Milk bar packaging bag unpacking and separating device

Abstract

The application discloses a milk strip packaging bag unpacking and separating device, which comprises a rack, wherein the rack is provided with a conveying belt, an adjuster, a clamping conveying assembly, an unpacking assembly and a vibrating assembly; the adjuster is arranged before the bagged materials enter the clamping conveying assembly, and is used for adjusting the rolling of the clamping parts at both ends of the packaging bag; the adjuster is arranged to dynamically adjust the positions of both ends of the packaging bag on the conveying belt; the clamping conveying assembly stably clamps the end part of the packaging bag and forms a material passing space; the unpacking assembly accurately cuts the single end part; the extrusion and separation assembly applies an inclined extrusion force to efficiently separate the materials; and the vibrating assembly synchronously applies vibration to avoid the adhesion of the materials and the packaging bag, so that the full-automatic unpacking and separating process is realized; the milk strip packaging bag can be automatically unpacked and separated; the labor intensity is obviously reduced; the occupational health risk of the operator is avoided; the production efficiency is improved; and the material integrity and the quality consistency are ensured.

Description

Technical Field

[0001] This invention relates to the field of milk stick unpacking, and more specifically to a milk stick packaging bag unpacking and separation device. Background Technology

[0002] During the production of dairy milk sticks, fluctuations in sealing processes or defects in appearance often result in a large number of substandard packaged products during peak production seasons. These products require the separation of the internal milk stick material from the outer packaging bag for recycling. Currently, the unpacking operation relies entirely on manual labor. Workers must use scissors to cut open each bag one by one, a process that is extremely labor-intensive. Prolonged repetitive actions can easily lead to occupational health risks such as hand muscle strain, joint damage, and even cuts. Furthermore, manual unpacking is slow and inconsistent, failing to meet the continuous and efficient operation requirements of automated production lines, causing production interruptions and creating efficiency bottlenecks. In addition, insufficient precision in manual operation can easily cause material damage, packaging residue, or cross-contamination, affecting the consistency of recycled material quality and further restricting the overall efficiency and resource utilization of the production line. Summary of the Invention

[0003] This application provides a device for unpacking and separating milk stick packaging bags, the technical solution of which is as follows: Includes a frame, which is equipped with a conveyor belt, adjuster, clamping conveyor assembly, unpacking assembly and vibration assembly; The adjuster includes an adjusting roller at the upper end of the conveyor belt, which presses down on the clamping parts at both ends of the packaging bag to make adjustments. The clamping and conveying assembly includes a first clamping member and a second clamping member that are disposed opposite to each other on both sides inside the frame and clamp the ends of the packaging bag for conveying. The first clamping member and the second clamping member form a passage space between the rear ends of the conveyor belt for material to pass through. The unpacking assembly includes a cutting motor fixed to the outside of the rear frame of the adjuster. The cutting motor drives the cutting blade to cut and open one end of the packaging bag. The extrusion release assembly includes an extruder arranged at an angle in the space passing through the rear end of the conveyor belt. The extruder includes two extrusion rods arranged vertically with open front ends and fixed inside the frame. The two extrusion rods apply extrusion force to the cut packaging bag to release the material from the packaging bag. The vibration assembly includes a vibrating rod located on the side of the extrusion bar, which vibrates along the packaging bag and material outside the extrusion assembly to prevent adhesion.

[0004] Furthermore, this application also proposes that the first clamping member and the second clamping member each include an upper clamping belt and a lower clamping belt arranged opposite each other. The upper clamping belt is installed in the corresponding slots on the side of the drive roller and the transmission roller, and the lower clamping belt is supported in the slots on both sides of the support wheels at the front and rear ends of the lower pressure roller and the conveyor belt.

[0005] Furthermore, this application also proposes that the inner side of the adjusting roller of the adjuster is provided with a through groove adapted to the shape of the material, and the through groove is connected to the drive roller through the compaction belt.

[0006] Furthermore, this application also proposes that the drive assembly includes a drive motor mounted on the outside of the frame and driving the drive roller to rotate. The side of the drive roller drives the lower pressure belt and the conveyor belt to drive synchronously through gear transmission, while the clamping conveyor assembly and the adjuster are synchronously linked.

[0007] Furthermore, this application also proposes that the cutting motor is mounted on one side of the frame, and the cutting blade extends downward into the gap between the lower clamping belt and the conveyor belt.

