A synchronized netting mechanism for a packaging machine

Abstract

This invention belongs to the field of baling machine technology and discloses a synchronous netting mechanism for a baling machine, comprising: a pushing component for pushing the bale to the netting position; a signal transmission component for collecting speed information of the pushing component and transmitting it to a control component; a control component for issuing control signals based on the speed information; a netting component for receiving the control signals and controlling the netting speed based on the control signals; and a netting cut-off component for receiving the control signals and cutting the netting after netting is completed. The signal transmission component of this invention collects the pushing speed of the pushing cylinder and then generates control signals that are transmitted to the netting motor and the netting cut-off cylinder, matching the pushing speed of the pushing cylinder with the rotation speed of the netting motor to ensure stable bale baling quality. Simultaneously, after netting is completed, the netting cut-off cylinder pushes the netting cutter to cut the netting of the bale, thus completing the entire baling process and effectively solving the problem of insufficient netting turns leading to irregular bale shapes or even non-bale formation.

Description

Technical Field

[0001] This invention belongs to the field of baling machine technology, and specifically relates to a synchronous wrapping mechanism for baling machines. Background Technology

[0002] The existing automatic netting device of a baler works by using a gear pump as the hydraulic power source, an electronic control system signal for control, and a hydraulic valve group and a netting gear ring as the actuators. The netting action is performed simultaneously with the baler's pushing cylinder pushing out the bale. Because the automatic netting system and the main baling system are two relatively independent hydraulic systems with no matching working speed, if the bale is too light and the pushing cylinder speed is too fast, the number of netting loops is too few, resulting in irregular bale shapes or even bale not forming properly. If the bale is too heavy and the pushing cylinder speed is too slow, the number of netting loops is too many, leading to excessive waste of netting and increased baling costs. The existing netting method requires a pause in the three-cylinder push after wrapping the front of the bale, during the wrapping of the tail and the breaking of the netting rope. The push resumes only after the tail of the bale is wrapped and the netting is broken, completing the unloading action. The stopping position is controlled by a sensor, which places high demands on debugging and operation. Improper adjustment can lead to incomplete netting at the tail of the bale.

[0003] In existing netting methods, after wrapping the front end of the bale, the three-cylinder propulsion needs to be paused briefly during the wrapping of the tail end and the cutting of the netting rope. Propulsion resumes only after the tail end is wrapped and the netting is cut to complete the unloading process. There are currently two structural methods: such as... Figure 1 As shown, one method uses the number of holes collected by a stroke sensor and a counting sensor on the stroke rod for control. Therefore, it requires precise control over the relative position of the sensors and the stroke rod, resulting in less accurate control of the stopping position; it can only be an integer multiple of the hole distance. For example... Figure 2 As shown, another method is to use a gear structure below the bale outlet to count the number of teeth for control. This structure also has high requirements for the adjustment of the counting sensor, and the counting gear is driven to rotate by the pushing force of the bale. The gear is easily jammed by the bale material, causing mechanical failure and sensor failure, and the structure is unstable. Summary of the Invention

[0004] To address at least one of the problems in the background art, the present invention proposes a synchronous wrapping mechanism for a packing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A synchronous wrapping mechanism for a baling machine, comprising:

[0007] The pusher assembly is used to push the bales to the position where they are to be wrapped with netting;

[0008] The signal transmission component is used to collect the speed information of the feeding component and transmit it to the control component;

[0009] The control component is used to send control signals based on speed information;

[0010] The web-winding component is used to receive control signals and control the web-winding speed based on the control signals;

[0011] The net-cutting component is used to receive control signals and cut the net rope after the netting process is completed.

[0012] Preferably, the synchronous winding mechanism further includes a housing, and the feeding assembly, signal transmission assembly, control assembly, winding assembly, and winding assembly are all mounted on the housing;

[0013] The synchronous winding mechanism uses one or more of the following mechanical transmission methods: gear transmission, belt transmission, linkage transmission, chain transmission, cam transmission, and hydraulic transmission.

