A transmission device of a wire feeding wheel of a bar packer and a wire feeding unit including the transmission device

Abstract

The application discloses a kind of transmission of bar packing machine wire feeding wheel, it includes variable frequency gear reduction motor, wire feeding wheel, the axial fixed unit of wire feeding wheel, axial fixed unit includes rack, wire feeding wheel support, shaft sleeve, conical flange, deep groove ball bearing, locking nut;Shaft sleeve is connected with the output shaft of variable frequency gear reduction motor by flat key, wire feeding wheel support is connected with the left section of shaft sleeve, conical flange is sleeved on shaft sleeve, deep groove ball bearing is arranged between wire feeding wheel support and conical flange, locking nut is screwed on shaft sleeve and tightly presses wire feeding wheel support, wire feeding wheel is sleeved on wire feeding wheel support and is fixedly connected with it, rack is sleeved outside conical flange, conical flange, rack, variable frequency gear reduction motor are fixedly connected.The transmission of the application can realize the torque transmission of the output shaft of normal length motor and wire feeding wheel, reduce production cost, ensure equipment safety.

Description

Technical Field

[0001] This invention relates to the field of bar baling machines, and more specifically to a bar baling machine feed wheel drive device. Background Technology

[0002] Bar stock generally refers to a material product with a simple cross-sectional shape such as round, square, hexagonal, or octagonal, a relatively large length relative to its cross-sectional dimensions, and is usually provided in straight strips. A bar stock baling machine is a specialized piece of machinery used for shaping, lengthening, and weighting bars into bundles and packages. Its working principle is as follows: an axially fixed motor drives a feed wheel to rotate. The feed wheel completes the feeding and pulling process of the bundling thread, clamping and separating the bundling thread, thus allowing the bundling thread entering the baling line to smoothly complete the baling action.

[0003] Because of the significant distance between the feed rollers and the motor output shaft of bar balers, ordinary motors cannot transmit torque to the feed rollers. Therefore, most companies adopt a solution of extending the length of the motor output shaft. For example, Zehnder Berstae's bar balers use non-standard motors with output shafts 2.5 times longer than standard motors. However, non-standard motors not only increase production costs but may also cause strength issues, potentially leading to safety problems for the entire equipment. Summary of the Invention

[0004] The problem this invention aims to solve is to provide a transmission device for the wire feeding wheel of a bar baling machine. This device enables torque transmission between the motor's output shaft (at its normal length) and the wire feeding wheel, reducing production costs and ensuring equipment safety. This invention also provides a wire feeding unit for the transmission device, enabling the bar baling machine to safely and stably complete the baling operation.

[0005] This invention discloses a transmission device for a wire feeding wheel of a bar baling machine. It includes a variable frequency gear reducer motor, a wire feeding wheel, and an axial fixing unit for the wire feeding wheel. The axial fixing unit includes a frame, a wire feeding wheel bracket, a bushing, a tapered flange, a deep groove ball bearing, and a lock nut. The bushing is connected to the output shaft of the variable frequency gear reducer motor via a flat key. The wire feeding wheel bracket is connected to the left section of the bushing. The tapered flange is fitted onto the bushing. The deep groove ball bearing is positioned between the wire feeding wheel bracket and the tapered flange. The lock nut is screwed onto the bushing and presses tightly against the wire feeding wheel bracket. The wire feeding wheel is fitted onto and fixedly connected to the wire feeding wheel bracket. The frame is fitted over the tapered flange. The tapered flange, the frame, and the variable frequency gear reducer motor are fixedly connected.

[0006] Furthermore, the inner hole of the right section of the bushing is provided with two 180° evenly distributed keyways, which are connected to the output shaft of the variable frequency gear reducer motor through two flat keys.

[0007] Furthermore, the bushing is a three-section stepped shaft, with its diameter gradually increasing from left to right; the small hole of the wire feed wheel bracket is connected to the left section of the middle section of the bushing shaft via a flat key, and the straight hole of the tapered flange is fitted onto the middle section of the middle section of the bushing shaft; the outer and inner rings of the deep groove ball bearing are respectively engaged with the large hole of the wire feed wheel bracket and the straight shaft of the left section of the tapered flange; the lock nut is screwed onto the thread of the left section of the bushing shaft and pressed tightly against the left end face of the wire feed wheel bracket.