[0008] Furthermore, this application also proposes that a release gap is provided between the two extrusion rods of the extrusion release assembly, passing through the clamping side of the packaging bag, and the two extrusion rods are inclined along the conveying direction of the packaging bag.

[0009] Furthermore, this application also proposes that the lower front end of the two extrusion rods is provided with a guide rod on the opposite side of the unpacking assembly. The guide rod is fixed to the lower end of the extrusion rod and tilted downward to lift and guide the packaging bag into the release gap.

[0010] Furthermore, this application also proposes that the anti-detachment component includes a clamping box and a base plate that match the length of the extrusion detachment component. The base plate is located at the bottom of the upward lower clamping belt and is fixed to the inside of the frame. The clamping box is located at the top of the downward upper clamping belt. A counterweight is provided inside the clamping box. The clamping box is movably connected to the limiting rod inside the frame through the upper strip hole.

[0011] Furthermore, this application also proposes that the feeding assembly includes a disc feeder, which sorts and conveys the packaging bags onto the conveyor belt via a narrow strip conveyor installed on itself. The conveyor belt is provided with an inclined triangular baffle on its side, which receives the packaging bags delivered by the narrow strip conveyor and guides them to the middle of the conveyor belt.

[0012] Furthermore, this application also proposes that one end of the vibration rod of the vibration assembly is hinged to the frame, and the other end of the vibration rod is movably set with the inner groove of the cam, and the cam is driven by a swing motor installed on the outside of the frame.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention dynamically adjusts the positions of both ends of the packaging bag on the conveyor belt by setting an adjuster; the clamping and conveying component stably clamps the ends of the packaging bag and forms a material passage space; the unpacking component precisely cuts one end; the squeezing and detaching component applies inclined squeezing force to promote efficient material detachment; and the vibration component applies vibration synchronously to prevent the material from sticking to the packaging bag, thereby realizing a fully automatic unpacking and separation process. It has the ability to automatically unpack and separate milk strip packaging bags, significantly reducing manual labor intensity, avoiding occupational health risks for operators, improving production efficiency, and ensuring material integrity and quality consistency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the present invention from another perspective; Figure 3 yes Figure 2 Enlarged view of a partial structural diagram; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 4 Enlarged view of the local structure marked A; Figure 6 yes Figure 4 Enlarged view of the local structure marked B; Figure 7 This is a schematic diagram of the structure of the drive roller, pressure roller, transmission roller, and conveyor belt support roller.

[0015] In the diagram: 1. Frame; 2. Conveyor belt; 3. Adjuster; 31. Adjusting roller; 32. Through groove; 33. Compactor belt; 4. Clamping and conveying assembly; 41. First clamping component; 42. Second clamping component; 43. Upper clamping belt; 44. Lower clamping belt; 45. Drive roller; 46. Lower pressure roller; 47. Transmission roller; 48. Drive motor; 5. Unpacking assembly; 51. Cutting motor; 52. Cutting blade; 6. Guide rod; 7. Extrusion and release assembly; 71. Extrusion rod; 72. Release gap; 8. Vibration assembly; 81. Vibration rod; 82. Cam; 83. Slot; 84. Swing motor; 9. Anti-detachment assembly; 91. Pressing box; 92. Counterweight; 93. Limiting rod; 94. Base plate; 10. Disc feeder; 11. Narrow strip conveyor; 12. Triangular baffle plate. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: This application addresses the issue that in traditional dairy product packaging production, the unpacking of defective products relies on manual labor. This method is labor-intensive, poses safety hazards such as hand injuries or cuts, and is inefficient, making it difficult to match the pace of automated production lines. Furthermore, it leads to inconvenience in the separation and recycling process of materials from packaging bags.

[0017] like Figure 1 As shown, this application proposes a milk bar packaging bag unpacking and separation device, which uses a frame 1 as an overall support and sequentially installs a conveyor belt 2, an adjuster 3, a clamping conveyor assembly 4, an unpacking assembly 5, a squeezing and separating assembly 7, and a vibration assembly 8. The adjuster 3 includes an adjusting roller 31 located at the upper end of the tail of the conveyor belt 2. The adjusting roller 31 presses and adjusts the clamping parts at both ends of the packaging bag. The clamping and conveying assembly 4 includes a first clamping member 41 and a second clamping member 42, which are arranged opposite to each other inside the frame 1 and clamp the ends of the packaging bag for conveying. The first clamping member 41 and the second clamping member 42 form a passage space for material to pass through between the rear ends of the conveyor belt 2. The unpacking assembly 5 includes a cutting motor 51 fixed to the outside of the frame 1 at the rear end of the adjuster 3. The cutting motor 51 drives the cutting blade 52 to cut and open one end of the packaging bag. The extrusion and release assembly 7 includes an extrusion member arranged at an angle in the passage space at the rear end of the conveyor belt 2. The extrusion member includes two extrusion rods 71 ​​arranged vertically with open front ends and fixed to the inside of the frame 1. The two extrusion rods 71 ​​apply extrusion force to the cut packaging bag so that the material is released from the packaging bag. The vibration assembly 8 includes a vibration rod 81 located on the side of the extrusion rod 71. The vibration rod 81 applies vibration to the packaging bag and material outside the extrusion assembly 7 to prevent adhesion.

