Bag breaking machine with anti-jamming structure

Abstract

The application discloses a bag breaking machine with anti-stuck structure, which comprises a rack assembly, a power assembly, a bag breaking system and a discharge hopper assembly. The rack assembly comprises an upper box body assembly and a lower box body assembly. The bag breaking system comprises a moving knife assembly and a fixed knife assembly. The moving knife assembly is installed on a main shaft assembly. The fixed knife assembly is fixed on the lower box body assembly. A gap adjusting mechanism is arranged between the moving knife assembly and the fixed knife assembly. The gap adjusting mechanism comprises an adjusting screw, an adjusting handle, an adjusting nut, a spring set and a connecting support. The adjusting screw is installed on the rack assembly through the connecting support. The adjusting handle is installed on the outer end of the adjusting screw. The adjusting nut is in threaded cooperation with the adjusting screw. The front end of the adjusting nut is abutted against the spring set. The end, away from the adjusting nut, of the spring set is connected with the fixed knife assembly. In general, the bag breaking machine has the advantages of stable operation, simple maintenance, high bag breaking effect, low damage and suitability for various bagged materials.

Description

Technical Field

[0001] This invention belongs to the field of solid waste treatment technology, specifically relating to a bag-breaking machine with an anti-jamming structure. Background Technology

[0002] Currently, bag breaking machines are widely used in solid waste treatment, recycling sorting, and raw material pretreatment. Their main function is to mechanically cut or tear the packaged bag to release the material inside and separate it. Existing traditional bag breaking machines usually include components such as a frame, power unit, main shaft cutter assembly, and fixed cutter assembly. The bag is broken by rotating the main shaft to drive the shearing action between the moving cutter assembly and the fixed cutter assembly. However, in actual applications, due to the large differences in bag material, thickness, and impurity content, bag breaking machines are prone to problems such as unstable shearing gap, interference between moving and fixed cutters, and sudden changes in main shaft torque during continuous operation, resulting in incomplete bag breaking or equipment jamming and shutdown.

[0003] Existing bag-breaking machines mostly rely on rigid bolt structures for fixing and adjusting the shearing gap. This method lacks elastic buffering capacity during equipment operation. When hard foreign objects are mixed in the bag, the impact load between the moving blade assembly and the fixed blade assembly cannot be effectively released, which can easily cause the blade to break or the main shaft to bend. In addition, although some bag-breaking machines are equipped with adjustment mechanisms, they are mostly single-sided adjustment structures with low adjustment accuracy and asynchronous gaps on both sides. After long-term use, problems such as uneven blade wear and uneven bag breaking will occur. Moreover, after long-term operation, the surface of the rotating main shaft of existing bag-breaking machines is prone to plastic film or fiber impurities getting entangled. The lack of an effective automatic cleaning structure affects the rotational balance of the rotating main shaft and the stability of the equipment, which cannot meet the needs of existing bag-breaking machines.

[0004] To address this issue, a bag-breaking machine with an anti-jamming structure is proposed, which solves the problems of existing machines lacking buffering capacity, blades being prone to breakage and damage, poor bag-breaking effect, inability to automatically clean impurities, and short service life. Summary of the Invention

[0005] In view of this, the present invention proposes a bag-breaking machine with an anti-jamming structure, which is applied to the field of solid waste treatment technology and solves the existing technical problems of lack of buffering capacity, easy breakage and damage of blades, poor bag-breaking effect, inability to automatically clean impurities and short service life.

[0006] To achieve the above-mentioned technical objectives, the specific technical solution adopted by the present invention is as follows: A bag-breaking machine with an anti-jamming structure includes a frame assembly, a power unit, a bag-breaking system, and a hopper assembly. The frame assembly is an integral support frame, including an upper housing assembly and a lower housing assembly. The power unit is installed on one side of the frame assembly and drives the bag-breaking system through a main shaft assembly located inside the frame assembly. The bag-breaking system includes a moving blade assembly and a fixed blade assembly. The moving blade assembly is installed on the main shaft assembly, and the fixed blade assembly is fixed to the lower housing assembly. A gap adjustment mechanism is provided between the moving blade assembly and the fixed blade assembly. The gap adjustment mechanism includes an adjusting screw, an adjusting handle, an adjusting nut, a spring assembly, and a connecting bracket. The adjusting screw is mounted on the frame assembly via a connecting bracket. The adjusting handle is mounted on the outer end of the adjusting screw. The adjusting nut is threadedly engaged with the adjusting screw. When the adjusting screw rotates, it drives the adjusting nut to move axially. The front end of the adjusting nut abuts against the spring assembly. The end of the spring assembly away from the adjusting nut is connected to the fixed blade assembly. The axial displacement of the adjusting nut causes the spring assembly to compress or release, thereby pushing the fixed blade assembly to produce displacement and change the gap between the moving and fixed blades. The bag breaking system also includes a limit protection structure, which is set on the frame assembly to limit the maximum stroke of the gap adjustment mechanism and prevent over-adjustment.

