A heat preservation heater

Abstract

The present invention belongs to the technical field of injection molding machines, and in particular relates to a heat preservation heater, comprising two semi-circular bodies and a plurality of heating and heat preservation layers, wherein the two semi-circular bodies are arranged to form a heating chamber, and a plurality of heating and heat preservation layers are arranged at intervals on the heating chamber, and each heating and heat preservation layer comprises a heating wire, a quartz tube and a protective member, wherein the heating wire is installed in the heating chamber, the quartz tube is sleeved on the heating wire, and the protective member is sleeved on the quartz tube, and a plurality of openings are arranged at intervals on the front of the protective member; when the quartz tube is broken, the protective member plays a role of supporting the broken quartz tube, and even if the quartz tube is broken, it can still keep working to ensure the heat preservation effect of the heating chamber, and the arranged protective member can also protect the quartz tube during transportation to prevent one of the quartz tubes from breaking and collapsing during transportation, resulting in the phenomenon that the remaining quartz tubes are broken and damaged, thereby improving the stability of the transport process.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding machines, and in particular relates to a heat preservation heater. Background Art

[0002] The injection molding machine needs to heat and melt the plastic, and then extrude the melted plastic into a plastic mold. When heating the plastic machine, a heating device is needed. The heating device is placed on the part of the injection molding machine to be heated. In order to prevent heat loss during the heating process, an insulation structure is provided in the heating device.

[0003] The existing injection molding machine heating ring device includes a left half ring body, a right half ring body, a heating rod and a thermal insulation layer. The left half ring body and the right half ring body are connected on one side, and the other side of the left half ring body and the right half ring body are butt-jointed to form a heating chamber sleeved on the injection molding machine to be heated part. The heating rod is arranged in the heating chamber, and the thermal insulation layer is sleeved on the heating rod. In order to improve the thermal insulation effect, the thermal insulation layer adopts a quartz tube made of quartz material.

[0004] However, the quartz tube is integrally sleeved on the surface of the heating rod, so during transportation, it is easy to cause the quartz tube to break. The broken quartz tube is easy to collapse during use, resulting in failure to keep warm, and a new quartz tube needs to be replaced before use. Summary of the invention

[0005] The object of the present invention is to provide a heat preservation heater, aiming to solve the technical problems in the prior art that quartz tubes are prone to breakage during transportation and the broken quartz tubes are prone to collapse during operation.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a thermal insulation heater, which includes two semi-circular bodies and a plurality of heating and heat-insulating layers. The two semi-circular bodies are arranged to form a heating chamber, and a plurality of heating and heat-insulating layers are arranged at intervals on the heating chamber. Each of the heating and heat-insulating layers includes a heating wire, a quartz tube and a protective member. The heating wire is installed in the heating chamber, the quartz tube is sleeved on the heating wire, and the protective member is sleeved on the quartz tube. A plurality of openings are arranged at intervals on the front of the protective member.

[0007] Optionally, the protective member is made of 95 ceramic.

[0008] Optionally, the protective member includes a plurality of first bodies, and the first bodies are spliced ​​together to form the protective member.

[0009] Optionally, each of the first bodies is provided with a first through hole and a second through hole penetrating the upper end face and the lower end face thereof, a first boss corresponding to the first through hole and a second boss corresponding to the second through hole are extended from the upper end face of the first body, a first groove corresponding to the first through hole and a second groove corresponding to the second through hole are provided on the lower end face of the first body, two first bodies adjacent to each other in an upper and lower manner are staggered, and the first through holes and the second through holes alternately and repeatedly arranged in an upper and lower manner form an installation channel for installing a quartz tube.

[0010] Optionally, the protective member includes a second body for wiring, one end of the second body is aligned and connected with the first body, the other end of the second body is staggered and connected with another first body, and the opening of the second body faces the back side of the protective member and is used for wiring.

[0011] Optionally, the opening of the second body is further provided with heat insulating material.

[0012] Optionally, the heat-generating and heat-insulating layer further includes a connecting piece, and the first body located on the side of the protective piece is separated to form a vacant portion, and the connecting piece is arranged on the vacant portion and covers the quartz tube.

[0013] Optionally, the left and right ends of each of the first bodies are both semicircular structures.

[0014] Optionally, the two half-circles include a shell, a fixed frame and a thermal insulation material; mounting parts are provided at both ends of the fixed frame, the ends of the heating and heat-insulating layer are connected to the mounting parts, and the thermal insulation material is also provided between the shell and the fixed frame, and the thermal insulation material is aerogel.

[0015] Optionally, one side of the two shells is provided with a fixing part, the fixing part is provided with a connecting rod, the connecting rod is provided with a threaded hole, and the fixing piece passes through the two threaded holes in sequence so that the two shells are fastened on the injection molding machine.

