Automatic punch forming equipment for washing machine evaporator fins

Abstract

The utility model relates to the technical field of production of washing machine evaporators, in particular to automatic punch forming equipment for washing machine evaporator fins, which overcomes the defects in the prior art and comprises a base, a top plate, an upper die and a lower die, a PLC (programmable logic controller) is mounted on the base, and the lower die is fixedly clamped on the top surface of the base. The top plate is arranged above the base, four supporting columns and two guide columns are connected between the top plate and the base, a lifting table is slidably arranged between the guide columns on the two sides through a lifting motor, the upper die is installed on the bottom wall of the lifting table, a collecting groove is formed in the base in a penetrating mode, and the lower die is located above an inlet of the collecting groove. Two scraping seats which move relatively are arranged between the inner walls of an inlet of the collecting groove in a sliding mode, the scraping seats make sliding contact with the lower surface of the lower die, a draught fan which moves in the vertical direction is arranged on the side wall of the base, and the draught fan is connected with the scraping seats through air pipes. Compared with the prior art, the burr processing device can effectively process and collect burrs of formed products.

Description

Technical Field

[0001] This utility model relates to the field of washing machine evaporator production technology, specifically to an automatic stamping and forming equipment for washing machine evaporator fins. Background Technology

[0002] The evaporator fins of a washing machine are an important heat exchange component in the washing machine drying system, mainly used for heat exchange and moisture evaporation of humid air during the drying process. The evaporator can increase the heat exchange area and improve thermal efficiency through the fins. Humid air can also cause moisture to condense and be discharged when passing through the fins. In addition, some heat can be recovered and reused through the fins, improving energy efficiency.

[0003] Chinese utility model patent CN214022927U discloses a stamping device for forming evaporator fins. This stamping device relies on electromagnets to adsorb waste debris, but it is only suitable for ferromagnetic materials (such as steel scrap). Evaporator fins are mostly made of aluminum, and electromagnets are ineffective at adsorbing non-magnetic metal waste debris such as aluminum and copper. Moreover, even if the electromagnet adsorbs the waste debris, it still sticks to the electromagnet and requires subsequent cleaning.

[0004] Therefore, we propose an automatic stamping and forming equipment for washing machine evaporator fins to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an automatic stamping and forming equipment for evaporator fins of a washing machine, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic stamping and forming equipment for evaporator fins of a washing machine includes a base, a top plate, an upper mold and a lower mold. A PLC controller is installed on the base, and the lower mold is fixedly clamped on the top surface of the base. The top plate is located above the base and is connected by four support columns and two guide columns. A lifting platform is slidably arranged between the guide columns on both sides through a lifting motor. The upper mold is installed on the bottom wall of the lifting platform.

[0008] The base has a through-hole collection groove, the lower mold is located above the inlet of the collection groove, and two scraper seats that move relative to each other are slidably arranged between the inner walls of the inlet of the collection groove. The scraper seats slide in contact with the lower surface of the lower mold, and a fan that moves vertically is provided on the side wall of the base. The fan and the scraper seats are connected by a duct.

[0009] According to the above technical solution, four sets of "L"-shaped fixing frames are fixed on the top surface of the base by bolts, and connecting screws are installed between two adjacent fixing frames by threaded connection. The lower mold is fixedly clamped between the side walls of the four sets of fixing frames.

[0010] According to the above technical solution, two linear motors are installed on both side walls of the base. The linear motors are arranged along the height direction of the base. A lifting plate is connected to the output end of the two linear motors on the same side. The fan is fixedly installed on the top surface of the lifting plate.

[0011] According to the above technical solution, the opposite side walls of the scraper seats on both sides are vertically arranged and an air outlet plate is installed between their inner walls. A connecting plate is fixedly installed on the inner wall of the scraper seat opposite to the air outlet plate, and multiple air ducts are connected between the connecting plate and the air outlet plate.

[0012] According to the above technical solution, two supports are fixedly installed on both sides of the base. The two supports on the same side are rotatably connected by a shaft and a guide wheel is provided. The air outlet of the fan and the air inlet of the connecting plate are connected by a duct, and the duct is in rotatable contact with the outer surface of the guide wheel.