[0014] Preferably, the pushing assembly includes a pushing cylinder and a drive rack;

[0015] The pusher cylinder is installed on one surface of the housing and is used to push the bales of grass inside the housing to the winding net assembly;

[0016] The active rack is slidably mounted on the cylinder body surface of the pusher cylinder, with one end fixedly connected to the telescopic shaft of the sliding cylinder and arranged along the axial direction of the pusher cylinder.

[0017] Preferably, the signal transmission component includes an encoder assembly mounted within the housing;

[0018] One end of the encoder assembly is rotatably mounted with a driven gear, which meshes with the driving rack.

[0019] Preferably, the control components include a controller, a valve assembly, and several communication lines;

[0020] The controller is mounted on the surface of the housing and is connected to the encoder assembly via a communication line. It is used to generate control signals based on the speed information of the pusher assembly.

[0021] The controller is also connected to the valve group via a communication line and sends control signals through the valve group.

[0022] Preferably, the web winding assembly includes a web winding motor, a drive gear, an outlet tube, a web winding gear ring, and a web winding roller;

[0023] The wire wrapping motor is mounted on the surface of the housing and is connected to the controller via a communication cable;

[0024] The drive gear is mounted on the output shaft of the wire winding motor;

[0025] The drive gear meshes with the wire mesh gear ring;

[0026] The bale exit tube is connected to the shell through the axis of the wire mesh toothed ring, and the bale is packed at the opening of the bale exit tube.

[0027] The winding roller is rotated and mounted on the end face of the winding toothed ring.

[0028] Preferably, a stabilizing plate is also installed on the inner side of the wire mesh toothed ring, and the stabilizing plate is fixedly connected to the outlet pipe body;

[0029] Several positioning wheels are rotatably mounted on the surface of the stabilizing plate, and the positioning wheels abut against the inner surface of the wire mesh toothed ring.

[0030] Preferably, the net-cutting assembly includes a net-cutting cylinder and a net-cutting cutter. The net-cutting cutter is installed at one end of the telescopic shaft of the net-cutting cylinder and is used to cut the net rope after the net winding is completed.

[0031] Preferably, the hydraulic cylinder for disconnecting the network is mounted on one surface of the housing.

[0032] Preferably, the winding motor is used to receive the control signal from the valve assembly and control the speed of the winding motor;

[0033] The net-cutting cylinder is used to receive control signals from the valve group and drive the net-cutting cutter to cut the net rope after the net winding motor finishes winding the net.

[0034] The beneficial effects of this invention are:

[0035] 1. The signal transmission component of this invention collects the pushing speed of the pushing cylinder and then generates a control signal to transmit to the winding motor and the cutting cylinder, so that the pushing speed of the pushing cylinder matches the rotation speed of the winding motor, ensuring stable baling quality of the straw bales. At the same time, after the winding is completed, the cutting cylinder pushes the cutting blade to cut the straw bale's netting, thus completing the entire baling process. This effectively solves the problems of insufficient winding loops leading to irregular bale shapes or even failure to form bales, and excessive winding loops leading to excessive waste of netting and increased baling costs when the straw bales are too heavy and the pushing cylinder pushes too slowly.

[0036] 2. Compared with traditional baling machines, this invention eliminates the need for stroke sensors, counting sensors, pusher cylinder stroke rods, and wrapping counting mechanisms, greatly simplifying the structure and improving system stability and ease of operation, maintenance, and repair.

[0037] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of a wire mesh structure utilizing a counting sensor in the prior art is shown;

[0040] Figure 2 A schematic diagram of a wire mesh structure utilizing gear counting in the prior art is shown;

[0041] Figure 3 A schematic diagram of the structure of a synchronous wrapping mechanism for a baling machine according to the present invention is shown;

[0042] Figure 4 A schematic diagram of the structure of the wire breaking cylinder and wire breaking cutter of the present invention is shown.