[0016] The above one or more technical solutions in the thermal insulation heater provided by the embodiment of the present invention have at least one of the following technical effects: the two semi-circles are sleeved on the part to be heated of the injection molding machine, and then the heating wire is started to emit infrared rays, which pass through the quartz tube and the opening to irradiate the part to be heated of the injection molding machine, thereby realizing heating, and the quartz tube and the protective part have the effect of thermal insulation. Since the protective part is sleeved on the surface of the quartz tube, when the quartz tube breaks, the protective part plays a role of supporting the broken quartz tube. Even if the quartz tube is broken, it can still keep working to ensure the thermal insulation effect of the heating chamber, and the protective part can also protect the quartz tube during transportation to prevent one of the quartz tubes from breaking and collapsing during transportation, causing the remaining quartz tubes to break and be damaged, thereby improving the stability of the transport process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic structural diagram of a thermal insulation heating element provided in an embodiment of the present invention.

[0019] Figure 2 A partial structural schematic diagram of a thermal insulation heating element provided in an embodiment of the present invention.

[0020] Figure 3 A schematic structural diagram of a heat-generating and heat-insulating layer in a heat-insulating and heating element provided in an embodiment of the present invention.

[0021] Figure 4 Another structural schematic diagram of the heat-generating and heat-insulating layer in the heat-insulating and heating element provided in an embodiment of the present invention.

[0022] Figure 5 A schematic structural diagram of the first body in the thermal insulation heating element provided in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of another structure of the first body in the thermal insulation heating element provided in an embodiment of the present invention.

[0024] Figure 7 A schematic structural diagram of a fixing frame in a thermal insulation and heating element provided in an embodiment of the present invention.

[0025] Among them, the reference numerals in the figure are:

[0026] 10—half circle 11—heating chamber 12—shell

[0027] 121 - fixed part 122 - connecting rod 13 - fixed frame

[0028] 14—installation part 20—heat-generating and heat-insulating layer 21—quartz tube

[0029] 22—protection member 221—first body 2211—opening

[0030] 2212—first through hole 2213—second through hole 2214—first boss

[0031] 2215—second boss 2216—first groove 2217—second groove

[0032] 222—second body 23—connecting piece. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the attached Figures 1 to 7 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0037] In one embodiment of the present invention, Figures 1 to 6 As shown, a thermal insulation heater is provided, comprising two semi-circular bodies 10 and a plurality of heating insulation layers 20, wherein the two semi-circular bodies 10 surround a heating chamber 11, and a plurality of heating insulation layers 20 are arranged at intervals on the heating chamber 11, and each heating insulation layer 20 comprises a heating wire (not shown in the figure), a quartz tube 21 and a protective member 22, wherein the heating wire is installed in the heating chamber 11, the quartz tube 21 is sleeved on the heating wire, the protective member 22 is sleeved on the quartz tube 21, and a plurality of openings 2211 are arranged at intervals on the front surface of the protective member 22.

[0038] Specifically, the two half-circles 10 are sleeved on the part of the injection molding machine to be heated, and then the heating wire is started to emit infrared rays, which pass through the quartz tube 21 and the opening 2211 to irradiate the part of the injection molding machine to be heated, thereby achieving heating. The quartz tube 21 and the protective member 22 have a heat-insulating effect. Since the protective member 22 is sleeved on the surface of the quartz tube 21, when the quartz tube 21 is broken, the protective member 22 supports the broken quartz tube 21. Even if the quartz tube 21 is broken, it can still keep working, so as to ensure the heat-insulating effect of the heating chamber 11. In addition, the protective member 22 can also protect the quartz tube 21 during transportation, so as to prevent one of the quartz tubes 21 from breaking and collapsing during transportation, resulting in the breakage and damage of the remaining quartz tubes 21, thereby improving the stability of the transportation process.

[0039] It should be noted that the equipment used for the heating and heat preservation device of the present invention includes but is not limited to an extruder, an injection molding machine and a wire splicing machine.

[0040] In another embodiment of the present invention, the protective member 22 is made of 95 ceramic. Specifically, 95 ceramic has a low wear rate, a long service life, and has the characteristics of high temperature resistance, high mechanical strength, good insulation performance, high electrical strength, good chemical stability, etc., and has a small loss of mechanical strength at high temperature. When used in a heating and warming device, it is relatively stable in a high temperature environment, thereby improving the use stability of the heating and warming device.

