An air suction device of a fin production line

Abstract

The utility model relates to the field of fin production equipment, concretely relates to a kind of suction device of fin production line, including the suction material assembly of installation in the transverse cutting assembly back of fin production line, suction material assembly is located above material receiving assembly;Suction material assembly includes mounting bracket, and negative pressure assembly is installed above mounting bracket, and the suction end of negative pressure assembly is connected with air bellow by flexible connecting piece, and servo drive assembly is installed on air bellow, and suction air material assembly component is drivingly connected with servo drive assembly, and suction air material assembly component is arranged in air bellow bottom surface, and air bellow is installed on bracket by buffer, and the opposite side wall of air bellow is equipped with negative pressure release mechanism, and negative pressure release mechanism is driven by servo drive component.The utility model can solve the problem of smoothly collecting finished product fin in fin production process.

Description

Technical Field

[0001] This utility model relates to the field of fin production equipment, and more specifically to a suction device for a fin production line. Background Technology

[0002] Fins, as an essential component of heat exchange tubes, are typically used for heat exchange. During fin production, a suction device is required at the end of the production line. This suction device is a crucial part of the fin collection process, and its workflow is as follows: 1. A punch press with a die first punches out the fins; 2. A centrifugal motor runs, filling the suction box with gas, which rises and generates upward suction; 3. The suction device uses the upward airflow to hold the fins in place, allowing them to move on the suction plate; 5. Once the required number of holes is obtained, the die cuts the fins horizontally, and simultaneously, the damper opens to expel air from the suction box. The ejector device then activates, using a suction-blowing ejector plate to knock the fins onto the receiving device for collection (the horizontal cutting and ejector actions are synchronized).

[0003] In existing suction devices, the opening and closing of the damper and the movement of the suction and blowing plate are all controlled by cylinders. The cylinder controls the suction and blowing plate to feed material. Because the cylinder's movement is linear, it has significant inertia. When the suction and blowing plate reaches its lower limit point, the impact force caused by inertia is extremely large, causing the suction box to vibrate and affecting the stability of material receiving (vibration of the suction plate can cause deviations between the center of the fin hole and the position of the receiving pin, preventing the fin hole from smoothly fitting into the receiving pin when the fins are dropped). The cylinder uses air pressure to open and close the damper, which has a certain lag and cannot be synchronized with the running angle of the punch press. This can easily lead to problems such as the damper opening prematurely, causing the fins to not be sucked in, or the damper opening lagging behind, causing poor material feeding. Utility Model Content

[0004] The purpose of this invention is to provide a suction device for a fin production line to solve the above-mentioned problems and to solve the problem of smoothly collecting finished fins during the fin production process.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A suction device for a fin production line includes a suction and material feeding assembly installed behind the cross-cutting assembly of the fin production line, the suction and material feeding assembly being located above the material receiving assembly;

[0007] The suction and material feeding assembly includes a mounting bracket, a negative pressure assembly is mounted on top of the mounting bracket, the suction end of the negative pressure assembly is connected to an air box via a flexible connector, a servo drive assembly is mounted on the air box, the servo drive assembly is driven by a suction and blowing material feeding component, the suction and blowing material feeding component is located on the bottom surface of the air box, the air box is mounted on the bracket via a buffer, and a negative pressure release mechanism is provided on two opposite side walls of the air box, the negative pressure release mechanism is driven by the servo drive component.

[0008] Preferably, the flexible connector includes an upper flange fixedly connected to the suction end of the negative pressure assembly, a flexible tube fixedly connected to the bottom surface of the upper flange, a lower flange fixedly connected to the bottom end of the flexible tube, the lower flange fixedly connected to the top surface of the air box, the air box being located below the support, the flexible tube passing through the support, a negative pressure support flange fixedly connected to the upper flange, and the negative pressure support flange fixedly connected to the top surface of the support.

[0009] Preferably, the servo drive assembly includes a feeding servo motor fixedly connected to the side wall of the air box, a feeding servo motor drive sprocket shafted to the feeding servo motor shaft, the feeding servo motor drive sprocket being located inside the air box, a feeding transmission shaft rotatably connected inside the air box, a feeding transmission shaft shafted to a feeding sprocket, the feeding servo motor drive sprocket and the feeding sprocket being connected by a chain drive, and both ends of the feeding transmission shaft passing through the air box and shafted to an eccentric drive component.

