A preheating device for a mold

Abstract

The utility model relates to a kind of preheating equipment of mould, including the base of horizontal arrangement, base is erected with the heating platform of parallel arrangement with base, the edge of heating platform is located in the edge of base, and the shell of bottom surface opening setting is covered on heating platform, one side of shell is hinged with base, and the other side of shell is hinged between the base with electric telescopic rod capable of driving shell to open and close;The utility model can reduce the temperature difference between mould plate and mould inside by preheating mould plate, to reduce waiting time, so as to improve the production efficiency of product.

Description

Technical Field

[0001] This utility model belongs to the field of heating equipment technology, and in particular relates to a preheating device for molds. Background Technology

[0002] like Figure 8 As shown, this is a template used in the prior art to support silicone rubber products. Specifically, during use, the template is located between the upper and lower molds of the mold. When the silicone rubber product is injected, the molded silicone rubber product will eventually be located in the slots opened on the template. In this way, when demolding, after the template is removed from the mold, multiple molded silicone rubber products can be removed from the mold at the same time.

[0003] To ensure product molding quality and reduce thermal stress and deformation, the mold needs to be heated to a certain temperature before injection molding silicone rubber products. In existing technologies, a dual-mold production method is usually used, where one mold is placed inside the mold for production, while the other mold is placed outside after the silicone rubber product is removed, awaiting the next use. However, since the temperature of the outside mold will decrease, a large temperature difference will occur between the outside mold and the inside of the mold when the outside mold is put back into the mold. If injection molding is performed directly under these conditions, product defects will occur during production. Therefore, to improve product yield, a waiting period is often required after the outside mold is placed into the mold to reduce the temperature difference between the outside mold and the inside of the mold. However, this will affect the production efficiency of the product. Thus, existing technologies still have shortcomings and deficiencies. Utility Model Content

[0004] The purpose of this invention is to provide a preheating device for molds to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: A preheating device for a mold includes a horizontally arranged base, on which a heating platform is mounted parallel to the base. The edge of the heating platform is located inside the edge of the base, and a housing with an open bottom surface is covered on the heating platform. One side of the housing is hinged to the base, and the other side of the housing is hinged to the base with an electric telescopic rod capable of opening and closing the housing.

[0006] Furthermore, the heating platform has a split structure, including a first heating platform and a second heating platform arranged parallel to the base. The top surface of the second heating platform and the base are connected by a pad. The top surface of the first heating platform and the top surface of the second heating platform are flush. At least two sets of vertically opposite elastic telescopic components are installed between the top surface of the first heating platform and the top surface of the base.

[0007] Furthermore, each of the elastic telescopic components includes vertically distributed telescopic rods, with both ends of the telescopic rods connected to the base and the first heating platform, respectively. Each telescopic rod is fitted with a spring, and both ends of the spring are also connected to the base and the first heating platform, respectively.

[0008] Furthermore, both the first heating platform and the second heating platform are shell structures with cavities and made of thermally conductive material, and both the first heating platform and the second heating platform are equipped with a plurality of electric heating tubes, which are electrically connected to a controller, and the controller is electrically connected to the electric telescopic rod.

[0009] Furthermore, the base is a shell structure with a cavity, and the outer surface of the base is coated with a heat-insulating coating and equipped with multiple push-button switches electrically connected to the controller, which is installed inside the base.

[0010] Furthermore, a temperature regulator capable of adjusting the heating temperature of the electric heating tube is installed on the outer surface of the base, and the temperature regulator is electrically connected to the controller.

[0011] Furthermore, the two ends of the electric telescopic rod are detachably hinged to the base and the housing, respectively.

[0012] Furthermore, a horizontally distributed first threaded rod is provided outside the base, one end of the first threaded rod is connected to the base, the end of the electric telescopic rod near the base is slidably sleeved on the first threaded rod, and a first nut is sleeved on the first threaded rod outside the electric telescopic rod.

