A baling machine and a bale wrapping system

Abstract

The technical scheme belongs to the technical field of packing equipment and particularly relates to a packing machine's tape supply system and the packing machine. The packing machine's tape supply system comprises a rack, a tape reel mounting rack, a welding tape device, a conveying device and a tape storage bin. The welding tape device comprises a material guide base arranged on the rack and a welding tape assembly. The material guide base has two tape guide channels, and the two tape guide channels correspond to the passage of two tape reels one by one. The welding tape assembly has a welding area, and the welding tape assembly is used for welding and fixing two packing tapes in the welding area. The conveying device is used for conveying the packing tapes passing through the welding tape device into the tape storage bin. The tape storage bin has a tape supply port, and the tape supply port is used for the passage of the packing tapes passing through the conveying device. The welding tape device is arranged to realize continuous tape supply without stopping, and the tape supply buffer is formed by cooperating with the pre-stored packing tapes in the tape storage bin, so that the connection after the tape reels run out of the packing tapes is more convenient, the continuous tape operation does not need to be stopped, and the packing efficiency is higher.

Description

Technical Field

[0001] This technical solution relates to the field of packaging equipment technology, specifically to a strapping system and packaging machine for a packaging machine. Background Technology

[0002] A packing machine, also known as a strapping machine, is used to wrap strapping around the object to be packed, then cut the strapping with a cutter and fuse the ends of the strapping together to complete the packing.

[0003] For example, Chinese patent publication number CN117401225A discloses a strapping machine's feeding system, a strapping machine's core system, and a strapping machine. The strapping machine includes a machine body; a strapping system for storing and conveying strapping; a strapping material conveying system for transporting the object to be strapped; and a core system installed on the machine body for wrapping the strapping around the object to be strapped.

[0004] In actual use, the strapping tape wound on the reel in the material conveyor system is fed into the core system and then used in conjunction with the material conveying system to pack objects. However, the length of the strapping tape wound on the reel is limited. In practice, when the strapping tape in the reel runs out, the strapping machine needs to be stopped to replace the reel. The strapping process can only continue after the reel has been replaced, which affects the strapping efficiency and needs to be improved. Summary of the Invention

[0005] This technical solution aims to improve the situation where changing tape reels affects the packing efficiency of the packing machine by providing a tape supply system and a packing machine.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A strapping machine's strapping system includes a frame, the frame being provided with a strapping reel mounting frame, a strapping welding device, a conveying device, and a strapping storage bin;

[0008] The reel mounting bracket is used to mount two reels and allow the reels to rotate relative to the frame about their own axis.

[0009] The welding strip device includes a guide seat and a welding strip assembly disposed on the frame. The guide seat has two guide channels, which correspond one-to-one for the packing strips from two reels to pass through. The welding strip assembly has a welding area for the packing strips passing through the two guide channels to pass through. The welding strip assembly is used to weld and fix the two packing strips in the welding area.

[0010] The conveying device is used to transport the packing tape, which has passed through the welding tape device, to the storage bin.

[0011] The storage bin has a feeding port for the packing straps that pass through the conveyor.

[0012] Through the above technical solution, when one reel of strapping tape is nearly depleted, a welding device is used to weld and fix the strapping tape of another reel to the currently used strapping tape, achieving continuous strapping without stopping the machine. After the continuous strapping is completed, the depleted reel can be replaced, and the newly inserted reel of strapping tape is threaded along the corresponding guide channel into the welding area for the next strapping operation, thus achieving continuous strapping without stopping the machine and improving strapping efficiency. A portion of strapping tape is pre-stored in the storage bin. When the strapping tape is fed into the machine's core system through the supply port for strapping, the pre-stored strapping tape in the storage bin acts as a buffer, making the strapping operation more stable.

[0013] Preferably, the tray mounting bracket has two mounting shafts, and the two mounting shafts correspond one-to-one for the two trays to be fitted into;

[0014] The welding strip assembly includes a fixing part, a sliding part, and a welding component. The fixing part is fixed relative to the frame, the sliding part slides relative to the fixing part, and the welding component is disposed on the fixing part or the sliding part. The welding area is located between the fixing part and the sliding part, and the sliding part slides toward the fixing part to cooperate with the welding component to weld the two packing strips.

[0015] The above technical solution allows the mounting shaft to be inserted into the reel, making the reel's rotation more stable. The welding strip assembly uses a sliding part to press the two strapping strips together near the fixing part, and then welds the two strapping strips together using welding components.

[0016] Preferably, the conveying device includes a driving wheel, a driven wheel, and a conveying motor. The axes of the driving wheel and the driven wheel are parallel and rotate around their respective axes. The driving wheel and the driven wheel are used to press against the opposite end faces of the packing strap. The conveying motor is used to drive the driving wheel to rotate and convey the packing strap located between the driving wheel and the driven wheel.

[0017] The above technical solution uses a conveyor motor to drive the drive wheel to rotate and transport the packing straps to the storage bin, making it convenient to pre-store the packing straps in the storage bin.

[0018] Preferably, the welding strip device further includes a mounting base disposed on the frame, and the material guide seat and welding strip assembly are mounted on the mounting base to achieve indirect placement on the frame;

[0019] Each of the guide belt channels has an inner wall with a mounting groove, and the inner wall opposite the mounting groove has a clearance groove;

[0020] The mounting base is also provided with sensing components. There are two sensing components, and the two sensing components are arranged one-to-one with the two guide belt channels. Each sensing component includes a support part, a counterweight part, and a sensing element. The support part is rotatably disposed in the mounting groove. The counterweight part is disposed on the rotating shaft of the support part and is used to drive the support part to rotate in the direction of the corresponding clearance groove by gravity. The sensing element is disposed on the mounting base.

[0021] When there is packing strap between the mounting groove and the corresponding clearance groove, the abutting part abuts against the packing strap under the gravity of the counterweight; when there is no packing strap in the mounting groove and the corresponding clearance groove, the abutting part is embedded in the corresponding clearance groove under the gravity of the counterweight. At this time, the counterweight flips to the state of triggering the sensor. When the sensor is triggered, the sensor controls the conveying device to operate at a low speed through the controller. The controller also controls the welding device to weld the two packing straps in the welding area.

