Feeding ratchet wheel module

Abstract

The feeding ratchet wheel module comprises a shell, a ratchet wheel, an air cylinder and a pawl, the ratchet wheel is arranged in the shell and rotationally connected with the shell through a bearing, the middle of the pawl is rotationally connected with the shell, one end of the pawl is provided with a first abutting portion, and the other end of the pawl is provided with a second abutting portion. The first abutting part is connected with the shell through an elastic assembly, the second abutting part abuts against ratchets of the ratchet wheel, under the tensioning effect of the elastic assembly, the second abutting part keeps abutting against the ratchets, the air cylinder is arranged on the shell, the tail end of an extension rod of the air cylinder abuts against the first abutting part, and the extension rod of the air cylinder extends out to drive the second abutting part to be away from the ratchets. The feeding ratchet wheel module provided by the utility model can be quickly switched to a feeding stopping state, is suitable for being used when a cold header breaks down and is debugged, and is simple to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to intermittent feeding mechanism technical field, especially a kind of feeding ratchet module. BACKGROUND

[0002] Intermittent feeding mechanism is applied to cold header, realizes the wire rod with certain length to be transported into cold header intermittently, and the wire rod is cold extruded in cold header, to be processed into various standard, non-standard fastener and accessory etc..Most intermittent feeding mechanisms use ratchet mechanism to drive feeding wheel to realize the transportation of wire rod, but the existing ratchet mechanism structure is complex, when cold header fails, intermittent feeding mechanism cannot stop wire rod transportation, leading to wire rod being continuously transported into cold header, and further leading to the damage of mould and each component;In addition, when debugging cold header, the operation process of stopping feeding of intermittent feeding mechanism is more complex.

[0003] It can be seen that the prior art still needs to be improved and improved. UTILITY MODEL CONTENT

[0004] In view of the above deficiencies of prior art, the purpose of the utility model is to provide feeding ratchet module, to solve the technical problem of not stopping feeding in time in prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of feeding ratchet module, including shell, ratchet, cylinder and pawl, the ratchet is located in shell, and is rotatably connected with shell by bearing, the middle part of pawl is rotatably connected with shell, one end of pawl is equipped with first abutment portion, and the other end is equipped with second abutment portion, first abutment portion is connected with shell by elastic component, second abutment portion is in abutment with ratchet gear, under the tension effect of elastic component, second abutment portion keeps in abutment with ratchet gear, cylinder is located on shell, and the end of the extension rod of cylinder is in abutment with first abutment portion, the extension rod of cylinder is extended to drive second abutment portion away from ratchet gear.

[0007] Further, the shell is provided with a mounting hole, the ratchet and the bearing are arranged in the mounting hole, and the wall portion of the shell is provided with a notch in communication with the mounting hole, the second abutment portion is in abutment with the ratchet gear through the notch.

[0008] Further, the wall portion of the shell is provided with an oil injection hole in communication with the mounting hole.

[0009] Further, the ratchet is provided with shaft portions on both sides, the bearing is correspondingly mounted on the shaft portions, the ratchet is provided with a connecting hole and a key groove on the wall portion of the connecting hole.

[0010] Furthermore, the housing is provided with a mounting seat, the cylinder body of the cylinder is disposed on the mounting seat, and the elastic component is used to connect the first abutment part and the mounting seat.

[0011] Furthermore, the elastic component includes a tension spring, a first screw, and a second screw. The first screw passes through one end of the tension spring and connects to the first abutment portion, while the second screw passes through the other end of the tension spring and connects to the mounting base.

[0012] Furthermore, the second abutment is detachably connected to a locking block, which abuts against the ratchet.

[0013] Furthermore, the second abutment portion has a waist hole, which is connected to the locking block by a third screw.