[0018] The frame 1 serves as the supporting structure of the device, used for installing and fixing various functional components. The conveyor belt 2, adjuster 3, clamping conveyor assembly 4, unpacking assembly 5, extrusion and release assembly 7, and vibration assembly 8 can be fixed to the main structure of the frame 1. Adjuster 3 is installed before the bagged material enters the clamping and conveying assembly 4 to adjust the clamping parts at both ends of the packaging bag by crushing them; to ensure that it can stably enter the pressure belt between the clamping and conveying assembly 4. Adjuster 3 is a through groove with a preset shape, which prevents the material inside from being squeezed and deformed when it passes through the through groove; The clamping and conveying assembly 4 includes a first clamping member 41 and a second clamping member 42, which are disposed opposite to each other inside the frame 1 and clamp the ends of the packaging bag for conveying. The clamping and conveying assembly 4 may be composed of two clamping belt assemblies disposed opposite to each other. The ends of the packaging bag are clamped and conveyed by these two clamping belts through compression. The first clamping member 41 and the second clamping member 42 form a passage space between the rear ends of the conveyor belt 2 to allow the material to pass through, ensuring that the material can be discharged after unpacking. The unpacking component 5 is used to cut open one side of the packaging bag. When the packaging bag is conveyed through, its one side is cut open by the blade to form an opening and achieve unpacking. The extrusion release assembly 7 includes inclined extruders configured to apply pressure to the cut packaging bag to expel material from the bag. The extrusion release assembly 7 uses two inclined extrusion rods to force the internal material out through extrusion. The milk stick packaging bag unpacking and separation device in this embodiment replaces manual unpacking operations with an automated process, reducing the labor intensity of operators and avoiding safety hazards such as hand injuries or cuts. Simultaneously, the device achieves material positioning, stable conveying, efficient cutting operations, material compression and separation, and anti-sticking treatment, improving the efficiency of the unpacking operation, enabling it to match the rhythm of the automated production line, and enhancing the recycling efficiency of defective materials.

[0019] like Figure 1 , 2 As shown, this application further proposes that the first clamping member 41 and the second clamping member 42 each include an upper clamping band 43 and a lower clamping band 44 arranged opposite to each other. The upper clamping band 43 is installed in the corresponding slots on the sides of the drive roller 45 and the transmission roller 47, and the lower clamping band 44 is supported in the slots on both sides of the lower pressure roller 46 and the support wheels at the front and rear ends of the conveyor belt 2.

[0020] The clamping structure of the upper clamping band 43 and the lower clamping band 44 provides a more stable physical constraint on the ends of the packaging bag. Specifically, the upper clamping band 43 is installed in the slots on the sides of the drive roller 45 and the transmission roller 47, ensuring that the upper clamping band 43 maintains a constant running trajectory during conveying, effectively preventing clamping failure caused by belt deviation. At the same time, the lower clamping band 44 is supported in the slots on both sides of the lower pressure roller 46 and the front and rear end support wheels of the conveyor belt 2. Utilizing the limiting effect of the slots, the lower clamping band 44 can form a precise alignment and clamping with the upper clamping band 43. This cooperation of the upper and lower clamping bands not only provides uniform clamping pressure, ensuring that the packaging bag is always in a controlled state during conveying, but also effectively solves the problem of packaging bags falling off due to insufficient friction or positional deviation during high-speed conveying. This provides a reliable conveying foundation for the subsequent precise cutting of the unpacking component 5 and the smooth operation of the extrusion and release component 7. Furthermore, the upper clamping belt 43, the lower clamping belt 44, and the corresponding rollers are connected by toothed belts (e.g., Figure 7 As shown in the figure, synchronous transmission is ensured, which further improves the stability and accuracy of the conveying.