[0022] By using the above technical solution, a sensing component is set up. When there is no strapping tape between the mounting slot and the clearance slot, it is detected that the strapping tape in the current guide channel is about to run out. At this time, the conveying device is controlled to operate at a low speed, so that the conveying speed of the strapping tape is reduced. Reducing the conveying speed makes it easier to accurately control the conveying progress of the strapping tape. When the welding tape component operates to weld two strapping tapes for a continuous tape operation, the position control accuracy during welding is better, and the welding position after the two strapping tapes are welded is more accurate and stable.

[0023] Preferably, the mounting base is provided with a clamping component, and there are two clamping components, which are arranged one-to-one with the two guide channels; each clamping component includes a pressing part and an elastic element, the pressing part slides relative to the guide seat, and the elastic force of the elastic element is used to press the pressing part to the inner wall of the corresponding guide channel;

[0024] When the clamping part slides in the direction that overcomes the elastic force of the elastic element, the clamping part disengages from the corresponding packing strap.

[0025] By using the above technical solution, a clamping component is set up, and the elastic force of the elastic element presses the packing strap against the inner wall of the corresponding guide channel. The elastic force of the elastic element only provides pre-tightening force, which makes it difficult for the packing strap to shift position without affecting the normal conveying of the packing strap. At the same time, it also reduces the moving inertia of the packing strap during the conveying process, making the supply of packing strap more stable.

[0026] Preferably, it further includes adjustment components, of which two adjustment components are provided, each corresponding to one of the two guide belt channels. The adjustment components are used to drive the clamping components and sensing components corresponding to the guide belt channels to achieve adjustment. Each adjustment component includes a connecting rod and a lever. The connecting rod is connected to the clamping part and moves synchronously. The lever is disposed on the connecting rod and its position is adapted to the corresponding counterweight part.

[0027] Each of the adjustment components has a strapping state and an operating state. When the adjustment component is in the strapping state, the control link or the pressing part moves in the direction of overcoming the elastic force of the elastic element to form a channel. The link drives the lever to flip the counterweight part so that the abutment part is disengaged from the relief groove. This state is used to thread the packing strap along the corresponding guide channel into the welding area.

[0028] When the adjustment component is in operation, the pressing part presses against the packing strap corresponding to the guide belt channel under the elastic force of the elastic element, and the abutting part abuts against the packing strap corresponding to the guide belt channel under the gravity of the counterweight part. At this time, the counterweight part fails to trigger the sensing element.

[0029] By using the above technical solution, an adjustment component is set up, and the pressing part and the abutment part are adjusted synchronously by a lever. When it is necessary to insert the strapping tape along the corresponding guide channel, only one component needs to be adjusted, and the other component can be adjusted synchronously, making the operation of inserting the strapping tape more convenient.

[0030] Preferably, it further includes blocking components, two of which are provided, and the positions of the two blocking components correspond one-to-one with the two guide channels; each blocking component includes a hinge portion and a blocking portion, the hinge portion being hinged relative to the mounting base, and the blocking portion being disposed on the hinge portion;

[0031] Each of the adjustment components also includes a transmission structure connecting the connecting rod portion and the hinge portion;

[0032] When the adjustment component is in operation, the position of the connecting rod, in conjunction with the transmission structure, ensures that the blocking part is in a state where the packing strap can pass through.

[0033] When the adjustment component is in the strapping state, the transmission structure, in conjunction with the hinge, causes the blocking part to flip to the side of the welding area away from the corresponding guide channel to restrict the passage of the packing strap.

[0034] Through the above technical solution, when the strapping is being threaded, the connecting rod, through the transmission structure, drives the hinge to rotate, thereby placing the blocking part in a state that restricts the passage of the strapping. At this time, after the strapping passes through the welding area along the guide channel, it abuts against the blocking part to form a limit, making the position of the strapping more uniform in each threading operation. The transmission structure allows the connecting rod to simultaneously adjust the position of the blocking part while adjusting the pressing block and the abutment part, making operation more convenient.

[0035] Preferably, the transmission structure includes mutually compatible adjusting rods and adjusting grooves, which are respectively disposed on the connecting rod portion and the hinge portion. The adjusting groove is an elongated groove used to provide clearance space for the adjusting rod to move relative to the adjusting groove when the hinge portion is flipped.

[0036] The above technical solution achieves transmission between the connecting rod and the hinge by means of the adjusting rod and adjusting groove. The structure is simple and the installation is convenient.

[0037] Preferably, it further includes an adjustment drive component, which acts between the two adjustment components; the two adjustment components are respectively named Group A and Group B, and the adjustment drive component has three operating conditions, namely a first operating condition, a second operating condition, and a third operating condition;

[0038] When in the first working condition, the adjustment drive component drives group A to switch to the belt-threading state, while group B is in the running state;

[0039] When in the second operating condition, both group A and group B are in operation.

[0040] When in the third working condition, the adjustment drive component drives group B to switch to the belt-threading state, while group A is in the running state.

[0041] The above technical solution allows the adjustment component to switch between the belt-wearing state and the running state by adjusting the driving component, making the adjustment operation more convenient.

[0042] A packing machine, comprising:

[0043] A strapping machine feeding system as described above;

[0044] A packing material conveying system is used to transport objects to be packed; and

[0045] The mechanism system, mounted on the frame, is used to wrap the packing strap, which passes through the strapping port, around the object to be packed.

[0046] The above technical solution, through the tape supply system, enables the strapping machine to continuously supply tape from the reel while maintaining stable strapping operation, making the strapping operation more efficient.

[0047] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0048] 1. This technical solution enables continuous tape supply without stopping the machine by setting up a tape welding device. It works in conjunction with the pre-stored packing tape in the tape storage bin to form a tape supply buffer, making it more convenient to reconnect the packing tape after the tape reel is exhausted. Moreover, the tape supply operation does not require stopping the machine, thus making the packing efficiency higher.

