Automatic winding equipment for spiral coil of evaporator of clothes dryer

Abstract

The utility model relates to the technical field of evaporator accessory production, in particular to automatic winding equipment for a spiral coil of a clothes dryer evaporator, which overcomes the defects in the prior art and comprises a fixing seat, an adjusting component and a beam tube component, the fixing seat is of an L-shaped structure, an L-shaped fixing frame is arranged between the side walls of one side of the fixing seat, and the adjusting component is arranged on the fixing seat. The fixing frame is further provided with a cross beam connected with the fixing frame into a whole, an operation panel is installed on the fixing frame, the adjusting assembly is arranged along the vertical side wall perpendicular to the fixing base, a pressing plate is elastically arranged above the adjusting assembly along the vertical side wall of the fixing base, the beam tube assembly comprises an L-shaped support and a movable base, and the movable base slides between the fixing frame and the cross beam. The movable base is arranged on the fixed frame, the connecting frame of a J-shaped structure is arranged on the movable base, the connecting frame slides in the length direction of the fixed frame, and compared with the prior art, the pipeline winding device can effectively avoid the problem that a pipeline is loosened or partially wound in the winding process.

Description

An automatic winding device for the spiral coil of an evaporator in a clothes dryer. Technical Field

[0001] This utility model relates to the field of evaporator parts manufacturing technology, specifically to an automatic winding device for the spiral coil of a dryer evaporator. Background Technology

[0002] With the rapid development of the home appliance industry, clothes dryers have gradually become one of the essential household appliances due to their convenience and efficiency. As the core component of a clothes dryer, the evaporator's performance directly affects the dryer's energy efficiency and drying effect. In the manufacturing process of the evaporator, the spiral coil is a crucial component, and its structural design (such as coil spacing, uniformity, and sealing) has a significant impact on the evaporator's heat exchange efficiency and durability. Currently, although there are some automated winding machines on the market, they are mostly applicable to simple tubing or specific specifications, lacking a dedicated solution for the spiral coils of clothes dryer evaporators.

[0003] Chinese utility model patent CN218744168U discloses a coil evaporator winding molding die. This molding die effectively solves the problem of frequently changing winding drum models of different shapes when processing the pipe winding of two different types of coil evaporators. However, the following problems still exist:

[0004] 1. During the winding process, the outermost layer of tubing is prone to loosening, which affects the winding effect;

[0005] 2. During the winding process, although the heating of the heating coil makes the pipe easier to wind up, there is still a problem of partial winding of the pipe, so that the winding problem still exists after winding.

[0006] Therefore, we propose an automatic winding device for the spiral coil of a clothes dryer evaporator to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide an automatic winding device for the spiral coil of an evaporator in a clothes dryer, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An automatic winding device for the evaporator spiral coil of a clothes dryer includes a fixed base, an adjustment component, and a bundled tube component. The fixed base is arranged in an "L" shape. An "L" shaped fixing frame is installed between the side walls of the fixed base on one side. A crossbeam integrated with the fixing frame is also provided on the fixing frame, and an operation panel is installed on the fixing frame.

[0010] The adjusting component is installed along the vertical side wall perpendicular to the fixed base, and a pressure plate is elastically installed above the adjusting component along the vertical side wall of the fixed base.

[0011] The tube assembly includes an L-bracket and a movable seat. The movable seat slides between the fixed frame and the crossbeam, and the movable seat is equipped with a "J"-shaped connecting frame that slides along the length of the fixed frame. A through hole is provided in the middle of the movable seat. The L-bracket is located below the bottom wall of the crossbeam and slides and adjusts along its length. The L-bracket has a tube hole, and two pressure rollers are elastically provided on one side of the tube hole. The L-bracket and the movable seat are fixed together by a connecting screw.

[0012] According to the above technical solution, the adjustment assembly includes an adjustment flap, a fixed shaft cylinder, and a second screw. The adjustment flap has four flaps. One end of the fixed shaft cylinder can be fixed to the vertical side wall of the fixed seat by suction. A "convex" shaped sealing cap is threaded to the other end of the fixed shaft cylinder. A second rotary motor is fixedly installed on the vertical side wall of the other side of the fixed seat. The second screw is installed on the output end of the second rotary motor. The other end of the second screw is unthreaded and rotates between the inner walls of the sealing cap. The second screw is arranged inside the fixed shaft cylinder along the length direction of the fixed shaft cylinder. Two connecting blocks are provided on the inner arc surface of each adjustment flap.

