Blanking device and blanking method
By designing a blanking device for heat exchanger assembly and replacing the worm pallet with negative pressure suction cup technology, the problem of flat tubes being easily distorted and bent during blanking is solved, which improves assembly efficiency and reduces maintenance costs.
Patent Information
- Application Number
- CN202311171886.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-12
- Publication Date
- 2025-03-14
AI Technical Summary
During the blanking process of existing heat exchanger assembly machines, the flat tube is prone to twisting, bending and uneven thickness, resulting in the flat tube not fitting with the reference surface, and the worm pluck cannot press the flat tube, which is prone to jamming and affecting the assembly efficiency.
A blanking device is designed, including a bench, mounting frame, blanking part and guide part. Through the guide part, the suction cup is driven from the storage part to the blanking passage, and the flat tube is adsorbed and transferred by negative pressure, avoiding the step of worm plucking the material.
It effectively avoids damage and deformation of flat tubes during blanking, solves the problem of stuck flat tubes, improves the processing efficiency of the assembly machine, has a simple structure, low maintenance cost and low noise.
Smart Images
Figure CN119609588A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat exchanger assembly, and in particular to a blanking device and a blanking method. Background Art
[0002] With the development of society, the assembly of products is in a trend of development from manual to semi-automatic and fully automatic. In the relevant technologies, when assembling certain structural parts, it is necessary to arrange and assemble multiple of the parts to meet the product assembly needs. When assembling products, special processing equipment is generally used to improve production efficiency. At present, the blanking method of flat tubes in heat exchanger assembly machines is mainly storage type, that is, multiple flat tubes are placed in a storage tank, and the flat tubes are pushed out and pushed out of the storage tank one by one with push blocks, worm blocks, etc., to realize the blanking of flat tubes. However, if the flat tube is thin, wide, and long, the flat tube is more likely to be twisted, bent, and uneven in thickness. In the case of poor quality of incoming materials, the following problems may occur during use: the flat tube is not in contact with the reference surface, and the worm block cannot press down the flat tube; when the worm block pushes the flat tube down, the bottom of the flat tube is pressed on the stop block. The above situation causes the mechanism to easily get stuck with the flat tube, the assembly machine stops, and the efficiency cannot be effectively improved. Summary of the invention
[0003] In order to solve the defects of the related art, the present application provides a blanking device for assembling a heat exchanger core, comprising: A stand, on which a material storage portion is provided; A mounting frame, the mounting frame is fixedly connected to the stand; The blanking part is arranged on the mounting frame, and includes a guide part, which can move along a third direction, and the guide part is provided with at least one adsorption component, and the adsorption component includes a suction cup, and the adsorption component can generate negative pressure; the blanking part also includes a blanking table, and the blanking table is provided with a rotatable discharge screw, and the blanking table is provided with a blanking channel in the first direction, and the blanking channel is provided with an opening, and the opening has a preset width; the guide part can drive the adsorption component to move from the storage part to the blanking channel; the flat tube is blanked by suction cup adsorption and transfer of the guide part, which can effectively avoid damage and deformation of the flat tube during the blanking process, and there is no step of worm gear block ejecting in the related technology, which effectively solves the problem of stuck flat tubes during the blanking process of the assembly machine, and at the same time, the adsorption transfer method has a simple structure, low maintenance cost, low noise, and higher work efficiency.
[0004] Optionally, the mounting frame includes a first support beam along the first direction and a second support beam along the second direction; the guide portion includes at least one first guide rod, the first guide rod can be displaced along a third direction relative to the second support beam or the first support beam, the first guide rod has a first working arm extending along the first direction, the adsorption assembly includes a first fixed plate, the first fixed plate is connected to the first working arm, the first fixed plate extends along the second direction, at least one conduit is provided on the first fixed plate, the conduit extends along the third direction, a suction cup is provided at one end of the conduit, and the other end of the conduit is connected to the vacuum generator; the first guide rod and the suction cup are used to replace the worm gear block in the related technology, which is more efficient and has a simpler structure, and there is no problem of the tube being stuck.
[0005] Optionally, the guide portion also includes a second guide rod, which can be displaced along a third direction relative to the second support beam or the first support beam, and the second guide rod has a second working arm extending along the first direction, and the second working arm or the second guide rod can move along the first direction, and the adsorption assembly includes a second fixed plate, the second fixed plate is fixedly connected to the second working arm, and the second fixed plate extends along the second direction. At least one conduit is provided on the second fixed plate, and the conduit extends along the third direction. A suction cup is provided at one end of the conduit, and the other end of the conduit is connected to a vacuum generator. By arranging two alternatingly working first guide rods and second guide rods, the efficiency of blanking is further improved.
[0006] Optionally, the mounting frame also includes a third support beam, which is arranged parallel to the second support beam in the first direction, and the third support beam is connected to the first support beam or the second support beam. The guide portion also includes a second guide rod, which is arranged on the third support beam and can be displaced relative to the third support beam along the third direction. The second guide rod has a second working arm extending along the first direction, and the third support beam can move along the first direction. The adsorption assembly includes a second fixed plate, which is fixedly connected to the second working arm, and the second fixed plate extends along the second direction. At least one conduit is provided on the second fixed plate, and the conduit extends along the third direction. A suction cup is provided at one end of the conduit, and the other end of the conduit is connected to the vacuum generator. With this arrangement, a working mechanism for dropping two flat tubes at a time is formed, and the dropping efficiency is higher.