[0049] 2. This technical solution, by setting up a sensing component, makes the detection of whether the packing tape is present in each guide belt channel more timely and accurate. When the sensing element of the sensing component is triggered, the conveyor component is controlled to operate at a low speed, making the welding operation of the welding tape device more stable.

[0050] 3. By setting up a clamping component, the conveying and positioning of the packing straps within the guide belt channel becomes more stable;

[0051] 4. By setting up blocking components, the operation of inserting the packing strap into the guide belt channel becomes more convenient;

[0052] 5. By setting adjustment components and adjustment drive components, the operation of the clamping component, sensing component and blocking component is better synchronized. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the tape supply system structure in an embodiment;

[0054] Figure 2 This is a frontal view schematic diagram of the tape supply system in an embodiment.

[0055] Figure 3 This is a partial structural schematic diagram of the welding strip device in the embodiment;

[0056] Figure 4 This is a cross-sectional schematic diagram of the welding strip device in the embodiment;

[0057] Figure 5 This is a schematic diagram of the adjustment component structure in an embodiment;

[0058] Figure 6 This is a schematic diagram of the structure of the clamping component, sensing component, blocking component, and adjusting component in an embodiment.

[0059] Figure 7 This is a partial structural diagram of an embodiment;

[0060] Figure 8 This is a schematic diagram of the adjustment drive component structure in an embodiment;

[0061] Figure 9 This is a schematic diagram of the positioning hole distribution in an embodiment;

[0062] Figure 10 This is an overall schematic diagram of the embodiment;

[0063] Figure 11 This is a schematic diagram of the missing band state of the left guide channel in an embodiment.

[0064] Reference numerals: 1. Frame; 2. Reel mounting bracket; 21. Mounting shaft; 22. Nut; 23. Detector; 3. Welding strip device; 31. Mounting base; 311. Housing; 32. Guide seat; 321. Guide channel; 3211. Mounting groove; 3212. Relief groove; 33. Welding strip assembly; 331. Fixing part; 332. Sliding part; 333. Welding component; 334. Welding area; 34. Welding drive assembly; 341. Drive motor; 342. Cam mechanism; 3421. Abutting part; 3422. Cam body; 3423. Return spring; 35. Pressing assembly; 351. Pressing part; 352. Elastic element; 353. Fixing rod; 354. Connecting block; 36. Sensing assembly; 361. Abutting part; 362. Counterweight part; 363. Sensing element; 37. Blocking assembly; 371. Hinge part; 372. Blocking part; 38. Adjusting assembly; 381. Linkage part; 3811. Long slot; 382. Lever; 383. Transmission structure; 3831. Adjusting rod; 3832. Adjusting groove; 39. Adjustment drive assembly; 391. Sliding seat; 392. Pushing part; 3921. Guide section; 393. Drive structure; 3931. Transmission rod; 3932. Drive rod; 4. Conveying device; 41. Drive wheel; 42. Driven wheel; 5. Belt storage compartment; 51. Belt supply port; 6. Positioning hole; 7. Locking spring; 8. Adjusting hole; 81. Gear hole section; 82. Connecting hole section. Detailed Implementation

[0065] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0066] Example:

[0067] A strapping machine's tape feeding system, see [link / reference] Figure 1 and Figure 2 It includes a frame 1, which is equipped with a tape mounting frame 2, a tape welding device 3, a conveying device 4, and a tape storage bin 5.

[0068] See Figure 2The reel mounting bracket 2 is fixedly installed near the bottom of the frame 1. The reel mounting bracket 2 has two mounting shafts 21, which correspond one-to-one for two reels. After the reels are fitted into the mounting shafts 21, both reels can rotate relative to the frame 1 around their own axes. Specifically, the mounting shafts 21 can rotate relative to the frame 1 around their own axes, and after the reels are fitted into the mounting shafts 21, they are coaxially fixed to the mounting shafts 21 by tightening the nuts 22. At this time, the rotation of the mounting shafts 21 drives the reels to rotate. Alternatively, the mounting shafts 21 can be directly fixed relative to the frame 1. After the reels are fitted into the mounting shafts 21, the reels are rotatably connected to the mounting shafts 21, and the nuts 22 threaded on the mounting shafts 21 are used to limit the axial movement of the reels. In actual use, two detection elements 23 are also installed on the reel mounting frame 2. The two detection elements 23 correspond one-to-one for the two reels of packing straps to pass through. The detection elements 23 generally adopt photoelectric sensors. The detection elements 23 are electrically connected to the controller or connected via Bluetooth. When the detection element 23 detects that no packing straps are passing through, the detection element 23 sends a signal to the controller.

[0069] The tape storage bin 5 is fixedly installed on the frame 1 and located above the tape reel mounting bracket 2. A tape supply port 51 is provided at the upper end of the tape storage bin 5. The conveying device 4 includes a drive wheel 41, a driven wheel 42, and a conveying motor (not shown). Both the drive wheel 41 and the driven wheel 42 are located inside the tape storage bin 5. The axes of the drive wheel 41 and the driven wheel 42 are parallel and rotatably connected to the tape storage bin 5 around their respective axes. The conveying motor is fixedly installed on the outer peripheral wall of the tape storage bin 5. The output shaft of the conveying motor is connected to the drive wheel 41 to drive the drive wheel 41 to rotate. When the strapping tape passes between the drive wheel 41 and the driven wheel 42, the drive wheel 41 and the driven wheel 42 press against the opposite end faces of the strapping tape. When the conveying motor drives the drive wheel 41 to rotate, the strapping tape is conveyed.

