Power-off protection device for shaping sealing strip of refrigerator door body

Abstract

The utility model relates to a protection device, belongs to the technical field of refrigerator manufacturing, and particularly relates to a power-off protection device for shaping a sealing strip of a refrigerator door body, which comprises a base, a control assembly and a heating assembly, the control assembly comprises a control box fixedly connected to one end of the peripheral wall of the supporting frame, a control mechanism and a power-off protection mechanism are arranged in the control box, the heating assembly comprises a supporting mechanism and a heating mechanism which are arranged at one end of the supporting frame, and the control mechanism comprises a power socket installed on one side of the outer wall of the control box; the effect of effectively improving the safety of the device is achieved, the sensor is arranged to sense the distance between the hot air gun head and the gun rack, then a signal is transmitted to the industrial controller, the industrial controller controls the on-off of an internal circuit of the device, the safety and the energy-saving effect of the device are improved, and the safety of the device is improved. The problem that certain safety risks are generated due to the fact that an existing start-stop switch is mistakenly touched is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator manufacturing, in particular to a power-off protection device for shaping a sealing strip of a refrigerator door. Background Art

[0002] During the production process of refrigerators, a hot air gun is needed to shape abnormal door seals. During the treatment process, the local defects of the door seals cannot be effectively treated, which will affect the sealing and appearance of the refrigerator. After such refrigerators enter the market, the brand reputation and company benefits will be damaged. Therefore, whether the refrigerator door seal problem can be effectively treated is directly related to whether this brand of refrigerator can continue to maintain and increase its market share.

[0003] The purpose of shaping the sealing strip is achieved by heating the door sealing strip, such as using a hot air gun to heat the sealing strip, and utilizing thermal expansion and contraction to expand the concave part of the sealing strip, thereby eliminating the concave part to achieve the purpose of shaping.

[0004] However, the hot air gun heating device commonly used currently usually adopts the method of manually pressing the switch to control the start and stop of the hot air gun. When the staff picks up or places the hot air gun head, there is a risk of accidentally touching the start and stop switch, which creates certain safety risks and causes unnecessary cost waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a power-off protection device for shaping the sealing strip of a refrigerator door, which effectively improves the safety of the device.

[0006] The technical solution to achieve the purpose of the utility model is: a power-off protection device for shaping the sealing strip of a refrigerator door, comprising a base, the top of which is fixedly connected to a support frame, and also comprising a control component and a heating component;

[0007] The control assembly comprises a control box fixedly connected to one end of the outer peripheral wall of the support frame, wherein a control mechanism and a power-off protection mechanism are arranged in the control box;

[0008] The heating assembly comprises a supporting mechanism and a heating mechanism which are arranged at one end of the supporting frame.

[0009] In some embodiments, the control mechanism includes a power socket installed on one side of the outer wall of the control box, a power switch is installed on the outer wall of the control box near the power socket, an industrial controller is installed on the other side of the outer wall of the control box, and a relay is fixedly connected to one side of the inner bottom of the control box, one end of the relay is fixedly connected to a pair of contact one, and the other end of the relay is fixedly connected to a pair of contact two.

[0010] In some embodiments, one end of each of the contact 1 and the contact 2 is clamped with a connector, an electric telescopic rod is fixedly connected to the inner bottom of the control box near the relay, and one end of one of the connectors is fixedly connected to the extended end of the electric telescopic rod, a limit frame is fixedly connected to the inner bottom of the control box near the electric telescopic rod, the extended end of the electric telescopic rod is slidably connected to the top of the limit frame, and the power socket is electrically connected to the power switch, the relay and the electric telescopic rod.

[0011] In some embodiments, the power-off protection mechanism includes a freewheeling diode fixedly connected to the bottom of the control box near the electric telescopic rod, and the freewheeling diode is electrically connected to the connector.

[0012] In some embodiments, the support mechanism includes a gun rack fixedly connected to the top of the support frame, a hot air gun head is clamped on one end of the gun rack, and a sensor is fixedly connected to the other end of the gun rack.

[0013] In some embodiments, the heating mechanism includes a hot air blower fixedly connected to the other side of the bottom of the control box, the input end of the hot air blower is fixedly connected to an air inlet pipe, a filter plate is installed on the outer wall of the control box near the air inlet pipe, and one end of the air inlet pipe is fixedly connected to the filter plate, the output end of the hot air blower is fixedly connected to an air outlet pipe, one end of the air outlet pipe is fixedly connected to a corrugated hose, and one end of the corrugated hose is fixedly connected to the head of the hot air gun.

[0014] Compared with the prior art, the present invention has the following significant advantages:

[0015] Firstly, the utility model senses the distance between the hot air gun head and the gun rack through the setting of the sensor, and then transmits the signal to the industrial controller, and controls the on and off of the internal circuit of the device through the industrial controller, thereby improving the safety and energy-saving effect of the device;

[0016] Second, the utility model is simple to operate and ingeniously designed. By setting a freewheeling diode, the high electromotive force generated by the internal coil of the relay when the power is off is consumed, thereby protecting other components in the circuit and prolonging the service life of the device.

