A fin dispensing device

Abstract

The utility model relates to a kind of fin distribution device, including bottom plate and fork mechanism, bottom plate is provided with upper shelf and lower shelf, upper shelf is installed with fork mechanism and push block, lower shelf is provided with fin arrangement device;Upper shelf and lower shelf are rotatably connected by connecting member, cylinder is provided on bottom plate, and cylinder output end is rotatably connected to upper shelf;Fin arrangement device side is installed with channel entrance, and fin arrangement device other side is provided with channel exit, and flat tube is placed in the position below channel exit and on bottom plate.The utility model is based on synchronous belt step motion, push block stroke adjustable setting, can be adapted to the fin of 5mm~50mm width, 20mm~270mm length, change type time <5 minutes;Setting photoelectric sensor, station sensor realizes monitoring and alarm, cooperate maintenance turnover cylinder, can realize quick maintenance, without disassembling integral device, reduce maintenance frequency, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchanger processing equipment, and in particular to a fin distribution device. Background Technology

[0002] Heat exchangers are core heat exchange components in automobiles, air conditioning, industrial refrigeration and other fields. The heat dissipation performance of the intercooler core directly determines the working efficiency of the heat exchanger. The intercooler core is mainly assembled from flat tubes, fins, side plates and main plates. The overall assembly of the core is usually completed by a special assembly machine.

[0003] In the actual production process of the intercooler core, the assembly of the fins and flat tubes is the core preliminary process:

[0004] First, the finned strips need to be precisely inserted into the grooves of the flat tube to form a "tube-strip combination". Then, they are transported to the assembly area for temporary storage. Subsequently, the operators install the main board onto the main board mounting molds on both sides of the assembly machine, fix the front and rear side plates to the side plate fixing seats, start the assembly machine to complete the integration and assembly of the core, and then manually install the core fixing clamps on the assembly platform before finally removing the core.

[0005] However, existing equipment for inserting fins into flat tubes generally suffers from the following technical drawbacks:

[0006] The station spacing and push (push block) stroke of the existing equipment are mostly fixed structures, which can only be adapted to a single production environment (single specification of fins and flat tubes). When producing cores of different sizes, a large number of parts need to be replaced, and the changeover time is long (more than 30 minutes), making it difficult to adapt to the production needs of multiple specifications and small batches.

[0007] The standard design uses a fixed-cycle transmission method, which cannot dynamically adjust the speed according to the fin feeding frequency. Furthermore, the rigid pushing structure is prone to damaging the fins, affecting the yield rate.

[0008] In summary, existing fin insertion flat tube equipment is insufficient to meet the production needs of modern industrial automation scenarios. Therefore, there is an urgent need for a fin distribution device that can solve the above-mentioned technical problems. Summary of the Invention

[0009] Technical problem to be solved by the utility model

[0010] The station spacing and push block stroke are fixed, which cannot be adapted to the production environment of multiple specifications and small batches. The fixed-cycle transmission cannot be adapted to the different frequencies of fin feeding, and the rigid push structure is prone to damaging the fins.

[0011] Technical solutions for solving technical problems

[0012] Other advantageous embodiments and extensions of this invention, which are inventive in themselves, are set forth in the following description.

[0013] A fin distribution device includes a base plate and a fork mechanism. The base plate is provided with an upper frame and a lower frame. The upper frame is equipped with the fork mechanism and a push block. The lower frame is provided with a fin arrangement device.

[0014] The upper frame and the lower frame are rotatably connected by a connector, and a cylinder is provided on the base plate, with the cylinder output end rotatably connected to the upper frame;

[0015] A channel inlet is installed on one side of the fin arrangement device, and a channel outlet is provided on the other side of the fin arrangement device. A flat tube placement area is provided on the base plate and below the channel outlet.

[0016] Preferably, the fin arrangement device includes a plurality of parallel guide grooves, which are adapted to the fins.

[0017] Preferably, the maintenance tilting cylinder is embedded in the base plate, and the base plate is provided with a bracket for accommodating the maintenance tilting cylinder.

[0018] Preferably, the channel inlet is configured as a rectangular cylindrical structure with an elongated detection groove on its upper surface. A photoelectric sensor is disposed above the channel inlet, and the detection head of the photoelectric sensor points towards the detection groove.