[0070] See Figure 2 and Figure 3 The welding strip device 3 is fixedly installed on the frame 1, located above the tape reel mounting frame 2 and on the side of the tape storage bin 5. The welding strip device 3 includes a mounting base 31, a guide seat 32, and a welding strip assembly 33. The mounting base 31 is fixedly installed on the frame 1. The welding strip assembly 33 includes a fixing part 331, a sliding part 332, and a welding component 333. The fixing part 331 is fixedly installed on the mounting base 31. The sliding part 332 slides towards the fixing part 331 and is connected to the mounting base 31. To facilitate sliding guidance, the sliding part 332 is guided by a sliding seat 391. In this example, the sliding direction of the sliding part 332 is horizontal. The welding component 333 can be a welding machine that heats the packing tape by electricity, or an ultrasonic webbing welding machine.

[0071] See Figure 3 and Figure 4A welding area 334 is provided between the fixing part 331 and the sliding part 332. The welding component 333 is installed on the fixing part 331 or the sliding part 332. When the sliding part 332 slides towards the fixing part 331, the welding area 334 becomes smaller, allowing the welding component 333 to weld the packing strap in the welding area 334. In this example, the welding component 333 is fixedly installed on the sliding part 332, and the welding area 334 is the area between the heating element of the welding component 333 and the fixing part 331.

[0072] The welding strip device 3 also includes a welding drive assembly 34, which includes a drive motor 341 and a cam mechanism 342. The drive motor 341 is fixed relative to the mounting base 31. In this example, the mounting base 31 has a housing 311, and the drive motor 341 is fixedly mounted on the housing 311. The cam mechanism 342 is connected between the drive motor 341 and the sliding part 332 to drive the sliding part 332 to reciprocate. The cam mechanism 342 includes an abutment part 3421, a cam body 3422, and a return spring 3423. The abutment part 3421 is mounted on the sliding part 332, and the cam body 3422 is rotatably connected to the mounting base 31. The rotation axis of the cam body 3422 is perpendicular to the sliding direction of the sliding part 332. One end of the return spring 3423 is connected to the mounting base 31, and the other end is connected to the sliding part 332. The return spring 3423 causes the sliding part 332 to tend to move away from the fixed part 331, while simultaneously causing the abutting part 3421 to abut against the cam body 3422. The drive motor 341 is a geared motor or a servo motor. The output shaft of the drive motor 341 is connected to the cam body 3422, driving the cam body 3422 to rotate. When the cam body 3422 rotates, the abutting part 3421 abuts against the outer circumferential surface of the cam body 3422 under the action of the return spring 3423. During the rotation of the cam body 3422, the sliding part 332 is driven to switch between a state away from the positioning part and a state close to the positioning part. When the sliding part 332 is in a state close to the positioning part, the welding part 333 is used for welding operations. To reduce friction in the contact part 3421, the contact part 3421 is annular and is rotatably connected to the sliding part 332 around its own axis. The axis of the contact part 3421 is parallel to the rotation axis of the cam body 3422.

[0073] Alternatively, the cam mechanism 342 may not require a return spring 3423. In this case, the cam body 3422 has a cam groove on the end face of the rotation axis. In this scheme, the abutment part 3421 is embedded in the cam groove. When the cam body 3422 rotates around the axis, the cam groove cooperates with the abutment part 3421 to realize the reciprocating movement of the sliding part 332.

[0074] See Figure 3 and Figure 4The guide seat 32 is mounted on the mounting base 31 and has two guide channels 321. In actual use, the two guide channels 321 correspond one-to-one for the packing straps of the two reels of the reel mounting frame 2. In this example, the guide seat 32 is located below the welding area 334. The guide seat 32 includes a partition plate, an upper left plate, a middle left plate, and a lower left plate located on the left side of the partition plate and distributed vertically, an upper right plate, a middle right plate, and a lower right plate located on the right side of the partition plate and distributed vertically, and a cover plate located on the partition plate away from the mounting base 31. In this example, the upper left plate is integrally fixed with the fixing part 331. The two guide channels 321 are distributed one-to-one on the left and right sides of the partition plate. This example shows the guide seat 32 formed by assembly. In practice, the guide seat 32 can also adopt an integral structure, with corresponding guide channels 321 formed by slotting.

[0075] The upper ends of the two guide channels 321 are close to each other in the direction of approaching the welding area 334. Specifically, one guide channel 321 extends vertically, while the other guide channel 321 extends at an angle towards that guide channel 321. To reduce friction when the strapping passes through, a rotating wheel is provided at the corner of the angled extension. When the strapping passes through the corresponding corner, the rotating wheel abuts against the strapping, thereby reducing frictional resistance.

[0076] In actual use, the strapping straps of the two reels of the tape mounting bracket 2 pass through the two guide channels 321 one by one. Then, the two strapping straps enter from the lower side of the welding area 334 and exit from the upper side. The strapping strap of one reel is used first. When the strapping strap of the reel is used up, the welding tape assembly 33 welds and fixes the two strapping straps in the welding area 334. The used strapping strap of the reel will drive the strapping strap of the other reel to achieve continuous tape supply without stopping the machine. During the tape supply process, the nut 22 can be unscrewed to remove the used reel, a new reel can be installed and the nut 22 can be tightened. Then, its strapping strap is extended along the corresponding guide channel 321 to the welding area 334 for the next welding.

[0077] See Figure 4 and Figure 5 The mounting base 31 is also provided with a clamping component 35, a sensing component 36, a blocking component 37, and an adjusting component 38. Two clamping components 35, two sensing components 36, and two blocking components 37 are provided, each corresponding to one of the two guide belt channels 321. The clamping components 35, two sensing components 36, and two blocking components 37 corresponding to each guide belt channel 321 are distributed sequentially from bottom to top.

