CN216150907U - Feeding device for metal strip - Google Patents
Feeding device for metal strip Download PDFInfo
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- CN216150907U CN216150907U CN202122297646.9U CN202122297646U CN216150907U CN 216150907 U CN216150907 U CN 216150907U CN 202122297646 U CN202122297646 U CN 202122297646U CN 216150907 U CN216150907 U CN 216150907U
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- pin
- metal strip
- overrun
- preventing pin
- overrun preventing
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Abstract
The utility model provides a feeding device for a metal strip. The feeding device prevents the metal strip from being overrun. The feeding device comprises: an overrun preventing pin (62), wherein the overrun preventing pin (62) is arranged below the metal strip-shaped body (19), and when the metal strip-shaped body (19) finishes moving relative to the feeding direction by a preset distance, the top end part of the overrun preventing pin (62) is inserted into the through hole (13) or the gap part of the metal strip-shaped body (19) in order to prevent overrun of the metal strip-shaped body (19); and overrun-preventing-pin vertical-movement mechanisms (66, 88) which, when the reciprocating block (51) moves in the feed direction, lower the overrun preventing pin (62), and when the reciprocating block (51) moves in the direction opposite to the feed direction, raise the overrun preventing pin (62).
Description
Technical Field
The present invention relates to a feeding device for feeding a metal strip in a predetermined direction.
Background
A heat exchanger such as a refrigeration apparatus is configured by stacking a plurality of heat exchanger fins, and the heat exchanger fins are provided with through holes into which a plurality of heat supply exchange tubes are inserted, or with notches into which a plurality of flat heat exchange tubes are inserted.
Fig. 9 shows an apparatus for manufacturing a heat exchanger fin in which a plurality of through holes into which heat exchange tubes are inserted are formed.
An apparatus for manufacturing a heat exchanger fin is provided with an uncoiler 12 around which a thin plate 10 made of metal such as aluminum is coiled. A metal thin plate 10 drawn out from an uncoiler 12 is inserted into an oil applying device 16, and processing oil is attached to the surface of the thin plate 10 and supplied to a die device 20 provided in a press device 18 via a pinch roll 14.
The die apparatus 20 is internally provided with an upper die set 22 capable of moving up and down and a lower die set 24 in a stationary state. In the metal thin plate 10 having passed through the die device 20, a plurality of flanged through holes 13 (in the present specification, simply referred to as through holes in some cases) are formed at predetermined intervals in a predetermined direction: a flange having a predetermined height is formed around the through hole.
The thin plate obtained by processing the through hole 13 and the like in the thin metal plate 10 by the die 20 is referred to as a metal strip 19.
Here, the processed metal strip 19 is formed in a state where a plurality of heat exchanger fins as products are arranged in the width direction.
Therefore, an inter-row slit device 25 for cutting the metal strip 19 into a product width is provided at a position downstream of the die device 20.
A feeding device 26 for intermittently feeding the metal strip 19 is provided between the die device 20 and the inter-row slit device 25.
The feeding device 26 intermittently feeds the metal strip 19 when the upper die set 22 and the lower die set 24 of the die apparatus 20 are closed, and does not feed the metal strip 19 when the upper die set 22 and the lower die set 24 are opened.
The metal strip 19 of the product width formed by the inter-row slit apparatus 25 is intermittently fed to the cutter 27 by the feeding apparatus 26. The metal strip 19 having the product width is cut into a predetermined product length by a cutter 27, and formed into a heat exchanger fin 28 as a production target product.
The heat exchanger fin 28 thus formed is housed in the stacker 30. A plurality of pins 31 are vertically provided in the stacker 30, and the heat exchanger fins 28 are stacked and held in the stacker 30 by inserting the pins 31 into the through holes 13 formed in the heat exchanger fins 28.
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
In the case of intermittently conveying the metal strip by the feeding device, the metal strip needs to be completely stopped at a predetermined stop position after the metal strip is conveyed by a predetermined distance.