[0043] In the diagram: 1. Housing; 2. Pushing cylinder; 3. Drive rack; 4. Driven gear; 5. Encoder assembly; 6. Controller; 7. Communication line; 8. Valve group; 9. Winding motor; 10. Drive gear; 11. Winding cylinder; 12. Outlet tube; 13. Stabilizing plate; 14. Positioning wheel; 15. Winding gear ring; 16. Winding roller; 17. Winding cutter. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] A synchronous netting mechanism for a baler includes a pushing component, a signal transmission component, a control component, a netting component, and a netting disconnection component. The pushing component pushes the bale to the netting position; the signal transmission component collects speed information from the pushing component and transmits it to the control component; the control component issues control signals based on the speed information; the netting component receives the control signals and controls the netting speed accordingly; and the netting disconnection component receives the control signals and cuts the netting after netting is complete. Furthermore, the synchronous netting mechanism employs one or more of the following mechanical transmission methods: gear drive, pulley drive, linkage drive, chain drive, cam drive, and hydraulic drive.

[0046] It should be noted that the signal transmission component in the synchronous wrapping mechanism of the aforementioned baler can collect the speed of the pushing component and transmit the speed signal to the wrapping and breaking components. During the baling process, the operating parameters of the wrapping and breaking components can be adjusted according to the speed of the pushing component, thereby stabilizing the bale baling and achieving adaptation between the wrapping speed and the pushing speed. Compared with the traditional structure, the stroke sensor, counting sensor, pushing cylinder stroke rod, and wrapping counting mechanism can all be eliminated, greatly simplifying the structure and improving system stability and ease of operation, maintenance, and repair. Furthermore, while the transmission structure is primarily described using gear and hydraulic transmission in this invention, other transmission methods can be substituted as needed in practical applications, as long as the design objectives are met.

[0047] The following is combined with Figure 3 and Figure 4 This paper provides a detailed description of each component of the synchronous wrapping mechanism used in a packing machine.

[0048] like Figure 3 As shown, the supporting structure of the synchronous winding mechanism is a housing 1. The pushing assembly, signal transmission assembly, control assembly, winding assembly, and breaking assembly are all mounted on the housing 1. The pushing assembly includes a pushing cylinder 2 and a drive rack 3. The pushing cylinder 2 is mounted on one surface of the housing 1. Figure 3 On the left side of the middle surface, during operation, the pushing cylinder can push the straw bales inside the housing 1 to the position of the wrapping assembly; while the active rack 3 is slidably installed on the surface of the pushing cylinder 2, one end of which is fixedly connected to the telescopic shaft of the sliding cylinder 2, and the active rack 3 is set along the axial direction of the pushing cylinder 2, so it can move together with the pushing cylinder 2.

[0049] Furthermore, such as Figure 3 As shown, the signal transmission component includes an encoder assembly 5 installed inside the housing 1; a driven gear 4 is rotatably mounted on one end of the encoder assembly 5, and the driven gear 4 meshes with the driving rack 3. When the driving rack 3 moves axially along the pusher cylinder 2, the driven gear 4 will rotate accordingly through the gear transmission. At this time, the encoder assembly 5 can collect the rotational speed of the driven gear 4, thereby obtaining the moving speed and position of the driven gear 4.

[0050] Furthermore, such as Figure 3 As shown, the control components include a controller 6, a valve group 8, and several communication lines 7; wherein the controller 6 is mounted on the surface of the housing 1 and is connected to the encoder assembly 5 via the communication lines 7, and is used to generate control signals based on the speed information of the pusher assembly; the controller 6 is also connected to the valve group 8 via the communication lines 7, and sends control signals through the valve group 8.