[0007] Furthermore, the gap adjustment mechanism is linked with the limit protection structure. The limit protection structure includes a limit chain and a limit stop. One end of the limit chain is fixed to the frame assembly, and the other end of the limit chain is connected to the front end of the adjusting screw. When the adjusting nut moves along the adjusting screw to the set position, the limit chain is tightened, restricting the adjusting screw from continuing to rotate and preventing excessive movement of the fixed tool assembly from causing interference between the moving and fixed tools.

[0008] Furthermore, the fixed blade assembly includes a front fixed blade and a rear fixed blade. The front fixed blade is installed on the front side of the moving blade assembly and completes the bag-breaking operation by cooperating with the moving blade assembly. The rear fixed blade is installed on the inner wall of the lower housing assembly behind the moving blade assembly. The material-facing side of the rear fixed blade is provided with a cleaning scraper. The cleaning scraper is positioned opposite to the outer circle of the rotating main shaft located inside the lower housing and can scrape off the wrapped material attached to the outer surface of the main shaft assembly when the main shaft assembly rotates. The moving blade assembly and the fixed blade assembly, in cooperation with the gap adjustment mechanism, enable the moving and fixed blades to maintain a controllable gap during the rotational shearing process, and achieve anti-jamming buffering through the elastic deformation of the spring assembly when subjected to impact.

[0009] Furthermore, the bag breaking system is located in the middle of the frame assembly, and the hopper assembly is located below the bag breaking system and is connected to the discharge port of the bag breaking system.

[0010] Furthermore, the spindle assembly is horizontally mounted on the central axis inside the lower housing assembly. The spindle assembly is connected to the output shaft of the power assembly via a coupling located inside the lower housing assembly. The coupling is mounted on the outside of the lower housing assembly and connected to the input end of the spindle assembly, thereby making the lower housing assembly a bearing cavity for mounting the spindle assembly and the fixed tool assembly.

[0011] Furthermore, the gap adjustment mechanism has a symmetrical arrangement, with two sets of adjustment screws symmetrically positioned on both sides of the frame assembly. A transverse connecting rod is provided between the outer ends of the two sets of adjustment screws, which drives and connects the two sets of adjustment screws. This ensures that when the adjustment screw on one side rotates, the other side rotates synchronously through the transverse connecting rod, forming a synchronous adjustment assembly. The spring assembly is a disc spring assembly structure, consisting of multiple disc springs stacked in opposite directions. This arrangement provides adjustable flexible support force during synchronous adjustment.

[0012] Furthermore, the limit protection structure is equipped with a buffer pad inside, and the fixed end of the limit chain is equipped with a screw adjustment component to adjust the effective length of the limit chain. The buffer pad is installed on the force-bearing surface of the limit block to absorb the impact energy generated when the adjusting screw reaches its limit stroke.

[0013] Furthermore, the cleaning blade is made of wear-resistant elastic material and is detachably fixed to the rear fixed blade by means of screw connection.

[0014] Furthermore, the rack assembly is equipped with a removable maintenance door and a safety guard. The safety guard is connected to the control circuit of the power unit and automatically cuts off the power supply to the power unit when the guard is opened or the maintenance door is opened.

[0015] Furthermore, the connecting bracket is fixedly installed on the inner side wall of the lower housing assembly. The connecting bracket is located on the outer side of the fixed blade assembly. The connecting bracket cooperates with the support hole opened in the middle of the adjusting screw to provide rotational support for the adjusting screw and bear the reaction force generated by the spring assembly.

