Compaction equipment for foam forming

Abstract

The utility model provides compaction equipment for foam forming. The compaction equipment comprises a barrel body, a spiral conveying mechanism arranged in the barrel body and an extrusion channel communicated with the barrel body, the top of the barrel body is connected with a feeding hopper, and the spiral conveying mechanism comprises a rotating shaft rotationally arranged in the barrel body and a first spiral blade arranged on the rotating shaft; the extrusion channel comprises a U-shaped channel wall and a movable pressing plate, and when the movable pressing plate is close to or away from a bottom plate of the channel wall, the sectional area of the extrusion channel can be changed. According to the compaction equipment for foam forming, through the arrangement of the first spiral blade and the extrusion channel, the first spiral blade can convey foam particles into the extrusion channel, so that the foam particles are extruded by the channel wall and the movable pressing plate, and meanwhile, the foam particles can be continuously supplemented into the barrel body; and the waste foam is continuously compacted into blocks, the working efficiency is high, and the requirement for large-scale recovery treatment of the waste foam can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of foam recycling, and particularly relates to a compaction device for foam molding. Background Art

[0002] As a material with excellent light weight, heat insulation and sound insulation properties, foam materials have been widely used in many fields such as packaging, construction, and household appliances. However, the problem of foam waste treatment has become increasingly prominent, so it is necessary to treat and recycle waste foam.

[0003] Common foam recycling methods include crushing, compressing, melting, granulating, etc. for large pieces of waste foam to achieve its reuse. Among them, compacting waste foam particles into blocks for easy transportation and subsequent processing is a key step in the foam recycling and reuse process. Most of the existing foam compaction devices use compaction devices with simple structures to compress foam particles into blocks by mechanical force. However, the working efficiency of such compaction devices is relatively low, and they cannot continuously compact waste foam into blocks, making it difficult to meet the needs of large-scale recycling and treatment. Content of the Utility Model

[0004] In view of this, the utility model aims to provide a compaction device for foam molding, which can continuously compact waste foam into blocks and has a high working efficiency.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A compaction device for foam molding includes a barrel body, a spiral conveying mechanism disposed inside the barrel body, and an extrusion channel communicating with the barrel body;

[0007] The top of the barrel body is connected with a feed funnel, and the spiral conveying mechanism includes a rotating shaft rotatably disposed inside the barrel body and a first spiral blade disposed on the rotating shaft; the extrusion channel includes a channel wall in a "U" shape and a movable pressing plate, and the channel wall and the movable pressing plate enclose the extrusion channel with a rectangular cross-section. When the movable pressing plate approaches or moves away from the bottom plate of the channel wall, the cross-sectional area of the extrusion channel can be changed;

[0008] When the rotating shaft is driven to rotate, the first spiral blade can convey the foam particles entering the barrel body into the extrusion channel and make the foam particles be extruded by the movable pressing plate.

[0009] Furthermore, the movable pressure plate includes an inclined pressure plate hinged to the barrel body, and a transverse plate hinged to the inclined pressure plate; the transverse plate is parallel to the bottom of the channel wall, and when the transverse plate approaches or moves away from the bottom plate, the angle between the inclined pressure plate and the bottom plate is changed; the cross-sectional area of ​​the extrusion channel formed by the inclined pressure plate and part of the channel wall gradually decreases along the moving direction of the foam particles.

[0010] Furthermore, the inclined pressure plate includes an outer plate hinged to the barrel body at one end, and an inner plate hinged to the transverse plate at one end; the other end of the outer plate is recessed to form a slide groove, and the inner plate can be inserted and slid in the slide groove; a lifting device is provided on the channel wall, and the lifting device can drive the transverse plate to move in the height direction.

[0011] Furthermore, the lifting device includes a threaded sleeve, a screw in the threaded sleeve, and a bracket connected to the threaded sleeve; the bracket is arranged on the outer side of the side plate of the channel wall, the lower end of the screw is connected to the cross plate, and the upper end of the screw is connected to a handwheel; when the handwheel is operated to drive the screw to rotate, the screw can drive the cross plate to move along the height direction.

[0012] Furthermore, the barrel body includes a cylindrical first part and a truncated cone-shaped second part; one end of the first part is closed, and the other end is connected to the second part, and the feed funnel is located at the top of the first part; the second part is connected to the extrusion channel, and the diameter of the second part gradually decreases from the first part to the extrusion channel.

[0013] Furthermore, a motor for driving the rotating shaft to rotate is provided on the outer side of the closed end of the first part, and the motor is connected to the rotating shaft through a reduction gear box.

