A metal strip bending machine

Abstract

The utility model relates to the technical field of flower bending machine, concretely is a kind of metal strip flower bending machine;The utility model metal strip flower bending machine, including flower bending column and limit post, the outer side wall bottom of flower bending column and limit post is all provided with outer thread, the top of flower bending column and limit post is all provided with a group of internal thread counterbore, the inside of flower bending column and limit post is evenly provided with two groups of first sliding slot, the internal thread counterbore is linked with two groups of first sliding slot, slidingly arranged in the first sliding slot is connecting plate, second spring is fixedly arranged between the connecting plate and first sliding slot;The utility model, when needing to disassemble flower bending column or limit post, just need to screw down cross bolt after, then can press inwards pressing plate drive plugboard and plug groove to separate by connecting plate, then can rotate flower bending column or limit post and flower bending mould or limit mould to carry out helical separation, to this end realize the quick disassembly work of quick flower bending column or limit post.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a metal strip bending machine. Background Technology

[0002] Metal strip bending machines use an unwinding device to feed metal strips into a limiting mold and a bending mold. The reciprocating rotation of the bending mold drives the bending column above it to squeeze and bend the metal strip, thus bending it. However, in traditional metal strip bending machines, the bending column and limiting column are mostly directly fixed to the bending mold and limiting mold. When the bending column and limiting column need to be replaced due to wear, the entire limiting mold and bending mold need to be disassembled and replaced, which reduces the efficiency of component replacement. To address the above situation, we will innovate the technology based on the existing metal strip bending machine. Utility Model Content

[0003] The purpose of this invention is to provide a metal strip bending machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a metal strip bending machine, comprising:

[0005] The device comprises a curved column and a limiting column. Both the outer walls of the curved column and the limiting column have external threads at their bottom. The top of both the curved column and the limiting column has a set of internally threaded countersunk holes. Two sets of first sliding grooves are evenly distributed inside the curved column and the limiting column. The internally threaded countersunk holes communicate with the two sets of first sliding grooves. A connecting plate is slidably disposed within each of the first sliding grooves. A second spring is fixedly disposed between the connecting plate and the first sliding groove. A pressure plate and an insert plate are disposed on the side of the connecting plate away from the second spring. A positioning hole is formed on the outer wall of the connecting plate. A cross bolt is screwed into the internally threaded countersunk hole. Two sets of mounting holes are evenly distributed on the outer wall of the cross bolt stud. A first spring is disposed within each mounting hole. A round-headed pin is disposed on the outer wall of the first spring. The round head of the round-headed pin is inserted into the positioning hole.

[0006] Preferably, the outer walls of the curved column and the limiting column are evenly provided with two sets of second sliding grooves, and the outer walls of the curved column and the limiting column with external threads are evenly provided with two sets of third sliding grooves. The first sliding groove is connected to the second sliding groove and the third sliding groove. The pressure plate and the insert plate are respectively disposed in the second sliding groove and the third sliding groove. The outer wall of the pressure plate located in the curved column is flush with the outer wall of the curved column. The outer wall of the pressure plate located in the limiting column is flush with the outer wall of the limiting column. The side of the connecting plate near the cross bolt stud is in contact with the outer wall of the cross bolt stud.

[0007] Preferably, a bending mold and a limiting mold are placed at the bottom of the bending column and the limiting column. The top of the bending mold has a through-hole, and the limiting mold is placed inside the through-hole. The top of each bending mold has a first internal threaded hole, and the top of each limiting mold has a second internal threaded hole. Two sets of slots are evenly formed in the first internal threaded hole and the second threaded hole, respectively. The externally threaded part of the bending column is screwed into the first threaded hole, and the externally threaded part of the limiting column is screwed into the second threaded hole. The insert plate is inserted into the slot.