Assuming that the metal strip is stopped beyond the stop position after the conveyance (overrun (japanese: オーバーラン)), there are the following problems in such a case: the machining by the die device is performed at a position other than the original position to be machined, and thus a normal fin for a heat exchanger cannot be manufactured.
In view of the above, it is an object of the present invention to provide a feeding device that prevents the occurrence of overrun of the metal strip.
Means for solving the problems
According to a feeding device of the present invention, there is provided a feeding device for intermittently feeding a metal strip having a plurality of through holes or notches a predetermined distance in a predetermined direction, the feeding device comprising: a feed pin disposed below the metal strip and having a tip end portion insertable into the through hole or the notch of the metal strip; a reciprocating block to which the feed pin is attached so as to be movable up and down, the reciprocating block reciprocating the feed pin in a feeding direction of the metal strip and in a direction opposite to the feeding direction; a feed pin up-and-down movement mechanism that raises the feed pin when the reciprocating block moves in the feed direction, and lowers the feed pin when the reciprocating block moves in the direction opposite to the feed direction; an overrun preventing pin disposed below the metal strip, the overrun preventing pin having a tip end portion inserted into the through hole or the notch portion of the metal strip to prevent overrun of the metal strip when movement of the metal strip in the feeding direction by a predetermined distance is completed; and an overrun preventing pin up-and-down moving mechanism that lowers the overrun preventing pin when the reciprocating block moves in the feeding direction, and raises the overrun preventing pin when the reciprocating block moves in the direction opposite to the feeding direction.
With this configuration, when the conveyance of the metal strip by the predetermined distance is completed, the overrun preventing pin can be raised from below the metal strip and enter the through hole or the notch portion to stop the metal strip, thereby preventing overrun.
In addition, the feeding device may be characterized in that the overrun preventing pin includes: a pin main body having a diameter that can enter the through hole or the notch portion of the metal strip; and a flange portion formed at a lower portion of the pin body to have a diameter larger than that of the pin body, the overrun preventing pin up-down movement mechanism including: a biasing member that biases the overrun preventing pin upward; and an air supply device for supplying air to the upper surface of the flange portion to lower the overrun preventing pin against the urging force of the urging member.
According to this configuration, the overrun preventing pin is constantly urged in the upward direction by the urging member, and is lowered by air when being lowered from the metal strip. In this way, the overrun preventing pin is moved up and down by the urging member and the air, whereby the up-down movement mechanism can be downsized.
In the feeding device, the overrun preventing pin may be provided in a fixed block disposed on either one of an upstream side and a downstream side or both of the upstream side and the downstream side in a moving direction of the reciprocating block.
In the feeding device, a vertical movement space may be formed in the fixed block, the overrun preventing pin may be disposed in the vertical movement space so as to be movable vertically, the vertical movement space may have a large diameter space in which the flange portion is movable vertically within a predetermined range, an air supply space may be formed above the large diameter space, and air from the air supply device may be supplied to the air supply space.
In addition, the feeding device may be characterized in that the overrun preventing pin includes: a pin main body having a diameter that can enter the through hole or the notch portion of the metal strip; and a flange portion formed at a lower portion of the pin body to have a diameter larger than that of the pin body, the overrun preventing pin up-down movement mechanism including: a biasing member that biases the overrun preventing pin downward; and an air supply device that supplies air to a lower surface of the flange portion and raises the overrun preventing pin against an urging force of the urging member.
Further, the fixed block may be provided with a vertical movement space in which the overrun preventing pin is disposed so as to be vertically movable, the vertical movement space may have a large diameter space in which the flange portion is vertically movable within a predetermined range, an air supply space may be formed below the large diameter space, and air from the air supply device may be supplied to the air supply space.
Effect of the utility model
According to the feeding device of the present invention, the metal strip can be prevented from being overrun, and the processing of the through hole, the notch portion, and the like can be performed at a precise position of the metal thin plate.