[0016] By adopting the above technical solution, the present invention can also bring the following beneficial effects: 1. This invention discloses a bag-breaking machine with an anti-jamming structure. By setting a gap adjustment mechanism in the bag-breaking system, flexible gap adjustment between the moving blade assembly and the fixed blade assembly is achieved. The rotation of the adjusting screw drives the adjusting nut to move axially, and the compression or release of the spring group generates a controllable preload, so that the fixed blade assembly is in a deformable support state during operation. It can absorb impact loads when there are hard impurities or foreign objects in the bag, and prevent rigid collisions between the moving blade assembly and the fixed blade assembly, thereby maintaining the stability of the shearing gap and the service life of the blades. The gap adjustment mechanism is symmetrically arranged and the two sets of adjusting screws are synchronously adjusted through a transverse connecting rod, ensuring that the gap between the moving blade assembly and the fixed blade assembly is consistent on both sides, avoiding uneven wear caused by uneven force, improving the balance and continuity of the bag-breaking machine during the shearing process, and has the advantages of anti-jamming, anti-uneven wear, and stable shearing.

[0017] 2. This invention mentions a bag-breaking machine with an anti-jamming structure. By setting a limit protection structure and a gap adjustment mechanism to form a linkage, when the adjusting nut moves along the adjusting screw to the set position, the limit chain is tightened to limit the rotation stroke of the adjusting screw, preventing excessive displacement of the fixed blade assembly from causing interference between the moving blade assembly and the fixed blade assembly. The buffer pad on the limit block absorbs the impact energy when the adjusting screw reaches the limit position, avoiding damage to structural components and reducing fatigue wear of threaded connection parts. The setting of the screw adjustment part makes it easy to adjust the effective length of the chain to adapt to different gap adjustment ranges, making the gap adjustment of the bag-breaking machine safer and more reliable, with the advantages of accurate limiting and smooth buffering.

[0018] 3. This invention mentions a bag-breaking machine with an anti-jamming structure. By setting a cleaning scraper structure at the rear of the bag-breaking system, the cleaning scraper is installed on the material-facing side of the fixed blade assembly and keeps in contact with the outer circle of the main shaft assembly. During the rotation of the rotating main shaft in the main shaft assembly, the cleaning scraper can clean the plastic film, fibers and impurities on the outer circle surface of the rotating main shaft in real time, preventing foreign objects from adhering to the outer circle of the rotating main shaft and causing rotational imbalance or increased running resistance, thus ensuring the continuous and stable operation of the bag-breaking machine. The frame assembly is equipped with a safety guard and an interlocking system for the control circuit. When the safety guard is opened or the maintenance door is opened, the control circuit can automatically cut off the power supply to the power component, ensuring the operational safety during maintenance. It achieves the dual functions of cleaning and protection while efficiently breaking bags, and has the advantages of automatic cleaning, stable operation and safety and reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Fig. 1 This is a schematic diagram of a bag-breaking machine with an anti-jamming structure mentioned in this invention; Fig. 2 This is a schematic diagram of the connection structure between the roller assembly and the reinforcing frame in this embodiment; Fig. 3 This is a schematic diagram of the connection structure between the roller assembly and the reinforcing frame in this embodiment; Fig. 4 This is a schematic diagram of the connection structure between the roller assembly and the reinforcing frame in this embodiment; In the diagram: 1. Frame assembly; 2. Bag breaking system; 3. Gap adjustment mechanism; 4. Power unit; 5. Main shaft assembly; 6. Moving blade assembly; 7. Fixed blade assembly; 8. Front fixed blade; 9. Rear fixed blade; 10. Adjusting screw; 11. Adjusting handle; 12. Adjusting nut; 13. Spring assembly; 14. Connecting bracket; 15. Limit chain; 16. Limit stop; 17. Hopper assembly; 18. Upper box assembly; 19. Lower box assembly; 20. Feed chute. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details. Example 1

[0026] like Figs. 1 to 4 As shown, the present invention provides a bag-breaking machine with an anti-jamming structure, including a frame assembly 1, a power unit 4, a bag-breaking system 2, and a hopper assembly 17. The frame assembly 1 is an integral support frame, consisting of an upper housing assembly 18 and a lower housing assembly 19. The upper housing assembly 18 is used to install the feed inlet, safety guard, and maintenance door. A feed chute 20 is provided at the front end of the upper housing assembly 18 to guide the material to slide into the bag-breaking system 2 in an inclined direction, avoiding material accumulation or jamming. The lower housing assembly 19 forms an internal bearing cavity for installing the main shaft assembly 5, the fixed blade assembly 7, and the gap adjustment mechanism 3. The power unit 4 is installed on one side of the frame assembly 1. The output shaft of the power unit 4 is connected to the input end of the main shaft assembly 5 through a coupling installed on the outside of the lower housing assembly 19. The main shaft assembly 5 is horizontally installed on the central axis inside the lower housing assembly 19, and the power is transmitted through the coupling to rotate the main shaft to drive the bag-breaking system 2.