[0041] In another embodiment of the present invention, Figures 1 to 6 As shown, the protective member 22 includes a plurality of first bodies 221, and each of the first bodies 221 is spliced ​​to form the protective member 22. Specifically, since the protective member 22 is formed by splicing a plurality of first bodies 221, different numbers of first bodies 221 are spliced ​​to form protective members 22 of various sizes according to different specifications, and the protective member 22 is applicable to a variety of heating and heat preservation members of different specifications, thereby improving applicability.

[0042] In another embodiment of the present invention, Figures 5-6 As shown, each of the first bodies 221 is provided with a first through hole 2212 and a second through hole 2213 penetrating the upper and lower end surfaces thereof, a first boss 2214 corresponding to the first through hole 2212 and a second boss 2215 corresponding to the second through hole 2213 are extended from the upper end surface of the first body 221, a first groove 2216 corresponding to the first through hole 2212 and a second groove 2217 corresponding to the second through hole 2213 are provided on the lower end surface of the first body 221, and the two first bodies 221 adjacent to each other in upper and lower positions are staggered, and the first through holes 2212 and the second through holes 2213 alternately and repeatedly arranged in upper and lower positions form an installation channel for installing the quartz tube 21. Specifically, during assembly, the first boss 2214 of the lower first body 221 is inserted into the second groove 2217 of the upper first body 221, and the second boss 2215 of the other lower first body 221 is inserted into the first groove 2216 of the upper first body 221. The first through holes 2212 and the second through holes 2213 that are alternately arranged up and down form an installation channel. The quartz tube 21 is installed in the channel. Since the first body 221 is staggered up and down, an integral protective member 22 can be formed. The staggered connection up and down makes the structure of the protective member 22 more stable and less prone to left and right shaking. The structure is more stable, thereby ensuring the stability of the quartz tube 21 installed in the installation channel and preventing the quartz tube 21 from breaking due to shaking, thereby improving the stability of use.

[0043] Furthermore, the protective member 22 is composed of an odd number of first bodies 221 and an even number of first bodies 221 which are alternately arranged up and down. For example, there are four first bodies 221 in the first layer, three first bodies 221 in the second layer, and four first bodies 221 in the third layer. The first bodies 221 in the third layer are aligned with the first bodies 221 in the first layer, and the first bodies 221 in the second layer are staggered and connected between the first bodies 221 in the first layer and the first bodies 221 in the third layer.

[0044] Furthermore, the protection member 22 may also be composed of a same number of first bodies 221 arranged alternately and repeatedly. For example, the number of first bodies 221 in each layer is four, the first bodies 221 in alternate layers are arranged in alignment, and the first bodies 221 in adjacent layers are arranged in a staggered manner.

[0045] In another embodiment of the present invention, Figures 3-4 As shown, the protective member 22 includes a second body 222 for wiring, one end of the second body 222 is aligned and connected with the first body 221, the other end of the second body 222 is staggered and connected with another first body 221, and the opening of the second body 222 faces the back of the protective member 22 and is used for wiring. Specifically, the wires are electrically connected to each heating wire through the opening of the second body 222, so that each heating wire is energized and generates heat. When working, the heat is concentrated on the front of the protective member 22. Since the opening of the second body 222 is set on the back of the protective member 22, the wire is reduced from being aged by heat, ensuring the safety of use.

[0046] In another embodiment of the present invention, Figures 3-4 As shown, the number of second bodies 222 aligned and connected with the first body 221 is the same, the number of second bodies 222 set is odd, preferably three, the openings of the second bodies 222 set at both ends are set on the back side of the protective member 22, and the opening of the second body 222 located in the middle faces the front side of the protective member 222.

[0047] The structure of the second body 222 is the same as that of the first body 221 , and no further details are given here. Here, the second body 222 is reversely installed so that the opening of the second body 222 is in the opposite direction to the opening 2211 of the first body 221 , which is convenient for connecting the wires.

[0048] In another embodiment of the present invention, the opening of the second body 222 is further provided with a heat insulating material. Specifically, the provision of the heat insulating material can further reduce the heat on the front side of the protective member 22 being transferred to the back side of the protective member 22 through the opening of the second body 222, thereby preventing the wires from being heated.

[0049] In another embodiment of the present invention, the thermal insulation material is aerogel. Specifically, the aerogel has a good thermal insulation effect and can well isolate the heat outside the second body 222, thereby ensuring the stability of the wire.

[0050] In another embodiment of the present invention, Figures 1 to 6As shown, the heating and heat-insulating layer 20 further includes a connecting piece 23, and the first bodies 221 located on the side of the protective piece 22 are separated to form a vacant portion, and the connecting piece 23 is arranged on the vacant portion and covers the quartz tube 21. Specifically, since the first bodies 221 arranged up and down are staggered and connected, a vacant portion is formed between the first bodies 221 separated on both sides, and the connecting piece 23 is arranged to fill the vacant portion and cover the quartz tube 21 at the same time, thereby improving the protection of the quartz tube 21.