[0013] According to the above technical solution, the adjustment component also includes a movable shaft cylinder and adjustment arms. A limit hole is opened on the fixed shaft cylinder. The movable shaft cylinder is cylindrical. The screw rod 2 passes through the movable shaft cylinder and is engaged with it through threaded transmission. Four limit arms are provided on the circumferential surface of the movable shaft cylinder. The limit arms slide between the inner walls of the limit holes. A connecting block 2 is also provided on the end wall of the limit arm. Two adjustment arms are rotatably connected between the adjacent connecting block 1 and connecting block 2 through a shaft connection.

[0014] According to the above technical solution, a fixing hole is provided on the vertical side wall of the fixing seat, and a vertically arranged fixing shaft is fixed between the inner walls of the fixing hole. One end of the pressure plate has a "T" shaped structure and slides through the inner walls of the fixing hole. The fixing shaft passes through one end of the pressure plate and slides in contact with it. A spring is sleeved on the fixing shaft above the pressure plate.

[0015] According to the above technical solution, fixing blocks are fixed on the vertical sidewalls of the L-shaped bracket on both sides, and a connecting shaft is fixed between the two fixing blocks on the same side. Two "L"-shaped sliding parts are slidably arranged on the connecting shafts on both sides. Two springs are arranged on the connecting shafts. One end of the spring is connected and fixed to the fixing block, and the other end is connected and fixed to the surface of the sliding part in contact with it. The pressure roller is rotatably arranged between the two opposing sidewalls of the sliding parts in the horizontal direction through the shaft connection.

[0016] According to the above technical solution, two fixed posts are provided on the top wall of the fixed frame, and a screw is rotatably provided between the two fixed posts. A rotary motor connected to and driven by the screw is installed on the side wall of one of the fixed posts. The screw passes through the connecting frame and is engaged with it through threaded transmission. An external power supply is installed on one vertical side wall of the connecting frame. An electric heating coil is embedded in the inner wall of the through hole of the moving seat. The external power supply and the electric heating coil are connected by a wire.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] (1) By setting an elastically adjustable pressure plate above the adjustment component, and ensuring that the pressure plate is always under downward force, the pipe is always kept tightly wound during winding, thus avoiding the occurrence of loosening during the winding process.

[0019] (2) By setting up an L-bracket, a fixed block, a connecting shaft, a sliding part and a pressure roller on one side of the moving seat, the elastic adjustment of the upper and lower pressure rollers can be used to constrain the state of the pipeline passing through the L-bracket in advance when it passes through the moving seat, thereby avoiding the problem of local winding of the pipeline during the winding process. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of this utility model;

[0021] Figure 2 is a schematic diagram of the structure of the adjustment component of this utility model;

[0022] Figure 3 is a schematic diagram of the elastic adjustment of the pressure plate of this utility model;

[0023] Figure 4 is a structural schematic diagram of the bundle tube assembly of this utility model.

[0024] In the diagram: 1. Fixed base; 11. Fixed frame; 111. Operation panel; 112. Crossbeam; 113. Screw 1; 2. Adjustment assembly; 21. Adjustment flap; 211. Connecting block 1; 22. Fixed shaft cylinder; 23. Screw 2; 24. Moving shaft cylinder; 241. Limiting arm; 242. Connecting block 2; 25. Adjusting arm; 3. Pressure plate; 31. Fixed shaft; 4. L-bracket; 41. Fixed block; 411. Connecting shaft; 42. Sliding part; 421. Pressure roller; 5. Moving base; 51. Connecting frame; 511. External power supply. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4. The technical solution provided by this utility model is as follows:

[0027] An automatic winding device for the evaporator spiral coil of a clothes dryer includes a fixed base 1, an adjusting component 2, and a coil assembly. The fixed base 1 is arranged in an "L" shape. An "L" shaped fixing frame 11 is bolted to one side of the fixed base 1 between its side walls. A crossbeam 112 is also provided on the fixing frame 11 and is integrated therewith. One end of the crossbeam 112 is also fixed to the side wall of the fixed base 1. An operation panel 111 is fixedly installed on the fixing frame 11.