[0078] Each clamping assembly 35 includes a clamping part 351 and an elastic element 352. The clamping part 351 slides relative to the guide seat 32. In this example, the clamping part 351 slides horizontally and is connected to the mounting base 31. A through groove is provided on the side wall of the corresponding guide channel 321 away from the other guide channel 321, and the position of the clamping part 351 corresponds to the through groove. The elastic element 352 is mounted on the mounting base 31 and is a spring. The elastic force of the elastic element 352 is used to press the clamping part 351 against the inner wall of the corresponding guide channel 321. Specifically, the end of the elastic element 352 away from the mounting base 31 can directly abut against the clamping part 351 or indirectly act on the clamping part 351. In this example, the mounting base 31 has a horizontally extending strip-shaped hole corresponding to the clamping part 351. Two fixing rods 353 are fixed to the end face of the clamping part 351 near the strip-shaped hole. A connecting block 354 is fixed to the fixing rod 353. The connecting block 354 is located at the end of the mounting base 31 away from the clamping part 351. One end of the elastic element 352 is connected to the mounting base 31, and the other end is connected to the connecting block 354. The elastic force of the elastic element 352 is indirectly applied to the clamping part 351 through the connection block 354 and the fixing rods 353. For guiding the sliding, a guide rod is also fixed to the mounting base 31. The guide rod slides through the connecting block 354 to guide the sliding of the connecting block 354. The elastic element 352 is sleeved on the guide rod to achieve installation. When the clamping part 351 slides in a direction that overcomes the elastic force of the elastic element 352, the clamping part 351 disengages from the corresponding packing strap.

[0079] See Figure 4 , Figure 5 and Figure 6 Each guide channel 321 has a mounting groove 3211 on its inner wall, and the inner wall opposite to the mounting groove 3211 has a clearance groove 3212. Each sensing component 36 includes a stop part 361, a counterweight part 362, and a sensing element 363. The stop part 361 is rotatably disposed in the corresponding mounting groove 3211. The stop part 361 is an eccentric wheel or has a protruding structure on its outer peripheral wall. The rotating shaft of the stop part 361 is rotatably connected to the mounting base 31 or the guide seat 32. The counterweight part 362 is fixedly installed on the rotating shaft of the stop part 361. Under the action of gravity, the counterweight part 362 drives the stop part 361 to rotate, causing the stop part 361 to tend to flip into the clearance groove 3212. The sensing element 363 is installed on the mounting base 31 or the guide seat 32, and the sensing element 363 is located below the counterweight part 362. When the abutment part 361 flips into the recessed groove 3212, the counterweight part 362 flips around the pivot to the state of triggering the sensor 363.

[0080] In this example, the pivot of the abutment 361 passes through the mounting base 31, and the abutment 361 is rotatably connected to the mounting base 31 via the pivot. The counterweight 362 is located on the side of the mounting base 31 opposite to the abutment 361 and is fixedly connected to the pivot of the abutment 361. For ease of installation, the counterweight 362 is fixed to the pivot by bolts. The counterweight 362, by its own weight, causes the abutment 361 to tend to flip toward the corresponding clearance groove 3212. The sensing element 363 is a proximity sensor or a photoelectric sensor. The sensing element 363 is fixedly mounted on the mounting base 31, and the sensing element 363 and the counterweight 362 are located on the same side of the mounting base 31.

[0081] When there is packing tape between the mounting groove 3211 and the corresponding clearance groove 3212 of the guide belt channel 321, the abutment part 361 abuts against the packing tape under the gravity of the counterweight part 362. At this time, the counterweight cannot trigger the sensor 363. When the packing tape is used and the packing tape in the reel is completely unwound, the packing tape passes through the guide belt channel 321 until there is no packing tape in the mounting groove 3211 and the corresponding clearance groove 3212. At this time, the abutment part 361 is embedded in the corresponding clearance groove 3212 under the gravity of the counterweight part 362. At this time, the counterweight part 362 flips to the state of triggering the sensor 363. When the sensor 363 is triggered, the sensor 363 controls the conveyor device 4 to operate at a low speed through the controller. In this scheme, the low speed operation state mainly means that the speed of the conveyor motor in this state is less than one-third of the speed in the normal conveying state. When the sensor 363 is triggered, the controller also controls the welding tape assembly 33 to weld the two packing tapes in the welding area 334. In practical use, the welding function of the welding ribbon assembly 33 can be combined with a delay control program. For example, after the sensor 363 is triggered, the welding ribbon assembly 33 will run again after a 1-second delay, which can reduce the excess amount of the packing tape after welding.

[0082] See Figure 4 , Figure 5 and Figure 6 Each blocking component 37 includes a hinge portion 371 and a blocking portion 372. The hinge portion 371 is hinged relative to the mounting base 31. In actual installation, the hinge portion 371 can be hinged to the mounting base 31, or optionally hinged to the guide seat 32, or hinged to the housing 311. The blocking portion 372 is fixedly mounted to the hinge portion 371. When the blocking portion 372 is flipped to a position offset from the end of the welding area 334 away from the corresponding guide channel 321, the packing strap of the corresponding guide channel 321 can pass through. When the blocking portion 372 is flipped to a position located at the end of the welding area 334 away from the corresponding guide channel 321, the blocking portion 372 is used to restrict the passage of the packing strap of the corresponding guide channel 321. At this time, it can be used for positioning when the packing strap enters the guide channel 321 and the welding area 334.

[0083] See Figure 5 and Figure 6 Two adjustment components 38 are provided, each corresponding to one of the two guide channels 321. The adjustment components 38 are used to synchronously adjust the corresponding clamping components 35, sensing components 36, and blocking components 37 of the guide channels 321. Each adjustment component 38 includes a connecting rod 381, a lever 382, ​​and a transmission structure 383. The connecting rod 381 is disposed on and fixed relative to the clamping part 351. The installation of the connecting rod 381 is designed according to actual needs; it can be directly fixed to the clamping part 351 or indirectly fixed to the mounting part. In this example, the connecting rod 381 is located on the side of the mounting base 31 away from the clamping part 351, and the connecting rod 381 is fixedly installed on the connecting block 354, and indirectly disposed on the clamping part 351 through the connecting block 354 and the fixing rod 353.

[0084] The lever 382 is fixedly installed on the connecting rod 381 and its position is adapted to the corresponding counterweight 362. In actual installation, the lever 382 is fixed to the connecting rod 381 by tightening bolts. In order to facilitate the adjustment of the position of the lever 382, ​​an elongated hole 3811 is provided on the connecting rod 381 in the vertical direction. The bolt passes through the elongated hole 3811. When it is necessary to adjust the position of the lever 382, ​​loosen the bolts to adjust the position of the lever 382 along the elongated hole 3811 and then tighten the bolts to fix it. This makes the adjustment of the lever 382 and the counterweight 362 more convenient.

