Raw material melting device for polyester bottle production

Abstract

This utility model relates to the field of polyester bottle technology and discloses a raw material melting device for polyester bottle production, including a heating box, a discharge pipe, and a stirring mechanism. The discharge pipe is installed on the lower right wall of the heating box, and the stirring mechanism is installed inside the heating box. A processing mechanism is installed on the upper left side of the heating box. The processing mechanism includes a storage box, a feed inlet, and an extrusion structure. The feed inlet is installed above the storage box, and two sets of extrusion structures are provided inside the storage box. Each extrusion structure includes extrusion rollers and connecting columns. Extrusion rollers are located on the left and right sides inside the storage box, and connecting columns are installed on the upper and lower sides of the extrusion rollers. This utility model refines raw material particles, improves subsequent melting efficiency, prevents raw material backflow during feeding, and avoids material accumulation and jamming.

Description

Technical Field

[0001] This utility model relates to the field of polyester bottle technology, specifically to a raw material melting device for polyester bottle production. Background Technology

[0002] Polyester bottles are plastic bottles made of PET. Due to their superior performance, relatively low cost, and environmental friendliness, they are in huge demand nowadays. In the production and processing process, the raw materials are often melted first, and then blow molding and other operations are carried out to form polyester bottles.

[0003] Existing raw material melting devices often require extrusion rollers to press the raw materials during melting. However, these extrusion rollers are mostly designed with a fixed spacing, which cannot adapt to raw materials with different particle sizes. Agglomerated raw materials are not fully broken down, and fine particles stick to the rollers due to excessive extrusion, resulting in large differences in the particle size of the raw materials after extrusion. During subsequent melting, unmelted particles or local overheating are likely to occur, affecting the strength and transparency of the bottle. Raw materials are also prone to accumulation in certain areas after extrusion, leading to feed interruption or flow fluctuation. To address these issues, we propose a raw material melting device for polyester bottle production. Utility Model Content

[0004] The purpose of this invention is to provide a raw material melting device for polyester bottle production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a raw material melting device for polyester bottle production, comprising a heating box, a discharge pipe and a stirring mechanism, wherein the discharge pipe is installed on the lower right wall of the heating box, the stirring mechanism is installed inside the heating box, and a processing mechanism is installed on the upper left side of the heating box;

[0006] The processing mechanism includes a storage box, a feed inlet, and an extrusion structure. The feed inlet is installed at the top of the storage box. Two sets of extrusion structures are located inside the storage box. Each extrusion structure includes extrusion rollers and connecting columns. Extrusion rollers are located on the left and right sides inside the storage box. Connecting columns are installed on the top and bottom sides of the extrusion rollers. The lower connecting column is connected to the inner wall of the storage box via a first bearing. The upper left connecting column passes through a first sealing gasket and is connected to the inner wall of the storage box via a second bearing. The upper right connecting column passes through a first sealing gasket and a second sealing gasket and is connected to the output end of a motor. The second sealing gasket is located inside the storage box. The first sealing gasket is located on both sides inside a partition. The outer wall of the partition is connected to the inner wall of the storage box. A gear is installed above the outer wall of the upper connecting column. A fixing plate is installed above the upper set of extrusion structures. The outer wall of the fixing plate is connected to the inner wall of the storage box. A first baffle is located at the bottom of the fixing plate. Connecting plates are installed on both sides below the two sets of extrusion structures. A second baffle is installed at the bottom of the upper connecting plate. A fixing groove is located between the lower two connecting plates.

[0007] Preferably, the heating box and the discharge pipe are fixedly connected, and the heating box and the storage box are fixedly connected.

[0008] Preferably, the storage tank and the feed inlet are integrated, and the feed inlet and the two side extrusion rollers are on the same horizontal line.

[0009] Preferably, the inner wall of the storage box is fixedly connected to the outer wall of the fixing plate, the outer wall of the connecting plate, and the outer wall of the partition.

[0010] Preferably, the extrusion roller and the connecting column are fixedly connected, and the connecting column below is rotatably connected to the first bearing.

