A plastic pre-processing heat treatment device

Abstract

The utility model relates to the technical field of plastic processing preheat treatment equipment, especially to a kind of plastic processing preheat treatment equipment, including equipment body, the equipment body front fixed installation has control panel, the equipment body left end is fixedly connected with mounting bracket. By constructing multilayer, adjustable heating system, effectively solve the problem of uneven heating of traditional equipment, the heat generated by heating generator is formed double-path transmission through communicating vessel, spiral heating ring tube forms annular heating field from periphery, heating barrel interior receives direct heating, again cooperate with the surrounding heating of heating sheet and position adjustment, form three-dimensional heating network. Rotary adjustment mechanism drives heating sheet reciprocating sliding, can dynamic balance temperature, avoid local high temperature or temperature low, make plastic raw material each part evenly heated, ensure that internal stress effectively eliminates, molecular structure is stable, substantially reduce the probability of cracking, deformation and other defects in subsequent processing, significantly improve the quality of plastic products.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment equipment for plastic processing, and in particular to a heat treatment equipment for plastic processing. Background Technology

[0002] In the plastics processing workflow, heat treatment is a crucial step in ensuring the quality of subsequent molding. Through scientific and reasonable heat treatment, the molecular arrangement inside the plastic can be effectively adjusted, internal stress generated during production can be eliminated, and the stability and processing performance of the material can be improved, laying the foundation for the production of high-quality plastic products.

[0003] Traditional heat treatment equipment for plastic processing suffers from significant deficiencies in heating uniformity, a major bottleneck restricting processing quality. Traditional equipment often employs a single, uniform heating mode, placing the plastic raw material in a fixed heating space and relying on hot air convection or radiation for temperature rise. Due to variations in the packing state, shape, and thermal conductivity of the plastic raw material, heat transfer efficiency varies greatly within the material. The plastic material concentrated in the central region often heats slowly, while the surface layer near the heat source may have already reached or even exceeded the required temperature, creating a noticeable temperature gradient. This uneven heating directly leads to inconsistent heat treatment results, severely impacting key indicators such as strength and toughness of plastic products. Therefore, a new heat treatment equipment for plastic processing is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a pre-processing heat treatment device for plastics. It solves the problem that due to variations in the packing state, shape, and thermal conductivity of plastic raw materials, the heat transfer efficiency within the material varies greatly. Plastic raw materials piled in the central region often heat slowly, while the surface layer near the heating source may have already reached or even exceeded the required temperature, creating a significant temperature gradient. This uneven heating directly leads to inconsistent heat treatment results for the plastic raw materials, severely affecting key indicators such as the strength and toughness of plastic products.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a heat treatment device for plastic processing, comprising a device body, a control panel fixedly installed on the front of the device body, a mounting frame fixedly connected to the left end of the device body, a rotating connecting rod rotatably connected to the inner wall of the mounting frame, a turntable fixedly connected to the outer end of the rotating connecting rod, a rotating plate fixedly connected to the inner side of the rotating connecting rod, a hinged connecting rod hinged to the outer wall of the outer side of the rotating plate, a rotating limiting rod rotatably connected to the inner end of the hinged connecting rod, a heating element fixedly connected to the right end of the rotating limiting rod, a limiting slider fixedly connected to the outer walls of the front and rear ends of the rotating limiting rod, a limiting sliding frame fixedly connected to the inner wall of the left side of the device body, a partition plate fixedly connected to the outer wall of the limiting sliding frame, a heating cylinder fixedly connected to the right end of the limiting sliding frame, a mounting base fixedly connected to the top of the device body, a heating generator fixedly installed on the top of the mounting base, a communicating vessel connected to both sides of the heating generator, a spiral heating ring tube connected to the bottom of the communicating vessel, and a heating cylinder connected to the outer end of the communicating vessel.

[0006] A further improvement is that a hatch is hinged to the outer wall of the right end of the equipment body, and the hatch is symmetrically arranged on the right end of the equipment body. After the heat treatment is completed, the raw materials can be taken out by opening the hatch symmetrically arranged on the right end of the equipment body. The whole process completely solves the problem of uneven heating caused by the single heating method and rigid temperature regulation of traditional equipment through the synergistic effect of multiple components.