[0010] Preferably, the eccentric drive component includes an eccentric shaft block axially connected to the end of the feeding transmission shaft. A bearing is fixedly sleeved on the outer side of the eccentric shaft block. The bearing is installed in a bearing housing. A support is rotatably connected to the bottom of the bearing housing. The support is fixedly connected to the suction and blowing feeding component. A guide post is fixedly connected to the suction and blowing feeding component. A linear bearing is slidably sleeved on the outer side of the guide post. The linear bearing is vertically arranged and fixedly connected to the air box.

[0011] Preferably, the negative pressure release mechanism includes dampers symmetrically arranged on both sides of the air box, a damper drive shaft is fixedly connected to the center line of the damper, the ends of the damper drive shaft are rotatably connected to both ends of the air box, and the ends of the two damper drive shafts are axially connected to damper synchronous pulleys.

[0012] The servo drive component includes a damper servo motor installed at the end of the air box. The damper servo motor is shaft-connected to a damper servo motor drive shaft, which is rotatably connected to both ends of the air box. The end of the damper servo motor drive shaft is shaft-connected to a damper active synchronous pulley. The damper active synchronous pulley and the two damper synchronous pulleys are fitted with the same damper synchronous belt.

[0013] Preferably, the buffer includes an upper damping block and a lower damping block. The upper damping block is located on the top surface of the mounting bracket, and the lower damping block is located between the mounting bracket and the air box. The upper damping block, the lower damping block, the mounting bracket, and the air box are connected together by bolts.

[0014] Preferably, the suction and blowing material feeding component includes a fixed suction and blowing plate fixedly connected to the bottom surface of the air box, a movable feeding plate movably embedded in the fixed suction and blowing plate, the movable feeding plate being fixedly connected to the support, a guide post being fixedly connected to the movable feeding plate, a plurality of first suction and blowing holes being opened on the fixed suction and blowing plate, and a plurality of second suction and blowing holes being opened on the movable feeding plate, the first suction and blowing holes and the second suction and blowing holes corresponding one-to-one, a blowing pipe fixing block being fixedly connected to the top surface of the fixed suction and blowing plate, a blowing pipe being installed on the blowing pipe fixing block, a plurality of blowing holes being opened on the blowing pipe, the blowing holes corresponding one-to-one with the first suction and blowing holes, a blowing interface being installed on the blowing pipe fixing block, and the blowing interface communicating with the blowing pipe.

[0015] This utility model has the following technical effects:

[0016] This utility model's negative pressure release mechanism is driven by a servo drive component. By utilizing a controller in conjunction with the operating angle of the stamping machine, it releases negative pressure at the appropriate time, ensuring the release of the adhesion force on the transversely cut fins. The servo drive assembly drives the suction and blowing component to promptly knock off the transversely cut fins in conjunction with the negative pressure release. This effectively avoids lag in negative pressure or material ejection during the ejection process, significantly improving the fin drop result. Furthermore, the negative pressure assembly and the air box are connected using flexible connectors, and the air box and the support are connected using a buffer space. This effectively avoids vibration of the air box caused by the negative pressure assembly, providing a solid foundation for the stability of the transversely cut fin drop. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the installation position of the suction device of this utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-section of the suction device of this utility model;

[0020] Figure 3 This is a schematic diagram of the rear cross-sectional structure of the bellows of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of part A in the image;

[0022] Figure 5 This is a side view of the bellows structure of this utility model;

[0023] Figure 6 This is a side view of the internal structure of the bellows of this utility model;

[0024] Figure 7 for Figure 6 A magnified view of part B in the image;

[0025] Figure 8 This is an isometric drawing of the bellows of this utility model;

[0026] Figure 9 This is a schematic diagram of the bellows structure from another perspective of the present invention;

[0027] Figure 10 This is a schematic diagram of the negative pressure assembly structure of this utility model.

[0028] Among them, 1. Suction and feeding assembly; 101. Negative pressure assembly; 102. Mounting bracket; 103. Upper flange; 104. Flexible connector; 105. Flexible tube; 106. Lower flange; 107. Negative pressure support flange; 108. Upper damping shock absorber; 109. Lower damping shock absorber; 110. Air box; 111. Damper servo motor; 112. Damper; 113. Damper synchronous pulley; 114. Damper synchronous belt; 115. Damper drive shaft; 116. Feeding servo motor; 117. Damper active synchronous pulley; 118. Air... 119. Door servo motor drive shaft; 120. Feeding servo motor drive sprocket; 121. Chain; 122. Feeding sprocket; 123. Feeding drive shaft; 124. Eccentric shaft block; 125. Bearing seat; 126. Support; 127. Fixed suction and blowing plate; 128. First suction and blowing hole; 129. Guide post; 120. Linear bearing; 121. Movable feeding plate; 122. Second suction and blowing hole; 2. Material receiving assembly; 3. Cross-cutting assembly; 4. Blowing pipe; 401. Blowing hole; 402. Blowing pipe fixing block; 403. Blowing interface. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1 to 8 As shown, this embodiment provides

[0032] A suction device for a fin production line includes a suction and feeding assembly 1 installed behind the cross-cutting assembly 3 of the fin production line, the suction and feeding assembly 1 being located above the receiving assembly 2.

