Cylinder type heater

Abstract

The utility model discloses a cylinder type heater, which comprises a heater body provided with a U-shaped groove; the convolution roller is rotationally arranged in the U-shaped groove, and a coil stock is convolved on the convolution roller; the transmission part is arranged in the heater body, one end of the transmission part is rotationally connected with the convolution roller, and the transmission part is used for driving the convolution roller to rotate; the protection part is rotationally arranged at the top end of the U-shaped groove and is used for protecting the convolution roller and restraining the movement of the coil stock; according to the utility model, through the mutual cooperation of the convolution roller, the transmission part and the protection part, the coil stock on the convolution roller clings to and wraps the heating end of the heater body, when the heater works, the heater conducts heat to the coil stock, and then the coil stock transfers the heat to a grinding tool; the outer wall of the heating end of the heater is protected through friction between the coil stock and the inner wall of the mounting hole, so that the abrasion degree of the heater is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a barrel heater. Background Art

[0002] A barrel heater is an efficient electric heating element, which is commonly used in the heating processes of various-sized molds and mechanical equipment, and is also widely used in the hot processing fields of various liquids, gases, and solid substances.

[0003] When the barrel heater is used for hot processing of a mold, installation holes for positioning the barrel heater are usually reserved on the mold. The heating end of the heater can be inserted into the installation hole to heat a predetermined position of the mold. To ensure the heating efficiency, the gap between the heater and the installation hole is minimized when the installation hole is opened. When the heater is inserted into the installation hole, thermal conductive glue is used to fill the gap to ensure that the heater can heat the mold better. However, when the heater is taken out after heating, the cured thermal conductive glue will remain on the heater. And due to the small gap between the heater and the installation hole, when the heater is taken out, the outer wall of the heater is likely to rub against the inner wall of the installation hole, thus wearing the heating end of the heater and even affecting the service life of the heater. Therefore, this application specifically proposes a barrel heater that can protect the surface of the heating end. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a barrel heater that can protect the surface of the heating end.

[0005] To achieve the above purpose, the utility model provides a barrel heater, including:

[0006] A heater body, on the heating end of which a U-shaped groove is provided along the length direction of the heater body;

[0007] A convolution roller, rotatably arranged in the U-shaped groove, on which a flexible and heat-conductive coil is wound. One end of the coil extends out of the U-shaped groove and covers the heating end of the heater body;

[0008] A transmission component, arranged in the heater body, one end of which is rotatably connected to the convolution roller, and the transmission component is used to drive the convolution roller to rotate;

[0009] A protection component, rotatably arranged at the top of the U-shaped groove, for protecting the convolution roller and restricting the movement of the coil.

[0010] Further, the protection component includes a cover plate rotatably arranged on the side wall of the notch of the U-shaped groove. The cover plate is arranged along the length direction of the heater body, and a first notch is formed in the cover plate. The coil material extends out of the U-shaped groove through the first notch. A torsion spring is arranged at the rotational connection between the cover plate and the heater body, and the torsion spring provides a downward rotational force for the cover plate. A first convex block is arranged at one end of the cover plate away from the torsion spring, and a second convex block corresponding to the first convex block is arranged on the side wall of the notch of the U-shaped groove away from the torsion spring. When the leading end of the coil material is lapped on the second convex block and enters the U-shaped groove, the cover plate rotates downward and drives the first convex block to press above the second convex block. A cutting component is further arranged on the cover plate, and the cutting component is used for cutting the used coil material.

[0011] Further, the cutting component includes a connecting rod arranged in the first notch. The connecting rod is arranged along the length direction of the heater body, and a cutting plate is arranged on the connecting rod. The middle part of the cutting plate is rotatably connected to the connecting rod, and another torsion spring is arranged at the rotational connection, and the torsion spring provides a downward rotational force for the end of the cutting plate close to the first convex block. An inclined surface is arranged at the end of the cutting plate close to the first convex block. When the coil material extends out of the U-shaped groove, it is lapped on the inclined surface of the cutting plate. A blade is arranged above the inclined surface of the cutting plate corresponding to the cover plate, and a groove corresponding to the blade is further formed in the inclined surface of the cutting plate.

[0012] Further, a second notch is also formed in the heater body;

[0013] The transmission component includes a first transmission rod rotatably arranged in the heater body. One end of the first transmission rod is rotatably connected to the convolution roller, and a first gear is arranged at the other end. A second transmission rod is also rotatably arranged in the heater body. The second transmission rod is arranged on one side of the first transmission rod, and a second gear meshing with the first gear is arranged on the second transmission rod. An adjusting wheel is also arranged on the second transmission rod, and one end of the adjusting wheel extends out of the heater body from the second notch.

