Bag opener for dosing
By employing gripping claws to flip and grab the bag from the outside and using a pull-blade to cut it in the bag-breaking machine, the problems of raw material bag deformation and residual material in existing technologies have been solved, resulting in less raw material waste and higher bag-breaking efficiency.
Patent Information
- Application Number
- CN202511706442.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2045-11-20
AI Technical Summary
Existing automatic bag-breaking machines are prone to bag deformation and material residue at the corners when grabbing and cutting raw material bags, resulting in material waste.
The gripper flips and grabs the bag from the outside, and cuts the middle part of the raw material bag with a pull cutter. Combined with the elastic bag pressing part and positioning sleeve guide, it prevents the bag from deforming and leaving material residue.
It effectively prevents material residue from the four corners of the raw material bag, reduces damage, avoids raw material waste, and improves the stability and efficiency of gripping and cutting.
Smart Images

Figure CN121158504B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ingredient technology, and more specifically to a bag-breaking machine for ingredient preparation. Background Technology
[0002] In industries such as food, chemicals, new materials, lithium batteries, and pharmaceuticals, raw materials are often in the form of powders and granules. Therefore, the packaging of their goods is generally the same. When processing and production are required, forklift operators need to use forklifts to move the whole stack of bagged raw materials to the feeding port in the raw material warehouse, and then use an automatic bag-breaking machine to feed and transport the materials.
[0003] However, the existing automatic bag breaking machine has certain defects: when the equipment grabs the raw material bag, the gripper inserts into the bag from both sides and flips it inward. The above operation method makes the raw material bag easy to deform. The gripper does not easily grab the four corners of the bag during the bag breaking process, and the four corners of the bag are prone to residual material, resulting in waste of raw materials.
[0004] Meanwhile, existing bag-breaking machines directly cut raw material bags with a cutter, resulting in severe damage to the bags and easy material buildup, which also leads to waste of raw materials. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a bag-breaking machine for ingredient preparation. During the gripping process, the machine flips the bag from the outside to prevent deformation of the raw material bag and to prevent material residue at the four corners of the bag. At the same time, it performs a pull-blade cut on the middle part of the raw material bag, resulting in less damage to the bag and preventing material residue from remaining in the bag, thus preventing waste of raw materials.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A bag-breaking machine for ingredient dispensing includes a robot body, a placement platform, and a clamping mechanism, wherein the placement platform is provided at the end of the robot body;
[0008] The clamping mechanism includes an elastic pressure bag part, a mounting plate, a rotating shaft, and a gripping claw. The mounting plate is provided on both opposite sides of the lower part of the placement platform.
[0009] Two elastic pressure bag parts are provided, and the elastic pressure bag parts are respectively provided on two opposite sides of the mounting plate;
[0010] The elastic pressure bag part includes a vertical slide bar, a horizontal bar, a high-strength compression spring, and a pressure bag rack. One end of the vertical slide bar slides through the rear end of the mounting plate to the lower part of the mounting plate. The horizontal bar is provided at the lower end of the vertical slide bar, and the pressure bag rack is provided on the outer wall of the horizontal bar.
[0011] The outer wall of the vertical slide bar is fitted with the high-strength compression spring, and the high-strength compression spring is correspondingly disposed between the mounting plate and the horizontal bar;
[0012] The rotating shaft is provided at the lower part of the front end of the mounting plate, and the gripping claw is provided on the outer wall of the rotating shaft, and the gripping claw is rotatable outward.
[0013] The robot body has a puller section on its side, which includes a frame support, a rotating crank arm, a connecting rod, a support shaft, a bag-breaking cutter, and a cutter bearing seat assembly. The end of the frame support is equipped with a power unit, and the output end of the power unit is equipped with the rotating crank arm.
[0014] The end of the rotating crank arm is connected to the connecting rod, the end of the connecting rod is hinged to the mounting plate, the end of the mounting plate is provided with the bag-breaking knife, and the two ends of the bag-breaking knife are provided with the support shaft;
[0015] Both ends of the frame support are provided with the tool bearing seat assembly, and both ends of the support shaft are respectively inserted into the tool bearing seat assembly.
