Fin longitudinal cutting deburring structure

Abstract

The utility model discloses a kind of fin longitudinal cutting deburring structure, including up-and-down motion's longitudinal cutting upper knife and fixed immobile's longitudinal cutting lower knife, longitudinal cutting upper knife and longitudinal cutting lower knife cooperate to complete the longitudinal cutting to product;The discharge end of longitudinal cutting upper knife and longitudinal cutting lower knife is provided with deburring support plate, the upper surface height of deburring support plate is higher than the discharge port height of longitudinal cutting upper knife and longitudinal cutting lower knife;The blade edge of longitudinal cutting upper knife and longitudinal cutting lower knife includes blade edge right angle face and blade edge bevel, and the blade edge right angle face of longitudinal cutting upper knife and longitudinal cutting lower knife mutually cooperate. Through the utility model can reduce the occurrence probability of longitudinal cutting burr, and adjustment is convenient, can be widely applied in fin longitudinal cutting strip field.

Description

Technical Field

[0001] This utility model relates to the field of fin processing technology, and in particular to a fin longitudinal cutting and deburring structure. Background Technology

[0002] After the fins are formed through multiple stamping processes in a progressive die, the entire sheet of fins needs to be longitudinally cut into strips. To ensure continuous cutting of the fins, the length of the longitudinal cutting blade must be greater than the step distance of each forward movement of the fin. This results in repeated cutting in certain areas of the fin. Repeated cutting makes it difficult to ensure consistent alignment between the cutting blade and the fin in consecutive cuts, and if not properly adjusted, longitudinal burrs are easily generated. Therefore, the structure of the longitudinal cutting blade needs to be improved to reduce the probability of longitudinal burrs. Summary of the Invention

[0003] The purpose of this invention is to provide a fin longitudinal cutting deburring structure to reduce the production probability of longitudinal cutting burrs.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a fin longitudinal cutting and deburring structure, including an upper longitudinal cutting blade that moves up and down and a lower longitudinal cutting blade that is fixed, the upper and lower longitudinal cutting blades cooperate to complete the longitudinal cutting of the product; the discharge end of the upper and lower longitudinal cutting blades is provided with a deburring support plate, the upper surface of the deburring support plate is higher than the discharge port height of the upper and lower longitudinal cutting blades; the cutting edge of the upper and lower longitudinal cutting blades includes a right-angled cutting edge and a beveled cutting edge, the right-angled cutting edges of the upper and lower longitudinal cutting blades cooperate with each other.

[0005] Furthermore, the upper surface of the deburring tray has a planar structure.

[0006] Preferably, the deburring plate is provided with a row of right-angled triangular teeth, the width of which is adapted to the width of a single fin.

[0007] As another implementation, the deburring support plate is provided with isosceles triangular teeth, the width of which is twice the width of a single fin.

[0008] To facilitate adjustment of the height of the deburring support plate, a fixing seat is also provided. The fixing seat is provided with an adjusting bolt, and the deburring support plate is fixed on the adjusting bolt. An adjusting bolt is provided between the fixing seat and the deburring support plate. The fixing seat is provided with a countersunk hole. The outer edge of the nut of the adjusting bolt is a polygonal structure. A limit sleeve is also provided in the countersunk hole. The limit sleeve is locked in place by the countersunk hole. The limit sleeve is provided with a polygonal inner hole that is locked in place by the nut.

[0009] Furthermore, the deburring support plate is threadedly fixed to the adjusting bolt.

[0010] Furthermore, the cutting edges of the upper and lower longitudinal cutting blades are toothed.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a deburring support plate at the discharge end of the fin longitudinal cutting blade assembly to support the cut fins. When the upper longitudinal cutting blade descends to cut, it first separates the two rows of fins under its action. Then, the upper longitudinal cutting blade continues to descend and cooperates with the lower longitudinal cutting blade to complete the longitudinal cutting, thereby avoiding repeated cutting of the two rows of fins by the upper longitudinal cutting blade, and thus avoiding the generation of longitudinal burrs. The deburring support plate adopts a right-angled triangular tooth or isosceles triangular tooth structure, which can better separate adjacent fins under the action of height difference, facilitating the lower cutting. The deburring support plate is positioned by a matching structure of a limiting sleeve and an adjusting bolt, which facilitates manual adjustment without the need for tools to loosen the bolts for adjustment, thus making adjustment more convenient.

