Automatic stacking equipment and method for sausage casing

Abstract

The present application relates to a sausage production equipment technical field, specifically is related to a kind of sausage shrink casing automatic stacking equipment and method;Including: folding module, with the first limiting rod capable of being fixed to sausage tube Limit and the drive unit capable of driving casing folding on sausage tube;Guide module, fixedly arranged in one side of the folding module and arranged in one end close to the end of the first limiting rod;The guide module is equipped with the guide rod capable of being horizontally close to or away from the first limiting rod and the second limiting rod capable of being longitudinally close to or away from the guide rod;Drive module, horizontally fixedly arranged in one side of the folding module, the drive module is equipped with the push chuck capable of being distance to the first limiting rod end clamping stack;Detection module, fixedly arranged on the folding module;The present application not only can be twisted to correct casing automatically and can realize automatic breakage detection to casing.

Description

Technical Field

[0001] This invention relates to the field of sausage production equipment technology, specifically to an automatic stacking device and method for attaching sausage casings. Background Technology

[0002] In the sausage production process, the shrinking and stacking of casings is a crucial step in ensuring product quality and production efficiency. Most existing casing stacking machines rely on friction drives or simple guiding mechanisms to stack casings. Their structures are relatively simple and their functions are limited, resulting in the following technical problems: First, due to the lack of effective measures to correct the casing posture, casings are prone to twisting, knotting, or uneven stacking during the shrinking process, hindering subsequent filling and severely impacting production efficiency and product consistency. Secondly, existing equipment generally lacks real-time detection methods for casing damage or leakage. When there are minor tears in the casing, it is often difficult to detect them in time, which can easily cause liquid leakage during the filling process. This not only affects product quality but also increases the scrap rate and production costs. Furthermore, some semi-automatic equipment still requires manual assistance to push or sort the casings, which is labor-intensive, inefficient, and highly dependent on the operator's skill level, which is not conducive to the promotion of large-scale and automated production. Summary of the Invention

[0003] To address the aforementioned problems, an automatic stacking device for sausage casing is provided. This device avoids knotting and twisting during the casing shrinking process, while also featuring real-time damage detection and fully automated stacking operation. This solves the technical problems of existing stacking devices that easily lead to casing knotting and the inability to perform damage detection.

[0004] To address the problems of existing technologies, this invention provides an automatic stacking device for shrinking sausage casings, used to shrink sausage casings outside an enema tube, comprising: a stacking module, equipped with a first limiting rod capable of securing the enema tube and a driving unit capable of driving the sausage casings to stack onto the enema tube; a guiding module, fixedly disposed on one side of the stacking module and located at one end near the end of the first limiting rod; the guiding module is equipped with a guide rod capable of horizontally approaching or moving away from the first limiting rod and a second limiting rod capable of longitudinally approaching or moving away from the guide rod; a driving module, horizontally fixedly disposed on one side of the stacking module and located above the first limiting rod, the driving module being equipped with a pusher head capable of clamping the sausage casings at a fixed distance toward the end of the first limiting rod; and a detection module, fixedly disposed on the stacking module and equipped with an air guide tube capable of supplying air toward the inside of the first limiting rod.

[0005] Preferably, the stacking module further includes a housing and a limiting seat that can horizontally fix the first limiting rod outside the housing; the limiting seat is fixedly disposed outside the housing in an inclined state; the driving unit is fixedly disposed inside the housing; and the first limiting rod is rotatably disposed on the limiting seat in a horizontal state.

[0006] Preferably, a sealing plug is coaxially provided outside the first limiting rod to ensure a real-time seal between the first limiting rod and the enema tube; the sealing plug is coaxially fixed outside the first limiting rod and located near the rear end of the first limiting rod.

[0007] Preferably, the drive unit has a fixed drive wheel and a movable drive wheel that can move longitudinally closer to and further away from the fixed drive wheel; the movable drive wheel is always in contact with the fixed drive wheel when not in operation.