[0007] Optionally, the first working arm includes a rotating part, which is rotatably connected to the first working arm, and a first fixed plate and a second fixed plate are respectively fixed on opposite sides of the rotating part, and the first fixed plate and the second fixed plate extend along the second direction, and the suction cups of the first fixed plate and the second fixed plate are arranged opposite to each other; the design of the rotating part enables two flat tubes to be dropped at the same time, and the structure of the rotating part is simpler and more efficient.
[0008] Optionally, the material storage portion includes a supporting portion and a feeding assembly arranged on the supporting portion, the feeding assembly includes a driving member fixedly connected to the supporting portion, a first guide rail arranged along a first direction, and also includes a second guide rail slidably connected to the first guide rail, the second guide rail is arranged along a third direction, the feeding assembly also includes a driving block slidably connected to the second guide rail, the driving block has a predetermined height in the first direction, and under the action of the driving member, the driving block can move along the third direction and along the first direction; the driving block can be used to control the state of the flat tube in the material storage portion, on the one hand to prevent the flat tube from falling over, and on the other hand, only the flat tube needs to be pushed forward, thereby reducing the transfer distance of the guide portion and improving work efficiency.
[0009] Optionally, the material storage section also includes a limiting pressure block, which is arranged on one side of the supporting section close to the blanking section, and the limiting pressure block can move along the first direction and the third direction; the limiting pressure block is used to control the rhythm of blanking, improve the efficiency of blanking, and prevent the flat tube from falling over.
[0010] Optionally, two blanking channels are provided, namely a first channel and a second channel. The first channel and the second channel are arranged side by side along the third direction, and there is a preset distance between the first channel and the second channel.
[0011] The present application also provides a blanking method for blanking flat tubes or sheets of a heat exchanger, comprising the following steps: The workpieces to be processed are placed in the material storage section; The suction cup generates negative pressure and adheres to the surface of the workpiece; The guide part drives the suction cup, and the suction cup drives the workpiece to be processed to move to the blanking channel; The suction cup stops sucking and waits for the workpiece to fall from the blanking channel.
[0012] Optionally, after the workpiece to be processed is placed in the material storage section, the following steps are also included: a driving block pushes the workpiece to be processed to slide along the supporting section until the workpiece to be processed contacts a limiting pressure block; after the suction cup generates negative pressure and is adsorbed on the surface of the workpiece to be processed, the limiting pressure block moves downward; after the suction cup drives the workpiece to be processed to move to the blanking channel, the limiting pressure block rises upward and moves along a third direction to approach the workpiece to be processed in the material storage section; blanking is carried out by suction with the suction cup, which reduces the jamming of the assembly machine and improves the efficiency of blanking.
[0013] Optionally, the suction cup generates negative pressure and adsorbs on the surface of the workpiece to be processed, specifically including the following steps: The first guide rod moves, driving the first working arm to approach the workpiece to be processed, and the suction cup is adsorbed on the surface of the workpiece to be processed; The first guide rod moves in the reverse direction, driving the first working arm away from the workpiece to be processed, and the suction cup drives the workpiece to be processed away from the material storage part; The second guide rod moves along the first direction and along the third direction, driving the second working arm to approach the workpiece to be processed, and the suction cup is adsorbed on the surface of the workpiece to be processed; The second guide rod moves in the opposite direction along the third direction, driving the second working arm to leave the material storage portion; thus, a working mechanism for dropping two flat tubes at a time is formed, and the dropping efficiency is higher.
[0014] Optionally, the suction cup generates negative pressure and adsorbs on the surface of the workpiece to be processed, specifically including the following steps: The first guide rod moves to drive the first working arm to approach the workpiece to be processed, and the suction cup of the first fixed plate absorbs a workpiece to be processed; The rotating part drives the first fixed plate and the second fixed plate to rotate, and the suction cup of the first fixed plate drives the sucked workpiece to be processed to leave the material storage part; The suction cup of the second fixed plate approaches the workpiece to be processed in the material storage portion and sucks it.
[0015] The present application utilizes negative pressure adsorption to drop flat tubes or sheets, eliminates the design of a worm gear shift block, and absorbs the flat tubes through a suction cup, which can fundamentally solve the problem of the assembly machine getting stuck with the flat tubes, and will not cause damage to the surface of the flat tubes, thereby greatly improving the processing efficiency of the assembly machine.
