Heater
By designing the heater shell with side openings, fixing both ends of the heating wire on the inner side, the problems of high processing costs and outgoing of existing heaters are solved, and the effects of reducing processing costs and simplifying processing are achieved.
Patent Information
- Application Number
- CN202421173491.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing heaters need to be slotted in the shell or embedded in the heating wire, which increases the processing cost, and the outlet issue needs to be considered on the multi-stage heat nozzle, which further increases the processing cost.
A heater shell with side openings is designed, and the two ends of the heating wire are fixed to the inner side of the shell without slotting. The side openings can be used to outlet the heating wire.
The processing cost is reduced, the need to install a heating wire groove on the shell is avoided, and the outlet problem is solved on the multi-stage hot nozzle.
Smart Images
Figure CN222563990U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot runners, in particular to a heater. Background Art
[0002] When the hot runner system is working, the hot nozzle, main nozzle, etc. need to be heated to prevent the internal fluid temperature from dropping and affecting the fluid fluidity. Existing heaters usually have a heating wire installed inside or embedded outside a cylindrical shell to form a heater, and then the heater is put on the hot nozzle or the main nozzle. However, the embedded or external heating wire needs to form a heating wire groove on the inside or outside of the shell to accommodate the heating wire, which increases the processing cost. In addition, when the hot nozzle is multi-stage, multiple heaters need to consider the wire outlet problem, and usually wire outlet grooves need to be processed on the template, further increasing the processing cost. Utility Model Content
[0003] The utility model aims to provide a heater, whose shell has an opening on the side, and the two ends of the heating wire are fixed to the inner side of the shell, without the need for slotting, and the side opening can make way for the outlet wire, thereby solving the problem of high cost of slotting the shell and the need to process the outlet wire groove in the prior art.
[0004] In order to achieve one of the purposes of the above-mentioned utility model, one embodiment of the utility model provides a heater, including an outer shell and a heating wire, the outer shell is in the shape of a cylinder with an open side, the cylindrical outer shell includes an outer side surface and an inner side surface with a smooth surface, the heating wire is arranged on the inner side of the cylindrical outer shell, and the two ends of the heating wire are fixed to the inner side surface with a smooth surface.
[0005] As a further improvement of an embodiment of the utility model, the shell includes a first end and a second end in its circumferential direction, the opening is formed between the first end and the second end, and the first end and the second end are bent inwardly.
[0006] As a further improvement of an embodiment of the utility model, the shell includes a third end and a fourth end in its axial direction, and the third end and the fourth end are bent inwardly.
[0007] As a further improvement of an embodiment of the utility model, the shell includes a first end and a second end in its circumferential direction, the opening is formed between the first end and the second end, and the first end and the second end are bent outward to form a first flange and a second flange.
[0008] As a further improvement of an embodiment of the utility model, it also includes a buckle, and the first flange and the second flange are arranged in the buckle.
[0009] As a further improvement of one embodiment of the utility model, the buckle includes a first clamping portion, a second clamping portion and a connecting portion connecting the first clamping portion and the second clamping portion, an acute angle is formed between the first clamping portion and the connecting portion, and an acute angle is also formed between the second clamping portion and the connecting portion.
[0010] As a further improvement of an embodiment of the utility model, the first flange is arranged between the acute angle formed by the first clamping portion and the connecting portion, and the second flange is arranged between the acute angle formed by the second clamping portion and the connecting portion.
[0011] As a further improvement of an embodiment of the utility model, the angle formed between the extension surface of the first flange and the extension surface of the second flange = the angle formed between the extension surface of the first clamping portion and the extension surface of the second clamping portion.
[0012] As a further improvement of an embodiment of the utility model, the width of the side opening of the shell is 10 to 15 mm.
[0013] As a further improvement of an embodiment of the utility model, in the axial direction of the shell, the density of the heating wires gradually decreases from one end to the other end, or gradually decreases from both ends to the middle, or is evenly distributed.
[0014] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:
[0015] The shell of the heater provided by the utility model has an opening on the side, and when a plurality of heaters are arranged axially in parallel, a heating wire can come out from the side opening, the heating wire is arranged on the inner side of the shell, and both ends are fixed to the inner side surface of the shell. When the heater is in use, the heating wire is clamped between the surface of the heated body and the shell, and there is no need to set a heating wire groove, thereby reducing processing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the heater in the embodiment of the utility model.
[0017] Figure 2 It is a structural schematic diagram of another heater in an embodiment of the utility model.
[0018] Figure 3 It is a structural schematic diagram of yet another heater in an embodiment of the utility model.
[0019] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0020] Figure 5 It is a structural schematic diagram of an implementation method of the heating wire in this embodiment.
[0021] Figure 6 It is a schematic diagram of the heating wire winding method on the segmented hot nozzle.