[0014] Further, guide grooves are formed at both ends of the heating end of the heater body. The guide grooves are arranged in an arc shape along the surface of the heating end of the heater body. Both sides of the coil material are respectively arranged in the corresponding guide grooves, and the guide grooves are used for guiding the moving direction of the coil material.

[0015] The beneficial effects of the utility model are embodied in:

[0016] In the present utility model, through the mutual cooperation of a convolution roller, a transmission component, and a protection component, the coil material on the convolution roller is closely attached to and wrapped around the heating end of the heater body. When the heater is working, the heater conducts heat to the coil material, and then the coil material transfers the heat to the mold. When removing the heater, the outer wall of the heating end of the heater is protected by the friction between the coil material and the inner wall of the mounting hole, thereby reducing the wear degree of the heater and prolonging its service life. Description of the Drawings

[0017] Figure 1 is a perspective view of the front of a cylindrical heater according to the present utility model;

[0018] Figure 2 is Figure 2 the enlarged view of part A in

[0019] Figure 3 is the first cross-sectional view of a cylindrical heater according to the present utility model;

[0020] Figure 4 is Figure 2 the enlarged view of part B in

[0021] Figure 5 is the second cross-sectional view of a cylindrical heater according to the present utility model;

[0022] Figure 6 is Figure 5 the enlarged view of part C in

[0023] Figure 7 is the structural view of the cover plate.

[0024] Description of the Reference Numerals:

[0025] 1. Heater body; 11. U-shaped groove; 12. Second convex block; 13. Second notch; 14. Guide groove; 2. Convolution roller; 21. Coil material; 3. Transmission component; 31. First transmission rod; 32. First gear; 33. Second transmission rod; 34. Second gear; 35. Adjusting wheel; 4. Protection component; 41. Cover plate; 411. First notch; 412. Blade; 42. First convex block; 43. Cutting component; 431. Link; 432. Cutting plate; 4321. Groove. Specific Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0027] See Figures 1-7 .

[0028] The utility model discloses a cylindrical heater, comprising:

[0029] A heater body 1, on the heating end of which a U-shaped groove 11 is formed along the length direction of the heater body 1;

[0030] A convolution roller 2, rotatably arranged in the U-shaped groove 11, on which a flexible and heat-conductive coil material 21 is wound. One end of the coil material 21 extends out of the U-shaped groove 11 and wraps the heating end of the heater body 1;

[0031] A transmission component 3, arranged in the heater body 1. One end of the transmission component 3 is rotatably connected to the convolution roller 2, and the transmission component 3 is used to drive the convolution roller 2 to rotate, so as to realize the stretching and winding of the coil material 21 through the convolution roller 2;

[0032] A protection component 4, rotatably arranged at the top of the U-shaped groove 11, for protecting the convolution roller 2 and restricting the movement of the coil material 21.

[0033] In a specific implementation, when the heater needs to be used, the staff opens the protection component 4 and pulls the leading end of the coil material 21 to make the coil material 21 extend out of the U-shaped groove 11. During the pulling process, the coil material 21 is wrapped around and closely attached to the heating end of the heater body 1. Until the coil material 21 wraps around the heating end of the heater body 1 for one week, the leading end of the coil material 21 enters the U-shaped groove 11 again. The staff drives the convolution roller 2 to rotate through the transmission component 3 to wind the coil material 21, so that the coil material 21 better adheres to the surface of the heating end of the heater body 1. Then, the protection component 4 is rotated downward to close the notch of the U-shaped groove 11 and restrain the leading end of the coil material 21 in the U-shaped groove 11, so as to avoid accidental injury to the convolution roller 2 during operation and restrict the movement of the coil material 21 to prevent the coil material 21 from accidentally separating from the heating end of the heater body 1.

[0034] In the utility model, through the mutual cooperation of the convolution roller 2, the transmission component 3 and the protection component 4, the coil material 21 on the convolution roller 2 is closely attached to and wraps around the heating end of the heater body 1. When the heater is working, the heater conducts heat to the coil material 21, and then the coil material 21 transfers the heat to the mold. When the heater is taken out, the outer wall of the heating end of the heater is protected by the friction between the coil material 21 and the inner wall of the installation hole, thereby reducing the wear degree of the heater and prolonging the service life.