[0019] Preferably, a synchronous belt is provided on the lower frame, the synchronous belt is driven by a synchronous pulley, and the synchronous pulley is connected to a servo motor through a transmission assembly;

[0020] The synchronization belt is located between the channel inlet and the fin arrangement device and enables transmission between the channel inlet and the fin arrangement device.

[0021] Preferably, the fin arrangement device is provided with a plurality of arrangement stations, and each arrangement station is provided with a station sensor, the detection head of the station sensor pointing towards the synchronous belt.

[0022] Preferably, the push block and the shift fork mechanism are adapted to the arrangement station, and the shift fork mechanism is connected to the servo motor through a transmission mechanism and a synchronous pulley.

[0023] Preferably, the end of the push block near the fin is provided with an arc-shaped transition surface.

[0024] Preferably, the lower end of the frame is provided with an origin reset photoelectric sensor.

[0025] Preferably, the photoelectric sensor, the workstation sensor, the origin reset photoelectric sensor transmit signals to the control system, and the servo motor is electrically connected to the control system.

[0026] Effects of the utility model

[0027] Based on synchronous belt stepping motion and adjustable push block stroke, it can adapt to fins with a width of 5mm~50mm and a length of 20mm~270mm, with a changeover time of less than 5 minutes. Compared with existing products, it can adapt to different production environments in a short time.

[0028] Equipped with photoelectric sensors and workstation sensors for monitoring and alarm functions, and combined with maintenance tilting cylinders, it enables rapid inspection and maintenance without disassembling the entire device, reducing maintenance frequency and improving production efficiency. Attached Figure Description

[0029] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. In the drawings:

[0030] Figure 1 This is a structural view of the present invention;

[0031] Figure 2 The above Figure 1 A magnified view of part "A" in the middle;

[0032] Figure 3 The above Figure 1 A magnified view of part "B" in the middle.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Base plate; 101. Bracket; 102. Maintenance tilting cylinder; 103. Upper frame; 104. Connector; 2. Photoelectric sensor; 201. Origin reset photoelectric sensor; 202. Workstation sensor; 202-1. Arrangement station; 3. Channel entrance; 301. Fin arrangement device; 302. Synchronous belt; 303. Synchronous pulley; 304. Lower frame; 305. Channel exit; 306. Flat tube placement area; 4. Fork mechanism; 401. Push block; 5. Servo motor. Detailed Implementation

[0035] Hereinafter, a fin distribution device according to one embodiment of the present invention will be described with reference to the accompanying drawings.

[0036] Please refer to Figures 1-3As shown in the figure, as an embodiment of the present invention, a fin distribution device is provided for semi-automatic operation of distributing a number of fins onto a flat tube. It includes a base plate 1, a lower frame 304 mounted on the base plate 1, an upper frame 103 rotatably connected to the lower frame 304 via a connector 104, a maintenance tilting cylinder 102 positioned between the upper frame 103 and the base plate 1, and a fin arrangement device 301 mounted on the lower frame 304. The fin arrangement device 301 includes an auxiliary guiding structure, and further includes a feeding component, an arrangement component, a detection component, and a discharging component.

[0037] The upper frame 103 and the lower frame 304 are connected by a flipping mechanism, and the maintenance flipping cylinder 102 and the upper frame 103 are connected by a movable connection (universal rotation).

[0038] The feeding assembly is used to convey the fins to the unloading assembly and to carry the flat tubes;

[0039] The arranging assembly is used to arrange the fins to correspond to the flat tube, the feeding assembly is used to push the arranged fins to the corresponding station of the flat tube, and the detection assembly is used to detect signals in the production process and feed back signals to the control system.

[0040] Specifically, the fin arrangement device 301 is derived from existing technology and is set as a frame structure fixed on the lower frame 304, including a base, positioning blocks and guide side plates. The purpose is that when the fins are conveyed to the arrangement station 202-1 by the synchronous belt 302, the guide side plates guide the fins to move in the center through the inclined surface. The fins stop after the front end contacts the positioning blocks to achieve axial positioning. The synchronous belt 302 continues to move to convey the next fin to the next arrangement station 202-1, until fins are placed on several arrangement stations 202-1.