[0008] Furthermore, the left end of the outer ring of the deep groove ball bearing contacts the stepped surface between the large and small holes of the wire feed wheel bracket, and the right end of its inner ring contacts the stepped surface between the straight shaft of the left section and the inclined shaft of the right section of the tapered flange.

[0009] Furthermore, the transmission device also includes a thrust ball bearing, which is sleeved on the right section of the shaft in the middle section of the bushing and located in the oblique hole of the tapered flange.

[0010] Furthermore, the left end of the thrust ball bearing housing ring contacts the stepped surface between the straight hole and the oblique hole of the tapered flange, and the right end of its shaft ring contacts the stepped surface between the right section of the shaft sleeve and the intermediate shaft; there is a gap between the thrust ball bearing housing ring and the shaft sleeve.

[0011] Furthermore, the wire feed wheel is fitted onto the middle section shaft of the wire feed wheel bracket and fastened to the left end face of the right section shaft of the wire feed wheel bracket.

[0012] Furthermore, the frame is fitted around the oblique shaft of the tapered flange and is fixedly connected to the flange face of the tapered flange.

[0013] Furthermore, there is a gap between the tapered flange and the bushing.

[0014] This invention discloses a wire feeding unit including a transmission device, comprising a transmission device, an inlet wire guide, a hydraulic cylinder, clamping wheel I, rocker arm I, clamping wheel II, clamping wheel III, clamping wheel IV, rocker arm II, and a guide device. The wire feeding device is located in the middle of the frame, the inlet wire guide is fixed to the upper end of the frame, the guide device is fixed to the lower end of the support, clamping wheel I, rocker arm I, and clamping wheel II are located at the upper right corner of the frame, rocker arm I is an eccentric shaft and fixed to the frame, and clamping wheels I and II are mounted on... On rocker arm I; clamping wheels III and IV, and rocker arm II are located at the lower right corner of the frame. Rocker arm II is an eccentric shaft and fixed on the frame. Clamping wheels III and IV are mounted on rocker arm II. The lower end of the inlet track is tangent to both the wire feeding wheel and clamping wheel I. Clamping wheels I, II, III, and IV are all tangent to the wire feeding wheel. The guide device is tangent to the wire feeding wheel and clamping wheel IV, respectively. The hydraulic cylinder is located at the rear of the frame, and its two ends are connected to rocker arm I and rocker arm II, respectively.

[0015] The advantages of the transmission device of this invention are: 1. The variable frequency gear reducer motor is keyed to the bushing, and the bushing is keyed to the wire feeding wheel bracket. The wire feeding wheel is fixed on the wire feeding wheel bracket. This ensures that the variable frequency gear reducer motor reliably transmits torque to the wire feeding wheel without extending the output shaft of the variable frequency gear reducer motor, thus ensuring the rotation of the wire feeding wheel and realizing the functions of wire feeding; 2. The axial fixation of the wire feeding wheel is achieved through the locking nut on the left side and the tapered flange, deep groove ball bearing, and thrust ball bearing on the right side. At the same time, the deep groove ball bearing and thrust ball bearing ensure that the tapered flange does not affect the rotational movement of the wire feeding wheel bracket and the bushing. Therefore, this invention, through the cooperation of the deep groove ball bearing, thrust ball bearing, bushing, and tapered flange, realizes the connection between the output shaft of the motor at its normal length and the wire feeding wheel, safely and stably completing the baling action, reducing production costs, and improving the safety of the bar baling machine operation. The wire feeding unit of this invention utilizes the cooperation of wire feeding wheels and clamping wheels to complete the processes of clamping and separating the bundling wire, feeding and pulling the wire, etc., so as to realize the safe and stable completion of the bundling action of the bar baling machine. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the transmission device of the wire feeding wheel of the bar baling machine of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a perspective view of the wire feeding unit of the present invention; Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, details a transmission device for a bar baling machine's feed roller according to the present invention. The following embodiments are illustrative of the invention but are not intended to limit its scope.