[0008] Preferably, the guide module further includes a slider that can guide the guide rod horizontally closer to or further away from the stacking module and an adjustment knob that can longitudinally adjust the limiting height of the second limiting rod.

[0009] Preferably, the drive module further includes a torsion spring that can always drive the pusher head to rotate counterclockwise, a linear actuator that can drive the pusher head to slide axially back and forth along the axis of the enema tube, and a release unit that can drive the pusher head to rotate clockwise.

[0010] Preferably, the detection module further includes a controller capable of supplying air to the air duct and monitoring the air pressure in real time.

[0011] An automatic stacking method for sausage casings, applied to an automatic stacking device for sausage casings, includes the following steps: S1: Coaxially sleeve the enema tube outside the first limiting rod, and rotate the enema tube between the fixed drive wheel and the movable drive wheel to ensure that the enema tube is in the stacking position, and pre-sleeve one end of the sausage casing onto the front end of the enema tube; S2: Connect to an external power source to drive the rotary actuator to rotate the fixed drive wheel and the movable drive wheel, causing the casing outside the enema tube to be driven by friction and folded segment by segment along the direction of the enema tube. S3: When it is necessary to stack sausage casings in stages, the release unit controls the pusher head to rotate to the standby state, and then drives the linear actuator to move the pusher head along the axis. After reaching the predetermined stroke, the release unit constraint is released, so that the pusher head is reset under the action of the torsion spring and contacts the sausage casing. Finally, the linear actuator continues to be driven to achieve segmented clamping and pushing of the sausage casing, thereby completing automatic sleeve retraction. S4: The controller continuously supplies air to the area between the enema tube and the guide rod through the air duct, forming an air-filled section inside the casing. This keeps the casing taut during stacking and automatically corrects its posture, preventing twisting, wrinkling, or tangling. S5: Adjust the distance between the guide rod and the second limit rod by turning the adjustment knob located at the bottom of the slider to adapt to the passage gap of different sizes of casings and ensure that the casings are controlled and stable during the conveying and stacking process; S6: The controller monitors the output pressure of the air duct in real time. When the pressure fluctuates abnormally, it identifies whether the casing is damaged or leaking, and issues an early warning or stops operation to ensure product quality.

[0012] The advantages of this invention compared to the prior art are: 1. This invention achieves fully automatic operation of casing from placement to segmental folding by cooperating with a rotary driver, a pusher, and a linear driver, combined with the guiding function of a first limiting rod and a guide rod.

[0013] 2. The present invention forms an air-filled section between the enema tube and the guide rod through an air-conducting tube, so that the casings are kept taut during the stacking process, avoiding twisting, wrinkling or displacement, and ensuring that the casings are stacked evenly after being shrunk.

[0014] 3. This invention uses a controller combined with a pressure sensor to monitor the airtightness of the casing in real time during the air supply correction process. Once damage or leakage is detected, feedback can be provided or the operation can be stopped in time, thus eliminating unqualified casings at the source and ensuring product quality.

[0015] 4. This invention achieves phased clamping and pushing by using a pusher head in conjunction with a torsion spring and a release unit, effectively solving the problems of slippage or uneven stacking that are prone to occur in traditional continuous friction drive, and further improving the stability of stacking. Attached Figure Description

[0016] Figure 1 This is a 3D diagram of an automatic stacking device for sausage casings.

[0017] Figure 2 Side view of an automatic stacking device for sausage casings. Figure 1 .

[0018] Figure 3 yes Figure 2 A magnified view of part A.

[0019] Figure 4 This is a front view of an automatic stacking device for sausage casings.

[0020] Figure 5 This is an exploded 3D view of the guide module in an automatic stacking device for sausage casing.

[0021] Figure 6 This is an exploded 3D view of the stacking module in an automatic stacking device for sausage casing.

