A refrigerator insulation material volume reduction extrusion device

Abstract

The utility model discloses a kind of refrigerator heat-insulating material volume reduction extruding device, it is related to heat-insulating material recycling field, to solve the problem of higher transportation cost to broken heat-insulating material in prior art, although volume is smaller after breaking, but space occupancy increases, leading to. Primary compression conveying pipe is rotatably connected with variable pitch helical blade inside, one side of primary compression conveying pipe is fixedly connected with compression box, the compression box is provided with pressing plate in inside upper end, the lower end of the end face of the side of the compression box away from primary compression conveying pipe is provided with discharge port, the side of the compression box away from primary compression conveying pipe is fixedly connected with rectangular support frame, the lower end in rectangular support frame inside and outside discharge port is provided with discharge baffle, adopt two-stage compression structure design, first through helical conveying pre-compression, then utilize hydraulic device to carry out final compression, effectively reduce the volume of heat-insulating material.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation material recycling, specifically a refrigerator thermal insulation material volume reduction and extrusion device. Background Technology

[0002] Refrigerator insulation materials are primarily used to insulate against heat exchange between the inside and outside of the refrigerator. The core requirements are low thermal conductivity, environmental friendliness, and durability. Traditional refrigerators mostly use polyurethane foam, which is filled into the cabinet through a foaming process. This offers advantages such as lightweight, low cost, and good adhesion, but some fluorinated foaming agents may have environmental impacts. Newer environmentally friendly materials such as cyclopentane-foamed polyurethane and vacuum insulation panels are becoming increasingly popular, but they are more expensive. Some high-end models use graphene-reinforced foam or aerogel to improve performance. After existing refrigerators are disassembled, their internal insulation materials need to be processed and recycled using specialized equipment.

[0003] For example, patent announcement number CN208800175U discloses a crushing device for recycling waste insulation materials, including a casing, a conical crushing roller, a second motor, a fixed plate, a discharge port, and support feet. The casing has a feed inlet on its upper side and a crushing roller inside. A first motor is connected to the crushing roller via a first rotating shaft, and a second rotating shaft is located on the bottom side of the conical crushing roller. The second motor is also connected to the conical crushing roller via the second rotating shaft. The fixed plate has crushing teeth on its inner side. The discharge port is located on the bottom side of the casing, and a hollow cylinder is located at the bottom of the support feet. A baffle is located inside the hollow cylinder, and a spring is located on the upper side of the baffle. The upper end of the spring is connected to the bottom side of the support feet, and the support feet are connected to the hollow cylinder via the spring. This crushing device for recycling waste insulation materials uses two crushing rollers, allowing large-volume insulation materials to be crushed into smaller-volume materials, facilitating secondary crushing.

[0004] However, although the volume of the insulation material decreases after it is broken, the space it occupies increases, resulting in higher transportation costs for the broken insulation material. Therefore, there is an urgent need in the market to develop a volume reduction and extrusion device for refrigerator insulation materials to help people solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a refrigerator insulation material volume reduction and extrusion device to solve the problem mentioned in the background art that although the volume of the insulation material decreases after crushing, the space occupied increases, resulting in high transportation costs for the crushed insulation material.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator insulation material volume reduction and extrusion device, comprising a primary compression conveying pipe, a variable pitch spiral blade rotatably connected inside the primary compression conveying pipe, a compression box fixedly connected to one side of the primary compression conveying pipe, a pressure plate provided at the upper end of the compression box, a discharge port provided at the lower end of the side face of the compression box away from the primary compression conveying pipe, a rectangular support frame fixedly connected to the side of the compression box away from the primary compression conveying pipe, a discharge baffle provided at the lower end of the rectangular support frame and outside the discharge port, a rectangular opening provided at the lower end of the side face of the compression box adjacent to the primary compression conveying pipe, a storage box fixedly connected outside the rectangular opening and on the side face of the compression box, and a pusher plate provided inside the storage box.