[0007] A further improvement is that the outer wall of the rotating connecting rod is rotatably connected to the inner wall of the left end of the equipment body; the support legs at the bottom of the equipment body ensure the stability of the overall structure; the control panel can monitor the temperature distribution inside the heating cylinder in real time; and the operator can adjust the power of the heating generator and the rotation speed of the rotating connecting rod (i.e., the sliding frequency of the heating element) through the control panel according to the characteristics of the raw materials, so as to achieve precise control of the heating intensity and uniformity.

[0008] A further improvement is that the hinged connecting rods are arranged in a circular array on the outer wall of the rotating plate, the outer wall of the rotating limiting rod is slidably connected to the inner wall of the limiting slide frame, and the outer wall of the limiting slider is slidably connected to the inner wall of the limiting slide groove opened in the limiting slide frame. During the heating process, the rotation adjustment mechanism is started synchronously to enhance the heating uniformity. The rotating connecting rod on the mounting frame rotates under the drive of external force, which drives the inner rotating plate to rotate synchronously. Since the hinged connecting rods are arranged in a circular array on the outer wall of the rotating plate, the rotation of the rotating plate will be converted into the pushing and pulling action of the hinged connecting rods, thereby driving the rotating limiting rod to slide back and forth in the limiting slide frame.

[0009] A further improvement is that the heating element is circumferentially arranged on the outer wall of the heating cylinder; the limiting slider cooperates with the sliding groove on the inner wall of the limiting slide frame to ensure that the rotating limiting rod always moves in a straight line; this sliding directly drives the heating element at the right end to change the distance between itself and the heating cylinder: when the heating element is close to the heating cylinder, it can enhance the local heating intensity and make up for the possible temperature trough inside the cylinder; when the heating element is far away, it can avoid local overheating and achieve dynamic temperature balance in conjunction with the annular heating field of the spiral heating ring tube.

[0010] A further improvement is that the spiral heating ring is connected to the inner wall of the top of the equipment body, and the spiral heating ring is sleeved on the outer wall of the heating plate and the heating cylinder. The spiral structure of the spiral heating ring sleeved on the outer wall of the heating plate and the heating cylinder can form a ring heating field, which can uniformly wrap the heating area from the outside, avoiding the problem of local high temperature caused by traditional single heating source. Another path is directly connected to the heating cylinder, so that heat can diffuse from the inside of the cylinder, forming a double heating situation with the external spiral heating ring, which initially breaks the temperature gradient of "external heat and internal cold" of traditional equipment.

[0011] A further improvement is that support legs are fixedly installed on both sides of the bottom of the device body.

[0012] By means of the above technical solution, this utility model provides a heat treatment device for plastic preprocessing, which has at least the following beneficial effects:

[0013] 1. This utility model effectively solves the problem of uneven heating in traditional equipment by constructing a multi-layered, adjustable heating system. The heat generated by the heating generator is transmitted through a communicating vessel in a dual-path manner. The spiral heating ring tube forms a ring-shaped heating field from the outside, and the inside of the heating cylinder receives direct heating. Combined with the surrounding heating and position adjustment of the heating elements, a three-dimensional heating network is formed. The rotating adjustment mechanism drives the heating elements to slide back and forth, which can dynamically balance the temperature and avoid local high temperatures or low temperatures. This ensures that all parts of the plastic raw material are heated evenly, effectively eliminates internal stress, stabilizes the molecular structure, significantly reduces the probability of cracking, deformation and other defects in subsequent processing, and significantly improves the quality of plastic products.

[0014] 2. The control panel of this utility model can monitor the temperature distribution inside the heating cylinder in real time. Operators can accurately adjust the power of the heating generator and the rotation speed of the connecting rod according to the characteristics of the raw materials, so as to achieve flexible control of heating intensity and uniformity. The operation is convenient and efficient. The partition plate reduces heat loss in the heating area, avoids energy waste, and the three-dimensional heating network can reach the required temperature in a short time, shorten the heat treatment time, improve production efficiency, meet the development needs of modern industrial energy conservation and efficiency, and enhance the practicality and economy of the equipment in actual production. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

[0019] Figure 3 This is a partially enlarged structural schematic diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the back side structure of this utility model.

[0021] In the diagram: 1. Equipment body; 2. Support leg; 3. Control panel; 4. Door; 5. Mounting frame; 6. Rotating linkage; 7. Turntable; 8. Rotating plate; 9. Hinge linkage; 10. Rotation limit rod; 11. Limiting slider; 12. Limiting slide frame; 13. Heating element; 14. Heating cylinder; 15. Mounting base; 16. Heating generator; 17. Communicating vessel; 18. Spiral heating ring tube; 19. Partition plate. 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. 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.

