Electromagnet brake wire feeding mechanism

Abstract

This utility model discloses a wire feeding mechanism with an electromagnet brake, relating to the field of wire feeding equipment technology. It includes a passive wire roll for supplying binding wire to a binding gun and rotating it, and a locking member for locking the position of the passive wire roll. A follower disk is coaxially mounted on the passive wire roll, and multiple teeth are arranged in a circumferential array on the outer edge of the follower disk. An interlocking area is formed between any two adjacent teeth. The locking member has a stop bar capable of curved movement, the movement path of which intersects with the movement path of the interlocking area. This utility model, by designing a passive wire roll, relies solely on the traction force of the binding wire to achieve rotary feeding, simplifying the power system structure and reducing energy consumption. Unlike the coaxial locking method for passive wire rolls in the prior art, this application's outer contour locking method for passive wire rolls requires only a simple device to apply a small braking force to achieve braking.

Description

Technical Field

[0001] This utility model relates to the field of wire feeding equipment technology, specifically to a wire feeding mechanism with an electromagnet brake. Background Technology

[0002] When using a binding gun for binding operations, the wire feeding mechanism needs to continuously supply binding wire to the binding gun to ensure the continuity of the operation. Since the binding wire is dragged by the binding gun during the binding process, it can assist in the passive and uniform release of the wire from the spool. Therefore, in some applications, to simplify the structure and reduce costs, only a freely rotating spool is used as the wire feeding device. However, this simplified solution has significant drawbacks in practical applications: when the amount of binding wire on the spool decreases, leading to a reduction in overall inertia, or when the friction between the spool and the support shaft is insufficient (the spool rotates too smoothly), the dragging of the binding wire by the binding gun after completion can easily cause the spool to rotate excessively. At this time, the binding wire continues to be released under inertia, forming a redundant drooping section. Coupled with the lack of a drive source to actively control the wire release rhythm, it is very easy for tangling and knotting to occur due to the swinging and stacking of the slack section. This can lead to interruptions in the binding process or, in severe cases, wire breakage or equipment jamming.

[0003] The improved wire feeding schemes described above typically employ a coordinated design of a rotary wire roll and a drive source (such as a geared motor): the wire roll is wound with binding wire, one end of which extends to the working end of the binding gun. When the binding gun consumes the binding wire, the drive source releases the binding wire synchronously by precisely controlling the rotation speed of the wire roll. However, the selection of drive sources such as geared motors not only increases equipment costs but also requires corresponding voltage and other power resources to operate, resulting in higher operating and maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a wire feeding mechanism with an electromagnet brake. Based on the design of a passive wire roll, this wire feeding mechanism uses a low-cost and simple locking component that acts in a curved manner on the outer edge of the passive wire roll to achieve convenient locking of the position of the passive wire roll.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] An electromagnet-brake wire feeding mechanism includes a passive wire roll for supplying binding wire to a binding gun and rotating it, and a locking member for locking the position of the passive wire roll. A follower disk is coaxially arranged on the passive wire roll, and multiple teeth are arranged in a circumferential array on the outer edge of the follower disk. An interpenetration area is formed between any two adjacent teeth. The locking member has a stop bar that can make curved movements. The movement path of the stop bar intersects with the movement path of the interpenetration area, so that the stop bar that makes curved movements can be inserted into the interpenetration area.

[0007] As a further embodiment of this utility model: the wire feeding mechanism also includes a carrier plate for the passive wire roll to be rotated and installed. A transfer shaft is rotatably arranged on the carrier plate, and the axial direction of the transfer shaft is arranged perpendicular to the axial direction of the passive wire roll. The stop rod is provided at one end of the transfer shaft near the follower disk so that the stop rod can rotate with the transfer shaft in a curved motion.

[0008] As a further embodiment of this utility model: the end of the stop bar away from the adapter shaft intersects with the active path of the interpenetration area, and the end is set in a bent state. The size of the bent end is smaller than the size of the interpenetration area, so that the bent end can be inserted into the interpenetration area.

[0009] As a further embodiment of this utility model: the carrier plate is provided with a driving component for driving the adapter shaft to rotate.