[0012] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the fins supported on the deburring support plate of this utility model.

[0015] Figure 3 This is a schematic diagram of the deburring support plate in this utility model. Figure 1 .

[0016] Figure 4 This is a schematic diagram of the deburring support plate in this utility model. Figure 2 .

[0017] Figure 5 This is a schematic diagram of the structure of the limiting sleeve and the fixed base in this utility model. Detailed Implementation

[0018] Examples, such as Figures 1 to 5 As shown, a fin longitudinal cutting and deburring structure includes a stationary template 10 and a moving template 20. A set of longitudinal cutting lower blades 2 are fixedly arranged on the template 10, and a set of longitudinal cutting upper blades 1 that move up and down with the moving template 20 are fixedly arranged on the moving template 20. The longitudinal cutting upper blades 1 and the longitudinal cutting lower blades 2 form a longitudinal cutting blade group. After the fin is stamped, it enters the longitudinal cutting blade group and is longitudinally cut into strips in cooperation with the longitudinal cutting upper blades 1 and the longitudinal cutting lower blades 2.

[0019] The cutting edges of the upper longitudinal cutting blade 1 and the lower longitudinal cutting blade 2 include a right-angled cutting edge 8 and a beveled cutting edge 9. The right-angled cutting edges 8 of the upper longitudinal cutting blade 1 and the lower longitudinal cutting blade 2 cooperate to form a scissor cut to cut the fins. To avoid repeated cutting and reduce burr generation, a deburring support plate 3 is provided at the discharge end of the upper longitudinal cutting blade 1 and the lower longitudinal cutting blade 2. The upper surface of the deburring support plate 3 is higher than the discharge port height of the upper longitudinal cutting blade 1 and the lower longitudinal cutting blade 2. The longitudinally cut fins pass over the upper surface of the deburring support plate 3, thereby lifting the fins near the discharge end of the upper longitudinal cutting blade 1 and the lower longitudinal cutting blade 2, and partially detaching them from the lower longitudinal cutting blade 2. Figure 2 As shown in the figure, 'a' represents the repeated cutting area. When the upper longitudinal cutter 1 moves downward, it first contacts the fins in the repeated cutting area. When the mold precision is error-free, the upper longitudinal cutter 1 enters along the cut between the two fins without producing burrs. When the mold has errors, the upper longitudinal cutter 1 deviates and acts on one of the fins. Without the structure of this invention, longitudinal burrs would be produced. However, in the structure of this invention, since the fins are suspended in the repeated cutting area, when the upper longitudinal cutter 1 contacts the fins and presses down, under the action of the inclined blade 9, the upper longitudinal cutter 1 smoothly enters the gap between the two rows of fins without cutting onto one of the rows of fins, thus preventing longitudinal burrs. Preferably, the cutting edge shape of the upper longitudinal cutter 1 and the lower longitudinal cutter 2 is toothed, with at least one tooth located in the repeated cutting area. In this way, when the upper longitudinal cutter 1 moves downward, the tip of the tooth first contacts the fin, opening the fin and allowing the upper longitudinal cutter 1 to smoothly enter the cut between the two fins.

[0020] The upper surface of the deburring support plate 3 can be planar, but preferably, it can also be irregular, allowing the two rows of fins to separate naturally and increasing the gap between the cuts. For example, the deburring support plate 3 may have a row of right-angled triangular teeth 31. Figure 3 As shown, the width of the right-angled triangular teeth 31 is adapted to the width of a single fin, and each fin rests on the hypotenuse of the right-angled triangular teeth 31, thereby creating a height misalignment and increasing the gap between adjacent rows of fins; isosceles triangular teeth 32 can also be provided on the deburring support plate 3, such as... Figure 4 As shown, the width of the isosceles triangular tooth 32 is twice the width of a single fin, so that two adjacent fins rest on the two hypotenuses of the isosceles triangular tooth 32, thereby increasing the slit gap between two adjacent fins.