[0023] Due to variations in the packing state, shape, and thermal conductivity of plastic raw materials, the efficiency of heat transfer within the material varies significantly. Plastic raw materials concentrated in the central region tend to heat up slowly, while the surface layer near the heat source may have already reached or even exceeded the required temperature, creating a noticeable temperature gradient. This uneven heating directly leads to inconsistent heat treatment results for the plastic raw materials, severely impacting key indicators such as the strength and toughness of plastic products. This embodiment provides a heat treatment device for plastic pre-processing; please refer to [reference needed]. Figures 1-4The embodiment provides a heat treatment device for plastic processing, including a device body 1. A control panel 3 is fixedly installed on the front of the device body 1. A mounting frame 5 is fixedly connected to the left end of the device body 1. A rotating connecting rod 6 is rotatably connected to the inner wall of the mounting frame 5. A turntable 7 is fixedly connected to the outer end of the rotating connecting rod 6. A rotating plate 8 is fixedly connected to one inner end of the rotating connecting rod 6. A hinged connecting rod 9 is hinged to the outer wall of the rotating plate 8. A rotating limiting rod 10 is rotatably connected to one inner end of the hinged connecting rod 9. A heating plate 13 is fixedly connected to the right end of the rotating limiting rod 10. Limiting sliders 11 are fixedly connected to the outer walls of the front and rear ends of the rotating limiting rod 10. A limiting slide frame 12 is fixedly connected to the inner wall of the left side of the device body 1. A partition plate 19 is fixedly connected to the outer wall of the limiting slide frame 12. A heating cylinder 14 is fixedly connected to the right end of the limiting slide frame 12. A mounting base 15 is fixedly connected to the top of the device body 1. A heating generator 16 is fixedly installed, and a connecting device 17 is provided on both sides of the heating generator 16. A spiral heating ring tube 18 is provided at the bottom of the connecting device 17, and a heating cylinder 14 is provided at the outer end of the connecting device 17. A door 4 is hinged to the outer wall of the right end of the equipment body 1, and the door 4 is symmetrically arranged at the right end of the equipment body 1. The outer wall of the rotating connecting rod 6 is rotatably connected to the inner wall of the left end of the equipment body 1. The hinged connecting rod 9 is arranged in a circular array on the outer wall of the rotating plate 8. The outer wall of the rotating limiting rod 10 is slidably connected to the inner wall of the limiting slide frame 12, and the outer wall of the limiting slider 11 is slidably connected to the inner wall of the limiting slide groove opened in the limiting slide frame 12. The heating plate 13 is arranged in a circular array on the outer wall of the heating cylinder 14. The spiral heating ring tube 18 is provided on the inner wall of the top of the equipment body 1, and the spiral heating ring tube 18 is sleeved on the outer wall of the heating plate 13 and the heating cylinder 14. Support legs 2 are fixedly installed on both sides of the bottom of the equipment body 1.

[0024] Working principle: After the equipment is started, the core heat source is first provided by the heating generator 16 at the top of the mounting base 15. The heat generated by the heating generator 16 is transmitted through the two connecting pipes 17 on both sides in a dual-path transmission: one path leads to the spiral heating ring tube 18 at the bottom. Since the spiral heating ring tube 18 is sleeved on the outer wall of the heating plate 13 and the heating cylinder 14, its spiral structure can form a ring heating field, which uniformly wraps the heating area from the outside, avoiding the problem of local high temperature caused by the traditional single heating source; the other path directly connects to the heating cylinder 14, allowing the heat to diffuse from the inside of the cylinder, forming a double heating situation with the external spiral heating ring tube 18, initially breaking the temperature gradient of "external heat and internal cold" in traditional equipment.