[0010] As a further embodiment of this utility model: the driving component includes a push-pull electromagnet mounted on a carrier plate. The push-pull electromagnet has a pin that performs linear motion. The axial direction of the pin is arranged perpendicular to the axial direction of the adapter shaft. A connecting lug is movably mounted on the pin and is connected to the adapter shaft so that the rotation of the adapter shaft can be achieved by relying on the linear motion of the pin.

[0011] As a further embodiment of this utility model: the passive wire roll includes a spool for winding the binding wire and end discs coaxially disposed at both ends of the spool, wherein the outer edge of any of the end discs is provided with a plurality of teeth arranged in a circumferential array to form the follower disc.

[0012] As a further embodiment of this utility model: the carrier plate is provided with a shaft for rotating the reel, and the shaft is provided with a clamping member for axially limiting the reel.

[0013] As a further embodiment of this utility model: the clamping member includes a top ring and a retaining sleeve both sleeved on the shaft body, and the top ring is located between the retaining sleeve and the scroll and can abut against one end of the scroll body, and the retaining sleeve abuts against the top ring and can be fixedly installed on the shaft body to lock the position of the top ring.

[0014] As a further embodiment of this utility model: a hollow tube is coaxially arranged in the middle of the scroll and sleeved on the shaft body, and multiple protrusions are arranged in a circumferential array on the inner side of the hollow tube. The virtual circle formed by the near ends of the multiple protrusions is adapted to the diameter of the cross-sectional circle of the shaft body. The end of the top ring near the hollow tube is designed to be constricted and forms a constricted end, and the constricted end is adapted to the diameter of the hollow tube to achieve the contact and limiting of the end of the hollow tube against the constricted end.

[0015] As a further embodiment of this utility model, the wire feeding mechanism also includes a limiting component disposed on the carrier plate and between the passive wire roll and the binding gun. The limiting component is a frame with a cylinder inside, and the cylinder is used to support the binding wire.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This application designs a passive wire roll that relies solely on the traction force of the binding wire to achieve rotary feeding, simplifying the power system structure and reducing energy consumption. Unlike the coaxial locking method used in existing technologies for passive wire rolls, this application's outer contour locking method requires only a simple device to apply a small braking force to achieve braking. Simultaneously, the circumferential teeth of the follower disc cooperate with the curved telescopic pin of the locking component. When the pin's curve inserts into the intersecting area between the teeth, the wire roll position can be instantly locked, effectively preventing the binding wire from springing back or loosening, ensuring continuous wire feeding. Compared to the high-cost drive source used in existing technologies, the locking component in this application not only achieves convenient locking of the passive wire roll but is also inexpensive and simple in structure. Furthermore, during use, some locking components can be operated with low pressure, reducing operating costs.

[0018] 2. By integrating the follower plate with the end plate, the teeth are directly machined on the outer edge of the end plate, eliminating the need for separate follower plate installation, reducing the number of parts and assembly complexity, and lowering manufacturing costs.

[0019] 3. The rotational motion of the adapter shaft is directly converted into the curved motion of the stop lever, reducing intermediate transmission links and improving braking response speed.

[0020] 4. The bending shape of the stop bar can compensate for assembly errors, ensuring that its end can still be accurately inserted into the interlocking area under the condition of high-speed movement of the passive wire coil, and achieve accurate locking; at the same time, the bending structure design absorbs impact energy through deformation, extending the service life of the stop bar. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A three-dimensional structural diagram of the unassembled passive wire roll in its current state;

[0024] Figure 3 This is a three-dimensional structural diagram of the adapter shaft and stop plate in this utility model;

[0025] Figure 4 This is a schematic diagram of the passive wire roll three-dimensional structure in this utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the passive wire roll three-dimensional structure in this utility model. Figure 2 .