[0007] Preferably, a feeding pipe is fixedly connected to one side of the upper end of the primary compression conveying pipe, and multiple heating plates are fixedly connected in a ring array at equal intervals on the outer wall of the primary compression conveying pipe.

[0008] Preferably, a drive device is fixedly connected to the end face of the primary compression conveying pipe away from the compression box, a drive motor is fixedly installed inside the drive device, a rotating shaft is fixedly connected to the middle of the variable pitch spiral blade, and one end of the rotating shaft extends into the drive device and is fixedly connected to the output shaft of the drive motor.

[0009] Preferably, a circular feed port is provided on one end face of the compression box at the connection with the primary compression conveying pipe, and a first hydraulic rod is fixedly connected to the middle of the upper end face of the compression box. The lower end of the telescopic end of the first hydraulic rod extends into the interior of the compression box and is fixedly connected to the middle of the upper end of the pressure plate.

[0010] Preferably, a strip-shaped opening is provided on the upper surface of the compression box adjacent to the primary compression conveying pipe, and a side sealing plate is fixedly connected to the upper surface of the pressure plate adjacent to the circular feed port, with the upper end of the side sealing plate extending out of the upper surface of the compression box along the strip-shaped opening.

[0011] Preferably, the rectangular support frame has strip grooves on both the front and rear ends, the discharge baffle is inserted into the two strip grooves at the front and rear ends respectively, an electrically controlled telescopic rod is fixedly connected to the middle of the upper end of the rectangular support frame, a connecting rod is fixedly connected to the middle of the upper end of the discharge baffle, and the lower end of the telescopic rod passes through the upper end of the rectangular support frame and is fixedly connected to the upper end of the connecting rod.

[0012] Preferably, a second hydraulic rod is fixedly connected to the middle of the side face of the storage box away from the compression box, and the telescopic end of the second hydraulic rod passes through the side face of the storage box and is fixedly connected to the middle of the side face of the pusher plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, a two-stage compression structure design is adopted. First, the material is pre-compressed by a screw conveyor, and then the final compression is carried out by a hydraulic device, which effectively reduces the volume of the insulation material.

[0015] (2) In this utility model, the pre-compression and heat setting treatment of the insulation material are achieved through the synergistic effect of the variable pitch spiral blade and the heating plate, which effectively reduces the resilience of the material and creates favorable conditions for the subsequent compression process.

[0016] (3) In this utility model, an innovative linkage mechanism between the side sealing plate and the discharge baffle is set up to realize the automatic connection of the feeding, compression and discharge processes, which not only improves production efficiency, but also avoids material backflow and jamming. Attached Figure Description

[0017] Figure 1 This is a front view of a refrigerator insulation material volume reduction extrusion device according to the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a top sectional view of the storage box of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Primary compression conveying pipe; 101. Feeding pipe; 102. Heating plate; 2. Variable pitch spiral blades; 201. Rotating shaft; 3. Drive device; 301. Drive motor; 4. Compression box; 401. Circular feed port; 402. Discharge port; 403. Rectangular opening; 404. Strip opening; 405. First hydraulic rod; 5. Pressure plate; 501. Side sealing plate; 6. Rectangular support frame; 601. Strip chute; 602. Discharge baffle; 603. Connecting rod; 604. Electrically controlled telescopic rod; 7. Storage box; 701. Push plate; 702. Second hydraulic rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a refrigerator insulation material volume reduction and extrusion device, comprising a primary compression conveying pipe 1, a variable pitch helical blade 2 rotatably connected inside the primary compression conveying pipe 1, a feeding pipe 101 fixedly connected to one side of the upper end of the primary compression conveying pipe 1, a plurality of heating plates 102 fixedly connected in an equally spaced annular array on the outer wall of the primary compression conveying pipe 1, a driving device 3 fixedly connected to the end face of the primary compression conveying pipe 1 away from the compression box 4, a driving motor 301 fixedly installed inside the driving device 3, a rotating shaft 201 fixedly connected to the middle of the variable pitch helical blade 2, one end of the rotating shaft 201 extending into the driving device 3 and connecting with the driving motor 3. The output shaft of the drive motor 301 is fixedly connected, and a compression box 4 is fixedly connected to one side of the primary compression conveying pipe 1. The crushed insulation material particles are added into the primary compression conveying pipe 1 through the feeding pipe 101. The drive motor 301 drives the rotating shaft 201 to rotate, which in turn drives the variable pitch spiral blade 2 to rotate and convey the insulation material particles to the compression box 4. The insulation material particles are initially compressed during conveying by the variable pitch spiral blade 2 with the gradually decreasing pitch. The primary compression conveying pipe 1 is heated by the heating plate 102, so that the primary compression conveying pipe 1 heats the insulation material particles during conveying, thereby reducing the resilience of the insulation material particles.