[0051] It should be noted that the encoder assembly 5 will change the rotational speed of the driven gear 4 at any time as the pushing speed of the pusher cylinder 2 changes; the signal density of the output signal of the encoder assembly 5 will change as the rotational speed collected changes. The controller 6 calculates the speed change of the pusher cylinder 2 by reading the signal density change of the encoder assembly 5. The controller 6 outputs different currents to the electro-proportional throttle valve of the valve group 8 according to the speed change. The electro-proportional throttle valve changes the size of the throttle orifice according to the different currents to realize the change of flow rate, thereby realizing the change of rotational speed of the winding gear ring 15, and finally realizing the matching of the pushing speed of the pusher cylinder 2 with the winding speed.

[0052] Furthermore, such as Figure 3 As shown, the wrapping assembly includes a wrapping motor 9, a drive gear 10, a bale outlet tube 12, a wrapping gear ring 15, and a wrapping roller 16. The wrapping motor 9 is mounted on the surface of the housing 1 and is connected to the controller 6 via a communication line 7. The drive gear 10 is mounted on the output shaft of the wrapping motor 9. The drive gear 10 meshes with the wrapping gear ring 15. The bale outlet tube 12 passes through the axis of the wrapping gear ring 15 and is connected to the housing 1. The bales are packed at the opening of the bale outlet tube 12. The wrapping roller 16 is rotatably mounted on the end face of the wrapping gear ring 15.

[0053] It should be noted that the winding motor 9 drives the winding toothed ring 15 to rotate via gear transmission. The winding roller 16 rotates around the center of the winding toothed ring 15, and the winding roller 16 winds up the netting. When the winding roller 16 rotates, the netting wraps around the bale at the opening of the bale tube 12, thus baling the bale. Moreover, during this process, the speed of the winding motor 9 is adjusted after receiving a control signal, which ensures that the speed of the pushing cylinder 2 matches the speed of the winding motor 9, ensuring stable bale baling.

[0054] It should be further explained that the winding motor 9 is a hydraulic motor. The valve assembly 8 drives the winding motor 9 to rotate, which in turn drives the winding gear ring 15. The change in flow rate of the valve assembly 8 changes the rotation speed of the winding motor 9. In addition, in this invention, the valve assembly 8 can also be replaced by an electrical signal transmitting device. Similarly, the winding motor 9 and the wire-cutting cylinder 11 can also be electrically driven.

[0055] Furthermore, such as Figure 3 As shown, a stabilizing plate 13 is also installed on the inner side of the wire mesh toothed ring 15, and the stabilizing plate 13 is fixedly connected to the outlet tube body 12. Several positioning wheels 14 are rotatably mounted on the surface of the stabilizing plate 13, and the positioning wheels 14 abut against the inner surface of the wire mesh toothed ring 15.

[0056] It should be noted that there are multiple positioning wheels 14, which are installed at the edge of the stabilizing plate 13. After the positioning wheels 14 abut against the winding toothed ring 15, the winding toothed ring 15 can rotate more stably, thus improving the quality of the bale packing.

[0057] Furthermore, such as Figure 4 As shown, the net-cutting assembly includes a net-cutting cylinder 11 and a net-cutting cutter 17. The net-cutting cylinder 11 is mounted on one surface of the housing 1, and the net-cutting cutter 17 is mounted on one end of the telescopic shaft of the net-cutting cylinder 11, used to cut the net rope after the net winding is completed.

[0058] It should be noted that the winding motor 9 is used to receive the control signal from the valve group 8 and control the speed of the winding motor 9; the net-cutting cylinder 11 is used to receive the control signal from the valve group 8 and drive the net-cutting cutter 17 to cut the net rope after the winding motor 9 finishes winding the net.