[0022] 1. Shell; 11. Opening; 12. First end; 121. First flange; 13. Second end; 131. Second flange; 14. Third end; 15. Fourth end; 2. Heating wire; 3. Buckle; 31. First holding portion; 32. Second holding portion; 33. Connecting portion. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Terms such as "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used herein to indicate spatial relative positions are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.
[0025] For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0027] Furthermore, it should be understood that although the terms first, second, etc. may be used to describe various elements or structures in this article, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other. For example, the first holding portion may be referred to as the second holding portion, and similarly the second holding portion may also be referred to as the first holding portion, without departing from the scope of protection of the present application.
[0028] The utility model embodiment provides a heater, such as Figures 1 to 3 As shown, it includes an outer shell 1 and a heating wire 2. The outer shell 1 is in the shape of a cylinder with a side opening 11. The cylindrical outer shell 1 includes an outer side and an inner side with a smooth surface. The heating wire 2 is arranged on the inner side of the cylindrical outer shell 1, and both ends of the heating wire 2 are fixed to the inner side of the outer shell 1.
[0029] The heater provided by the utility model has an opening 11 arranged in a cylindrical shell 1, and a heating wire 2 is arranged in the shell 1. The heating wire 2 can be routed through the opening 11 of the shell 1, and there is no need to provide a groove for routing the heating wire 2 on the template, thereby reducing the processing cost. The heating wire 2 is arranged in the shell 1, and both ends of the heating wire 2 are fixed to the inner side surface of the shell 1 to play a fixing role. When the heater is sleeved on the heated body, the heating wire 2 can be pressed between the heated body and the shell 1 through the shell 1. Therefore, there is no need to provide a heating wire 2 groove in the shell 1, which can also reduce the processing cost.
[0030] Preferably, the housing 1 is made of steel with high resilience, so that the housing 1 can make the heating wire 2 inside it fit well with the heated object, avoiding the situation where the heating wire 2 and the surface of the heated object have a gap due to poor fit and cause empty burning, and can improve heat conduction efficiency. In addition, the high resilience material ensures that when the heating wire 2 is damaged and needs to be replaced, the shape of the housing 1 can be almost unaffected during disassembly.
[0031] In some embodiments, Figure 1 , 2 In the embodiment, the housing 1 includes a first end 12 and a second end 13 in the circumferential direction, an opening 11 is formed between the first end 12 and the second end 13, and the first end 12 and the second end 13 are bent inwardly. The housing 1 can be regarded as a square plate bent into a cylindrical shape that is roughly C-shaped and has an opening 11. After bending, the first end 12 and the second end 13 continue to bend toward the axial direction of the housing 1. Since the heating wire 2 is arranged in the housing 1, the first end 12 and the second end 13 are bent inwardly to prevent the heating wire 2 from rotating in the radial direction or escaping from the housing 1 from the opening 11.
[0032] In other embodiments, Figure 2As shown, the housing 1 includes a third end 14 and a fourth end 15 in the axial direction, and the third end 14 and the fourth end 15 are bent inward. The third end 14 and the fourth end 15 are formed by bending the other two opposite sides of the square plate, and the third end 14 and the fourth end 15 are bent inward to prevent the heating wire 2 from escaping from the housing 1 along the axial direction of the housing 1.
[0033] In some embodiments, Figure 3 , 4 As shown, the housing 1 includes a first end 12 and a second end 13 in its circumferential direction, an opening 11 is formed between the first end 12 and the second end 13, and the first end 12 and the second end 13 are bent outward to form a first flange 121 and a second flange 131. The first end 12 and the second end 13 at the opening 11 of the housing 1 are bent outward to form the first flange 121 and the second flange 131. When the heater is in use, the opening 11 of the housing 1 can be locked by the first flange 121 and the second flange 131 outside the housing 1, so that the heating wire 2 inside the housing 1 is as close to the heated object as possible.
[0034] Preferably, the heater further comprises a buckle 3 , the first flange 121 and the second flange 131 are arranged in the buckle 3 , and the opening 11 of the housing 1 is locked by the buckle 3 .
[0035] Specifically, Figure 4 As shown, the buckle 3 includes a first clamping portion 31, a second clamping portion 32 and a connecting portion 33 connecting the first clamping portion 31 and the second clamping portion 32. There is an acute angle between the first clamping portion 31 and the connecting portion 33, and there is also an acute angle between the second clamping portion 32 and the connecting portion 33, so that the cross-section of the buckle 3 is roughly C-shaped.
[0036] When the heater is sleeved on the heated object, the buckle 3 is connected to the first flange 121 and the second flange 131 in the buckle 3 from the third end 14 (or the fourth end 15) of the shell 1 along the axial direction of the shell 1, and then the buckle 3 is moved toward the fourth end 15 (or the third end 14). Finally, the first flange 121 is set between the acute angles formed by the first holding portion 31 and the connecting portion 33, and the second flange 131 is set between the acute angles formed by the second holding portion 32 and the connecting portion 33.