[0016] As an improved technical solution, a positioning sleeve is provided through the outer wall of the mounting plate, and the positioning sleeve is correspondingly fitted onto the outer wall of the vertical slide rod.
[0017] As an improved technical solution, a limiting ring is provided at the end of the vertical slide rod, and the limiting ring and the vertical slide rod are detachably connected.
[0018] As an improved technical solution, a fixed bearing seat is provided at the lower end of the mounting plate. There are two fixed bearing seats, and the two ends of the rotating shaft pass through the opposite fixed bearing seats respectively.
[0019] As an improved technical solution, a slot is provided at the end of the support shaft, and one end of the bag-breaking knife is inserted into the slot.
[0020] As an improved technical solution, the power unit includes a motor and a motor mounting base, with the motor mounting base disposed at the end of the frame support; the motor is disposed on the side of the motor mounting base;
[0021] The output end of the motor passes through the motor mounting base and is connected to the rotating crank arm.
[0022] As an improved technical solution, two bag-breaking knives are provided, and the bag-breaking knives are arranged sequentially.
[0023] As an improved technical solution, the tool bearing housing assembly includes an upper bearing and a lower bearing, with the upper bearing disposed at the upper end of the lower bearing;
[0024] The support shaft is provided in a plurality of manners, and each support shaft is respectively provided in a one-to-one correspondence with the upper bearing and the lower bearing.
[0025] As an improved technical solution, the gripping claw and the bag-pressing rack are each provided with a plurality of claws, and the gripping claw and the bag-pressing rack are arranged alternately and correspondingly in sequence.
[0026] By adopting the above technical solution, the present invention has the following beneficial effects:
[0027] 1. This batching bag breaking machine, through the clamping mechanism, first flattens and shapes the raw material bag during gripping. At the same time, the power source drives the gripping claws to flip the bag outward, preventing deformation of the raw material bag and effectively preventing material residue at the four corners of the bag. Simultaneously, the pull cutter part performs a pull cut on the middle part of the raw material bag, gradually widening and deepening the cut of the raw material bag. This minimizes damage to the raw material bag and avoids material residue, preventing waste of raw materials.
[0028] 2. The bag-breaking machine for batching uses the positioning sleeve to guide the vertical slide rod, which facilitates the vertical movement of the vertical slide rod.
[0029] 3. The bag-breaking machine for batching uses a limiting ring to limit the end of the vertical slide bar, preventing the vertical slide bar from slipping out of the mounting plate.
[0030] 4. This batching bag-breaking machine, by setting the slot, facilitates the installation and disassembly of the bag-breaking blade, and makes it convenient to maintain the bag-breaking blade.
[0031] 5. This bag-breaking machine for batching improves the stability of the bag-breaking blade during operation by fixing the two sides of the bag-breaking blade with the lower bearing and the upper bearing. Attached Figure Description
[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.
[0033] Figure 1 This is a schematic diagram of a bag-breaking machine for ingredient preparation.
[0034] Figure 2 This is a schematic diagram of the clamping mechanism.
[0035] Figure 3 This is a partially enlarged schematic diagram of the clamping mechanism;
[0036] Figure 4 This is a schematic diagram of the elastic compression bag structure;
[0037] Figure 5 A schematic diagram of the broach assembly;
[0038] Figure 6 This is the front view of the broach section;
[0039] Figure 7 This is a left view of the broach section.
[0040] In the attached diagram, 1 is the robot body, 2 is the placement platform, 3 is the clamping mechanism, 31 is the elastic bag-pressing part, 311 is the vertical slide bar, 312 is the horizontal bar, 313 is the high-strength compression spring, 314 is the bag-pressing rack, 315 is the positioning sleeve, 316 is the limit ring, 32 is the mounting plate, 33 is the rotating shaft, 34 is the gripper, 35 is the fixed bearing seat, 4 is the pull-out knife part, 41 is the frame support, 42 is the rotating crank arm, 43 is the connecting rod, 44 is the support shaft, 441 is the slot, 45 is the bag-breaking knife, 46 is the knife bearing seat assembly, 461 is the upper bearing, 462 is the lower bearing, 5 is the power unit, 51 is the motor, and 52 is the motor mounting base. Detailed Implementation
[0041] The technical solution of the present invention will be described in detail below with reference to specific embodiments. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and are therefore only examples, and should not be used to limit the scope of protection of the present invention. Example 1
[0042] like Figure 1-6 As shown, the present invention provides a bag breaking machine for batching, including a robot body 1, a placement platform 2 and a clamping mechanism 3. The placement platform 2 is provided at the end of the robot body 1, and the robot body 1 is configured to operate automatically.