[0013] Furthermore, a horizontally distributed second threaded rod is provided on the outside of the housing. One end of the second threaded rod is connected to the housing. The end of the electric telescopic rod closest to the housing is the telescopic end and is slidably sleeved on the second threaded rod. A second nut is fitted on the second threaded rod on both sides of the electric telescopic rod.

[0014] Furthermore, a handle is installed on the housing.

[0015] The beneficial effects of this utility model by adopting the above technical solution are as follows: When this invention is in use, if one template is inside the mold for production, after opening the machine casing, the other external template can be placed on the heating platform. After closing the machine casing, the heating platform can preheat the template and maintain a certain temperature. In other words, while one template is inside the mold for production, this invention can simultaneously preheat the other external template. When it is necessary to put the external template back into the mold, after opening the machine casing, the operator wearing heat-resistant gloves can put the preheated template into the mold. This reduces the temperature difference between the template and the inside of the mold, reduces waiting time, and thus improves product production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified structural diagram of part A in the middle; Figure 3 for Figure 1 A magnified structural diagram of section B in the middle; Figure 4 for Figure 1 The main view; Figure 5 for Figure 4 A magnified structural diagram of section C in the middle; Figure 6 This is a structural schematic diagram of some of the devices of this utility model in cross-sectional view; Figure 7 This is a structural diagram of the present invention in its use state; Figure 8 This is a schematic diagram of the structure of a template in the prior art.

[0017] Reference numerals: 1. First heating platform; 2. Second heating platform; 3. Elastic telescopic component; 31. Telescopic rod; 32. Spring; 4. Base; 5. Housing; 6. Electric telescopic rod; 7. Pad; 8. Electric heating element; 9. Push-button switch; 10. Temperature regulator; 11. First threaded rod; 12. First nut; 13. Second threaded rod; 14. Second nut; 15. Handle; 16. Template; 17. U-shaped handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 7 As shown, this utility model provides a preheating device for molds, which can be used for preheating molds such as... Figure 8 The template 16 shown is preheated. Specifically, U-shaped handles 17 are fixed on both sides of the template 16, which are parallel to the template 16 and have U-shaped openings facing the template 16. When in use, the template 16 can be easily transferred by holding the U-shaped handles 17.

[0020] This utility model includes a horizontally arranged base 4, on which a heating platform is mounted parallel to the base 4. In use, the heating platform can support a template 16 and heat the template 16. The edge of the heating platform is located inside the edge of the base 4, and a housing 5 with an open bottom surface is provided on the heating platform. One side of the housing 5 is hinged to the base 4, and the other side of the housing 5 is hinged to the base 4 with an electric telescopic rod 6 that can drive the housing 5 to open and close. The electric telescopic rod 6 can be configured as an electric push rod. Specifically, when the telescopic end of the electric telescopic rod 6 is in the extended state, the housing 5 can be opened; and when the telescopic end of the electric telescopic rod 6 is in the retracted state, the housing 5 can be closed so that the housing 5 covers the heating platform.

[0021] Specifically, during use, when one template 16 is inside the mold for production, after opening the machine casing 5, the other external template 16 can be placed on the heating table. Then, after closing the machine casing 5, the heating table 16 can preheat the template and maintain a certain temperature. In other words, when one template 16 is inside the mold for production, this invention can simultaneously preheat the other external template 16. Then, when it is necessary to put the external template 16 back into the mold, after opening the machine casing 5, the operator wearing heat-resistant gloves can put the preheated template 16 into the mold. This can reduce the temperature difference between the template 16 and the inside of the mold, reduce waiting time, and thus improve the production efficiency of the product.

