Automatic stacking equipment and method for sleeving and shrinking sausage casings on sausages

Abstract

The invention relates to the technical field of sausage production equipment, in particular to automatic stacking equipment and method for sleeving and shrinking sausage casings in sausages. Comprising a stacking module which is provided with a first limiting rod capable of limiting and fixing a sausage filling pipe and a driving unit capable of driving sausage casings to be stacked on the sausage filling pipe; the guide module is fixedly arranged on one side of the folding module and is arranged at one end close to the end part of the first limiting rod; the guide module is provided with a guide rod which can be horizontally close to or far away from the first limiting rod and a second limiting rod which can be longitudinally close to or far away from the guide rod; the driving module is horizontally and fixedly arranged on one side of the stacking module, and the driving module is provided with a pushing and clamping head capable of clamping and stacking the casings towards the tail end of the first limiting rod at a fixed distance; the detection module is fixedly arranged on the folding module; the sausage casing twisting and correcting device not only can automatically twist and correct the sausage casing, but also can automatically detect the damage of the sausage casing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sausage production equipment, in particular to an automatic stacking equipment and method for sausage casing shrinkage. BACKGROUND

[0002] In the sausage production process, the shrinkage and stacking of the casing are key links to ensure product forming quality and production efficiency. Most of the existing casing stacking machines rely on friction drive or simple guide mechanism to shrink the casing, and their structures are relatively simple and single-functioned, which have the following technical problems:

[0003] Firstly, due to the lack of effective measures to correct the posture of the casing, the casing is prone to twisting, knotting or uneven stacking during shrinkage, which causes the subsequent filling process to be blocked, seriously affecting the production efficiency and product consistency.

[0004] Secondly, the existing equipment generally lacks real-time detection means for casing damage or leakage. When the casing has a small crack, it is often difficult to find in time, which can cause liquid leakage during the filling process, affecting product quality and increasing waste rate and production cost. Furthermore, some semi-automatic equipment still needs manual assistance to push or arrange the casing, which is labor-intensive, low-efficiency and highly dependent on the proficiency of the operator, which is not conducive to the promotion of large-scale and automated production. SUMMARY

[0005] To solve the above problems, an automatic stacking equipment for sausage casing shrinkage is provided, which can avoid knotting and twisting during casing shrinkage, has real-time damage detection function, and realizes fully automatic stacking operation; thereby solving the technical problems that the existing stacking equipment is prone to cause casing knotting and cannot detect damage.

[0006] To solve the existing technical problems, the present application provides an automatic stacking equipment for sausage casing shrinkage to shrink the casing on the sausage tube, which comprises: a stacking module provided with a first limiting rod capable of limiting the sausage tube and a driving unit capable of driving the casing to stack on the sausage tube; a guide module fixedly arranged on one side of the stacking module and arranged at one end close to the end of the first limiting rod; the guide module is provided 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 is horizontally fixedly arranged on one side of the stacking module and located above the first limiting rod, and the driving module is provided with a pusher capable of clamping the casing at a distance towards the end of the first limiting rod; a detection module is fixedly arranged on the stacking module and provided with a gas guide tube capable of supplying gas towards the first limiting rod.

[0007] Preferably, the telescopic module further comprises a shell and a limiting seat capable of horizontally limiting the first limiting rod outside the shell; the limiting seat is fixedly arranged outside the shell in an inclined state; the driving unit is fixedly arranged in the shell; and the first limiting rod is rotatably arranged on the limiting seat in a horizontal state.

[0008] Preferably, the first limiting rod is coaxially provided with a sealing sleeve capable of ensuring the sealing between the first limiting rod and the sausage tube in real time; the sealing sleeve is coaxially fixedly arranged outside the first limiting rod and close to the rear end of the first limiting rod.

[0009] Preferably, the driving unit is provided with a fixed driving wheel and a movable driving wheel capable of longitudinally approaching and moving away from the fixed driving wheel; the movable driving wheel is always in abutment with the fixed driving wheel in a non-working state.