[0027] In the diagram: 1. Passive wire spool; 101. Reel; 102. End plate; 2. Stop bar; 3. Follower plate; 301. Gear; 4. Carrier plate; 5. Adapter shaft; 6. Push-pull electromagnet; 601. Pin; 7. Connecting ear; 8. Shaft body; 9. Top ring; 10. Sleeve; 11. Hollow tube; 12. Protrusion; 13. Limiting component; a. Bundling gun. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-5 As shown, a wire feeding mechanism with an electromagnet brake is intended to continuously supply binding wire to a binding gun a located on a component such as a robotic arm. Therefore, the wire feeding mechanism can also be adapted to be installed on the robotic arm so that the binding gun a and the wire feeding mechanism form a whole.

[0030] Specifically, the wire feeding mechanism in this application includes a carrier plate 4 fixedly mounted on a robotic arm. A passive wire roll 1 is rotatably mounted on the carrier plate 4, and a certain amount of binding wire is wound on the passive wire roll 1. At the same time, the carrier plate 4 is also provided with a locking device for locking the position of the passive wire roll 1. When the binding gun a is working, its own certain drag force can drive the passive wire roll 1 to rotate, so as to achieve continuous feeding. When the binding gun a stops working, in order to prevent the passive wire roll 1 from rotating under inertia, the locking device is used to lock the position of the passive wire roll 1 at this time, so as to avoid the passive wire roll 1 rotating and causing redundant drooping of the binding wire, thus ensuring a continuous and good supply condition.

[0031] To achieve the locking effect on the passive wire roll 1, a follower disk 3 is coaxially arranged on the passive wire roll 1. The outer edge of the follower disk 3 is circumferentially arrayed with multiple teeth 301, and an interlocking area is formed between any two adjacent teeth 301. The locking component includes a stop bar 2 capable of curved movement and a driving component for driving the stop bar 2. The driving component can be a telescopic rod or an electromagnet, etc., as in the prior art. The movement path of the stop bar 2 intersects with the movement path of the interlocking area. Therefore, when the stop bar 2 is driven to move along its movement path, it can intersect with the rotation path of the follower disk 3 and be inserted into any interlocking area on the follower disk 3, thereby locking the position of the passive wire roll 1.

[0032] Compared to existing technologies that lock the position of the passive wire roll 1 by setting a drive source (such as a geared motor), this application uses a locking device to lock the passive wire roll 1. This not only reduces the cost of use and maintenance—for example, when the drive device in this application is a push-pull electromagnet 6, taking model LSD-0826B-24V as an example, the required power supply voltage is only 24V—but also the locking device in this application has a simple structure and can be easily replaced. Unlike the coaxial locking method of the passive wire roll 1 in existing technologies, the outer contour locking method of this application only requires a simple device to apply a small braking force to achieve braking.

[0033] like Figures 2-3 As shown, based on the locking method of the stop lever 2 making curved movements, this application proposes a structure for driving the stop lever 2 to make curved movements, specifically configured as follows:

[0034] (1) A rotatable adapter shaft 5 is mounted on the carrier plate 4. A driving component is used to drive the adapter shaft 5 to rotate. It should be noted that the axial direction of the adapter shaft 5 is spatially perpendicular to the axial direction of the passive wire roll 1. A stop rod 2 is mounted on the end of the adapter shaft 5 near the follower plate 3. Therefore, when the adapter shaft 5 rotates, it can drive the stop rod 2 to move. The rotation of the stop rod 2 can move into the movement path of the insertion area, thereby locking the insertion in the insertion area.

[0035] (2) Furthermore, in order to optimize the locking effect of the stop bar 2 on the intersecting area, this application sets one end of the stop bar 2 away from the adapter shaft 5 to intersect the active path of the intersecting area, and the end is set in a bent state. The size of the bent end is smaller than the size of the intersecting area, so that the bent end can be inserted into the intersecting area.

[0036] (3) Based on the setting of the driving component as a push-pull electromagnet 6, the push-pull electromagnet 6 has a pin 601 that performs linear motion. The axial direction of the pin 601 is arranged perpendicular to the axial direction of the adapter shaft 5. A connecting lug 7 is movably provided on the pin 601 and is connected to the adapter shaft 5 so that the rotational motion of the adapter shaft 5 can be achieved by the linear motion of the pin 601. Figure 3 In the state shown, when the pin 601 moves in a straight line from left to right, it can drive the connecting ear 7 and the adapter shaft 5 to rotate clockwise. Therefore, the stop bar 2 located on the left side of the adapter shaft 5 will move accordingly, and the bent end of the stop bar 2 will move toward the movement path of the insertion area until the insertion locking of the insertion area is achieved.

