Hot plate welding device with heat insulation structure

Abstract

The hot plate welding device with the heat insulation structure comprises a welding box, a middle partition plate, a heat insulation cover and a driving structure, hot molds are fixed to the upper surface and the lower surface of the middle partition plate respectively, the driving structure drives the middle partition plate to reciprocate in the front-back direction, and the heat insulation cover is fixedly connected with the welding box and made of heat insulation materials. The heat insulation covers and the hot molds are arranged in a one-to-one correspondence mode, the heat insulation covers cover the exteriors of the corresponding hot molds and are in sliding connection with the upper surface and the lower surface of the middle partition plate, an openable door body is arranged in front of the heat insulation covers in the moving direction of the middle partition plate, when the door body is opened, the hot molds can stretch out of the heat insulation covers, and when the door body is closed, the hot molds can stretch out of the heat insulation covers. A heat insulation cavity is defined by the heat insulation cover and the middle partition plate. The heat insulation cover is used in the welding box, so that an effective heat insulation effect can be achieved, heat of a hot mold is controlled in a fixed space and is discharged to a fixed position in order, and the working risk that a user of the hot plate welding machine needs to be in a high-temperature working environment for a long time is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic hot plate welding, in particular to a hot plate welding device with a heat insulation structure. Background Art

[0002] High temperature is an unavoidable problem in hot plate welding. Currently, most hot plate welding equipment is equipped with various types of heat insulation devices, such as welding machine heat insulation board, rear door fan, and top fan. Usually, the heat insulation board is set on the inner top surface of the welding machine. Its function is to block the heat from being conducted to the front side of the hot plate welding mold. However, the heat insulation board cannot block the heat radiation and heat conduction of the lower mold. Therefore, in the actual welding process, the temperature generated by the hot plate cannot be effectively controlled. The most intuitive manifestation is the high temperature environment around the welding machine. The users of the welding machine need to be in a high temperature working environment for a long time and bear the work risks brought by high temperature. Utility Model Content

[0003] In order to reduce the high temperature hazards caused by hot plate welding, the utility model provides a hot plate welding device with a heat insulation structure to solve the above problem.

[0004] The utility model adopts the following technical solution to solve the technical problem: a hot plate welding device with a heat insulation structure, comprising a welding box, a middle partition, a heat insulation cover and a driving structure, wherein heat molds are respectively fixed on the upper and lower surfaces of the middle partition, the driving structure drives the middle partition to reciprocate in the front-rear direction, the heat insulation cover is fixedly connected to the welding box and is made of a heat-insulating material; the heat insulation cover and the heat mold are arranged in a one-to-one correspondence, the heat insulation cover is covered on the outside of the corresponding heat mold and is slidably connected to the upper and lower surfaces of the middle partition, the heat insulation cover has an openable door body in front of the moving direction of the middle partition, when the door body is opened, the heat mold can extend out of the heat insulation cover, when the door body is closed, the heat insulation cover and the middle partition form an insulation cavity.

[0005] Furthermore, the upper and lower surfaces of the middle partition are both provided with guide rails, and the heat insulation cover is provided with a slider that slidably cooperates with the guide rails.

[0006] Furthermore, the heat insulation cover includes side panels, a top panel and a door body, and the door body and the top panel are rotatably connected to a rotating shaft.

[0007] Furthermore, the door body rotates synchronously with the rotating shaft, and the heat insulation cover is provided with a driving motor for driving the rotating shaft to rotate.

[0008] Furthermore, a hydraulic cylinder is provided on the side plate, and a telescopic rod of the hydraulic cylinder is hinged to the door body.

[0009] Furthermore, a plurality of through holes are provided at the rear end of the heat insulation cover, and a fan is installed in each of the through holes.

[0010] Furthermore, an infrared thermometer is arranged inside the heat insulation cover, and a digital display is arranged outside the heat insulation cover. The digital display, the infrared thermometer and the fan are electrically connected to the controller.

[0011] Furthermore, the heat insulation cover comprises an inner heat insulation layer and an outer heat insulation layer, the inner heat insulation layer is made of aluminum, and the outer heat insulation layer is made of asbestos.

[0012] Furthermore, the top plate of the heat shield is fixed with studs, the studs pass through the welding box, and nuts are connected to the studs to fix the heat shield to the welding box.

[0013] The beneficial effects of the utility model are:

[0014] (1) The utility model uses a heat insulation cover in the welding box to achieve effective heat insulation, control the heat of the hot mold in a fixed space, and discharge it to a fixed position in an orderly manner, thereby reducing the work risks that users of the hot plate welding machine need to endure in a high-temperature working environment for a long time.

[0015] (2) The utility model provides a fan on the heat insulation cover, which can effectively control the ambient temperature of the hot mold and reduce the influence of the expansion state of the hot plate mold caused by the change of ambient temperature.

[0016] (3) The utility model measures the internal temperature of the heat insulation cover by means of an infrared thermometer, and interconnects the infrared thermometer and a fan with the computer system of the welding machine to achieve internal temperature monitoring and effective control of the heat insulation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a stereogram of a specific embodiment of the hot plate welding device with a heat insulation structure described in the utility model;

[0019] Figure 2 It is a schematic diagram of the rear side plate of the heat insulation cover in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the drive motor driving the door body in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the hydraulic cylinder driving the door body in the utility model.