[0017] The problem of certain safety risks caused by accidentally touching the existing start-stop switch is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of a first-view stereoscopic structure provided by the utility model in one embodiment;

[0020] Figure 2 It is a schematic diagram of a second viewing angle stereoscopic structure provided by the utility model in one embodiment;

[0021] Figure 3 It is a schematic diagram of a half-cut three-dimensional structure of some components provided in one embodiment of the utility model;

[0022] Figure 4 yes Figure 3 Enlarged structural diagram at A in the middle.

[0023] Description of reference numerals:

[0024] 1. Base; 2. Support frame; 3. Control box; 4. Gun rack; 5. Hot air gun head; 6. Corrugated hose; 7. Power socket; 8. Power switch; 9. Filter plate; 10. Industrial controller; 11. Sensor; 12. Air outlet duct; 13. Relay; 14. Hot air blower; 15. Air inlet duct; 16. Electric telescopic rod; 17. Contact 1; 18. Contact 2; 19. Connector; 20. Freewheeling diode; 21. Limit frame. DETAILED DESCRIPTION

[0025] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a power-off protection device for shaping the sealing strip of a refrigerator door through improvement. The technical solution of the utility model is:

[0027] like Figure 1 As shown, a power-off protection device for shaping the sealing strip of a refrigerator door includes a base 1, and a support frame 2 is fixedly connected to the top of the base 1 by bolts, wherein the base 1 and the support frame 2 are both made of stainless steel material to improve the overall structural strength and stability of the device, and also includes a control component and a heating component;

[0028] The control assembly includes a control box 3 fixedly connected to one end of the outer peripheral wall of the support frame 2 by bolts, and the control box 3 is provided with a control mechanism and a power-off protection mechanism;

[0029] The heating assembly includes a supporting mechanism and a heating mechanism which are arranged at one end of the supporting frame 2 .

[0030] like Figure 2 and Figure 3As shown, in a certain embodiment, in order to improve the safety of the device, the control mechanism includes a power socket 7 fixedly installed on one side of the outer wall of the control box 3 by bolts, wherein the power socket 7 is interconnected with the external power supply system to play a role in power supply, and a power switch 8 is fixedly installed on the outer wall of the control box 3 near the power socket 7 by bolts, wherein the power switch 8 plays a role in controlling the start and stop of the device, and an industrial controller 10 is installed on the other side of the outer wall of the control box 3. Through the setting of the industrial controller 10, it is convenient to control the operation of the device in real time, and a relay 13 is fixedly connected to one side of the inner bottom of the control box 3 by bolts, and one end of the relay 13 is fixedly connected to a pair of contact 1 17, and the other end of the relay 13 is fixedly connected to a pair of contact 2 18, and one end of each contact 17 and contact 2 18 A connector 19 is clamped on each of the control box 3, wherein the connector 19 is electrically connected to the contact 1 17 and the contact 2 18 through contact. An electric telescopic rod 16 is fixedly connected to the inner bottom of the control box 3 near the relay 13, and one end of one of the connectors 19 is fixedly connected to the extended end of the electric telescopic rod 16 by a bolt, wherein the electric telescopic rod 16 drives the connector 19 to move. A limit frame 21 is fixedly connected to the inner bottom of the control box 3 near the electric telescopic rod 16, and the extended end of the electric telescopic rod 16 is slidably connected to the top of the limit frame 21. By setting the limit frame 21, the stability of the movement of the limit frame 21 driven by the electric telescopic rod 16 is improved, and the power socket 7 is electrically connected to the power switch 8, the relay 13 and the electric telescopic rod 16.

[0031] like Figure 3 and Figure 4 As shown, in a certain embodiment, in order to improve the service life of the device, the power-off protection mechanism includes a freewheeling diode 20 fixedly connected to the bottom of the control box 3 near the electric telescopic rod 16, and the freewheeling diode 20 is electrically connected to the connector 19. Through the setting of the freewheeling diode 20, the high electromotive force generated by the coil in the relay 13 after power failure is consumed by the freewheeling diode 20, thereby protecting other components in the circuit and improving the service life of the device.

[0032] like Figure 2 As shown, in a certain embodiment, in order to improve the stability of the device, the supporting mechanism includes a gun rack 4 fixedly connected to the top of the supporting frame 2 by welding, wherein the gun rack 4 supports and fixes the hot air gun head 5, and the hot air gun head 5 is clamped on one end of the gun rack 4, and the other end of the gun rack 4 is fixedly connected to the sensor 11 by bolts, wherein the sensor 11 senses the distance between the hot air gun head 5 and the gun rack 4.