[0085] A transmission structure 383 is disposed between the connecting rod portion 381 and the hinge portion 371. The transmission structure 383 includes an adjusting rod 3831 and an adjusting groove 3832 that are adapted to each other. The adjusting rod 3831 and the adjusting groove 3832 are respectively disposed on the connecting rod portion 381 and the hinge portion 371. The adjusting groove 3832 is an elongated groove used to provide clearance space for the adjusting rod 3831 to move relative to the adjusting groove 3832 when the hinge portion 371 is flipped. In this example, the adjusting rod 3831 is fixed to the hinge portion 371, and the adjusting groove 3832 is formed in the connecting rod portion 381. In practice, the transmission structure 383 can also be a linkage transmission method, that is, a hinge rod is provided between the hinge part 371 and the connecting rod part 381. One end of the hinge rod is hinged to the connecting rod part 381, and the other end is hinged to the connecting rod part 381. When the connecting rod part 381 slides, the hinge part 371 is driven to swing through the transmission of the hinge rod to adjust the position of the blocking part 372.

[0086] In actual use, each adjustment component 38 has a strapping state and an operating state. When the adjustment component 38 is in the strapping state, the control linkage 381 or the pressing part 351 moves in the direction of overcoming the elastic force of the elastic element 352 to form a channel. The linkage 381 drives the lever 382 to flip the counterweight 362 so that the abutment 361 disengages from the relief groove 3212. The transmission structure 383 cooperates with the hinge part 371 to make the blocking part 372 flip to the side of the welding area 334 away from the corresponding guide channel 321 to restrict the passage of the packing strap. This state is used to thread the packing strap along the corresponding guide channel 321 into the welding area 334.

[0087] When the adjustment component 38 is in operation, the pressing part 351 presses against the packing strap of the corresponding guide channel 321 under the elastic force of the elastic member 352, and the abutting part 361 abuts against the packing strap of the corresponding guide channel 321 under the gravity of the counterweight part 362. At this time, the counterweight part 362 fails to trigger the sensing member 363, and the position of the connecting rod part 381, in conjunction with the transmission structure 383, makes the blocking part 372 in a state where the packing strap can pass through.

[0088] See Figure 7 and Figure 8 An adjustment drive assembly 39 is also provided on the mounting base 31. The adjustment drive assembly 39 acts between two adjustment assemblies 38. The two adjustment assemblies 38 are named Group A and Group B, respectively. The adjustment drive assembly 39 has three working conditions, namely the first working condition, the second working condition, and the third working condition. When in the first working condition, the adjustment drive assembly 39 drives Group A to switch to the belt threading state, and Group B is in the running state. When in the second working condition, both Group A and Group B are in the running state. When in the third working condition, the adjustment drive assembly 39 drives Group B to switch to the belt threading state, and Group A is in the running state.

[0089] The adjustment drive assembly 39 includes a sliding seat 391, a pushing part 392, and a drive structure 393. The sliding seat 391 is slidably connected to the mounting base 31, and the sliding direction of the sliding seat 391 is parallel to the sliding direction of the pressing part 351. The pushing part 392 is disposed on the sliding seat 391 to move the connecting rod part 381.

[0090] See Figure 8 and Figure 9To facilitate the fixing of the adjustment drive assembly 39 after it has been adjusted to the corresponding working condition, the push part 392 is slidably connected to the slide seat 391, and the sliding direction of the push part 392 is perpendicular to the sliding direction of the slide seat 391. The mounting base 31 or the guide seat 32 is provided with three positioning holes 6, which correspond one-to-one with the three working conditions of the adjustment drive assembly 39 for the push part 392 to be inserted and positioned accordingly. The slide seat 391 is also provided with a locking spring 7, and the elastic force of the locking spring 7 makes the push part 392 tend to insert into the positioning hole 6. When the adjustment drive assembly 39 is adjusted to the corresponding working condition, the elastic force of the locking spring 7 drives the push part 392 to slide, so that the push part 392 is inserted into the corresponding positioning hole 6 to fix its position. In order to facilitate the insertion of the push part 392 into the corresponding positioning hole 6, the end of the push part 392 near the positioning hole 6 has a guide section 3921, which is tapered to guide the push part 392 when it is inserted into the corresponding positioning hole 6.

[0091] The drive structure 393 is disposed on the sliding seat 391 to drive the push part 392 to slide. The drive structure 393 includes a transmission rod 3931 and a drive rod 3932. The transmission rod 3931 is hinged to the end of the push part 392 away from the positioning hole 6. The drive rod 3932 is hinged to the end of the transmission rod 3931 away from the push part 392 and is hinged to the sliding seat 391. The drive rod 3932 swings to drive the push part 392 to overcome the elastic force of the locking spring 7 and disengage from the corresponding positioning hole 6.

[0092] See Figure 8 , Figure 9 and Figure 10 Considering that the isolation and protection of the housing 311 makes it inconvenient to observe the positioning hole 6 when the pushing part 392 is inserted into the positioning hole 6, in order to make the operation of the pushing part 392 being inserted into the corresponding positioning hole 6 more convenient, the housing 311 also has an adjustment hole 8. The adjustment hole 8 allows the drive rod 3932 to pass through to the outside of the housing 311. The adjustment hole 8 includes three position hole segments 81 and a connecting hole segment 82 connecting the three position hole segments 81. The three position hole segments 81 correspond one-to-one with the three positioning holes 6. In this example, the connecting hole segment 82 is located below the three position hole segments 81.

[0093] When the drive rod 3932 aligns with a gear position hole section 81 along the connecting hole section 82, the pushing part 392 aligns with the corresponding positioning hole 6. When the pushing part 392 is inserted into the corresponding positioning hole 6 under the action of the locking spring 7, the drive rod 3932 moves synchronously to the corresponding gear position hole section 81. The design of the gear position hole section 81 corresponding to the positioning hole 6 makes the switching operation of the adjustment drive assembly 39 between the three working conditions more convenient.

