A material pulling structure

Abstract

The present invention provides a material pulling structure, including a fixed component, a sliding component, a rotating component and a rod assembly installed in a mold, wherein the fixed component and the sliding component are relatively arranged on a bottom plate, and the bottom of the sliding component moves left and right along a guide plate installed on the bottom plate to pull the material strip; the fixed component and the sliding component are both installed with a rotating component, and the rotating component is in movable contact with the rod assembly up and down under the action of the mold to prevent the material strip from loosening and grasping. The present invention breaks the traditional feeding method, and adopts a combination of mechanical and pneumatic to facilitate the up and down movement of the mold itself to realize a fully mechanized or semi-mechanized material pulling process. The structure is simple, reliable, and convenient for debugging and adjustment, which solves the feeding problem in thin material blanking.

Description

Technical Field

[0001] The invention mainly relates to the field of thin material blanking, and in particular to a material drawing structure. Background Art

[0002] In the process of thin material blanking, due to the thin material thickness and low strength, the long mold length, and the distance between the feeder and the stamping equipment, the material warps and cannot be fed accurately during the feeding process.

[0003] The Chinese invention patent has been published, application number CN201310579983.4, patent name: a drawing die structure, application date: 2013-11-19, the present invention relates to a drawing die structure, a dedicated feeding mechanism is arranged on the progressive die, because it is the feeding mechanism provided in the progressive die, there is no need to configure a feeder, saving production costs, it comprises an upper die and a lower die, characterized in that: an inclined wedge is arranged on the upper die, a movable support plate is arranged on the lower die structure, a stop rod is arranged on the movable support plate corresponding to the inclined wedge, a telescopic stop column which can be extended up and down is arranged on the lower die structure corresponding to the movable support plate, and the telescopic stop column is an inclined surface relative to the movement direction of the sheet metal. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the present invention provides a material pulling structure, comprising a fixed component, a sliding component, a rotating component and a rod assembly installed in a mold, wherein the fixed component and the sliding component are relatively arranged on a bottom plate 1, and the bottom of the sliding component moves left and right along a guide plate 2 installed on the bottom plate 1 to pull the material strip;

[0005] The fixed component and the sliding component are both equipped with a rotating component, and the rotating component is in movable contact with the rod component up and down under the action of the mold to prevent the material strip from loosening and grasp it.

[0006] Preferably, the fixed assembly and the sliding assembly both include a cover plate 3, a support plate 4, a rotating shaft 5, a pressure plate 6 and an elastic plate 7, wherein the support plate 4 in the fixed assembly is connected to the cover plate 3 and the fixed plate 8 by screws, and the support plate 4 in the sliding assembly is connected to the cover plate 3 and the sliding plate 9 by screws;

[0007] The support plate 4 is provided with a shaft hole for installing the shaft 5 to make it rotate smoothly, and the middle and both sides of the shaft are provided with flattened structures;

[0008] The support plate 4 is located below the rotating shaft 5 and is provided with a pressing plate 6 and an elastic plate 7 , and a material gap is provided between the pressing plate 6 and the elastic plate 7 .

[0009] Preferably, the pressing plate 6 is fixed to the lower surface of the supporting plate 4 by means of unloading screws, and the fixing plate 8 is mounted with an elastic plate 7 by means of springs and unloading screws.

[0010] Preferably, the sliding plate 9 in the sliding assembly is installed with an elastic plate 7 through a spring and a discharge screw, and steps are provided on both sides of the sliding plate 9 corresponding to the guide plate 2, and the guide plate 2 is fixed to the bottom plate 1 by screws;

[0011] The support plate 4 is bolted to a cylinder 16 on one side away from the fixing assembly.

[0012] Preferably, the rotating assembly includes a rotating mechanism body 10, a special-shaped hole 11 and a protruding connecting rod 12, wherein the rotating mechanism body 10 is provided with a special-shaped hole 11 matching the flattened structure of the rotating shaft 5, and a protruding connecting rod 12 is vertically installed on one side of the rotating mechanism body 10 close to the rod assembly.