[0059] The principle of this invention is as follows:

[0060] Before the pushing cylinder 2 starts working, the net-breaking assembly and the net-winding assembly complete the net-breaking action of the previous bale and maintain the pressing action of the net rope. When the pushing cylinder 2 starts working, the controller 6 sends a control signal. After the valve group 8 receives the control signal, the net-winding motor 9 rotates and drives the net-winding tooth ring 15 to rotate. As a result, the net-winding roller 16 rotates around the bale exit opening of the bale tube 12, realizing the net rope wrapping the bale. When the pushing cylinder 2 pushes to the target position, the bale packing ends, the net-breaking assembly cuts the net rope, and waits for the next work cycle.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A synchronous wrapping mechanism for a baling machine, characterized in that, include: The pusher assembly is used to push the bales to the position where they are to be wrapped with netting; The signal transmission component is used to collect the speed information of the feeding component and transmit it to the control component; The control component is used to issue control signals based on speed information; The web-winding component is used to receive control signals and control the web-winding speed based on the control signals; The net-cutting component is used to receive control signals and cut the net rope after the net is wrapped. The material pushing assembly, signal transmission assembly, control assembly, net winding assembly and net breaking assembly are all mounted on the housing (1); The synchronous winding mechanism uses one or more of the following mechanical transmission methods: gear transmission, pulley transmission, linkage transmission, chain transmission, cam transmission, and hydraulic transmission. The pushing assembly includes a pushing cylinder (2) and a drive rack (3); The pushing cylinder (2) is installed on one surface of the housing (1) and is used to push the straw bales inside the housing (1) to the winding net assembly; The active rack (3) is slidably mounted on the cylinder surface of the pusher cylinder (2), one end of which is fixedly connected to the telescopic shaft of the sliding cylinder (2) and is arranged along the axial direction of the pusher cylinder (2); The signal transmission component includes an encoder assembly (5) installed inside the housing (1); One end of the encoder assembly (5) is rotatably mounted with a driven gear (4), which meshes with the driving rack (3); The control components include a controller (6), a valve assembly (8), and several communication lines (7); The controller (6) is mounted on the surface of the housing (1) and is connected to the encoder assembly (5) via a communication line (7) to generate control signals based on the speed information of the pusher assembly; The controller (6) is also connected to the valve group (8) via a communication line (7) and sends control signals through the valve group (8).

2. The synchronous wrapping mechanism for a baling machine according to claim 1, characterized in that, The winding assembly includes a winding motor (9), a drive gear (10), an outlet tube (12), a winding toothed ring (15), and a winding roller (16). The winding motor (9) is mounted on the surface of the housing (1) and is connected to the controller (6) via a communication line (7); The drive gear (10) is mounted on the output shaft of the web winding motor (9); The drive gear (10) meshes with the wire mesh gear ring (15); The outlet tube (12) passes through the axis of the winding toothed ring (15) and is connected to the shell (1). The straw bales are packed at the opening of the outlet tube (12). The winding roller (16) is rotatably mounted on the end face of the winding toothed ring (15).

3. A synchronous wrapping mechanism for a baling machine according to claim 2, characterized in that, A stabilizing plate (13) is also installed on the inner side of the wire mesh toothed ring (15), and the stabilizing plate (13) is fixedly connected to the outlet tube body (12); The surface of the stabilizing plate (13) is rotatably mounted with a plurality of positioning wheels (14), which abut against the inner surface of the wire mesh toothed ring (15).

4. A synchronous wrapping mechanism for a baling machine according to claim 2 or 3, characterized in that, The net-cutting assembly includes a net-cutting cylinder (11) and a net-cutting cutter (17). The net-cutting cutter (17) is installed at one end of the telescopic shaft of the net-cutting cylinder (11) and is used to cut the net rope after the net is wrapped.

5. A synchronous wrapping mechanism for a baling machine according to claim 4, characterized in that, The oil cylinder (11) for disconnecting the network is installed on one surface of the housing (1).

6. A synchronous wrapping mechanism for a baling machine according to claim 4, characterized in that, The winding motor (9) is used to receive the control signal from the valve group (8) and control the speed of the winding motor (9); The net-cutting cylinder (11) is used to receive the control signal from the valve group (8) and drive the net-cutting cutter (17) to cut the net rope after the net winding motor (9) finishes winding the net.

Images