[0021] like Figure 1As shown, this application further proposes that the adjusting roller 31 of the adjuster 3 is provided with a through groove 32 that is adapted to the shape of the material, and the through groove 32 is connected to the transmission roller 47 through the compaction belt 33.

[0022] The adjusting roller 31 is a rotatable component that works in conjunction with the conveyor belt 2 to perform initial positioning and attitude adjustment at both ends of the packaging bag. The adjusting roller 31 is located at the upper end of the tail of the conveyor belt 2, a critical transition area where the bagged material is about to leave the conveyor belt 2 and enter the subsequent clamping and conveying assembly 4, ensuring that the adjustment function is effectively implemented before the material enters the next process. The adjusting roller 31 is rotatably supported on the inner side of the frame 1, and its lower edge maintains an appropriate gap or slight contact with the surface of the conveyor belt 2 to accommodate bagged materials of different thicknesses.

[0023] The adjusting roller 31, with its inner side conforming to the material's shape, ensures that the material is not squeezed or deformed during transport, effectively preventing subsequent clamping failures caused by material swaying or tilting. Simultaneously, the compaction belt 33 connects the adjusting roller 32 to the drive roller 47, ensuring synchronized operation of the adjusting roller 31 and the conveying system. The tension of the compaction belt 33 also moderately compacts the material, further stabilizing its distribution within the packaging bag. This structural design organically combines material posture adjustment with the conveying power system, ensuring the material is in the optimal geometric position before entering the clamping and conveying assembly 4. This provides a reliable material transport foundation for the subsequent stable gripping of the packaging bag's end by the clamping and conveying assembly 4, significantly improving the accuracy and continuity of unpacking.

[0024] like Figure 2 As shown, this application further proposes a drive assembly, which includes a drive motor 48 mounted on the outside of the frame 1 and driving the drive roller 45 to rotate. The side of the drive roller 45 drives the lower pressing belt 44 and the conveyor belt 2 to drive synchronously through gear transmission, while the clamping conveyor assembly 4 and the adjuster 3 are synchronously linked.

[0025] The drive motor 48 drives the drive roller 45, and then through gear transmission, achieves synchronous transmission between the lower pressing belt 44 and the conveyor belt 2, as well as synchronous linkage between the clamping conveyor assembly 4 and the adjuster 3. This effectively solves the problems of asynchronous action and low transmission efficiency that may occur when each actuator operates independently. Specifically, the drive motor 48, as a unified power source, ensures that the lower pressing belt 44 and the conveyor belt 2 run at a precise and consistent linear speed through the drive roller 45 and gear transmission, thereby avoiding squeezing, pulling, or positional deviation of bagged materials during the conveying process due to speed mismatch. At the same time, the synchronous linkage between the clamping conveyor assembly 4 and the adjuster 3 ensures that the posture adjustment of the material before entering the unpacking station is highly coordinated with the subsequent clamping and conveying actions in time, eliminating material jamming or inaccurate positioning caused by timing deviations.

[0026] like Figure 1 , 5 As shown in Figures 6 and 7, this application further proposes that the cutting motor 51 is installed on one side of the frame 1, and the cutting blade 52 extends downward into the gap between the lower clamping belt 44 and the conveyor belt 2.

[0027] The combination of the cutting motor 51 and the cutting blade 52 enables automated and precise cutting of one end of the milk carton packaging bag, providing a prerequisite for the smooth separation of subsequent materials. The design of the cutting blade 52 extending downwards into the gap between the lower clamping belt 44 and the conveyor belt 2 is crucial. This position is on the path of the packaging bag being clamped and conveyed. By placing the blade in this gap, the cutting action is ensured to precisely target the edge of the packaging bag, avoiding accidental damage to the main body of the bag or the internal materials. This layout utilizes the physical space formed by the clamping and conveying assembly 4, achieving a high degree of spatial integration between the cutting process and the material conveying process. This not only simplifies the overall structure of the device but also ensures the continuity and synchronization of the unpacking action, effectively solving the problems of low efficiency and easy damage to materials caused by manual unpacking, and achieving efficient separation of the packaging bag and the material.

[0028] like Figure 2 , 3 As shown, this application further proposes that a release gap 72 passing through the clamping side of the packaging bag is provided between the two extrusion rods 71 ​​of the extrusion release assembly 7, and the two extrusion rods 71 ​​are inclined along the conveying direction of the packaging bag.

