Feeding device of clothes dryer evaporator assembly and working method of feeding device

Abstract

The invention relates to the technical field of evaporators, in particular to a clothes dryer evaporator assembly feeding device and a working method thereof.The clothes dryer evaporator assembly feeding device comprises a feeding mechanism and an evaporator body, the feeding mechanism comprises a T-shaped plate, three positioning rods penetrate through one side of the T-shaped plate and are in sliding fit with the T-shaped plate, and movable plates are fixed to the penetrating ends of the positioning rods; a pair of first guide rods is fixed to one end of the T-shaped plate, the first guide rods penetrate through the movable plate and are in sliding fit with the movable plate, and the first guide rods are sleeved with first springs; a plurality of second guide rods are fixed to the upper end of the T-shaped plate, a driving plate is arranged on the upper side of the T-shaped plate, a plurality of second springs are arranged between the driving plate and the T-shaped plate, a trapezoidal wedge block is fixed to the lower end of the driving plate, the trapezoidal wedge block penetrates through the upper end of the T-shaped plate and is in sliding fit with the T-shaped plate, and a slope opening is formed in the upper end of the movable plate and matched with the trapezoidal wedge block. According to the feeding device, the rapid feeding function is conveniently and efficiently achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of evaporators, and in particular to a feeding device for a dryer evaporator assembly and its working method. Background Art

[0002] As the core component of the heat pump cycle system, the evaporator in a dryer mainly functions to absorb moisture in the humid and hot air. The refrigerant evaporates and absorbs heat, the air is cooled below the dew point, and the moisture condenses and is discharged. Cooperating with the condenser, rapid drying of clothes is achieved.

[0003] In the production process of the evaporator, first, the aluminum material is punched and perforated by a punching machine to form fins. Subsequently, the fins are arranged on the mold in sequence, a long U-shaped tube is passed through the through holes of the fins, and the fins are fixed on the long U-shaped tube by expanding the tube to form a semi-finished product, as shown in Figure 1 the evaporator body shown in. Then, the interface of the long U-shaped tube is reamed to facilitate the installation of the short U-shaped tube. Next, it is necessary for workers to place several short U-shaped tubes on the interfaces in sequence. Finally, through welding, the docking of the heat exchange tubes is completed.

[0004] Some enterprises are equipped with manipulators to achieve automatic installation and feeding of short U-shaped tubes. Although they have the advantage of automation efficiency, they still face the following technical and process limitations in practical applications:

[0005] 1. Clamping stability and deformation risk. Most short U-shaped tubes are thin-walled copper tubes. Improper design of the manipulator jaws (such as rigid contact) may cause indentation or out-of-tolerance ovality of the tube body, directly affecting the subsequent welding tightness.

[0006] 2. The sudden change in curvature between the bent section and the straight section of the U-shaped tube results in uneven force application by conventional parallel jaws, and it is easy to slip or deflect during clamping.

[0007] Due to the above process problems, most current heat exchanger manufacturers still mainly rely on manual placement of short U-shaped tubes for installation and feeding.

[0008] Therefore, it is necessary to provide a feeding device for a dryer evaporator assembly and its working method, which can stably clamp and quickly feed the U-shaped tube. Summary of the Invention

[0009] The purpose of the present invention is to provide a feeding device for a dryer evaporator assembly and its working method to solve the problems raised in the above background art.

[0010] To solve the above technical problems, the present invention provides the following technical solution: A feeding device for a dryer evaporator assembly and its working method, comprising a feeding mechanism and an evaporator body,

[0011] The feeding mechanism includes a T-shaped plate. Three positioning rods penetrate and are slidably fitted on one side of the T-shaped plate. An end plate is fixed to the penetrating end of the positioning rod. A pair of first guide rods are fixed to one end of the T-shaped plate. The first guide rods penetrate through the end plate and are slidably fitted with it. A first spring is sleeved on the outer side of the first guide rods;

[0012] A number of second guide rods are fixed to the upper end of the T-shaped plate. A driving plate is arranged on the upper side of the T-shaped plate, and a number of second springs are arranged between them. A trapezoidal wedge is fixed to the lower end of the driving plate. The trapezoidal wedge penetrates through the upper end of the T-shaped plate and is slidably fitted with it. A ramp opening is formed at the upper end of the end plate, and the ramp opening is adapted to the trapezoidal wedge.

