A batch forming mold for heater components

Abstract

This application discloses a batch forming mold for heater assemblies, belonging to the field of heater manufacturing technology. It includes two molds that are assembled together, with vertically distributed mounting grooves between the two molds. The mounting grooves are open, and a baffle is fixed to one end of each mold within the mounting groove. A sealing groove is connected to the upper end of the mounting groove. A positioning element is inserted into the mounting groove, and a spacer is inserted into the heater. The positioning element and the spacer are installed together, with the heater fitted onto the positioning element. The spacer includes a fixing frame with a sealing sleeve that separates the two heaters. The radius of the sealing sleeve is the same as the radius of the wall of the mounting groove. The advantage of this application is that it allows the processing of multiple heaters to be completed on a single mounting groove without disassembling the mold to remove the heaters, reducing operator fatigue.

Description

Technical Field

[0001] This application relates to the field of batch forming mold technology for heater assemblies, and more specifically, to a batch forming mold for heater assemblies. Background Technology

[0002] During the production of heaters, a layer of silicone rubber pad needs to be placed around the heating element for protection. This provides mechanical protection, moisture protection, good heat transfer, and high insulation performance. Silicone rubber strips are typically used to attach the heater, utilizing their softness and plasticity. The heater is then placed in a mold, and heating causes the silicone rubber strips to expand within the mold. The silicone rubber undergoes a vulcanization reaction, transforming it from a viscous flow state to an elastomer. However, during production, the upper and lower molds need to be pressed together on a workbench using a power mechanism, or the two molds need to be securely installed before heating and molding. Both methods require separating the upper and lower molds, followed by demolding the heater. This results in high workload for workers and is unsuitable for mass production.

[0003] Therefore, a batch molding die for heater components is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a batch forming mold for heater assemblies, comprising: two molds symmetrically arranged front and rear, with three vertically distributed mounting slots between the two molds; a positioning member inserted into each mounting slot; heaters evenly distributed horizontally on each positioning member; each heater comprising, from the inside out, a stainless steel substrate, a thin-film heater, and a silicone rubber sleeve; an isolation member installed at the positioning member; a sealing spacer connected to the isolation member for separating the heaters; the radius of the sealing spacer being equal to the radius of the mounting slot; baffles fixedly installed at the left ends of both molds and located in the mounting slots; and insert cylinders fixedly installed at the right ends of the baffles, the insert cylinders being able to insert and cooperate with the positioning members, and the baffles being used to abut against the positioning members for limiting their position.

[0006] Furthermore, the positioning component includes a longitudinally arranged handle and a transversely arranged insertion rod. The insertion rod can be inserted into the mounting groove. The upper end of the handle has a pressing hole, and a lifting frame is inserted into the pressing hole. A push spring is connected between the lifting frame and the side wall of the pressing hole. A locking rod is fixedly provided at the lower end of the lifting frame. A sliding cavity is provided inside the handle. The lifting frame and the locking rod slide up and down in the sliding cavity. An insertion cavity is provided in the sliding cavity. The isolation component includes a fixed frame that can be inserted into the positioning component. The fixed frame is inserted into the insertion cavity. One end of the fixed frame inserted into the handle is inclined. The inclined end of the fixed frame can abut against the right side wall of the insertion cavity. An insertion hole is provided inside the fixed frame that can be inserted into the locking rod.

[0007] Furthermore, the isolation component also includes three sets of evenly distributed rotating slots on the fixed frame. The rotating slots are arranged front to back and staggered left to right on the fixed frame. Two of the rotating slots in each set are rotatably connected to a connecting sleeve via a rotating rod (there is one rotating rod). The connecting sleeve has a rotating cavity, and the axes of two adjacent rotating cavities are aligned. A sealing spacer is fixedly provided at the lower end of each connecting sleeve. The left end of the sealing spacer has a chamfered inclined end. Two closely spaced torsion springs are connected between the connecting sleeves at the upper ends of two closely spaced sealing spacers. The closely spaced ends of the two torsion springs are fixedly connected to the fixed frame. Three telescopic abutments are provided on the outer periphery of the insertion rod. The telescopic abutments are connected by springs and are telescopically mounted on the insertion rod. The extended end of the telescopic abutment is hemispherical and can abut and support the heater. The telescopic abutments are installed in the sealing spacer portion.