[0027] The bag-breaking system 2 consists of a moving blade assembly 6 and a fixed blade assembly 7. The moving blade assembly 6 is mounted on the main shaft assembly 5 and performs shearing motion as the rotating main shaft inside the main shaft assembly 5 rotates. The fixed blade assembly 7 is fixedly mounted on the inner wall of the lower housing assembly 19 and is arranged opposite to the moving blade assembly 6 to form a shearing gap for cutting the bag. The fixed blade assembly 7 includes a front fixed blade 8 and a rear fixed blade 9. The front fixed blade 8 is located in front of the moving blade assembly 6 and works in conjunction with the moving blade assembly 6 to continuously cut and break the incoming bag. The rear fixed blade 9 is installed on the inner wall of the lower box assembly 19 behind the moving blade assembly 6. A cleaning scraper is provided on the receiving side of the rear fixed blade 9. The cleaning scraper is made of wear-resistant elastic material and can be detachably fixed to the rear fixed blade 9 by means of screw connection. The cleaning scraper is set opposite to the outer circle of the rotating main shaft. During the rotation of the main shaft assembly 5, the cleaning scraper continuously contacts the outer circle of the rotating main shaft, which can effectively clean the plastic film, impurities and tangled fibers attached to the outer surface of the rotating main shaft, prevent the rotational resistance of the rotating main shaft from increasing or the cutting from being unstable due to the attachments, thereby maintaining the smooth operation of the rotating main shaft and the continuity of bag breaking.

[0028] A gap adjustment mechanism 3 is provided between the moving blade assembly 6 and the fixed blade assembly 7 to adjust the gap between them under different working conditions, thereby achieving precise control of the shearing gap. The gap adjustment mechanism includes an adjusting screw 10, an adjusting handle 11, an adjusting nut 12, a spring assembly 13, and a connecting bracket 14. The adjusting screw 10 is mounted on the frame assembly 1 via the connecting bracket 14. The connecting bracket 14 is fixed to the inner side wall of the lower housing assembly 19. The connecting bracket 14 engages with the support hole in the middle of the adjusting screw 10 to provide rotational support for the adjusting screw 10 and withstand the reaction force generated by the spring assembly 13. The adjusting handle 11 is installed on the outer end of the adjusting screw 10 to drive its rotation. The adjusting nut 12 is threadedly engaged with the adjusting screw 10. When the screw 10 rotates, it drives the adjusting nut 12 to move axially. The front end of the adjusting nut 12 abuts against the spring assembly 13. The spring assembly 13 is a disc spring assembly structure, composed of multiple disc springs stacked in opposite directions. The far end of the spring assembly 13 is connected to the fixed blade assembly 7. By rotating the adjusting handle 11, the adjusting nut 12 moves along the adjusting screw 10, compressing or releasing the spring assembly 13, thereby driving the fixed blade assembly 7 to move slightly axially, realizing the adjustment of the gap between the moving blade assembly 6 and the fixed blade assembly 7. During the operation, the spring assembly 13 applies a flexible preload to the fixed blade assembly 7, so that the moving blade assembly 6 and the fixed blade assembly 7 always maintain a controllable gap during the rotational shearing process. When encountering instantaneous impact or foreign objects during the bag breaking process, the spring assembly 13 undergoes elastic deformation to absorb the impact load, realizing the automatic buffering and anti-jamming function.