[0008] Preferably, an inclined platform is placed on the outer side of the bending mold, and an installation cavity is formed at the top of the inclined platform. The installation cavity extends through the top of the inclined platform, and an annular limiting groove is formed on the inner side wall of the installation cavity. A limiting ring is provided on the outer ring of the bending mold, and the limiting ring is set in the annular limiting groove. A second hydraulic rod and a motor are provided at the bottom of the inner side wall of the installation cavity. The limiting mold is set at the top of the telescopic end of the second hydraulic rod. A toothed ring is provided at the bottom of the bending mold, and a gear is meshed on the left side of the toothed ring. The gear is set at the top of the output end of the motor.

[0009] Preferably, a groove is provided on the top right side of the inclined platform, a guide frame is provided in the groove, a first hydraulic rod is provided on the top rear side of the guide frame, a cutting tool is provided on the front side of the telescopic end of the first hydraulic rod, the right side of the cutting tool is in contact with the left side of the guide frame, and the tops of the bending mold and the limiting mold are flush with the top of the inclined platform.

[0010] Preferably, a metal strip is inserted into the guide frame, the cutting tool is located on the rear side of the metal strip, the metal strip is on the top of the left side bending mold and the limiting mold, the bending column is located on the rear side of the metal strip, and the limiting column is located on the outer side of the metal strip.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention utilizes external threads on the surfaces of the bending column and the limiting column to connect with the first internal thread hole of the bending mold and the second internal thread hole of the limiting mold. A second spring then drives an insert plate into a slot to lock the positions of the bending column and the limiting column. A cross bolt then holds the connecting plate in place, further fixing its position. A first spring drives a round-headed pin into the positioning hole of the connecting plate, improving the anti-loosening properties of the cross bolt. The interlocking between the pressure plate and the cross bolt enhances the installation firmness and operational reliability of the device.

[0013] When it is necessary to disassemble the bending column or the limiting column, simply unscrew the cross bolt, then press the pressure plate inward to drive the insert plate and slot to separate through the connecting plate. Then, rotate the bending column or the limiting column to separate it from the bending mold or the limiting mold in a spiral manner, thereby achieving the quick disassembly of the bending column or the limiting column. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a metal strip bending machine according to the present invention;

[0015] Figure 2 This is a front sectional view of a metal strip bending machine according to the present invention;

[0016] Figure 3 This is a partial sectional view of the front of a metal strip bending machine according to the present invention.