[0025] During the heating process, the rotation adjustment mechanism is activated synchronously to enhance heating uniformity; the rotating connecting rod 6 on the mounting frame 5 rotates under external force, driving the inner rotating plate 8 to rotate synchronously; since the hinged connecting rods 9 are distributed in a circumferential array on the outer wall of the rotating plate 8, the rotation of the rotating plate 8 is converted into the pushing and pulling action of the hinged connecting rods 9, which in turn drives the rotating limiting rod 10 to reciprocate within the limiting slide frame 12; the limiting slider 11 cooperates with the sliding groove on the inner wall of the limiting slide frame 12 to ensure that the rotating limiting rod 10 always moves in a straight line; this sliding directly drives the heating plate 13 at the right end to change the distance between it and the heating cylinder 14: when the heating plate 13 is close to the heating cylinder 14, it can enhance the local heating intensity and compensate for the temperature trough that may occur inside the cylinder; when the heating plate 13 is far away, it can avoid local overheating and achieve dynamic temperature balance in conjunction with the annular heating field of the spiral heating ring tube 18.

[0026] The heating cylinder 14 serves as the core carrier of the plastic raw material. Its outer wall is heated by the surrounding heating plate 13, its periphery is heated by the spiral heating ring tube 18, and its interior is directly heated by the transmission of the communicating vessel 17. These three heating methods form a three-dimensional heating network. At the same time, the partition plate 19 is fixed to the outer wall of the limiting slide frame 12, which reduces heat loss in the heating area and avoids interference from the external environment on the internal temperature field, further ensuring heating stability.

[0027] The support legs 2 at the bottom of the equipment body 1 ensure the stability of the overall structure. The control panel 3 can monitor the temperature distribution inside the heating cylinder 14 in real time. Operators can adjust the power of the heating generator 16 and the rotation speed of the connecting rod 6, i.e. the sliding frequency of the heating plate 13, according to the characteristics of the raw materials through the control panel 3, so as to achieve precise control of the heating intensity and uniformity. After the heat treatment is completed, the raw materials can be taken out by opening the symmetrically arranged hatch 4 on the right side of the equipment body 1. The whole process completely solves the problem of uneven heating caused by the single heating method and rigid temperature adjustment of traditional equipment through the synergistic effect of multiple components.

[0028] It should be noted that, in this document, 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.

[0029] 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 heat treatment device for plastic preprocessing, comprising a device body (1), characterized in that: A control panel (3) is fixedly installed on the front of the device body (1). A mounting bracket (5) is fixedly connected to the left end of the device body (1). A rotating connecting rod (6) is rotatably connected to the inner wall of the mounting bracket (5). A turntable (7) is fixedly connected to the outer end of the rotating connecting rod (6). A rotating plate (8) is fixedly connected to one end of the inner side of the rotating connecting rod (6). A hinged connecting rod (9) is hinged to the outer wall of the outer side of the rotating plate (8). A rotating limiting rod (10) is rotatably connected to one end of the inner side of the hinged connecting rod (9). A heating element (13) is fixedly connected to the right end of the rotating limiting rod (10). A heating element (13) is fixedly connected to the outer wall of the front and rear ends of the rotating limiting rod (10). A limiting slider (11) is fixedly connected to the inner wall of the left side of the equipment body (1), a limiting slide frame (12) is fixedly connected to the outer wall of the limiting slide frame (12), a heating cylinder (14) is fixedly connected to the right end of the limiting slide frame (12), a mounting base (15) is fixedly connected to the top of the equipment body (1), a heating generator (16) is fixedly installed on the top of the mounting base (15), a communicating vessel (17) is provided on both sides of the heating generator (16), a spiral heating ring pipe (18) is provided at the bottom of the communicating vessel (17), and a heating cylinder (14) is provided at the outer end of the communicating vessel (17).

2. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: A hatch (4) is hinged to the outer wall of the right end of the equipment body (1), and the hatch (4) is symmetrically arranged at the right end of the equipment body (1).

3. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: The outer wall of the rotating connecting rod (6) is rotatably connected to the inner wall of the left end of the equipment body (1).

4. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: The hinged connecting rod (9) is arranged in a circular array on the outer wall of the rotating plate (8), the outer wall of the rotating limiting rod (10) is slidably connected to the inner wall of the limiting slide frame (12), and the outer wall of the limiting slider (11) is slidably connected to the inner wall of the limiting slide groove opened in the limiting slide frame (12).

5. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: The heating element (13) is circumferentially arranged on the outer wall of the heating cylinder (14).

6. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: The spiral heating ring tube (18) is connected to the inner wall of the top of the equipment body (1), and the spiral heating ring tube (18) is sleeved on the outer wall of the heating plate (13) and the heating cylinder (14).

7. The heat treatment equipment for plastic preprocessing according to claim 1, characterized in that: Support legs (2) are fixedly installed on both sides of the bottom of the device body (1).

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