[0022] Figure 7 Side view of an automatic stacking device for sausage casings. Figure 2 .

[0023] Figure 8 yes Figure 7 Sectional view of section BB.

[0024] Figure 9 yes Figure 8 A magnified view of a portion of point C.

[0025] Figure 10 This is a 3D view of the drive module in an automatic stacking device for sausage casing.

[0026] The numbers on the map are: 1. Stacking module; 11. Enema tube; 12. First limiting rod; 121. Sealing plug; 13. Drive unit; 131. Fixed drive wheel; 132. Movable drive wheel; 14. Housing; 15. Limiting seat; 2. Guide module; 21. Guide rod; 22. Second limit rod; 23. Adjustment knob; 24. Slide rail; 25. Mounting bracket; 26. Slider; 3. Drive module; 31. Push chuck; 32. Torsion spring; 33. Linear actuator; 34. Release unit; 4. Detection module; 41. Air duct; 42. Controller. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1 to 10The image shows an automatic stacking device for shrinking sausage casings, used to shrink sausage casings outside an enema tube 11. It is characterized by comprising: a stacking module 1, equipped with a first limiting rod 12 for securing the enema tube 11 and a driving unit 13 for driving the sausage casings to fold onto the enema tube 11; a guiding module 2, fixedly disposed on one side of the stacking module 1 and located near the end of the first limiting rod 12; the guiding module 2 is equipped with a guiding rod 21 that can horizontally approach or move away from the first limiting rod 12 and a second limiting rod 22 that can longitudinally approach or move away from the guiding rod 21; a driving module 3, horizontally fixedly disposed on one side of the stacking module 1 and located above the first limiting rod 12, the driving module 3 being equipped with a pusher head 31 capable of clamping the sausage casings at a fixed distance toward the end of the first limiting rod 12; and a detection module 4, fixedly disposed on the stacking module 1 and equipped with an air guide tube 41 capable of supplying air toward the inside of the first limiting rod 12.

[0029] When it is necessary to perform the casing stacking operation, firstly, the enema tube 11 is coaxially inserted outside the first limiting rod 12, and the first limiting rod 12 is used to initially limit and fix the enema tube 11; then, the first limiting rod 12 is pushed to rotate and adjust to the position corresponding to the drive unit 13, so that it can cooperate with the drive unit 13. Next, one end of the casing is fitted onto the outer wall of the enema tube 11, and the operator pushes the casing toward the end of the enema tube 11 until the casing enters the effective driving range of the drive unit 13, thereby realizing the automatic pushing of the casing by the drive unit 13.

[0030] Based on this, to further achieve efficient casing folding, the detection module 4 activates, introducing air into the first limiting rod 12 through the air guide tube 41. This air flows along the first limiting rod 12 into the enema tube 11 and ultimately into the casing's inner cavity, creating an inflated section between the end of the enema tube 11 and the guide rod 21. At this time, with the introduction of air, the casing is inflated and supported, automatically correcting any twisting or uneven folding under its own tension. Simultaneously, the second limiting rod 22 activates, longitudinally limiting the casing guided by the guide rod 21, ensuring that the gap between the guide rod 21 and the end of the enema tube 11 is only large enough for the casing to pass smoothly. This limiting measure effectively prevents the air from diffusing to the rear section, ensuring that the air is concentrated only in the inflated area between the end of the enema tube 11 and the guide rod 21.

[0031] By monitoring the air pressure in real time during the inflation process, it is possible not only to dynamically monitor the uniformity of casing shrinkage during the casing self-correction process, but also to promptly determine whether there is any damage or leakage in the casing, ensuring the stability of the stacking process and the consistency of the finished product.

[0032] Building upon the automatic pushing and stacking of casings, the system further utilizes air inflation to achieve self-correction of the casings, preventing casing twisting or uneven shrinkage caused by manual operation. Simultaneously, through the synergistic effect of limiting and air pressure detection, casing damage can be detected early and promptly removed, ensuring production continuity and finished product qualification rate.