[0011] Preferably, the connecting column on the upper left is rotatably connected to the second bearing, and the connecting column on the upper right is fixedly connected to the output end of the motor.

[0012] Preferably, the outer walls of the two upper connecting columns are fixedly connected to the gears, while the gears on both sides are meshed together.

[0013] Preferably, the fixing plate and the first baffle are tightly fitted together, and the first baffle is correspondingly fitted to the upper two side extrusion rollers.

[0014] Preferably, the connecting plate above and the second baffle are tightly fitted together, and the second baffle is correspondingly positioned with respect to the two lower extrusion rollers.

[0015] Preferably, the upper part of the connecting plate is sloped, the first baffle and the second baffle are both made of rubber, and the distance between the two upper extrusion rollers is greater than the distance between the two lower extrusion rollers.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] By setting up a storage tank, a feed inlet, and an extrusion structure, the raw material enters the storage tank through the feed inlet. The motor drives the upper right connecting column to rotate, which in turn drives the upper left connecting column to rotate synchronously through gear meshing. This, in turn, drives the two extrusion rollers on the left and right to rotate. The two upper extrusion rollers are spaced further apart, so larger raw materials are coarsely extruded and initially refined. The two lower extrusion rollers are spaced further apart, which further refines the raw material particles and improves the subsequent melting efficiency. During the feeding process, the first rubber baffle at the bottom of the fixed plate and the second rubber baffle at the bottom of the connecting plate correspond to the upper and lower extrusion rollers respectively to prevent the raw material from flowing back. They can also remove the raw material adhering to the outer wall of the extrusion rollers to the top of the connecting plate. The connecting plate adopts a slope design, so the extruded raw material falls smoothly into the heating box along the slope, avoiding accumulation and jamming.

[0018] After the raw materials enter the heating chamber, the heating chamber heats the raw materials through the heating pipes on the outer wall, melting them into a liquid state. The stirring mechanism inside the heating chamber is then activated to rotate and stir the molten raw materials evenly, ensuring that there are no lumps or unmelted particles. The uniformly molten raw materials are discharged through the discharge pipe at the bottom right wall of the heating chamber for subsequent blow molding of polyester bottles. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a frontal cross-sectional view of the present invention.

[0021] Figure 2 This is a partially enlarged structural schematic diagram of the processing mechanism of this utility model;

[0022] Figure 3 This is a partial cross-sectional structural diagram of the processing mechanism of this utility model;

[0023] Figure 4 This is a top view cross-sectional structural diagram of the processing mechanism of this utility model.

[0024] In the diagram: 1. Heating box; 2. Discharge pipe; 3. Stirring mechanism; 4. Processing mechanism; 401. Storage box; 402. Feed inlet; 403. Extrusion roller; 404. Connecting column; 405. First bearing; 406. First sealing gasket; 407. Second bearing; 408. Second sealing gasket; 409. Motor; 410. Gear; 411. Partition plate; 412. Fixing plate; 413. First baffle; 414. Connecting plate; 415. Second baffle; 417. Fixing groove. Detailed Implementation

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution for a raw material melting device for polyester bottle production: a raw material melting device for polyester bottle production includes a heating box 1, a discharge pipe 2 and a stirring mechanism 3. The discharge pipe 2 is installed on the lower right wall of the heating box 1, the stirring mechanism 3 is installed inside the heating box 1, and the processing mechanism 4 is installed on the upper left side of the heating box 1.