[0008] Furthermore, each of the mounting slots has a sealing groove connected to its upper end, and a sealing gasket is fixed on the side wall of the sealing groove. The right end of the mold, which is located at the same level as the sealing groove, has an elastic buckle that can engage with the fixing frame. The fixing frame has a snap-fit ​​groove, and the elastic buckle can snap onto the snap-fit ​​groove by elastic force.

[0009] Furthermore, the sealing sleeve located on the left end has an inclined end, and the left end faces of the three sealing sleeves located on the right end are flat. Two rotating rods are symmetrically arranged front and rear, and the two rotating rods are respectively fixedly connected to the connecting sleeves on the front and rear sides. Two rotating cavities are arranged in an arc shape, and the centers of the two rotating cavities are respectively located at the centers of the two rotating rods. The rotating rods are rotatably connected to the fixing frame, and the left and right extensions of the rotating rods are respectively fixedly engaged with the connecting sleeves. By setting the left end faces of the three sealing sleeves on the right side to be flat, the sealing sleeves are closed at both ends of the heater after being retracted in the mounting groove, thereby preventing silicone rubber from overflowing during heating and improving the molding effect.

[0010] The beneficial effects of this application are as follows: 1. By setting an open mounting slot between two molds, the insert rod can carry the heater directly out when the two molds are not open, thus eliminating the need for repeated disassembly and installation of the threaded parts on the molds, improving production efficiency. Furthermore, by separating the heaters with a sealing sleeve set at the isolation part, the processing of multiple heaters can be completed on one mounting slot, further improving work efficiency.

[0011] 2. By setting a telescopic stop at the insertion rod, the manual operation and intervention required during the installation of the heater on the insertion rod are reduced, thereby improving the work efficiency of installing the heater on the insertion rod, which in turn indirectly improves the overall production efficiency and reduces the operator fatigue.

[0012] 3. The sealing spacer that can open and close at the front and back enables the quick installation of the isolation component at the positioning component. Furthermore, the inclined end on the left side of the sealing spacer eliminates the need for manual control of the closing of the two sealing spacers during the insertion of the positioning component into the installation slot, thereby improving assembly efficiency and indirectly improving overall work efficiency. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0014] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0015] In the attached diagram: Figure 1 This is an overall schematic diagram of the first state of an embodiment of a heater assembly batch forming mold according to this application; Figure 2 yes Figure 1 A schematic diagram of the appearance after removing the mold in the embodiment; Figure 3 yes Figure 1 A magnified view of a portion of the flexible snap fastener; Figure 4 This is a schematic diagram showing the appearance of the positioning and isolation components during assembly. Figure 5 yes Figure 4 A schematic diagram of the appearance after removing the front sealing spacer in the embodiment; Figure 6 This is a half-sectional view of the positioning and isolation components in the embodiment. Figure 7 yes Figure 2 A schematic diagram of the sealing spacer portion disposed within the mounting groove in the embodiment; Figure 8 yes Figure 4 A schematic diagram of the appearance of the second state in the embodiment; Figure 9 yes Figure 8 The side view of the connecting sleeve portion in the first and second states of the embodiment is shown in the schematic diagram.

[0016] Figure label: 10. Mold; 11. Mounting slot; 12. Positioning component; 13. Baffle; 14. Heater; 15. Isolator; 20. Sliding cavity; 21. Insertion cavity; 22. Lifting frame; 23. Push spring; 24. Snap-fit ​​rod; 25. Handle; 26. Insert rod; 27. Fixing frame; 28. Elastic buckle; 29. ​​Sealing gasket; 30. Snap-fit ​​groove; 31. Rotating groove; 32. Connecting sleeve; 33. Torsion spring; 34. Rotating cavity; 35. Sealing spacer; 36. Inclined end; 40. Telescopic stop rod; 41. Sealing groove; 42. Rotating rod. Detailed Implementation