[0041] More specifically, the auxiliary guide structure is set between the channel inlet 3 and the channel outlet 305 and fixed on the lower frame 304. It includes a guide channel, a support base plate 1 and a buffer strip. The guide channel consists of two parallel guide plates with a spacing adapted to the fin width. The support base plate 1 has a polished surface and can support the fins to slide out of the guide channel and move to the synchronous belt 302. The purpose is that after the fins enter the channel inlet 3, they slide along the guide plate constraint direction of the guide channel under the force of gravity and the push of the subsequent fins, and move to the synchronous belt 302 after passing through the support base plate 1.

[0042] Regarding the maintenance tilting cylinder 102, it is embedded in the base plate 1. The base plate 1 is provided with a bracket 101 for accommodating the maintenance tilting cylinder 102. One end of the maintenance tilting cylinder 102 is fixed to the base plate 1 through the bracket 101, and the other end is rotatably connected to the upper frame 103.

[0043] Specifically, the maintenance tilting cylinder 102 is a double-acting cylinder;

[0044] When in use, the maintenance tilting cylinder 102 can drive the upper frame 103 to tilt around the rotating part and disengage from the lower frame 304, or simultaneously drive the upper frame 103 and the lower frame 304 to disengage from the base plate 1, so as to realize the rotation maintenance of the upper frame 103 and the lower frame 304. After the maintenance is completed, the maintenance tilting cylinder 102 is reset and the device returns to the working state.

[0045] Regarding the feeding assembly, used to convey the fins to the arrangement station 202-1, it includes,

[0046] Channel inlet 3, serving as the fin feeding channel, is located at one end of the fin arrangement device 301;

[0047] During use, after the fins enter the device through the channel inlet 3, they move toward the channel outlet 305 under the action of the auxiliary guide structure.

[0048] Synchronous belt 302 is laid on the lower frame 304. Its power is provided by synchronous pulley 303. Synchronous pulley 303 and servo motor 5 are connected through a transmission component (not shown in the figure due to the perspective, based on existing technology, and those skilled in the art can achieve this through common knowledge of mechanical transmission) to realize the step speed regulation transmission of synchronous belt 302.

[0049] Specifically, the channel inlet 3 is set as a rectangular cylindrical structure, with a long strip detection groove in the center of its upper surface. The detection groove corresponds to the installation position of the photoelectric sensor 2. When the photoelectric sensor 2 is installed directly above the channel inlet 3 at the position corresponding to the detection groove, it can detect the fins in the channel inlet 3 (fins passing through, fins stopping).

[0050] Regarding the arrangement assembly, used to position and arrange the fins to fit a position compatible with the flat tube, it includes,

[0051] The fin arrangement device 301 is mounted on the lower frame 304. The fin arrangement device 301 is provided with a number of arrangement stations 202-1, which are 7 in this embodiment. Each arrangement station 202-1 is provided with a station sensor 202. The number of the fork mechanism 4 and the push block 401 adapted to the arrangement station 202-1 are matched with the number of arrangement stations 202-1.

[0052] Specifically, the workstation sensor 202 is a diffuse reflection photoelectric sensor 2, which is fixed in the workstation 202-1 by the bracket 101, and its detection head points to the synchronous belt 302;

[0053] During use, the fins fall onto the synchronous belt 302 through the channel outlet 305. Since the synchronous belt 302 is a step transmission, it can drive the fins to be transported one by one to the arrangement station 202-1. The station sensor 202 detects the fins' arrival status at the corresponding station in real time.

[0054] Regarding the feeding assembly, used to push the arranged and distributed fins into the flat tube, it includes,

[0055] The shift fork mechanism 4 is mounted on the upper frame 103. The servo motor 5 drives the shift fork mechanism 4 to move through the transmission mechanism and the synchronous wheel 303.

[0056] Push block 401 is located at the output end of shift fork mechanism 4;

[0057] Specifically, the push block 401 is made of PA66 nylon material, and its end near the fin (working end) is provided with an arc-shaped transition surface to buffer when pushing the fin and avoid damaging the fin when pushing out the thin-walled fin. The shift fork mechanism 4 is derived from the prior art and is intended to convert the rotation output of the servo motor 5 into the linear motion of the push block 401. Those skilled in the art can use other rotating pairs with the same transmission function to replace the shift fork mechanism 4, such as a cam linkage mechanism.

