High polymer material preheating device

Abstract

The utility model relates to the technical field of high polymer material processing, in particular to a high polymer material preheating device which comprises a preheating cavity. The fixing plate is fixedly connected to the lower end of the preheating cavity; the inner gear ring is attached to the lower end of the fixing plate; the connecting plate is fixedly connected to the lower end of the inner gear ring; the rotating disc is fixedly connected to the lower end of the connecting plate; the sealing cover is arranged at the upper end of the preheating cavity; according to the iris discharging device, a mechanical linkage type discharging structure composed of a rotary disc, an inner gear ring, a sector gear and iris blocks is arranged, continuous adjustment and automatic control over the size of a discharging opening are achieved, an operator only needs to rotate the rotary disc, and the multiple sets of iris blocks can be synchronously driven to be folded or unfolded; therefore, the size of the discharging port is changed, the feeding requirements under different machining scenes are met, and the accuracy and stability of discharging are improved.

Description

Technical Field

[0001] This utility model relates to the field of polymer material processing technology, and in particular to a polymer material preheating device. Background Technology

[0002] Currently, in the processing of polymer materials, such as injection molding, extrusion, and compression molding, it is usually necessary to preheat and dry the raw materials before processing. This process aims to remove moisture from the materials, improve their fluidity, and give them good processing performance.

[0003] Most existing polymer material preheating devices use fixed discharge ports, which cannot flexibly adjust the discharge rate according to production needs, and are prone to unstable material supply or blockage. Utility Model Content

[0004] The purpose of this utility model is to provide a polymer material preheating device to solve the above problems. It improves the problem that most polymer material preheating devices use a fixed discharge port, which cannot flexibly adjust the discharge amount according to production needs, and is prone to unstable material supply or blockage.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a polymer material preheating device, comprising:

[0006] Preheating chamber;

[0007] A fixing plate is fixedly connected to the lower end of the preheating chamber;

[0008] An internal gear ring, which is attached to the lower end of the fixing plate;

[0009] A connecting plate, which is fixedly connected to the lower end of the internal gear ring;

[0010] A rotating disk, which is fixedly connected to the lower end of a connecting plate;

[0011] A sealing cap, wherein the sealing cap is disposed at the upper end of the preheating chamber;

[0012] The iris feeding mechanism comprises four sets, each set including a connecting rod, a sector gear, an iris block, a rotating hole, a limiting hole, and a limiting rod. The connecting rod is fixedly connected to the upper end of the connecting plate. The sector gear is rotatably connected to the circumferential surface of the connecting rod and meshes with an internal gear ring. The iris block is fixedly connected to the upper end of the sector gear. The rotating hole is located at the upper end of the iris block and is rotatably connected to the circumferential surface of the connecting rod. The limiting hole is located on the surface of the iris block. The upper end of the limiting rod is fixedly connected to the lower end of the fixed plate, and the lower end of the limiting rod is fixedly connected to the upper end of the connecting plate. The limiting hole is rotatably connected to the circumferential surface of the limiting rod.

[0013] A stirring assembly is disposed at the lower end of the sealing cover to achieve uniform stirring of the polymer material in the preheating chamber.

[0014] Preferably, the stirring assembly includes a motor, a rotating rod, and a stirring frame. The motor is fixedly connected to the upper end of the sealing cover, the rotating rod is fixedly connected to the output shaft of the motor, and the stirring frame is fixedly connected to the circumferential surface of the rotating rod.

[0015] Preferably, a sealing groove is provided at the upper end of the preheating chamber, and a rubber block is fixedly connected to the lower end of the sealing cover, the rubber block matching the sealing groove.

[0016] Preferably, a heat insulation shell is fixedly connected to the upper end of the fixing plate, and four heating plates are respectively installed on the inner circumference of the heat insulation shell.

[0017] Preferably, the upper end of the sealing cap is fixedly connected to two handles, and the edges of the two handles are designed with rounded corners.

[0018] Preferably, the surface of the fixing plate has four mounting holes.