[0017] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0018] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0019] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0020] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1-2 A batch molding die for heater assemblies includes: two symmetrically arranged molds 10, with three vertically distributed mounting grooves 11 between the two molds 10. Positioning members 12 are inserted into the mounting grooves 11, and heaters 14 are evenly distributed on the positioning members 12. Each heater 14 comprises a stainless steel substrate, a thin-film heater, and a silicone rubber sleeve, from the inside out. A spacer 15 is installed at the positioning member 12, and a sealing spacer 35 for separating the heaters 14 is connected to the spacer 15. The radius of the sealing spacer 35 is equal to the radius of the mounting groove 11. Baffles 13 are fixed to the left ends of both molds 10, located within the mounting grooves 11, and insertion cylinders (such as...) are fixed to the right ends of the baffles 13. Figure 2 As shown by the upper baffle 13 mark, the plug-in tube can be plugged into the positioning member 12, and the baffle 13 is used to abut against the positioning member 12 for limiting. Multiple drill holes are opened on the mold 10 for embedding electric heating rods / tubes. The mold and silicone rubber strip are heated by electric heating. After the two molds 10 are fixed by the threaded parts, the right end of the mold 10 is provided with an open mounting groove 11. The positioning member 12 and the isolation member 15 can be inserted into the mold 10 through the mounting groove 11 to heat and shape the silicone strip of the heater 14. After the work is completed, the positioning member 12 is pulled out by holding it, and the isolation member 15 is removed from the positioning member 12, so that the heater 14 on the positioning member 12 can slide out and detach through the other end of the positioning member 12.

[0023] Reference Figure 6The positioning component 12 includes a longitudinally arranged handle 25 and a transversely arranged insertion rod 26. The insertion rod 26 can be inserted into the mounting groove 11. A pressing hole is provided at the upper end of the handle 25, and a lifting frame 22 is inserted into the pressing hole. A push spring 23 is connected between the lifting frame 22 and the side wall of the pressing hole. A locking rod 24 is fixed at the lower end of the lifting frame 22. A sliding cavity 20 is provided inside the handle 25. The lifting frame 22 and the locking rod 24 slide up and down in the sliding cavity 20. An insertion cavity 21 is provided in the sliding cavity 20. The isolation component 15 includes a fixing frame 27 that can be inserted into the positioning component 12. The fixing frame 27 is inserted into the insertion cavity 21. The fixing frame 27 is inserted into the handle 25. One end of the fixed frame 27 is inclined, and the inclined end of the fixed frame 27 can abut against the right side wall of the insertion cavity 21. The fixed frame 27 has an insertion hole that can be inserted and cooperated with the snap-fit ​​rod 24. By moving the fixed frame 27 left and right, the inclined end of the fixed frame 27 is inserted into the insertion cavity 21 and abuts against the snap-fit ​​rod 24 in the sliding cavity 20. Under the abutment of the inclined surface and the snap-fit ​​rod 24, the lifting frame 22 is pushed to slide downward against the spring force of the push spring 23. After the paper fixed frame 27 abuts against the right side wall of the insertion cavity 21, the snap-fit ​​rod 24 moves upward under the spring force of the push spring 23 and resets to insert into the insertion hole of the fixed frame 27, thereby realizing the positioning of the isolation member 15.

[0024] Reference Figure 2 , 4 In addition to component 5, the isolation component 15 also includes three sets of evenly distributed rotating slots 31 on the fixed frame 27. The rotating slots 31 are arranged front to back and staggered left to right on the fixed frame 27. Two of the rotating slots in each set are rotatably connected to a connecting sleeve 32 (one rotating rod 42) via a rotating rod 42. A rotating cavity 34 is formed inside the connecting sleeve 32. The axes of two adjacent rotating cavities 34 are aligned. A sealing spacer 35 is fixed to the lower end of each connecting sleeve 32. The left end of the sealing spacer 35 is chamfered and has an inclined end 36. Two closely spaced torsion springs 33 are connected between the connecting sleeves 32 at the upper ends of the two sealing spacers 35 that fit together. The close ends of the two torsion springs 33 are fixedly connected to the fixing frame 27. Three telescopic abutments 40 are provided on the outer periphery of the insert rod 26. The telescopic abutments 40 are connected by springs and are telescopically mounted on the insert rod 26. The end of the telescopic abutment 40 extending out of the insert rod 26 is spherical and the end of the telescopic abutment 40 is hemispherical and can abut against and support the heater 14. The telescopic abutments 40 are installed in the sealing spacer 35.