[0043] The clamping mechanism 3 includes an elastic pressure bag part 31, a mounting plate 32, a rotating shaft 33, and a gripping claw 34. The mounting plate 32 is provided on both opposite sides of the lower part of the placement platform 2.
[0044] Two elastic compression bag parts 31 are provided, and the elastic compression bag parts 31 are respectively provided on two opposite sides of the mounting plate 32. The two ends of the raw material bag are shaped and pressed by the opposite elastic compression bag parts 31.
[0045] The elastic pressure bag part 31 includes a vertical slide bar 311, a horizontal bar 312, a high-strength compression spring 313, and a pressure bag rack 314. One end of the vertical slide bar 311 slides through the rear end of the mounting plate 32 to the lower part of the mounting plate 32. The lower end of the vertical slide bar 311 is provided with the horizontal bar 312, and the outer wall of the horizontal bar 312 is provided with the pressure bag rack 314. In this embodiment, the mounting plate 32 is provided with mounting holes (not shown in the figure) to facilitate the installation of the vertical slide bar 311.
[0046] A high-pressure compression spring 313 is fitted on the outer wall of the vertical slide bar 311, and the high-pressure compression spring 313 is correspondingly arranged between the mounting plate 32 and the horizontal bar 312. The high-pressure compression spring 313 is set to elastically push the vertical slide bar 311.
[0047] A rotating shaft 33 is provided at the lower part of the front end of the mounting plate 32, and a fixed bearing seat 35 is provided at the lower end of the mounting plate 32. There are two fixed bearing seats 35, and the two ends of the rotating shaft 33 pass through the opposite fixed bearing seats 35 respectively. The fixed bearing seats 35 facilitate the installation of the rotating shaft 33.
[0048] A gripper 34 is provided on the outer wall of the rotating shaft 33, and the gripper 34 can be rotated outward; in this embodiment, a cylinder can be provided as a power source, and the cylinder drives the rotating shaft 33 to rotate through the connecting rod 43 mechanism. Since the technical solution is not known, it will not be described in detail in this embodiment.
[0049] Several gripping claws 34 and bag-pressing racks 314 are provided, and the gripping claws 34 and bag-pressing racks 314 are arranged alternately and correspondingly. Setting several gripping claws 34 and bag-pressing racks 314 helps to improve the gripping effect on raw material bags.
[0050] The robot body 1 has a puller 4 on its side. The puller 4 includes a frame support 41, a rotating crank arm 42, a connecting rod 43, a support shaft 44, a bag-breaking knife 45, and a knife bearing seat assembly 46. The end of the frame support 41 is provided with a power unit 5, and the output end of the power unit 5 is provided with a rotating crank arm 42.
[0051] The power unit 5 includes a motor 51 and a motor mounting base 52. The motor mounting base 52 is provided at the end of the frame support 41; the motor 51 is provided on the side of the motor mounting base 52.
[0052] The output end of the motor 51 passes through the motor mounting base 52 and is connected to the rotating crank arm 42. The motor 51 is set as the power source to drive the rotating crank arm 42 to rotate.
[0053] The end of the rotating crank arm 42 is connected to the connecting rod 43, the end of the connecting rod 43 is hinged to the mounting plate 32, the end of the mounting plate 32 is provided with a bag-breaking knife 45, and both ends of the bag-breaking knife 45 are provided with support shafts 44.
[0054] The end of the support shaft 44 is provided with a slot 441, and one end of the bag-breaking knife 45 is inserted into the slot 441 accordingly; the slot 441 facilitates the installation and removal of the bag-breaking knife 45 and makes it convenient to maintain the bag-breaking knife 45.
[0055] Both ends of the frame support 41 are provided with tool bearing seat 46, and both ends of the support shaft 44 are respectively inserted into the tool bearing seat 46.