[0013] Preferably, the rod assembly includes a first rod 13, a second rod 14 and a third rod 15 that move up and down, wherein the first rod 13 and the second rod 14 are arranged back to back, and the bottoms of the first rod 13 and the second rod 14 are both hook-shaped, and the arc-shaped ends of the hooks match the raised connecting rod structure.

[0014] Preferably, the rotation angle of the rotating component installed on the fixed component is based on the horizontal direction of the rotating shaft 5, and is 45 degrees up and down on the side close to the sliding component; the rotation angle of the rotating component installed on the sliding component is based on the horizontal direction of the rotating shaft 5, and is 45 degrees upward on one side of the fixed component.

[0015] The beneficial effects of the present invention are as follows: breaking the traditional feeding method, using a combination of mechanical and pneumatic means to facilitate the up and down movement of the mold itself to achieve a fully mechanized or semi-mechanized pulling process, with a simple and reliable structure that is convenient for debugging and adjustment, and solving the feeding problem that occurs during thin material blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a usage state diagram of the present invention;

[0017] Figure 2 It is a left side view of the fixing assembly in the present invention; Figure 3 It is a front view of the fixing assembly in the present invention; Figure 4

[0018] It is a left side view of the sliding assembly in the present invention; Figure 5 It is a front view of the sliding assembly in the present invention; Figure 6 It is a structural diagram of the rotating assembly in the present invention; Figure 7 It is a structural diagram of process 1 in the embodiment;

[0019] Figure 8 It is a structural diagram of process 2 in the embodiment;

[0020] Fig. 9 It is a structural diagram of process 3 in the embodiment;

[0021] Fig.10 It is a structural diagram of process 4 in the embodiment;

[0022] Fig.11 It is a structural diagram of process 5 in the embodiment;

[0023] In the figure,

[0024] 1. Bottom plate; 2. Guide plate; 3. Cover plate; 4. Support plate; 5. Rotating shaft; 6. Pressure plate; 7. Elastic plate; 8. Fixed plate; 9. Moving plate; 10. Rotating mechanism body; 11. Special-shaped hole; 12. Raised connecting rod; 13. No. 1 hitting rod; 14. No. 2 hitting rod; 15. No. 3 hitting rod; 16. Cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention better understood by the technical personnel in the field, and to make the above-mentioned features, purposes and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the embodiments. The embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0026] like Figure 1-11 As shown, the present invention includes: a fixed component, a sliding component, a rotating component and a rod assembly installed in the mold, the fixed component and the sliding component are relatively arranged on the bottom plate 1, and the bottom of the sliding component moves left and right along the guide plate 2 installed on the bottom plate 1 to pull the material strip;

[0027] The fixed component and the sliding component are both equipped with a rotating component, and the rotating component is in movable contact with the rod component up and down under the action of the mold to prevent the material strip from loosening and grasp it.

[0028] In this embodiment, preferably, the fixed assembly and the sliding assembly both include a cover plate 3, a support plate 4, a rotating shaft 5, a pressure plate 6 and an elastic plate 7. The support plate 4 in the fixed assembly is connected to the cover plate 3 and the fixed plate 8 by screws at the top and bottom. The support plate 4 is provided with a rotating shaft hole for installing the rotating shaft 5 so that it rotates smoothly. The middle and both sides of the rotating shaft are provided with a flattened structure.

[0029] During use, when the shaft rotates, the pressing plate moves up and down. When the flattened surface fits the pressing plate, the pressing plate is at the upper limit position. The raw material is released and can move between the pressing plate and the elastic plate. When the pressing plate rotates at a certain angle, it will be tangent to the arc surface of the shaft. At this time, the pressing plate is at the lowest limit position. The pressing plate moves down and presses the material on the elastic plate. The elastic plate has a holding force on the material under the action of the spring below, so that the material is held between the two plates.