[0022] In the figure, 1, welding box, 2, middle partition, 3, heat insulation cover, 301, door body, 302, side plate, 303, top plate, 4, upper hot mold, 5, lower hot mold, 6, guide rail, 7, slider, 8, rotating shaft, 9, driving motor, 10, hydraulic cylinder, 11, through hole, 12, fan, 13, stud, 14, infrared thermometer, 15, digital display. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the present invention, the terms "front" and "rear" indicating the orientation are based on the direction of movement of the hot mold. The workpiece is located in front of the hot mold, the direction in which the hot mold approaches the workpiece is the front, and the direction in which the hot mold moves away from the workpiece is the rear.

[0025] like Figure 1 As shown, a hot plate welding device with a heat insulation structure comprises a welding box 1, a middle partition 2, a heat insulation cover 3 and a driving structure, wherein heat molds are fixed to the upper and lower surfaces of the middle partition 2 respectively, and the driving structure drives the middle partition 2 to reciprocate in the front and rear directions, and the driving structure is a telescopic driving device provided inside the welding machine, which is used to control the telescopic extension of the heat mold, and the heat insulation cover 3 is fixedly connected to the welding box 1 and is made of a heat-insulating material; the heat insulation cover 3 and the heat mold are arranged one by one in correspondence, and the heat insulation cover 3 covers the outside of the corresponding heat mold and is slidably connected to the upper and lower surfaces of the middle partition 2, and the heat insulation cover 3 has an openable door body 301 in front of the movement direction of the middle partition 2, and when the door body 301 is opened, the heat mold can extend out of the heat insulation cover 3, and when the door body 301 is closed, the heat insulation cover 3 and the middle partition 2 form an insulation cavity.

[0026] like Figure 1 As shown, the hot mold includes an upper hot mold 4 and a lower hot mold 5. The upper hot mold 4 is located above the middle partition 2, and the lower hot mold 5 is located below the middle partition 2. Two heat insulation covers 3 cover the outside of the upper hot mold 4 and the lower hot mold 5 respectively. The middle partition 2 is connected to the driving structure, so the setting of the heat insulation cover 3 will not interfere with the driving structure.

[0027] The driving structure is a mechanical structure capable of realizing telescopic movement. It is a conventional technical means in welding machines to use a telescopic mechanical arm and realize the approach and separation of the hot mold and the workpiece through the telescopic movement of the hot mold. Therefore, the specific structure of the driving structure is not described and illustrated in the utility model.

[0028] The utility model can heat two upper and lower workpieces at the same time. When the workpieces need to be welded, the door body 301 is opened, and the driving structure is started to drive the middle partition 2, the upper hot mold 4 and the lower hot mold 5 to extend at the same time. The upper hot mold 4 heats the bottom of one of the plastic parts, and the lower hot mold 5 heats the top of the other plastic part. After the surfaces of the two plastic parts melt, the driving structure retracts, and the two plastic parts can be butted and bonded. When the welding device is idle, the door body 301 can be closed, and the upper hot mold 4 and the lower hot mold 5 are respectively sealed in their respective insulation cavities. The heat of the hot mold is controlled in a fixed space and discharged to a fixed position in an orderly manner, which reduces the work risk that the users of the hot plate welding machine need to bear in a high-temperature working environment for a long time, and prevents burns caused by accidentally touching the welding mold during production and debugging.

[0029] In order to improve the sealing effect of the heat insulation cavity and reduce the friction between the heat insulation cover 3 and the middle partition 2 when the hot mold is extended and retracted, the heat insulation cover 3 and the middle partition 2 preferably adopt the following sliding matching structure: the upper and lower surfaces of the middle partition 2 are both provided with guide rails 6, and the heat insulation cover 3 is provided with a slider 7 that slides with the guide rails 6. When the hot mold retreats into the heat insulation cover 3, the guide rails 6 will play a certain guiding and positioning role, thereby ensuring that the hot mold retreats to the same position.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, the heat shield 3 includes side panels 302, a top panel 303 and a door body 301, and the door body 301 and the top panel 303 are rotatably connected to the rotating shaft 8. The side panels 302, the top panel 303 and the door body 301 are all heat shields. When the welding process starts, the door body 301 on the front side of the heat shield 3 is opened, and the hot mold moves forward for welding heating. After the welding heating is completed, the hot mold retreats to a specified position in the heat shield 3, and the door body 301 on the front side of the heat shield 3 is closed. Finally, the heat shield 3 can completely cover the hot mold. The heat shield 3 includes an inner heat insulation layer and an outer heat insulation layer, wherein the inner heat insulation layer is made of aluminum, and the outer heat insulation layer is made of asbestos.

[0031] The fixing structure of the heat shield 3 and the welding box 1 is as follows: Figure 1 As shown, the top plate 303 of the heat shield 3 is fixed with studs 13 , the studs 13 pass through the welding box 1 , and nuts are connected to the studs 13 to fix the heat shield 3 to the welding box 1 .