[0017] In the diagram: 1. Inclined platform; 11. Guide frame; 12. First hydraulic rod; 13. Cutting tool; 2. Bending mold; 21. Limiting mold; 22. Second hydraulic rod; 23. Limiting ring; 24. Gear ring; 25. Motor; 26. Gear; 3. Bending column; 31. Limiting post; 32. Cross bolt; 33. First spring; 34. Round head pin; 35. Pressure plate; 36. Connecting plate; 37. Insert plate; 38. Second spring; 4. Metal strip. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-3A metal strip bending machine includes a bending column 3 and a limiting column 31. External threads are formed on the bottom of the outer side walls of both the bending column 3 and the limiting column 31. A set of internally threaded countersunk holes are formed on the top of both the bending column 3 and the limiting column 31. Two sets of first sliding grooves are evenly formed inside the bending column 3 and the limiting column 31. The internally threaded countersunk holes communicate with the two sets of first sliding grooves. A connecting plate 36 is slidably arranged in the first sliding groove. A second spring 38 is fixedly arranged between the connecting plate 36 and the first sliding groove. A pressure plate 35 and an insert plate 37 are fixedly arranged on the side of the connecting plate 36 away from the second spring 38. A positioning hole is formed on the outer side wall of the connecting plate 36. A cross bolt 32 is screwed into the internally threaded countersunk hole. Two sets of mounting holes are evenly formed on the outer side wall of the cross bolt 32 stud. A first spring 33 is fixedly installed, and a round-headed pin 34 is fixedly installed on the outer wall of the first spring 33. The round head of the pin 34 is inserted into the positioning hole. By screwing the cross bolt 32 into the internal thread countersunk hole, the cross bolt 32 abuts against the connecting plate 36, thereby fixing the position of the connecting plate 36 and improving the insertion stability of the insert plate 37. When the cross bolt 32 is tightened, the first spring 33 drives the round-headed pin 34 to insert into the positioning hole of the connecting plate 36, thereby limiting the cross bolt 32 and improving the anti-loosening performance of the cross bolt 32. The interlocking between the pressure plate 35 and the cross bolt 32 can improve the reliability of the device. Two evenly spaced openings are provided on the outer walls of the curved column 3 and the limiting column 31. The second set of sliding grooves, the outer wall of the bending column 3 and the limiting column 31 with external threads, are evenly provided with two sets of third sliding grooves. The first sliding groove is connected to the second and third sliding grooves. The pressure plate 35 and the insert plate 37 are slidably disposed in the second and third sliding grooves respectively. The outer wall of the pressure plate 35 located in the bending column 3 is flush with the outer wall of the bending column 3. The outer wall of the pressure plate 35 located in the limiting column 31 is flush with the outer wall of the limiting column 31. The side of the connecting plate 36 near the cross bolt 32 stud is in contact with the outer wall of the cross bolt 32 stud. The bending mold 2 and the limiting mold 21 are placed at the bottom of the bending column 3 and the limiting column 31. The top of the bending mold 2 has a through-hole. The limiting mold 21 is slidably disposed in the through-hole. The top of the flower mold 2 is provided with a first internal threaded hole, and the top of the limiting mold 21 is provided with a second internal threaded hole. Two sets of slots are provided evenly in the first and second threaded holes respectively. The externally threaded portion of the bending column 3 is screwed into the first threaded hole, and the externally threaded portion of the limiting column 31 is screwed into the second threaded hole. The insert plate 37 is inserted into the slot. Pressing the pressure plate 35 inwards causes the insert plate 37 to slide inwards into the third groove via the connecting plate 36. At this point, the externally threaded portions of the bending column 3 and the limiting column 31 can be screwed into the first internal threaded hole of the bending mold 2 and the second internal threaded hole of the limiting mold 21 respectively. After the bending column 3 or the limiting column 31 is tightened, the insert plate 37 will align with the slot. At this point, the pressure plate 35 can be released.The rebound force of the second spring 38, via the connecting plate 36, drives the insert plate 37 into the slot, thereby fixing the bending post 3 and the limiting post 31 onto the bending mold 2 and the limiting mold 21, respectively.

[0020] An inclined platform 1 is placed on the outer side of the bending mold 2. An installation cavity is formed at the top of the inclined platform 1, extending through the top of the inclined platform 1. An annular limiting groove is formed on the inner wall of the installation cavity. A limiting ring 23 is fixedly installed on the outer ring of the bending mold 2, rotatably positioned within the annular limiting groove. The limiting ring 23 supports the rotation of the bending mold 2. A second hydraulic rod 22 and a motor 25 are fixedly installed at the bottom of the inner wall of the installation cavity. A limiting mold 21 is fixedly installed at the top of the telescopic end of the second hydraulic rod 22. A toothed ring is fixedly installed at the bottom of the bending mold 2. 24. A gear 26 meshes with the left side of the gear ring 24. The gear 26 is fixedly mounted on the top of the output end of the motor 25. A groove is opened on the top right side of the inclined platform 1. A guide frame 11 is fixedly mounted in the groove. A first hydraulic rod 12 is fixedly mounted on the top rear side of the guide frame 11. A cutting tool 13 is fixedly mounted on the front side of the telescopic end of the first hydraulic rod 12. The right side of the cutting tool 13 is in contact with the left side of the guide frame 11. The tops of the bending mold 2 and the limiting mold 21 are flush with the top of the inclined platform 1. A metal strip 4 is inserted into the guide frame 11 for cutting. The cutter 13 is located behind the metal strip 4. It guides the metal strip 4 through the unwinding device, passing it through the guide frame 11 and onto the bending die 2 and the limiting die 21. Multiple limiting posts 31 limit the front and rear sides of the metal strip 4. Then, the motor 25 drives the gear 26 to rotate. The gear 26, through the gear ring 24, drives the bending die 2 to rotate counterclockwise. At this time, the bending die 2 drives the bending column 3 to bend the metal strip 4. Then, the unwinding device pushes the metal strip 4 to continue moving to the left, and the motor 25 drives the bending column 3 to further bend the metal strip 4. The metal strip 4 is bent repeatedly to create a decorative pattern. After bending, the first hydraulic rod 12 drives the cutting tool 13 to move upward to cut the metal strip 4. Then, the second hydraulic rod 22 drives the limiting mold 21 and the limiting post 31 to move downward and separate from the cut metal strip 4. The cut metal strip 4 will slide forward along the inclined plane 1 and be discharged. The metal strip 4 is located on the left side of the bending mold 2 and the top of the limiting mold 21. The bending post 3 is located on the rear side of the metal strip 4, and the limiting post 31 is located on the outer side of the metal strip 4.