Drawings
Fig. 1 is an explanatory view showing the overall configuration of a heat exchanger fin manufacturing apparatus.
Fig. 2 is a plan view showing a partial structure of the feeding device.
Fig. 3 is an explanatory diagram of the operation of the reciprocating block.
Fig. 4 is an explanatory diagram of the operation of the reciprocating block.
Fig. 5 is a plan view of the fixing block.
Fig. 6 is a side view of the fixing block.
Fig. 7 is a front view of the fixing block.
Fig. 8A to 8D are explanatory views of the operation of the overrun preventing pin.
Fig. 9 is an explanatory diagram showing the overall configuration of a conventional heat exchanger fin manufacturing apparatus.
Detailed Description
The following describes a feeding device according to the present embodiment with reference to the drawings.
First, the overall configuration of a heat exchanger fin manufacturing apparatus using a feeding apparatus according to the present embodiment will be described with reference to fig. 1. Here, the same components as those described in the conventional art are denoted by the same reference numerals, and the description thereof may be omitted.
In the heat exchanger fin manufacturing apparatus of the present embodiment, the feeding device 50 that feeds the metal strip 19 in the conveying direction is provided at both positions between the die device 20 and the inter-row slit device 25 and on the upstream side of the cutter 27.
The feeder 50 is provided with a reciprocating block 51 that reciprocates in the conveying direction and in the direction opposite to the conveying direction, and the reciprocating block 51 is provided with a feed pin 55 that is driven in the up-down direction.
The feed pin 55 is shaped to be able to enter the through hole 13 formed in the metal strip 19. The reciprocating block 51 moves in the conveying direction by the feed pin 55 entering the through hole 13, thereby pulling the metal strip 19 to convey it.
A fixed block 60 that does not move is disposed on the upstream side of the reciprocating block 51.
The fixing block 60 is provided with an overrun preventing pin 62 driven in the up-down direction.
The overrun preventing pin 62 is shaped to be able to enter the through hole 13 formed in the metal strip 19. When the feeding pins 55 complete the conveyance of the metal strip 19 by a predetermined distance, the overrun preventing pins 62 are prevented from entering the through holes 13, whereby the metal strip 19 is stopped and does not move even if the metal strip 19 attempts to move in the conveyance direction by inertia.
In this way, the metal strip 19 is prevented from being overrun, and the metal strip 19 is reliably stopped at a predetermined stop position, so that the metal strip can be processed at a precise position by the die device 20.
In addition, in the present embodiment, the up-and-down movement of the overrun preventing pin 62 in the fixed block 60 is performed by: the overrun preventing pin 62 is lifted by the urging force of an urging member (e.g., a spring) at the time of lifting, and is pressed down by air against the urging force of the urging member at the time of lowering.
That is, an air supply device 66 such as an air compressor is connected to the fixed block 60, and the air supply device 66 supplies air into the fixed block 60.
The air supply device 66 is connected to the controller 64 so that the operation of the controller 64 can be controlled. The control unit 64 controls a solenoid valve (not shown) provided between the air supply device 66 and the fixed block 60 to supply air to the fixed block 60 at a predetermined timing.
Fig. 2 is a partial plan view of the feeder device, and fig. 3 to 4 are explanatory views of the operation of the reciprocating block constituting the feeder device.
The metal strip 19 shown in fig. 2 is substantially long in the conveyance direction, but only a part thereof in the longitudinal direction is omitted.
The metal strip 19 shown in fig. 2 is shown in a state in which the metal strip 19 is formed to have a product width by passing through the inter-row slit device 25, but the present invention can also be applied to the metal strip 19 before passing through the inter-row slit device 25.
The feeding device 50 includes a reciprocating block 51 that reciprocates in the conveying direction of the metal strip 19, a fixed block 60 provided on the conveying direction upstream side of the reciprocating block 51, and a fixed block 70 provided on the conveying direction downstream side of the reciprocating block 51.