[0058] More specifically, the stroke adjustment of the push block 401 can be achieved through lead screw and nut transmission, including adjusting lead screw, one end of which is fixedly connected to the push block 401, and the other end passes through the nut seat fixed to the upper frame 103. An adjusting handwheel or servo motor is provided at the end of the lead screw.

[0059] When in use, when the station sensors 202 of several workstations 202-1 detect the fins, the fork mechanism 4 drives the push block 401 to move, and pushes several fins from the workstations 202-1 to the flat tube in the flat tube placement 306 at the same time. After the push is completed, the push block 401 is reset along the exit path.

[0060] Regarding the detection components, these are used in conjunction with the control system to control the workflow and detect anomalies. They include...

[0061] The photoelectric sensor 2 is installed on the channel inlet 3. Its output end (detection probe) points to the channel inlet 3, detects the feeding signal of the fins in real time, and feeds the signal back to the control system, thereby controlling the movement of the servo motor 5, the synchronous pulley 303, and the synchronous belt 302.

[0062] The origin reset photoelectric sensor 201 is installed at the end of the upper frame 103 to detect the reset position of the synchronous belt 302, thereby realizing the detection of the initial position of fin transmission (the position of the synchronous belt 302 relative to the lower frame 304 when the first fin is conveyed into the synchronous belt 302);

[0063] Specifically, photoelectric sensor 2 monitors the fin conveying process, and origin reset sensor monitors the reset of synchronous belt 302.

[0064] During use, if there is a station detector in several rows of workstations 202-1 that fails to detect fins, a feedback signal will be sent to the control system, triggering an alarm and pausing operation to remind the operator to manually resolve the missing fin issue.

[0065] Furthermore, based on the aforementioned photoelectric sensor 2 and control system, the device can achieve adaptive dynamic speed regulation. By monitoring the fin feeding frequency at the channel inlet 3 in real time, the control system automatically adjusts the conveying speed of the synchronous belt 302. Combined with the PID control algorithm (used to adjust the fin input speed, i.e. the output speed of the servo motor 5, and the output pressure of the shift fork mechanism 4, which is realized through the built-in PID function module of the PLC controller), the acceleration and deceleration curve of the servo motor 5 is dynamically optimized to avoid fin offset and collision caused by sudden start and stop, thereby increasing production capacity while reducing the mechanical impact of the device, and improving service life and production capacity.

[0066] Furthermore, the spacing of the synchronous belt 302 and the stroke of the fork mechanism 4 and the push block 401 included in the feeding component can be adjusted with one click through the HMI (human-machine interface, suitable for flexible production scenarios with small batches and multiple specifications), thus adapting to fins of different specifications (5mm~50mm width, 20mm~270mm), with an adjustment time of less than 5 minutes, significantly reducing downtime losses;

[0067] Among them, the synchronous pulley 303 driving the synchronous belt 302 and the synchronous pulley 303 driving the shift fork mechanism 4 are the same type of parts, and they run through independent transmission paths without interfering with each other.

[0068] Normal usage status

[0069] The control system adopts a PLC programmable logic controller, which realizes multi-device control through modular design. It receives signals from various sensors (fin position signal of photoelectric sensor 2, fork reset signal of origin reset photoelectric sensor 201, and start / stop signal input by the operator) through digital input module, and outputs control commands through digital output module to drive actuators such as servo motor 5 and alarm. The PLC controller can preset logic to realize automated operation, adapt to the processing needs of fins of different specifications, and improve overall production efficiency.

[0070] S1. Fin feeding: The fins enter the device through the channel inlet 3. After the photoelectric sensor 2 detects the fin signal, it feeds back the signal to the control system, which controls the servo motor 5 to drive the synchronous pulley 303 and the synchronous belt 302 to perform stepping motion.

[0071] S2, fin arrangement: the fins are conveyed to the synchronous belt 302 through the channel inlet 3. The synchronous belt 302 conveys the fins one by one to the fin arrangement device 301 based on the preset step distance of the control system, until they are conveyed to the arrangement station 202-1. The station sensor 202 on the arrangement station 202-1 detects whether there are fins on the arrangement station 202-1 and feeds back the signal to the control system.