[0016] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of Example 1 of the present application; Figure 2 This is a schematic diagram of the structure of Example 3 of the present application; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of Example 3 of the present application; Figure 5 This is a schematic diagram of the structure of Example 4 of the present application; Figure 6 This is a structural diagram of Example 5 of the present application. Reference numerals: Stand-1; Material storage part 2, supporting part 21, feeding assembly 22, first guide rail 221, second guide rail 222, driving block 223, limiting pressing block 23; Mounting frame 3, first support beam 31, second support beam 32, third support beam 33; Blanking part 4, guide part 41, first guide rod 411, first working arm 412, second guide rod 413, second working arm 414, rotating part 415, adsorption assembly 42, first fixing plate 421, guide tube 422, suction cup 423, second fixing plate 424, blanking platform 43, discharge screw 431, blanking channel 432, first channel 4321, second channel 4322, opening 433; The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. Implementation
[0018] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0019] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0020] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0021] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0022] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. Example 1
[0023] A first aspect of an embodiment of the present application provides a blanking device for assembling a heat exchanger core, comprising: A stand 1, on which a material storage portion 2 is provided; A mounting frame 3, the mounting frame 3 is fixedly connected to the stand 1; The blanking part 4 is arranged on the mounting frame 3, and includes a guide part 41, the guide part 41 can move along the third direction, the guide part 41 is provided with at least one adsorption component 42, the adsorption component 42 includes a suction cup 423, and the adsorption component 42 can generate negative pressure; the blanking part 4 also includes a blanking platform 43, the blanking platform 43 is provided with a rotatable discharge screw 431, the blanking platform 43 is provided with a blanking channel 432 in the first direction, the blanking channel 432 is provided with an opening 433, and the opening 433 has a preset width; the guide part 41 can drive The adsorption assembly 42 moves from the storage part 2 to the blanking channel 432; in this embodiment, the blanking device is used for blanking the flat tubes of the heat exchanger, and is used for assembling the core of the heat exchanger. The flat tubes of the heat exchanger are placed in order on the storage part 2 of the rack 1, the storage part 2 is horizontal, and the flat tubes are placed in a manner that the larger surface of the flat tubes is perpendicular to the horizontal plane. The mounting frame 3 is fixedly connected to the rack 1, and the blanking part 4 is arranged on the mounting frame 3. The blanking part 4 includes a guide part 41, which is arranged along the third direction and the front and rear direction of the rack 1. The guide part 41 is driven by the drive The guide part 41 is driven by a moving part and can move along the front-back direction. The driving part can be a driving motor, or an electric push rod or a cylinder. The guide part 41 is provided with at least one adsorption component 42. The adsorption component 42 includes a suction cup 423. The adsorption component 42 can generate negative pressure. Further, the suction cup 423 is adsorbed on the large surface of the flat tube. The driving part drives the guide part 41 to move, and further drives the flat tube to leave the storage part 2 and finally reach the blanking channel 432. The suction cup 423 stops adsorption, and the flat tube passes through the blanking channel 432 to discharge the screw 431, and the fixed-distance blanking of the flat tube is completed; the flat tube is blanked by the suction cup 423 adsorption and the guide part 41 transfer method, which can effectively avoid the damage and deformation of the flat tube during the blanking process, and there is no step of the worm block pushing the material in the related technology, which effectively solves the problem of the flat tube being stuck during the blanking process of the assembly machine. At the same time, the adsorption transfer method has a simple structure, low maintenance cost, low noise, and higher work efficiency. In this embodiment, the opening of the blanking channel is a funnel shape with a wide top and a narrow bottom, and the minimum width of the opening is the thickness of a flat tube.
[0024] Optionally, the mounting bracket 3 includes a first support beam 31 along a first direction and a second support beam 32 along a second direction; the guiding portion 41 includes at least one first guide rod 411, and the first guide rod 411 can displace relative to the second support beam 32 or the first support beam 31 along a third direction. The first guide rod 411 extends along the first direction with a first working arm 412. The adsorption assembly 42 includes a first fixing plate 421, and the first fixing plate 421 is connected to the first working arm 412. The first fixing plate 421 extends along the second direction. At least one conduit 422 is provided on the first fixing plate 421. The conduit 422 extends along the third direction. One end of the conduit 422 is provided with a suction cup 423, and the other end of the conduit 422 communicates with a vacuum generator; in this embodiment, the mounting bracket 3 is fixedly connected to the upper part of the bench 1. The first support beam 31 is in the first direction, that is, generally along the up and down direction. There are two first support beams 31, which are respectively fixed on the left and right sides of the bench 1. The second support beam 32 is along the second direction, that is, the left and right direction. The second support beam 32 is fixed to the upper part of the first support beam 31. The first support beam 31 and the two second support beams 32 form a "冂"-shaped structure for the flat tube to pass through below; the guiding portion 41 includes two first guide rods 411, which are arranged on the left and right sides of the mounting bracket 3. The first guide rod 411 can be slidably connected to the second support beam 32 along the front and back direction. In other embodiments, it can also be slidably connected to the first support beam 31. The first guide rod 411 extends forward and is fixedly connected with a first working arm 412 at the front part. The first working arm 412 generally extends along the first direction, that is, the up and down direction. The first working arm 412 extends downward close to the storage portion 2. A first fixing plate 421 is fixedly connected to the lower part of the first working arm 412. The first fixing plate 421 extends along the left and right direction, that is, the second direction. A plurality of mounting holes are provided on the second fixing plate 424, and the conduit 422 is installed on the mounting holes. The conduit 422 is arranged along the third direction, that is, the front and back direction. A suction cup 423 is installed at the rear end of the conduit 422, and the other end is communicated with the vacuum generator through a pipeline; the driving member drives the guide rod to move backward, and the guide rod drives the first working arm 412 and the first fixing plate 421 to move backward. Further, the suction cup 423 approaches the flat tube of the storage portion 2, and the vacuum generator generates negative pressure. The suction cup 423 adsorbs the closest flat tube. The driving member drives the guide rod to move forward, and the first working arm 412 and the suction cup 423 drive the adsorbed flat tube to leave the storage portion 2 and finally reach the upper part of the blanking channel 432 and keep the whole in a vertical state. The vacuum generator stops generating negative pressure, and the flat tube falls into the blanking channel 432 under the action of gravity and enters the discharge screw 431 through the blanking channel 432 to complete one blanking; replacing the worm dial in the related technology with the first guide rod and the suction cup has higher efficiency, a simpler structure, and will not cause the situation of jamming the flat tube.