[0033] The suction and material feeding assembly 1 includes a mounting bracket 102. A negative pressure assembly 101 is mounted on the mounting bracket 102. The suction end of the negative pressure assembly 101 is connected to a wind box 110 through a flexible connector 104. A servo drive assembly is mounted on the wind box 110. The servo drive assembly is connected to a suction and blowing material feeding component. The suction and blowing material feeding component is located on the bottom surface of the wind box 110. The wind box 110 is mounted on the bracket 102 through a buffer. Two opposite side walls of the wind box 110 are provided with a negative pressure release mechanism, which is driven by the servo drive component.

[0034] This utility model's negative pressure release mechanism is driven by a servo drive component. It utilizes a controller combined with the operating angle of the stamping machine to release negative pressure at the appropriate time, ensuring the release of the adhesion force on the transversely cut fins. The servo drive assembly drives the suction and blowing component to promptly knock off the transversely cut fins in conjunction with the negative pressure release. This effectively avoids lag in negative pressure or material ejection during the ejection process, significantly improving the fin drop result. Furthermore, the negative pressure assembly 101 and the air box 110 are connected by a flexible connector 104, and the air box 110 and the support 102 are connected by a buffer space. This effectively avoids vibration of the air box 110 caused by the negative pressure assembly 101, providing a good foundation for the stability of the transversely cut fin drop.

[0035] Further optimizing the design, the flexible connector 104 includes an upper flange 103 fixedly connected to the suction end of the negative pressure assembly 101, a flexible tube 105 fixedly connected to the bottom surface of the upper flange 103, a lower flange 106 fixedly connected to the bottom end of the flexible tube 105, the lower flange 106 fixedly connected to the top surface of the air box 110, the air box 110 being located below the bracket 102, the flexible tube 105 passing through the bracket 102, and a negative pressure support flange 107 fixedly connected to the upper flange 103, which is also fixedly connected to the top surface of the bracket 102.

[0036] The flexible tube 105 can be made of metal corrugated pipe. By using the flexible tube 105 to connect the air box 110 and the negative pressure assembly 101, the vibration of the negative pressure assembly 101 during operation can be reduced to be transmitted to the air box 110. In this way, the air box 110 can reduce some of the vibration, so that the vibration is not transmitted to the transversely cut fins, providing a stable foundation for the fins to fall off.

[0037] Further optimization of the scheme: the servo drive assembly includes a feeding servo motor 116 fixedly connected to the side wall of the air box 110, a feeding servo motor drive sprocket 119 shaft connected to the feeding servo motor 116 shaft, the feeding servo motor drive sprocket 119 being located inside the air box 110, a feeding transmission shaft 122 rotatably connected inside the air box 110, a feeding sprocket 121 shaft connected to the feeding transmission shaft 122 shaft, the feeding servo motor drive sprocket 119 and the feeding sprocket 121 being connected by a chain 120, and both ends of the feeding transmission shaft 122 passing through the air box 110 and shaft connected to an eccentric drive component.

[0038] Further optimization of the scheme: the eccentric drive component includes an eccentric shaft block 123 that is shaft-connected to the end of the feeding transmission shaft 122. A bearing is fixedly sleeved on the outside of the eccentric shaft block 123. The bearing is installed in a bearing seat 124. A support 125 is rotatably connected to the bottom of the bearing seat 124. The support 125 is fixedly connected to the suction and blowing feeding component. A guide post 127 is fixedly connected to the suction and blowing feeding component. A linear bearing 128 is slidably sleeved on the outside of the guide post 127. The linear bearing 128 is vertically arranged and fixedly connected to the air box 110.

[0039] As the eccentric block 123 rotates, the bearing seat 125 will also move eccentrically. At this time, under the action of the guide post 127 and the linear bearing 128, it can be ensured that the suction and blowing plate 126 only moves up and down. Since the material feeding servo motor 116 is used as the driving method, the rotation angle of the material feeding servo motor 116 can be effectively controlled and the negative pressure release mechanism can be used to control the cancellation of the negative pressure of the negative pressure assembly 101 to promptly knock off the transversely cut fins.

