Double-screw-pipe feeding device for plastic barrel production

By designing a double-screw feeding device including a splicing box and a motor-driven material transfer rod, the existing device's problems in double-screw feeding and cleaning and maintenance are solved, and the plastic raw materials are preheated through the heating device, the quality of injection molding and the smoothness of material transfer are improved.

CN222920921UActive Publication Date: 2025-05-30CHENGDU CHANGSHENG PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202421756431.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-05-30
Estimated Expiration
2034-07-24

AI Technical Summary

Technical Problem

The existing feeding device for plastic barrel production is inconvenient for double-tube feeding during use, which affects the normal processing of the double-layer plastic barrel; the feeding box structure is an integral box, making it difficult to follow-up cleaning and maintenance; the temperature of the plastic raw materials may decrease during the transmission process, affecting injection molding.

Method used

A double-screw feeding device is designed, including a spliced ​​front-end box and rear-end box, which is fixed by bolts to facilitate cleaning; a motor-driven material transfer rod system realizes automatic transmission of plastic raw materials; the heating cylinder is combined with the liquid storage box, and the plastic raw materials are preheated through the water pump and heating components.

Benefits of technology

The normal processing of double-layer plastic barrels is achieved, which reduces the difficulty of cleaning and maintenance of the feed box, and improves the quality of injection molding and the smoothness of material transfer by preheating plastic raw materials.

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    Figure CN222920921U_ABST
Patent Text Reader

Abstract

The utility model discloses a double solenoid feeding device for plastic bucket production, which comprises a feeding box, the feeding box is connected with a feeding cylinder, the feeding box comprises a front-end box body and a rear-end box body which are spliced, the contact ends of the front-end box body and the rear-end box body are respectively provided with a connecting outer ring, a plurality of bolts are connected between the connecting outer rings on the two sides, the front-end box body is connected with a motor, and the motor is connected with the feeding cylinder. The output end of the motor is connected with a first material conveying rod, the outer wall of a shaft body at the end of the first material conveying rod is connected with a driving gear, the driving gear is connected with a driven gear through a transmission belt, the inner wall of the driven gear is connected with a second material conveying rod, the two ends of the rear-end box body are connected with discharging cylinders, and the inner wall of the rear-end box body is provided with conical protrusions. The ends of the first material conveying rod and the second material conveying rod are rotationally connected to the corresponding rotating grooves of the rear end box body, the outer wall of the front end box body is connected with a heating cylinder matched with the front end box body in shape in an attached mode, the heating cylinder is provided with a heating cavity, and the two sides of the heating cylinder are connected with a liquid inlet pipe and a liquid outlet pipe respectively.
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Description

Technical Field

[0001] The utility model belongs to the technical field of plastic bucket processing devices, and particularly relates to a double-solenoid tube feeding device for plastic bucket production. Background Art

[0002] The materials of plastic buckets are mostly made of plastics such as polyethylene and polypropylene by blow molding and injection molding. Most of them are used for the outer packaging of items and can play a role in storing items. During the processing of plastic buckets, a feeding device is required.

[0003] However, the existing feeding devices for plastic bucket production have the following problems: 1. During the use of the device, it is not convenient for double-tube feeding, which affects the normal processing of double-layer plastic buckets; 2. In order to ensure the purity of the plastic in the feeding box before injection molding, the feeding box is generally set as an integral box structure, resulting in the problem of difficult subsequent cleaning and maintenance of the feeding box; 3. The plastic needs to be preheated in the storage box before injection molding to facilitate better injection molding in the later stage. However, when the environmental temperature is low, the temperature of the plastic raw material will decrease during the feeding transmission process, affecting the subsequent injection molding and feeding smoothness. Summary of the Utility Model

[0004] Aiming at the problems raised in the above background art, the purpose of the present utility model is to provide a double-solenoid tube feeding device for plastic bucket production.

