Temperature control assembly for die head of film blowing machine

Abstract

The utility model provides a film blowing machine die head temperature control assembly which comprises a die head body, a die core is fixedly arranged in the top end of the die head body, a flow dividing cavity is formed between the circumference of the die core and the die head body, a feeding piece is fixedly arranged at the bottom of the die head body, and the top end of the feeding piece is fixedly connected with the die core. Through cooperative use of an inner cavity, a first heater, a second heater and a temperature sensor, the die head body can be preheated, the temperature of the die head body can also be controlled, the film quality and the production efficiency are guaranteed, and practicability is high; and through the arrangement of the heat insulation layer, heat insulation and heat preservation can be conducted on the air inlet pipe, so that the film blowing temperature is guaranteed, the film is conveniently cooled, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of die heads of blown film machines, and particularly relates to a temperature control component for the die head of a blown film machine. Background Art

[0002] The die head is an important part of a blown film machine. The temperature control of the die head can directly affect the quality of the film, etc. There are situations where the temperature is inconsistent or the raw material temperature is not close to the mold temperature, and often defective products are found after molding, resulting in waste.

[0003] However, the die head of the blown film machine needs to be preheated for a period of time before blowing film. When workers go to work, the blown film machine cannot be directly used, resulting in waste of working time and reduction of production efficiency.

[0004] Therefore, the utility model provides a temperature control component for the die head of a blown film machine. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a temperature control component for the die head of a blown film machine to solve the problems raised in the above background art. Through the combined use of the inner cavity, the first heater, the second heater and the temperature sensor provided by the utility model, the die head body can be preheated and the temperature of the die head body can also be controlled, ensuring the quality of the film and the production efficiency, and having high practicability.

[0006] To achieve the above purpose, the utility model is realized by the following technical solutions: A temperature control component for the die head of a blown film machine, including a die head body, a die core is fixedly arranged inside the top of the die head body, a flow splitting cavity is arranged between the circumference of the die core and the die head body, a feeding part is fixedly arranged at the bottom of the die head body, the top of the feeding part is fixedly connected with the die core, heat insulation layers are fixedly arranged on the outer wall and the outer bottom of the die head body, heat insulation layers are arranged between the feeding part and the die head body and the die core respectively, inner cavities are respectively opened on the side and the bottom of the die head body corresponding to the flow splitting cavity, the shape of the inner cavity is annular, a first heater and a second heater are respectively arranged inside the inner cavity, and a fixing hole is opened at the top of the die head body.

[0007] Furthermore, temperature sensors are fixedly arranged on one side and above the flow splitting cavity inside the die core respectively, and both the first heater and the second heater are spiral heaters.

[0008] Furthermore, a choke ring is arranged at the bottom of the flow splitting cavity corresponding to the inside of the die head body through an adjusting mechanism, and the adjusting mechanism includes an installation groove which is opened inside the die head body.

[0009] Further, an adjusting plate is arranged in the installation groove in a limited sliding manner, the flow blocking ring is fixedly arranged at the top of the adjusting plate, and an inclined surface is arranged at the bottom end of the adjusting plate.

[0010] Further, a spring is fixedly arranged at the top of one end of the adjusting plate, and the spring is fixedly arranged inside the installation groove.

[0011] Further, adjusting screws are installed in the inner parts at both ends of the die head main body through screw holes, one end of the adjusting screw contacts the inclined surface, and a knob is arranged at the outer end of the adjusting screw.

[0012] Further, a feed cavity is arranged inside the feeding part, and the top end of the feed cavity is communicated with the shunt cavity.

[0013] Further, an air inlet pipe is fixedly arranged inside the feeding part in an inclined manner, a circular inner cavity is arranged at the central position inside the die core, an annular air outlet is arranged at the top of the circular inner cavity, and the air inlet pipe is fixedly communicated with the circular inner cavity.