[0022] Furthermore, such as Figure 1 , Figure 4 , Figure 6 and Figure 7 As shown, the heating platform has a split structure, including a first heating platform 1 and a second heating platform 2 arranged parallel to the base 4. The top surface of the second heating platform 2 is connected to the top surface of the base 4 by a pad 7. The top surface of the first heating platform 1 is flush with the top surface of the second heating platform 2, and at least two sets of vertically opposite elastic telescopic components 3 are installed between the top surfaces of the first heating platform 1 and the base 4. Specifically, in use, after the template 16 is placed on the heating platform, one of the U-shaped handles 17 on the template 16 moves away from the template 16. The template 16 is positioned on the first heating platform 1. Since the top surface of the first heating platform 1 is flush with the top surface of the second heating platform 2, it can be ensured that both the template 16 and the U-shaped handle 17 are within the heating area of ​​the heating platform during heating. Furthermore, when the preheated template 16 needs to be placed into the mold, the operator, after wearing heat-resistant gloves, can compress the elastic telescopic component 3 by pressing the first heating platform 1. At this time, the side of the U-shaped handle 17 away from the template 16 can be suspended in the air, making it easier to pick up the template 16 on the heating platform.

[0023] The specific setup method for the elastic telescopic component 3 is as follows: Figure 4 and Figure 5As shown, each of the elastic telescopic components 3 includes vertically distributed telescopic rods 31. The two ends of the telescopic rods 31 are connected to the base 4 and the first heating platform 1, respectively. Each telescopic rod 31 is fitted with a spring 32, and the two ends of the spring 32 are also connected to the base 4 and the first heating platform 1, respectively. Specifically, in the initial state, the spring 32 can make the top surface of the first heating platform 1 flush with the top surface of the second heating platform 2. In use, by pressing the first heating platform 1, the telescopic rods 31 can be extended and retracted synchronously, compressing the spring 32. Then, when the first heating platform 1 is released, the first heating platform 1 can be restored to the initial state under the action of the spring 32.

[0024] Furthermore, such as Figure 6 As shown, both the first heating platform 1 and the second heating platform 2 are shell structures with cavities and made of thermally conductive material. Several electric heating tubes 8 are installed inside the first heating platform 1 and the second heating platform 2. The several electric heating tubes 8 are electrically connected to a controller, which is a PLC controller in the prior art, and is connected to a power cord with a plug. The controller is electrically connected to the electric telescopic rod 6. Specifically, in use, the controller can control the start and stop of the electric telescopic rod 6 and the several electric heating tubes 8. When the electric heating tubes 8 are started, the template 16 can be preheated through the heat conduction of the heating platform.

[0025] Furthermore, such as Figure 1 , Figure 4 and Figure 7 As shown, the base 4 is a shell structure with a cavity, and the outer surface of the base 4 is coated with a heat insulation coating and multiple push-button switches 9 electrically connected to the controller are installed. Specifically, the push-button switches 9 include a main power button, a start button and a stop button for the electric heating tube 8, and an extension button and a retraction button for the electric telescopic rod 6, etc., for easy operation. The controller is installed inside the base 4. In addition, the bottom surface of the base 4 is provided with an opening and a detachable cover structure is installed, and a vent is also provided on the base 4.

[0026] Furthermore, such as Figure 1 , Figure 4 and Figure 7 As shown, a temperature regulator 10 capable of adjusting the heating temperature of the electric heating tube 8 is installed on the outer surface of the base 4. The temperature regulator 10 is electrically connected to the controller, so that the heating temperature of the electric heating tube 8 can be adjusted according to one's own needs during use.

[0027] Furthermore, such as Figures 1 to 4 and Figure 7As shown, the two ends of the electric telescopic rod 6 are detachably hinged to the base 4 and the housing 5, respectively, which facilitates the installation and removal of the electric telescopic rod 6 between the base 4 and the housing 5. In addition, the number of electric telescopic rods 6 can be set to two, and the two electric telescopic rods 6 are arranged opposite to each other on both sides of the base 4. In use, the two electric telescopic rods 6 can be controlled by the controller to extend and retract synchronously.

[0028] The specific arrangement of the detachable hinge between the electric telescopic rod 6 and the base 4 is as follows: Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, a horizontally distributed first threaded rod 11 is provided outside the base 4. One end of the first threaded rod 11 is connected to the base 4. The end of the electric telescopic rod 6 near the base 4 is slidably sleeved on the first threaded rod 11, and a first nut 12 is fitted on the first threaded rod 11 outside the electric telescopic rod 6. The specific arrangement of the detachable hinge between the electric telescopic rod 6 and the housing 5 is as follows: Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, a second threaded rod 13 is horizontally distributed outside the housing 5. One end of the second threaded rod 13 is connected to the housing 5. The end of the electric telescopic rod 6 near the housing 5 is the telescopic end and is slidably sleeved on the second threaded rod 13. A second nut 14 is sleeved on the second threaded rod 13 on both sides of the electric telescopic rod 6.