[0020] Example 1

[0021] from Figure 1 , Figure 2 As can be seen, the present invention discloses a transmission device for a wire feeding wheel of a bar baling machine, which includes a variable frequency gear reducer motor 1, a wire feeding wheel 4, and an axial fixing unit for the wire feeding wheel. The axial fixing unit includes a frame 3, a wire feeding wheel bracket 5, a bushing 6, a tapered flange 7, a deep groove ball bearing 8, and a locking nut 10. The bushing 6 is connected to the output shaft of the variable frequency gear reducer motor 1 via a flat key. The wire feeding wheel bracket 5 is connected to the left section of the bushing 6. The tapered flange 7 is fitted on the bushing 6. The deep groove ball bearing 8 is disposed between the wire feeding wheel bracket 5 and the tapered flange 7. The locking nut 10 is screwed onto the bushing 6 and presses tightly against the wire feeding wheel bracket 5. The wire feeding wheel 4 is fitted on the wire feeding wheel bracket 5 and fixedly connected to it. The frame 3 is fitted outside the tapered flange 7. The tapered flange 7, the frame 3, and the variable frequency gear reducer motor 1 are fixedly connected by screws.

[0022] In the transmission device of the present invention: the variable frequency gear reducer motor 1 is keyed to the bushing 6, the bushing 6 is keyed to the wire feed wheel bracket 5, and the wire feed wheel 4 is fixed on the wire feed wheel bracket 5. That is, the torque of the variable frequency gear reducer motor 1 is transmitted to the wire feed wheel 4 through the axial fixing unit, without the need to extend the output shaft of the motor.

[0023] The locking nut 10 limits the left side of the wire feed wheel bracket 5, while the tapered flange 7 and the deep groove ball bearing 8 limit the right side of the wire feed wheel bracket 5, thereby axially fixing the wire feed wheel 4 fixed on the wire feed wheel bracket 5 and ensuring its stable and reliable transmission.

[0024] Example 2

[0025] from Figure 1 , Figure 2 It can be seen that in the transmission device of the present invention, the inner hole of the right section of the bushing 6 is provided with two 180° evenly distributed keyways, which are connected to the output shaft of the variable frequency gear reducer motor 1 through two flat keys.

[0026] The bushing 6 is connected to the output shaft of the variable frequency gear reducer motor 1, so that the variable frequency gear reducer motor 1 drives the bushing 6 to rotate, thereby driving the wire feeding wheel 4 to rotate.

[0027] Example 3

[0028] from Figure 1 , Figure 2 As can be seen, in the transmission device of the present invention: the bushing 6 is a three-section stepped shaft, the diameter of which gradually increases from left to right; the small hole of the wire feed wheel bracket 5 is connected to the left section of the middle section of the shaft of the bushing 6 through the flat key 9; the straight hole of the tapered flange 7 is fitted on the middle section of the middle section of the shaft of the bushing 6; the outer and inner rings of the deep groove ball bearing 8 are respectively engaged with the large hole of the wire feed wheel bracket 5 and the straight shaft of the left section of the tapered flange 7; the locking nut 10 is screwed onto the thread of the left section of the shaft of the bushing 6 and pressed tightly on the left end face of the wire feed wheel bracket 5.

[0029] The left side of the wire feed wheel bracket 5 is axially limited by the locking nut 10, and the right side is axially positioned by the deep groove ball bearing 8. The deep groove ball bearing 8 is positioned by the tapered flange 7. The reliable positioning of the wire feed wheel bracket 5 ensures the axial positioning of the wire feed wheel 4, thereby ensuring the reliable position of the wire feed wheel 4 and ensuring that the variable frequency gear reducer motor 1 drives the wire feed wheel 4 to rotate.

[0030] Example 4

[0031] from Figure 1 , Figure 2 It can be seen that in the transmission device of the present invention, the left end of the outer ring of the deep groove ball bearing 8 is in contact with the stepped surface between the large and small holes of the wire feed wheel bracket 5, and the right end of its inner ring is in contact with the stepped surface between the left straight shaft and the right inclined shaft of the tapered flange 7.