[0025] Reference Figure 3Each mounting groove 11 has a sealing groove 41 connected to its upper end. A sealing gasket 29 is fixed on the side wall of the sealing groove 41. The right end of the mold 10, which is at the same level as the sealing groove 41, has an elastic buckle 28 that can engage with the fixing frame 27. The fixing frame 27 has a snap-fit ​​groove 30. The elastic buckle 28 can be snapped into the snap-fit ​​groove 30 by elastic force.

[0026] Reference Figure 7-9 The sealing spacer 35 on the left end has an inclined end 36. The left end faces of the three sealing spacers 35 on the right end are flat. Two rotating rods 42 are symmetrically arranged at the front and rear. The two rotating rods 42 are fixedly connected to the connecting sleeves 32 on the front and rear sides respectively. There are two rotating cavities 34 arranged in an arc shape. The center of the two rotating cavities 34 is located at the center of the two rotating rods 42 respectively. The rotating rods 42 are rotatably connected to the fixing frame 27. The left and right extensions of the rotating rods 42 are fixedly engaged with the connecting sleeves 32 respectively. By setting the left end faces of the three sealing spacers 35 on the right side to be flat, the sealing spacers 35 are closed at both ends of the heater 14 after being gathered in the mounting groove 11, thereby preventing the silicone rubber from overflowing during the heating process and improving the molding effect.

[0027] Working process or usage method: 1. The two molds 10 with mounting grooves 11 are fitted together and the threaded parts are installed between the two molds 10 to fix them. The two semi-circular mounting grooves 11 are spliced ​​together to form a circular cavity with the cavity opening to the right. Then, an electric heating rod / tube is installed and embedded in the drilled hole of the mold 10 for electric heating. In the subsequent work process, the heat is transferred to the silicone rubber strip through the mold 10 for heating and molding. At the outer end, first remove the positioning part 12. The operator holds the handle 25 and attaches the heater 14 onto the insertion rod 26. The heater 14 at this time includes a stainless steel base material that fits into the insertion rod 26, a thin-film heater welded to the base material, and a silicone rubber strip covering the thin-film heater. By pushing the base material against the telescopic abutment 40, the telescopic abutment 40 is retracted into the insertion rod 26 by a spring, thereby sequentially inserting multiple (three) base materials from left to right. Then, the user holds the handle 25 and tilts the insertion rod 26 downwards. The base materials will be under the action of gravity. The telescopic abutments 40 are re-engaged with their respective multiple (three) telescopic abutments 40. Then, the isolation piece 15 is removed and placed on the upper end of the positioning piece 12. At this time, the three sets of sealing sleeves 35 located on the right end abut against the right end face of the substrate. The fixing frame 27 is inserted into the handle 25 from left to right. The sealing sleeves 35 connected to the fixing frame 27 will drive the substrate to move to the right. The distance between the telescopic abutment 40 and the right end face of the sealing sleeves 35 at the front and rear corresponding positions is equal to the distance between the fixing frame 27 inserted into the handle 25, so that the user does not need to adjust the position of the heater 14 on the insert 26. like Figure 6 As shown, the inclined end of the fixing frame 27 abuts against the locking rod 24, pushing the lifting frame 22 to slide downward against the spring force of the push spring 23. Then, after the inclined end abuts against the wall of the insertion cavity 21, the locking rod 24 resets upward by the spring force at the push spring 23 and locks the fixing frame 27, thus realizing the installation of the fixing frame 27 on the handle 25.