[0035] It should be noted that the coil material 21 can be made of a metal sheet made of materials such as copper and aluminum with good thermal conductivity and flexibility.

[0036] In one embodiment, the protective component 4 includes a cover plate 41 rotatably arranged at the side wall of the notch of the U-shaped groove 11, the cover plate 41 is arranged along the length direction of the heater body 1, and a first notch 411 is opened on the cover plate 41, the coil 21 extends out of the U-shaped groove 11 through the first notch 411, a torsion spring (not shown in the figure) is provided at the rotation connection between the cover plate 41 and the heater body 1, and the torsion spring provides a torsion force for the cover plate 41 to rotate downward, and a first protrusion 42 is provided at one end of the cover plate 41 away from the torsion spring, and a second protrusion 12 corresponding to the first protrusion 42 is provided on the side wall of the notch of the U-shaped groove 11 away from the torsion spring. When the head end of the coil 21 overlaps the second protrusion 12 and enters the U-shaped groove 11, the cover plate 41 rotates downward and drives the first protrusion 42 to press above the second protrusion 12. A cutting component 43 is also provided on the cover plate 41, and the cutting component 43 is used to cut off the used coil 21.

[0037] With this design, when the coil 21 needs to cover the heater, the cover 41 is rotated upward and the torsion spring is compressed. When the staff pulls the coil 21, the coil 21 extends out of the U-shaped groove 11 through the first notch 411, surrounds the outer surface of the heating end of the heater and then the end overlaps the second protrusion 12. At this time, the cover 41 is lowered, the torsion spring loses its constraint and drives the cover 41 to rotate downward, and the head end of the coil 21 is clamped between the first protrusion 42 and the second protrusion 12. At this time, the coil 21 covers and clings to the heating end of the heater body 1, and the head end of the coil 21 is clamped by the first protrusion 42 and the second protrusion 12 to prevent the coil 21 from accidentally falling off.

[0038] In one embodiment, the cutting component 43 includes a connecting rod 431 arranged in the first slot 411, the connecting rod 431 is arranged along the length direction of the heater body 1, a cutting plate 432 is provided on the connecting rod 431, the middle part of the cutting plate 432 is rotatably connected to the connecting rod 431, and another torsion spring (not shown in the figure) is provided at the rotational connection, the torsion spring is used to provide a torque for the cutting plate 432 to rotate downward at one end close to the first protrusion 42, an inclined surface is provided at one end of the cutting plate 432 close to the first protrusion 42, the coil 21 is placed on the inclined surface of the cutting plate 432 when it extends out of the U-shaped groove 11, a blade 412 is provided above the inclined surface of the cutting plate 432 corresponding to the cover plate 41, and a groove 4321 corresponding to the blade 412 is also provided on the inclined surface of the cutting plate 432.

[0039] With this design, when the heater is used up, solidified thermal conductive adhesive will remain on the coil 21, which is troublesome to clean manually. By applying downward force to the end of the cutting plate 432 away from the first protrusion 42, the cutting plate 432 drives the coil 21 placed on the inclined surface to rotate upward, so that the blade 412 contacts the coil 21. As the cutting plate 432 continues to rotate, the blade 412 cuts the coil 21 and inserts it into the groove 4321, thereby cutting off the used coil 21.

[0040] In one embodiment, a second notch 13 is further provided on the heater body 1;

[0041] The transmission component 3 includes a first transmission rod 31 rotatably arranged in the heater body 1. One end of the first transmission rod 31 is rotatably connected to the convolution roller 2, and the other end is provided with a first gear 32. A second transmission rod 33 is also rotatably arranged in the heater body 1. The second transmission rod 33 is arranged on one side of the first transmission rod 31, and a second gear 34 meshing with the first gear 32 is provided on the second transmission rod 33. An adjusting wheel 35 is also provided on the second transmission rod 33, and one end of the adjusting wheel 35 extends out of the heater body 1 from the second notch 13.

[0042] With such a design, when it is necessary to rotate the convolution roller 2, the staff drives the second transmission rod 33 to rotate through the adjusting wheel 35. The second gear 34 meshes with the first gear 32 to drive the first transmission rod 31 to rotate, so as to drive the convolution roller 2 to rotate in the U-shaped groove 11 through the first transmission rod 31.