[0029] The extrusion bars 71 are components used to apply extrusion force to the packaging bag. Their "vertical arrangement" means that two extrusion bars 71 are positioned above and below the packaging bag, respectively, forming a clamping and guiding structure for the bag. This arrangement ensures that the packaging bag can be stably introduced and positioned within the extrusion area, providing a stable foundation for the subsequent extrusion release process. "Front-end opening" means that the inlet end of the extrusion bars 71 has an open design that facilitates the introduction of the packaging bag. For example, the extrusion bars 71 can be designed with a flared inlet, or their front edge can be beveled or curved to smoothly guide the packaging bag into the extrusion area.

[0030] The release gap 72 refers to a specific distance or channel formed between the two vertically arranged compression bars 71. The size and shape of this release gap 72 are carefully designed to allow the non-compression portion of the bag (i.e., the clamping side, typically the sealed edge of the bag) to pass through smoothly. Specifically, the width of the release gap 72 can be slightly greater than the thickness of the bag but less than the width of the material, thus avoiding unnecessary compression or damage to the clamping side of the bag while compressing the material. The presence of the release gap 72 not only protects the integrity of the bag but also provides the necessary space and guidance for the material to smoothly exit from the opening of the bag.

[0031] "Inclined setting" refers to a preset angle between the axes or main working surfaces of the two extrusion rods 71 ​​and the conveying direction of the packaging bag, rather than parallel to the conveying direction. This allows the packaging bag to be gradually subjected to extrusion force during conveying, achieving progressive extrusion of the material. This progressive extrusion method avoids the impact of instantaneous high pressure on the material or packaging bag, ensuring that the material can be smoothly and completely detached from the packaging bag, significantly improving the efficiency and integrity of material detachment. This overcomes the problem in existing technologies where the extrusion components cannot accurately and stably act on the packaging bag, resulting in compromised material detachment efficiency and integrity.

[0032] like Figure 3 As shown, this application further proposes that the lower front end of the two squeezing rods 71 ​​is provided with a guide rod 6 on the opposite side of the unpacking assembly 5. The guide rod 6 is fixed to the end of the lower squeezing rod 71 and tilted downward to lift and guide the packaging bag into the disengagement gap 72.

[0033] The guide rod 6 is located on the opposite side of the unpacking assembly 5, i.e., after the packaging bag is cut, but before it enters the extrusion and release assembly 7. Its downward-sloping design forms a guide ramp that rises from low to high. When the packaging bag, especially its lower edge, contacts the guide rod 6 during transport, the guide rod 6 actively intervenes, using its inclined surface to gradually lift the lower edge of the packaging bag. This lifting action not only corrects any sagging or posture deviation of the packaging bag but also forcibly guides the packaging bag to the correct entry position of the release gap 72 between the two extrusion rods 71. Through this pre-guided physical guidance and position correction, the problem of the packaging bag failing to smoothly enter the release gap 72 due to unstable posture, wrinkles, or sagging is effectively avoided.

[0034] like Figure 3 As shown, this application proposes an anti-detachment component 9, which includes a pressure box 91 and a base plate 94 disposed on the side of the extrusion detachment component 7. The base plate 94 is located at the bottom of the upward lower pressure belt 44 and is fixed to the inside of the frame 1. The pressure box 91 is located at the top of the downward upper pressure belt 43. A counterweight 92 is disposed inside the pressure box 91. The pressure box 91 is movably connected to the limiting rod 93 on the inside of the frame 1 through the upper strip hole.

[0035] The anti-detachment component 9 solves the problem of packaging bags easily shifting, tilting, or detaching from the predetermined conveying path during the compression and detachment process. The base plate 94 is set at the bottom of the upward lower pressing belt 44 and fixed to the inside of the frame 1, providing a stable support benchmark for the packaging bags during conveying. At the same time, the pressing box 91 is set on the upper part of the downward upper pressing belt 43, and uses the gravity generated by the counterweight 92 inside it to apply a continuous and stable downward pressing force to the packaging bags. This gravity pressing method can adaptively fit packaging bags of different thicknesses or shapes, effectively suppressing the floating or shaking of the packaging bags during the compression process. Furthermore, the pressing box 91 is connected to the limiting rod 93 on the inside of the frame 1 through the upper slot, so that the pressing box 91 has a certain floating space while maintaining the pressing effect on the packaging bags. This allows it to maintain constant pressure when dealing with thickness changes caused by material passing through, avoiding material jamming or excessive squeezing due to rigid constraints, thereby ensuring smooth conveying and efficient separation of the packaging bag in the extrusion and separation component 7, and significantly improving the stability and continuity of the material separation process.