[0033] See Figure 1 and Figure 2 As shown: The stacking module 1 also includes a housing 14 and a limiting seat 15 that can horizontally limit the first limiting rod 12 outside the housing 14; the limiting seat 15 is fixedly disposed outside the housing 14 in an inclined state; the driving unit 13 is fixedly disposed inside the housing 14; the first limiting rod 12 is rotatably disposed on the limiting seat 15 in a horizontal state.

[0034] The first limiting rod 12 is specifically a hollow tubular structure with an opening at one end, used to guide and limit the casing during the casing stacking process. The first limiting rod 12 is fixedly mounted at a preset angle to the outside of the housing 14 via a limiting seat 15, maintaining a coaxial guiding relationship with the enema tube 11. During the process of the casing being gradually stacked onto the outer wall of the enema tube 11 by the drive unit 13, the slight tilt of the first limiting rod 12 allows the natural sliding effect generated by the casing's own weight to automatically move the stacked casing towards the rear end of the enema tube 11. This not only effectively prevents the casing from piling up or unevenly stacking in the middle of the enema tube 11, but also maintains uniform force and neat arrangement of the casing during stacking, thereby improving the stacking efficiency and overall stability.

[0035] By adopting a hollow first limiting rod 12 structure with an inclined setting, the casing is guided and limited, and its own weight is used to achieve automatic backward movement, avoiding uneven stacking or jamming caused by manual intervention; at the same time, it ensures that the casing can be continuously and smoothly transported to the rear section, improving the stability and reliability of stacking.

[0036] See Figure 6 and Figure 8 As shown: A sealing sleeve 121 is coaxially provided outside the first limiting rod 12, which can ensure the seal between the first limiting rod 12 and the enema tube 11 in real time; the sealing sleeve 121 is coaxially fixed outside the first limiting rod 12 and is located near the rear end of the first limiting rod 12.

[0037] By coaxially installing a sealing plug 121 at the end of the first limiting rod 12, a stable sealing interface can be formed when the enema tube 11 is fitted with the first limiting rod 12. The sealing plug 121 is made of elastic sealing material and its dimensions match the outer wall of the enema tube 11 and the inner wall of the first limiting rod 12, ensuring a tight fit during installation. When the enema tube 11 is inserted into the first limiting rod 12, the sealing plug 121 generates a moderate clamping force in the radial direction, effectively preventing leakage of gas or liquid between them, ensuring the stability and controllability of the internal air pressure environment during gas introduction, inflation, and retraction. Simultaneously, the sealing plug 121 has good wear resistance and replaceability, maintaining its sealing performance over long-term use and reducing maintenance costs.

[0038] By setting a sealing plug 121 at the end of the first limiting rod 12, the sealing reliability between the enema tube 11 and the first limiting rod 12 is effectively improved, avoiding insufficient inflation or displacement of the casing caused by air source leakage. It also improves the control accuracy of the air pressure environment of the entire device during the compression process.

[0039] See Figure 8 As shown: The drive unit 13 is provided with a fixed drive wheel 131 and a movable drive wheel 132 that can move longitudinally closer to and away from the fixed drive wheel 131; the movable drive wheel 132 is always in contact with the fixed drive wheel 131 when not in operation.

[0040] The drive unit 13 also includes a rotary driver that can drive the fixed drive wheel 131 and the movable drive wheel 132 to rotate synchronously toward the first limit rod 12.