[0014] The beneficial effects of the present utility model: The temperature control component of the die head of the blown film machine of the present utility model can preheat the die head main body and control the temperature of the die head main body through the cooperation of the inner cavity, the first heater, the second heater and the temperature sensor, ensuring the quality of the film and the production efficiency, and having high practicability; through the arranged heat insulation layer, the air inlet pipe can be heat-insulated and heat-preserved, thereby ensuring the temperature of the blown film, facilitating the cooling of the film, and preventing the die head main body from affecting the operator, and having high practicability. Description of the Drawings

[0015] Figure 1 It is a structural diagram of the temperature control component of the die head of the blown film machine of the present utility model;

[0016] Figure 2 It is a front sectional view of the temperature control component of the die head of the blown film machine of the present utility model;

[0017] Figure 3 It is the Figure 2 enlarged view at A of the temperature control component of the die head of the blown film machine of the present utility model;

[0018] Figure 4 It is a structural diagram of the feeding part of the temperature control component of the die head of the blown film machine of the present utility model;

[0019] In the figure: 1. Die head body; 2. Die core; 3. Feeding part; 4. Heat insulation layer; 5. Adjusting mechanism; 6. Fixing hole; 7. Annular air outlet; 8. Circular inner cavity; 9. First heater; 10. Second heater; 11. Temperature sensor; 12. Feeding cavity; 13. Air inlet pipe; 14. Adjusting screw; 15. Shunt cavity; 16. Flow blocking ring; 17. Adjusting plate; 18. Spring. Specific implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a temperature control component of a blown film die head, including a die head body 1, a die core 2 is fixedly arranged inside the top end of the die head body 1, a shunt cavity 15 is arranged between the circumference of the die core 2 and the die head body 1, a feeding part 3 is fixedly arranged at the bottom of the die head body 1, the top end of the feeding part 3 is fixedly connected with the die core 2, a heat insulation layer 4 is fixedly arranged on the outer wall and the outer bottom of the die head body 1, and heat insulation layers 4 are arranged between the feeding part 3 and the die head body 1 and the die core 2 respectively. Inner cavities are respectively opened on the side and bottom of the die head body 1 corresponding to the shunt cavity 15, the shape of the inner cavity is annular, a first heater 9 and a second heater 10 are respectively arranged inside the inner cavity, a fixing hole 6 is opened at the top of the die head body 1, the first heater 9 and the second heater 10 can heat the die head body 1 with residual heat and can heat the die head body 1 to ensure the temperature required for blown film, and the arranged heat insulation layer 4 can prevent the die head body 1 from causing harm to the operator.

[0022] In this embodiment, temperature sensors 11 are fixedly arranged on one side and above the shunt cavity 15 inside the die core 2 respectively, the first heater 9 and the second heater 10 are both spiral heaters, and the temperature inside the die head body 1 can be monitored through the temperature sensors 11, so as to facilitate the precise control of the temperature of the die head body 1, and the practicability is high.

[0023] In this embodiment, a choke ring 16 is provided at the bottom of the flow splitting cavity 15 corresponding to the inside of the die head body 1 through an adjusting mechanism 5. The adjusting mechanism 5 includes an installation groove which is opened inside the die head body 1. An adjusting plate 17 is slidably and limitably arranged inside the installation groove. The choke ring 16 is fixedly arranged at the top of the adjusting plate 17. The bottom end of the adjusting plate 17 is provided with an inclined surface. A spring 18 is fixedly arranged at the top of one end of the adjusting plate 17, and the spring 18 is fixedly arranged inside the installation groove. The adjusting screws 14 are screwed and installed inside the two ends of the die head body 1 through screw holes. One end of the adjusting screw 14 contacts the inclined surface. A knob is arranged at the outer end of the adjusting screw 14. The inclined surface can be squeezed through the knob and the adjusting screw 14, so that the choke ring 16 can be conveniently lifted and adjusted through the adjusting plate 17, thereby controlling the film material inside the flow splitting cavity 15. The arranged spring 18 can assist the choke ring 16 to rebound.

[0024] In this embodiment, a feed cavity 12 is arranged inside the feed member 3. The top end of the feed cavity 12 is communicated with the flow splitting cavity 15. An air inlet pipe 13 is fixedly arranged inside the feed member 3 in an inclined manner. A circular inner cavity 8 is opened at the central position inside the die core 2. An annular air outlet 7 is arranged at the top of the circular inner cavity 8. The air inlet pipe 13 is fixedly communicated with the circular inner cavity 8. Air can be introduced into the circular inner cavity 8 through the air inlet pipe 13 and discharged from the annular air outlet 7, which is convenient for uniformly blowing air on the film and ensuring the uniformity of film blowing.