[0025] Optionally, the material storage portion 2 includes a supporting portion 21, a feeding assembly 22 arranged on the supporting portion 21, the feeding assembly 22 includes a driving member fixedly connected to the supporting portion 21, a first guide rail 221 arranged along a first direction, and also includes a second guide rail 222 slidably connected to the first guide rail 221, the second guide rail 222 is arranged along a third direction, and the feeding assembly 22 also includes a driving block 223 slidably connected to the second guide rail 222, the driving block 223 has a predetermined height in the first direction, and under the action of the driving member, the driving block 223 can move along the third direction and Move along the first direction; in this embodiment, the supporting part 21 includes a plurality of supporting plates arranged along the third direction, i.e., the front-to-back direction, which are used to constitute the bottom of the material storage part 2, but there are intervals between them. The flat tubes to be processed will be placed closely on the supporting part 21 in sequence, and the feeding group will be arranged at the lower part of the supporting part 21. The driving block 223 moves in the interval between the supporting plates. Under the action of the first guide rail 221 and the second guide rail 222, the driving block 223 can have two degrees of freedom in two directions, the first direction, i.e., the up-down direction and the third direction, i.e., the front-to-back direction. In actual working process During the process, the flat tube is placed on the supporting part 21. Since the flat tube is placed in a direction with the flat surface facing forward and backward, there is a risk that the flat tube will tilt backward and fall over. At this time, a part of the driving block 223 will protrude from the upper surface of the support plate of the supporting part 21 and move along the third direction to press the flat tube from the rear side to prevent the flat tube from falling over. Each time the suction cup 423 takes a flat tube from the material storage part 2, the driving block 223 pushes the flat tube forward by the thickness of the flat tube, so that the suction cup 423 can continue to suck the flat tube at the same position for blanking. When the flat tube is placed on the supporting portion 21, the driving block 223 moves downward first, and the driving block 223 is located as a whole under the upper surface of the supporting plate, and further retreats to the rear side of the newly added flat tube. Further, the driving block 223 rises and abuts the newly added flat tube. In this embodiment, the driving member is a cylinder, and in other embodiments it can be a stepper motor and a belt drive. The driving block 223 can be used to control the state of the flat tube in the storage portion 2. On the one hand, it can prevent the flat tube from falling over. On the other hand, it only needs to push the flat tube forward, which reduces the transfer distance of the guide portion 41 and improves work efficiency.
[0026] Optionally, the material storage section 2 also includes a limiting pressure block 23, which is arranged on a side of the supporting section 21 close to the blanking section 4, and the limiting pressure block 23 can move in the first direction and the third direction; in the present embodiment, a limiting pressure block 23 is provided at the front part of the support plate of the material storage section 2, and the structural design of the limiting pressure block 23 and the driving block 223 are roughly the same, and have two degrees of freedom in two directions. The difference is that the limiting pressure block 23 moves backward and downward, and the backward movement can prevent the flat tube from falling forward. When the suction cup 423 approaches the material storage section 2 and sucks the flat tube, the limiting pressure block 23 moves downward to release the flat tube, and the flat tube is adsorbed and transferred by the suction cup 423. When the flat tube leaves the material storage section 2, the limiting pressure block 23 moves upward and backward, and is close to the remaining flat tubes of the rear material storage section 2; the rhythm of blanking is controlled by the limiting pressure block 23, the efficiency of blanking is improved, and the flat tube is prevented from falling. Example 2
[0027] In the present embodiment, the guide portion 41 further includes a second guide rod 413, the second guide rod 413 can be displaced along the third direction relative to the second support beam 32 or the first support beam 31, the second guide rod 413 extends along the first direction with a second working arm 414, the second working arm 414 or the second guide rod 413 can move along the first direction, the adsorption assembly 42 includes a second fixed plate 424, the second fixed plate 424 is fixedly connected to the second working arm 414, the second fixed plate 424 extends along the second direction, at least one conduit 422 is provided on the second fixed plate 424, the conduit 422 extends along the third direction, a suction cup 423 is provided at one end of the conduit 422, and the other end of the conduit 422 is connected to the vacuum generator; in the present embodiment, in addition to the first guide rod 411 for blanking, the mounting frame 3 is also provided with a second guide rod 413, the second guide rod 413 is arranged in a group, preferably a plurality of groups, along the second manner, and is spaced apart from the first guide rod 411, and the difference from the first guide rod 411 is that the second working arm 414 of the second guide rod 413 The working arm 414 can slide along the first direction, that is, the up and down direction, so that the suction cup 423 of the second working arm 414 and the suction cup 423 of the first working arm 412 are in different horizontal positions. When working, the first flat tube is first sucked by the suction cup 423 of the first working arm 412, the first guide rod 411 moves forward a certain distance, the second working arm 414 moves downward to the position of the storage part 2, the suction cup 423 of the second working arm 414 sucks the second flat tube, and the second guide rod 413 moves forward to keep a certain distance between the two sucked flat tubes; in this embodiment, the second fixed plate 424 is not a continuous whole plate, but a separate small plate fixed to the lower part of the second working arm 414, and the second working arm 414 can drive the second fixed plate 424 to pass through the gap between two adjacent first working arms 412. With this arrangement, the cooperation between the first working arm 412 and the second working arm 414 can be more coordinated, and there will be no interference and obstruction. In other embodiments, the second fixed plate 424 can also be a whole plate.