[0041] When it is necessary to fold the sausage casings outside the enema tube 11 to achieve automatic casing loading and conveying, only an external power supply needs to be connected to drive the rotary driver. The driving force output by the rotary driver will be transmitted to the fixed drive wheel 131 and the movable drive wheel 132 arranged on the upper and lower sides of the enema tube 11, respectively, to rotate synchronously in the direction of the first limit rod 12. When the enema tube 11 is covered with sausage casings and is located between the fixed drive wheel 131 and the movable drive wheel 132, the movable drive wheel 132 will form a stable frictional contact with the surface of the sausage casing, thereby realizing continuous driving and folding of the sausage casings. Through this symmetrical frictional driving method, it is possible to ensure that the sausage casings are subjected to uniform force during the conveying process, avoiding problems such as casing displacement, wrinkles or damage caused by unilateral driving, while improving the stability and accuracy of the sausage casing conveying process.

[0042] See Figure 3 and Figure 5As shown: The guide module 2 also includes a slider 26 that can guide the guide rod 21 to move horizontally closer to or away from the stacking module 1, and an adjustment knob 23 that can adjust the limiting height of the second limiting rod 22 longitudinally.

[0043] The guiding module 2 also includes a slide rail 24 and a mounting bracket 25. The slide rail 24 is horizontally fixed to one side of the housing 14 via the mounting bracket 25. The slider 26 is slidably mounted on the slide rail 24 and works in coordination with the slide rail 24 to form a smooth linear motion, ensuring adjustment accuracy and operational stability. The guide rod 21 is vertically fixed on the slider 26 to guide the direction of the casings during the stacking and shrinking process, thereby preventing the casings from shifting or twisting during transport.

[0044] The second limiting rod 22 is L-shaped, with its horizontal end parallel to the guide rod 21, forming a lateral limit for the passage gap of the casing. Its vertical section extends longitudinally through the slider 26 and slides with it to ensure a stable relative movement relationship with the slider 26 during adjustment. The adjustment knob 23 is rotatably mounted on the bottom of the slider 26 and is threadedly connected to the vertical section of the second limiting rod 22, facilitating fine adjustment by the operator. When it is necessary to change the distance between the guide rod 21 and the second limiting rod 22, the operator only needs to rotate the adjustment knob 23 to drive the second limiting rod 22 to make a slight adjustment in the vertical direction, thereby achieving longitudinal adjustment of the distance between the guide rod 21 and the second limiting rod 22. This allows for flexible construction of passage gaps to adapt to different casing sizes, thus meeting the needs of various casing compression conditions.

[0045] See Figure 9 and Figure 10 As shown: The drive module 3 is also provided with a torsion spring 32 that can always drive the pusher head 31 to rotate counterclockwise, a linear actuator 33 that can drive the pusher head 31 to slide axially back and forth along the axis of the enema tube 11, and a release unit 34 that can drive the pusher head 31 to rotate clockwise.

[0046] The push clamp 31 is rotatably mounted on the drive end of the linear actuator 33 via a torsion spring 32. The preload of the torsion spring 32 maintains a counter-clockwise deflection, ensuring the push clamp end naturally adheres to and remains in contact with the sausage casing when not in operation, guaranteeing immediate response to the push clamping action. During a phased push clamping operation, the release unit 34 is first activated, causing the push clamp 31 to rotate clockwise under control, its end detaching from the sausage casing surface and entering a standby state. Then, the linear actuator 33 is activated, causing its drive end to move the push clamp 31 axially towards the drive unit 13. After sliding to a predetermined travel position, the release unit 34 releases the constraint of the push clamp 31. At this point, the push clamp 31 rapidly rotates counter-clockwise under the restoring force of the torsion spring 32, causing the push clamp end to re-contact the sausage casing fitted over the enema tube 11 and generate a clamping force. The linear actuator 33 then continues to operate, pushing the pusher chuck 31 to grip the sausage casing and advance it axially towards the rear end of the enema tube 11, thus achieving segmented stacking of the sausage casing. This process can be repeated periodically, thereby achieving automatic, continuous, and stable casing retraction.