[0019] The beneficial effects of this utility model are:

[0020] 1. This device achieves continuous adjustment and automatic control of the discharge port size by setting up a mechanical linkage feeding structure composed of a rotary disc, an internal gear ring, a sector gear and iris blocks. The operator only needs to rotate the rotary disc to drive multiple sets of iris blocks to retract or open simultaneously, thereby changing the discharge port size to meet the feeding needs of different processing scenarios and improve the accuracy and stability of feeding.

[0021] 2. This device has a stirring assembly consisting of a motor, a rotating rod and a stirring frame installed below the sealing cover. This assembly can continuously stir the material during the heating process, preventing local overheating or uneven temperature due to accumulation, and greatly improving the preheating effect. Attached Figure Description

[0022] Figure 1 This is a front perspective view of the present invention;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 This is the first exploded view of this utility model;

[0025] Figure 4 This is the second exploded view of this utility model.

[0026] In the diagram: 1. Preheating chamber; 2. Fixing plate; 3. Internal gear ring; 4. Connecting plate; 5. Connecting rod; 6. Sector gear; 7. Iris block; 8. Rotating hole; 9. Limiting hole; 10. Limiting rod; 11. Rotating disc; 12. Sealing cover; 13. Motor; 14. Rotating rod; 15. Stirring rack; 16. Sealing groove; 17. Rubber block; 18. Heat insulation shell; 19. Heating plate; 20. Handle; 21. Mounting hole. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figure 1-4 The present invention provides the following technical solution:

[0030] A polymer material preheating device, comprising:

[0031] Preheating chamber 1;

[0032] Fixing plate 2 is fixedly connected to the lower end of preheating chamber 1;

[0033] Internal gear ring 3, which is attached to the lower end of the fixing plate 2;

[0034] Connecting plate 4 is fixedly connected to the lower end of internal gear ring 3;

[0035] Rotary disc 11 is fixedly connected to the lower end of connecting plate 4;

[0036] Sealing cover 12, which is located at the upper end of the preheating chamber 1;

[0037] The iris feeding mechanism consists of four sets. Each set includes a connecting rod 5, a sector gear 6, an iris block 7, a rotating hole 8, a limiting hole 9, and a limiting rod 10. The connecting rod 5 is fixedly connected to the upper end of the connecting plate 4. The sector gear 6 is rotatably connected to the circumferential surface of the connecting rod 5 and meshes with the internal gear ring 3. The iris block 7 is fixedly connected to the upper end of the sector gear 6. The rotating hole 8 is opened at the upper end of the iris block 7 and is rotatably connected to the circumferential surface of the connecting rod 5. The limiting hole 9 is opened on the surface of the iris block 7. The upper end of the limiting rod 10 is fixedly connected to the lower end of the fixed plate 2, and the lower end of the limiting rod 10 is fixedly connected to the upper end of the connecting plate 4. The limiting hole 9 is rotatably connected to the circumferential surface of the limiting rod 10.

[0038] A stirring assembly is located at the lower end of the sealing cover 12 to achieve uniform stirring of the polymer material in the preheating chamber 1.

[0039] In a specific embodiment of this utility model, the preheating chamber 1 is the core heating area of ​​the entire device; the fixing plate 2 serves as a support platform and provides heat insulation; the internal gear ring 3 meshes with the sector gear 6 to transmit rotational power; the connecting plate 4 supports the feeding assembly; the rotating disc 11 allows the operator to manually rotate and control the opening and closing of the feeding assembly; the sealing cover 12 prevents heat loss and maintains a stable preheating environment; the connecting rod 5 supports the rotation of the sector gear 6 and the iris block 7; the sector gear 6 meshes with the internal gear ring 3 to transmit power to the iris block 7; the iris block 7 controls the opening and closing of the feeding assembly by retracting or opening outwards; the rotating hole 8 allows the iris block 7 to swing around the connecting rod 5; and the limiting hole 9 accommodates a limiting position. Rod 10, a limiting rod 10, is fixedly connected at both ends to the fixing plate 2 and the connecting plate 4 respectively. The limiting hole 9 is slidably sleeved on its circumferential surface to form a guide limit. When the operator rotates the rotary table 11, it drives the connecting plate 4 and the internal gear ring 3 to rotate synchronously. Since the internal gear ring 3 meshes with the four sector gears 6, each sector gear 6 will rotate accordingly, driving the iris block 7 to slide along the limiting rod 10 and to retract inward or open outward around the central axis. The four iris blocks 7 move synchronously, thereby changing the size of the feed port and realizing the continuous adjustment or complete closure of the feed port. The stirring component is set at the lower end of the sealing cover 12 to realize the uniform stirring of the polymer material in the preheating chamber 1, so that the polymer material will not accumulate and improve the heating uniformity of the material during the preheating process.

