Bending mechanism on button sewing machine

Abstract

The utility model relates to the technical field of conveyor belt production, and discloses a bending mechanism on a button sewing machine, which comprises a stamping blanking component and a bending component, and the bending component comprises a connecting rod, a die head, a die holder and an inserting block. The stamping column is installed in the middle of the supporting column, a die head in the bending assembly is pushed to move towards the die base, a nail button in the middle of the die base is bent, the overall linkage mechanism is adopted, the bending efficiency is high, intermittent reciprocating motion is achieved, the buffering time can be provided for automatic feeding and discharging of equipment, and the bending precision is guaranteed; the clamping jaw connected with the third tension spring is added to be in butt joint with the die holder and is opened at the upper end of the die holder, a discharging port of the discharging groove is not clamped any more, discharging is convenient, after the stamping bending action is completed, the connecting rod retreats, the third tension spring assists the clamping jaw to move towards the inner side wall and be clamped between the die holder and the discharging groove again, and the next bending action is convenient. And manual feeding and discharging operation is completely replaced, and the bending safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt production, in particular to a bending mechanism on a button sewing machine. Background Art

[0002] Conveyor belts are composite products of rubber, fiber, metal, or plastic and fabric used in belt conveyors to carry and transport materials. They are suitable for continuous, high-efficiency, and large-angle transportation, so they are widely used in cement, coking, metallurgy, chemical, steel, mining and other industries where the transportation distance is short and the transportation volume is small. In order to achieve the purpose of use, all conveyor belts must be connected in a ring, so the quality of the conveyor belt joints directly affects the service life and transportation performance of the conveyor belt. Common methods for conveyor belt joints include cold bonding joints, hot vulcanization joints, mechanical joints, etc.

[0003] The existing button sewing machine adopts semi-automatic manual button sewing. When sewing the male button, holes are punched in advance on the carrier. Then the operator needs to put the upper button of the male button flat on the end of the riveting upper die, and then put the lower button on the end of the riveting lower die. If the operator's fingers are not moved out of the projection area of ​​the riveting upper die in time, the riveting upper die will directly press on the operator's fingers, causing injury to the operator. The button sewing machine has safety hazards, is inconvenient to operate, and is inefficient. Utility Model Content

[0004] The utility model aims to provide a bending mechanism on a button sewing machine, which solves the problems of potential safety hazards, inconvenient operation and low efficiency of the button sewing machine in the background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A bending mechanism on a button sewing machine comprises a stamping blanking assembly and a bending assembly, wherein the stamping blanking assembly comprises a base, a support column, a support platform, a blanking trough and a stamping column, wherein the support platform is fixedly mounted on the upper end of the base, the support column is connected to the middle position of the upper end of the support platform by bolts, the blanking trough is connected to the front of the support platform by bolts, and the stamping column is slidably mounted in the middle of the support column;

[0007] The bending assembly includes a connecting rod, a die head, a die base and an insert block. A fixed base is connected to the middle position of the support platform by bolts, the connecting rod is movably inserted in the middle of the fixed base, the die head is connected to one end of the connecting rod by bolts, the die base is connected to the other side of the fixed base by bolts, and the die base is located below the feed chute, the insert block is movably inserted in the middle slot of the connecting rod, and a first spring is connected to the inside of the fixed base by bolts, the upper end of the first spring is clamped at the bottom of the insert block, and the side wall of the insert block is provided with an inclined structure matching the side wall of the middle slot of the connecting rod, the bottom side wall of the stamping column is threadedly connected with a push rod, the push rod is located at the upper end of the insert block, one side of the fixed base is connected to a first tension spring by bolts, and the other end of the first tension spring is clamped at the side wall of the connecting rod.

[0008] Preferably, an upper paddle is connected to the middle position of the lower end of the stamping column by bolts, and the end of the upper paddle extends to one side of the middle of the discharge chute. The bottom side wall of the stamping column is connected to a lower paddle by bolts, and the lower paddle is located above the feed port of the die base.

[0009] Preferably, a main shaft is connected to the middle position of the top of the support column through a bearing, a cam is connected to the middle key of the main shaft, the side wall of the cam is in rotational contact with the upper end surface of the stamping column, and a second tension spring is connected to the inner wall of the support column through bolts, and the lower end of the second tension spring is fixedly mounted on the upper end side wall of the stamping column.