[0040] The scheme is further optimized. The negative pressure release mechanism includes dampers 112 symmetrically arranged on both sides of the air box 110. A damper drive shaft 115 is fixedly connected to the center line of the damper 112. The ends of the damper drive shaft 115 are rotatably connected to both ends of the air box 110. The ends of the two damper drive shafts 115 are axially connected to damper synchronous pulleys 113.

[0041] The servo drive component includes a damper servo motor 111 installed at the end of the air box 110. The damper servo motor 111 is shaft-connected to a damper servo motor drive shaft 118. The damper servo motor drive shaft 118 is rotatably connected to both ends of the air box 110. The end of the damper servo motor drive shaft 118 is shaft-connected to a damper active synchronous pulley 117. The damper active synchronous pulley 117 and the two damper synchronous pulleys 113 are fitted with the same damper synchronous belt 114.

[0042] By using the damper servo motor 111 to drive the two damper synchronous pulleys 113 to rotate synchronously, the two dampers 112 can be opened and closed simultaneously. In addition, the rotation angle of the damper servo motor 111 and the rotation angle of the feeding servo motor 116 can be coordinated to achieve the disappearance of negative pressure, and the suction blowing feeding plate 1261 can promptly knock off the transversely cut fins, so that the finished fins fall into the receiving assembly 2.

[0043] The design is further optimized so that the buffer components include an upper damping block 108 and a lower damping block 109. The upper damping block 108 is located on the top surface of the mounting bracket 102, and the lower damping block 109 is located between the mounting bracket 102 and the air box 110. The upper damping block 108, the lower damping block 109, the mounting bracket 102, and the air box 110 are connected together by bolts.

[0044] The upper damping damping block 108 and the lower damping damping block 109 can be made of nylon rods with a certain degree of elasticity. The bellows 110 and the mounting bracket 102 are connected by the upper damping damping block 108 and the lower damping damping block 109, which can reduce the vibration transmitted from the negative pressure assembly 101 to the bellows 110, further reduce the vibration force of the bellows 110 on the fins, and provide a stable foundation for the fins to fall off.

[0045] The design is further optimized so that the suction and blowing material component includes a fixed suction and blowing plate 126 fixedly connected to the bottom surface of the air box 110, a movable material blowing plate 129 movably embedded in the fixed suction and blowing plate 126, the movable material blowing plate 129 being fixedly connected to the support 125, a guide post 127 being fixedly connected to the movable material blowing plate 129, a plurality of first suction and blowing air holes 1261 being opened on the fixed suction and blowing plate 126, and a plurality of second suction and blowing air holes being opened on the movable material blowing plate 129. 1291, the first suction and blowing hole 1261 and the second suction and blowing hole 1291 correspond one-to-one. A blowing pipe fixing block 402 is fixedly connected to the top surface of the fixed suction and blowing plate 126. A blowing pipe 4 is installed on the blowing pipe fixing block 402. A plurality of blowing holes 401 are opened on the blowing pipe 4. The blowing holes 401 correspond one-to-one with the first suction and blowing hole 1261. A blowing interface 403 is installed on the blowing pipe fixing block 402. The blowing interface 403 is connected to the blowing pipe 4.

[0046] When the material is being sucked up, the damper 112 is closed. Under the negative pressure generated by the negative pressure assembly 101, the fins are adsorbed onto the bottom surface of the fixed suction plate 126 and the movable discharge plate 129 through the cooperation of the first suction and blowing hole 1261 and the second suction and blowing hole 1291. When the fins need to be knocked off, the discharge servo motor 116 rotates, driving the discharge transmission shaft 122 to rotate. At this time, the eccentric shaft block 123 pushes the support 125 to move, which in turn pushes the movable discharge plate 129 to move downward. The blowing interface 403 is also connected to a blowing air pump. While the movable discharge plate 129 moves downward, the blowing air pump supplies air into the blowing pipe 4. The fins are blown off by the blowing hole 401, the first suction and blowing hole 1261 and the second suction and blowing hole 1291, further enhancing the fin falling effect.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A suction device for a finned production line, characterized in that, Includes a suction and feeding assembly (1) installed behind the cross-cutting assembly (3) in the fin production line, the suction and feeding assembly (1) being located above the receiving assembly (2); The suction and material feeding assembly (1) includes a mounting bracket (102). A negative pressure assembly (101) is mounted on the mounting bracket (102). The suction end of the negative pressure assembly (101) is connected to a wind box (110) through a flexible connector (104). A servo drive assembly is mounted on the wind box (110). The servo drive assembly is connected to a suction and blowing material feeding component. The suction and blowing material feeding component is located on the bottom surface of the wind box (110). The wind box (110) is mounted on the bracket (102) through a buffer. Two opposite side walls of the wind box (110) are provided with a negative pressure release mechanism. The negative pressure release mechanism is driven by the servo drive component.