[0056] The process of using the bag-breaking machine in the above invention is as follows:
[0057] When materials need to be added to the hopper, all the required materials are first moved to the side of the hopper for stacking to facilitate subsequent use; the robot body 1 is started, and the robot body 1 drives the clamping mechanism 3 to the top of the material bag; all of the above are automatically controlled through the control panel.
[0058] Start the robot body 1. The robot body 1 drives the clamping mechanism 3 to move down as a whole until the gripper 34 moves to the top of the raw material bag.
[0059] Continue to start the robot body 1. As the robot body 1 moves the gripper 34 downward, the horizontal bar 312 first contacts the raw material bag. The horizontal bar 312 continues to move downward and contacts the surface of the raw material bag. The horizontal bar 312 flattens the surface of the raw material bag. The above operation can flatten and shape the raw material bag.
[0060] As the horizontal bar 312 moves downward, the vertical slide bar 311 moves upward along the mounting hole. When the vertical slide bar 311 moves upward, it squeezes the powerful compression spring 313. The vertical slide bar 311 continues to move upward until the gripping claw 34 contacts the raw material bag and stops.
[0061] The cylinder is activated, and the cylinder drives the rotating shaft 33 to rotate through the hinge mechanism. The rotating shaft 33 drives the gripping claw 34 to rotate outward after being inserted into the raw material bag. The gripping claw 34 tensions and grips the raw material bag. The opposing gripping claws 34 grip both ends of the raw material bag respectively, which not only keeps the raw material bag flat, but also grips the raw material bag in parallel, effectively preventing slippage.
[0062] Continue operating the robot body 1. The robot body 1 moves the raw material bag until it reaches the upper part of the cutter section 4.
[0063] Start motor 51, motor 51 drives rotating crank arm 42 to reciprocate. When rotating crank arm 42 is running, it drives connecting rod 43 to rotate. When connecting rod 43 moves, it drives mounting plate 32 to move. When mounting plate 32 moves, it drives bag breaking knife 45 to reciprocate. When bag breaking knife 45 reciprocates, it is stably supported by knife bearing seat assembly 46.
[0064] Continue operating robot body 1. Robot body 1 drives the raw material bag to continue moving downwards. The bag-breaking blade 45 contacts the middle end of the raw material bag and performs reciprocating cutting. The raw material bag continues to move downwards until the bag-breaking blade 45 completes the cutting of the entire raw material bag.
[0065] After cutting, in order to prevent material from being stored on the side of the cut raw material bag, the robot body 1 tilts left and right; by operating the robot body 1, the robot body 1 moves the raw material bag back to the initial position.
[0066] At this time, the rotating shaft 33 is operated, which drives the gripper 34 to the initial position. At this time, the elastic force generated by the powerful compression spring 313 drives the vertical slide bar 311 to move down to the initial position. Simultaneously, the downward movement of the vertical slide bar 311 drives the bag pressing rack 314 to slide the raw material bag off the gripper 34, and the raw material bag falls directly to the ground, thus completing the entire bag breaking operation. Example 2
[0067] like Figure 7 As shown, in order to improve the stability of the bag-breaking knife 45 when it moves, there are two bag-breaking knives 45, and the bag-breaking knives 45 are arranged in sequence.
[0068] The tool bearing housing assembly 46 includes an upper bearing 461 and a lower bearing 462, with the upper bearing 461 disposed at the upper end of the lower bearing 462;
[0069] Several support shafts 44 are provided, and each support shaft 44 is respectively configured to correspond one-to-one with the upper bearing 461 and the lower bearing 462; the lower bearing 462 and the upper bearing 461 are set to fix the two sides of the bag-breaking knife 45, thereby improving the stability of the bag-breaking knife 45 during operation. Example 3
[0070] like Figure 3-4 As shown, the present invention provides a bag breaking machine for batching, including a mounting plate 32, a positioning sleeve 315 is provided through the outer wall of the mounting plate 32, and the positioning sleeve 315 is correspondingly sleeved on the outer wall of the vertical slide rod 311.