[0010] Preferably, the guiding module further comprises a sliding block capable of guiding the guiding rod to horizontally approach or move away from the telescopic module and an adjusting knob capable of longitudinally adjusting the limiting height of the second limiting rod.

[0011] Preferably, the driving module is further provided with a torsional spring capable of always driving the push chuck to rotate counterclockwise, a linear driver capable of driving the push chuck to axially reciprocate along the axis of the sausage tube, and a release unit capable of driving the push chuck to rotate counterclockwise.

[0012] Preferably, the detection module further comprises a controller capable of supplying gas to the air guide tube and monitoring the air pressure in real time.

[0013] An automatic telescopic casing method of sausage, applied to an automatic telescopic casing device of sausage, comprising the following steps:

[0014] S1: coaxially arranging the sausage tube outside the first limiting rod, and rotating the sausage tube between the fixed driving wheel and the movable driving wheel to ensure that the sausage tube is in a telescopic position, and pre-telescoping the casing at one end of the sausage tube;

[0015] S2: connecting an external power supply to drive the rotary driver to rotate, drive the fixed driving wheel and the movable driving wheel to rotate, and drive the casing outside the sausage tube to be telescoped along the sausage tube under the action of friction;

[0016] S3: when it is necessary to perform telescoping of the casing in stages, the release unit is actuated to control the push chuck to rotate to a standby state, and then the linear driver is driven to move the push chuck axially; after reaching a predetermined stroke, the release unit is released, so that the push chuck is reset under the action of the torsional spring and contacts the casing, and finally the linear driver is continuously driven to act, so that the casing is clamped and pushed in stages, thereby completing the automatic telescoping.

[0017] S4: The controller continuously supplies air to the area between the enema tube and the guide rod through the air guide pipe, forms an inflated section inside the casing, keeps the casing taut during the stacking process, and automatically corrects the posture to avoid twisting, wrinkling, or winding;

[0018] S5: By rotating the adjustment knob provided at the bottom of the sliding block, the distance between the guide rod and the second limiting rod is adjusted to adapt to the passing gap of casings of different specifications, ensuring that the casing is controlled and stable during transportation and stacking.

[0019] S6: The controller detects the output pressure of the air guide pipe in real time, identifies whether the casing is damaged or leaks when the pressure fluctuates abnormally, and issues a warning or stops operation, thereby ensuring product quality.

[0020] The beneficial effects of the present application compared to the prior art are:

[0021] 1. The present application realizes full-automatic operation of casing from sleeving to section-by-section stacking through the cooperation of the rotary driver, the push chuck, and the linear driver, combined with the guiding function of the first limiting rod and the guide rod.

[0022] 2. The present application forms an inflated section between the enema tube and the guide rod through the air guide pipe, so that the casing always remains taut during the stacking process, avoiding problems such as twisting, wrinkling, or deviation, and ensuring uniform stacking of the sleeved and shrunk casing.

[0023] 3. The present application can monitor the air tightness of the casing in real time during the air supply correction process through the controller combined with air pressure sensing detection, and can feedback or stop operation in time once damage or leakage is found, thereby eliminating unqualified casings from the source and ensuring product quality.

[0024] 4. The present application realizes phased clamping and pushing through the cooperation of the push chuck, the torsional spring, and the release unit, effectively solving the problem of slipping or uneven stacking that easily occurs in traditional continuous friction driving, and further improving the stability of stacking. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of an automatic stacking equipment for sausage sleeving casing.

[0026] Figure 2 It is a first side view of an automatic stacking equipment for sausage sleeving casing.

[0027] Figure 3 It is Figure 2 the A partial enlarged view of

[0028] Figure 4 It is a front view of an automatic stacking equipment for sausage sleeving casing.

[0029] Figure 5It is a kind of automatic stacking equipment of sausage shrinkable casing guide module part structure exploded perspective view.

[0030] Figure 6 It is a kind of automatic stacking equipment of sausage shrinkable casing stacking module part structure exploded perspective view.

[0031] Figure 7 It is a kind of automatic stacking equipment of sausage shrinkable casing second side view.