[0030] The support plate 4 is located below the rotating shaft 5 and is provided with a pressing plate 6 and an elastic plate 7, and a material gap is provided between the pressing plate 6 and the elastic plate 7;

[0031] In use, the pressing plate itself has a C angle, which is convenient for the material to pass through the gap between the clamping plate and the elastic plate (the gap is greater than one material thickness) and is fixed with a discharge screw. Under the action of the spring, it always fits upward on the rotating shaft and can move up and down. It is a key component for holding the material:

[0032] The elastic plate itself has a C angle, which makes it convenient for the material to pass through the gap between the splint and the elastic plate. It is always subjected to an upward force under the action of the unloading screw and the spring, and is in the upper limit position when not subject to other external forces. When the shaft rotates and the pressure plate moves downward, the pressure plate presses the raw material and the elastic plate downward together and compresses the spring, so that the raw material is held.

[0033] In this embodiment, the difference between the sliding assembly and the fixed assembly is that: the support plate 4 in the sliding assembly is connected to the cover plate 3 and the sliding plate 9 by screws at the top and bottom;

[0034] The sliding plate 9 in the sliding assembly is installed with an elastic plate 7 through a spring and a discharge screw. Steps are arranged on both sides of the sliding plate 9 corresponding to the guide plate 2. The guide plate 2 is fixed to the bottom plate 1 by screws. The sliding plate 9 can move left and right under the guidance of the guide plate.

[0035] The side of the support plate 4 away from the fixing assembly is bolted with a cylinder 16 .

[0036] In this embodiment, the rotating assembly preferably includes a rotating mechanism body 10, a special-shaped hole 11 and a protruding connecting rod 12. The rotating mechanism body 10 is provided with a special-shaped hole 11 matching the flattened structure of the rotating shaft 5, and a protruding connecting rod 12 is vertically installed on one side of the rotating mechanism body 10 close to the rod assembly.

[0037] The above structure is set up, the rotating mechanism is provided with a special-shaped hole that can match the flattened part of the shaft, and a protruding connecting rod structure is also provided. The connecting rod structure is used to receive the external force to drive the rotating mechanism and the shaft to rotate within a certain angle range.

[0038] In this embodiment, the rod assembly preferably includes a first rod 13, a second rod 14 and a third rod 15 that move up and down, wherein the first rod 13 and the second rod 14 are arranged back to back, and the bottoms of the first rod 13 and the second rod 14 are both hook-shaped, and the arc-shaped ends of the hooks match the raised connecting rod structure.

[0039] In this embodiment, the rotation angle of the rotating assembly installed on the fixed assembly is preferably 45 degrees up and down on the side close to the sliding assembly, based on the horizontal direction of the rotating shaft 5;

[0040] The rotation angle of the rotating assembly installed on the sliding assembly is based on the horizontal direction of the rotating shaft 5 and is 45 degrees upward on one side of the fixed assembly.

[0041] In use, the specific stroke of the rod assembly is described as follows:

[0042] 1. No. 1 driving rod: It can push the rotating mechanism of the fixed part to rotate 45° counterclockwise upward or 45° clockwise downward as the mold moves up and down, and at the same time drive the rotating shaft to perform a certain bidirectional 45° rotational movement around the axis.

[0043] 2. No. 2 driving rod: It only provides upward pulling force for the sliding part of the rotating mechanism. When the mold moves upward, it pulls the rotating mechanism upward and drives the rotating shaft to rotate 45° clockwise.

[0044] 3. No. 3 driving rod: Only when the sliding part is in the rightmost position, the force to push the shaft downward is provided during the downward movement of the mold, so that the shaft rotates 45° counterclockwise around the axis.

[0045] In use, the specific implementation process is as follows:

[0046] according to Figure 7 ,Process 1: In the initial state, the mold is at the bottom dead center, the fixed part material is pressed tightly, the sliding part material is relaxed, and the sliding part is at the leftmost position;

[0047] according to Figure 8 , Process 2: The mold moves upward and drives the three rods to pull the protruding connecting rod of the rotating mechanism. As the connecting rod moves up and down with the rod, the fixed part of the connecting rod rotates 45° counterclockwise, and the material changes from a compressed state to a relaxed state; the sliding part of the connecting rod rotates 45° clockwise, and the material changes from a relaxed state to a compressed state;

[0048] according to Fig. 9 , Process 3: When the mold reaches the top dead center, the cylinder pulls the sliding part to the right and drives the material to move to the right. A limiter can be added on the right side as needed to ensure the distance of each material pulling;

[0049] according to Fig.10 , Process 4: Then the mold moves downward, and the No. 1 hitting rod and the No. 3 hitting rod act on the connecting rods of the two parts respectively, and rotate 45 degrees respectively. At this time, the left side is pressed tightly and the right side is relaxed;

[0050] according to Fig.11 , Process 5: When the mold reaches the bottom dead center, the cylinder pushes the sliding part to move to the left. It may be necessary to add a limit block on the left side to ensure the pulling distance.