[0025] When using this film blowing die head temperature control component, the die head body 1 is fixed on the top of the extruder head through the fixing hole 6. The feed member 3 is fixedly communicated with the discharge port of the extruder head. The air inlet pipe 13 is fixedly communicated with a blower or the like. A timer is arranged on the outside. The temperature control component is started regularly through the timer to supply power to the first heater 9 and the second heater 10. The die head body 1 is preheated through the first heater 9 and the second heater 10 to ensure the temperature of film blowing. Rotate the knob, and the inclined surface is squeezed through the knob and the adjusting screw 14, so that the adjusting plate 17 slides and rises inside the installation groove. The adjusting plate 17 drives the choke ring 16 to rise, thereby controlling the film material entering the flow splitting cavity 15. The temperature inside the die head body 1 is monitored through the temperature sensor 11, which is convenient for controlling the temperature of the die head body 1, ensuring the quality of the film and the production efficiency, and having high practicability; air enters the circular inner cavity 8 through the air inlet pipe 13 and blows towards the film material through the annular air outlet 7. Through the arranged heat insulation layer 4, the air inlet pipe 13 can be heat-insulated and temperature-controlled, thereby ensuring the temperature of film blowing, facilitating the cooling of the film, and preventing the die head body 1 from affecting the operator, and having high practicability.

[0026] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard 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 film blowing machine die head temperature control assembly, comprising a die head body (1), characterized in that: A core (2) is fixedly arranged inside the top of the die body (1), a diversion cavity (15) is arranged between the circumference of the core (2) and the die body (1), a feed piece (3) is fixedly arranged at the bottom of the die body (1), the top of the feed piece (3) is fixedly connected to the core (2), a heat insulation layer (4) is fixedly arranged on the outer side of the outer wall and the bottom wall of the die body (1), and a heat insulation layer (4) is arranged between the feed piece (3) and the die body (1) and the core (2), an inner cavity is respectively opened inside the die body (1) corresponding to the side and bottom of the diversion cavity (15), the inner cavity is annular in shape, a first heater (9) and a second heater (10) are respectively arranged inside the inner cavity, and a fixing hole (6) is opened at the top of the die body (1).

2. A film blowing machine die head temperature control assembly according to claim 1, characterized in that: Temperature sensors (11) are fixedly arranged on one side and on the upper position of the inner portion of the mold core (2) corresponding to the diversion cavity (15); the first heater (9) and the second heater (10) are both spiral heaters.

3. The film blowing machine die head temperature control assembly according to claim 1, characterized in that: The bottom of the diversion cavity (15) corresponds to the interior of the die body (1) and is provided with a flow blocking ring (16) through an adjustment mechanism (5). The adjustment mechanism (5) comprises a mounting groove, and the mounting groove is provided inside the die body (1).

4. A film blowing machine die head temperature control assembly according to claim 3, characterized in that: An adjustment plate (17) is provided inside the installation groove for limited sliding, the baffle ring (16) is fixedly arranged on the top of the adjustment plate (17), and the bottom end of the adjustment plate (17) is provided with an inclined surface.

5. A film blowing machine die head temperature control assembly according to claim 4, characterized in that: A spring (18) is fixedly arranged at the top of one end of the adjustment plate (17), and the spring (18) is fixedly arranged inside the installation groove.

6. A film blowing machine die head temperature control assembly according to claim 5, characterized in that: Adjusting screws (14) are screwed and installed inside the two ends of the die body (1) through screw holes, one end of the adjusting screw (14) is in contact with the inclined surface, and a knob is arranged at the outer end of the adjusting screw (14).

7. The film blowing machine die head temperature control assembly according to claim 1, characterized in that: A feeding cavity (12) is provided inside the feeding member (3), and the top end of the feeding cavity (12) is communicated with the diversion cavity (15).

8. A film blowing machine die head temperature control assembly according to claim 7, characterized in that: An air inlet pipe (13) is fixedly arranged inside the feed piece (3) at an angle, a circular inner cavity (8) is opened at the inner center of the mold core (2), an annular air outlet (7) is arranged at the top of the circular inner cavity (8), and the air inlet pipe (13) is fixedly connected to the circular inner cavity (8).

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