[0036] like Figure 1 As shown, this application further proposes a milk stick packaging bag unpacking and separation device, which also includes a feeding component. The feeding component includes a disc feeder 10. The disc feeder 10 sorts and conveys the bagged material to the conveyor belt 2 through a narrow strip conveyor 11 installed on itself. The side of the conveyor belt 2 is provided with an inclined triangular baffle 12. The triangular baffle 12 receives the bagged material sent out by the narrow strip conveyor 11 and guides it to the middle of the conveyor belt 2.

[0037] The feeding assembly is a mechanism used to introduce bagged materials to be processed from the external environment or storage area into the internal conveying path of the unpacking and separating device. Its main function is to achieve the initial introduction and connection of materials, providing the source for subsequent material handling and conveying. The disc feeder 10 is a device that uses the centrifugal force or friction of a rotating disc to disperse, arrange, and orient stacked or scattered materials. Its core function is to transform disordered bagged materials into an ordered state, providing a single-row or evenly spaced material flow for subsequent narrow-strip conveying.

[0038] The narrow-strip conveyor 11 is a narrow-width conveying mechanism specifically designed to carry and transport single-row spaced materials after being sorted by a feeder. Its function is to precisely convey the bagged materials sorted by the disc feeder 10 onto the conveyor belt 2 at a stable speed and spacing. The narrow-strip conveyor 11 can be a narrow-width belt conveyor, with a drive motor driving the belt in cyclical motion to smoothly transport the materials.

[0039] An inclined triangular baffle 12, with an inclined surface and triangular cross-section, is installed on the side of the conveyor belt 2. Its function is to physically intercept and guide the bagged material conveyed by the narrow conveyor 11, ensuring that the material is accurately centered or aligned on the conveyor belt 2 and preventing deviation. The inclined triangular baffle 12 is a metal plate fixedly mounted on the frame 1, and its inclination angle and position are precisely calculated to accommodate the material size and conveying speed.

[0040] like Figure 4 , 5 As shown, this application further proposes that one end of the vibration rod 81 of the vibration assembly 8 is hinged to the frame 1, and the other end of the vibration rod 81 is movably set with the inner groove 83 of the cam 82. The cam 82 is driven by the swing motor 84 installed on the outside of the frame 1.

[0041] One end of the vibrating rod 81 is hinged to the frame 1, providing a stable fulcrum for vibration and ensuring the regularity of the vibration action. The other end of the vibrating rod 81 is movably set in the inner groove 83 of the cam 82. This structural design utilizes the rotational motion of the cam 82 to convert it into the reciprocating oscillation of the vibrating rod 81, so that the vibration frequency and amplitude can be directly controlled by the rotational state of the cam 82. The cam 82 is driven by the oscillating motor 84 mounted on the outside of the frame 1, achieving effective decoupling between the power source and the vibration actuator, allowing the vibration intensity to be flexibly adjusted according to the characteristics of the material. This mechanical vibration drive method is not only compact in structure, but also ensures that during the extrusion and separation process, the vibrating rod 81 always maintains the same direction of vibration as the lower side of the extrusion rod 71, thereby forming a continuous and stable vibration field at the extrusion and separation assembly 7. This effectively breaks the adhesion between the material and the inner wall of the packaging bag, ensuring that the material can smoothly separate from the packaging bag, avoiding the blockage problem caused by adhesion, and significantly improving the efficiency and stability of unpacking and separation.