The reciprocating block 51 is supported movably in the conveying direction by a guide shaft 72, and the guide shaft 72 is fixed between the fixed block 60 and the fixed block 70 so that the axis thereof extends in the conveying direction.
The reciprocating block 51 reciprocates between the fixed block 60 and the fixed block 70 along the guide shaft 72.
The driving means for reciprocating the reciprocating block 51 of the present embodiment uses the press device 18 as a driving source. An eccentric pin (not shown) is provided to a crank (not shown) that rotates in synchronization with the press device 18, and a connecting rod (not shown) is connected to the eccentric pin. The connecting rod reciprocates in the vertical direction by rotation of the crank, and the rod 40 is connected to the connecting rod via a link mechanism. The link mechanism converts the reciprocating motion of the link rod in the up-down direction into the reciprocating motion of the rod 40 in the horizontal direction.
The rod 40 is coupled with the reciprocating block 51, and the rod 40 reciprocates in the horizontal direction, whereby the reciprocating block 51 reciprocates.
Further, the driving means for reciprocating the reciprocating block 51 is not limited to the above-described structure.
Fig. 3 to 4 show the conveying operation of the metal strip 19 by the reciprocating block 51 and the feed pin 55.
A feed pin 55 is disposed on the upper surface of the reciprocating block 51 so as to protrude upward. The feed pin 55 is formed to have a diameter such that the tip end thereof can enter the through hole 13 of the metal strip 19. The tip end of the feed pin 55 is formed as an inclined surface that gradually descends toward the upstream side in the conveying direction.
The lower portion of the feed pin 55 is accommodated in an accommodating hole 53 formed in the reciprocating block 51, and a spring 52 is provided between the lower end portion of the feed pin 55 and the bottom surface of the accommodating hole 53. The feed pin 55 is always biased upward by the spring 52.
As shown in fig. 3, when the reciprocating block 51 starts to convey the metal strip 19, the reciprocating block 51 is present at the conveyance start position, the feed pin 55 is raised by the urging force of the spring 52, and the feed pin 55 enters the through hole 13 of the metal strip 19.
When the reciprocating block 51 moves in the conveying direction, the feed pin 55 pulls the metal strip 19 to convey it.
When the reciprocating block 51 reaches the conveyance ending position, as shown in fig. 4, the reciprocating block 51 returns in the direction of the conveyance starting position. Then, the inclined surface of the tip end portion of the feed pin 55 gradually descends along the wall surface of the through hole 13 of the metal strip 19 against the urging force of the spring 52, and the feed pin 55 is pulled out from the through hole 13 of the metal strip 19.
In a state where the feed pin 55 is pulled out from the through hole 13, the reciprocating block 51 is returned in the conveyance starting position direction.
Then, the state of fig. 3 is restored, the feed pin 55 is raised by the biasing force of the spring 52, and the feed pin 55 enters the through hole 13 of the metal strip 19.
Fig. 5 shows a plan view of the fixed block, fig. 6 shows a side view of the fixed block, and fig. 7 shows a front view of the fixed block as viewed from the conveying direction.
The plurality of overrun preventing pins 62 are provided to the fixed block 60 so as to protrude upward.
In the present embodiment, the overrun preventing pin 62 is provided on the fixed block 60 on the upstream side in the conveying direction of the reciprocating block 51, but the overrun preventing pin may be provided on the fixed block 70 on the downstream side in the conveying direction of the reciprocating block 51, and the overrun preventing pin may be provided on both the fixed block 60 on the upstream side in the conveying direction of the reciprocating block 51 and the fixed block 70 on the downstream side in the conveying direction.
The overrun preventing pin 62 is formed in a shape such that the tip end portion thereof can enter the through hole 13 of the metal strip 19, and when the reciprocating block 51 finishes the conveyance at the conveyance completion position, the overrun preventing pin 62 enters the through hole 13 of the metal strip 19, thereby preventing overrun of the metal strip 19.