[0071] The vertical slide bar 311 is guided by the positioning sleeve 315, which facilitates the vertical movement of the vertical slide bar 311. A limiting ring 316 is provided at the end of the vertical slide bar 311, and the limiting ring 316 and the vertical slide bar 311 are detachably connected. The limiting ring 316 is used to limit the end of the vertical slide bar 311 and prevent the vertical slide bar 311 from slipping out of the mounting plate 32.
[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A bag-breaking machine for ingredient dispensing, characterized in that: It includes a robot body, a placement platform, and a clamping mechanism, with the placement platform located at the end of the robot body; The clamping mechanism includes an elastic pressure bag part, a mounting plate, a rotating shaft, and a gripping claw. The mounting plate is provided on both opposite sides of the lower part of the placement platform. Two elastic pressure bag parts are provided, and the elastic pressure bag parts are respectively provided on two opposite sides of the mounting plate; The elastic pressure bag part includes a vertical slide bar, a horizontal bar, a high-strength compression spring, and a pressure bag rack. One end of the vertical slide bar slides through the rear end of the mounting plate to the lower part of the mounting plate. The horizontal bar is provided at the lower end of the vertical slide bar, and the pressure bag rack is provided on the outer wall of the horizontal bar. The outer wall of the vertical slide bar is fitted with the high-strength compression spring, and the high-strength compression spring is correspondingly disposed between the mounting plate and the horizontal bar; The rotating shaft is provided at the lower part of the front end of the mounting plate, and the gripping claw is provided on the outer wall of the rotating shaft, and the gripping claw is rotatable outward. The robot body has a puller section on its side, which includes a frame support, a rotating crank arm, a connecting rod, a support shaft, a bag-breaking cutter, and a cutter bearing seat assembly. The end of the frame support is equipped with a power unit, and the output end of the power unit is equipped with the rotating crank arm. The end of the rotating crank arm is connected to the connecting rod, the end of the connecting rod is hinged to the mounting plate, the end of the mounting plate is provided with the bag-breaking knife, and the two ends of the bag-breaking knife are provided with the support shaft; Both ends of the frame support are provided with the tool bearing seat assembly, and both ends of the support shaft are respectively inserted into the tool bearing seat assembly.
2. The bag-breaking machine for ingredient dispensing according to claim 1, characterized in that: A positioning sleeve is provided through the outer wall of the mounting plate, and the positioning sleeve is correspondingly fitted onto the outer wall of the vertical slide rod.
3. The bag-breaking machine for ingredient dispensing according to claim 1, characterized in that: The end of the vertical slide bar is provided with a limiting ring, and the limiting ring and the vertical slide bar are detachably connected.
4. The bag-breaking machine for ingredient dispensing according to claim 1, characterized in that: The mounting plate is provided with a fixed bearing seat at its lower end. There are two fixed bearing seats, and the two ends of the rotating shaft pass through the opposite fixed bearing seats respectively.
5. A bag-breaking machine for ingredient preparation according to claim 1, characterized in that: The end of the support shaft is provided with a slot, and one end of the bag-breaking knife is inserted into the slot.
6. The bag-breaking machine for batching according to claim 1, characterized in that: The power unit includes a motor and a motor mounting base. The motor mounting base is provided at the end of the frame support; the motor is provided on the side of the motor mounting base. The output end of the motor passes through the motor mounting base and is connected to the rotating crank arm.
7. A bag-breaking machine for ingredient dispensing according to claim 1, characterized in that: There are two bag-breaking knives, and the bag-breaking knives are arranged in sequence.
8. A bag-breaking machine for ingredient dispensing according to claim 1, characterized in that: The tool bearing housing assembly includes an upper bearing and a lower bearing, with the upper bearing disposed at the upper end of the lower bearing; The support shaft is provided in a plurality of manners, and each support shaft is respectively provided in a one-to-one correspondence with the upper bearing and the lower bearing.
9. A bag-breaking machine for batching ingredients according to claim 1, characterized in that: The gripping claws and the bag-pressing racks are provided in multiple quantities, and the gripping claws and the bag-pressing racks are arranged in a staggered manner in sequence.
Citation Information
Patent Citations
Gripper of bag breaking machine
CN119408820A
Holding and clamping type bag breaking and material shaking robot hand
CN218433626U