[0028] Optionally, two material-dropping channels 432 are provided, namely, a first channel 4321 and a second channel 4322, which are arranged side by side along the third direction, and a preset distance is provided between the first channel 4321 and the second channel 4322; in this embodiment, the first channel 4321 and the second channel 4322 correspond to the first working arm 412 and the second working arm 414, one in front and one behind, and the first working arm 412 and the second working arm 414 maintain the same position as the first channel 4321 and the second channel 4322 during the forward and backward movement. Therefore, when the flat tube adsorbed by the first working arm 412 reaches the top of the first channel 4321, the flat tube adsorbed by the second working arm 414 also reaches the top of the second channel 4322, the vacuum generator stops adsorption, and the two flat tubes fall down at the same time and enter the discharge screw 431 through the first channel 4321 and the second channel 4322; thus, a working mechanism of dropping two flat tubes at a time is formed, and the dropping efficiency is higher; in other embodiments, the first working arm 412 and the second working arm 414 may not arrive at the dropping channel 432 at the same time, but may arrive one after another. Example 3
[0029] Optionally, the mounting frame 3 further includes a third support beam 33, which is arranged parallel to the second support beam 32 in the first direction, and the third support beam 33 is connected to the first support beam 31 or the second support beam 32, the guide portion 41 further includes a second guide rod 413, the second guide rod 413 is arranged on the third support beam 33, and can be displaced relative to the third support beam 33 along the third direction, the second guide rod 413 extends with a second working arm 414 along the first direction, and the third support beam 33 can move along the first direction, the adsorption component 42 includes a second fixed plate 424, the second fixed plate 424 is fixedly connected to the second working arm 414, the second fixed plate 424 extends along the second direction, at least one conduit 422 is provided on the second fixed plate 424, the conduit 422 extends along the third direction, a suction cup 423 is provided at one end of the conduit 422, and the other end of the conduit 422 is connected to the vacuum generator; this embodiment also has two The guide rod and the two working arms are used to absorb the flat tubes. The difference from Example 2 is that, in this embodiment, the third support beam 33 is arranged in parallel to the upper part of the second support beam 32, and the second support beam 32 can move in the first direction, i.e., the up and down direction. The second guide rod 413 is arranged on the third support beam 33, and is spaced apart from the first guide rod 411 in the second direction, or multiple first working arms 412 are arranged on the relatively inner side, and the two second working arms 414 are arranged on the relatively outer side of the first working arm 412. When working, the first flat tube is first absorbed by the suction cup 423 of the first working arm 412, the first guide rod 411 moves forward a certain distance, the third support beam 33 moves downward to drive the second working arm 414 to move downward to the position of the storage part 2, the suction cup 423 of the second working arm 414 absorbs the second flat tube, and the second guide rod 413 moves forward to keep a certain distance between the two absorbed flat tubes.
[0030] Optionally, two material-dropping channels 432 are provided, namely, a first channel 4321 and a second channel 4322, which are arranged side by side along the third direction, and a preset distance is provided between the first channel 4321 and the second channel 4322; in this embodiment, the first channel 4321 and the second channel 4322 correspond to the first working arm 412 and the second working arm 414, one in front and one behind, and the first working arm 412 and the second working arm 414 maintain the same position as the first channel 4321 and the second channel 4322 during the forward and backward movement. Therefore, when the flat tube adsorbed by the first working arm 412 reaches the top of the first channel 4321, the flat tube adsorbed by the second working arm 414 also reaches the top of the second channel 4322, the vacuum generator stops adsorption, and the two flat tubes fall down at the same time and enter the discharge screw 431 through the first channel 4321 and the second channel 4322; thus, a working mechanism of dropping two flat tubes at a time is formed, and the efficiency of dropping is higher; in other embodiments, the first working arm 412 and the second working arm 414 may not arrive at the dropping channel 432 at the same time, but may arrive one after another; Example 4
[0031] The difference from Example 3 is that this embodiment can be provided with two layers of material storage parts 2, the first working arm 412 is responsible for the flat tubes of the first layer of material storage part 2; the second working arm 414 is responsible for the flat tubes of the second layer of material storage part 2, so as to improve efficiency. Example 5
[0032] Optionally, the first working arm 412 includes a rotating portion 415, which is rotatably connected to the first working arm 412, and the first fixing plate 421 and the second fixing plate 424 are respectively fixed on opposite sides of the rotating portion 415, the first fixing plate 421 and the second fixing plate 424 extend along the second direction, and the suction cups 423 of the first fixing plate 421 and the second fixing plate 424 are arranged opposite to each other; the difference from Example 1 is that in this embodiment, a rotating portion 415 is provided at the end of the first working arm 412, and the rotating portion 415 is a plate-shaped structure, which is driven to rotate by a driving motor, and the first fixing plate 421 and the second fixing plate 424 are respectively fixed on the front and rear sides of the rotating portion 415, the suction cups 423 of the first fixing plate 421 and the second fixing plate 424 are arranged opposite to each other, and the first fixing plate 421 The distance between the suction cup 423 and the suction cup 423 of the second fixed plate 424 is the spacing between the first channel 4321 and the second channel 4322; during operation, the first guide rod 411 moves to drive the rotating part 415 to approach the storage part 2, and the suction cup 423 of the first fixed plate 421 first absorbs a flat tube, and further, the driving motor drives the rotating part 415 to rotate 180 degrees, and the suction cup 423 of the second fixed plate 424 absorbs a flat tube, and further, the first guide rod 411 moves forward, driving the two absorbed flat tubes to the upper part of the first channel 4321 and the second channel 4322, and then, the vacuum generator stops adsorption, and the two flat tubes enter the discharge screw 431; the design of the rotating part 415 enables the two flat tubes to be dropped at the same time, and the structure of the rotating part 415 is simpler and more efficient. Example 6