[0013] According to the above technical solution, a fixing groove is provided on the inner wall of each of the two sides of the inlet of the collection tank. Guide blocks are connected to the side walls of the scraper seat. The guide blocks slide between the inner walls of the fixing grooves. A bidirectional screw is rotatably installed in the fixing groove. A rotary motor connected to and driven by the bidirectional screw is installed on one side wall of the base. The two guide blocks in the same fixing groove slide with the bidirectional screw through a threaded transmission, but the two guide blocks move in opposite directions.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] By opening a collection groove below the lower mold, and setting two relatively movable scrapers in the collection groove, the top surface of the scrapers is used to scrape off the burrs at the bottom of the formed fins. At the same time, the height of the fan is adjusted when the scrapers move, and the scraped burrs are blown off to the bottom of the collection groove by the fan. This avoids the situation where non-magnetic metal waste such as aluminum and copper is ineffectively adsorbed when using electromagnets to adsorb waste. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 yes Figure 2 Schematic diagram of the cross section of AA;

[0019] Figure 4 This is a schematic diagram showing the connection between the scraper seat and the fan of this utility model.

[0020] In the diagram: 1. Base; 11. PLC controller; 12. Collection trough; 2. Top plate; 3. Lifting platform; 31. Upper mold; 4. Lower mold; 41. Fixing frame; 411. Connecting screw; 5. Lifting plate; 51. Fan; 6. Scraper seat; 61. Connecting plate; 62. Air outlet plate; 63. Guide block; 631. Bidirectional screw; 7. Guide wheel. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 The present invention provides the following technical solution:

[0023] An automatic stamping and forming equipment for evaporator fins of a washing machine includes a base 1, a top plate 2, an upper mold 31, and a lower mold 4. A PLC controller 11 is fixedly installed on the base 1 with screws. The top plate 2 is located above the base 1 and is connected by four support columns and two guide columns. A lifting platform 3 is slidably arranged between the guide columns on both sides through a lifting motor. The lifting motor is fixed to the top plate 2 with bolts. The upper mold 31 is fixedly installed on the bottom wall of the lifting platform 3. Four sets of "L"-shaped fixing frames 41 are fixed on the top surface of the base 1 with bolts. A connecting screw 411 is installed between two adjacent fixing frames 41 by means of threaded connection. The lower mold 4 is fixedly clamped between the side walls of the four sets of fixing frames 41.

[0024] It should be further explained that the lifting motor is started by the PLC controller 11, so that its output shaft drives the lifting platform 3 to move up and down in the vertical direction. The PLC controller 11 limits the output distance of the lifting motor, thereby realizing the fit between the upper mold 31 and the lower mold 4, thus completing the stamping process of the fins. The lower mold 4 is placed in the middle position at the top of the collection tank 12. Then, the positions of the four sets of fixing frames 41 are adjusted so that the lower mold 4 and the fixing frames 41 fit tightly together. If the adjustment is not in place, the distance between the adjacent fixing frames 41 can be adjusted by rotating the connecting screw 411, so that the fixing frame 41 is in contact with the lower mold 4. Then, the fixing frame 41 is fixed to the top surface of the base 1 by bolts.

[0025] The base 1 has a through-type collection slot 12 (e.g., Figure 3As shown in the “L” shaped structure, the lower mold 4 is located above the inlet of the collection tank 12. Two scraper seats 6 are slidably arranged between the inner walls of the inlet of the collection tank 12 and move relative to each other. The scraper seats 6 slide in contact with the lower surface of the lower mold 4. A fan 51 that moves vertically is provided on the side wall of the base 1. The fan 51 and the scraper seats 6 are connected by a duct.

[0026] Two linear motors are fixedly installed on both sides of the base 1. The linear motors are arranged along the height direction of the base 1. A lifting plate 5 is connected to the output end of the two linear motors on the same side. The fan 51 is fixedly installed on the top surface of the lifting plate 5. The opposite side walls of the scraper seats 6 on both sides are vertically arranged, and an air outlet plate 62 is installed between their inner walls by screws. A connecting plate 61 is fixedly installed between the inner wall of the scraper seat 6 and the air outlet plate 62 on the other side by screws. The connecting plate 61 is hollow. Multiple air ducts are connected between the connecting plate 61 and the air outlet plate 62. Two supports are fixedly installed on both sides of the base 1. The two supports on the same side are rotatably connected by a shaft and a guide wheel 7 is provided. A duct is connected between the air outlet of the fan 51 and the air inlet of the connecting plate 61, and the duct is in rotatable contact with the outer surface of the guide wheel 7.