[0014] Beneficial effects:

[0015] Compared with the prior art, the present invention provides a feeding ratchet module with the following advantages: (1) It adopts a modular design to facilitate the replacement of the components as a whole, so that the cold heading machine can quickly return to working status; (2) Under the tensioning action of the elastic component, the second abutting part is always in contact with the ratchet to realize the function of intermittently feeding wire; when the cylinder drives the pawl away from the ratchet, it realizes timely stopping of feeding wire, which is suitable for emergency stop when the cold heading machine fails and for use during the debugging of the cold heading machine, so that other components of the cold heading machine can stop feeding wire into the cold heading machine during operation, and the operation is simple. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the feeding ratchet module provided by this utility model;

[0017] Figure 2 An installation diagram of the feeding ratchet module provided by this utility model;

[0018] Figure 3 Exploded view of the feeding ratchet module provided by this utility model;

[0019] Figure 4 A main sectional view of one embodiment of the elastic component in the feeding ratchet module provided by this utility model;

[0020] Figure 5 This is a main sectional view of another embodiment of the elastic component in the feeding ratchet module provided by this utility model.

[0021] Reference numerals: housing 1, mounting hole 11, notch 12, oil filling hole 13, first connecting part 14, first connecting lug 141, first short shaft 142, second connecting part 15, second connecting lug 151, second short shaft 152, ratchet 2, ratchet tooth 21, shaft part 22, connecting hole 23, keyway 24, cylinder 3, pawl 4, first abutment part 41, second abutment part 42, locking block 43, waist hole 44, bearing 5, elastic component 6, tension spring 61, first screw 62, second screw 63, pull rod 64, sliding sleeve 65, spring 66, nut 67, mounting base 7, drive shaft a, output connecting rod b. Detailed Implementation

[0022] This utility model provides a feeding ratchet module. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] Please see Figures 1 to 4 As shown, this utility model provides a feeding ratchet module, including a housing 1, a ratchet 2, a cylinder 3, and a pawl 4. The ratchet 2 is disposed inside the housing 1 and is rotatably connected to the housing 1 through a bearing 5. The middle part of the pawl 4 is rotatably connected to the housing 1. One end of the pawl 4 is provided with a first abutting part 41, and the other end is provided with a second abutting part 42. The first abutting part 41 is connected to the housing 1 through an elastic component 6. The second abutting part 42 abuts against the ratchet tooth 21 of the ratchet 2. Under the tensioning action of the elastic component 6, the second abutting part 42 remains in contact with the ratchet tooth 21. The cylinder 3 is disposed on the housing 1, and the end of the extension rod of the cylinder 3 abuts against the first abutting part 41. The extension rod of the cylinder 3 extends and drives the second abutting part 42 away from the ratchet tooth 21.

[0024] In practical use, the feeding ratchet module provided by this utility model is installed on an intermittent feeding mechanism. The ratchet 2 is connected to the transmission shaft a of the intermittent feeding mechanism. The housing 1 is provided with a first connecting part 14, which is connected to the output connecting rod b of the cold heading machine. The output connecting rod b drives the housing 1 to reciprocate around the center line of the ratchet 2. Figure 4 For example, when the output link b drives the housing 1 to rotate counterclockwise, the second abutment part 42 abuts against the ratchet 21, thereby driving the ratchet 2 to rotate counterclockwise, which in turn drives the intermittent feeding mechanism to feed wire to the right. When the output link b drives the housing 1 to rotate clockwise, the second abutment part 42 slides along the ratchet 21 on the ratchet 2, and the ratchet 2 and the transmission shaft a are in a stationary state, thereby stopping the intermittent feeding mechanism from feeding wire. Under the tensioning action of the elastic component 6, the pawl 4 ensures that the second abutment part 42 is always in contact with the ratchet 21. When the output link b drives the housing 1 to swing back and forth, the wire is intermittently fed into the cold heading machine.

[0025] When the cold heading machine malfunctions and needs to be stopped urgently, or when the cold heading machine needs to be adjusted, the extension rod of cylinder 3 extends and pushes out the first abutment part 41. The pawl 4 swings upward at an angle, so that the second abutment part 42 moves away from the ratchet 2. At this time, when the output connecting rod b drives the housing 1 to swing back and forth, it will not drive the ratchet 2 to rotate, thus stopping the feeding of wire into the cold heading machine. The operation is simple.