[0013] In one embodiment, a transportation assembly is arranged below the feeding mechanism. The transportation assembly includes a conveyor belt and a pair of guiding frames.

[0014] In one embodiment, a linear guide rail frame is arranged above the feeding mechanism. A displaceable translation plate is arranged on the linear guide rail frame. A rotating disk is rotatably connected to the middle side of the translation plate. A cylinder is arranged on the upper side of the rotating disk. A driving rod is arranged at the lower end of the cylinder. The driving rod is connected to the driving plate.

[0015] In one embodiment, the second guide rods penetrate through the rotating disk and are slidably fitted with it. A stop piece is fixed to the upper end of the second guide rods. The second guide rods penetrate through and are fixedly connected with a retaining ring.

[0016] In one embodiment, two pairs of fixing rods are fixedly connected to one side of the end plate. A number of adapting holes penetrate through the lower end of the T-shaped plate. The fixing rods pass through the adapting holes. A square groove is formed at the head end of the fixing rods. An arc-shaped clamping piece is arranged in the square groove. One end of the arc-shaped clamping piece is fixedly connected to a third guide rod. The third guide rod penetrates through the head end of the fixing rod and is slidably fitted with it. A third spring is arranged on the outer side of the third guide rod.

[0017] In one embodiment, a pair of clamping columns are fixedly connected to the upper end of the T-shaped plate. Chute grooves are formed on both sides of the clamping columns. A limiting block is slidably fitted in the chute grooves. An inclined surface is formed at one end of the limiting block. A fourth spring is arranged in the chute grooves and is connected to the limiting block. The distance between the lower end surface of the limiting block and the upper end surface of the T-shaped plate is greater than the thickness of the driving plate. A pair of square holes penetrate through the driving plate. The clamping columns penetrate through the square holes and are slidably fitted with them. Chamfered edges are arranged at both ends of the lower side of the square holes.

[0018] In one embodiment, a cylindrical groove is formed inside the engaging post. An active post is slidably fitted inside the cylindrical groove. Arc-shaped blocks are fixedly connected to both ends of the active post. An inclined surface is formed at the lower end of the arc-shaped block. A vertical groove is formed by extending the upper side of the sliding groove. The arc-shaped block slides along the vertical groove. A trapezoidal groove is formed inside the limiting block and is adapted to the arc-shaped block. In the initial state, the active post extends above the engaging post.

[0019] In one embodiment, a motor is fixedly connected to the upper end of the translation plate. A gear is arranged at the driving end of the motor. An annular tooth groove is formed on the outer side of the rotating disk. The gear meshes with the annular tooth groove.

[0020] In one embodiment, a vibrating feeding tray is arranged below the linear guide rail frame. A feeding frame is arranged at the discharge port of the vibrating feeding tray.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, the U-shaped pipe is clamped on one side of the T-shaped plate through three positioning rods to form a three-point fixation, greatly reducing the contact area between the clamping tooling and the U-shaped pipe, avoiding indentation and deformation caused by clamping, and ensuring the surface quality of the U-shaped pipe.

[0022] By driving the plate to move downward, in the initial state, the elastic force of the second spring causes the T-shaped plate and the driving plate to descend while maintaining a distance until the U-shaped pipe is clamped into the interface on the evaporator body; the driving plate continues to descend relative to the T-shaped plate, driving the trapezoidal wedge block to descend. The trapezoidal wedge block moves along the inclined surface of the ramp opening, pushing the movable plate away from the T-shaped plate, causing the positioning rod to be withdrawn from one side of the U-shaped pipe and releasing the limitation on the U-shaped pipe, thus completing the placement of the current U-shaped pipe; then the feeding mechanism resets and repeats the above steps for continuous feeding and installation of the U-shaped pipe until all the U-shaped pipes of the evaporator body are installed and fed. This feeding mechanism has a simple structure and strong practicability. While placing the U-shaped pipe, it automatically releases its limitation, simplifies the process and its structure, and replaces manual labor to achieve the function of rapid feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following, by describing in detail the specific embodiments of the present application in conjunction with the drawings, will make the technical solutions and other beneficial effects of the present application obvious.

