A fin stacking device

Abstract

A fin stacking device comprises a collecting needle, a fin supporting plate, a push rod and a driver, the collecting needle is provided with a space for accommodating the push rod, a plurality of ejection holes are arranged on the upper part of the space in a circumferential direction, and the tail end of the collecting needle is fixed vertically on the fin supporting plate; the push rod is arranged in the space of the collecting needle, the head of the push rod is provided with a plurality of elastic members corresponding to the ejection holes, the tail of the push rod is connected with the driver and is driven by the driver to move in the space, the push rod moves upward to the ejection holes, the elastic members are pushed away to extend out of the ejection holes, and the push rod moves downward to make the elastic members retract into the space; and the driver is fixed on the fin supporting plate or the needle. The fin stacking device can perform fin layering and stacking, can automatically separate the fin quantity of a fin layer according to requirements, is favorable for the automation of heat exchanger workpiece production, and does not need manual counting and fin layering, so that the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to a fin collecting device. Background Technology

[0002] After the fin strip is stamped into fins by a punch press, it is generally made into fins as follows: Figure 1 The fin stacking device shown stacks fins for use in the next process. In the figure, 1 is the collecting needle, 2 is the fin, and 3 is the fin support plate. Because the fin strip enters the punch press as a whole during stamping, and after being longitudinally cut, it falls onto the fin stacking device, the height of each row of fins is the same.

[0003] In the production of heat exchangers, fins are taken out in rows, followed by actions such as inserting U-tubes and expanding tubes. Since most heat exchanger components require two rows of fins with a height difference, it is necessary to manually remove the corresponding number of fins from one row of the fin stack and place them on the other row to meet the height difference requirement. However, manually removing fins relies solely on experience, making it difficult to remove the correct number at once, thus being quite time-consuming. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a fin stacking device that can stack fins in layers as needed.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A fin stacking device includes a collecting pin, a fin support plate, a push rod, and a driver. The collecting pin has a space in the middle to accommodate the push rod. Several pop-out holes are arranged along the circumference of the upper part of the space. The tail end is vertically fixed to the fin support plate. The push rod is placed in the space of the collecting pin. Its head is provided with several elastic elements corresponding to the pop-out holes. The tail end is connected to the driver and is driven by the driver to move within the space. The push rod moves upward to the pop-out holes, where the elastic elements spring open and extend out of the pop-out holes. It moves downward to the pop-out holes, where the elastic elements retract back into the space. The driver is fixed to the fin support plate or the push pin.

[0007] Even better, a push plate is provided below the fin support plate, and the lower end of the push rod is fixed on the push plate. The push plate is connected to the driver and is driven to move by the driver. In this way, a single driver can drive multiple push rods through the push plate, saving costs.

[0008] More specifically, the actuator is a cylinder, which is fixed to the fin support plate by a mounting plate. The piston rod of the cylinder is connected to the tail of the push rod. The push rod is pushed upward by the cylinder. After the upper end of the elastic element reaches the ejection hole, it is not restricted by the outer shell of the collecting needle and springs outward to expose the ejection hole. Therefore, the fin can be supported by the elastic body that opens at the upper end of the push rod.

[0009] Better, the elastic bodies of the push rod are uniformly distributed along the circumference, the lower end of the elastic body is fixed with the push rod, and the upper end is a free end, and there is a longitudinal gap between each elastic body, so that the elastic element can expand radially when not limited, and can retract radially when limited. This push rod structure is simple and easy to manufacture.

[0010] Better, the upper end of the elastic body is a horizontal plane, so that the area of the supporting fin is larger and the support is more convenient.

[0011] Better, when the upper end of the elastic body is expanded, part of the horizontal plane is still in space, so that the upper end of the elastic body is limited by the through hole and cannot be retracted.

[0012] Better, the fin stacking device is placed side by side with the ordinary fin stacking device, so that each column of fins can be stacked to the required height for workpiece processing, thereby faster completing the stacking of the workpiece.

[0013] Compared with the prior art, the advantages of the present application are that: by setting a matching push rod in the collecting needle, the push rod head supports the fins as needed, so that the entire fin placement column can be layered and stacked, and the number of fin layers can be automatically separated according to requirements, thereby facilitating the automation of heat exchanger workpiece production, and eliminating the need for manual counting and fin layering, thereby improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural diagram of a fin stack (fin stacking device).

[0015] Figure 2 It is a structural diagram of a fin stacking device according to an embodiment of the present application.

[0016] Figure 3 It is Figure 2 A-A sectional view.

[0017] Figure 4 It is a top view of the push rod of the fin stacking device according to an embodiment of the present application.

[0018] Figure 5 It is Figure 4 B-B sectional view.

[0019] Figure 6 It is Figure 3 An enlarged view of part I.

[0020] Figure 7 It is Figure 6 A state diagram when the upper elastic element of the push rod 4 is retracted. DETAILED DESCRIPTION

[0021] The application will be described in further detail below with reference to the accompanying drawings.

[0022] For the convenience of description, the direction of the row is set as the B direction and the direction of the column is set as the C direction, but the B and C directions do not limit the scope of the application, and the description can also change according to the change of the view direction.

[0023] As shown in Figure 2 , 3 , 6, the fin stacking device comprises a collecting needle 1', a supporting plate 3, a push rod 4, a mounting frame 5, a gas cylinder 6 and a push plate 7.