The overrun preventing pin 62 includes a pin body 78 and a flange portion 77 having a diameter larger than that of the pin body 78 at a lower portion of the pin body 78. The tip end portion of the pin body 78 is formed as an inclined surface 76 inclined downward toward the conveying direction side.
The overrun preventing pin 62 is disposed in a vertical movement space 80 formed in the fixed block 60. The fixing block 60 is composed of an upper block 82 that receives the pin body 78 and a lower block 84 that forms a large-diameter space 86 that receives the flange portion 77.
The overrun preventing pin 62 is always biased upward by a spring 88 as a biasing member. The spring 88 is disposed between the inside of the overrun preventing pin 62 and the bottom surface 89 of the upward and downward movement space 80.
A large-diameter space 86 for accommodating the flange portion 77 is formed on the upper surface of the lower block 84, and the flange portion 77 is disposed so as to be movable up and down in the large-diameter space 86.
An air supply space 90 that is open to the upper surface of the flange portion 77 is formed in the lower surface of the upper block 82. The diameter of the air supply space 90 is smaller than that of the flange portion 77, and the flange portion 77 is configured not to rise into the air supply space 90.
As shown in fig. 5, the air supply spaces 90 of the respective overrun preventing pins 62 are connected by an air line 75 formed in the fixed block 60. In addition, a connection joint 74 for connecting an air line 75 inside the fixed block 60 to the air supply device 66 is provided at the fixed block 60. An air pipe (not shown) is provided between the connection joint 74 and the air supply device 66 via a solenoid valve (not shown), and air is supplied from the air supply device 66 to the air pipe 75 by opening and closing the solenoid valve.
Fig. 8A to 8D show the operation of the overrun preventing pin.
Fig. 8A shows a state immediately before the start of the conveyance of the metal strip 19. Immediately before the start of the conveyance of the metal strip 19, the controller 64 opens a solenoid valve, not shown, and supplies air from the air supply device 66 to the air supply space 90 via the air line 75.
Then, the flange portion 77 of the overrun preventing pin 62 receives the pressure of the air, and the overrun preventing pin 62 is lowered against the urging force of the spring 88.
Fig. 8B shows a state in the middle of conveyance of the metal strip 19. During the conveyance of the metal strip 19, the control unit 64 closes the electromagnetic valve, not shown, at a predetermined timing before the end of the conveyance, and stops the supply of air from the air supply device 66 to the air supply space 90. The overrun preventing pin 62 after the air supply is stopped starts to rise by the urging force of the spring 88.
Fig. 8C shows a state immediately before the end of the conveyance of the metal strip 19.
Since the tip end portion of the overrun preventing pin 62 is formed with the inclined surface 76 positioned upstream in the conveying direction, the portion of the tip end portion of the overrun preventing pin 62 positioned upstream in the conveying direction first enters the through hole 13 of the metal strip 19 being conveyed.
Fig. 8D shows a state after the conveyance of the metal strip 19 is completed. Since the conveyance of the metal strip 19 is completed and the tip end portion of the overrun preventing pin 62 completely enters the through hole 13 of the metal strip 19, the overrun preventing pin 62 completely stops the movement of the metal strip 19 in the conveyance direction, and overrun of the metal strip 19 is prevented.
The above-described embodiments have explained the case where the round tube is used as the heat exchange tube and the metal strip having the through holes into which the round tube is inserted is used as the conveyance target.
However, the feeder apparatus according to the present invention is not limited to the case where the metal strip having the through-holes formed therein is to be conveyed, and may be a case where the flat tubes are heat exchange tubes and the metal strip having the notches formed therein into which the flat tubes are inserted is to be conveyed. In this case, the feed pin and the overrun prevention pin may be shaped to be able to enter the notch portion. In addition, the up-and-down movement of the overrun preventing pin in the fixed block may be performed by: the stopper is lowered by an urging force of an urging member (e.g., a spring) when it is lowered, and the overrun preventing pin is raised by air against the urging force of the urging member when it is raised.