[0024] In the drawings:

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the three-dimensional schematic diagram of the feeding mechanism of the present invention;

[0027] Figure 3 is the cross-sectional schematic diagram of the feeding mechanism of the present invention;

[0028] Figure 4 is a three-dimensional schematic diagram of the positioning rod of the present invention;

[0029] Figure 5 is Figure 3 a partially enlarged schematic diagram of area A of

[0030] Figure 6 is a cross-sectional schematic diagram of the engaging column of the present invention;

[0031] Figure 7 is a partial cross-sectional schematic diagram of the engaging column of the present invention;

[0032] Figure 8 is a three-dimensional schematic diagram of the feeding rack of the present invention;

[0033] In the figure: 1. Loading mechanism; 101. T-shaped plate; 102. Positioning rod; 103. Movable plate; 104. Guide rod 1; 105. Guide rod 2; 106. Driving plate; 107. Trapezoidal wedge; 108. Retaining ring; 109. Fixed rod; 110. Arc-shaped clamping member; 111. Guide rod 3;

[0034] 2. Engaging column; 201. Limiting block; 202. Movable column; 203. Arc-shaped block;

[0035] 3. Conveyor belt; 301. Guide frame;

[0036] 4. Linear guide rail frame; 401. Translation plate; 402. Rotary disk; 404. Driving rod;

[0037] 5. Evaporator body;

[0038] 6. U-shaped tube;

[0039] 7. Vibrating feeding tray; 701. Feeding rack;

[0040] 8. Cylinder;

[0041] 9. Motor; 901. Gear. Detailed implementation manners

[0042] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0043] Please refer toFigure 1-8 , the present invention provides a technical solution: a feeding device for a dryer evaporator assembly and its working method, which includes a feeding mechanism 1 and an evaporator body 5.

[0044] The feeding mechanism 1 includes a T-shaped plate 101. Three positioning rods 102 penetrate and are slidably fitted on one side of the T-shaped plate 101. The penetrating ends of the positioning rods 102 are fixed with a movable plate 103. A pair of first guide rods 104 are fixed at one end of the T-shaped plate 101. The first guide rods 104 penetrate through the movable plate 103 and are slidably fitted with it. A first spring is sleeved on the outer side of the first guide rods 104.

[0045] Several second guide rods 105 are fixed at the upper end of the T-shaped plate 101. A driving plate 106 is arranged on the upper side of the T-shaped plate 101 and several second springs are arranged between them. A trapezoidal wedge 107 is fixed at the lower end of the driving plate 106. The trapezoidal wedge 107 penetrates through the upper end of the T-shaped plate 101 and is slidably fitted with it. A ramp opening is formed at the upper end of the movable plate 103, and the ramp opening is adapted to the trapezoidal wedge 107.

[0046] The U-shaped tube 6 is clamped on one side of the T-shaped plate 101 through the three positioning rods 102 to form a three-point fixation, greatly reducing the contact area between the clamping tooling and the U-shaped tube 6, avoiding indentation and deformation caused by clamping, and ensuring the surface quality of the U-shaped tube 6.

[0047] By the downward displacement of the driving plate 106, in the initial state, the elastic force of the second spring causes the T-shaped plate 101 and the driving plate 106 to descend while maintaining a distance until the U-shaped tube 6 is clamped into the interface on the evaporator body 5. Then the T-shaped plate 101 maintains its current height position, while the driving plate 106 continues to descend relative to the T-shaped plate 101, driving the trapezoidal wedge 107 to descend. The trapezoidal wedge 107 pushes along the slope of the ramp opening, pushing the movable plate 103 to separate from the T-shaped plate 101, so that the positioning rods 102 are withdrawn from one side of the U-shaped tube 6, releasing the limit on the U-shaped tube 6, and thus completing the placement of the current U-shaped tube 6. Then the feeding mechanism 1 resets and repeats the above steps for continuous feeding and installation of the U-shaped tube 6 until all the U-shaped tubes 6 of the evaporator body 5 are installed and fed. The feeding mechanism 1 has a simple structure and strong practicability. While placing the U-shaped tube 6, it automatically releases its restriction, simplifies the process and its structure, and replaces manual labor to achieve the function of rapid feeding.

