A plastic particle preheating device for plastic building block production

Abstract

The utility model relates to the technical field of plastic particle preheating, and disclose a kind of plastic particle preheating device for plastic building block production, including turnover subassembly, the rear end of turnover subassembly is equipped with support subassembly, and the left and right ends of turnover subassembly are equipped with heating hair dryer subassembly, in turnover subassembly, first servo motor drive rotating shaft drives multiple U hollow turnover plate rotation, can continuously turn over, scatter, avoid particle accumulation, and the heating electric wire and its electronic components of heating hair dryer subassembly generate heat, electric fan and its electronic components will hot air be blown into turnover shell through protective net, hot air and the particle that turns over are fully contacted, realize particle all-around heating, effectively solve the problem that traditional device particle is unevenly heated, heating efficiency is low, the feeding barrel of feeding component is equipped with check valve and its mechanical components, can control plastic particle one-way feeding, avoid particle or hot air overflow from feeding port in preheating process.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule preheating technology, and more specifically, to a plastic granule preheating device for the production of plastic building blocks. Background Technology

[0002] In the production of plastic building blocks, preheating of plastic granules is a key pre-process. Its purpose is to remove internal moisture and improve plasticity by preheating the plastic granules, ensuring uniform flow of the plastic melt during subsequent injection molding and avoiding defects such as bubbles and cracks in the finished building blocks. Currently, the plastic granule preheating devices used in the production of plastic building blocks mostly adopt static stacking heating or simple conveying heating methods. These devices generally rely on a single heating structure and lack an effective turning mechanism for the plastic granules.

[0003] Then, in the existing equipment, plastic granules tend to accumulate in the heating area during the preheating process, resulting in uneven heating of the granules. The outer layer of granules tends to clump together due to excessive temperature, while the inner layer of granules fails to meet the preheating requirements due to insufficient temperature, which directly affects the subsequent injection molding quality. At the same time, although some equipment has added a blowing structure to assist in heat dissipation and heat transfer, the heating efficiency is low because the hot air cannot penetrate the accumulated granule layer, and impurities in the air can easily enter the heating components with the hot air, shortening the service life of the equipment. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a plastic granule preheating device for the production of plastic building blocks, which has the advantages of integrating turning and blowing heating.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic pellet preheating device for producing plastic building blocks includes a turning component, a support component at the rear end of the turning component, heating and blowing components at both the left and right ends of the turning component, and a feeding component at the upper end of the turning component.

[0007] The flipping assembly includes a flipping housing, a protective housing fixedly connected to the rear end of the flipping housing, a first servo motor fixedly connected inside the protective housing, a rotating shaft fixedly connected to the output end of the first servo motor extending into the interior of the flipping housing, a plurality of flipping plates fixedly connected to the middle of the rotating shaft and located inside the flipping housing, and a pair of symmetrical protective nets fixedly connected to both sides of the flipping housing.

[0008] As a preferred technical solution of this utility model, the support assembly includes a pair of support legs fixedly connected to the middle of the protective shell. A fixing rod is fixedly connected to the lower end of one of the support legs, and a second servo motor is fixedly connected to the upper end of the other support leg. A lead screw is fixedly connected to the output end of the second servo motor. A lifting plate is installed in the middle of the lead screw through a screw sleeve. One end of the lifting plate is slidably connected to the fixing rod, and a sealing cover is fixedly connected to the middle of the lifting plate.

[0009] As a preferred technical solution of this utility model, the heating and blowing assembly includes a heating shell that is fixedly connected to the left and right ends of the flipping shell, a heating wire and its electronic components are fixedly connected inside the heating shell, a blowing shell is fixedly connected to the end of the heating shell away from the flipping shell, a pair of spaced filters are fixedly connected to the end of the blowing shell away from the heating shell, and an electric fan and its electronic components are fixedly connected inside the blowing shell.

[0010] As a preferred embodiment of the present invention, the feeding assembly includes a feeding shell fixedly connected to the upper end of the flipping shell, a feeding barrel fixedly connected to the upper end of the feeding shell, and a one-way valve and its mechanical components fixedly connected inside the feeding barrel.