[0021] Working principle: Pressing the pressure plate 35 inwards drives the insert plate 37 to slide inwards into the third groove via the connecting plate 36. At this time, the externally threaded parts of the bending column 3 and the limiting column 31 can be screwed into the first internal threaded hole of the bending mold 2 and the second internal threaded hole of the limiting mold 21, respectively. After the bending column 3 or the limiting column 31 is tightened, the insert plate 37 will be aligned with the slot. At this time, the pressure plate 35 is released, and the rebound force of the second spring 38 drives the insert plate 37 to be inserted into the slot via the connecting plate 36, thereby bending the bending column 3. The flower column 3 and the limiting post 31 are fixed on the bending mold 2 and the limiting mold 21, respectively. By screwing the cross bolt 32 into the internal thread countersunk hole, the cross bolt 32 abuts against the connecting plate 36, thereby fixing the position of the connecting plate 36 and improving the insertion stability of the insert plate 37. After the cross bolt 32 is tightened, the first spring 33 drives the round-headed pin 34 to insert into the positioning hole of the connecting plate 36, thereby limiting the cross bolt 32 and improving the anti-restriction of the cross bolt 32. The interlocking between the pressure plate 35 and the cross bolt 32 improves the reliability of the device. The metal strip 4 is passed through the guide frame 11 by the unwinding device and moved to the bending mold 2 and the limiting mold 21. Multiple sets of limiting posts 31 limit the front and rear sides of the metal strip 4. Then, the motor 25 drives the gear 26 to rotate. The gear 26 drives the bending mold 2 to rotate counterclockwise through the gear ring 24. At this time, the bending mold 2 drives the bending column 3 to bend the metal strip 4. Then, the unwinding device pushes the metal strip 4 to continue to move to the left, and the motor 25 drives the bending column 3 to bend the metal strip 4. This process is repeated to bend the metal strip 4. After bending is completed, the first hydraulic rod 12 drives the cutting tool 13 to move upward to cut the metal strip 4. Then, the second hydraulic rod 22 drives the limiting mold 21 and the limiting post 31 to move downward to separate from the cut bent metal strip 4. The cut bent metal strip 4 will slide forward along the inclined plane 1 and be discharged.

[0022] When it is necessary to disassemble the bending post 3 or the limiting post 31, simply unscrew the cross bolt 32, then press the pressure plate 35 inward, and through the connecting plate 36, drive the insert plate 37 to separate from the slot. Then, rotate the bending post 3 or the limiting post 31 to spirally separate from the bending mold 2 or the limiting mold 21, thereby achieving the quick disassembly of the bending post 3 or the limiting post 31.