[0026] In a preferred embodiment, see [reference] Figure 3 , 4 The housing 1 has a mounting hole 11, within which the ratchet 2 and bearing 5 are both located. The wall of the housing 1 has a notch 12 communicating with the mounting hole 11, and the second abutting part 42 abuts against the ratchet 21 through the notch 12. This design makes the feeding ratchet module more compact. Furthermore, the ratchet 2's placement within the housing 1 protects it and prevents dust and debris from adhering to its surface, thus extending its service life. Additionally, the feeding ratchet module employs a modular design, allowing for complete replacement of the entire module once the ratchet 2's teeth 21 wear down, enabling the cold heading machine to quickly return to operation.

[0027] Specifically, see Figure 3 The first connecting part 14 is located on the outer wall of the housing 1 away from the notch 12. The first connecting part 14 includes two first connecting ears 141 and a first short shaft 142 located between the two first connecting ears 141. The output link b is rotatably connected to the first short shaft 142 to drive the housing 1 to reciprocate around the center line of the ratchet 2.

[0028] Preferably, see Figure 3 The housing 1 is provided with a second connecting part 15 located above the notch 12. The second connecting part 15 includes two second connecting ears 151 and a second short shaft 152 located between the two second connecting ears 151. The middle part of the pawl 4 is rotatably connected to the second short shaft 152. The housing 1 drives the pawl 4 to swing back and forth around the center line of the ratchet 2. The pawl 4 can rotate independently around the axis of the second short shaft 152 to make the second abutting part 42 approach or move away from the ratchet 21.

[0029] In a preferred embodiment, see [reference] Figure 3 , 4 The wall of the housing 1 has an oil injection hole 13 that communicates with the mounting hole 11. The oil injection hole 13 facilitates the injection of grease into the surface of the ratchet 2. During intermittent feeding, this helps the pawl 4 slide along the ratchet teeth 21 and reduces wear on the ratchet teeth 21, thereby improving the service life of the ratchet 2.

[0030] It should be noted that multiple ratchet teeth 21 are arranged circumferentially on the surface of the ratchet 2. The more ratchet teeth 21 there are, the higher the feeding accuracy of the intermittent feeding mechanism, but the smaller the size of the ratchet teeth 21. Therefore, in actual use, the number of ratchet teeth 21 should be determined according to production requirements.

[0031] In a preferred embodiment, see [reference] Figure 2 , 3 The ratchet 2 has shaft portions 22 on both sides, and bearings 5 ​​are correspondingly mounted on the shaft portions 22. In this embodiment, one bearing 5 is mounted on each shaft portion 22 to achieve a rotatable connection between the ratchet 2 and the housing 1. The ratchet 2 has a connecting hole 23 and a keyway 24 located on the wall of the connecting hole 23. The connecting hole 23 is mounted on the drive shaft a, and the ratchet 2 is fixed in position by the cooperation of the flat key and the keyway 24, so that the ratchet 2 drives the drive shaft a to rotate.

[0032] In a preferred embodiment, see [reference] Figure 1 , 3 The housing 1 is provided with a mounting base 7, and the cylinder body of the cylinder 3 is mounted on the mounting base 7. The elastic component 6 is used to connect the first abutment part 41 and the mounting base 7. By setting the mounting base 7, a stable connection between the cylinder 3 and the elastic component 6 is achieved. Under the tensioning action of the elastic component 6, the second abutment part 42 of the pawl 4 is always in contact with the ratchet 21, so that the intermittent feeding mechanism is in a state of intermittently feeding wire into the cold heading machine. When the extension rod of the cylinder 3 extends, it drives the pawl 4 away from the ratchet 2, and the intermittent feeding mechanism stops feeding wire into the cold heading machine. This is suitable for emergency stop when the cold heading machine malfunctions and for use when debugging the cold heading machine.

[0033] Further, see Figure 4 The elastic component 6 includes a tension spring 61, a first screw 62, and a second screw 63. The first screw 62 passes through one end of the tension spring 61 and connects to the first abutment portion 41, while the second screw 63 passes through the other end of the tension spring 61 and connects to the mounting base 7. Under the tension of the tension spring 61, the pawl 4 maintains a downward swinging tendency, thereby ensuring that the second abutment portion 42 always abuts against the ratchet tooth 21. When it is necessary to stop feeding the wire, the extension rod of the cylinder 3 extends and drives the pawl 4 to swing upward, the tension spring 61 is stretched, and the second abutment portion 42 moves away from the ratchet tooth 21.