[0094] Alternatively, the adjustment drive assembly 39 can also adopt an electric adjustment structure. In this scheme, a pusher 392 is provided between the two connecting rods 381. The pusher 392 is driven to reciprocate by a motor in conjunction with a cam mechanism 342, thereby realizing the switching of the adjustment drive assembly 39 between three working conditions.

[0095] The specific work process of this plan is as follows:

[0096] In standby mode, first install the reels on both mounting shafts 21 of the reel mounting frame 2. Then, pass the strapping tape from each reel through the two detection elements 23, then through the two guide channels 321 and extend to the welding area 334. Position the insertion depth of the strapping tape using the corresponding blocking components 37. Next, extend one of the strapping tapes through the conveyor device 4 and exit through the feed port 51. The end of the strapping tape is then used to transport the tape to the core system for packaging. The conveyor motor operates to transport the strapping tape into the storage bin 5, forming a pre-stored amount of tape.

[0097] In use, the conveyor motor operates in conjunction with the core system according to a preset control program, conveying the required amount of packing straps to the storage bin 5 for later use. Figure 4 and Figure 11 When the currently used packing tape is almost exhausted, the corresponding detection element 23 is triggered first. At this time, the detection element 23 transmits a signal to the controller, and the controller controls the conveyor device 4 to switch to a low-speed operation state. Then, when there is no packing tape between the corresponding mounting slot 3211 and the clearance slot 3212, the abutment part 361 flips and embeds into the clearance slot 3212 under the action of the counterweight part 362. At the same time, the counterweight part 362 triggers the sensing element 363. At this time, the control conveyor device 4 is still in a low-speed operation state, and the control of the welding tape assembly 33 is to weld the two packing tapes in the welding area 334. Reducing the conveying speed facilitates precise control of the packing tape conveying progress, and makes the welding tape assembly 33 operate with better precision in welding the two packing tapes for the tape continuation operation.

[0098] When a used reel needs to be replaced with a new one, the used reel is first removed from the mounting shaft 21, a new reel is installed, and the strapping tape of the new reel passes through the corresponding detection element 23. The detection element 23 detects the strapping tape passing through. Then, the driving assembly 39 adjusts the corresponding adjusting assembly 38 to slide into the tape-threading state. At this time, a channel is left between the pressing part 351 of the clamping assembly 35 corresponding to the guide channel 321 and the inner wall of the guide channel 321 for the strapping tape to pass through. The abutting part 361 of the sensing assembly 36 is adjusted by the adjusting assembly 38 to disengage from the clearance groove 3212 to allow the strapping tape to pass through. At this time, the sensing element 363 is not triggered. Combined with the detection element 23 detecting the strapping tape, the controller controls the conveyor device 4 to switch to normal conveying state. The blocking part 372 of the blocking assembly 37 flips to restrict the passage of the strapping tape to position the inserted strapping tape.

[0099] After the strapping is inserted, the drive assembly 39 is adjusted to ensure that both adjustment assemblies 38 are in operation. In this state, the pressing part 351 of the pressing assembly 35, under the elastic force of the elastic member 352, presses against the corresponding strapping against the inner wall of the guide channel 321 to form a pre-tension, making it less likely for the strapping to shift position and reducing the inertia of the strapping during the conveying process, thus making the supply of strapping more stable. The abutting part 361 of the sensing assembly 36, under the action of the counterweight part 362, abuts against the strapping, and the counterweight part 362 cannot trigger the sensing member 363, so that it can be detected in time when the strapping is consumed to realize the next welding action. The blocking parts 372 of the blocking assembly 37 are all flipped to a state where the strapping can pass through.

[0100] This application also discloses a baling machine, including the strapping system described above, a baling material conveying system, and a core system. The baling material conveying system is used to transport the object to be baled and is installed on the frame 1. The core system is used to wrap the baling strap that passes through the strapping port 51 around the object to be baled. Both the baling material conveying system and the core system are prior art and will not be described in detail here.

[0101] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution.

Claims

1. A tape supply system for a packaging machine, characterized by: It includes a frame (1), which is provided with a tape mounting frame (2), a tape welding device (3), a conveying device (4) and a tape storage bin (5); The reel mounting bracket (2) is used to mount two reels and allow the reels to rotate relative to the frame (1) about their own axis; The welding strip device (3) includes a guide seat (32) disposed on the frame (1) and a welding strip assembly (33). The guide seat (32) has two guide channels (321), which correspond one-to-one for the packing strips of two reels to pass through. The welding strip assembly (33) has a welding area (334), which is used for the packing strips passing through the two guide channels (321) to pass through. The welding strip assembly (33) is used to weld and fix the two packing strips in the welding area (334). The conveying device (4) is used to convey the packing tape passing through the welding tape device (3) to the storage bin (5); The storage bin (5) has a strapping port (51) for supplying the packing straps that pass through the conveying device (4); The welding strip device (3) further includes a mounting base (31) disposed on the frame (1), and the guide seat (32) and the welding strip assembly (33) are mounted on the mounting base (31) to achieve indirect placement on the frame (1); Each of the guide channels (321) has an inner wall with a mounting groove (3211), and the inner wall opposite to the mounting groove (3211) has a clearance groove (3212); The mounting base (31) is also provided with a sensing component (36), which includes a contact part (361), a counterweight part (362), and a sensing element (363); The mounting base (31) is provided with a clamping component (35), which includes a pressing part (351) and an elastic element (352); It also includes adjustment components (38), of which two are provided, each corresponding to one of the two guide belt channels (321). The adjustment components (38) are used to drive the clamping components (35) and sensing components (36) corresponding to the guide belt channels (321) to achieve adjustment. Each adjustment component (38) includes a connecting rod (381) and a lever (382). The connecting rod (381) is connected to the pressing part (351) and moves synchronously. The lever (382) is located on the connecting rod (381) and its position is adapted to the corresponding counterweight part (362). Each of the adjustment components (38) has a strapping state and an operating state. When the adjustment component (38) is in the strapping state, the control link (381) or the clamping part (351) moves in the direction of overcoming the elastic force of the elastic element (352) to form a channel. The link (381) drives the lever (382) to push the counterweight (362) to flip so that the abutment part (361) is disengaged from the relief groove (3212). This state is used to insert the packing strap along the corresponding guide channel (321) into the welding area (334). When the adjustment component (38) is in operation, the pressing part (351) presses against the packing strap corresponding to the guide channel (321) under the elastic force of the elastic member (352), and the abutting part (361) abuts against the packing strap corresponding to the guide channel (321) under the gravity of the counterweight part (362). At this time, the counterweight part (362) fails to trigger the sensing element (363). The lever (382) is fixed to the connecting rod (381) by bolts. An elongated hole (3811) is provided on the connecting rod (381) in the vertical direction, and the bolt passes through the elongated hole (3811).