[0024] Please see Figure 2 and Figure 4 A pressure plate 5 is provided at the upper end of the compression box 4. A circular feed inlet 401 is provided on one side end face of the compression box 4 at the connection with the primary compression conveying pipe 1. A first hydraulic rod 405 is fixedly connected to the middle of the upper end face of the compression box 4. The lower end of the telescopic end of the first hydraulic rod 405 extends into the compression box 4 and is fixedly connected to the middle of the upper end of the pressure plate 5. After the insulation material particles are initially compressed, they enter the compression box 4 through the circular feed inlet 401. The pressure plate 5 is driven to descend by the first hydraulic rod 405, which further compresses the insulation material particles at the lower end of the compression box 4. A strip opening 404 is provided on the side of the upper end face of the compression box 4 adjacent to the primary compression conveying pipe 1. A side sealing plate 501 is fixedly connected to the side of the upper end face of the pressure plate 5 adjacent to the circular feed inlet 401. The upper end of the side sealing plate 501 extends out of the upper end face of the compression box 4 along the strip opening 404. When the pressure plate 5 descends, it simultaneously drives the side sealing plate 501 to close the circular feed inlet 401.

[0025] Please see Figure 2 and Figure 3A discharge port 402 is provided at the lower end of the side face of the compression box 4 away from the primary compression conveying pipe 1. A rectangular support frame 6 is fixedly connected to the side of the compression box 4 away from the primary compression conveying pipe 1. A discharge baffle 602 is provided at the lower end of the rectangular support frame 6 and outside the discharge port 402. A rectangular opening 403 is provided at the lower end of the side face of the compression box 4 adjacent to the primary compression conveying pipe 1. A storage box 7 is fixedly connected to the outer side of the rectangular opening 403 and on the side face of the compression box 4. A pusher plate 701 is provided inside the storage box 7. Strip grooves 601 are provided on both the front and rear ends of the rectangular support frame 6. The discharge baffle 602 is inserted into the two strip grooves 601 at its front and rear ends respectively. A fixed connection is provided at the middle of the upper end face of the rectangular support frame 6. An electrically controlled telescopic rod 604 is provided. A connecting rod 603 is fixedly connected to the upper middle part of the discharge baffle 602. The lower end of the telescopic end of the electrically controlled telescopic rod 604 passes through the upper end face of the rectangular support frame 6 and is fixedly connected to the upper end of the connecting rod 603. After the insulation material particles inside the compression box 4 are compressed, the discharge baffle 602 is raised by the electrically controlled telescopic rod 604, so that the discharge port 402 is opened. A second hydraulic rod 702 is fixedly connected to the middle part of the side end face of the storage box 7 away from the compression box 4. The telescopic end of the second hydraulic rod 702 passes through the side end face of the storage box 7 and is fixedly connected to the middle part of the side of the pusher plate 701. The pusher plate 701 is moved by the second hydraulic rod 702, so that the pusher plate 701 pushes the compressed insulation material particles out of the discharge port 402.