[0037] This application provides a structure for driving the stop bar 2 to move in a curved manner, as described above. This structure achieves the rotation of the adapter shaft 5 by combining the connecting lug 7 and the pin 601, thereby realizing the curved movement of the stop bar 2. Furthermore, by optimizing the bending of the end of the stop bar 2, a more stable and convenient insertion into the intersecting area is achieved.

[0038] like Figures 4-5 As shown, one design for the passive wire roll 1's structure is as follows: The passive wire roll 1 includes a roll 101 and end plates 102 disposed at both ends of the roll 101. The roll 101 is used for winding the binding wire, and the end plates 102 are used to limit the axial displacement of the binding wire, ensuring that the binding wire is wound neatly. The follower plate 3 is coaxially disposed on the roll 101. To save materials, either of the end plates 102 can be designed as the follower plate 3. When the passive wire roll 1 rotates, multiple interlacing areas rotate around the roll 101 as the center, and the movement path of the bent end of the stop rod 2 intersects with the movement paths of multiple interlacing areas.

[0039] like Figure 1 As shown, a limiting component 13 is further provided on the carrying plate 4. The limiting component 13 is located between the passive wire roll 1 and the binding gun a, and is used to support the binding wire traveling in this section. Specifically, the limiting component 13 can be a frame with a cylinder inside, and the cylinder is used to support the binding wire.

[0040] like Figures 1-2 As shown, in order to realize the rotational installation of the passive wire roll 1 on the carrier plate 4, based on the setting of the spool 101, this application fixes a horizontally arranged shaft 8 on the carrier plate 4, the spool 101 is movably sleeved on the shaft 8, and the shaft 8 is provided with a clamping member for axially limiting the spool 101. When the spool 101 is sleeved on the shaft 8, the axial position of the spool 101 can be limited and fixed by the clamping member, so that the spool 101 can only rotate.

[0041] For example Figures 1-2As shown, the aforementioned clamping component can be any conventional technique in the prior art, such as a clamp that can be locked onto the shaft 8. This article provides a clamping component with the following structure: the clamping component includes a top ring 9 and a retaining sleeve 10, both sleeved on the shaft 8. The top ring 9 is located between the retaining sleeve 10 and the scroll 101 and can abut against one end of the scroll 101. The axial position of the retaining sleeve 10 on the shaft 8 is adjustable and can abut against the top ring 9. Simultaneously, the position of the retaining sleeve 10 on the shaft 8 can be fixed to lock the position of the top ring 9. Since both ends of the top ring 9 abut against the scroll 101 and the retaining sleeve 10 respectively, locking the position of the top ring 9 will lock the position of the scroll 101. Locking the position of the retaining sleeve 10 on the shaft 8 is a conventional technique in the prior art, and will not be elaborated upon here to avoid unnecessary detail.

[0042] Furthermore, a hollow tube 11 is coaxially disposed in the middle of the spool 101 and sleeved on the shaft body 8. The inner diameter of the hollow tube 11 is smaller than the diameter of the spool 101, and the inner diameter of the hollow tube 11 is larger than the diameter of the shaft body 8. Based on this design, multiple protrusions 12 are arranged in a circumferential array on the inner side of the hollow tube 11. The virtual circle formed by the protrusions 12 near their protrusions is adapted to the diameter of the cross-sectional circle of the shaft body 8. Correspondingly, the end of the top ring 9 near the hollow tube 11 is designed to be constricted and forms a constricted end. The constricted end is adapted to the diameter of the hollow tube 11 to achieve complete contact and limitation of the end of the hollow tube 11 against the constricted end.