[0005] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0006] A double-solenoid tube feeding device for plastic bucket production, including a feeding box, the feeding box is connected with a feeding cylinder, the feeding box includes a spliced front-end box body and a rear-end box body, connection outer rings are provided at the contact ends of the front-end box body and the rear-end box body, a plurality of bolts are connected between the two connection outer rings, the front-end box body is connected with a motor, the output end of the motor is connected with a first feeding rod, an active gear is connected to the outer wall of the shaft body at the end of the first feeding rod, the active gear is connected with a driven gear through a transmission belt, the inner wall of the driven gear is connected with a second feeding rod, discharge cylinders are connected to both ends of the rear-end box body, a conical protrusion is provided on the inner wall of the rear-end box body, and the ends of the first feeding rod and the second feeding rod are rotatably connected to the corresponding rotation grooves of the rear-end box body;

[0007] A heating cylinder with a matching shape is attached to the outer wall of the front-end box body. The heating cylinder is provided with a heating cavity. An inlet pipe and an outlet pipe are respectively connected to both sides of the heating cylinder. Electric valves are connected to both the inlet pipe and the outlet pipe. The inlet pipe and the outlet pipe are respectively connected to the inlet end and the outlet end of an external liquid storage box. A water pump and a heating component are provided in the external liquid storage box.

[0008] Further defined, both ends of the feeding box are semicircular arc-shaped, and the feeding cylinder is funnel-shaped. Such a structural design can facilitate the rapid cleaning of the inner wall in the later stage.

[0009] Further defined, the front end box body is provided with a slot, and the rear end box body is provided with a matching insertion block inserted into the slot. Such a structural design achieves the effect of strengthening the connection and sealing between the front end box body and the rear end box body.

[0010] Further defined, the outer wall of the feeding box is provided with a plurality of arc-shaped grooves. Such a structural design can increase the heat exchange area of the outer wall of the feeding box and improve the heating efficiency.

[0011] Further defined, both the first material conveying rod and the second material conveying rod include a transmission rod. An installation cylinder is sleeved on the transmission rod, and a spiral material conveying belt is arranged on the outer wall of the installation cylinder. A screw rod is connected between the transmission rod and the installation cylinder. Such a structural design can facilitate the installation and disassembly of the first material conveying rod and the second material conveying rod, and is convenient for the later maintenance and replacement of relevant components.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The feeding box in the present utility model includes a front end box body and a rear end box body spliced together and fixed by a plurality of bolts. Before cleaning is required, the bolts are removed, and then the splicing place of the front end box body and the rear end box body is separated, achieving the effect of reducing the cleaning difficulty of the feeding box and related internal components;

[0014] 2. Among them, the motor serves as the power end, driving the first material conveying rod and the second material conveying rod to rotate to automatically convey and feed the plastic raw materials to the end of the discharge cylinder;

[0015] 3. When the environmental temperature is relatively low, before starting the motor to drive the first material conveying rod and the second material conveying rod to convey materials, the water pump and the heating component in the external liquid storage box are started, and the heating cavity is filled with heated liquid. The heated liquid in the heating cavity exchanges heat with the feeding box, so that the temperature inside the feeding box is automatically increased, achieving the preheating during the process of conveying and feeding the plastic raw materials, facilitating the improvement of the smoothness of material conveying and the quality of subsequent production and injection molding. Description of the Drawings

[0016] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0017] Figure 1 It is a schematic transverse sectional view of the overall structure of an embodiment of a double-screw tube feeding device for plastic bucket production according to the present utility model;

[0018] Figure 2 It is a schematic longitudinal sectional view of the structure of the feeding box in an embodiment of a double-screw tube feeding device for plastic bucket production according to the present utility model.