Claims (8)
1. A feeding device for intermittently feeding a metal strip having a plurality of through holes or notches a predetermined distance in a predetermined direction,
the feeding device comprises:
a feed pin disposed below the metal strip and having a tip end portion insertable into the through hole or the notch of the metal strip;
a reciprocating block to which the feed pin is attached so as to be movable up and down, the reciprocating block reciprocating the feed pin in a feeding direction of the metal strip and in a direction opposite to the feeding direction;
a feed pin up-and-down movement mechanism that raises the feed pin when the reciprocating block moves in the feed direction, and lowers the feed pin when the reciprocating block moves in the direction opposite to the feed direction;
an overrun preventing pin disposed below the metal strip, the overrun preventing pin having a tip portion inserted into the through hole or the notch portion of the metal strip to prevent overrun of the metal strip; and
and an overrun preventing pin up-and-down moving mechanism configured to lower the overrun preventing pin when the reciprocating block moves in the feeding direction, and to raise the overrun preventing pin when the reciprocating block moves in the direction opposite to the feeding direction.
2. The feeding device of claim 1,
the overrun preventing pin has:
a pin main body having a diameter that can enter the through hole or the notch portion of the metal strip; and a flange portion formed at a lower portion of the pin body to have a diameter larger than that of the pin body,
the over-limit prevention pin up-and-down movement mechanism has:
a biasing member that biases the overrun preventing pin upward; and an air supply device for supplying air to the upper surface of the flange portion to lower the overrun preventing pin against the urging force of the urging member.
3. The feeding device of claim 1,
the overrun preventing pin is provided in a fixed block disposed on either one of an upstream side and a downstream side or both of the upstream side and the downstream side in a moving direction of the reciprocating block.
4. The feeding device of claim 2,
the overrun preventing pin is provided in a fixed block disposed on either one of an upstream side and a downstream side or both of the upstream side and the downstream side in a moving direction of the reciprocating block.
5. The feeding device of claim 4,
a vertical movement space is formed in the fixed block, the overrun preventing pin is disposed in the vertical movement space so as to be movable vertically,
the vertical movement space has a large diameter space in which the flange portion can move vertically within a predetermined range, and an air supply space is formed above the large diameter space and supplied with air from the air supply device.
6. The feeding device of claim 1,
the overrun preventing pin has:
a pin main body having a diameter that can enter the through hole or the notch portion of the metal strip; and a flange portion formed at a lower portion of the pin body to have a diameter larger than that of the pin body,
the over-limit prevention pin up-and-down movement mechanism has:
a biasing member that biases the overrun preventing pin downward; and an air supply device that supplies air to a lower surface of the flange portion and raises the overrun preventing pin against an urging force of the urging member.
7. The feeding device of claim 6,
the overrun preventing pin is provided in a fixed block disposed on either one of an upstream side and a downstream side or both of the upstream side and the downstream side in a moving direction of the reciprocating block.
8. The feeding device of claim 7,
a vertical movement space is formed in the fixed block, the overrun preventing pin is disposed in the vertical movement space so as to be movable vertically,
the vertical movement space has a large diameter space in which the flange portion can move vertically within a predetermined range, and an air supply space is formed below the large diameter space and supplied with air from the air supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297646.9U CN216150907U (en) | 2021-09-23 | 2021-09-23 | Feeding device for metal strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297646.9U CN216150907U (en) | 2021-09-23 | 2021-09-23 | Feeding device for metal strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216150907U true CN216150907U (en) | 2022-04-01 |
Family
ID=80853598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122297646.9U Active CN216150907U (en) | 2021-09-23 | 2021-09-23 | Feeding device for metal strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216150907U (en) |
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2021
- 2021-09-23 CN CN202122297646.9U patent/CN216150907U/en active Active
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