[0047] Through the coordinated action of the pusher chuck 31, torsion spring 32, linear actuator 33, and release unit 34, a staged push-clamping mechanism is formed. This not only ensures that the pusher chuck 31 remains in contact with the casing when not in operation, avoiding empty clamping due to positional shift, but also enables precise control of the push-clamping action with the assistance of the release unit 34. Compared to the traditional continuous friction drive method, this solution has the advantages of precise action, reliable clamping, and stable pushing force, effectively preventing casing wrinkles, damage, or displacement.

[0048] See Figure 7 As shown: The detection module 4 also includes a controller 42 that can supply air to the air duct 41 and monitor the air pressure in real time.

[0049] By setting up a controller 42 that can simultaneously supply air to the air duct 41 and monitor the air pressure in real time, a stable air supply is achieved between the enema tube 11 and the guide tube during the casing stacking process. This creates an inflatable section inside the casing, ensuring that the casing remains taut and unfolded throughout the stacking and transporting process, effectively eliminating twisting, wrinkling, or tangling that may occur during stacking. Simultaneously, the controller 42 dynamically detects the air pressure output from the air duct 41, enabling real-time assessment of the casing's state within the inflatable section. Any abnormal pressure fluctuations can identify casing damage or leakage. Through this method, dual protection for the casing is achieved through air supply correction combined with air pressure monitoring, ensuring both posture stability and quality monitoring during transport.

[0050] The controller 42, which integrates air supply and air pressure detection, realizes the dual functions of casing correction and real-time monitoring. It can not only continuously ensure that the casings are in a non-twisting and smooth unfolding state during the stacking process, significantly improving the stability and uniformity of the set, but also detect defects such as casing leakage or damage in the first time, preventing unqualified products from entering the subsequent processing stage, thereby greatly improving production efficiency and product quality reliability.

[0051] An automatic stacking method for sausage casings, applied to an automatic stacking device for sausage casings, includes the following steps: S1: Coaxially sleeve the enema tube 11 outside the first limiting rod 12, and rotate the enema tube 11 between the fixed drive wheel 131 and the movable drive wheel 132 to ensure that the enema tube 11 is in the stacking position, and pre-sleeve one end of the casing onto the front end of the enema tube 11. S2: Connect to an external power source to drive the rotary driver to rotate, causing the fixed drive wheel 131 and the movable drive wheel 132 to rotate, so that the casing outside the enema tube 11 is driven by friction and folds down segment by segment along the direction of the enema tube 11. S3: When it is necessary to stack sausage casings in stages, the release unit 34 controls the pusher head 31 to rotate to the standby state, and then drives the linear actuator 33 to move the pusher head 31 axially. After reaching the predetermined stroke, the release unit 34 is released, so that the pusher head 31 is reset under the action of the torsion spring 32 and contacts the sausage casing. Finally, the linear actuator 33 continues to be driven to achieve segmented clamping and pushing of the sausage casing, thereby completing automatic sleeve retraction. S4: The controller 42 continuously supplies air to the area between the enema tube 11 and the guide rod 21 through the air duct 41, forming an air-filled section inside the casing, so that the casing remains taut and automatically corrects its posture during stacking, avoiding twisting, wrinkling or tangling. S5: Adjust the distance between the guide rod 21 and the second limit rod 22 by turning the adjustment knob 23 located at the bottom of the slider 26 to adapt to the passage gap of different specifications of casings and ensure that the casings are controlled and stable during the conveying and stacking process; S6: The controller 42 monitors the output pressure of the air duct 41 in real time. When the pressure fluctuates abnormally, it identifies whether the casing is damaged or leaking, and issues an early warning or stops operation to ensure product quality.

[0052] This invention can not only automatically correct the torsion of sausage casings, but also automatically detect damage to sausage casings.