[0051] In another embodiment of the present invention, Figures 5-6 As shown, each of the first bodies 221 has a semicircular structure at both the left and right ends. Specifically, the horizontal cross section of the first body 221 is a runway-shaped structure, so that the first bodies 221 arranged on the left and right can rotate along the axis of the quartz tube 21, so that the heat preservation can be formed into a flat or curved structure. The curved structure has a larger irradiation area for the part to be heated in the injection molding machine, thereby further improving the heating and heat preservation effect.

[0052] In another embodiment of the present invention, Figures 1-2 and Figure 7 As shown, the two half-circle bodies 10 include a shell 12, a fixing frame 13 and a heat-insulating material; mounting portions 14 are provided at both ends of the fixing frame 13, and the ends of the heat-generating and heat-insulating layer 20 are connected to the mounting portions 14. The heat-insulating material is also provided between the shell 12 and the fixing frame 13, and the heat-insulating material is aerogel. Specifically, the aerogel provided between the shell 12 and the fixing frame 13 can prevent the loss of heat, thereby improving the heat-insulating effect.

[0053] In another embodiment of the present invention, Figures 1-2 As shown, a fixing portion 121 is provided on one side of the two shells 12, and a threaded hole is provided in the fixing portion 121. The fixing piece passes through the two threaded holes in sequence so that the two shells are tightly sleeved on the injection molding machine. Specifically, by rotating the fixing piece so that the two shells 12 are tightly sleeved on the injection molding machine, the stability of the sleeve on the injection molding machine can be ensured through the threaded connection.

[0054] In another embodiment of the present invention, Figures 1-2 As shown, a connecting rod 122 is provided in the fixing portion 121, and a threaded hole is provided on the connecting rod 122. Specifically, the connecting rod 122 is provided in the fixing portion 121, and when the threaded hole of the connecting rod 122 is worn, only the connecting rod 122 needs to be replaced, which is convenient for replacement.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat preservation heater, characterized in that: It includes two semi-circles and a plurality of heating and heat-insulating layers, the two semi-circles are arranged to form a heating chamber, a plurality of the heating and heat-insulating layers are arranged at intervals on the heating chamber, each of the heating and heat-insulating layers includes a heating wire, a quartz tube and a protective member, the heating wire is installed in the heating chamber, the quartz tube is sleeved on the heating wire, the protective member is sleeved on the quartz tube, and a plurality of openings are arranged at intervals on the front of the protective member; the protective member includes a plurality of first bodies, each of which is spliced ​​to form the protective member; the protective member includes a second body for wiring, one end of the second body is aligned and connected with the first body, the other end of the second body is staggered and connected with another first body, the opening of the second body faces the back of the protective member and is used for wiring; the heating and heat-insulating layer also includes a connecting member, the first bodies located on the side of the protective member are spaced to form a vacant portion, the connecting member is arranged on the vacant portion and covers the quartz tube.

2. The heat preservation heater according to claim 1, characterized in that: The protective member is made of 95 ceramic.

3. The heat preservation heater according to claim 1, characterized in that: Each of the first bodies is provided with a first through hole and a second through hole penetrating the upper end surface and the lower end surface thereof, a first boss corresponding to the first through hole and a second boss corresponding to the second through hole are extended from the upper end surface of the first body, a first groove corresponding to the first through hole and a second groove corresponding to the second through hole are provided on the lower end surface of the first body, two first bodies adjacent to each other in an upper and lower manner are staggered, and the first through holes and the second through holes alternately and repeatedly arranged in an upper and lower manner form an installation channel for installing a quartz tube.

4. The heat preservation heater according to claim 1, characterized in that: The opening of the second body is also provided with heat insulating material.

5. The heat preservation heater according to claim 1, characterized in that: The left and right ends of each of the first bodies are both semicircular structures.

6. The thermal insulation heater according to any one of claims 1 to 5, characterized in that: The two half-circles include a shell, a fixed frame and a heat-insulating material; mounting parts are provided at both ends of the fixed frame, the ends of the heating and heat-insulating layer are connected to the mounting parts, and the heat-insulating material is also provided between the shell and the fixed frame, and the heat-insulating material is made of aerogel.

7. The heat preservation heater according to claim 6, characterized in that: One side of the two shells is provided with a fixing part, in which a connecting rod is provided, and a threaded hole is provided on the connecting rod. The fixing piece passes through the two threaded holes in sequence so that the two shells are fastened on the injection molding machine.

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