[0010] Preferably, the spindle end is key-connected with a turntable, the rear end side wall of the support column is bolted with a motor, the motor spindle end is key-connected with a pulley matching the turntable, and the turntable and the pulley are connected via a belt drive.

[0011] Preferably, a top block is movably inserted in the middle position of the other side of the fixed seat, and the end of the top block extends to the center of the mold base, and the end of the top block corresponds to the position of the mold head.

[0012] Preferably, the outer side wall of the fixing seat is connected to a second spring via bolts, and an end of the second spring is connected to the side wall of the top block.

[0013] Preferably, a claw is hinged in the middle position of the fixed seat, and the end of the claw extends to the side wall below the feed chute and above the feed inlet of the mold base. The inner side wall of the claw is provided with a rack structure meshing with the side wall of the connecting rod, and the middle positions of the two groups of claws are connected by a third tension spring.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] 1. The present application installs a punching column in the middle of the support column, and installs a push rod at the bottom of the punching column to connect with the bending equipment below. The power provided by the punching column can be adjusted from the plug block to the horizontal thrust, so as to push the die head in the bending assembly to move toward the die base, and bend the nail button in the middle of the die base. The overall linkage mechanism has high bending efficiency, and the intermittent reciprocating motion can provide buffer time for the automatic loading and unloading of the equipment, so as to ensure the stable delivery of the material to the middle of the die base to be processed, and ensure the bending accuracy.

[0016] 2. The present application connects the clamping claw with the die base by installing a third tension spring in the middle of the fixed base, and the inner side wall of the end of the clamping claw and the side wall of the connecting rod are combined by setting an engaging rack structure. When the connecting rod extends forward, the clamping claw will be driven to move outward through the rack and open at the upper end of the die base, and will no longer block the feeding port of the feeding trough, thus facilitating feeding. After the stamping and bending action is completed, the connecting rod retreats, and the third tension spring assists the clamping claw to move toward the inner side wall and is re-stuck between the die base and the feeding trough, thus facilitating the next bending action. It completely replaces the manual feeding and unloading operations and improves the safety of bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0018] Figure 2 This is a schematic diagram of the left side structure of this application;

[0019] Figure 3 It is a schematic diagram of the right side structure of this application;

[0020] Figure 4 This is a schematic diagram of the internal component structure of this application;

[0021] Figure 5 This is a schematic diagram of the back structure of this application.

[0022] Wherein: 100, stamping and blanking assembly; 101, base; 102, support column; 103, support platform; 104, blanking trough; 105, stamping column; 106, ejector rod; 107, upper paddle; 108, lower paddle; 109, main shaft; 110, cam; 111, second tension spring; 112, turntable; 113, motor; 114, pulley; 115, belt; 200, bending assembly; 201, connecting rod; 202, die head; 203, die base; 204, insert block; 205, fixed seat; 206, first spring; 207, ejector block; 208, second spring; 209, claw; 210, third tension spring; 211, first tension spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 A bending mechanism on a button sewing machine includes a stamping blanking component 100 and a bending component 200. The stamping blanking component 100 includes a base 101, a support column 102, a support platform 103, a blanking trough 104 and a stamping column 105. The support platform 103 is fixedly installed on the upper end of the base 101, the support column 102 is connected to the middle position of the upper end of the support platform 103 by bolts, the blanking trough 104 is connected to the front of the support platform 103 by bolts, and the stamping column 105 is slidably installed in the middle of the support column 102. The stamping blanking component 100 composed of the base 101, the support column 102, the support platform 103, the blanking trough 104 and the stamping column 105 is used to cooperate It docks with the bending assembly 200, provides the bending assembly 200 with the power for bending, and can cooperate with the bending assembly 200 to perform the loading operation, wherein the base 101 is combined with the support platform 103 and the support column 102 to maintain the stability of the position of the overall component, and the stamping column 105 installed in the middle of the support column 102 is docked and driven by the control device to complete the reciprocating motion operation of the upper and lower pressing, and provides power to the bending assembly 200 installed in the middle of the support platform 103 to maintain the stable operation of the bending assembly 200, and the unloading chute 104 is used to cooperate with the bending assembly 200 to provide the material to be processed, and keep the material stably transported to the feeding port of the bending assembly 200;