[0011] As a preferred embodiment of this utility model, rectangular holes for installing protective nets are provided at both the left and right ends of the flipping shell, a through hole for use with the feeding shell is provided at the upper end of the flipping shell, and a discharge hole for use with the sealing cover is provided at the lower end of the flipping shell.

[0012] As a preferred technical solution of this utility model, the flipping plate is U-shaped and hollow.

[0013] As a preferred embodiment of this utility model, an arc-shaped protrusion is fixedly connected to the upper end of the sealing cap.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the first servo motor drives the rotating shaft in the flipping assembly to rotate multiple U-shaped hollow flipping plates, which can continuously flip and disperse the plastic particles inside the flipping shell to prevent particle accumulation. At the same time, the heating wire and electronic components of the heating and blowing assembly generate heat, and the electric fan and its electronic components blow hot air into the flipping shell through the protective net. The hot air comes into full contact with the flipped particles, so that the particles are heated from all directions, effectively solving the problems of uneven particle heating and low heating efficiency in traditional devices.

[0016] 2. This utility model features a one-way valve and mechanical components inside the feeding hopper of the feeding assembly, which controls the one-way feeding of plastic granules, preventing granules or hot air from overflowing from the feeding port during preheating and preventing granules from clogging the feed. The heating and blowing assembly has a pair of filters at one end of the blowing shell, which can filter impurities in the air and prevent impurities from entering the heating shell with the hot air or agitating the shell. This protects the heating wire, electric fan and other components, and prevents impurities from contaminating the plastic granules, ensuring the purity of the raw materials for plastic building block production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the flipping component of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the heating and blowing assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the feeding assembly of this utility model.

[0023] In the diagram: 1. Tilting assembly; 2. Support assembly; 3. Heating and blowing assembly; 4. Feeding assembly; 101. Tilting outer shell; 102. Protective outer shell; 103. First servo motor; 104. Rotating shaft; 105. Tilting plate; 106. Protective net; 201. Support leg; 202. Fixing rod; 203. Second servo motor; 204. Lead screw; 205. Lifting plate; 206. Sealing cover; 301. Heating outer shell; 302. Heating wire and its electronic components; 303. Blowing outer shell; 304. Filter screen; 305. Electric fan and its electronic components; 401. Feeding outer shell; 402. Feeding hopper; 403. One-way valve and its mechanical components. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6As shown, this utility model provides a plastic pellet preheating device for plastic building block production, including a turning component 1, a support component 2 at the rear end of the turning component 1, heating and blowing components 3 at both the left and right ends of the turning component 1, and a feeding component 4 at the upper end of the turning component 1.

[0026] The flipping assembly 1 includes a flipping housing 101. A protective housing 102 is fixedly connected to the rear end of the flipping housing 101. A first servo motor 103 is fixedly connected inside the protective housing 102. A rotating shaft 104 is fixedly connected to the output end of the first servo motor 103 inside the flipping housing 101. A plurality of flipping plates 105 are fixedly connected to the middle of the rotating shaft 104 inside the flipping housing 101. A pair of left-right symmetrical protective nets 106 are fixedly connected to both sides of the flipping housing 101.

[0027] With this structure, the flipping shell 101 provides a closed preheating space for the plastic particles, the protective shell 102 protects the first servo motor 103 from damage by particles or impurities, the first servo motor 103 drives the rotating shaft 104 to rotate the flipping plate 105, thereby turning and breaking up the particles to avoid accumulation, and the protective net 106 allows the hot air from the heating and blowing assembly 3 to enter while blocking the particles from leaking out.

[0028] The support assembly 2 includes a pair of support legs 201 fixedly connected to the middle of the protective shell 102. The lower end of one support leg 201 is fixedly connected to a fixing rod 202, and the upper end of the other support leg 201 is fixedly connected to a second servo motor 203. The output end of the second servo motor 203 is fixedly connected to a lead screw 204. A lifting plate 205 is installed in the middle of the lead screw 204 through a screw sleeve. One end of the lifting plate 205 is slidably connected to the fixing rod 202, and a sealing cover 206 is fixedly connected in the middle of the lifting plate 205.