[0033] like Figure 2 and Figure 3As shown, in a certain embodiment, in order to improve the convenience of the device, the heating mechanism includes a hot air blower 14 fixedly connected to the other side of the bottom of the control box 3 by bolts, wherein the hot air blower 14 plays a role in providing high-temperature compressed air, and the input end of the hot air blower 14 is fixedly connected with an air inlet pipe 15, and a filter plate 9 is installed on the outer wall of the control box 3 near the air inlet pipe 15, and one end of the air inlet pipe 15 is fixedly connected with the filter plate 9. Through the setting of the filter plate 9, external dust is prevented from entering the hot air blower 14 through the air inlet pipe 15, and the output end of the hot air blower 14 is fixedly connected with the air outlet pipe 12, and one end of the air outlet pipe 12 is fixedly connected with the corrugated hose 6, and one end of the corrugated hose 6 is fixedly connected with the hot air gun head 5. Through the mutual cooperation between the air outlet pipe 12 and the corrugated hose 6, the high-temperature compressed air is output by the hot air gun head 5 to complete the heating and shaping of the sealing strip.

[0034] The specific working method is: when in use, first connect the device to the external power supply system through the power socket 7, then turn on the power switch 8, and then the staff holds the hot air gun head 5 and separates it from the gun rack 4, and the sensor 11 fixedly connected to the other end of the gun rack 4 senses that the distance between the hot air gun head 5 and the gun rack 4 is greater than the designed distance, and then the sensor 11 transmits a signal to the industrial controller 10, and the industrial controller 10 controls the electric telescopic rod 16 to drive the connecting head 19 to move, so that the connecting head 19 and the contact 2 18 contact each other to achieve electrical connection, and then the hot air blower 14 is started through the industrial controller 10, wherein the hot air blower 14 plays the role of providing high-temperature compressed air, and the high-temperature compressed air is made to flow through the cooperation between the air outlet pipe 12 and the corrugated hose 6. The heat gun head 5 outputs to complete the heating and shaping of the refrigerator sealing strip, and at the same time triggers the timing program inside the industrial controller 10. After the device has been running for a certain period of time, the industrial controller 10 controls the electric telescopic rod 16 to drive the connector 19 to move along the limit frame 21, so that the connector 19 and the contact 2 18 are separated from each other, thereby disconnecting the circuit inside the device and the hot air blower 14 stops working. When the circuit is disconnected, the high electromotive force generated by the coil in the relay 13 is consumed by the freewheeling diode 20 to protect other components in the circuit and improve the service life of the device. When the sensor 11 senses that the distance between the hot air gun head 5 and the gun frame 4 is less than the designed distance, the above operation is also performed to disconnect the circuit inside the device, thereby improving the safety and energy-saving effect of the device.

[0035] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A power-off protection device for shaping a refrigerator door sealing strip, comprising a base (1), the top of the base (1) being fixedly connected to a support frame (2), characterized in that: Also includes a control component and a heating component; The control assembly comprises a control box (3) fixedly connected to one end of the outer peripheral wall of the support frame (2), wherein a control mechanism and a power-off protection mechanism are arranged in the control box (3); The heating assembly comprises a supporting mechanism and a heating mechanism arranged at one end of the supporting frame (2); the control mechanism comprises a power socket (7) installed on one side of the outer wall of the control box (3); a power switch (8) is installed on the outer wall of the control box (3) near the power socket (7); an industrial controller (10) is installed on the other side of the outer wall of the control box (3); a relay (13) is fixedly connected to one side of the inner bottom of the control box (3); one end of the relay (13) is fixedly connected to a pair of first contacts (17); the other end of the relay (13) is fixedly connected to a pair of second contacts (18); the supporting mechanism comprises a gun rack (4) fixedly connected to the top of the supporting frame (2); one end of the gun rack (4) is clamped with a hot air gun head (5); and the other end of the gun rack (4) is fixedly connected to a sensor (11).

2. A power-off protection device for shaping the sealing strip of a refrigerator door according to claim 1, characterized in that: One end of each of the first contact (17) and the second contact (18) is clamped with a connector (19); the inner bottom of the control box (3) is fixedly connected to an electric telescopic rod (16) near the relay (13), and one end of one of the connectors (19) is fixedly connected to an extended end of the electric telescopic rod (16); the inner bottom of the control box (3) is fixedly connected to a limit frame (21) near the electric telescopic rod (16); the extended end of the electric telescopic rod (16) is slidably connected to the top of the limit frame (21), and the power socket (7) is electrically connected to the power switch (8), the relay (13) and the electric telescopic rod (16).

3. A power-off protection device for shaping the sealing strip of a refrigerator door according to claim 2, characterized in that: The power-off protection mechanism comprises a flyback diode (20) fixedly connected to the bottom of the control box (3) near the electric telescopic rod (16), and the flyback diode (20) is electrically connected to the connector (19).

4. A power-off protection device for shaping the sealing strip of a refrigerator door according to claim 1, characterized in that: The heating mechanism comprises a hot air blower (14) fixedly connected to the other side of the bottom of the control box (3); the input end of the hot air blower (14) is fixedly connected to an air inlet pipe (15); a filter plate (9) is installed on the outer wall of the control box (3) near the air inlet pipe (15); one end of the air inlet pipe (15) is fixedly connected to the filter plate (9); the output end of the hot air blower (14) is fixedly connected to an air outlet pipe (12); one end of the air outlet pipe (12) is fixedly connected to a corrugated hose (6); and one end of the corrugated hose (6) is fixedly connected to a hot air gun head (5).

Images