[0037] Preferably, the angle formed between the extension surface of the first flange 121 and the extension surface of the second flange 131 = the angle formed between the extension surface of the first clamping portion 31 and the extension surface of the second clamping portion 32 .
[0038] like Figure 4In the figure, the first flange 121 forms an acute angle with the shell 1 after being bent outward, and the second flange 131 also forms an acute angle with the shell 1 after being bent outward. The extended surface of the first flange 121 and the extended surface of the second flange 131 intersect in the shell 1 to form an obtuse angle 1 greater than 90°. The first clamping portion 31 and the second clamping portion 32 are both at acute angles with the connecting portion 33, but the two are not connected. The intersection of the extended surface of the first clamping portion 31 and the extended surface of the second clamping portion 32 is on the side of the connecting portion 33 where the first clamping portion 31 and the second clamping portion 32 are provided, and the extended surface of the first clamping portion 31 and the extended surface of the second clamping portion 32 form an obtuse angle 2 with an angle greater than 90°, and the angle of the obtuse angle 1 is equal to the angle of the obtuse angle 2. When the buckle 3 clamps the first flange 121 and the second flange 131 together, the first flange 121 fits against the first clamping portion 31, and the second flange 131 fits against the second clamping portion 32, so that the clamping stability of the buckle 3 is better.
[0039] In some embodiments, the width of the side opening 11 of the housing 1 is 10-15 mm. The width of the opening 11 of 10-15 mm can meet the wiring requirements of the heating wire 2 and will not cause local low temperature phenomenon in the area of the heated body corresponding to the opening 11 due to the large area.
[0040] In some embodiments, in the axial direction of the housing 1 , the density of the heating wires 2 gradually decreases from one end to the other end, or gradually decreases from both ends to the middle, or is evenly distributed.
[0041] The heater provided by the utility model is generally used for the hot nozzle and the main nozzle in the hot runner system. The heater used in the main nozzle can be evenly distributed using the heating wire 2 (such as Figure 5 As shown in the figure, the hot nozzle is long and the temperature at the end away from the manifold is lower. It is necessary to use a heater to compensate the temperature of the hot nozzle away from the manifold. Therefore, in the axial direction of the shell 1, the density of the heating wire 2 needs to be higher at one end and lower at the other end.
[0042] When the heating wire 2 adopts a multi-stage hot nozzle, Figure 6 In the figure, the hot nozzle is close to the end of the template (i.e., the end away from the diverter plate) and contacts the template, resulting in heat loss. The heating wires 2 are densely distributed, while there is no heat loss in the middle section. Therefore, the heating wires 2 in the heater outside the hot nozzle in the middle section are sparse in the middle to avoid heat accumulation in the middle of the hot nozzle and overheating. The hot nozzle is close to the end of the diverter plate and can obtain heat from the diverter plate. Therefore, the heating wires 2 here are relatively sparsely distributed.
[0043] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0044] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A heater, characterized in that: The invention comprises an outer shell and a heating wire. The outer shell is in the shape of a cylinder with an opening at the side. The cylindrical outer shell comprises an outer side and an inner side with a smooth surface. The heating wire is arranged on the inner side of the cylindrical outer shell, and both ends of the heating wire are fixed on the inner side with a smooth surface.
2. The heater according to claim 1, characterized in that The housing includes a first end and a second end in a circumferential direction thereof, the opening is formed between the first end and the second end, and the first end and the second end are bent inwardly.
3. The heater according to claim 2, characterized in that The housing includes a third end and a fourth end in the axial direction thereof, and the third end and the fourth end are bent inwardly.
4. The heater according to claim 1, characterized in that The shell includes a first end and a second end in its circumferential direction, the opening is formed between the first end and the second end, and the first end and the second end are bent outward to form a first flange and a second flange.
5. The heater according to claim 4, characterized in that It also includes a buckle, in which the first flange and the second flange are arranged.
6. The heater according to claim 5, characterized in that The buckle includes a first clamping portion, a second clamping portion, and a connecting portion connecting the first clamping portion and the second clamping portion. An acute angle is formed between the first clamping portion and the connecting portion, and an acute angle is also formed between the second clamping portion and the connecting portion.
7. The heater according to claim 6, characterized in that The first flange is disposed between the acute angle formed by the first clamping portion and the connecting portion, and the second flange is disposed between the acute angle formed by the second clamping portion and the connecting portion.
8. The heater according to claim 7, characterized in that The angle formed between the extension surface of the first flange and the extension surface of the second flange = the angle formed between the extension surface of the first clamping portion and the extension surface of the second clamping portion.
9. The heater according to claim 1, characterized in that The width of the side opening of the shell is 10-15 mm.
10. The heater according to claim 1, characterized in that In the axial direction of the shell, the density of the heating wires gradually decreases from one end to the other end, or gradually decreases from both ends to the middle, or is evenly distributed.