[0019] Descriptions of main component symbols are as follows:

[0020] Feeding box 1, arc-shaped groove 1001, feeding cylinder 101, front-end box body 102, rear-end box body 103, discharging cylinder 1031, conical protrusion 1032, insertion block 1033, connecting outer ring 104, bolt 105;

[0021] Motor 2;

[0022] First material conveying rod 3, driving gear 301, transmission belt 302, driven gear 303;

[0023] Second material conveying rod 4, transmission rod 401, mounting cylinder 402, spiral material conveying belt 403, screw rod 404;

[0024] Heating cylinder 5, heating chamber 501, liquid inlet pipe 502, liquid outlet pipe 503. Specific implementation manners

[0025] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] As Figure 1-2 shown, a double-screw tube feeding device for plastic bucket production of the present utility model includes a feeding box 1. The feeding box 1 is connected with a feeding cylinder 101. The feeding box 1 includes a spliced front-end box body 102 and a rear-end box body 103. Connecting outer rings 104 are provided at the contact ends of the front-end box body 102 and the rear-end box body 103. A plurality of bolts 105 are connected between the two connecting outer rings 104. The front-end box body 102 is connected with a motor 2. The output end of the motor 2 is connected with a first material conveying rod 3. The outer wall of the shaft body at the end of the first material conveying rod 3 is connected with a driving gear 301. The driving gear 301 is connected with a driven gear 303 through a transmission belt 302. The inner wall of the driven gear 303 is connected with a second material conveying rod 4. Discharging cylinders 1031 are connected to both ends of the rear-end box body 103. A conical protrusion 1032 is provided on the inner wall of the rear-end box body 103. The ends of the first material conveying rod 3 and the second material conveying rod 4 are rotatably connected to the corresponding rotating grooves of the rear-end box body 103;

[0027] The outer wall of the front-end box body 102 is adhesively connected with a heating cylinder 5 with a matching shape. The heating cylinder 5 is provided with a heating chamber 501. A liquid inlet pipe 502 and a liquid outlet pipe 503 are respectively connected to both sides of the heating cylinder 5. Electric valves are connected to both the liquid inlet pipe 502 and the liquid outlet pipe 503. The liquid inlet pipe 502 and the liquid outlet pipe 503 are respectively connected to the liquid inlet end and the liquid outlet end of an external liquid storage box. A water pump and a heating component are provided in the external liquid storage box.

[0028] In the embodiment of this case, the plastic raw material enters the feed box 1 from the original storage box through the feed cylinder 101. Then, the motor 2 is turned on. The motor 2 drives the first material transfer rod 3 at the output end to rotate. When the first material transfer rod 3 rotates, it drives the driving gear 301 to rotate. When the driving gear 301 rotates, it drives the driven gear 303 to rotate through the transmission belt 302. When the driven gear 303 rotates, it drives the second material transfer rod 4 to rotate simultaneously. At this time, the rotating first material transfer rod 3 and the second material transfer rod 4 automatically transfer the plastic raw material from the feed end to the two discharge cylinders 1031. After discharging, the automatic material transfer is carried out for subsequent processing. The conical protrusions 1032 on the inner wall of the rear-end box body 103 can prevent material accumulation and jamming during side-wall discharging, improving the discharging efficiency. When it is necessary to clean the inner wall of the feed box 1, the first material transfer rod 3, and the second material transfer rod 4, the bolts 105 between the front-end box body 102 and the rear-end box body 103 are disassembled, and then the joint between the front-end box body 102 and the rear-end box body 103 is separated. Such a structural design can achieve the effect of reducing the cleaning difficulty of the feed box 1 and related internal components;

[0029] It should be noted that when the environmental temperature is relatively low, before turning on the motor 2 to drive the first material transfer rod 3 and the second material transfer rod 4 to transfer materials, turn on the water pump and the heating component in the external liquid storage box. The heating component heats the liquid in the external liquid storage box to a certain temperature, and then the water pump transfers the heated liquid to the heating chamber 501 of the heating cylinder 5 through the liquid inlet pipe 502. At this time, the electric valve of the liquid outlet pipe 503 is in a closed state until the heating chamber 501 is filled with the heated liquid. The heated liquid in the heating chamber 501 exchanges heat with the feed box 1, enabling the feed box 1 to automatically increase its temperature, achieving preheating during the transfer and feeding of the plastic raw material, facilitating the improvement of the smoothness of material transfer and the quality of subsequent production and injection molding.

[0030] Preferably, both ends of the feed box 1 are semicircularly arc-shaped, and the feed cylinder 101 is funnel-shaped. Such a structural design can facilitate the rapid cleaning of the inner wall in the later stage. In fact, other structural shapes that are convenient for cleaning the inner wall of the feed box 1 can also be specifically considered according to the specific situation.