[0025] The bending assembly 200 includes a connecting rod 201, a die head 202, a die base 203 and an insert block 204. The middle position of the support platform 103 is connected to a fixed base 205 by bolts. The connecting rod 201 is movably inserted in the middle of the fixed base 205. The die head 202 is connected to one end of the connecting rod 201 by bolts. The die base 203 is connected to the other side of the fixed base 205 by bolts, and the die base 203 is located below the feed chute 104. The insert block 204 is movably inserted in the middle slot of the connecting rod 201, and the fixed base 205 is internally connected to a first spring 206 by bolts. The upper end of the spring 206 is clamped on the bottom of the plug block 204, and the side wall of the plug block 204 is provided with an inclined surface structure matching the side wall of the middle slot of the connecting rod 201. The bottom side wall of the stamping column 105 is threadedly connected with the push rod 106, and the push rod 106 is located at the upper end of the plug block 204. One side of the fixed seat 205 is connected with a first tension spring 211 by bolts, and the other end of the first tension spring 211 is clamped on the side wall of the connecting rod 201. A bending assembly 200 consisting of the connecting rod 201, the die head 202, the die seat 203, the plug block 204 and the fixed seat 205 is added. When the stamping column 105 is pressed down, The push rod 106 installed at the bottom of the stamping column 105 will cooperate to press the plug block 204 downward. At this time, the first spring 206 installed at the bottom of the plug block 204 will be compressed, and the first tension spring 211 will stretch a certain length as the connecting rod 201 moves, and both will store a certain amount of elastic potential energy. The plug block 204 applies a lateral thrust to the connecting rod 201 along the side wall slope, and the die head 202 is driven forward by the connecting rod 201 to be inserted into the middle of the die base 203, so that the nail button material falling from the feed chute 104 in the middle of the die base 203 is stamped and bent along the side wall of the die base 203. During bending and forming, the upper driving component moves to the lowest point of the reciprocating motion, and then it will move up with the stamping column 105, so that when the push rod 106 component rises, the stress state on the upper end surface of the plug block 204 disappears. At this time, the first spring 206 will release the elastic potential energy stored previously to drive the plug block 204 to move up to the top of the connecting rod 201, so that the inclined surface of the side wall of the plug block 204 is out of contact with the side wall of the connecting rod 201. At the same time, the first tension spring 211 will also release the stored elastic potential energy, pulling the connecting rod 201 to return to its original relaxed position, which is convenient for the next stamping and bending operation.

[0026] Specifically, an upper paddle 107 is bolted to the middle position of the lower end of the stamping column 105, and the end of the upper paddle 107 extends to one side of the middle of the material chute 104. The bottom side wall of the stamping column 105 is bolted to the lower paddle 108, and the lower paddle 108 is located above the inlet of the die base 203. The upper paddle 107 is installed below the stamping column 105 to guide the material in the middle of the material chute 104 and maintain smooth material transportation. When the stamping column 105 moves to the lowest point for stamping and bending operations, the side wall of the lower paddle 108 will contact the bottom side wall of the material chute 104, blocking the discharge port of the material chute 104, so that the material in the middle of the material chute 104 will not continue to fall during the stamping process, thereby ensuring the safety of the stamping process.

[0027] Furthermore, a main shaft 109 is connected to the middle position of the top of the support column 102 through a bearing, and a cam 110 is connected to the middle key of the main shaft 109. The side wall of the cam 110 is in rotational contact with the upper end surface of the stamping column 105. The inner wall of the support column 102 is connected to a second tension spring 111 through bolts, and the lower end of the second tension spring 111 is fixedly installed on the upper end side wall of the stamping column 105. The main shaft 109 with the cam 110 is installed on the side wall of the support column 102. The main shaft 109 is driven to rotate by a control device, and can drive the stamping column 105 along the curved surface of the side wall of the cam 110. Under the tension of the second tension spring 111, it continuously descends and rises, and reciprocates to complete the stamping operation of the button component.

[0028] Furthermore, a turntable 112 is keyed to the end of the spindle 109, and a motor 113 is bolted to the rear end side wall of the support column 102. A pulley 114 matching the turntable 112 is keyed to the spindle end of the motor 113, and the turntable 112 and the pulley 114 are connected via a belt 115. The turntable 112 is installed at the end of the spindle 109. When in use, the power supply of the motor 113 installed at the rear end of the support column 102 is turned on, and the motor 113 drives the turntable 112 to rotate through the pulley 114 and the belt 115, thereby driving the spindle 109 to rotate, and the cam 110 installed in the middle of the spindle 109 drives the stamping component to be pressed down to control the operation of the bending machine.