[0043] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An electromagnetic brake wire feed mechanism characterized by comprising: The device includes a passive wire roll (1) for supplying and rotating the binding wire to the binding gun (a) and a locking device for locking the position of the passive wire roll (1). A follower disk (3) is coaxially arranged on the passive wire roll (1). Multiple teeth (301) are arranged in a circumferential array on the outer edge of the follower disk (3). An interpenetration area is formed between any two adjacent teeth (301). The locking device has a stop bar (2) that can make curved movements. The movement path of the stop bar (2) intersects with the movement path of the interpenetration area so that the stop bar (2) that makes curved movements can be inserted into the interpenetration area.

2. The wire feeding mechanism with an electromagnet brake according to claim 1, characterized in that, The wire feeding mechanism also includes a carrier plate (4) for the passive wire roll (1) to be rotated and installed. A transfer shaft (5) is rotatably arranged on the carrier plate (4), and the axial direction of the transfer shaft (5) is arranged perpendicular to the axial direction of the passive wire roll (1). The stop rod (2) is provided at one end of the transfer shaft (5) near the follower plate (3) so that the stop rod (2) can rotate with the transfer shaft (5) in a curved motion.

3. The wire feeding mechanism with an electromagnet brake according to claim 2, characterized in that, The end of the stop bar (2) away from the adapter shaft (5) intersects with the movement path of the interpenetration area, and the end is set in a bent state. The size of the bent end is smaller than the size of the interpenetration area so that the bent end can be inserted into the interpenetration area.

4. A wire feeding mechanism with an electromagnet brake according to claim 2 or 3, characterized in that, The carrier plate (4) is provided with a drive component for driving the adapter shaft (5) to rotate.

5. A wire feeding mechanism with an electromagnet brake according to claim 4, characterized in that, The driving component includes a push-pull electromagnet (6) mounted on a carrier plate (4). The push-pull electromagnet (6) has a pin (601) that performs linear motion. The axial direction of the pin (601) is arranged perpendicular to the axial direction of the adapter shaft (5). A connecting ear (7) is movably mounted on the pin (601) and is connected to the adapter shaft (5) so that the rotation of the adapter shaft (5) can be achieved by the linear motion of the pin (601).

6. A wire feeding mechanism with an electromagnet brake according to claim 2, characterized in that, The passive wire roll (1) includes a spool (101) for winding the binding wire and end plates (102) coaxially disposed at both ends of the spool (101), wherein the outer edge of any of the end plates (102) is provided with a plurality of teeth (301) arranged in a circumferential array to form the follower plate (3).

7. A wire feeding mechanism with an electromagnet brake according to claim 6, characterized in that, The carrier plate (4) is provided with a shaft (8) for rotating the reel (101), and the shaft (8) is provided with a clamping member for axially limiting the reel (101).

8. A wire feeding mechanism with an electromagnet brake according to claim 7, characterized in that, The clamping component includes a top ring (9) and a retaining sleeve (10) both sleeved on the shaft (8). The top ring (9) is located between the retaining sleeve (10) and the scroll (101) and can abut against one end of the scroll (101). The retaining sleeve (10) abuts against the top ring (9) and can be fixedly installed on the shaft (8) to lock the position of the top ring (9).

9. A wire feeding mechanism with an electromagnet brake according to claim 8, characterized in that, The middle part of the scroll (101) is coaxially provided with a hollow tube (11) sleeved on the shaft body (8), and the inner circumferential array of the hollow tube (11) is provided with multiple protrusions (12). The virtual circle formed by the near ends of the multiple protrusions (12) is adapted to the diameter of the cross-sectional circle of the shaft body (8). The top ring (9) near the hollow tube (11) is designed with a narrow end and forms a narrow end. The narrow end is adapted to the diameter of the hollow tube (11) to achieve the contact and limiting of the end of the hollow tube (11) against the narrow end.

10. A wire feeding mechanism with an electromagnet brake according to claim 2 or 3, characterized in that, The wire feeding mechanism also includes a limiting component (13) disposed on the carrier plate (4) and between the passive wire roll (1) and the binding gun (a). The limiting component (13) is a frame with a cylinder inside, and the cylinder is used to support the binding wire.

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