[0031] Preferably, the front-end box body 102 is provided with a slot, and the rear-end box body 103 is provided with a matching insertion block 1033 inserted into the slot. Such a structural design achieves the effect of strengthening the connectivity and sealing performance between the front-end box body 102 and the rear-end box body 103. In fact, other structural shapes that can strengthen the connection and sealing performance can also be specifically considered according to the specific situation.

[0032] Preferably, a plurality of arc-shaped grooves 1001 are provided on the outer wall of the feed box 1. Such a structural design can increase the heat exchange area of the outer wall of the feed box 1 and improve the heating efficiency. In fact, other structural shapes that can enhance the heat exchange efficiency can also be specifically considered according to the specific situation.

[0033] Preferably, both the first material conveying rod 3 and the second material conveying rod 4 include a transmission rod 401. An installation cylinder 402 is sleeved on the transmission rod 401. A spiral material conveying belt 403 is provided on the outer wall of the installation cylinder 402. A screw rod 404 is connected between the transmission rod 401 and the installation cylinder 402. Such a structural design can facilitate the installation and disassembly of the first material conveying rod 3 and the second material conveying rod 4, and is convenient for the later maintenance and replacement of related components. In fact, other structural shapes that are convenient for the later maintenance and replacement of components can also be specifically considered according to specific situations.

[0034] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A double-screw feeding device for producing plastic barrels, comprising a feeding box (1), wherein the feeding box (1) is connected to a feeding cylinder (101), characterized in that: The feed box (1) comprises a front box body (102) and a rear box body (103) which are spliced ​​together. The contact ends of the front box body (102) and the rear box body (103) are both provided with connecting outer rings (104). A plurality of bolts (105) are connected between the connecting outer rings (104) on both sides. The front box body (102) is connected to a motor (2). The output end of the motor (2) is connected to a first material transfer rod (3). The outer wall of the shaft body at the end of the first material transfer rod (3) is connected to an active gear (301), the driving gear (301) is connected to a driven gear (303) via a transmission belt (302), the inner wall of the driven gear (303) is connected to a second material transfer rod (4), both ends of the rear end box (103) are connected to a discharge barrel (1031), the inner wall of the rear end box (103) is provided with a conical protrusion (1032), and the ends of the first material transfer rod (3) and the second material transfer rod (4) are rotatably connected to the corresponding rotation grooves of the rear end box (103); The outer wall of the front end box body (102) is fitted with a heating tube (5) of matching shape, the heating tube (5) is provided with a heating chamber (501), and the two sides of the heating tube (5) are respectively connected with a liquid inlet pipe (502) and a liquid outlet pipe (503), the liquid inlet pipe (502) and the liquid outlet pipe (503) are both connected with an electric valve, the liquid inlet pipe (502) and the liquid outlet pipe (503) are respectively connected to the liquid inlet end and the liquid outlet end of the external liquid storage box, and the external liquid storage box is provided with a water pump and a heating component.

2. The double screw feeding device for plastic barrel production according to claim 1, characterized in that: The two ends of the feed box (1) are arranged in a semicircular arc shape, and the feed cylinder (101) is arranged in a bucket shape.

3. The double screw feeding device for plastic barrel production according to claim 2, characterized in that: The front box (102) is provided with a slot, and the rear box (103) is provided with a matching plug-in block (1033) plugged into the slot.

4. A double screw feeding device for plastic barrel production according to claim 3, characterized in that: The outer wall of the feed box (1) is provided with a plurality of arc-shaped grooves (1001).

5. The double screw feeding device for plastic barrel production according to claim 4, characterized in that: The first material transfer rod (3) and the second material transfer rod (4) both comprise a transmission rod (401), the transmission rod (401) being sleeved with a mounting tube (402), the outer wall of the mounting tube (402) being provided with a spiral material transfer belt (403), and a screw rod (404) being connected between the transmission rod (401) and the mounting tube (402).