A heating mechanism for a blown film machine

Abstract

This utility model discloses a heating mechanism for a blown film machine, comprising: a base plate; a heating box fixedly connected to the upper surface of the base plate; a feed pipe connected to the upper surface of the heating box; a funnel fixedly connected to the other end of the feed pipe; a rocker arm rotatably connected to the inner surface of the heating box; four paddle rods mounted on the rocker arm; a fixing plate fixedly connected to the inner surface of the heating box; a fixing rod fixedly connected to the upper surface of the fixing plate; heating plates fixedly connected to the inner surface of the heating box; a discharge pipe connected to the lower surface of the heating box; and a motor fixedly connected to the lower surface of the heating box. The rocker arm is driven by the motor. This structure effectively avoids the problems of localized overheating or insufficient heating that easily occur in traditional heating methods, ensuring that the raw material is heated sufficiently and consistently during the heating process, providing a more stable raw material foundation for subsequent processing and molding.

Description

Technical Field

[0001] This utility model relates to the field of heating mechanism technology, and in particular to a heating mechanism for a blown film machine. Background Technology

[0002] In traditional blown film machines, the heating of plastic raw materials relies heavily on static heating of the heating chamber by heating elements. Due to the lack of effective dynamic intervention within the heating chamber, the raw materials often form localized static areas due to their own gravity or accumulation, leading to significant differences in heat transfer. Raw materials near the heating elements are prone to localized overheating due to continuous heating, potentially resulting in charring or degradation, affecting their physical properties. Conversely, raw materials farther from the heating elements may experience insufficient plasticization due to insufficient heat, forming unmelted particles or lumps. This uneven heating not only causes fluctuations in raw material quality but also directly affects the stability of subsequent extrusion and blown film processes, resulting in defects such as uneven film thickness, crystal points, and bubbles, reducing product yield. Furthermore, the unstable heating of the raw materials increases energy consumption, hindering production efficiency. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art and to provide a heating mechanism for a blown film machine.

[0004] This utility model also provides a heating mechanism for a blown film machine as described above, comprising: a base plate, a heating box fixedly connected to the upper surface of the base plate, a feed pipe connected to the upper surface of the heating box, a funnel fixedly connected to the other end of the feed pipe, a rocker arm rotatably connected to the inner surface of the heating box, four paddles mounted on the rocker arm, a fixing plate fixedly connected to the inner surface of the heating box, a fixing rod fixedly connected to the upper surface of the fixing plate, heating plates fixedly connected to the inner surface of the heating box, and a discharge pipe connected to the lower surface of the heating box.

[0005] Preferably, a motor is fixedly connected to the lower surface of the heating box, and the rocker arm is driven by the motor.

[0006] Preferably, a support leg is fixedly connected to the lower surface of the base plate, and a base is fixedly connected to the lower surface of the support leg.

[0007] Preferably, the base is provided with a flexible board, and the flexible board is made of rubber.

[0008] Preferably, the heating box is provided with an insertion hole, and an observation window is fixedly connected to the inner surface of the insertion hole.

[0009] Preferably, the support leg and the base plate are provided with threaded holes, and the inner surface of the threaded holes is threaded with nuts.

[0010] Preferably, the heating element is located below the fixing plate, and the fixing rod is located above the fixing plate.

[0011] Preferably, a valve is provided on the discharge pipe.

[0012] Beneficial effects: It effectively avoids the problems of local overheating or underheating that are prone to occur in traditional heating methods, ensuring that the raw materials are heated fully and evenly during the heating process, providing a more stable raw material foundation for subsequent processing and molding.

[0013] The heating mechanism of the blown film machine in this technical solution involves the operator injecting the raw material into the heating box through the feed pipe. The heating element heats the raw material inside the heating box. The motor is started, and the motor drives the rocker arm to control the rotation of the paddle rod, so that the raw material inside the heating box is heated more evenly. After heating is completed, the operator turns the valve to discharge the material. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view structural diagram of the heating mechanism of the blown film machine of this utility model; Figure 2 This is a left-side structural view of the heating mechanism of the blown film machine of this utility model; Figure 3 This is a top cross-sectional view of the heating mechanism of the blown film machine of this utility model; Figure 4 This is a right-side cross-sectional view of the heating mechanism of the blown film machine of this utility model; Legend: 1. Heating box; 2. Insertion hole; 3. Observation window; 4. Base plate; 5. Nut; 6. Threaded hole; 7. Support leg; 8. Base; 9. Flexible plate; 10. Feed pipe; 11. Funnel; 12. Motor; 13. Rocker arm; 14. Paddle rod; 15. Fixing rod; 16. Valve 1; 17. Discharge pipe; 18. Heating element; 19. Fixing plate. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Reference Figure 1-4This utility model discloses a heating mechanism for a blown film machine, comprising: a base plate 4, a heating box 1 fixedly connected to the upper surface of the base plate 4, a feed pipe 10 connected to the upper surface of the heating box 1, a funnel 11 fixedly connected to the other end of the feed pipe 10, a rocker arm 13 rotatably connected to the inner surface of the heating box 1, four paddle rods 14 provided on the rocker arm 13, a fixing plate 19 fixedly connected to the inner surface of the heating box 1, a fixing rod 15 fixedly connected to the upper surface of the fixing plate 19, a heating element 18 fixedly connected to the inner surface of the heating box 1, and a discharge pipe 17 connected to the lower surface of the heating box 1.