[0029] The device is supported and fixed by the support leg 201 to ensure stability during operation. The second servo motor 203 drives the lead screw 204 to move the lifting plate 205 along the fixed rod 202, thereby controlling the lifting and lowering of the sealing cover 206 to realize the automatic opening and closing of the unloading hole without manual operation, improving unloading efficiency, and ensuring the sealing of the unloading hole during preheating.

[0030] The heating and blowing assembly 3 includes a heating shell 301 fixedly connected to the left and right ends of the flipping shell 101, a heating wire and its electronic components 302 fixedly connected inside the heating shell 301, a blowing shell 303 fixedly connected at intervals at the end of the heating shell 301 away from the flipping shell 101, a pair of filters 304 fixedly connected at the end of the blowing shell 303 away from the heating shell 301, and an electric fan and its electronic components 305 fixedly connected inside the blowing shell 303.

[0031] Heat is generated by heating wire and its electronic components 302. The electric fan and its electronic components 305 blow air toward the heating element to form hot air. The hot air enters the flipping housing 101 through the heating housing 301. The filter screen 304 filters impurities in the air to prevent impurities from contaminating particles or damaging internal components.

[0032] The feeding assembly 4 includes a feeding housing 401 fixedly connected to the upper end of the flipping housing 101, a feeding barrel 402 fixedly connected to the upper end of the feeding housing 401, and a one-way valve and its mechanical components 403 fixedly connected inside the feeding barrel 402.

[0033] The feeding hopper 402 facilitates the batch feeding of plastic granules. The feeding shell 401 guides the granules to accurately enter the turning shell 101. The one-way valve and its mechanical components 403 control the one-way feeding of granules, preventing hot air or granules from overflowing from the feeding port during preheating, while avoiding granule blockage during feeding and ensuring smooth feeding.

[0034] The flipping housing 101 has rectangular holes at both ends for installation with the protective net 106, a through hole at the top for use with the feeding housing 401, and a discharge hole at the bottom for use with the sealing cover 206.

[0035] The rectangular holes ensure the secure installation of the protective net 106, guaranteeing hot air circulation and particle blocking. The through holes ensure precise alignment between the feed housing 401 and the flipping housing 101, preventing particle spillage. The discharge hole, in conjunction with the sealing cover 206, enables particle discharge and spatial sealing.

[0036] The flip plate 105 is U-shaped and has a hollowed-out shape.

[0037] The perforated design reduces frictional resistance between the particles and the plate, lowers component wear, and allows hot air to penetrate the flipping plate 105, making more thorough contact with the particles and improving preheating uniformity.

[0038] An arc-shaped protrusion is fixedly connected to the upper end of the sealing cap 206.

[0039] By using arc-shaped protrusions to fit against the inner wall of the discharge hole at the lower end of the flipping housing 101, the sealing effect is enhanced, and the loss of hot air from the discharge hole gap during preheating is reduced.

[0040] Working principle and usage process of this utility model:

[0041] Plastic granules are fed into the feeding hopper 402 of the feeding assembly 4. Controlled by a one-way valve and mechanical components 403 inside the feeding hopper 402, they pass unidirectionally through the feeding housing 401, then through the through-hole at the top of the flipping housing 101 into its interior. This activates the first servo motor 103 of the flipping assembly 1. The output of the first servo motor 103 drives the rotating shaft 104 to rotate inside the flipping housing 101. Multiple flipping plates 105 in the middle of the rotating shaft 104 rotate synchronously with the rotating shaft 104, thus flipping the plastic granules. The plastic particles inside the rotating housing 101 are turned over and dispersed. The heating and blowing assembly 3 is activated, and the heating wire and its electronic components 302 inside the heating housing 301 are energized to generate heat. At the same time, the electric fan and its electronic components 305 inside the blowing housing 303 are activated, drawing in external air after it has been filtered through the filter screen 304 at one end of the blowing housing 303. The air is then blown towards the heating wire and its electronic components 302 inside the heating housing 301. The heated air becomes hot air, which enters the rotating housing 101 through the protective mesh 106 at the rectangular holes at both ends of the rotating housing 101. It comes into full contact with the plastic particles dispersed by the rotating plate 105, preheating the plastic particles. During the preheating process, the sealing cover 206 of the support assembly 2 is in a closed state. The arc-shaped protrusion at the upper end of the sealing cover 206 fits against the discharge hole at the lower end of the rotating housing 101 to prevent hot air from escaping from the discharge hole and to prevent plastic particles from leaking out. After the preheating is completed, the second servo motor 203 of the support assembly 2 is activated. The output end of the second servo motor 203... The screw 204 is rotated, and the screw sleeve in the middle of the screw 204 drives the lifting plate 205 to slide down along the fixed rod 202. The lifting plate 205 drives the sealing cover 206 to descend synchronously, opening the discharge hole at the lower end of the flipping shell 101. The flipping plate 105 continues to rotate, pushing the preheated plastic granules out from the discharge hole at the lower end of the flipping shell 101, completing the unloading. After the unloading is completed, the second servo motor 203 is started in reverse, driving the sealing cover 206 to rise and reset, closing the discharge hole, and the device can enter the next round of preheating operation.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pellet preheating device for producing plastic building blocks, comprising a turning assembly (1), characterized in that: The rear end of the flipping component (1) is provided with a support component (2), the left and right ends of the flipping component (1) are provided with heating and blowing components (3), and the upper end of the flipping component (1) is provided with a feeding component (4). The flipping assembly (1) includes a flipping shell (101), a protective shell (102) is fixedly connected to the rear end of the flipping shell (101), a first servo motor (103) is fixedly connected inside the protective shell (102), the output end of the first servo motor (103) extends into the interior of the flipping shell (101) and is fixedly connected to a rotating shaft (104), a plurality of flipping plates (105) are fixedly connected in the middle of the rotating shaft (104) and inside the flipping shell (101), and a pair of left-right symmetrical protective nets (106) are fixedly connected to both sides of the flipping shell (101).

2. The plastic granule preheating device for producing plastic building blocks according to claim 1, characterized in that: The support assembly (2) includes a pair of support legs (201) fixedly connected to the middle of the protective shell (102). The lower end of one of the support legs (201) is fixedly connected to a fixing rod (202), and the upper end of the other support leg (201) is fixedly connected to a second servo motor (203). The output end of the second servo motor (203) is fixedly connected to a lead screw (204). A lifting plate (205) is installed in the middle of the lead screw (204) through a screw sleeve. One end of the lifting plate (205) is slidably connected to the fixing rod (202), and a sealing cover (206) is fixedly connected in the middle of the lifting plate (205).

3. The plastic granule preheating device for producing plastic building blocks according to claim 1, characterized in that: The heating and blowing assembly (3) includes a heating shell (301) fixedly connected to the left and right ends of the flipping shell (101). A heating wire and its electronic components (302) are fixedly connected inside the heating shell (301). A blowing shell (303) is fixedly connected to the end of the heating shell (301) away from the flipping shell (101). A pair of spaced filters (304) are fixedly connected to the end of the blowing shell (303) away from the heating shell (301). An electric fan and its electronic components (305) are fixedly connected inside the blowing shell (303).

4. The plastic granule preheating device for producing plastic building blocks according to claim 1, characterized in that: The feeding assembly (4) includes a feeding shell (401) fixedly connected to the upper end of the flipping shell (101), and a feeding barrel (402) fixedly connected to the upper end of the feeding shell (401). A one-way valve and its mechanical components (403) are fixedly connected inside the feeding barrel (402).

5. The plastic granule preheating device for producing plastic building blocks according to claim 1, characterized in that: The left and right ends of the flipping shell (101) are provided with rectangular holes for installation with the protective net (106). The upper end of the flipping shell (101) is provided with a through hole for use with the feeding shell (401). The lower end of the flipping shell (101) is provided with a discharge hole for use with the sealing cover (206).

6. The plastic granule preheating device for producing plastic building blocks according to claim 1, characterized in that: The flip plate (105) is U-shaped and has a hollowed-out shape.

7. A plastic granule preheating device for producing plastic building blocks according to claim 2, characterized in that: An arc-shaped protrusion is fixedly connected to the upper end of the sealing cap (206).

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