[0028] The processing mechanism 4 includes a storage tank 401, a feed inlet 402, and an extrusion structure. The feed inlet 402 is installed on the top of the storage tank 401. The storage tank 401 has two sets of extrusion structures inside. The extrusion structure includes extrusion rollers 403 and connecting columns 404. Extrusion rollers 403 are located on the left and right sides inside the storage tank 401. Connecting columns 404 are installed on the upper and lower sides of the extrusion rollers 403. The lower connecting column 404 is connected to the inner wall of the storage tank 401 through a first bearing 405. The upper left connecting column 404 passes through a first sealing gasket 406 and is connected to the inner wall of the storage tank 401 through a second bearing 407. The upper right connecting column 404 passes through the first sealing gasket 406 and the second sealing gasket 408 and is connected to the output of the motor 409. The ends are connected to prevent raw material particles from entering the components and extend the service life of the transmission components. The second sealing gasket 408 is located inside the storage box 401, and the first sealing gasket 406 is located on both sides inside the partition 411. The outer wall of the partition 411 is connected to the inner wall of the storage box 401. A gear 410 is installed above the outer wall of the upper connecting column 404. A fixing plate 412 is installed above the upper set of extrusion structures. The outer wall of the fixing plate 412 is connected to the inner wall of the storage box 401. A first baffle 413 is provided at the bottom of the fixing plate 412. Connecting plates 414 are installed on both sides below the two sets of extrusion structures. A second baffle 415 is installed at the bottom of the upper connecting plate 414. A fixing groove 417 is provided between the lower two connecting plates 414.

[0029] The heating box 1 and the discharge pipe 2 are fixedly connected, and the heating box 1 and the storage box 401 are fixedly connected.

[0030] The storage box 401 and the feed inlet 402 are integrated, and the feed inlet 402 and the two side extrusion rollers 403 are on the same horizontal line.

[0031] The inner wall of the storage box 401 is fixedly connected to the outer wall of the fixing plate 412, the outer wall of the connecting plate 414, and the outer wall of the partition 411.

[0032] The extrusion roller 403 is fixedly connected to the connecting column 404, while the lower connecting column 404 is rotatably connected to the first bearing 405.

[0033] The upper left connecting column 404 is rotatably connected to the second bearing 407, while the upper right connecting column 404 is fixedly connected to the output end of the motor 409.

[0034] The outer walls of the two upper connecting columns 404 are fixedly connected to the gears 410, and the gears 410 on both sides are meshed to ensure that the left and right extrusion rollers rotate synchronously and avoid uneven extrusion caused by speed difference.

[0035] The fixed plate 412 and the first baffle 413 are tightly fitted together, and the first baffle 413 is correspondingly set with the upper two side extrusion rollers 403.

[0036] The upper connecting plate 414 and the second baffle 415 are tightly fitted together, and the second baffle 415 is correspondingly set with the two lower extrusion rollers 403.

[0037] The upper part of the connecting plate 414 is set with a slope to solve the problem of the material falling poorly and ensure the continuity of feeding. The first baffle 413 and the second baffle 415 are both made of rubber. The distance between the two upper extrusion rollers 403 is greater than the distance between the two lower extrusion rollers 403.

[0038] Working principle:

[0039] First, the raw material enters the storage box 401 through the feed port 402. The motor 409 drives the upper right connecting column 404 to rotate. Through the meshing of the gear 410, the upper left connecting column 404 rotates synchronously, which in turn drives the two left and right extrusion rollers 403 to rotate. The two upper extrusion rollers 403 are spaced further apart, so the larger raw materials are coarsely extruded and initially refined. The two lower extrusion rollers 403 are spaced further apart, so the raw material particles are further refined, which improves the subsequent melting efficiency. During the feeding process, the rubber first baffle 413 at the bottom of the fixed plate 412 and the rubber second baffle 415 at the bottom of the connecting plate 414 correspond to the upper and lower extrusion rollers 403 respectively to prevent the raw material from flowing back. The raw material adhering to the outer wall of the extrusion rollers 403 can be removed to the top of the connecting plate 414. The connecting plate 414 adopts a slope design, so the extruded raw material falls smoothly into the heating box 1 along the slope, avoiding accumulation and jamming.

[0040] After the raw material enters the heating box 1, the heating box 1 heats the raw material through the heating tube on the outer wall, melting it into a liquid state. The stirring mechanism 3 inside the heating box 1 is then activated to rotate and stir the molten raw material evenly, ensuring that there are no lumps or unmelted particles. The evenly molten raw material is discharged through the discharge pipe 2 at the bottom right wall of the heating box 1 for subsequent blow molding of polyester bottles.