[0053] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. An automatic stacking device for shrinking sausage casings, used to shrink sausage casings outside an enema tube, characterized in that, include: The stacking module is equipped with a first limiting rod that can fix the enema tube and a drive unit that can drive the casing to stack on the enema tube. A guide module is fixedly disposed on one side of the stacking module and at one end near the end of the first limiting rod; the guide module is provided with a guide rod that can horizontally approach or move away from the first limiting rod and a second limiting rod that can longitudinally approach or move away from the guide rod; The drive module is horizontally fixed on one side of the stacking module and located above the first limiting rod. The drive module is equipped with a pusher head that can clamp the casings at a fixed distance toward the end of the first limiting rod. The detection module is fixedly mounted on the stacking module and is equipped with an air guide pipe that can supply air toward the first limiting rod.

2. The automatic stacking equipment for casing sausages according to claim 1, characterized in that, The stacking module also includes a housing and a limiting seat that can horizontally limit the first limiting rod outside the housing; The limiting seat is fixedly installed outside the housing in an inclined state; The drive unit is fixedly disposed inside the housing; The first limiting rod is rotatably mounted on the limiting seat in a horizontal state.

3. The automatic stacking equipment for casing sausages according to claim 2, characterized in that, A sealing plug is also coaxially provided outside the first limiting rod to ensure a real-time seal between the first limiting rod and the enema tube; The sealing sleeve is coaxially fixed outside the first limiting rod and close to the rear end of the first limiting rod.

4. The automatic stacking equipment for casing sausages according to claim 3, characterized in that, The drive unit is equipped with a fixed drive wheel and a movable drive wheel that can move longitudinally towards and away from the fixed drive wheel; when not in operation, the movable drive wheel is always in contact with the fixed drive wheel.

5. An automatic stacking device for sausage casings according to claim 4, characterized in that, The guide module also includes a slider that can guide the guide rod horizontally closer to or further away from the stacking module and an adjustment knob that can longitudinally adjust the limiting height of the second limiting rod.

6. The automatic stacking equipment for casing sausages according to claim 5, characterized in that, The drive module also includes a torsion spring that can always drive the pusher head to rotate counterclockwise, a linear actuator that can drive the pusher head to slide axially back and forth along the axis of the enema tube, and a release unit that can drive the pusher head to rotate clockwise.

7. An automatic stacking device for sausage casings according to claim 6, characterized in that, The detection module also includes a controller capable of supplying air into the air duct and monitoring the air pressure in real time.

8. An automatic stacking method for sausage casings, applied to the automatic stacking equipment for sausage casings as described in claim 7, comprising the following steps: S1: Coaxially sleeve the enema tube outside the first limiting rod, and rotate the enema tube between the fixed drive wheel and the movable drive wheel to ensure that the enema tube is in the stacking position, and pre-sleeve one end of the sausage casing onto the front end of the enema tube; S2: Connect to an external power source to drive the rotary actuator to rotate the fixed drive wheel and the movable drive wheel, causing the casing outside the enema tube to be driven by friction and folded segment by segment along the direction of the enema tube. S3: When it is necessary to stack sausage casings in stages, the release unit controls the pusher head to rotate to the standby state, and then drives the linear actuator to move the pusher head along the axis. After reaching the predetermined stroke, the release unit constraint is released, so that the pusher head is reset under the action of the torsion spring and contacts the sausage casing. Finally, the linear actuator continues to be driven to achieve segmented clamping and pushing of the sausage casing, thereby completing automatic sleeve retraction. S4: The controller continuously supplies air to the area between the enema tube and the guide rod through the air duct, forming an air-filled section inside the casing. This keeps the casing taut during stacking and automatically corrects its posture, preventing twisting, wrinkling, or tangling. S5: Adjust the distance between the guide rod and the second limit rod by turning the adjustment knob located at the bottom of the slider to adapt to the passage gap of different sizes of casings and ensure that the casings are controlled and stable during the conveying and stacking process; S6: The controller monitors the output pressure of the air duct in real time. When the pressure fluctuates abnormally, it identifies whether the casing is damaged or leaking, and issues an early warning or stops operation to ensure product quality.

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