[0014] Furthermore, the rotating shaft is provided with a plurality of stirring blades, and each stirring blade and the first spiral blade are arranged alternately in the length direction of the rotating shaft.

[0015] Furthermore, the rotating shaft is provided with a second spiral blade, and the second spiral blade is located in the second part; the second spiral blade is a conical spiral blade, and the edge of the second spiral blade is in contact with the inner wall of the second part.

[0016] Furthermore, a support arm is provided in the barrel body, the lower end of the support arm is connected to the first part, and the upper end of the support arm is provided with a sleeve; the sleeve is rotatably sleeved on the rotating shaft and is located between the first spiral blade and the second spiral blade.

[0017] Furthermore, it also includes an electric heating pipe surrounding the second part, the electric heating pipe can heat the side wall of the second part, and the second part is provided with an insulating material for covering the electric heating pipe.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The foam forming and compacting equipment described in the present invention, through the arrangement of the first spiral blade and the extrusion channel, the first spiral blade can transport foam particles into the extrusion channel, so that the foam particles are squeezed by the channel wall and the movable pressure plate to form long foam blocks with the same cross-sectional shape as the extrusion channel. At the same time, foam particles can be continuously added to the barrel body to continuously compact the waste foam into blocks. The specific high working efficiency can meet the needs of large-scale recovery and treatment of waste gas foam.

[0020] Furthermore, the inclined pressure plate gradually reduces the cross-sectional area of ​​the extrusion channel where the foam particles first enter, gradually increasing the pressure exerted by the inclined pressure plate on the foam particles and improving the compactness of the foam block. The inclined pressure plate comprises an outer plate and an inner plate. The inner plate slides within a groove within the outer plate to adjust the overall length of the inclined pressure plate, thereby ensuring the integrity of the extrusion channel. The screw and threaded sleeve allow for effective adjustment of the horizontal plate's position. The self-locking nature of the screw and sleeve ensures the pressure exerted by the movable pressure plate on the foam, while the handwheel facilitates operation.

[0021] The barrel comprises a cylindrical first portion and a truncated cone-shaped second portion, ensuring that the foam particles are first squeezed by the inner wall of the second portion as they are transported into the extrusion channel. A motor is located outside the closed end of the first portion and is connected to the rotating shaft via a reduction gearbox, providing a strong driving force to drive the rotating shaft. The rotating shaft is also equipped with multiple stirring blades that stir and break up any clumped foam particles.

[0022] Furthermore, the rotating shaft is equipped with a second tapered spiral blade, which increases the extrusion pressure of the foam particles, further enhancing the squeezing effect of the foam particles, thereby increasing the density of the foam block. A support arm is installed within the barrel to support the other end of the rotating shaft to ensure the stability of the rotating shaft. The electric heating tube surrounds the second part and heats the sidewalls of the second part to melt some of the foam particles in the second part. The partially melted foam forms a harder shell on the outside of the foam block, thereby improving the structural strength of the foam block. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the internal structure of the foam forming and compacting equipment according to an embodiment of the present utility model;

[0025] Figure 2 For the utility model Figure 1 A magnified view of the position shown in middle A;

[0026] Description of reference numerals:

[0027] 1. Barrel body;

[0028] 101. First part; 1011. Feeding funnel; 1012. Support arm;

[0029] 102. Part II; 1021. Electric heating tube; 1022. Thermal insulation material;

[0030] 2. Rotating shaft;

[0031] 201, first spiral blade; 202, stirring blade; 203, second spiral blade; 204, sleeve;

[0032] 3. Channel wall;

[0033] 301, bottom plate; 302, side plate;

[0034] 4. Movable pressure plate;

[0035] 401, inclined pressure plate; 4011, outer plate; 4012, inner plate; 402, transverse plate;

[0036] 5. Threaded sleeve;

[0037] 501, bracket;

[0038] 6. Screw;

[0039] 601, hand wheel;

[0040] 7. Motor;

[0041] 8. Gearbox. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0043] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0044] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationships such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0045] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0046] [[ID=⑨]]The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0047] This embodiment relates to a compaction device for foam molding, as Figure 1 shown. In terms of the overall structure, it includes a barrel body 1, a spiral conveying mechanism provided in the barrel body 1, and an extrusion channel communicating with the barrel body 1.