[0029] Specifically, when disassembling the electric telescopic rod 6, the first nut 12 and the second nut 14 located outside the electric telescopic rod 6 can be removed to take off the electric telescopic rod 6; when installing the electric telescopic rod 6, the two ends of the electric telescopic rod 6 can be respectively fitted onto the first threaded rod 11 and the second threaded rod 13, and then the first nut 12 and the second nut 14 can be installed, which makes it easy to install and remove the electric telescopic rod 6 between the base 4 and the housing 5.

[0030] Furthermore, such as Figure 1 , Figure 4 and Figure 7 As shown, a handle 15 is installed on the housing 5. Specifically, the handle 15 can be set as a U-shaped structure with the U-shaped opening facing the housing 5. By setting the handle 15, when the electric telescopic rod 6 is damaged, the housing 5 can be opened and closed manually after the electric telescopic rod 6 is removed.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A preheating device for a mold, characterized in that: The device includes a horizontally positioned base, on which a heating platform is mounted parallel to the base. The edge of the heating platform is located inside the edge of the base, and a housing with an open bottom surface is mounted on the heating platform. One side of the housing is hinged to the base, and the other side of the housing is hinged to the base with an electric telescopic rod that can drive the housing to open and close.

2. The preheating device for a mold according to claim 1, characterized in that: The heating platform has a split structure, including a first heating platform and a second heating platform arranged parallel to the base. The second heating platform is connected to the top surface of the base by a pad. The top surface of the first heating platform is flush with the top surface of the second heating platform, and at least two sets of vertically opposite elastic telescopic components are installed between the top surface of the first heating platform and the top surface of the base.

3. The preheating equipment for a mold according to claim 2, characterized in that: Each of the elastic telescopic components includes vertically distributed telescopic rods, with both ends of the telescopic rods connected to the base and the first heating platform, respectively. Each telescopic rod is fitted with a spring, and both ends of the spring are also connected to the base and the first heating platform, respectively.

4. The preheating device for a mold according to claim 2, characterized in that: Both the first heating platform and the second heating platform are shell structures with cavities and made of thermally conductive material. Both the first heating platform and the second heating platform are equipped with several electric heating tubes. The several electric heating tubes are electrically connected to a controller, which is electrically connected to the electric telescopic rod.

5. The preheating device for a mold according to claim 4, characterized in that: The base is a shell structure with a cavity, and the outer surface of the base is coated with a heat-insulating coating and has multiple push-button switches that are electrically connected to the controller installed inside the base.

6. The preheating device for a mold according to claim 5, characterized in that: A temperature regulator capable of adjusting the heating temperature of the electric heating tube is installed on the outer surface of the base, and the temperature regulator is electrically connected to the controller.

7. The preheating device for a mold according to claim 1, characterized in that: The two ends of the electric telescopic rod are detachably hinged to the base and the housing, respectively.

8. The preheating device for a mold according to claim 7, characterized in that: A first threaded rod is horizontally distributed outside the base. One end of the first threaded rod is connected to the base. The end of the electric telescopic rod near the base is slidably sleeved on the first threaded rod, and a first nut is fitted on the first threaded rod outside the electric telescopic rod.

9. A preheating device for a mold according to claim 7, characterized in that: The outer side of the housing is provided with horizontally distributed second threaded rods, one end of which is connected to the housing. The end of the electric telescopic rod closest to the housing is the telescopic end and is slidably sleeved on the second threaded rod. A second nut is fitted on the second threaded rods on both sides of the electric telescopic rod.

10. A preheating device for a mold according to claim 7, characterized in that: A handle is installed on the casing.

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