[0032] There is a gap between the left end of the inner ring of the deep groove ball bearing 8 and the wire feed wheel bracket 5 to ensure that the rotation of the wire feed wheel bracket 5 does not affect the inner ring of the deep groove ball bearing 8; the right end of the outer ring of the deep groove ball bearing 8 does not contact the tapered flange 7 to ensure that the rotation of the deep groove ball bearing 8 does not affect the tapered flange 7.

[0033] Example 5

[0034] from Figure 1 , Figure 2 It is understood that the transmission device of the present invention also includes a thrust ball bearing 12, which is sleeved on the right section of the middle section of the shaft of the bushing 6 and located in the oblique hole of the tapered flange 7.

[0035] The thrust ball bearing 12 axially limits the tapered flange 7, and then axially limits the deep groove ball bearing 9, further ensuring the reliability of the axial limit of the wire feed wheel bracket 5, thereby ensuring the reliable position of the wire feed wheel 4 and ensuring that the variable frequency gear reducer motor 1 drives the wire feed wheel 4 to rotate.

[0036] Example 6

[0037] from Figure 1 , Figure 2 It can be seen that in the transmission device of the present invention, the left end of the seat ring of the thrust ball bearing 12 contacts the stepped surface between the straight hole and the oblique hole of the tapered flange 7, and the right end of its shaft ring contacts the stepped surface between the right section of the shaft and the intermediate shaft of the bushing 6; there is a gap between the seat ring of the thrust ball bearing 12 and the bushing 6.

[0038] The thrust ball bearing 12 ensures its axial position on the bushing 6 through the housing ring and the shaft ring, and provides axial limit for the tapered flange 7; at the same time, there is a gap between the housing ring of the thrust ball bearing 12 and the bushing 6, which ensures that the rotational movement of the bushing 6 does not affect the housing ring of the thrust ball bearing 12, further ensuring the reliability of axial positioning.

[0039] Example 7

[0040] from Figure 1 , Figure 2 It can be seen that in the transmission device of the present invention, the wire feeding wheel 4 is mounted on the middle section shaft of the wire feeding wheel bracket 5 and fastened to the left end face of the right section shaft of the wire feeding wheel bracket 5.

[0041] The wire feed wheel 4 is fixedly connected to the wire feed wheel bracket 5. When the axial positioning of the wire feed wheel bracket 5 is reliable, the axial positioning of the wire feed wheel 4 is also reliable, ensuring that the variable frequency gear reducer motor 1 transmits torque to the wire feed wheel 4, and the two rotate together.

[0042] Example 8

[0043] from Figure 1 , Figure 2It can be seen that in the transmission device of the present invention, the frame 3 is sleeved outside the inclined shaft of the tapered flange 7 and is fixedly connected to the flange surface of the tapered flange 7.

[0044] The frame 3 ensures its connection with the tapered flange 7 and the variable frequency gear reducer motor 1 without interfering with the tapered flange 7.

[0045] Example 9

[0046] from Figure 1 , Figure 2 It is known that there is a gap between the tapered flange 7 and the bushing 6 in the transmission device of the present invention.

[0047] In this way, when the bushing 6 drives the wire feed wheel bracket 5 to rotate, the tapered flange 7 only serves as a limit and does not rotate.

[0048] The advantages of the transmission device for the wire feeding wheel of the bar baling machine of this invention are as follows: 1. The variable frequency gear reducer motor is keyed to the bushing, and the bushing is keyed to the wire feeding wheel bracket. The wire feeding wheel is fixed on the wire feeding wheel bracket. This ensures that the variable frequency gear reducer motor reliably transmits torque to the wire feeding wheel without extending the output shaft of the variable frequency gear reducer motor, thus ensuring the rotation of the wire feeding wheel and realizing the wire feeding function. 2. The axial fixation of the wire feeding wheel is achieved through the locking nut on the left side and the tapered flange, deep groove ball bearing, and thrust ball bearing on the right side. At the same time, the deep groove ball bearing and thrust ball bearing ensure that the tapered flange does not affect the rotational movement of the wire feeding wheel bracket and the bushing. Therefore, this invention, through the cooperation of the deep groove ball bearing, thrust ball bearing, bushing, and tapered flange, achieves the connection between the normal motor output shaft and the wire feeding wheel; it can safely and stably complete the baling action. This invention reduces production costs and improves the safety of bar baling machine operation.