[0028] The adjusting component 2 is arranged along the vertical side wall perpendicular to the fixed base 1, and a pressure plate 3 is elastically arranged above the adjusting component 2 along the vertical side wall of the fixed base 1.

[0029] The tube assembly includes an L-bracket 4 and a movable seat 5. The movable seat 5 slides between the fixed frame 11 and the crossbeam 112, and the movable seat 5 is provided with a "J"-shaped connecting frame 51. The connecting frame 51 slides along the length of the fixed frame 11. A through hole is provided in the middle of the movable seat 5. The L-bracket 4 is located below the bottom wall of the crossbeam 112 and slides and adjusts along its length. The L-bracket 4 is provided with a tube hole. Two pressure rollers 421 are elastically provided on one side of the tube hole. The L-bracket 4 and the movable seat 5 are fixed together by a connecting screw.

[0030] It should be further explained that the winding state is adjusted by adjusting component 2. One end of the tube is manually passed through L bracket 4 and movable seat 5 in sequence and then fixed on adjusting component 2 (it can be fixed by gluing or manually winding it around once and then locking it; the method is not unique). Then, the entire adjusting component 2 is rotated to start winding the tube. The tube passes through the pressure roller 421 on L bracket 4 to adjust and correct its state. After being heated inside movable seat 5, it is easier to be wound onto adjusting component 2. After completion, the entire wound tube can be removed from adjusting component 2.

[0031] The adjustment assembly 2 includes an adjustment flap 21, a fixed shaft cylinder 22, a screw 23, a movable shaft cylinder 24, and an adjustment arm 25. The adjustment flap 21 has four flaps. One end of the fixed shaft cylinder 22 is connected to the vertical side wall of the fixed base 1. A bearing-shaped electromagnet (not shown in the figure) is fixedly embedded in the vertical side wall of the fixed base 1. One end of the fixed shaft cylinder 22 is rotatably disposed between the inner wall of the electromagnet with a "T"-shaped end design. The electromagnet is connected to the operation panel 111 by a wire for control. By controlling the activation of the electromagnet, it can generate a suction force. When there is a suction force, the fixed shaft cylinder 22 can be locked in place (that is, the adjustment flap is fixed before winding). The state of the fixed shaft cylinder 22 when it is adjusted (i.e., the state of the adjustment assembly 2 during the rotation of the winding pipe). A sealing cover with a "convex" structure is threaded to the other end of the fixed shaft cylinder 22. A rotary motor 2 is fixedly installed on the vertical side wall of the other side of the fixed seat 1. A screw 23 is installed on the output end of the rotary motor 2. The other end of the screw 23 is unthreaded and rotates between the inner walls of the sealing cover. The screw 23 is set inside the fixed shaft cylinder 22 along the length direction of the fixed shaft cylinder 22. Two connecting blocks 211 are set on the inner arc surface of each adjustment petal 21.

[0032] A limiting hole is provided on the fixed shaft cylinder 22. The movable shaft cylinder 24 is cylindrical. The screw 23 passes through the movable shaft cylinder 24 and is engaged with it through threaded transmission. Four limiting arms 241 are provided on the circumferential surface of the movable shaft cylinder 24. The limiting arms 241 slide between the inner walls of the limiting holes. A connecting block 242 is also provided on the end wall of the limiting arm 241. Two adjusting arms 25 are rotatably connected between the adjacent connecting block 211 and the connecting block 242 through a shaft connection.

[0033] It should be further explained that when adjusting the position of the adjusting valve 21, the electromagnet is activated, so that the end of the fixed shaft cylinder 22 connected to it is locked by the attraction force. At this time, the fixed shaft cylinder 22 is equivalent to being fixed on the fixed seat 1. Then, the second rotary motor is activated, which drives the second screw 23 to rotate, so that the moving shaft cylinder 24 moves and adjusts in a straight line under the action of the screw drive. As the moving shaft cylinder 24 moves, the adjusting arm 25 drives the adjusting valve 21 connected to it to move away from (or closer to) the fixed shaft cylinder 22. When the position is adjusted to a suitable position, the second rotary motor is stopped.