[0029] The gap adjustment mechanism 3 is symmetrically arranged in the left-right direction. Two sets of adjustment screws 10 are linked together via a transverse connecting rod. Both ends of the transverse connecting rod are connected to the linkage arms at the outer ends of the adjustment screws 10, and fixed by pins to form a synchronous adjustment structure. The structure of the linkage arms and the pin connection both adopt existing structures. When any one adjustment screw 10 is rotated, the other adjustment screw 10 rotates synchronously under the drive of the transverse connecting rod, ensuring that the gap on both sides of the fixed blade assembly 7 remains consistent, preventing uneven wear, and improving the accuracy of adjustment and the reliability of use. To prevent over-adjustment of the gap... If excessive adjustment occurs during the process, causing blade interference, a limit protection structure is set up. The limit protection structure is linked with the gap adjustment mechanism 3. The limit protection structure includes a limit chain 15, a limit stop 16, a screw adjustment component and a buffer pad. One end of the limit chain 15 is fixed to the frame assembly 1, and the other end is connected to the front end of the adjustment screw 10. When the adjustment nut 12 moves along the adjustment screw 10 to the set position, the limit chain 15 is tightened, limiting the continued rotation of the adjustment screw 10 and preventing the fixed blade assembly 7 from having excessive displacement, which would cause interference between the moving blade assembly 6 and the fixed blade assembly 7. The screw adjustment piece at the fixed end of the limit chain 15 is used to adjust the effective length of the chain to match the needs of different adjustment ranges. The limit stop 16 is installed on the outer wall of the frame assembly 1, and the force-bearing surface is adhered with a buffer pad. The buffer pad is used to absorb the impact energy when the adjusting screw 10 reaches the limit stroke, thus extending the service life of the equipment. The frame assembly 1 is equipped with a detachable maintenance door and a safety guard. The safety guard is connected to the control circuit of the power component 4 to form an electrical interlock system. When the guard is opened or the maintenance door is opened, the control circuit automatically cuts off the power supply to the power component 4 to prevent operators from accidentally touching the equipment and causing mechanical damage or personal injury. The specific principle and structural composition of the control circuit also adopt existing technology.

[0030] The hopper assembly 17 of this invention is installed below the bag-breaking system 2 and communicates with the discharge port of the bag-breaking system 2 to smoothly discharge the material after bag breaking. During operation, the power assembly 4 drives the rotating spindle inside the main shaft assembly 5 to rotate, and the moving blade assembly 6 rotates at high speed with the rotating spindle, forming a shearing engagement with the fixed blade assembly 7 to cut the bag and achieve continuous bag breaking. If the bag thickness is uneven or foreign objects enter the shearing zone during the bag breaking process, the spring assembly 13 will generate instantaneous deformation to absorb the impact load, preventing the moving blade assembly 6 and the fixed blade assembly 7 from rigidly colliding, thus achieving anti-jamming protection. When it is necessary to adjust the moving blade assembly 6 and the fixed blade assembly 7, the spring assembly 13 will generate instantaneous deformation to absorb the impact load, preventing the moving blade assembly 6 and the fixed blade assembly 7 from rigidly colliding, thus achieving anti-jamming protection. When adjusting the shearing gap between the fixed blade assemblies 7, the operator rotates the adjusting handle 11, which drives the adjusting screw 10 to move the adjusting nut 12 axially, thereby compressing or releasing the spring assembly 13 to achieve gap adjustment. When the adjusting screw 10 rotates to the limit position, the limit chain 15 is tightened, limiting the adjustment screw 10 from continuing to rotate. The buffer pad absorbs residual kinetic energy to avoid damage to the structural components. During the continuous rotation of the main shaft assembly 5, the cleaning scraper on the material-facing side of the rear fixed blade 9 remains in contact with the outer circle of the rotating main shaft, which can effectively clean the attached materials, ensure the smooth rotation of the rotating main shaft, and improve the bag-breaking efficiency and equipment reliability.

[0031] In summary, this invention features a compact structure, convenient adjustment, and safe and reliable operation. The flexible pre-tensioning of the disc spring assembly enables adaptive adjustment of the gap between the moving and fixed blades. The linkage between the limit chain 15 and the adjusting screw 10 prevents over-adjustment. The automatic cleaning action of the cleaning scraper avoids entanglement and blockage. It has the advantages of stable operation, simple maintenance, high bag-breaking effect, low damage resistance, and applicability to various bagged materials.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A bag-breaking machine with an anti-jamming structure, characterized in that: The machine includes a frame assembly, a power unit, a bag-breaking system, and a hopper assembly. The frame assembly is an integral support frame, including an upper housing assembly and a lower housing assembly. The power unit is mounted on one side of the frame assembly and drives the bag-breaking system through a main shaft assembly located inside the frame assembly. The bag-breaking system includes a moving blade assembly and a fixed blade assembly. The moving blade assembly is mounted on the main shaft assembly, and the fixed blade assembly is fixed to the lower housing assembly. A gap adjustment mechanism is provided between the moving blade assembly and the fixed blade assembly. The gap adjustment mechanism includes an adjusting screw, an adjusting handle, an adjusting nut, a spring assembly, and a connecting bracket. The adjusting screw... The connecting bracket is mounted on the frame assembly. The adjusting handle is mounted on the outer end of the adjusting screw. The adjusting nut is threadedly engaged with the adjusting screw. When the adjusting screw rotates, it drives the adjusting nut to move axially. The front end of the adjusting nut abuts against the spring assembly. The end of the spring assembly away from the adjusting nut is connected to the fixed blade assembly. The axial displacement of the adjusting nut causes the spring assembly to compress or release, thereby pushing the fixed blade assembly to produce displacement and changing the gap between the moving and fixed blades. The bag-breaking system also includes a limit protection structure. The limit protection structure is set on the frame assembly to limit the maximum stroke of the gap adjustment mechanism and prevent over-adjustment.