[0032] The rotation of the door body 301 can be achieved by the following structure: Figure 3 As shown, the door body 301 rotates synchronously with the rotating shaft 8, and the heat shield 3 is provided with a driving motor 9 for driving the rotating shaft 8 to rotate. The following structure can also be adopted, such as Figure 4As shown, a hydraulic cylinder 10 is provided on the side plate 302, and the telescopic rod of the hydraulic cylinder 10 is hinged to the door body 301. The drive motor 9 or the hydraulic cylinder 10 can be electrically connected to the controller of the welding machine to make the door body 301 flip and move synchronously with the welding process.

[0033] The temperature of the hot mold needs to be controlled within a certain temperature. In order to prevent the hot mold temperature from being too high, a plurality of through holes 11 are provided at the rear end of the heat shield 3. A fan 12 (such as Figure 2 As shown). In a further design, an infrared thermometer 14 is also provided inside the heat shield 3, and a digital display 15 is provided outside the heat shield 3. The digital display 15, the infrared thermometer 14 and the fan 12 are electrically connected to the controller. The controller is the computer system of the welding machine. The infrared thermometer 14 measures the internal temperature of the heat shield 3 and transmits the temperature signal to the controller. The controller calculates and analyzes the temperature value and displays it on the digital display 15, which is convenient for the staff to observe the temperature value from the outside and set the internal temperature threshold of the heat shield 3. After exceeding the temperature, the controller controls the speed of the fan 12. The internal temperature of the heat shield 3 is monitored and effectively controlled.

[0034] The utility model has a simple structure and can effectively provide heat insulation from a safety perspective, preventing personnel from accidentally touching the welding mold and causing burns during production and debugging. From an energy-saving perspective, the heat insulation cover can provide good thermal insulation effect, reducing heat loss and energy waste. From a practical perspective, it can effectively stabilize the ambient temperature of the welding mold and try to avoid the expansion state of the welding mold being affected by changes in ambient temperature. From a maintenance perspective, it can protect the hot plate welding mold and avoid damage to the welding mold during idleness.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hot plate welding device with a heat insulation structure, characterized in that: It comprises a welding box (1), a middle partition (2), a heat shield (3) and a driving structure, wherein the upper and lower surfaces of the middle partition (2) are respectively fixed with heat molds, the driving structure drives the middle partition (2) to reciprocate in the front-rear direction, and the heat shield (3) is fixedly connected to the welding box (1) and is made of a heat-insulating material; The heat insulation cover (3) is arranged in one-to-one correspondence with the heat mold, the heat insulation cover (3) covers the outside of the corresponding heat mold and is slidably connected to the upper and lower surfaces of the middle partition (2), the heat insulation cover (3) has an openable door body (301) in front of the movement direction of the middle partition (2), when the door body (301) is opened, the heat mold can extend out of the heat insulation cover (3), when the door body (301) is closed, the heat insulation cover (3) and the middle partition (2) enclose a heat insulation cavity.

2. The hot plate welding device with a heat insulation structure according to claim 1, characterized in that: Guide rails (6) are provided on the upper and lower surfaces of the middle partition plate (2), and the heat insulation cover (3) is provided with a sliding block (7) that slidably cooperates with the guide rails (6).

3. The hot plate welding device with a heat insulation structure according to claim 1, characterized in that: The heat insulation cover (3) comprises a side plate (302), a top plate (303) and a door body (301); the door body (301) and the top plate (303) are rotatably connected to a rotating shaft (8).

4. The hot plate welding device with a heat insulation structure according to claim 3, characterized in that: The door body (301) rotates synchronously with the rotating shaft (8), and the heat insulation cover (3) is provided with a driving motor (9) for driving the rotating shaft (8) to rotate.

5. The hot plate welding device with a heat insulation structure according to claim 3, characterized in that: A hydraulic cylinder (10) is provided on the side plate (302), and a telescopic rod of the hydraulic cylinder (10) is hinged to the door body (301).

6. The hot plate welding device with a heat insulation structure according to claim 1, characterized in that: A plurality of through holes (11) are provided at the rear end of the heat insulation cover (3), and a fan (12) is installed in each of the through holes (11).

7. The hot plate welding device with a heat insulation structure according to claim 6, characterized in that: An infrared thermometer (14) is also provided inside the heat insulation cover (3), and a digital display (15) is provided outside the heat insulation cover (3). The digital display (15), the infrared thermometer (14) and the fan (12) are electrically connected to the controller.

8. The hot plate welding device with a heat insulation structure according to claim 1, characterized in that: The heat insulation cover (3) comprises an inner heat insulation layer and an outer heat insulation layer, the inner heat insulation layer is made of aluminum material, and the outer heat insulation layer is made of asbestos material.

9. The hot plate welding device with a heat insulation structure according to claim 3, characterized in that: The top plate (303) of the heat shield (3) is fixed with a stud (13), the stud (13) passes through the welding box (1), and nuts are connected to the stud (13) to fix the heat shield (3) and the welding box (1).

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