second time, thus ensuring the crushing effect. The crushed raw material slides out of the second crushing chamber. Then, the first electric push rod is controlled to move the first connecting rod in the opposite direction, which loosens the elastic rope. The screen gradually flips back to its original position. The second electric push rod moves the second connecting rod and the baffle plate in the opposite direction to their original position, so that the baffle plate restricts the screen.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material crushing and mixing machine for PET preform production, characterized in that: The raw material crushing and mixing machine for PET preform production includes a base plate, a support frame fixedly connected to the base plate, a first crushing chamber fixedly connected to the support frame, a feed pipe fixedly connected to the first crushing chamber, a discharge pipe fixedly connected to the first crushing chamber, an electric valve installed on the discharge pipe, a first fixed frame fixedly connected to the first crushing chamber, a first drive motor fixedly mounted on the first fixed frame, a first rotating shaft connected to the output shaft of the first drive motor, the first rotating shaft being rotatably connected to the first crushing chamber, and crushing blades connected to the first rotating shaft. A screening box is fixedly connected to the base plate, a screening screen plate rotatably connected to the screening box, and two second fixed frames fixedly connected to the screening box, each second fixed frame having a first electric pusher fixedly mounted on it. The system consists of a first electric push rod, a first connecting rod, an elastic rope connecting the first connecting rod to the screening screen, and a sliding connection between the elastic rope and the support frame. A third fixed frame is fixedly connected to the base plate, and a second electric push rod is fixedly mounted on the third fixed frame. A second connecting rod is connected to the second electric push rod, and a baffle plate is connected to the second connecting rod. A second crushing chamber is fixedly connected to the base plate, and a fourth fixed frame is fixedly connected to the base plate. A second drive motor is fixedly mounted on the fourth fixed frame. Two second rotating shafts are rotatably connected to the second crushing chamber. The second rotating shaft near the fourth fixed frame is connected to the output shaft of the second drive motor. Crushing wheels and gears are connected to the second rotating shafts, and the two gears mesh.

2. The raw material crushing and mixing machine for PET preform production according to claim 1, characterized in that: Limiting blocks are fixedly connected to the screening box.

3. The raw material crushing and mixing machine for PET preform production according to claim 1, characterized in that: The screening plate is connected to an installation ring.

4. The raw material crushing and mixing machine for PET preform production according to claim 1, characterized in that: The support frame is fixedly connected with reinforcing rings.

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