2. The bag-breaking machine with an anti-jamming structure according to claim 1, characterized in that: The gap adjustment mechanism is linked with the limit protection structure. The limit protection structure includes a limit chain and a limit stop. One end of the limit chain is fixed to the frame assembly, and the other end of the limit chain is connected to the front end of the adjusting screw. When the adjusting nut moves along the adjusting screw to the set position, the limit chain is tightened, restricting the adjusting screw from continuing to rotate and preventing excessive movement of the fixed tool assembly from causing interference between the moving and fixed tools.

3. A bag-breaking machine with an anti-jamming structure according to claim 2, characterized in that: The fixed blade assembly includes a front fixed blade and a rear fixed blade. The front fixed blade is installed on the front side of the moving blade assembly and works with the moving blade assembly to complete the bag breaking operation. The rear fixed blade is installed on the inner wall of the lower box assembly behind the moving blade assembly. The material-facing side of the rear fixed blade is provided with a cleaning scraper. The cleaning scraper is positioned opposite to the outer circle of the rotating main shaft located inside the lower box assembly. It can scrape off the wrapped material attached to the outer surface of the main shaft assembly when the main shaft assembly rotates. The moving blade assembly and the fixed blade assembly, in cooperation with the gap adjustment mechanism, enable the moving and fixed blades to maintain a controllable gap during the rotational shearing process, and achieve anti-jamming buffering through the elastic deformation of the spring assembly when subjected to impact.

4. A bag-breaking machine with an anti-jamming structure according to claim 3, characterized in that: The bag breaking system is located in the middle of the frame assembly, and the hopper assembly is located below the bag breaking system and is connected to the discharge port of the bag breaking system.

5. A bag-breaking machine with an anti-jamming structure according to claim 4, characterized in that: The spindle assembly is horizontally mounted on the central axis inside the lower housing assembly. The spindle assembly is connected to the output shaft of the power assembly via a coupling located inside the lower housing assembly. The coupling is mounted on the outside of the lower housing assembly and connected to the input end of the spindle assembly, thereby making the lower housing assembly a bearing cavity for mounting the spindle assembly and the fixed tool assembly.

6. A bag-breaking machine with an anti-jamming structure according to claim 5, characterized in that: The gap adjustment mechanism has a symmetrical arrangement. There are two sets of adjustment screws, which are symmetrically arranged on both sides of the frame assembly. A transverse connecting rod is provided between the outer ends of the two sets of adjustment screws. The two sets of adjustment screws are connected by transmission through the transverse connecting rod, so as to ensure that when the adjustment screw on one side rotates, the other side rotates synchronously through the transverse connecting rod, forming a synchronous adjustment assembly. The spring group is a disc spring group structure, which includes multiple disc springs. The spring group is formed by stacking the disc springs in opposite directions to provide adjustable flexible support force during synchronous adjustment.

7. A bag-breaking machine with an anti-jamming structure according to claim 6, characterized in that: The limiting protection structure is also equipped with a buffer pad inside, and the fixed end of the limiting chain is equipped with a screw adjustment component for adjusting the effective length of the limiting chain. The buffer pad is installed on the force-bearing surface of the limiting block to absorb the impact energy generated when the adjusting screw reaches its limit stroke.

8. A bag-breaking machine with an anti-jamming structure according to claim 7, characterized in that: The cleaning scraper is made of wear-resistant elastic material and is detachably fixed to the rear fixed blade by means of screw connection.

9. A bag-breaking machine with an anti-jamming structure according to claim 8, characterized in that: The frame assembly is equipped with a detachable maintenance door and a safety guard. The safety guard is connected to the control circuit of the power component and automatically cuts off the power supply to the power component when the guard is opened or the maintenance door is opened.

10. A bag-breaking machine with an anti-jamming structure according to claim 9, characterized in that: The connecting bracket is fixedly installed on the inner side wall of the lower housing assembly. The connecting bracket is located on the outer side of the fixed blade assembly. The connecting bracket cooperates with the support hole opened in the middle of the adjusting screw to provide rotational support for the adjusting screw and bear the reaction force generated by the spring assembly.

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