[0040] Please refer to the details. Figure 1-4 The stirring assembly includes a motor 13, a rotating rod 14, and a stirring frame 15. The motor 13 is fixedly connected to the upper end of the sealing cover 12, the rotating rod 14 is fixedly connected to the output shaft of the motor 13, and the stirring frame 15 is fixedly connected to the circumferential surface of the rotating rod 14.

[0041] In this embodiment: the motor 13 is used to drive the rotating rod 14 to rotate, the rotating rod 14 is used to drive the stirring frame 15 to rotate, and the stirring frame 15 is used to stir the polymer material to prevent accumulation. The rotating rod 14 is driven by the motor 13 to rotate, thereby driving the stirring frame 15 to perform low-speed stirring in the preheating chamber 1, so that heat can be quickly and evenly transferred to all material particles.

[0042] Please refer to the details. Figure 1-4 A sealing groove 16 is provided at the upper end of the preheating chamber 1, and a rubber block 17 is fixedly connected to the lower end of the sealing cover 12. The rubber block 17 matches the sealing groove 16.

[0043] In this embodiment: the sealing groove 16 is used to accommodate the rubber block 17. The shape of the rubber block 17 matches the sealing groove 16. It is made of elastic high-temperature resistant silicone rubber and has a certain compression resilience. When the sealing cover 12 is closed and pressed, the rubber block 17 is completely embedded in the sealing groove 16. It uses its deformation ability to fill the gap, achieve a reliable sealing effect, prevent the leakage of polymer powder or volatile gas, and avoid polluting the experimental environment or affecting the health of the operators.

[0044] Please refer to the details. Figure 1-4 The upper end of the fixed plate 2 is fixedly connected to the heat insulation shell 18, and four heating plates 19 are respectively installed on the inner circumference of the heat insulation shell 18.

[0045] In this embodiment: the heat insulation shell 18 is made of a high-temperature resistant, low thermal conductivity composite material and is used to wrap the preheating cavity 1 to prevent heat from spreading outward. The heating plate 19 is symmetrically distributed inside the heat insulation shell 18 and is an electric heating wire embedded heating plate 19. It is used to heat the polymer material in the preheating cavity 1 in multiple directions and uniformly, thereby improving heating efficiency and temperature control accuracy. It should be noted that the installation and use of the heating plate 19 in this solution is existing technology and will not be described in detail here.

[0046] Please refer to the details. Figure 1-4 Two handles 20 are fixedly connected to the upper end of the sealing cover 12, and the edges of the two handles 20 are designed with rounded corners.

[0047] In this embodiment, handles 20 are symmetrically distributed on both sides of the sealing cover 12, making it convenient for personnel to open or close the sealing cover 12 with both hands. The edges of the two handles 20 are designed with rounded corners, that is, without sharp edges, and have a smooth transition structure, which improves grip comfort and safety. Their function is to enhance the ease of operation and personnel safety during the use of the equipment.

[0048] Please refer to the details. Figure 1-4 The surface of the fixing plate 2 has four mounting holes 21.

[0049] In this embodiment, the mounting holes 21 are symmetrically distributed at the four corners of the fixing plate 2, which facilitates fixing with standard bolts or connectors and makes it easy to fix to the workbench, bracket or other processing system.