[0042] The implementation principle of the milk stick packaging bag unpacking and separation device in this application embodiment is as follows: When defective bagged milk sticks need to be unpacked and separated, they are first automatically fed by the feeding assembly. The disc feeder 10 performs preliminary sorting of the bagged material and then conveys the sorted bagged material to the conveyor belt 2 via its own narrow strip conveyor 11. The inclined triangular baffle 12 set on the side of the conveyor belt 2 can receive the bagged material fed by the narrow strip conveyor 11 and guide it to the middle of the conveyor belt 2, ensuring that the material is accurately positioned on the conveyor belt 2. Next, the bagged material moves forward on the conveyor belt 2. Before entering the clamping and conveying assembly 4, it passes through the adjuster 3. The adjuster 3 includes an adjusting roller 31 set at the upper end of the tail of the conveyor belt 2. The adjusting roller 31 crushes and adjusts the clamping ends on both sides of the packaging bag. The inner material of the bag can safely pass through the through groove 32 which is adapted to the shape of the milk strip material. The adjusting roller 31 is connected to the drive roller 47 through the compaction belt 33 to ensure the synchronization of the adjustment process. The adjusted bagged material then enters the clamping and conveying assembly 4. The clamping and conveying assembly 4 includes a first clamping member 41 and a second clamping member 42, which are disposed opposite each other on both sides inside the frame 1. Both the first clamping member 41 and the second clamping member 42 include an upper clamping band 43 and a lower clamping band 44 disposed opposite each other. The upper clamping band 43 is installed in the corresponding slots on the sides of the drive roller 45 and the transmission roller 47, while the lower clamping band 44 is supported in the slots on both sides of the support wheels at the front and rear ends of the lower pressure roller 46 and the conveyor belt 2. The drive motor 48 in the drive assembly is installed on the outside of the frame 1 and drives the drive roller 45 to rotate. The side of the drive roller 45 drives the lower clamping band 44 and the conveyor belt 2 synchronously through gear transmission, thereby enabling the clamping and conveying assembly 4 and the adjuster 3 to achieve synchronous linkage. The first clamping member 41 and the second clamping member 42 convey the material by clamping the end of the packaging bag, and form a passage space between the rear ends of the conveyor belt 2 for the material to pass through. This clamping and conveying method avoids the tediousness and instability of manual handling, and improves conveying efficiency and positioning accuracy. When the packaging bag is clamped and conveyed to the unpacking assembly 5, the unpacking assembly 5 begins to cut and open one end of the packaging bag. The cutting motor 51 drives the cutting blade 52 to cut and open one end of the packaging bag. The cutting blade 52 extends downward into the gap between the lower clamping belt 44 and the conveyor belt 2, ensuring accurate cutting position and no damage to the conveying mechanism. Compared with manually cutting the packaging bag with scissors, this automated cutting method is not only more efficient, but also avoids the risk of operator hand cuts. After the packaging bag is cut open, it continues to be conveyed forward off the conveyor belt 2. One end of the packaging bag is held and moved forward by the first clamping member 41, while the other end of the packaging bag is free and falls and flips over. It is lifted by the guide rod 6 at the front end of the extrusion assembly 7 and guided into the extrusion gap 72. After the packaging bag enters the extrusion gap 72, the inclined extrusion rod 71 applies extrusion force to the cut packaging bag. Due to the gravity of the extruded milk strip, it will hang downwards, causing the milk strip material to detach from the packaging bag.

[0043] To further improve material separation efficiency and prevent adhesion, the device is also equipped with a vibration component 8. When the extrusion separation component 7 applies extrusion pressure to the packaging bag, the vibration component 8 simultaneously applies vibration to the packaging bag and the material at the extrusion separation component 7, effectively preventing the milk strip material from remaining in the packaging bag due to stickiness and ensuring the full separation of the material.

[0044] In addition, the device includes an anti-detachment component 9 to ensure the stability of the packaging bag during the compression detachment process. The anti-detachment component 9 includes a clamping box 91 and a base plate 94 that match the length of the compression detachment component 7. The base plate 94 is located at the bottom of the upward lower clamping belt 44, providing support for the packaging bag. The clamping box 91 is located above the downward upper clamping belt 43 and contains a counterweight 92. The clamping box 91 is vertically connected to the limiting rod 93 on the inner side of the frame 1 through a slotted hole at the top. This design allows the clamping box 91 to be finely adjusted according to the thickness of the packaging bag, applying appropriate clamping force to the packaging bag and preventing displacement or detachment during the compression detachment process, further improving the stability and efficiency of the separation.