[0041] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material melting device for polyester bottle production, comprising a heating box (1), a discharge pipe (2), and a stirring mechanism (3), characterized in that: A discharge pipe (2) is installed on the lower right wall of the heating box (1), a stirring mechanism (3) is installed inside the heating box (1), and a processing mechanism (4) is installed on the left side above the heating box (1). The processing mechanism (4) includes a storage box (401), a feed inlet (402), and an extrusion structure. The feed inlet (402) is installed on the top of the storage box (401). The storage box (401) is equipped with two sets of extrusion structures. The extrusion structure includes an extrusion roller (403) and a connecting column (404). The left and right sides of the storage box (401) are equipped with extrusion rollers (403). The upper and lower sides of the extrusion rollers (403) are equipped with connecting columns (404). The lower connecting column (404) is connected to the inner wall of the storage box (401) through a first bearing (405). The upper left connecting column (404) passes through a first sealing gasket (406) and is connected to the inner wall of the storage box (401) through a second bearing (407). The upper right connecting column (404) passes through the first sealing gasket (406) and the second sealing gasket (407). 08) Connected to the output end of the motor (409), the second sealing gasket (408) is located inside the storage box (401), the first sealing gasket (406) is located on both sides inside the partition (411), the outer wall of the partition (411) is connected to the inner wall of the storage box (401), a gear (410) is installed on the upper part of the outer wall of the upper connecting column (404), a fixing plate (412) is installed on the upper part of the upper set of extrusion structures, the outer wall of the fixing plate (412) is connected to the inner wall of the storage box (401), a first baffle (413) is provided at the bottom of the fixing plate (412), a connecting plate (414) is installed on both sides below the two sets of extrusion structures, a second baffle (415) is installed at the bottom of the upper connecting plate (414), and a fixing groove (417) is provided between the lower two connecting plates (414).

2. The raw material melting device for polyester bottle production according to claim 1, characterized in that: The heating box (1) is fixedly connected to the discharge pipe (2), and the heating box (1) is fixedly connected to the storage box (401).

3. The raw material melting device for polyester bottle production according to claim 2, characterized in that: The storage tank (401) and the feed inlet (402) are integrated, and the feed inlet (402) and the two side extrusion rollers (403) are on the same horizontal line.

4. The raw material melting device for polyester bottle production according to claim 3, characterized in that: The inner wall of the storage box (401) is fixedly connected to the outer wall of the fixing plate (412), the outer wall of the connecting plate (414), and the outer wall of the partition (411).

5. The raw material melting device for polyester bottle production according to claim 4, characterized in that: The extrusion roller (403) is fixedly connected to the connecting column (404), and the connecting column (404) is rotatably connected to the first bearing (405).

6. The raw material melting device for polyester bottle production according to claim 5, characterized in that: The connecting column (404) on the upper left is rotatably connected to the second bearing (407), and the connecting column (404) on the upper right is fixedly connected to the output end of the motor (409).

7. The raw material melting device for polyester bottle production according to claim 6, characterized in that: The outer walls of the two connecting columns (404) at the top are fixedly connected to the gears (410), and the gears (410) on both sides are meshed together.

8. The raw material melting device for polyester bottle production according to claim 7, characterized in that: The fixing plate (412) and the first baffle (413) are tightly fitted together, and the first baffle (413) is correspondingly fitted to the upper two side extrusion rollers (403).

9. A raw material melting device for polyester bottle production according to claim 8, characterized in that: The connecting plate (414) above and the second baffle (415) are tightly fitted together, and the second baffle (415) is correspondingly fitted to the two extrusion rollers (403) below.

10. A raw material melting device for polyester bottle production according to claim 9, characterized in that: The upper part of the connecting plate (414) is set with a slope. The first baffle (413) and the second baffle (415) are both made of rubber. The distance between the two upper extrusion rollers (403) is greater than the distance between the two lower extrusion rollers (403).

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