2. The suction device for a finned production line according to claim 1, characterized in that, The flexible connector (104) includes an upper flange (103) fixedly connected to the suction end of the negative pressure assembly (101), a flexible tube (105) fixedly connected to the bottom surface of the upper flange (103), a lower flange (106) fixedly connected to the bottom end of the flexible tube (105), the lower flange (106) fixedly connected to the top surface of the air box (110), the air box (110) being located below the bracket (102), the flexible tube (105) passing through the bracket (102), and a negative pressure support flange (107) fixedly connected to the upper flange (103), the negative pressure support flange (107) fixedly connected to the top surface of the bracket (102).

3. The suction device for a finned production line according to claim 1, characterized in that, The servo drive assembly includes a feeding servo motor (116) fixedly connected to the side wall of the bellows (110). The feeding servo motor (116) is shaft-connected to a feeding servo motor drive sprocket (119). The feeding servo motor drive sprocket (119) is located inside the bellows (110). A feeding transmission shaft (122) is rotatably connected inside the bellows (110). A feeding sprocket (121) is shaft-connected to the feeding transmission shaft (122). The feeding servo motor drive sprocket (119) and the feeding sprocket (121) are connected by a chain (120). Both ends of the feeding transmission shaft (122) extend out of the bellows (110) and are shaft-connected to an eccentric drive component.

4. The suction device for a finned production line according to claim 3, characterized in that, The eccentric drive component includes an eccentric shaft block (123) axially connected to the end of the feeding transmission shaft (122). A bearing is fixedly sleeved on the outer side of the eccentric shaft block (123). The bearing is installed in a bearing seat (124). A support (125) is rotatably connected to the bottom of the bearing seat (124). The support (125) is fixedly connected to the suction and blowing feeding component. A guide post (127) is fixedly connected to the suction and blowing feeding component. A linear bearing (128) is slidably sleeved on the outer side of the guide post (127). The linear bearing (128) is vertically arranged and fixedly connected to the air box (110).

5. The suction device for a finned production line according to claim 1, characterized in that, The negative pressure release mechanism includes dampers (112) symmetrically arranged on both sides of the air box (110). A damper drive shaft (115) is fixedly connected to the center line of the damper (112). The ends of the damper drive shaft (115) are rotatably connected to both ends of the air box (110). The ends of the two damper drive shafts (115) are all axially connected to damper synchronous pulleys (113). The servo drive component includes a damper servo motor (111) installed at the end of the air box (110). The damper servo motor (111) is shaft-connected to a damper servo motor drive shaft (118). The damper servo motor drive shaft (118) is rotatably connected to both ends of the air box (110). The end of the damper servo motor drive shaft (118) is shaft-connected to a damper active synchronous pulley (117). The damper active synchronous pulley (117) and the two damper synchronous pulleys (113) are fitted with the same damper synchronous belt (114).

6. The suction device for a finned production line according to claim 1, characterized in that, The buffer includes an upper damping block (108) and a lower damping block (109). The upper damping block (108) is located on the top surface of the mounting bracket (102), and the lower damping block (109) is located between the mounting bracket (102) and the air box (110). The upper damping block (108), the lower damping block (109), the mounting bracket (102), and the air box (110) are connected together by bolts.

7. The suction device for a finned production line according to claim 4, characterized in that, The suction and blowing material feeding component includes a fixed suction and blowing plate (126) fixedly connected to the bottom surface of the air box (110). A movable feeding plate (129) is movably embedded in the fixed suction and blowing plate (126). The movable feeding plate (129) is fixedly connected to the support (125). The guide post (127) is fixedly connected to the movable feeding plate (129). The fixed suction and blowing plate (126) has a plurality of first suction and blowing holes (1261), and the movable feeding plate (129) has a plurality of second suction and blowing holes (1291). The first suction and blowing hole (1261) and the second suction and blowing hole (1291) are one-to-one. The top surface of the fixed suction and blowing plate (126) is fixedly connected to the blowing pipe fixing block (402). The blowing pipe (4) is installed on the blowing pipe fixing block (402). The blowing pipe (4) has a plurality of blowing holes (401). The blowing holes (401) are one-to-one with the first suction and blowing hole (1261). The blowing pipe fixing block (402) is equipped with a blowing interface (403). The blowing interface (403) is connected to the blowing pipe (4).

Images