2. A tape supply system for a packing machine according to claim 1, characterized in that: The tray mounting bracket (2) has two mounting shafts (21), and the two mounting shafts (21) correspond one-to-one for the two trays to be fitted into; The welding strip assembly (33) includes a fixing part (331), a sliding part (332), and a welding component (333). The fixing part (331) is fixed relative to the frame (1), the sliding part (332) slides relative to the fixing part (331), and the welding component (333) is disposed on the fixing part (331) or the sliding part (332). The welding area (334) is located between the fixing part (331) and the sliding part (332). The sliding part (332) slides toward the fixing part (331) to cooperate with the welding component (333) to weld the two packing strips.

3. A tape supply system for a packaging machine according to claim 1, characterized in that: The conveying device (4) includes a drive wheel (41), a driven wheel (42), and a conveying motor. The axes of the drive wheel (41) and the driven wheel (42) are parallel and rotate around their respective axes. The drive wheel (41) and the driven wheel (42) are used to press against the opposite end face of the packing strap. The conveying motor is used to drive the drive wheel (41) to rotate and convey the packing strap located between the drive wheel (41) and the driven wheel (42).

4. The strapping system for a packing machine according to claim 1, characterized in that: Two sensing components (36) are provided, and the two sensing components (36) are arranged one-to-one with the two guide channels (321). Each sensing component (36) includes a stop part (361), a counterweight part (362), and a sensing element (363). The stop part (361) is rotatably disposed in the mounting groove (3211). The counterweight part (362) is disposed on the rotating shaft of the stop part (361) and is used to drive the stop part (361) to rotate in the direction of the corresponding relief groove (3212) by gravity. The sensing element (363) is disposed on the mounting base (31). When there is a packing strap between the mounting groove (3211) and the corresponding clearance groove (3212), the abutment part (361) abuts against the packing strap under the gravity of the counterweight part (362); when there is no packing strap in the mounting groove (3211) and the corresponding clearance groove (3212), the abutment part (361) is embedded in the corresponding clearance groove (3212) under the gravity of the counterweight part (362). At this time, the counterweight part (362) flips to the state of triggering the sensor (363). When the sensor (363) is triggered, the sensor (363) controls the conveying device (4) to operate at a low speed through the controller. The controller also controls the welding strip device (3) to weld the two packing straps in the welding area (334).

5. The strapping system for a packing machine according to claim 4, characterized in that: Two clamping components (35) are provided, and the two clamping components (35) are correspondingly arranged with the two guide channels (321); each clamping component (35) includes a pressing part (351) and an elastic element (352). The pressing part (351) slides relative to the guide seat (32), and the elastic force of the elastic element (352) is used to press the pressing part (351) to the inner wall of the corresponding guide channel (321); When the pressing part (351) slides in the direction that overcomes the elastic force of the elastic member (352), the pressing part (351) disengages from the corresponding packing strap.

6. A strapping machine feeding system according to claim 1, 4, or 5, characterized in that: It also includes a blocking component (37), of which two blocking components (37) are provided, and the positions of the two blocking components (37) correspond one-to-one with the two guide channels (321); each blocking component (37) includes a hinge portion (371) and a blocking portion (372), the hinge portion (371) is hinged relative to the mounting base (31), and the blocking portion (372) is disposed on the hinge portion (371); Each of the adjustment components (38) further includes a transmission structure (383) connecting the link portion (381) and the hinge portion (371); When the adjustment component (38) is in operation, the position of the connecting rod (381) is coordinated with the transmission structure (383) so that the blocking part (372) is in a state where the packing strap can pass through; When the adjustment component (38) is in the strapping state, the transmission structure (383) cooperates with the hinge (371) to cause the blocking part (372) to flip to the side of the welding area (334) away from the corresponding guide channel (321) to restrict the passage of the packing strap.

7. The strapping system for a packing machine according to claim 6, characterized in that: The transmission structure (383) includes mutually adapted adjusting rods (3831) and adjusting grooves (3832). The adjusting rods (3831) and adjusting grooves (3832) are respectively provided on the connecting rod part (381) and the hinge part (371). The adjusting groove (3832) is an elongated groove used to provide clearance space for the adjusting rod (3831) to move relative to the adjusting groove (3832) when the hinge part (371) is flipped.

8. A strapping machine feeding system according to claim 1 or 7, characterized in that: It also includes an adjustment drive component (39), which acts between the two adjustment components (38); the two adjustment components (38) are named Group A and Group B respectively, and the adjustment drive component (39) has three working conditions, namely the first working condition, the second working condition and the third working condition; When in the first working condition, the adjustment drive component (39) drives group A to switch to the belt-wearing state, and group B is in the running state; When in the second operating condition, both group A and group B are in operation. When in the third working condition, the adjustment drive component (39) drives group B to switch to the belt-wearing state, and group A is in the running state.

9. A packaging machine, characterized in that: include: A strapping machine feeding system according to any one of claims 1-8; Packaging material conveying system, used for transporting objects to be packaged; as well as The mechanism system, mounted on the frame (1), is used to wrap the packing strap through the feed port (51) around the object to be packed.

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