[0021] To facilitate manual adjustment of the height of the deburring support plate 3, a fixed seat 4 is provided on the stationary template 10. An adjusting bolt 5 is mounted on the fixed seat 4, and the deburring support plate 3 is fixed to the adjusting bolt 5 via a threaded connection. An adjusting spring 6 is provided between the fixed seat 4 and the deburring support plate 3, allowing the deburring support plate 3 to move up and down under the action of the adjusting spring 6. Simultaneously, a countersunk hole 41 is provided on the fixed seat 4, and a limiting sleeve 7 is fitted onto the adjusting bolt 5. The limiting sleeve 7 has a through hole that matches the threaded portion of the adjusting bolt 5. One end of the limiting sleeve 7 abuts against the lower end face of the nut of the adjusting bolt 5, and the other end presses against the countersunk hole 41. To ensure the limiting sleeve 7 engages and locks with the countersunk hole 41 to prevent rotation, a polygonal surface structure 71 is provided at the end of the limiting sleeve 7 that engages with the countersunk hole 41, and the polygonal surface structure 71 is locked into the countersunk hole 41. To facilitate carrying the retaining sleeve 7, a carrying protrusion 72 is provided on the upper part of the retaining sleeve 7. The retaining sleeve 7 can also be secured to the fixing base 4 by: creating a groove 411 on the edge of the countersunk hole 41, and providing a retaining strip 73 on the outer edge of the retaining sleeve 7; the retaining strip 73 engages with the groove 411 to complete the positioning. Figure 5 As shown. When it is necessary to adjust the position of the deburring support plate 3, manually lift the limiting sleeve 7, which will move the adjusting bolt 5 upwards, causing the lower end of the limiting sleeve 7 to disengage from the fixing seat 4. Then rotate the adjusting bolt 5. After the position is adjusted, the limiting sleeve 7 is re-engaged into the countersunk hole 41 and secured. This structure can be adjusted manually without the need for tools, making adjustment more convenient.

[0022] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fin longitudinal cutting and deburring structure, comprising an upper longitudinal cutting blade (1) that moves up and down and a lower longitudinal cutting blade (2) that remains stationary, the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2) working together to longitudinally cut the product; characterized in that: The discharge ends of the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2) are provided with deburring support plates (3). The height of the upper surface of the deburring support plate (3) is higher than the discharge port height of the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2). The cutting edges of the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2) include a right-angled cutting edge (8) and a beveled cutting edge (9). The right-angled cutting edges (8) of the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2) cooperate with each other.

2. The fin longitudinal deburring structure according to claim 1, characterized in that: The upper surface of the deburring tray (3) is a planar structure.

3. The fin longitudinal deburring structure according to claim 1, characterized in that: The deburring plate (3) is provided with a row of right-angled triangular teeth (31), the width of which is adapted to the width of a single fin.

4. The fin longitudinal deburring structure according to claim 1, characterized in that: The deburring plate (3) is provided with isosceles triangular teeth (32), the width of which is twice the width of a single fin.

5. The fin longitudinal deburring structure according to claim 1, characterized in that: A fixed seat (4) is also provided, and an adjusting bolt (5) is provided on the fixed seat (4). The deburring support plate (3) is threadedly connected to the adjusting bolt (5). An adjusting spring (6) is provided between the fixed seat (4) and the deburring support plate (3). A countersunk hole (41) is provided on the fixed seat (4). A limiting sleeve (7) is fitted on the adjusting bolt (5). The limiting sleeve (7) and the countersunk hole (41) cooperate to clamp and fix it.

6. The fin longitudinal deburring structure according to claim 1, characterized in that: The cutting edges of the upper longitudinal cutting blade (1) and the lower longitudinal cutting blade (2) are toothed.

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