[0032] Figure 8 It is Figure 7 B-B cross section view.

[0033] Figure 9 It is Figure 8 C local enlarged view.

[0034] Figure 10 It is a kind of automatic stacking equipment of sausage shrinkable casing drive module perspective view.

[0035] Figure mark is:

[0036] 1, stacking module; 11, sausage tube; 12, first limiting rod; 121, sealing sleeve plug; 13, drive unit; 131, fixed drive wheel; 132, movable drive wheel; 14, shell; 15, limiting seat;

[0037] 2, guide module; 21, guide rod; 22, second limiting rod; 23, adjusting knob; 24, slide rail; 25, mounting frame; 26, sliding block;

[0038] 3, drive module; 31, push chuck; 32, torsional spring; 33, linear drive; 34, release unit;

[0039] 4, detection module; 41, air duct; 42, controller. DETAILED DESCRIPTION

[0040] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0041] 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 includes: a stacking module 1, equipped with a first limiting rod 12 for securing the enema tube 11 and a drive unit 13 for driving the sausage casings to fold onto the enema tube 11; a guide module 2, fixedly disposed on one side of the stacking module 1 and located near the end of the first limiting rod 12; the guide module 2 is equipped with a guide 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 guide rod 21; a drive module 3, horizontally fixedly disposed on one side of the stacking module 1 and located above the first limiting rod 12, the drive module 3 being equipped with a pusher head 31 that can clamp 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 that can supply air toward the inside of the first limiting rod 12.

[0042] When the sausage casing needs to be folded, the enema tube 11 is first 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 sausage casing is fitted onto the outer wall of the enema tube 11, and the operator pushes the sausage casing toward the end of the enema tube 11 until the sausage casing enters the effective driving range of the drive unit 13, thereby realizing the automatic pushing of the sausage casing by the drive unit 13.

[0043] 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 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 only allows 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.

[0044] 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.

[0045] 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.

[0046] See Figure 1 , Figure 2 and Figure 6 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.

[0047] The first limiting rod 12 is 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. As the casing is 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.

[0048] 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.

[0049] 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.

[0050] By coaxially mounting 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 onto 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, thus ensuring the stability and controllability of the internal air pressure environment during gas introduction, inflation, and compression. Simultaneously, the sealing plug 121 has good wear resistance and replaceability, maintaining its sealing performance over long-term use and reducing maintenance costs.

[0051] 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.

[0052] 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 further 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.

[0053] The drive unit 13 also includes a rotary driver capable of driving the fixed drive wheel 131 and the movable drive wheel 132 to rotate synchronously toward the first limit rod 12.

[0054] 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, wrinkling or damage caused by unilateral driving, while improving the stability and accuracy of the sausage casing conveying process.

[0055] See Figure 3 and Figure 5 As 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.

[0056] The guide 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.

[0057] 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 runs longitudinally through the slider 26 and slides with it to ensure a stable relative movement relationship during adjustment. The adjusting knob 23 is rotatably located at 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 adjusting 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.

[0058] 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 counterclockwise.

[0059] The push-clamp head 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-clamp action. During phased push-clamp operations, the release unit 34 is first activated, causing the push-clamp head 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 head 31 axially towards the drive unit 13. After sliding to a predetermined stroke position, the release unit 34 releases the constraint on the push-clamp head 31. At this point, the push-clamp head 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 outside the enema tube 11 and generate 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.

[0060] 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.

[0061] See Figure 7 As shown: The detection module 4 also includes a controller 42 that can supply air to the air pipe 41 and monitor the air pressure in real time.

[0062] 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.

[0063] 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.

[0064] An automatic stacking method for sausage casings, applied to an automatic stacking device for sausage casings, includes the following steps:

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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;

[0070] 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.

[0071] This invention can not only automatically correct the torsion of sausage casings, but also automatically detect damage to sausage casings.