[0045] Through the aforementioned automated process, the milk bar packaging bag unpacking and separation device can efficiently and safely separate substandard milk bar materials from the packaging bag, significantly reducing the intensity of manual labor, avoiding the risk of hand injuries and cuts, and the unpacking efficiency is far higher than that of traditional manual operation. It can be well matched with the pace of automated production lines and solves many problems existing in the background technology.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for unpacking and separating milk stick packaging bags, characterized in that: It includes a frame (1) on which a conveyor belt (2), an adjuster (3), a clamping conveyor assembly (4), an unpacking assembly (5), and a vibration assembly (8) are mounted; The adjuster (3) includes an adjusting roller (31) at the upper end of the tail of the conveyor belt (2), which is used to press and adjust the clamping parts at both ends of the packaging bag; The clamping and conveying assembly (4) includes a first clamping member (41) and a second clamping member (42) which are disposed opposite to each other inside the frame (1) and clamp the ends of the packaging bag for conveying. The first clamping member (41) and the second clamping member (42) form a passage space for material to pass through between the rear ends of the conveyor belt (2). The unpacking assembly (5) includes a cutting motor (51) fixed on the outside of the rear frame (1) of the adjuster (3). The cutting motor (51) drives the cutting blade (52) to cut and open one end of the packaging bag. The extrusion release assembly (7) includes an extruder arranged at an angle in the space passing through the rear end of the conveyor belt (2). The extruder includes two extrusion rods (71) arranged vertically with open front ends and fixed inside the frame (1). The two extrusion rods (71) apply extrusion force to the cut packaging bag so that the material is released from the packaging bag. The vibration assembly (8) includes a vibration rod (81) located on the side of the extrusion rod (71), the vibration rod (81) vibrating along the packaging bag and material outside the extrusion release assembly (7) to prevent adhesion.

2. The milk strip packaging bag unpacking and separation device according to claim 1, characterized in that: The first clamping member (41) and the second clamping member (42) both include an upper clamping band (43) and a lower clamping band (44) arranged opposite to each other. The upper clamping band (43) is installed in the corresponding slots on the side of the drive roller (45) and the transmission roller (47). The lower clamping band (44) is supported in the slots on both sides of the support wheels at the front and rear ends of the lower pressure roller (46) and the conveyor belt (2).

3. The milk strip packaging bag unpacking and separation device according to claim 2, characterized in that: The adjusting roller (31) of the adjuster (3) is provided with a through groove (32) that is adapted to the shape of the material. The through groove (32) is connected to the transmission roller (47) through the compaction belt (33).

4. The milk strip packaging bag unpacking and separation device according to claim 3, characterized in that: It also includes a drive assembly, which includes a drive motor (48) mounted on the outside of the frame (1) and driving the drive roller (45) to rotate. The side of the drive roller (45) drives the lower pressing belt (44) and the conveyor belt (2) to drive synchronously through gear transmission. At the same time, the clamping conveyor assembly (4) and the adjuster (3) are linked synchronously.

5. The milk strip packaging bag unpacking and separation device according to claim 4, characterized in that: The cutting motor (51) is mounted on one side of the frame (1), and the cutting blade (52) extends downward into the gap between the lower pressing belt (44) and the conveyor belt (2).

6. The milk strip packaging bag unpacking and separation device according to claim 1, characterized in that: The extrusion release assembly (7) has a release gap (72) between the two extrusion rods (71) that passes through the clamping side of the packaging bag, and the two extrusion rods (71) are inclined along the conveying direction of the packaging bag.

7. The milk strip packaging bag unpacking and separation device according to claim 6, characterized in that: The lower front end of the two extrusion rods (71) is provided with a guide rod (6) on the opposite side of the unpacking assembly (5). The guide rod (6) is fixed to the end of the lower extrusion rod (71) and tilted downward to lift and guide the packaging bag into the release gap (72).

8. The milk strip packaging bag unpacking and separation device according to claim 6, characterized in that: It also includes an anti-detachment component (9), which includes a pressure box (91) and a base plate (94) provided on the side of the extrusion detachment component (7). The base plate (94) is located at the bottom of the upward lower pressure belt (44) and fixed to the inside of the frame (1). The pressure box (91) is located at the top of the downward upper pressure belt (43). A counterweight (92) is provided inside the pressure box (91). The pressure box (91) is movably connected to the limiting rod (93) on the inside of the frame (1) through the strip hole at the top.

9. The milk strip packaging bag unpacking and separation device according to claim 1, characterized in that: It also includes a feeding assembly, which includes a disc feeder (10). The disc feeder (10) organizes and transports the packaging bags onto the conveyor belt (2) through a narrow strip conveyor (11) installed on itself. The conveyor belt (2) is provided with an inclined triangular baffle (12) on its side. The triangular baffle (12) receives the packaging bags sent out by the narrow strip conveyor (11) and guides them to the middle of the conveyor belt (2).

10. The milk strip packaging bag unpacking and separation device according to claim 1, characterized in that: The vibration rod (81) of the vibration assembly (8) is hinged at one end to the frame (1), and the other end of the vibration rod (81) is movably set in the inner groove (83) of the cam (82). The cam (82) is driven by the swing motor (84) installed on the outside of the frame (1).

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