[0049] For example, when the model of the variable frequency gear reducer motor 1 is SK9032.1VZ-132SP / 4TF, its output shaft length is 90mm. This standard motor cannot connect to the wire feeding wheel. Currently, the output shaft is machined to 225mm to achieve this connection. However, with the transmission device of this invention, the connection to the wire feeding wheel can be achieved while keeping the output shaft length unchanged at 90mm, thus allowing the variable frequency gear reducer motor to drive the wire feeding wheel to rotate and feed the wire.

[0050] Example 10

[0051] from Figure 3As can be seen, the present invention provides a wire feeding unit including a wire feeding wheel transmission device, comprising a wire feeding device, an inlet wire channel 2, a hydraulic cylinder 18, a clamping wheel I 15, a rocker arm I 16, a clamping wheel II 17, a clamping wheel III 19, a clamping wheel IV 20, a rocker arm II 21, and a guide device 14; the wire feeding device is located in the middle of the frame 3, the inlet wire channel 2 is fixed to the upper end of the frame 3, the guide device 14 is fixed to the lower end of the support 3, the clamping wheel I 15, the rocker arm I 16, and the clamping wheel II 17 are located at the upper right corner of the frame 3, the rocker arm I 16 is an eccentric shaft and fixed to the frame 3, and the clamping wheels I 15 and II 17 are mounted on... On rocker arm I16; clamping wheel III19, clamping wheel IV20, and rocker arm II21 are located at the lower right corner of frame 3. Rocker arm II21 is an eccentric shaft and fixed on frame 3. Clamping wheel III19 and clamping wheel IV20 are mounted on rocker arm II21. The lower end of the inlet line 2 is tangent to both the wire feeding wheel 4 and clamping wheel I15. Clamping wheel I15, clamping wheel II17, clamping wheel III19, and clamping wheel IV20 are all tangent to the wire feeding wheel 4. The guide device 14 is tangent to the wire feeding wheel 4 and clamping wheel IV20 respectively. Hydraulic cylinder 18 is located behind frame 3, and its two ends are connected to rocker arm I16 and rocker arm II21 respectively.

[0052] Hydraulic cylinder 18 provides clamping force for both rocker arm I 16 and rocker arm II 21; clamping wheel IV 20 is equipped with a pulse encoder, which can send a deceleration signal before the wire feeding is completed; the encoder is also used as a rotation control switch during the wire feeding process; after the wire feeding stops, it indicates that the wire feeding process is complete.

[0053] When the bar baling machine starts feeding the wire, the variable frequency gear reducer motor 1 rotates forward. The baling wire passes sequentially through the inlet chute 2, clamping rollers I 15 and II 17, clamping rollers III 19 and IV 20, and guide device 14, finally entering the twisting device and baling chute of the bar baling machine. Upon receiving a baling command, the variable frequency gear reducer motor 1 starts reversing to pull the wire until baling is complete, at which point the wire pulling stops; otherwise, it continues to pull the baling wire back.

[0054] This invention cleverly utilizes a mechanical structure to achieve axial fixation of the wire feeding wheel in a bar baling machine. This wire feeding wheel transmission device has higher driving force and more precise control, and has high promotional value.

[0055] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made to the technical solutions and concepts of the present invention should all be covered within the scope of protection of the present invention.

Claims

1. A drive for a rod packing machine wire feed wheel, characterised in that: It includes a variable frequency geared motor (1), a wire feed wheel (4), and an axial fixing unit for the wire feed wheel. The axial fixing unit includes a frame (3), a wire feed wheel bracket (5), a bushing (6), a tapered flange (7), a deep groove ball bearing (8), and a lock nut (10). The bushing (6) is connected to the output shaft of the variable frequency geared motor (1) via a flat key. The wire feed wheel bracket (5) is connected to the left section of the bushing (6). The tapered flange (7) is fitted onto the bushing (6). The deep groove ball bearing (8) is positioned between the wire feed wheel bracket (5) and the tapered flange (7). The lock nut (10) is positioned between the wire feed wheel bracket (5) and the tapered flange (7). The wire feed wheel (4) is screwed onto the bushing (6) and pressed tightly against the wire feed wheel bracket (5). The wire feed wheel (4) is fitted onto the wire feed wheel bracket (5) and fixed to it. The frame (3) is fitted onto the tapered flange (7). The tapered flange (7), the frame (3), and the variable frequency gear reducer motor (1) are fixed together. The transmission device also includes a thrust ball bearing (12). The thrust ball bearing (12) is fitted onto the right section of the middle section shaft of the bushing (6) and located in the oblique hole of the tapered flange (7). The wire feed wheel (4) is fitted onto the middle section shaft of the wire feed wheel bracket (5) and fixed to the left end face of the right section shaft of the wire feed wheel bracket (5).