[0027] Fixed grooves are provided on the inner walls of the two sides of the inlet of the collection tank 12. Guide blocks 63 are connected to the two side walls of the scraper seat 6. The guide blocks 63 slide between the inner walls of the fixed grooves. A bidirectional screw 631 is rotatably installed in the fixed groove. A rotary motor connected to and driven by the bidirectional screw 631 is installed on one side wall of the base 1. The two guide blocks 63 in the same fixed groove slide with the bidirectional screw 631 through threaded transmission, but the two guide blocks 63 move in opposite directions.

[0028] It should be further explained that when the output distance of the lifting motor reaches its maximum, the PLC controller 11 simultaneously starts the rotary motor, the linear motor, and the fan 51, and controls the displacement speed of the guide block 63 and the lifting plate 5 to be equal. The guide block 63 moves and adjusts horizontally under the drive of the bidirectional screw 631. When moving, it scrapes off the burrs by contacting the bottom wall of the fins. The lifting plate 5 drives the fan 51 to move upward, so that the air duct between the fan 51 and the connecting plate 61 can be adjusted in coordination. At the same time, the fan 51 also sends out airflow from the air outlet plate 62 through the air duct and the connecting plate 61, so as to blow the scraped burrs directly to the bottom of the collection tank 12.

[0029] 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 stamping and forming equipment for evaporator fins of a washing machine, comprising a base (1), a top plate (2), an upper mold (31), and a lower mold (4), characterized in that, A PLC controller (11) is installed on the base (1), and the lower mold (4) is fixedly clamped on the top surface of the base (1). The top plate (2) is set above the base (1) and four support columns and two guide columns are connected between them. A lifting platform (3) is slidably set between the guide columns on both sides through a lifting motor. The upper mold (31) is installed on the bottom wall of the lifting platform (3). A collection groove (12) is provided through the base (1). The lower mold (4) is located above the inlet of the collection groove (12). Two scraper seats (6) are slidably arranged between the inner walls of the inlet of the collection groove (12). The scraper seats (6) are in sliding contact with the lower surface of the lower mold (4). A fan (51) that moves in the vertical direction is provided on the side wall of the base (1). The fan (51) and the scraper seats (6) are connected by a duct.

2. The automatic stamping and forming equipment for evaporator fins of a washing machine according to claim 1, characterized in that, Four sets of "L"-shaped fixing frames (41) are fixed on the top surface of the base (1) by bolts. A connecting screw (411) is installed between two adjacent fixing frames (41) by threaded connection. The lower mold (4) is fixedly clamped between the side walls of the four sets of fixing frames (41).

3. The automatic stamping and forming equipment for evaporator fins of a washing machine according to claim 2, characterized in that, Two linear motors are installed on both sides of the base (1). The linear motors are arranged along the height direction of the base (1). A lifting plate (5) is connected to the output end of the two linear motors on the same side. The fan (51) is fixedly installed on the top surface of the lifting plate (5).

4. The automatic stamping and forming equipment for evaporator fins of a washing machine according to claim 3, characterized in that, The side walls of the scraper seats (6) on both sides are vertically arranged and air outlet plates (62) are installed between their inner walls. A connecting plate (61) is fixedly installed on the scraper seat (6) between the inner walls of the other side opposite to the air outlet plate (62). Multiple air ducts are connected between the connecting plate (61) and the air outlet plate (62).

5. The automatic stamping and forming equipment for evaporator fins of a washing machine according to claim 4, characterized in that, Two supports are fixedly installed on both sides of the base (1). The two supports on the same side are connected by a shaft and a guide wheel (7) is rotatably arranged. A duct connects the air outlet of the fan (51) and the air inlet of the connecting plate (61), and the duct is in rotatable contact with the outer surface of the guide wheel (7).

6. The automatic stamping and forming equipment for evaporator fins of a washing machine according to claim 5, characterized in that, Fixed grooves are provided on the inner walls of the two sides of the inlet of the collection groove (12). Guide blocks (63) are connected to the two side walls of the scraper seat (6). The guide blocks (63) slide between the inner walls of the fixed grooves. A bidirectional screw (631) is rotatably installed in the fixed groove. A rotary motor connected to and driven by the bidirectional screw (631) is installed on one side wall of the base (1). The two guide blocks (63) in the same fixed groove slide with the bidirectional screw (631) through threaded transmission, but the two guide blocks (63) move in opposite directions.

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