[0048] A transportation component is arranged on the lower side of the feeding mechanism 1. The transportation component includes a conveyor belt 3 and a pair of guide frames 301.

[0049] A linear guide rail frame 4 is arranged on the upper side of the feeding mechanism 1. A displaceable translation plate 401 is arranged on the linear guide rail frame 4. A rotating disk 402 is rotatably connected to the middle side of the translation plate 401. A cylinder 8 is arranged on the upper side of the rotating disk 402. A driving rod 404 is arranged at the lower end of the cylinder 8. The driving rod 404 is connected to the driving plate 106.

[0050] A motor 9 is fixedly connected to the upper end of the translation plate 401. A gear 901 is arranged at the driving end of the motor 9. An annular tooth groove is formed on the outer side of the rotating disk 402. The gear 901 meshes with the annular tooth groove.

[0051] A vibrating feeding tray 7 is arranged on the lower side of the linear guide rail frame 4. A feeding rack 701 is arranged at the discharge port of the vibrating feeding tray 7.

[0052] Preferably, by arranging the vibrating feeding tray 7 to automatically orient and feed a plurality of U-shaped tubes 6, the plurality of U-shaped tubes 6 are neatly arranged and conveyed onto the feeding rack 701, thus facilitating the feeding mechanism 1 to pick up the materials.

[0053] Preferably, by arranging the motor 9 to drive the gear 901, the rotating disk 402 is driven to rotate through meshing connection, and then the feeding mechanism 1 can be driven to rotate. Moreover, the axis of the rotating disk 402 coincides with the center of the clamped U-shaped tube 6, so that the rotating disk 402 can drive the U-shaped tube 6 to rotate, thereby adjusting its own angle and facilitating the feeding of interfaces with different angles.

[0054] Preferably, the evaporator body 5 of the U-shaped tube 6 to be installed is transported by the conveyor belt 3. The guiding frame 301 guides the transportation of the evaporator body 5, so that the evaporator body 5 moves to the lower side of the feeding mechanism 1. The feeding mechanism 1 can sequentially place the U-shaped tubes 6 on the first row of interfaces. Specifically, the feeding mechanism 1 is driven by the translation plate 401 to displace along the linear guide rail frame 4, so that the feeding mechanism 1 first docks with the feeding rack 701 and picks up the U-shaped tube 6. The three positioning rods 102 clamp the U-shaped tube 6. Then, the feeding mechanism 1 drives the U-shaped tube 6 to displace and detects the installation interface position through a equipped vision detection mechanism (not shown in the figure). When the translation plate 401 displaces to the first detected interface, the feeding mechanism 1 can be driven to rotate integrally by the rotating disk 402 to adjust the interface angle of the U-shaped tube 6 until the interface of the U-shaped tube 6 is aligned with the installation hole position on the evaporator body 5. Then, the cylinder 8 and the driving rod 404 are used to push the driving plate 106 downward, and the U-shaped tube 6 can be installed into the detected interface hole position. And so on, until the feeding of the first row of interfaces is completed. Then the conveyor belt 3 drives the evaporator body 5 to displace, so as to feed and install the second row of interfaces.

[0055] Preferably, a linear driving mechanism can be arranged to drive the translation plate 401. The linear driving mechanism includes but is not limited to a gear and rack mechanism or a lead screw and nut mechanism, etc.

[0056] The second guide rod 105 passes through the rotary disc 402 and is in sliding fit with it. A stop piece is fixedly connected to the upper end of the second guide rod 105, and a retaining ring 108 is fixedly connected through and to the second guide rod 105.