[0033] The present application also provides a blanking method for blanking flat tubes or sheets of a heat exchanger, comprising the following steps: The workpiece to be processed is placed in the material storage section 2; The suction cup 423 generates negative pressure and is adsorbed on the surface of the workpiece to be processed; The guide part 41 drives the suction cup 423, and the suction cup 423 drives the workpiece to be processed to move to the blanking channel 432; The suction cup 423 stops sucking, and the workpiece falls from the drop channel 432; Optionally, after the workpiece to be processed is placed in the storage part 2, the following steps are further included: the driving block 223 pushes the workpiece to be processed to slide along the supporting part 21 until the workpiece to be processed contacts the limiting pressing block 23; after the suction cup 423 generates negative pressure and adsorbs on the surface of the workpiece to be processed, the following steps are further included: the limiting pressing block 23 moves downward; after the suction cup 423 drives the workpiece to be processed to move to the blanking channel 432, the following steps are further included, the limiting pressing block 23 rises and moves along the third direction, approaching the workpiece to be processed in the storage part 2; in this embodiment, the mounting frame 3 is fixedly connected to the upper part of the bench 1, the first support beam 31 is in the first direction, that is, generally along the up and down direction, there are two first support beams 31, which are respectively fixed on the left and right sides of the bench 1, the second support beam 32 is along the second direction, that is, the left and right direction, the second support beam 32 is fixed to the upper part of the first support beam 31, the first support beam 31 and the two second support beams 32 form a "冂"-shaped structure, and the flat tube is allowed to pass through below; the guiding part 41 includes two first guide rods 411, which are arranged on the left and right sides of the mounting frame 3, and the first guide rods 411 can be slidably connected to the second support beam 32 along the front and back directions. In other embodiments, they can also be slidably connected to the first support beam 31. The first guide rods 411 extend forward and are fixedly connected with a first working arm 412 at the front part. The first working arm 412 generally extends along the first direction, that is, the up and down direction. The first working arm 412 extends downward close to the storage part 2. A first fixing plate 421 is fixedly connected to the lower part of the first working arm 412. The first fixing plate 421 extends along the left and right direction, that is, the second direction. A plurality of mounting holes are provided on the second fixing plate 424, and a conduit 422 is installed on the mounting holes. The conduit 422 is arranged along the third direction, that is, the front and back direction. A suction cup 423 is installed at the rear end of the conduit 422, and the other end is communicated with a vacuum generator through a pipeline; the driving member drives the guide rod to move backward, and the first guide rod 411 drives the first working arm 412 and the first fixing plate 421 to move backward. Further, the suction cup 423 approaches the flat tube in the storage part 2, the vacuum generator generates negative pressure, and the suction cup 423 adsorbs the closest flat tube. The driving member drives the guide rod to move forward, and the first working arm 412 and the suction cup 423 drive the adsorbed flat tube to leave the storage part 2 and finally reach the upper part of the blanking channel 432 and keep the whole in a vertical state. The vacuum generator stops generating negative pressure, and the flat tube falls into the blanking channel 432 under the action of gravity and enters the discharge screw 431 through the blanking channel 432 to complete one blanking. Embodiment 7
[0034] Optionally, the suction cup 423 generates negative pressure and adsorbs on the surface of the workpiece to be processed, which specifically includes the following steps: The first guide rod 411 displaces, driving the first working arm 412 to approach the workpiece to be processed, and the suction cup 423 adsorbs on the surface of the workpiece to be processed; The first guide rod 411 displaces in the reverse direction, driving the first working arm 412 to move away from the workpiece to be processed, and the suction cup 423 drives the workpiece to be processed to leave the storage part 2; The second guide rod 413 moves along the first direction and along the third direction, driving the second working arm 414 to approach the workpiece to be processed, and the suction cup 423 is adsorbed on the surface of the workpiece to be processed; The second guide rod 413 moves in the reverse direction along the third direction, driving the second working arm 414 to leave the material storage portion 2; In the present embodiment, the guide portion 41 further includes a second guide rod 413, the second guide rod 413 can be displaced along the third direction relative to the second support beam 32 or the first support beam 31, the second guide rod 413 extends along the first direction with a second working arm 414, the second working arm 414 or the second guide rod 413 can move along the first direction, the adsorption assembly 42 includes a second fixed plate 424, the second fixed plate 424 is fixedly connected to the second working arm 414, the second fixed plate 424 extends along the second direction, at least one conduit 422 is provided on the second fixed plate 424, the conduit 422 extends along the third direction, a suction cup 423 is provided at one end of the conduit 422, and the other end of the conduit 422 is connected to the vacuum generator; in the present embodiment, in addition to the first guide rod 411 for blanking, the mounting frame 3 is also provided with a second guide rod 413, the second guide rod 413 is arranged in a group, preferably a plurality of groups, along the second manner, and is spaced apart from the first guide rod 411, and the difference from the first guide rod 411 is that the second working arm 414 of the second guide rod 413 The working arm 414 can slide along the first direction, that is, the up and down direction, so that the suction cup 423 of the second working arm 414 and the suction cup 423 of the first working arm 412 are in different horizontal positions. When working, the first flat tube is first sucked by the suction cup 423 of the first working arm 412, the first guide rod 411 moves forward a certain distance, the second working arm 414 moves downward to the position of the storage part 2, the suction cup 423 of the second working arm 414 sucks the second flat tube, and the second guide rod 413 moves forward to keep a certain distance between the two sucked flat tubes; in this embodiment, the second fixed plate 424 is not a continuous whole plate, but a separate small plate fixed to the lower part of the second working arm 414, and the second working arm 414 can drive the second fixed plate 424 to pass through the gap between two adjacent first working arms 412. With this arrangement, the cooperation between the first working arm 412 and the second working arm 414 can be more coordinated, and there will be no interference and obstruction. In other embodiments, the second fixed plate 424 can also be a whole plate.