[0048] Among them, a feeding funnel 1011 is connected to the top of the barrel body 1, and the spiral conveying mechanism includes a rotating shaft 2 rotatably provided in the barrel body 1 and a first spiral blade 201 provided on the rotating shaft 2. The extrusion channel includes a channel wall 3 in a "U" shape and a movable pressing plate 4. The channel wall 3 and the movable pressing plate 4 enclose an extrusion channel with a rectangular cross-section, and when the movable pressing plate 4 approaches or moves away from the bottom plate 301 of the channel wall 3, the cross-sectional area of the extrusion channel can be changed. When the rotating shaft 2 is driven to rotate, the first spiral blade 201 can convey the foam particles entering the barrel body 1 into the extrusion channel and cause the foam particles to be extruded by the movable pressing plate 4. [[ID=ID=19]]

[0049] As described above, through the setting of the first spiral blade 201 and the extrusion channel, the first spiral blade 201 can transport the foam particles into the extrusion channel, so that the foam particles are squeezed by the channel wall 3 and the movable pressure plate 4 to form a long foam block with the same cross-sectional shape as the extrusion channel. At the same time, foam particles can be continuously added to the barrel body 1 to continuously compact the waste foam into blocks. The specific high working efficiency can meet the needs of large-scale recovery and treatment of waste gas foam.

[0050] Based on the above overall description, specifically, since this embodiment is used to compact foam particles to form high-density foam blocks, the foam particles need to be subjected to sufficient pressure during the process of being conveyed by the first spiral blade 201 to the extrusion channel. Therefore, the maximum cross-sectional area of ​​the extrusion channel of this embodiment is smaller than the cross-sectional area of ​​the barrel 1 to ensure that the foam particles can be extruded and formed by the channel wall 3 and the movable pressure plate 4. In this embodiment, the extrusion channel can discharge elongated foam blocks. At this time, the operator can manually cut the foam blocks into a size suitable for transportation according to transportation needs.

[0051] To enhance the compression effect on the foam, the movable pressure plate 4 in this embodiment includes an inclined pressure plate 401 hinged to the barrel 1, and a transverse plate 402 hingedly connected to the inclined pressure plate 401. The transverse plate 402 is parallel to the bottom of the channel wall 3. As the transverse plate 402 moves closer to or further away from the bottom plate 301, the angle between the inclined pressure plate 401 and the bottom plate 301 changes. The cross-sectional area of ​​the compression channel formed by the inclined pressure plate 401 and a portion of the channel wall 3 gradually decreases along the direction of movement of the foam particles.

[0052] The inclined pressing plate 401 gradually reduces the cross-sectional area of ​​the portion of the extrusion channel that the foam particles initially enter as they move toward the extrusion channel, thereby increasing the compression of the foam particles by the inclined pressing plate 401. The portion of the extrusion channel subsequently formed by the horizontal plate 402 and the channel wall 3 maintains the volume of the compressed foam block, preventing it from breaking. This improves the compression effect on the foam particles and increases the compactness of the foam block.

[0053] Specifically, such as Figure 2As shown, the inclined pressure plate 401 of this embodiment includes an outer plate 4011 hinged to the barrel body 1 at one end, and an inner plate 4012 hinged to the transverse plate 402 at one end. The other end of the outer plate 4011 is recessed to form a slide groove, and the inner plate 4012 can be inserted and slid into the slide groove. A lifting device is provided on the channel wall 3, and the lifting device can drive the transverse plate 402 to move in the height direction. It can be understood that when the transverse plate 402 moves in the height direction, in order to ensure the integrity of the extrusion channel, the length of the inclined pressure plate 401 needs to change accordingly. To this end, by providing the outer plate 4011 and the inner plate 4012, the inner plate 4012 can slide in the slide groove inside the outer plate 4011 to change the overall length of the inclined pressure plate 401, thereby ensuring the integrity of the extrusion channel and ensuring the extrusion effect on the foam.

[0054] In addition, in order to achieve the lifting and lowering of the cross plate 402 and ensure that the movable pressure plate 4 as a whole can apply sufficient pressure to the foam, the lifting device of this embodiment includes a threaded sleeve 5, a screw 6 screwed in the threaded sleeve 5, and a bracket 501 connected to the threaded sleeve 5. The bracket 501 is arranged on the outer side of the side plate 302 of the channel wall 3, the lower end of the screw 6 is connected to the cross plate 402, and the upper end of the screw 6 is connected to the handwheel 601. When the handwheel 601 is operated to drive the screw 6 to rotate, the screw 6 can drive the cross plate 402 to move in the height direction. Through the setting of the screw 6 and the threaded sleeve 5, the position of the cross plate 402 can be effectively adjusted. At the same time, the cooperation of the screw 6 and the threaded sleeve 5 has a self-locking effect, which can ensure the pressure of the movable pressure plate 4 on the foam, and the setting of the handwheel 601 is convenient for operation.