[0034] When the winding of the pipe begins, the electromagnet is turned off, so that the fixed shaft cylinder 22 can make rotational contact with the inner wall of the electromagnet. Then, the rotary motor is started again. Since the fixed shaft cylinder 22 is in a moving state, the entire adjustment component 2 can rotate synchronously with the rotation output of the screw 23, thereby winding the pipe.

[0035] A fixing hole is provided on the vertical side wall of the fixing seat 1. A vertically arranged fixing shaft 31 is fixed between the inner walls of the fixing hole. One end of the pressure plate 3 has a "T" shape and slides through the inner walls of the fixing hole. The fixing shaft 31 passes through one end of the pressure plate 3 and slides in contact with it. A spring is sleeved on the fixing shaft 31 above the pressure plate 3.

[0036] It should be further explained that during the winding process, since the pressure plate 3 is always subjected to a downward force, as the thickness of the winding increases, the pressure plate 3 will always press on the outermost layer of the pipe to maintain the tightness of the pipe.

[0037] Fixing blocks 41 are fixedly installed on the vertical sidewalls of the L-bracket 4 on both sides. A connecting shaft 411 is fixedly connected between the two fixing blocks 41 on the same side. Two “L”-shaped sliding parts 42 are slidably arranged on the connecting shaft 411 on both sides. Two springs are arranged on the connecting shaft 411. One end of the spring is connected and fixed to the fixing block 41, and the other end is connected and fixed to the surface of the sliding part 42 in contact with it. The pressure roller 421 is rotatably arranged between the two opposing sidewalls of the sliding parts 42 in the horizontal direction through the shaft connection.

[0038] Two fixing posts are fixedly installed on the top wall of the fixing frame 11. A screw 113 is rotatably arranged between the two fixing posts. A rotary motor connected to and driven by the screw 113 is installed on the side wall of one of the fixing posts. The screw 113 passes through the connecting frame 51 and is engaged with it through threaded transmission. An external power supply 511 is installed on one vertical side wall of the connecting frame 51. An electric heating coil (not shown in the figure) is embedded in the inner wall of the through hole of the moving seat 5. The external power supply 511 and the electric heating coil are connected by a wire.

[0039] Among them, a strip-shaped vertical hole is opened along the length direction of the crossbeam 112. The connecting screw passes through the vertical hole and slides synchronously with the movement of the L bracket 4 and the movable seat 5 along the inner wall of the vertical hole. The connecting screw has a "T" shaped structure and a thread is opened on its top end. The threaded part is fixed to the bottom wall of the movable seat 5 by thread. The bottom convex end (i.e. the "T" shaped end) of the connecting screw abuts against the bottom wall of the L bracket 4.

[0040] It should be further explained that by passing one end of the tube through the bundle hole, the pressure rollers 421 on both sides are manually moved away during the passage. After the tube passes through, the pressure rollers 421 are released and clamped in the middle. This allows the tube to be straightened by the two pressure rollers 421 as it moves during the subsequent winding process, thus avoiding local winding. At the same time, during the winding process, the external power supply 511 is activated to put the heating coil into working state and heat the tube passing through the moving seat 5, thereby softening the tube and making it easier to wind.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic winding device for the spiral coil of an evaporator in a clothes dryer, comprising a fixed base (1), an adjusting assembly (2), and a coil assembly, characterized in that, The fixed base (1) is arranged in an "L" shape. An "L" shaped fixing frame (11) is installed between the side walls of the fixed base (1) on one side. A crossbeam (112) is also provided on the fixing frame (11) and is integrated with it. An operation panel (111) is installed on the fixing frame (11). The adjustment component (2) is arranged along the vertical side wall perpendicular to the fixed base (1). A pressure plate (3) is elastically arranged above the adjustment component (2) along the vertical side wall of the fixed base (1). The bundle tube assembly includes an L-shaped bracket (4) and a movable base (5). The movable base (5) The movable seat (5) slides between the fixed frame (11) and the crossbeam (112), and the movable seat (5) is provided with a connecting frame (51) of "J" shape. The connecting frame (51) slides along the length direction of the fixed frame (11). A through hole is opened in the middle of the movable seat (5). The L bracket (4) is set below the bottom wall of the crossbeam (112) and slides and adjusts along its length direction. A bundle tube hole is opened on the L bracket (4). Two pressure rollers (421) are elastically arranged on one side of the bundle tube hole. The L bracket (4) and the movable seat (5) are fixed together by connecting screws.