[0051] In this way, the pulling process is realized in a sequential reciprocating manner. For molds with a shorter pulling stroke, the cylinder part can be changed to a cam groove structure to realize fully mechanical pulling.

[0052] The above embodiments are merely illustrative of the principles and effects of this patent application, and are not intended to limit this patent application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of this patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in this patent application should still be covered by the claims of this patent application.

Claims

1. A material pulling structure, characterized in that: It comprises a fixed component, a sliding component, a rotating component and a rod assembly installed in the mold, wherein the fixed component and the sliding component are relatively arranged on a bottom plate (1), and the bottom of the sliding component moves left and right along a guide plate (2) installed on the bottom plate (1) to pull the material strip; The fixed component and the sliding component are both equipped with a rotating component, and the rotating component is in movable contact with the rod component up and down under the action of the mold to achieve loosening and tightening of the material belt; The fixed assembly and the sliding assembly both comprise a cover plate (3), a support plate (4), a rotating shaft (5), a pressure plate (6) and an elastic plate (7); the support plate (4) in the fixed assembly is connected to the cover plate (3) and the fixed plate (8) by screws at the top and bottom, and the support plate (4) in the sliding assembly is connected to the cover plate (3) and the sliding plate (9) by screws at the top and bottom; The support plate (4) is provided with a rotating shaft hole for installing the rotating shaft (5) so that it can rotate smoothly, and the middle and both sides of the rotating shaft are provided with flattened structures; The support plate (4) is located below the rotating shaft (5) and is provided with a pressing plate (6) and an elastic plate (7), and a material gap is provided between the pressing plate (6) and the elastic plate (7); The pressing plate (6) is fixed to the lower surface of the supporting plate (4) by means of a discharge screw, and the fixing plate (8) is mounted with an elastic plate (7) by means of a spring and a discharge screw; The sliding plate (9) in the sliding assembly is installed with an elastic plate (7) via a spring and a discharge screw, steps are arranged on both sides of the sliding plate (9) corresponding to the guide plate (2), and the guide plate (2) is fixed to the bottom plate (1) via screws; the support plate (4) on the sliding assembly is bolted to a cylinder (16) on the side away from the fixed assembly; The rotating assembly comprises a rotating mechanism body (10), a special-shaped hole (11) and a protruding connecting rod (12); the rotating mechanism body (10) is provided with a special-shaped hole (11) matching the flattened structure of the rotating shaft (5); and the protruding connecting rod (12) is vertically mounted on one side of the rotating mechanism body (10) close to the rod-beating assembly; The rod assembly comprises a first rod (13), a second rod (14) and a third rod (15) which move up and down, wherein the first rod (13) and the second rod (14) are arranged opposite to each other, and the bottoms of the first rod (13) and the second rod (14) are both hook-shaped, and the arc-shaped ends of the hooks match the protruding connecting rod structure; In use, the specific stroke of the rod assembly is described as follows: The first driving rod (13) can push the rotating assembly of the fixed assembly to rotate 45° counterclockwise upward or 45° clockwise downward as the mold moves up and down, and at the same time drive the rotating shaft to perform a two-way 45° rotational movement around the axis; The second driving rod (14) only provides the upward pulling force for the sliding assembly and the rotating assembly. When the mold moves upward, it pulls the rotating assembly upward and drives the rotating shaft to rotate 45° clockwise. The third driving rod (15) provides a downward force to push the shaft during the downward movement of the mold only when the sliding assembly is in the rightmost position, so that the shaft rotates 45° counterclockwise around the axis.

Images