Claims

1. A metal strip bending machine, characterized in that, include: The curved flower column (3) and the limiting column (31) are provided with external threads on the bottom of their outer side walls. The top of the curved flower column (3) and the limiting column (31) are provided with a set of internal thread countersunk holes. The interior of the curved flower column (3) and the limiting column (31) are provided with two sets of first sliding grooves. The internal thread countersunk holes are connected to the two sets of first sliding grooves. A connecting plate (36) is slidably arranged in the first sliding groove. A second spring (38) is fixedly arranged between the connecting plate (36) and the first sliding groove. The connecting plate (36) is provided with a pressure plate (35) and a insert plate (37) on the side away from the second spring (38). The outer side wall of the connecting plate (36) is provided with a positioning hole. A cross bolt (32) is screwed into the internal thread countersunk hole. Two sets of mounting holes are evenly provided on the outer side wall of the cross bolt (32) stud. A first spring (33) is provided in the mounting hole. A round head pin (34) is provided on the outer side wall of the first spring (33). The round head part of the round head pin (34) is inserted into the positioning hole.

2. The metal strip bending machine according to claim 1, characterized in that: The outer walls of the curved column (3) and the limiting column (31) are evenly provided with two sets of second sliding grooves. The outer walls of the curved column (3) and the limiting column (31) with external threads are evenly provided with two sets of third sliding grooves. The first sliding groove is connected to the second sliding groove and the third sliding groove. The pressure plate (35) and the insert plate (37) are respectively set in the second sliding groove and the third sliding groove. The outer wall of the pressure plate (35) located in the curved column (3) is flush with the outer wall of the curved column (3). The outer wall of the pressure plate (35) located in the limiting column (31) is flush with the outer wall of the limiting column (31). The side of the connecting plate (36) near the cross bolt (32) stud is in contact with the outer wall of the cross bolt (32) stud.

3. A metal strip bending machine according to claim 2, characterized in that: The bottom of the bending column (3) and the limiting column (31) is provided with a bending mold (2) and a limiting mold (21). The top of the bending mold (2) is provided with a placement opening. The limiting mold (21) is placed in the placement opening. The top of the bending mold (2) is provided with a first internal thread hole. The top of the limiting mold (21) is provided with a second internal thread hole. Two sets of slots are provided in the first internal thread hole and the second thread hole respectively. The part of the bending column (3) with external thread is screwed into the first thread hole. The part of the limiting column (31) with external thread is screwed into the second thread hole. The insert plate (37) is inserted into the slot.

4. A metal strip bending machine according to claim 3, characterized in that: An inclined platform (1) is placed on the outside of the bending mold (2). An installation cavity is opened at the top of the inclined platform (1). The installation cavity passes through the top of the inclined platform (1). An annular limiting groove is opened on the inner side wall of the installation cavity. A limiting ring (23) is set on the outer ring of the bending mold (2). The limiting ring (23) is set in the annular limiting groove. A second hydraulic rod (22) and a motor (25) are set at the bottom of the inner side wall of the installation cavity. The limiting mold (21) is set at the top of the telescopic end of the second hydraulic rod (22). A toothed ring (24) is set at the bottom of the bending mold (2). A gear (26) meshes on the left side of the toothed ring (24). The gear (26) is set at the top of the output end of the motor (25).

5. A metal strip bending machine according to claim 4, characterized in that: The top right side of the inclined platform (1) has a groove, and a guide frame (11) is provided in the groove. A first hydraulic rod (12) is provided on the top rear side of the guide frame (11). A cutting tool (13) is provided on the front side of the telescopic end of the first hydraulic rod (12). The right side of the cutting tool (13) is in contact with the left side of the guide frame (11). The top of the bending mold (2) and the limiting mold (21) are flush with the top of the inclined platform (1).

6. A metal strip bending machine according to claim 5, characterized in that: A metal strip (4) is inserted into the guide frame (11), the cutting tool (13) is located on the rear side of the metal strip (4), the top of the bending mold (2) and the limiting mold (21) on the left side of the metal strip (4), the bending column (3) is located on the rear side of the metal strip (4), and the limiting column (31) is located on the outer side of the metal strip (4).

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