[0029] Specifically, a top block 207 is movably inserted in the middle position of the other side of the fixed seat 205, and the end of the top block 207 extends to the center of the die base 203, and the end of the top block 207 corresponds to the position of the die head 202. A movable top block 207 is installed in the middle of the fixed seat 205. The top block 207 is used to cooperate with the die base 203 to limit the nail button, preventing the nail button punched and bent by the die head 202 from loosening from the middle of the die base 203, and can play a buffering role with the nail button at the end of the die head 202 to ensure stable molding of the nail button.

[0030] Furthermore, the outer wall of the fixed seat 205 is connected to a second spring 208 by bolts, and the end of the second spring 208 is connected to the side wall of the top block 207. The second spring 208 is added to the outer wall of the fixed seat 205 to connect with the top block 207. When the bending action is completed, the top block 207, along with the connecting rod 201, cooperates with the die head 202 to push the nail button to the middle of the die base 203. At this time, the top block 207 will be pushed forward a certain distance. At this time, the second spring 208 is compressed and stores a certain elastic potential energy. When the die head 202 breaks away from contact with the nail button, the second spring 208 will release the stored elastic potential energy, and push the bent nail button out from the middle of the die base 203 along the inner wall of the die base 203, completing the blanking action, and used for the next nail button forming.

[0031] Specifically, a claw 209 is hinged in the middle of the fixed seat 205, and the end of the claw 209 extends to the side wall below the feed chute 104 and above the feed inlet of the die base 203. The inner wall of the claw 209 is provided with a rack structure that meshes with the side wall of the connecting rod 201, and the middle position of the two groups of claws 209 is connected by a third tension spring 210. The claw 209 connected by the third tension spring 210 is installed in the middle of the fixed seat 205 and docked with the die base 203. The side wall and the side wall of the connecting rod 201 are combined by setting an engaged rack structure. When the connecting rod 201 extends forward, it will drive the claw 209 to move outward through the rack, open at the upper end of the die base 203, and no longer jam the feeding port of the feeding trough 104, which is convenient for feeding. After the stamping and bending action is completed, the connecting rod 201 retreats, and the third tension spring 210 assists the claw 209 to move toward the inner wall and re-jam between the die base 203 and the feeding trough 104, which is convenient for the next bending action.

[0032] Working principle: When in use, the power supply of the motor 113 installed at the rear end of the support column 102 is turned on, and the motor 113 will drive the turntable 112 to rotate through the pulley 114 and the belt 115, thereby driving the main shaft 109 to rotate, and the cam 110 installed in the middle of the main shaft 109 drives the stamping component to be pressed down. The main shaft 109 rotates and can drive the stamping column 105 along the arc surface of the side wall of the cam 110. Under the tension of the second tension spring 111, it continuously descends and rises, and reciprocates. When the stamping column 105 is pressed down, the ejector rod 106 installed at the bottom of the stamping column 105 will cooperate to press the plug block 204 downward. At this time, the first spring 206 installed at the bottom of the plug block 204 will Under the force compression, the first tension spring 211 will stretch a certain length as the connecting rod 201 moves, and will store a certain amount of elastic potential energy. The plug block 204 applies a lateral thrust to the connecting rod 201 along the side wall slope, and drives the die head 202 to extend forward through the connecting rod 201 and insert it into the middle of the die base 203, and the button material falling from the discharge chute 104 in the middle of the die base 203 is stamped and bent along the side wall of the die base 203. During the bending process, the upper driving component moves to the lowest point of the reciprocating motion, and then it will bring the stamping column 105 up, so that when the ejector rod 106 component rises, the stress state on the upper end surface of the plug block 204 disappears, and at this time the first spring 206 will release the elastic potential energy stored previously to drive The insert block 204 moves up to the top of the connecting rod 201, so that the inclined surface of the side wall of the insert block 204 is out of contact with the side wall of the connecting rod 201. At the same time, the first tension spring 211 will also release the stored elastic potential energy, pulling the connecting rod 201 to return to its original relaxed position, which is convenient for the next stamping and bending operation. A clamping claw 209 connected by a third tension spring 210 is installed in the middle of the fixed seat 205 to dock with the die base 203. The inner side wall of the end of the clamping claw 209 and the side wall of the connecting rod 201 are combined by setting a meshing rack structure. When the connecting rod 201 extends forward, the clamping claw 209 will be driven to move outward through the rack and open at the upper end of the die base 203, no longer blocking the discharge port of the discharge chute 104, which is convenient for discharge. After the stamping and bending action is completed, the connecting rod 201 retreats, and the third tension spring 210 assists the claw 209 to move toward the inner wall and is re-stuck between the die base 203 and the feed trough 104. When the bending action is completed, the top block 207, along with the connecting rod 201, cooperates with the die head 202 to push the nail button to the middle of the die base 203. At this time, the top block 207 will be pushed forward a certain distance. At this time, the second spring 208 is compressed and stores a certain elastic potential energy. When the die head 202 breaks away from the contact with the nail button, the second spring 208 will release the stored elastic potential energy and push the bent nail button out from the middle of the die base 203 along the inner wall of the die base 203, completing the feed action and cooperating with the next nail button forming.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending mechanism on a button sewing machine, comprising a punching and blanking assembly (100) and a bending assembly (200), characterized in that: The stamping blanking assembly (100) comprises a base (101), a support column (102), a support platform (103), a blanking trough (104) and a stamping column (105); the support platform (103) is fixedly mounted on the upper end of the base (101); the support column (102) is connected to the middle position of the upper end of the support platform (103) by bolts; the blanking trough (104) is connected to the front of the support platform (103) by bolts; and the stamping column (105) is slidably mounted in the middle of the support column (102); The bending assembly (200) comprises a connecting rod (201), a die head (202), a die base (203) and an insert block (204); a fixing base (205) is connected to the middle position of the support platform (103) by bolts; the connecting rod (201) is movably inserted in the middle of the fixing base (205); the die head (202) is connected to one end of the connecting rod (201) by bolts; the die base (203) is connected to the other side of the fixing base (205) by bolts; the die base (203) is located below the feed chute (104); and the insert block (204) is movably inserted in the connecting rod (201). The fixing seat (205) is in the middle slot, and a first spring (206) is connected to the inside of the fixing seat (205) by bolts, the upper end of the first spring (206) is clamped on the bottom of the plug block (204), the side wall of the plug block (204) is provided with an inclined surface structure matching the side wall of the middle slot of the connecting rod (201), the bottom side wall of the stamping column (105) is threadedly connected with a push rod (106), the push rod (106) is located at the upper end of the plug block (204), one side of the fixing seat (205) is connected to a first tension spring (211) by bolts, and the other end of the first tension spring (211) is clamped on the side wall of the connecting rod (201).