[0035] Optionally, two material-dropping channels 432 are provided, namely, a first channel 4321 and a second channel 4322, which are arranged side by side along the third direction, and a preset distance is provided between the first channel 4321 and the second channel 4322; in this embodiment, the first channel 4321 and the second channel 4322 correspond to the first working arm 412 and the second working arm 414, one in front and one behind, and the first working arm 412 and the second working arm 414 maintain the same position as the first channel 4321 and the second channel 4322 during the forward and backward movement. Therefore, when the flat tube adsorbed by the first working arm 412 reaches the top of the first channel 4321, the flat tube adsorbed by the second working arm 414 also reaches the top of the second channel 4322, the vacuum generator stops adsorption, and the two flat tubes fall down at the same time and enter the discharge screw 431 through the first channel 4321 and the second channel 4322; thus, a working mechanism of dropping two flat tubes at a time is formed, and the dropping efficiency is higher; in other embodiments, the first working arm 412 and the second working arm 414 may not arrive at the dropping channel 432 at the same time, but may arrive one after another. Example 8
[0036] Optionally, the suction cup 423 generates negative pressure and adsorbs on the surface of the workpiece to be processed, specifically including the following steps: The first guide rod 411 moves to drive the first working arm 412 to approach the workpiece to be processed, and the suction cup 423 of the first fixed plate 421 sucks a workpiece to be processed; The rotating part 415 drives the first fixed plate 421 and the second fixed plate 424 to rotate, and the suction cup 423 of the first fixed plate 421 drives the sucked workpiece to be processed to leave the material storage part 2; The suction cup 423 of the second fixing plate 424 approaches the workpiece to be processed in the material storage portion 2 and sucks it.
[0037] The first working arm 412 includes a rotating portion 415, which is rotatably connected to the first working arm 412, and the first fixing plate 421 and the second fixing plate 424 are fixed to opposite sides of the rotating portion 415, respectively, and the first fixing plate 421 and the second fixing plate 424 extend along the second direction, and the suction cups 423 of the first fixing plate 421 and the second fixing plate 424 are arranged opposite to each other; the difference from Example 1 is that in this embodiment, a rotating portion 415 is provided at the end of the first working arm 412, and the rotating portion 415 is a plate-shaped structure, which is driven to rotate by a driving motor, and the first fixing plate 421 and the second fixing plate 424 are fixed to the front and rear sides of the rotating portion 415, respectively, and the suction cups 423 of the first fixing plate 421 and the second fixing plate 424 are arranged opposite to each other, and the suction cups of the first fixing plate 421 The distance between 423 and the suction cup 423 of the second fixed plate 424 is the spacing between the first channel 4321 and the second channel 4322; when working, the first guide rod 411 moves to drive the rotating part 415 to approach the storage part 2, and the suction cup 423 of the first fixed plate 421 first absorbs a flat tube, and further, the driving motor drives the rotating part 415 to rotate 180 degrees, and the suction cup 423 of the second fixed plate 424 absorbs a flat tube, and further, the first guide rod 411 moves forward, driving the two absorbed flat tubes to the upper part of the first channel 4321 and the second channel 4322, and then, the vacuum generator stops adsorption, and the two flat tubes enter the discharge screw 431; the design of the rotating part 415 realizes the simultaneous dropping of the two flat tubes, and the structure of the rotating part 415 is simpler and more efficient.
[0038] The present application utilizes negative pressure adsorption to carry out blanking of flat tubes or sheets, which can fundamentally solve the problem of flat tubes being stuck in the assembly machine, and will not cause damage to the surface of the flat tubes, thereby greatly improving the processing efficiency of the assembly machine.
[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A blanking device for assembling a heat exchanger core, characterized in that: The blanking device comprises: A stand (1), wherein a material storage portion (2) is provided on the stand (1); A mounting frame (3), the mounting frame (3) being fixedly connected to the stand (1); A material-dropping portion (4), the material-dropping portion (4) being arranged on the mounting frame (3), comprising a guide portion (41), the guide portion (41) being capable of moving along a third direction, the guide portion (41) being provided with at least one adsorption component (42), the adsorption component comprising a suction cup (423), the adsorption component (42) being capable of generating negative pressure; the material-dropping portion (4) further comprising a material-dropping platform (43), the material-dropping platform (43) being provided with a rotatable discharge screw (431), the material-dropping platform (43) being provided with a material-dropping channel (432) in a first direction, the material-dropping channel (432) being provided with an opening (433), the opening (433) having a preset width; the guide portion (41) being capable of driving the adsorption component (42) to move from the material storage portion (2) to the material-dropping channel (432).
2. The blanking device according to claim 1, characterized in that: The mounting frame comprises a first support beam (31) along a first direction and a second support beam (32) along a second direction; the guide portion (41) comprises at least one first guide rod (411), the first guide rod (411) being capable of being displaced relative to the second support beam (32) or the first support beam (31) along a third direction; the first guide rod (411) having a first working arm (412) extending along the first direction; the adsorption assembly (42) comprising a first fixing plate (421), the first fixing plate (421) being connected to the first working arm (412), the first fixing plate (421) extending along the second direction; at least one conduit (422) being provided on the first fixing plate (421), the conduit (422) extending along the third direction; a suction cup (423) being provided at one end of the conduit (422), and the other end of the conduit (422) being connected to a vacuum generator.