[0034] In another embodiment, see Figure 5The elastic component 6 includes a pull rod 64, a sliding sleeve 65, and a spring 66. One end of the pull rod 64 is rotatably connected to the first abutment part 41, and the other end is connected to a nut 67. The sliding sleeve 65 is mounted on the mounting base 7, and the pull rod 64 is slidably connected to the sliding sleeve 65. The spring 66 is sleeved on the pull rod 64, and the two ends of the spring 66 abut against the sliding sleeve 65 and the nut 67, respectively. Due to its elastic extension, the spring 66 drives the pull rod 64 to move away from the first abutment part 41 and pulls the first abutment part 41, so that the pawl 4 maintains a downward swinging tendency.

[0035] In a preferred embodiment, see [reference] Figure 3 The second abutment part 42 is detachably connected to a locking block 43, which abuts against the ratchet 21. With the above configuration, when the locking block 43 is worn, it is easy to replace the locking block 43 without replacing the entire ratchet 4. The operation is simple and saves materials.

[0036] Furthermore, the second abutment part 42 has a waist hole 44, which is connected to the locking block 43 by a third screw. Preferably, there are two waist holes 44, and a third screw is installed in each waist hole 44. The third screw cooperates with the waist hole 44 to adjust the installation position of the locking block 43 so that the locking block 43 can abut against the ratchet 21 and drive the ratchet 2 to rotate. At the same time, it can also slide along the ratchet 21.

[0037] In summary, this utility model utilizes a ratchet 2 rotatably mounted inside the housing 1. Under the tensioning action of the elastic component 6, the second abutting part 42 of the pawl 4 is always in contact with the ratchet tooth 21 of the ratchet 2, thereby intermittently feeding wire into the cold heading machine. By pushing the first abutting part 41 through the extension rod of the cylinder 3, the pawl 4 swings upward to make the second abutting part 42 move away from the ratchet 2, thereby timely stopping the feeding of wire into the cold heading machine. This invention is suitable for use during emergency stops and adjustments of the cold heading machine.

[0038] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A feeding ratchet module, characterized in that, The device includes a housing, a ratchet, a cylinder, and a pawl. The ratchet is located inside the housing and is rotatably connected to the housing via a bearing. The middle part of the pawl is rotatably connected to the housing. One end of the pawl has a first abutment part, and the other end has a second abutment part. The first abutment part is connected to the housing via an elastic component, and the second abutment part abuts against the ratchet teeth. Under the tension of the elastic component, the second abutment part remains in contact with the ratchet teeth. The cylinder is located on the housing, and the end of the cylinder's extension rod abuts against the first abutment part. The extension rod of the cylinder extends and drives the second abutment part away from the ratchet teeth.

2. The feeding ratchet module according to claim 1, characterized in that, The housing has a mounting hole, and the ratchet and bearing are both located in the mounting hole. The wall of the housing has a notch that communicates with the mounting hole, and the second abutting part abuts against the ratchet through the notch.

3. The feeding ratchet module according to claim 2, characterized in that, The wall of the housing has an oil injection hole that communicates with the mounting hole.

4. The feeding ratchet module according to claim 1, characterized in that, The ratchet has shafts on both sides, bearings are mounted on the shafts, the ratchet has a connecting hole and a keyway on the wall of the connecting hole.

5. The feeding ratchet module according to claim 1, characterized in that, The housing is provided with a mounting seat, the cylinder body of the cylinder is located on the mounting seat, and the elastic component is used to connect the first abutment part and the mounting seat.

6. The feeding ratchet module according to claim 5, characterized in that, The elastic component includes a tension spring, a first screw, and a second screw. The first screw passes through one end of the tension spring and connects to a first abutment portion, while the second screw passes through the other end of the tension spring and connects to a mounting base.

7. The feeding ratchet module according to claim 1, characterized in that, The second abutment is detachably connected to a locking block, which abuts against the ratchet.

8. The feeding ratchet module according to claim 7, characterized in that, The second abutment part has a waist hole, which is connected to the locking block by a third screw.

Images