2. The automatic winding device for the evaporator spiral coil of a clothes dryer according to claim 1, characterized in that, The adjustment assembly (2) includes an adjustment flap (21), a fixed shaft cylinder (22), and a screw (23). The adjustment flap (21) has four flaps. One end of the fixed shaft cylinder (22) can be fixed to the vertical side wall of the fixed seat (1) by suction. A "convex" shaped sealing cover is threaded onto the other end of the fixed shaft cylinder (22). A rotary motor is fixedly installed on the vertical side wall of the other side of the fixed seat (1). The screw (23) is installed on the output end of the rotary motor. The other end of the screw (23) is unthreaded and rotates between the inner walls of the sealing cover. The screw (23) is arranged inside the fixed shaft cylinder (22) along the length direction of the fixed shaft cylinder (22). Two connecting blocks (211) are provided on the inner arc surface of each adjustment flap (21).

3. The automatic winding device for the evaporator spiral coil of a clothes dryer according to claim 2, characterized in that, The adjustment assembly (2) also includes a movable shaft cylinder (24) and an adjustment arm (25). A limit hole is opened on the fixed shaft cylinder (22). The movable shaft cylinder (24) is cylindrical. The screw rod (23) passes through the movable shaft cylinder (24) and is engaged with it through threaded transmission. Four limit arms (241) are provided on the circumferential surface of the movable shaft cylinder (24). The limit arms (241) slide between the inner walls of the limit holes. A connecting block (242) is also provided on the end wall of the limit arm (241). Two adjustment arms (25) are rotatably connected between the adjacent connecting block (211) and the connecting block (242) through a shaft connection.

4. The automatic winding device for the evaporator spiral coil of a clothes dryer according to claim 3, characterized in that, The fixing seat (1) has a fixing hole on its vertical side wall. A vertically arranged fixing shaft (31) is fixed between the inner walls of the fixing hole. One end of the pressure plate (3) has a "T" shaped structure and slides through the inner walls of the fixing hole. The fixing shaft (31) passes through one end of the pressure plate (3) and slides in contact with it. A spring is sleeved on the fixing shaft (31) above the pressure plate (3).

5. The automatic winding device for the evaporator spiral coil of a clothes dryer according to claim 4, characterized in that, The L-shaped bracket (4) has fixed blocks (41) on both sides of the vertical sidewalls facing each other. A connecting shaft (411) is fixed between the two fixed blocks (41) on the same side. Two "L"-shaped sliding parts (42) are slidably arranged on the connecting shaft (411) on both sides. Two springs are arranged on the connecting shaft (411). One end of the spring is connected and fixed to the fixed block (41), and the other end is connected and fixed to the surface of the sliding part (42) in contact with it. The pressure roller (421) is rotatably arranged between the two sliding parts (42) facing each other in the horizontal direction through the shaft connection.

6. The automatic winding device for the evaporator spiral coil of a clothes dryer according to claim 5, characterized in that, Two fixed posts are provided on the top wall of the fixed frame (11), and a screw rod (113) is rotatably provided between the two fixed posts. A rotary motor connected to and driven by the screw rod (113) is installed on the side wall of one of the fixed posts. The screw rod (113) passes through the connecting frame (51) and is engaged with it through threaded transmission. An external power supply (511) is installed on the vertical side wall of one side of the connecting frame (51). An electric heating coil is embedded in the inner wall of the through hole of the moving seat (5). The external power supply (511) and the electric heating coil are connected by a wire.

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