[0028] 2. For example Figure 1 As shown, the assembled positioning component 12 and isolation component 15 are inserted into the mounting slot 11 at the open position. A sleeve is fixed to the section of the baffle 13 near the mounting slot 11. The insertion rod 26 is inserted into the sleeve at the baffle 13. The fixing bracket 27 and the sealing gasket 29 at the sealing groove 41 abut against each other to prevent slippage. When the insertion rod 26 is fully inserted into the mold 10, the elastic buckle 28 will engage with the snap-fit ​​groove 30 under the action of elasticity to achieve a relatively stable positioning. During the insertion of the insert rod 26, with the two sealing spacers 35 open via the torsion spring 33, the inclined end 36 of the left side of the sealing spacer 35 will first abut against the side wall of the mounting groove 11. Under this abutment, the sealing spacer 35 will rotate against the spring force of the torsion spring 33, resulting in the following... Figure 7 As shown, the gap between the two sealing spacers 35 is reduced until they fit together, and the outer peripheral surface of the sealing spacer 35 is completely fitted with the peripheral sidewall of the mounting groove 11.

[0029] 3. With the two molds 10 in contact, heat is provided by electric heating to heat and form the silicone rubber strip at the heater 14. After the work is completed, the insert 26 can be directly pulled out from the mounting slot 11 by holding the handle 25. At this time, the two molds 10 do not need to be disassembled and opened, so the silicone rubber sleeve of multiple batches of heaters can be heated and formed quickly.

[0030] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A batch forming mold for heater assemblies, characterized in that, include: Two molds (10) are assembled together, and an installation groove (11) is provided between the two molds (10) and distributed vertically. The installation groove (11) is open, and a baffle (13) is fixed on one end of the mold (10) and located in the installation groove (11). The upper end of the mounting groove (11) is connected to a sealing groove (41). A positioning element (12) is inserted into the mounting groove (11), and an isolation element (15) is inserted into the sealing groove (41). The positioning element (12) and the isolation element (15) are installed together. A heater (14) is sleeved on the positioning element (12). The isolation element (15) includes a fixing frame (27). A sealing spacer (35) is provided on the fixing frame (27). The sealing spacer (35) is used to separate the two heaters (14). The radius of the sealing spacer (35) is the same as the radius of the wall of the mounting groove (11).

2. The batch forming mold for heater assemblies according to claim 1, characterized in that: Connecting sleeves (32) are fixedly provided on the two corresponding sealing spacers (35) at the front and back. Rotating cavities (34) are opened in the two connecting sleeves (32). Rotating rods (42) are slidably fitted in the rotating cavities (34). The rotating rods (42) extend to the left and right and are rotatably connected to the fixed frame (27). The two rotating rods (42) at the front and back are respectively fixedly connected to the connecting sleeves (32) on the front and back sides. Torsion springs (33) are connected between the two connecting sleeves (32) and the fixed frame (27). The sealing spacer (35) near the baffle (13) has an inclined end (36) facing the insertion direction.

3. The batch forming mold for heater components according to claim 1, characterized in that: The positioning component (12) includes a handle (25) and a plug rod (26). The handle (25) has a sliding cavity (20) and a plug-in cavity (21). A lifting frame (22) is slidably connected in the sliding cavity (20). A locking rod (24) is fixedly provided at the lower end of the lifting frame (22). A push spring (23) is connected between the upper part of the lifting frame (22) and the handle (25). The fixing frame (27) is inserted into the plug-in cavity (21) and can engage with the locking rod (24).

4. The batch forming mold for heater components according to claim 3, characterized in that: The outer periphery of the insertion rod (26) is provided with telescopic abutments (40) in the same number as the heaters (14) sleeved on the insertion rod (26). A spring connects the telescopic abutments (40) to the insertion rod (26), and the telescopic abutments (40) extend out of the insertion rod (26) in a spherical shape.

5. The batch forming mold for heater assemblies according to claim 1, characterized in that: A sealing gasket (29) is fixedly provided at the sealing groove (41). The sealing gasket (29) can fit against the side end of the fixing frame (27). An elastic buckle (28) is fixedly provided on the mold (10). A snap-fit ​​groove (30) is opened at the fixing frame (27). The elastic buckle (28) is elastically snapped onto the snap-fit ​​groove (30).

6. The batch forming mold for heater assemblies according to claim 3, characterized in that: The fixing frame (27) has an inclined surface near the end of the snap-fit ​​rod (24).

7. The batch forming mold for heater components according to claim 3, characterized in that: A sleeve is fixedly provided on the section of the baffle (13) near the mounting groove (11), and the sleeve is inserted into the insertion rod (26).

Images