[0055] As a specific implementation form, the barrel body 1 of this embodiment includes a cylindrical first part 101 and a truncated cone-shaped second part 102. One end of the first part 101 is closed, and the other end is connected to the second part 102, and the feeding funnel 1011 is located at the top of the first part 101. The second part 102 is connected to the extrusion channel, and the diameter of the second part 102 gradually decreases from the first part 101 to the extrusion channel. By setting the truncated cone-shaped second part 102, the foam particles can be first squeezed by the inner wall of the second part 102 during the process of being transported to the extrusion channel, thereby improving the squeezing effect on the foam and increasing the density of the foam block.

[0056] In this embodiment, a motor 7 for driving the rotating shaft 2 is disposed outside the closed end of the first portion 101. The motor 7 is connected to the rotating shaft 2 via a reduction gearbox 8. The reduction gearbox 8 increases the torque of the rotating shaft 2, thereby ensuring that the first spiral blade 201 exerts a sufficient pressure on the foam particles, thereby compressing and extruding the foam particles into the extrusion channel.

[0057] In addition, the rotating shaft 2 of this embodiment is further provided with a plurality of stirring blades 202, which are arranged alternately with the first spiral blades 201 in the longitudinal direction of the rotating shaft 2. While the rotating shaft 2 rotates and the first spiral blades 201 convey the foam particles, the stirring blades 202 can stir and crush agglomerated foam particles, thereby improving the compaction effect of the foam particles.

[0058] The rotating shaft 2 of this embodiment is also provided with a second spiral blade 203, which is located in the second portion 102. The second spiral blade 203 is a tapered spiral blade, and the edge of the second spiral blade 203 abuts against the inner wall of the second portion 102. The provision of the second spiral blade 203 enables foam particles to be transported within the second portion 102, increasing the extrusion pressure of the foam particles and ensuring that the sidewalls of the second portion 102 can exert sufficient pressure on the foam particles, further improving the squeezing effect on the foam particles and thereby increasing the density of the foam block.

[0059] Because the first and second blades are mounted on the rotating shaft 2, the rotating shaft 2 has a certain length. To ensure the rotational stability of the rotating shaft 2 within the barrel body 1, a support arm 1012 is provided within the barrel body 1 of this embodiment. The lower end of the support arm 1012 is connected to the first portion 101, and the upper end of the support arm 1012 is provided with a sleeve 204. The sleeve 204 is rotatably sleeved on the rotating shaft 2 and is located between the first spiral blade 201 and the second spiral blade 203. Through the provision of the support arm 1012, the closed end of the first portion 101 can support one end of the rotating shaft 2, while the support arm 1012 can support the other end of the rotating shaft 2, thereby ensuring the rotational stability of the rotating shaft 2.

[0060] Finally, this embodiment further includes an electric heating pipe 1021 surrounding the second portion 102. The electric heating pipe 1021 is capable of heating the sidewalls of the second portion 102. The heating of the electric heating pipe 1021 heats the second portion 102 to a certain temperature, thereby melting some of the foam particles in the second portion 102, particularly those in contact with the second portion 102. When these foam particles are heated, melted, and extruded into the extrusion channel, the partially melted foam will be located outside the compacted foam block and wrap around the foam block. After cooling, the partially melted foam will form a hard outer shell on the outside of the foam block.

[0061] This improves the structural strength of the compacted foam block, effectively preventing it from breaking and facilitating its transport. Furthermore, in this embodiment, the second portion 102 is provided with a thermal insulation material 1022 for covering the electric heating pipe 1021. In practice, this thermal insulation material 1022 can be thermal insulation cotton, which covers the electric heating pipe 1021, improving the heating efficiency of the electric heating pipe 1021 on the second portion 102 and, to a certain extent, preventing burns to workers from contact with the electric heating pipe 1021.