2. The bending mechanism on the button sewing machine according to claim 1, characterized in that: An upper paddle (107) is connected to the middle position of the lower end of the punching column (105) by bolts, and the end of the upper paddle (107) extends to one side of the middle of the discharge chute (104). A lower paddle (108) is connected to the side wall of the bottom of the punching column (105) by bolts, and the lower paddle (108) is located above the feed opening of the die base (203).

3. The bending mechanism on the button sewing machine according to claim 1, characterized in that: The middle position of the top of the support column (102) is connected to a main shaft (109) via a bearing, the middle key of the main shaft (109) is connected to a cam (110), the side wall of the cam (110) is in rotational contact with the upper end surface of the punching column (105), the inner wall of the support column (102) is connected to a second tension spring (111) via bolts, and the lower end of the second tension spring (111) is fixedly mounted on the upper end side wall of the punching column (105).

4. The bending mechanism on the button sewing machine according to claim 3 is characterized in that: The end of the main shaft (109) is key-connected with a turntable (112); the rear end side wall of the support column (102) is bolt-connected with a motor (113); the main shaft end of the motor (113) is key-connected with a pulley (114) matching the turntable (112); the turntable (112) and the pulley (114) are connected to each other via a belt (115).

5. The bending mechanism on the button sewing machine according to claim 1, characterized in that: A top block (207) is movably inserted in the middle of the other side of the fixed seat (205), and the end of the top block (207) extends to the center of the die seat (203), and the end of the top block (207) corresponds to the position of the die head (202).

6. The bending mechanism on the button sewing machine according to claim 5, characterized in that: The outer side wall of the fixing seat (205) is connected to a second spring (208) via bolts, and the end of the second spring (208) is connected to the side wall of the top block (207).

7. The bending mechanism on a button sewing machine according to claim 1, characterized in that: A clamping claw (209) is hingedly connected to the middle position of the fixed seat (205), and the end of the clamping claw (209) extends to the side wall below the feed chute (104) and above the feed inlet of the mold base (203). The inner side wall of the clamping claw (209) is provided with a rack structure that meshes with the side wall of the connecting rod (201), and the middle positions of the two groups of the clamping claws (209) are connected by a third tension spring (210).

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