3. The blanking device according to claim 2, characterized in that: The guide portion (41) further comprises a second guide rod (413), the second guide rod (413) being capable of being displaced along a third direction relative to the second support beam (32) or the first support beam (31), the second guide rod (413) being provided with a second working arm (414) extending along the first direction, the second working arm (414) or the second guide rod (413) being capable of being moved along the first direction, and the adsorption assembly (42) comprising a second fixing plate (424), the second fixing plate (424) being fixedly connected to the second working arm (414), the second fixing plate (424) extending along the second direction, at least one conduit (422) being provided on the second fixing plate (424), the conduit (422) extending along the third direction, a suction cup (423) being provided at one end of the conduit (422), and the other end of the conduit (422) being connected to a vacuum generator.
4. The blanking device according to claim 2, characterized in that: The mounting frame (3) further comprises a third support beam (33), the third support beam (33) being arranged parallel to the second support beam (32) in a first direction, the third support beam (33) being connected to the first support beam (31) or the second support beam (32), the guide portion (41) further comprises a second guide rod (413), the second guide rod (413) being arranged on the third support beam and being capable of being displaced relative to the third support beam (33) in a third direction, the second guide rod (413) being provided with a second working arm (413) extending in the first direction 14), the third support beam (33) is movable along a first direction, the adsorption assembly (42) comprises a second fixing plate (424), the second fixing plate (424) is fixedly connected to the second working arm (414), the second fixing plate (424) extends along a second direction, at least one conduit (422) is provided on the second fixing plate (424), the conduit (422) extends along a third direction, a suction cup (423) is provided at one end of the conduit (422), and the other end of the conduit (422) is connected to a vacuum generator.
5. The blanking device according to claim 2, characterized in that: The first working arm (412) comprises a rotating portion (415), the rotating portion (415) being rotatably connected to the first working arm (412), a first fixing plate (421) and a second fixing plate (424) being fixed on opposite sides of the rotating portion (415), respectively, the first fixing plate (421) and the second fixing plate (424) extending along a second direction, and the suction cups (423) of the first fixing plate (421) and the second fixing plate (424) being arranged opposite to each other.
6. The blanking device according to claim 1, characterized in that: The material storage portion (2) comprises a supporting portion (21), and a material feeding assembly (22) arranged on the supporting portion, the material feeding assembly comprising a driving member fixedly connected to the supporting portion, a first guide rail (221) arranged along a first direction, and a second guide rail (222) slidably connected to the first guide rail (221), the second guide rail (222) being arranged along a third direction, the material feeding assembly further comprising a driving block (223) slidably connected to the second guide rail (222), the driving block (2) having a predetermined height in the first direction, and under the action of the driving member, the driving block (223) can move along the third direction and along the first direction.
7. The blanking device according to claim 6, characterized in that: The material storage portion (2) further comprises a limiting pressure block (23), wherein the limiting pressure block (23) is arranged on a side of the supporting portion (21) close to the blanking portion (4), and the limiting pressure block (23) is capable of moving along a first direction and a third direction.
8. The blanking device according to any one of claims 3 to 5, characterized in that: The material dropping channels (432) are provided with two, namely a first channel (4321) and a second channel (4322); the first channel (4321) and the second channel (4322) are arranged side by side along a third direction; and a preset distance is provided between the first channel (4321) and the second channel (4322).
9. A blanking method for assembling a heat exchanger core, characterized in that: The following steps are involved: The workpiece to be processed is placed in the material storage section (2); The suction cup (423) generates negative pressure and is adsorbed on the surface of the workpiece to be processed; The guide portion (41) drives the suction cup (423), and the suction cup (423) drives the workpiece to be processed to move to the blanking channel (432); The suction cup (423) stops sucking, and the workpiece falls from the blanking channel (432).
10. The blanking method according to claim 9, characterized in that: After the workpiece to be processed is placed in the material storage portion (2), the following steps are also included: the driving block (22) pushes the workpiece to be processed to slide along the supporting portion (21) until the workpiece to be processed contacts the limiting pressure block (23); after the suction cup (423) generates negative pressure and adsorbs on the surface of the workpiece to be processed, the limiting pressure block (23) moves downward; after the suction cup (423) drives the workpiece to be processed to move to the blanking channel (432), the limiting pressure block (23) rises upward and moves along a third direction to approach the workpiece to be processed in the material storage portion (2).
11. The blanking method according to claim 9 or 10, characterized in that: The suction cup (423) generates negative pressure and adsorbs on the surface of the workpiece to be processed, which specifically includes the following steps: The first guide rod (411) moves to drive the first working arm (412) to approach the workpiece to be processed, and the suction cup (423) is adsorbed on the surface of the workpiece to be processed; The first guide rod (411) moves in the reverse direction, driving the first working arm (412) away from the workpiece to be processed, and the suction cup (423) drives the workpiece to be processed away from the material storage portion (2); The second guide rod (413) moves along the first direction and along the third direction, driving the second working arm (414) to approach the workpiece to be processed, and the suction cup (423) is adsorbed on the surface of the workpiece to be processed; The second guide rod (413) moves in the opposite direction along the third direction, driving the second working arm (414) to leave the material storage portion (2).
12. The blanking method according to claim 9 or 10, characterized in that: The suction cup (423) generates negative pressure and adsorbs on the surface of the workpiece to be processed, which specifically includes the following steps: The first guide rod (411) moves to drive the first working arm (412) to approach the workpiece to be processed, and the suction cup (423) of the first fixed plate (421) sucks a workpiece to be processed; The rotating part (415) drives the first fixed plate (421) and the second fixed plate (424) to rotate (180) degrees, and the suction cup (423) of the first fixed plate (421) drives the sucked workpiece to be processed to leave the material storage part (2); The suction cup (423) of the second fixed plate (424) approaches the workpiece to be processed in the material storage portion (2) and sucks it.