[0057] Preferably, the second guide rod 105 is provided to guide the T-shaped plate 101 and the driving plate 106, and a stop piece is provided to control the descending height of the T-shaped plate 101. When the driving rod 404 drives the driving plate 106 and the T-shaped plate 101 to descend, the U-shaped tube 6 is snapped into the mounting hole position. At this time, the stop piece contacts the upper end of the rotary disc 402, thereby restricting the lowest position of the T-shaped plate 101. At this time, the T-shaped plate 101 cannot continue to descend, while the driving plate 106 can continue to descend to release the restriction on the U-shaped tube 6;

[0058] Preferably, the retaining ring 108 is provided to limit the distance between the driving plate 106 and the T-shaped plate 101, so as to facilitate the precise control of the height position of the T-shaped plate 101 through the driving plate 106 and improve the position accuracy of docking and material taking.

[0059] Two pairs of fixing rods 109 are fixedly connected to one side of the movable plate 103. A plurality of adapting holes are penetrated through the lower end of the T-shaped plate 101. The fixing rods 109 pass through the adapting holes. Square grooves are formed at the head ends of the fixing rods 109, and arc-shaped clamping members 110 are arranged in the square grooves. One end of the arc-shaped clamping member 110 is fixedly connected to a third guide rod 111. The third guide rod 111 passes through the head end of the fixing rod 109 and is in sliding fit with it. A third spring is arranged outside the third guide rod 111.

[0060] Preferably, in order to further improve the stability of clamping and feeding of the U-shaped tube 6, two pairs of fixing rods 109 are provided. Specifically, the distance between a pair of fixing rods 109 is equal to the outer diameter dimension of the straight tube of the U-shaped tube 6. When the U-shaped tube 6 is docked with the feeding mechanism 1, the three positioning rods 102 position the overall position of the U-shaped tube 6, and the straight tube part of the U-shaped tube 6 is correspondingly snapped into the fixing rods 109. The arc-shaped clamping member 110 is provided to limit and fix the straight tube, thereby improving the clamping stability of the U-shaped tube 6.

[0061] A pair of engaging columns 2 are fixedly connected to the upper end of the T-shaped plate 101. Chute grooves are formed on both sides of the engaging columns 2. Limit blocks 201 are in sliding fit in the chute grooves. A slope is formed at one end of the limit block 201. A fourth spring is arranged in the chute groove and is connected to the limit block 201. The distance between the lower end surface of the limit block 201 and the upper end surface of the T-shaped plate 101 is greater than the thickness of the driving plate 106. A pair of square holes are penetrated through the driving plate 106. The engaging columns 2 pass through the square holes and are in sliding fit with them. Chamfered edges are provided at both lower ends of the square holes.

[0062] Preferably, when the feeding of the U-shaped tube 6 is completed, the driving plate 106 descends relative to the T-shaped plate 101 to release the limit on the U-shaped tube 6. Then, the air cylinder 8 can drive the driving plate 106 to rise and reset through the driving rod 404. To prevent the positioning rod 102 from resetting at this time, which may lead to re-limiting the U-shaped tube 6, a clamping column 2 is provided. Specifically, slidable limit blocks 201 are arranged at both ends of the clamping column 2. The driving plate 106 can be accommodated between the limit blocks 201 and the T-shaped plate 101. When the driving plate 106 descends relative to the clamping column 2, the chamfer of the square hole is adapted to the limit block 201, restricting the pair of limit blocks 201 from retracting into the clamping column 2 until the driving plate 106 moves to the lower end of the limit block 201. The limit block 201 pops out under the reset action of the fourth spring and is restricted at the upper end of the driving plate 106, so that the positioning rod 102 cannot be reset. At this time, the driving rod 404 drives the driving plate 106 to rise, and the T-shaped plate 101 is driven to rise and reset synchronously through the limit block 201.