[0062] In summary, the foam forming and compacting equipment of this embodiment, through the setting of the first spiral blade 201 and the extrusion channel, the first spiral blade 201 can transport foam particles into the extrusion channel, so that the foam particles are squeezed by the channel wall 3 and the movable pressure plate 4 to form a long foam block with the same cross-sectional shape as the extrusion channel. At the same time, foam particles can be continuously added to the barrel body 1 to continuously compact the waste foam into blocks. The specific high working efficiency can meet the needs of large-scale recovery and treatment of waste gas foam.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compaction device for foam molding, characterized in that: It includes a barrel body (1), a spiral conveying mechanism arranged inside the barrel body (1), and an extrusion channel communicating with the barrel body (1); A feed hopper (1011) is connected to the top of the barrel body (1), and the spiral conveying mechanism includes a rotating shaft (2) arranged inside the barrel body (1), and a first spiral blade (201) arranged on the rotating shaft (2); The extrusion channel includes a channel wall (3) in a "U" shape, and a movable pressing plate (4). The channel wall (3) and the movable pressing plate (4) enclose the extrusion channel with a rectangular cross-section, and when the movable pressing plate (4) approaches or moves away from the bottom plate (301) of the channel wall (3), the cross-sectional area of the extrusion channel can be changed; When the rotating shaft (2) is driven to rotate, the first spiral blade (201) can convey the foam particles entering the barrel body (1) into the extrusion channel, and make the foam particles be extruded by the movable pressing plate (4).

2. The compaction device for foam molding according to claim 1, characterized in that: The movable pressing plate (4) includes an inclined pressing plate (401) hinged to the barrel body (1), and a cross plate (402) hinged to the inclined pressing plate (401); The cross plate (402) is parallel to the bottom of the channel wall (3). When the cross plate (402) approaches or moves away from the bottom plate (301), the included angle between the inclined pressing plate (401) and the bottom plate (301) is changed; The cross-sectional area of the extrusion channel formed by the inclined pressing plate (401) and part of the channel wall (3) gradually decreases along the moving direction of the foam particles.

3. The compaction device for foam molding according to claim 2, characterized in that: The inclined pressing plate (401) includes an outer plate (4011) hinged to the barrel body (1) at one end, and an inner plate (4012) hinged to the cross plate (402) at one end; The other end of the outer plate (4011) is recessed to form a chute, and the inner plate (4012) can be inserted into and slide in the chute; A lifting device is arranged on the channel wall (3), and the lifting device can drive the cross plate (402) to move in the height direction.

4. The compaction device for foam molding according to claim 3, characterized in that: The lifting device includes a threaded sleeve (5), a screw rod (6) screwed in the threaded sleeve (5), and a bracket (501) connecting the threaded sleeve (5); The bracket (501) is arranged outside the side plate (302) of the channel wall (3), the lower end of the screw rod (6) is connected to the cross plate (402), and the upper end of the screw rod (6) is connected with a hand wheel (601); When the hand wheel (601) is operated to drive the screw rod (6) to rotate, the screw rod (6) can带动 the cross plate (402) to move in the height direction.

5. The compaction device for foam molding according to any one of claims 1 to 4, characterized in that: The barrel (1) comprises a cylindrical first portion (101) and a truncated cone-shaped second portion (102); One end of the first part (101) is closed, and the other end is connected to the second part (102), and the feeding funnel (1011) is located on the top of the first part (101); The second portion (102) is connected to the extrusion channel, and the diameter of the second portion (102) is gradually reduced from the first portion (101) to the extrusion channel.

6. The foam molding compacting device according to claim 5, characterized in that: A motor (7) for driving the rotating shaft (2) to rotate is provided on the outer side of the closed end of the first part (101), and the motor (7) is connected to the rotating shaft (2) via a reduction gearbox (8).

7. The foam molding compacting device according to claim 5, characterized in that: The rotating shaft (2) is further provided with a plurality of stirring blades (202), and each stirring blade (202) and the first spiral blade (201) are arranged alternately in the length direction of the rotating shaft (2).

8. The foam molding compacting device according to claim 5, characterized in that: The rotating shaft (2) is further provided with a second spiral blade (203), and the second spiral blade (203) is located in the second part (102); The second spiral blade (203) is a conical spiral blade, and the edge of the second spiral blade (203) fits the inner wall of the second part (102).

9. The foam molding compacting device according to claim 8, characterized in that: A support arm (1012) is provided in the barrel body (1), the lower end of the support arm (1012) is connected to the first part (101), and the upper end of the support arm (1012) is provided with a sleeve (204); The sleeve (204) is rotatably sleeved on the rotating shaft (2) and is located between the first spiral blade (201) and the second spiral blade (203).

10. The foam molding compacting device according to claim 5, characterized in that: The invention also includes an electric heating pipe (1021) surrounding the second part (102), wherein the electric heating pipe (1021) is capable of heating the side wall of the second part (102), and the second part (102) is provided with a heat insulating material (1022) for covering the electric heating pipe (1021).

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