[0024] The lower end of the collecting needle 1' is vertically installed on the supporting plate 3, and a space 11 for accommodating the push rod 4 is arranged in the middle, and a plurality of notches 101 are arranged on the outer wall of the upper part of the space 11 in a circumferential direction, and two notches 101 are arranged in the embodiment.

[0025] The fin 2 has a through hole 21, and the collecting needle 1' can pass through the through hole 21 on the fin 2, and the fin 2 falls on the supporting plate 3 and is supported by the supporting plate 3, and in the embodiment, two collecting needles 1 or 1' are arranged for each column of fins 2, and a plurality of columns of fins 2 are arranged together, and the collecting needles 1 and 1' are arranged in sequence according to the column.

[0026] As shown in Figure 4 , 5 The push rod 4 passes through the hollow part of the collecting needle 1', and the end part has elastic elements 401 corresponding to the notches 101, and two elastic elements 401 are arranged symmetrically in the embodiment, the lower end of the elastic element 401 is fixed on the main body of the push rod 4, and the upper end is a free end, and a longitudinal gap 403 is arranged between the elastic elements 401, so that the elastic elements 401 can be radially expanded when not limited, and can be radially retracted when limited.

[0027] Figure 4 The top end of the elastic element 401 is also provided with a horizontal support part 402, and the horizontal support part 402 can increase the support area of the fin, so as to better support the fin 3.

[0028] When the horizontal support part 402 is expanded, part of it is still in the space 11 of the collecting needle 1', so that the horizontal support part 402 is still limited by the through hole 2 of the collecting needle 1', and the horizontal support part 402 can return to the space 11 of the collecting needle 1' as a whole when it is retracted.

[0029] Of course, the elastic element 401 can also be other elastic structures that are retracted when limited and expanded when not limited.

[0030] The push rod 4 is mounted on the push plate 7, which is connected to the piston rod of the cylinder 6. The cylinder 6 is mounted on the support plate 3 via the mounting bracket 5. The cylinder 6 drives the push rod 4 to move up and down through the extension and retraction of the piston rod. When the push rod 4 moves upward, the elastic element 401 opens and extends from the notch 101. Figure 3 , 6 When the push rod 4 moves downward, the elastic element 401 is retracted into the space 11 of the collecting needle 1' by the notch 101, see Figure 7 At this time, the fin 2 is not blocked by the elastic element 401 when it falls.

[0031] When using, such as Figure 2 The finned stomp shown in the figure has its collecting needles 1' and existing collecting needles 1 arranged in rows at intervals. Each row of push rods 4 corresponding to the collecting needles 1' is mounted on the same push plate 7. In this embodiment, each push plate 7 is driven by two cylinders 6 simultaneously. Of course, depending on the number of rows of finned stomp, it can also be driven by one cylinder 6 or more cylinders 6.

[0032] like Figure 2 As shown, when the number of fins 2 reaches the height H1, the position of H1 is set according to the height difference. The cylinder 6 pushes the push rod 4 upward, so that the upper elastic element 401 opens and extends out of the notch 101 of the collecting needle 1', supporting the next fin. The material collection continues until the set number of fins is reached. In this way, the fins will be layered, while the fins on the collecting needle 1 will not be layered.

[0033] After the fins are layered, the upper fins can be removed manually, by a robotic arm or other automated device and placed on the fin row of the collecting needle 1, so that the required height difference is formed between every two rows of fins.

Claims

1. A fin stacking device, characterized in that: It includes a collecting needle, a fin support plate, a push rod, and a driver. The collecting needle has a space in the middle to accommodate the push rod. Several pop-out holes are arranged around the upper part of the space. The tail end is vertically fixed to the fin support plate. The push rod is placed in the space of the collecting needle. Its head is provided with several elastic elements corresponding to the pop-out holes. The tail end is connected to the driver and is driven by the driver to move within the space. The push rod moves upward to the pop-out hole, where the elastic elements open and extend out of the pop-out hole. It moves downward to the pop-out hole, where the elastic elements retract back into the space. The driver is fixed to the fin support plate or a push pin. When the fin reaches a set height, the driver pushes the push rod upward, causing the upper elastic element to open and extend out of the pop-out hole of the collecting needle, supporting the next fin. The collecting continues until the set number of fins is reached, thus causing the fins to be layered.

2. The fin stacking device as described in claim 1, characterized in that: A push plate is provided below the fin support plate, and the lower end of the push rod is fixed on the push plate. The push plate is connected to the driver and is driven to move by the driver.

3. The fin stacking device as described in claim 1 or 2, characterized in that: The actuator is a cylinder, which is fixed to the fin support plate by a mounting plate. The piston rod of the cylinder is connected to the tail of the push rod, and the push rod is pushed upward by the cylinder.

4. The fin stacking device as described in claim 1 or 2, characterized in that: The elastic elements of the push rod are evenly distributed along the circumference. The lower end of the elastic element is fixed to the push rod, and the upper end is a free end. There is a longitudinal gap between each elastic element.

5. The fin stacking device as described in claim 1 or 2, characterized in that: The upper end of the elastic element is a horizontal plane.

6. The fin stacking device as described in claim 5, characterized in that: When the upper end of the elastic element springs open, a portion of the horizontal plane remains within the space.

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