[0063] A cylindrical groove is formed inside the clamping column 2. An active column 202 is slidably fitted in the cylindrical groove. Arc-shaped blocks 203 are fixedly connected to both ends of the active column 202. An inclined surface is formed at the lower end of the arc-shaped block 203. A vertical groove extends from the upper side of the chute. The arc-shaped block 203 slides along the vertical groove. A trapezoidal groove is arranged inside the limit block 201 and is adapted to the arc-shaped block 203. In the initial state, the active column 202 extends to the upper side of the clamping column 2.

[0064] Preferably, when it is necessary to release the limit of the limit block 201 on the driving plate 106, an active column 202 is provided and extends to the upper side of the clamping column 2. When the driving plate 106 drives the T-shaped plate 101 to rise and reset synchronously through the limit block 201, the upper end of the active column 202 contacts the bottom of the rotating disk 402, causing the active column 202 to be pressed into the clamping column 2. The inclined surfaces of the arc-shaped blocks 203 at both ends of the active column 202 slide with the trapezoidal groove, causing the arc-shaped block 203 to push the limit block 201 to retract into the clamping column 2 along the inclined surface. In this way, the limit block 201 can be retracted within the range of the square hole, releasing the limit on the driving plate 106. Under the reset operation of the second spring, the T-shaped plate 101 descends and resets, causing the positioning rod 102 to extend again to position the next U-shaped tube 6. That is to say, there is no need to adopt an additional driving component to control the displacement of the movable plate 103 and the positioning rod 102, and there is no need to install an additional driving component on the T-shaped plate 101, avoiding additional load and saving installation space and cost.

[0065] In the description of the present application, it should be noted that unless otherwise clearly specified or limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that allows for mutual communication; it may be a direct connection, a connection within two components, or an interaction relationship between two components. For those of ordinary skill in the art, the meanings of the above terms in the present application can be understood according to specific circumstances.

[0066] The above has introduced in detail a feeding device for a dryer evaporator assembly and its working method provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A feeding device for an evaporator assembly of a clothes dryer, comprising a feeding mechanism (1) and an evaporator body (5), characterized in that: The feeding mechanism (1) includes a T-shaped plate (101). Three positioning rods (102) penetrate through and are slidably fitted on one side of the T-shaped plate (101). An activity plate (103) is fixed to the penetrating end of the positioning rod (102). A pair of first guide rods (104) are fixed to one end of the T-shaped plate (101). The first guide rods (104) penetrate through the activity plate (103) and are slidably fitted with it. A first spring is sleeved on the outer side of the first guide rod (104); A number of second guide rods (105) are fixed to the upper end of the T-shaped plate (101). A driving plate (106) is arranged on the upper side of the T-shaped plate (101), and a number of second springs are arranged between them. A trapezoidal wedge block (107) is fixed to the lower end of the driving plate (106). The trapezoidal wedge block (107) penetrates through the upper end of the T-shaped plate (101) and is slidably fitted with it. A ramp opening is formed at the upper end of the activity plate (103), and the ramp opening is adapted to the trapezoidal wedge block (107).

2. The feeding device for the evaporator assembly of a clothes dryer according to claim 1, wherein: A transportation component is arranged on the lower side of the feeding mechanism (1). The transportation component includes a conveyor belt (3) and a pair of guide frames (301).

3. The feeding device of the dryer evaporator assembly according to claim 1, characterized in that: A linear guide rail frame (4) is arranged on the upper side of the feeding mechanism (1). A displaceable translation plate (401) is arranged on the linear guide rail frame (4). A rotating disk (402) is rotatably connected to the middle side of the translation plate (401). A cylinder (8) is arranged on the upper side of the rotating disk (402). A driving rod (404) is arranged at the lower end of the cylinder (8). The driving rod (404) is connected to the driving plate (106).

4. The feeding device of the dryer evaporator assembly according to claim 3, characterized in that: The second guide rods (105) penetrate through the rotating disk (402) and are slidably fitted with it. A retaining piece is fixed to the upper end of the second guide rod (105). A retaining ring (108) is penetrated through and fixedly connected to the second guide rod (105).