2. The transmission of claim 1, wherein: The inner hole of the right section of the bushing (6) is provided with two 180° evenly distributed keyways, which are connected to the output shaft of the variable frequency gear reducer motor (1) through two flat keys.

3. The transmission of claim 1, wherein: The bushing (6) is a three-section stepped shaft with its diameter gradually increasing from left to right; the small hole of the wire feed wheel bracket (5) is connected to the left section of the middle section of the shaft of the bushing (6) through the flat key (9); the straight hole of the tapered flange (7) is fitted on the middle section of the middle section of the shaft of the bushing (6); the outer and inner rings of the deep groove ball bearing (8) are respectively engaged with the large hole of the wire feed wheel bracket (5) and the straight shaft of the left section of the tapered flange (7); the locking nut (10) is screwed onto the thread of the left section of the shaft of the bushing (6) and pressed tightly on the left end face of the wire feed wheel bracket (5).

4. The transmission of claim 1, wherein: The left end of the outer ring of the deep groove ball bearing (8) contacts the stepped surface between the large and small holes of the wire feed wheel bracket (5), and the right end of its inner ring contacts the stepped surface between the left straight shaft and the right inclined shaft of the tapered flange (7).

5. The transmission of claim 1, wherein: The left end of the seat ring of the thrust ball bearing (12) contacts the stepped surface between the straight hole and the oblique hole of the tapered flange (7), and the right end of its shaft ring contacts the stepped surface between the right section of the shaft sleeve (6) and the intermediate shaft; there is a gap between the seat ring of the thrust ball bearing (12) and the shaft sleeve (6).

6. The transmission of claim 1, wherein: The frame (3) is fitted outside the inclined shaft of the tapered flange (7) and is fixedly connected to the flange face of the tapered flange (7).

7. The transmission of claim 1, wherein: There is a gap between the tapered flange (7) and the bushing (6).

8. A wire feeding unit comprising a transmission device, characterized by: It includes the transmission device as described in any one of claims 1-7, the inlet cable track (2), the hydraulic cylinder (18), the clamping wheel I (15), the rocker arm I (16), the clamping wheel II (17), the clamping wheel III (19), the clamping wheel IV (20), the rocker arm II (21), and the guide device (14); the cable feeding device is located in the middle of the frame (3), the inlet cable track (2) is fixed at the upper end of the frame (3), the guide device (14) is fixed at the lower end of the frame (3), the clamping wheel I (15), the rocker arm I (16), and the clamping wheel II (17) are located at the upper right corner of the frame (3), the rocker arm I (16) is an eccentric shaft and is fixed on the frame (3), and the clamping wheel I (15) and the clamping wheel II (17) are mounted on the rocker arm I (16). The clamping wheel III (19), clamping wheel IV (20), and rocker arm II (21) are located at the lower right corner of the frame (3). The rocker arm II (21) is an eccentric shaft and is fixed on the frame (3). The clamping wheel III (19) and clamping wheel IV (20) are mounted on the rocker arm II (21). The lower end of the inlet line channel (2) is tangent to both the wire feeding wheel (4) and the clamping wheel I (15). The clamping wheel I (15), clamping wheel II (17), clamping wheel III (19), and clamping wheel IV (20) are all tangent to the wire feeding wheel (4). The guide device (14) is tangent to the wire feeding wheel (4) and the clamping wheel IV (20) respectively. The hydraulic cylinder (18) is located behind the frame (3) and its two ends are connected to the rocker arm I (16) and the rocker arm II (21) respectively.

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