[0043] In one embodiment, guide grooves 14 are respectively formed at both ends of the heating end of the heater body 1. The guide grooves 14 are arranged in an arc shape along the surface of the heating end of the heater body 1. Both sides of the coil material 21 are respectively arranged in the corresponding guide grooves 14, and the guide grooves 14 are used to guide the moving direction of the coil material 21.

[0044] With such a design, after the coil material 21 extends out of the U-shaped groove 11, both sides of the coil material 21 respectively extend into the corresponding guide grooves 14. As the convolution roller 2 continues to rotate, the coil material 21 moves along the opening direction of the guide groove 14. The guide groove 14 enables the coil material 21 to better adhere to the outer wall of the heating end of the heater body 1, avoiding accidental separation of the coil material 21 from the heater.

[0045] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. In addition, "a plurality", "multiple groups", and "several" refer to more than two.

Claims

1. A barrel heater, characterized in that, Comprising: A heater body (1), on the heating end of the heater body (1), there is a U-shaped groove (11) arranged along the length direction of the heater body (1); A convolution roller (2), rotatably arranged in the U-shaped groove (11), on the convolution roller (2) there is a coil material (21) with flexibility and thermal conductivity, one end of the coil material (21) extends out of the U-shaped groove (11) and wraps the heating end of the heater body (1); A transmission component (3), arranged in the heater body (1), one end of the transmission component (3) is rotatably connected to the convolution roller (2), and the transmission component (3) is used to drive the convolution roller (2) to rotate; A protection component (4), rotatably arranged at the top of the U-shaped groove (11), used to protect the convolution roller (2) and restrict the movement of the coil material (21).

2. The cartridge heater according to claim 1, characterized in that, The protection component (4) includes a cover plate (41) rotatably arranged at the side wall of the notch of the U-shaped groove (11), the cover plate (41) is arranged along the length direction of the heater body (1), and there is a first notch (411) on the cover plate (41), the coil material (21) extends out of the U-shaped groove (11) through the first notch (411), at the rotational connection of the cover plate (41) and the heater body (1) there is a torsion spring, the torsion spring provides a downward rotational force for the cover plate (41), at one end of the cover plate (41) away from the torsion spring there is a first convex block (42), on the side surface of the notch of the U-shaped groove (11) away from the torsion spring there is a second convex block (12) corresponding to the first convex block (42), when the leading end of the coil material (21) is lapped on the second convex block (12) and enters the U-shaped groove (11), the cover plate (41) rotates downward and drives the first convex block (42) to press above the second convex block (12), and there is also a cutting component (43) on the cover plate (41), the cutting component (43) is used to cut the used coil material (21).

3. A cylindrical heater according to claim 2, characterized in that, The cutting component (43) includes a connecting rod (431) arranged in the first notch (411), the connecting rod (431) is arranged along the length direction of the heater body (1), on the connecting rod (431) there is a cutting plate (432), the middle of the cutting plate (432) is rotatably connected to the connecting rod (431), and at the rotational connection there is another torsion spring, the torsion spring is used to provide a downward rotational force for one end of the cutting plate (432) close to the first convex block (42), at one end of the cutting plate (432) close to the first convex block (42) there is an inclined surface, when the coil material (21) extends out of the U-shaped groove (11), it is lapped on the inclined surface of the cutting plate (432), above the inclined surface of the cutting plate (432) corresponding to the cover plate (41) there is a blade (412), and there is also a groove (4321) corresponding to the blade (412) on the inclined surface of the cutting plate (432).

4. A cylindrical heater according to claim 1, wherein, There is also a second notch (13) on the heater body (1); The transmission component (3) includes a first transmission rod (31) rotatably arranged in the heater body (1). One end of the first transmission rod (31) is rotatably connected to the convolution roller (2), and a first gear (32) is provided at the other end. A second transmission rod (33) is also rotatably arranged in the heater body (1). The second transmission rod (33) is arranged on one side of the first transmission rod (31), and a second gear (34) meshing with the first gear (32) is provided on the second transmission rod (33). An adjusting wheel (35) is also provided on the second transmission rod (33), and one end of the adjusting wheel (35) extends out of the heater body (1) from the second notch (13).

5. A cylindrical heater according to claim 1, characterized in that, Guide grooves (14) are formed at both ends of the heating end of the heater body (1). The guide grooves (14) are arranged in an arc shape along the surface of the heating end of the heater body (1). Both sides of the coil material (21) are respectively arranged in the corresponding guide grooves (14), and the guide grooves (14) are used to guide the moving direction of the coil material (21).

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