5. The feeding device of the dryer evaporator assembly according to claim 1, characterized in that: Two pairs of fixing rods (109) are fixedly connected to one side of the activity plate (103). A number of adaptation holes penetrate through the lower end of the T-shaped plate (101). The fixing rods (109) pass through the adaptation holes. A square groove is formed at the head end of the fixing rod (109). An arc-shaped clamping piece (110) is arranged in the square groove. One end of the arc-shaped clamping piece (110) is fixedly connected to a third guide rod (111). The third guide rod (111) penetrates through the head end of the fixing rod (109) and is slidably fitted with it. A third spring is arranged on the outer side of the third guide rod (111).

6. The feeding device for the dryer evaporator assembly according to claim 3, characterized in that: A pair of clamping columns (2) are fixedly connected to the upper end of the T-shaped plate (101). Chute grooves are formed on both sides of the clamping column (2). A limiting block (201) is slidably fitted in the chute grooves. An inclined surface is formed at one end of the limiting block (201). A fourth spring is arranged in the chute grooves and is connected to the limiting block (201). The distance between the lower end surface of the limiting block (201) and the upper end surface of the T-shaped plate (101) is greater than the thickness of the driving plate (106). A pair of square holes are formed through the driving plate (106). The clamping column (2) penetrates through the square holes and is slidably fitted with them. Oblique chamfers are arranged at both ends of the lower side of the square holes.

7. The feeding device for the evaporator assembly of a clothes dryer according to claim 6, characterized in that: An inner side of the engaging post (2) is provided with a cylindrical groove, and a movable post (202) is slidably fitted in the cylindrical groove. Both ends of the movable post (202) are fixedly connected with arc-shaped blocks (203). An inclined surface is provided at a lower end of the arc-shaped block (203). A vertical groove is extendedly provided above the sliding groove. The arc-shaped block (203) slides along the vertical groove. A trapezoidal groove is provided inside the limiting block (201), and the trapezoidal groove is adapted to the arc-shaped block (203). In an initial state, the movable post (202) extends above the engaging post (2).

8. The feeding device of the dryer evaporator assembly according to claim 3, characterized in that: A motor (9) is fixedly connected to an upper end of the translation plate (401). A gear (901) is provided at a driving end of the motor (9). An annular tooth groove is provided outside the rotating disk (402), and the gear (901) meshes with the annular tooth groove.

9. The feeding device for the dryer evaporator assembly according to claim 3, characterized in that: A vibrating loading tray (7) is provided below the linear guide rail frame (4), and a feeding frame (701) is provided at a discharge port of the vibrating loading tray (7).

10. The working method of a feeding device for a dryer evaporator assembly according to claim 3, characterized in that It includes the following steps: S1. The evaporator body (5) of the U-shaped tube (6) to be installed is transported by a conveyor belt (3), and the guide frame (301) guides the transportation of the evaporator body (5). S2. The U-shaped tube (6) is clamped on one side of the T-shaped plate (101) by three positioning rods (102). Then, the feeding mechanism (1) is driven by the translation plate (401) to displace along the linear guide rail frame (4), and the feeding mechanism (1) is driven to rotate integrally by the rotating disk (402) to adjust the interface position and angle of the U-shaped tube (6). S3. When the interface of the U-shaped tube (6) is adjusted to be aligned with the mounting hole position on the evaporator body (5), the cylinder (8) and the driving rod (404) are used to push the driving plate (106) downward. Due to the elastic force of the second spring, the T-shaped plate (101) and the driving plate (106) keep a distance and descend until the U-shaped tube (6) is clamped onto the evaporator body (5). S4. The driving plate (106) continues to descend relative to the T-shaped plate (101), driving the trapezoidal wedge block (107) to descend. The trapezoidal wedge block (107) pushes the movable plate (103) to separate from the T-shaped plate (101) along the inclined surface of the ramp opening, so that the positioning rod (102) releases the limitation on the U-shaped tube (6). S5. Then, the feeding mechanism (1) resets, and steps S2 to S4 are repeated until the installation and feeding work of all U-shaped tubes (6) of the evaporator body (5) is completed.

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