[0050] Fix the device to the experimental table or production line support through the four mounting holes 21 on the fixing plate 2. Hold the handle 20 and lift the sealing cover 12 vertically upwards. After the sealing cover 12 is opened, the top opening of the preheating chamber 1 is exposed, which facilitates the feeding operation. Pour the polymer particles or powder to be preheated into the preheating chamber 1 through the opening. Replace the sealing cover 12 on top of the preheating chamber 1. The rubber block 17 is embedded in the sealing groove 16 to form good airtightness. Activate the four heating plates 19 on the inner wall of the heat insulation shell 18 and set the required temperature. The heating plates 19 are arranged in a ring to achieve multi-directional uniform heating. The heating process is uniform, shortening the heating time. Then, the motor 13 is turned on to drive the rotating rod 14 to rotate. The stirring rack 15 rotates synchronously with the rotating rod 14, continuously stirring the polymer material in the preheating chamber 1. The stirring process prevents material accumulation, improves heating uniformity, and avoids local overheating or clumping. When it is necessary to discharge the material, the operator manually rotates the rotary table 11, which drives the connecting plate 4 and the internal gear ring 3 to rotate synchronously. The internal gear ring 3 drives the four sector gears 6 to rotate in linkage, causing the iris blocks 7 to close or open. Multiple iris blocks 7 move synchronously, changing the size of the discharge port and realizing continuous adjustment or complete closure of the feed port.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A preheating device for polymer materials, characterized in that, include: Preheating chamber (1); A fixing plate (2) is fixedly connected to the lower end of the preheating chamber (1); An internal gear ring (3) is attached to the lower end of a fixing plate (2); Connecting plate (4), which is fixedly connected to the lower end of the internal gear ring (3); Spinning disc (11), which is fixedly connected to the lower end of connecting plate (4); A sealing cover (12) is disposed at the upper end of the preheating chamber (1); The iris feeding mechanism comprises four sets, each set including a connecting rod (5), a sector gear (6), an iris block (7), a rotating hole (8), a limiting hole (9), and a limiting rod (10). The connecting rod (5) is fixedly connected to the upper end of the connecting plate (4), the sector gear (6) is rotatably connected to the circumferential surface of the connecting rod (5), the sector gear (6) meshes with the internal gear ring (3), and the iris block (7) is fixedly connected to... At the upper end of the sector gear (6), the rotating hole (8) is opened at the upper end of the iris block (7), the rotating hole (8) is rotatably connected to the circumferential surface of the connecting rod (5), the limiting hole (9) is opened on the surface of the iris block (7), the upper end of the limiting rod (10) is fixedly connected to the lower end of the fixing plate (2), the lower end of the limiting rod (10) is fixedly connected to the upper end of the connecting plate (4), and the limiting hole (9) is rotatably connected to the circumferential surface of the limiting rod (10). A stirring assembly is provided at the lower end of the sealing cover (12) to achieve uniform stirring of the polymer material in the preheating chamber (1).

2. The polymer material preheating device according to claim 1, characterized in that: The stirring assembly includes a motor (13), a rotating rod (14), and a stirring frame (15). The motor (13) is fixedly connected to the upper end of the sealing cover (12), the rotating rod (14) is fixedly connected to the output shaft of the motor (13), and the stirring frame (15) is fixedly connected to the circumferential surface of the rotating rod (14).

3. The polymer material preheating device according to claim 1, characterized in that: The upper end of the preheating chamber (1) is provided with a sealing groove (16), and the lower end of the sealing cover (12) is fixedly connected with a rubber block (17), which matches the sealing groove (16).

4. The polymer material preheating device according to claim 1, characterized in that: The upper end of the fixed plate (2) is fixedly connected to a heat insulation shell (18), and four heating plates (19) are respectively installed on the inner circumference of the heat insulation shell (18).

5. The polymer material preheating device according to claim 4, characterized in that: The upper end of the sealing cap (12) is fixedly connected to two handles (20), and the edges of the two handles (20) are designed with rounded corners.

6. The polymer material preheating device according to claim 1, characterized in that: The surface of the fixing plate (2) is provided with four mounting holes (21).

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