[0072] S3, Full position unloading: When the station sensors 202 in several workstations 202-1 detect the fins, they send a feedback signal to the control system, which controls the output of the servo motor 5 and the synchronous wheel 303 to drive the shift fork mechanism 4 to move, thereby driving the push block 401 to move. The push blocks 401 set in several corresponding workstations 202-1 push the fins into the flat tube of the flat tube placement 306.

[0073] That is, the arranged fins are pushed into the next process (welding or assembly).

[0074] S4. Reset: After the material is unloaded, the origin reset photoelectric sensor 201 detects the position of the synchronous belt 302 and sends a feedback signal to the control system, which controls the servo motor 5 and the synchronous pulley 303 to drive the synchronous belt 302 to move until the synchronous belt 302 is reset to the initial position, and then the next work process is cycled.

[0075] Compared with the prior art, this utility model has the following characteristics:

[0076] Based on the stepping motion of the synchronous belt 302 and the adjustable stroke setting of the push block 401, it can adapt to fins with a width of 5mm~50mm and a length of 20mm~270mm, with a changeover time of less than 5 minutes. Compared with existing products, it can adapt to different production environments in a short time.

[0077] The photoelectric sensor 2 and the workstation sensor 202 are set up to realize monitoring and alarm. Together with the maintenance tilting cylinder 102, it can realize quick inspection and maintenance without disassembling the whole device, reduce maintenance frequency and improve production efficiency.

[0078] This utility model is not limited to any particular implementation method; various modifications can be made as long as the principle is not violated.

Claims

1. A fin distribution device, comprising a base plate (1) and a fork mechanism (4), characterized in that: The base plate (1) is provided with an upper frame (103) and a lower frame (304). The upper frame (103) is equipped with the fork mechanism (4) and the push block (401). The lower frame (304) is provided with a fin arrangement device (301). The upper frame (103) and the lower frame (304) are rotatably connected by a connector (104). A maintenance tilting cylinder (102) is provided on the base plate (1), and the output end of the maintenance tilting cylinder (102) is rotatably connected to the upper frame (103). A channel inlet (3) is installed on one side of the fin arrangement device (301), and a channel outlet (305) is provided on the other side of the fin arrangement device (301). A flat tube placement area (306) is provided on the base plate (1) and below the channel outlet (305).

2. The fin distribution device according to claim 1, characterized in that: The fin arrangement device (301) includes a plurality of parallel guide grooves, which are adapted to the fins.

3. The fin distribution device according to claim 1, characterized in that: The maintenance tilting cylinder (102) is embedded in the base plate (1), and the base plate (1) is provided with a bracket (101) for accommodating the maintenance tilting cylinder (102).

4. The fin distribution device according to claim 1, characterized in that: The channel entrance (3) is configured as a rectangular cylindrical structure with a long strip detection groove on its upper surface. A photoelectric sensor (2) is provided above the channel entrance (3), and the detection head of the photoelectric sensor (2) points to the detection groove.

5. The fin distribution device according to claim 1, characterized in that: The lower frame (304) is provided with a synchronous belt (302), which is driven by a synchronous pulley (303). The synchronous pulley (303) is connected to a servo motor (5) through a transmission assembly. The synchronous belt (302) is located between the channel entrance (3) and the fin arrangement device (301) and can realize the transmission between the channel entrance (3) and the fin arrangement device (301).

6. The fin distribution device according to claim 5, characterized in that: The fin arrangement device (301) is provided with a number of arrangement stations (202-1), and each arrangement station (202-1) is provided with a station sensor (202), and the detection head of the station sensor (202) points to the synchronous belt (302).

7. A fin distribution device according to claim 6, characterized in that: The push block (401) and the shift fork mechanism (4) are adapted to the arrangement station (202-1). The shift fork mechanism (4) is connected to the servo motor (5) through the transmission mechanism and the synchronous wheel (303).

8. The fin distribution device according to claim 7, characterized in that: The end of the push block (401) near the fin is configured with an arc-shaped transition surface.

9. A fin distribution device according to claim 8, characterized in that: The lower frame (304) is equipped with an origin reset photoelectric sensor (201) at its end.

10. A fin distribution device according to claim 9, characterized in that: The photoelectric sensor (2), the workstation sensor (202), the origin reset photoelectric sensor (201) transmit signals to the control system, and the servo motor (5) is electrically connected to the control system.

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