[0017] Specifically: The operator injects the raw material into the heating box 1 through the feed pipe 10. The heating element 18 heats the raw material inside the heating box 1. The motor 12 is started, and the motor 12 drives the rocker arm 13 to control the paddle arm 14 to rotate, so that the raw material inside the heating box 1 is heated more evenly. After heating is completed, the operator turns the valve 16 to discharge the material.

[0018] A motor 12 is fixedly connected to the lower surface of the heating box 1. The rocker arm 13 is driven by the motor 12. A support leg 7 is fixedly connected to the lower surface of the base plate 4. A base 8 is fixedly connected to the lower surface of the support leg 7. A flexible plate 9 is provided on the base 8. The flexible plate 9 is made of rubber. An insertion hole 2 is provided on the heating box 1. An observation window 3 is fixedly connected to the inner surface of the insertion hole 2. Threaded holes 6 are provided on both the support leg 7 and the base plate 4. Nuts 5 are threadedly connected to the inner surface of the threaded holes 6. The heating element 18 is located below the fixed plate 19. The fixing rod 15 is located above the fixed plate 19. A valve 16 is provided on the discharge pipe 17.

[0019] Specifically: The motor 12 drives the rocker arm 13 to control the rotation of the paddle arm 14, which can continuously and comprehensively stir the raw materials in the heating box. This allows the raw materials, which may have local temperature differences due to being stationary, to continuously flow and mix. This enables the heat released by the heating element to be more evenly transferred to each part of the raw materials, effectively avoiding the problems of local overheating or underheating that are prone to occur in traditional heating methods. It ensures that the raw materials are heated fully and consistently during the heating process, providing a more stable raw material foundation for subsequent processing and molding.

[0020] Working principle: The operator injects the raw material into the heating box 1 through the feed pipe 10. The heating element 18 heats the raw material inside the heating box 1. The motor 12 is started, and the motor 12 drives the rocker arm 13 to control the paddle arm 14 to rotate, so that the raw material inside the heating box 1 is heated more evenly. After heating is completed, the operator turns the valve 16 to discharge the material.

[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A film blowing machine heating mechanism characterized by, include: A base plate (4) is fixedly connected to a heating box (1) on its upper surface. A feed pipe (10) is connected to the upper surface of the heating box (1). A funnel (11) is fixedly connected to the other end of the feed pipe (10). A rocker arm (13) is rotatably connected to the inner surface of the heating box (1). Four paddles (14) are provided on the rocker arm (13). A fixing plate (19) is fixedly connected to the inner surface of the heating box (1). A fixing rod (15) is fixedly connected to the upper surface of the fixing plate (19). A heating element (18) is fixedly connected to the inner surface of the heating box (1). A discharge pipe (17) is connected to the lower surface of the heating box (1).

2. The heating mechanism of a film blowing machine according to claim 1, wherein, A motor (12) is fixedly connected to the lower surface of the heating box (1), and the rocker arm (13) is driven by the motor (12).

3. The heating mechanism of a film blowing machine according to claim 1, wherein, The lower surface of the base plate (4) is fixedly connected to a support leg (7), and the lower surface of the support leg (7) is fixedly connected to a base (8).

4. The film blowing machine heating mechanism according to claim 3, wherein A flexible plate (9) is provided on the base (8), and the flexible plate (9) is made of rubber.

5. The film blowing machine heating mechanism according to claim 1, wherein The heating box (1) is provided with a socket (2), and an observation window (3) is fixedly connected to the inner surface of the socket (2).

6. The film blowing machine heating mechanism according to claim 3, wherein The support leg (7) and the base plate (4) are both provided with threaded holes (6), and the inner surface of the threaded hole (6) is threaded with a nut (5).

7. The film blowing machine heating mechanism according to claim 1, wherein, The heating element (18) is located below the fixing plate (19), and the fixing rod (15) is located above the fixing plate (19).

8. The film blowing machine heating mechanism according to claim 1, wherein, A valve (16) is installed on the discharge pipe (17).

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