[0026] Working Principle: In operation, crushed refrigerator insulation material particles are first fed into the primary compression conveying pipe 1 through the feeding pipe 101. The drive motor 301 drives the variable pitch spiral blades 2 to rotate via the rotating shaft 201. As the pitch gradually decreases, the material is initially compressed during conveying. Simultaneously, the heating plate 102 heats the pipe wall, reducing the resilience of the insulation material. After pre-compression, the material enters the compression chamber 4 through the circular feed inlet 401. The first hydraulic rod 405 drives the pressure plate 5 to press down for secondary compression, at which time the side sealing plate 501 simultaneously moves down to close the feed inlet. After compression, the electrically controlled telescopic rod 604 lifts the discharge baffle 602 to open the discharge port 402, and the second hydraulic rod 702 pushes the pusher plate 701 to push the compressed block out from the rectangular opening 403 through the discharge port 402. The entire device, through a three-stage compression process of spiral pre-compression, heat-assisted shaping, and hydraulic final compression, effectively reduces the volume of the insulation material and significantly lowers transportation costs.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A refrigerator insulation material volume reduction extrusion device, comprising a primary compression conveying pipe (1), characterized in that: The primary compression conveying pipe (1) is rotatably connected to a variable pitch spiral blade (2). A compression box (4) is fixedly connected to one side of the primary compression conveying pipe (1). A pressure plate (5) is provided at the upper end of the compression box (4). A discharge port (402) is provided at the lower end of the side face of the compression box (4) away from the primary compression conveying pipe (1). A rectangular support frame (6) is fixedly connected to the side face of the compression box (4) away from the primary compression conveying pipe (1). A discharge baffle (602) is provided at the lower end of the inside of the rectangular support frame (6) and outside the discharge port (402). A rectangular opening (403) is provided at the lower end of the side face of the compression box (4) adjacent to the primary compression conveying pipe (1). A storage box (7) is fixedly connected to the outside of the rectangular opening (403) and on the side face of the compression box (4). A pusher plate (701) is provided inside the storage box (7).

2. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: A feeding pipe (101) is fixedly connected to one side of the upper end of the primary compression conveying pipe (1), and multiple heating plates (102) are fixedly connected in an equally spaced annular array on the outer wall of the primary compression conveying pipe (1).

3. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: A drive device (3) is fixedly connected to the end face of the primary compression conveying pipe (1) away from the compression box (4). A drive motor (301) is fixedly installed inside the drive device (3). A rotating shaft (201) is fixedly connected to the middle of the variable pitch spiral blade (2). One end of the rotating shaft (201) extends into the drive device (3) and is fixedly connected to the output shaft of the drive motor (301).

4. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: A circular feed port (401) is provided on one side end face of the compression box (4) at the connection with the primary compression conveying pipe (1). A first hydraulic rod (405) is fixedly connected to the middle of the upper end face of the compression box (4). The lower end of the telescopic end of the first hydraulic rod (405) extends into the interior of the compression box (4) and is fixedly connected to the middle of the upper end of the pressure plate (5).

5. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: A strip-shaped opening (404) is provided on the side of the upper end face of the compression box (4) adjacent to the primary compression conveying pipe (1). A side sealing plate (501) is fixedly connected on the side of the upper end face of the pressure plate (5) adjacent to the circular feed port (401). The upper end of the side sealing plate (501) extends out of the upper end face of the compression box (4) along the strip-shaped opening (404).

6. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: The rectangular support frame (6) has strip grooves (601) on both the front and rear ends inside. The discharge baffle (602) is inserted into the two strip grooves (601) at both the front and rear ends. An electrically controlled telescopic rod (604) is fixedly connected to the middle of the upper end of the rectangular support frame (6). A connecting rod (603) is fixedly connected to the middle of the upper end of the discharge baffle (602). The lower end of the telescopic rod (604) passes through the upper end of the rectangular support frame (6) and is fixedly connected to the upper end of the connecting rod (603).

7. The refrigerator insulation material volume reduction extrusion device according to claim 1, characterized in that: A second hydraulic rod (702) is fixedly connected to the middle of the side end face away from the compression box (4) of the storage box (7). The telescopic end of the second hydraulic rod (702) passes through the side end face of the storage box (7) and is fixedly connected to the middle of the side of the pusher plate (701).

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