[0072] 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 apparatus for a sausage casing, for the purpose of casing a sausage tube (11) with a casing, characterized in that The application relates to an automatic casing folding and stacking device for sausage casing. The device comprises a folding module (1) provided with a first limiting rod (12) capable of limiting the sausage casing (11) and a driving unit (13) capable of driving the sausage casing to fold on the sausage casing (11); a guide module (2) fixedly arranged on one side of the folding module (1) and arranged at one end close to the end of the first limiting rod (12); the guide module (2) is provided with a guide rod (21) capable of horizontally approaching or moving away from the first limiting rod (12) and a second limiting rod (22) capable of longitudinally approaching or moving away from the guide rod (21); a driving module (3) horizontally fixedly arranged on one side of the folding module (1) and located above the first limiting rod (12); the driving module (3) is provided with a push clamp (31) capable of clamping the sausage casing at a distance towards the end of the first limiting rod (12); and a detection module (4) fixedly arranged on the folding module (1) and provided with a gas guide pipe (41) capable of supplying gas into the first limiting rod (12). The folding module (1) further comprises a shell (14) and a limiting seat (15) capable of horizontally limiting the first limiting rod (12) outside the shell (14). The limiting seat (15) is fixedly arranged outside the shell (14) in an inclined state. The driving unit (13) is fixedly arranged in the shell (14).

2. The automatic stacking apparatus for the casing of the sausage according to claim 1, characterized in that, The first limiting rod (12) is rotationally arranged on the limiting seat (15) in a horizontal state. The first limiting rod (12) is coaxially provided with a sealing sleeve (121) capable of realizing real-time sealing between the first limiting rod (12) and the sausage casing (11). The sealing sleeve (121) is coaxially fixedly arranged outside the first limiting rod (12) and close to the rear end of the first limiting rod (12). The driving unit (13) is provided with a fixed driving wheel (131) and a movable driving wheel (132) capable of longitudinally approaching and moving away from the fixed driving wheel (131); and the movable driving wheel (132) is always in abutment with the fixed driving wheel (131) in a non-working state.

3. An apparatus for automatically stacking a plurality of sausage casings according to claim 2, wherein The guide module (2) further comprises a sliding block (26) capable of guiding the guide rod (21) to horizontally approach or move away from the folding module (1) and an adjusting knob (23) capable of longitudinally adjusting the limiting height of the second limiting rod (22). The driving module (3) is further provided with a torsional spring (32) capable of always driving the push clamp (31) to rotate counterclockwise, a linear driver (33) capable of driving the push clamp (31) to axially reciprocate along the axis of the sausage casing (11) and a release unit (34) capable of driving the push clamp (31) to rotate counterclockwise.

4. The automatic stacker for the casing of the sausage according to claim 1, wherein The detection module (4) further comprises a controller (42) capable of supplying gas into the gas guide pipe (41) and realizing real-time monitoring of the gas pressure.

5. The automatic stacker for the casing of the sausage according to claim 1, wherein 8. An automatic casing folding and stacking method for sausage casing, applied to the automatic casing folding and stacking device according to any one of claims 1-7 and comprising the following steps:

6. The automatic stacker for the casing of the sausage according to claim 1, wherein ​ 7. The automatic stacker for the casing of the sausage according to claim 1, characterized in that, ​ ​ S1: The sausage casing (11) is coaxially sleeved outside the first limiting rod (12), and the sausage casing (11) is rotated and placed between the fixed driving wheel (131) and the movable driving wheel (132), ensuring that the sausage casing (11) is in a waiting stacking position, and one end of the casing is pre-sleeved at the front end of the sausage casing (11); S2: Access to external power supply, drive the rotary driver to act, drive the fixed driving wheel (131) and the movable driving wheel (132) to rotate, so that the casing outside the sausage casing (11) is driven and stacked in the direction of the sausage casing (11) under the action of friction; S3: When the casing needs to be stacked in stages, the release unit (34) is actuated to control the push collet (31) to rotate to the standby state, and then the linear driver (33) is driven to move the push collet (31) in the axial direction; After reaching the predetermined stroke, the release unit (34) is released, so that the push collet (31) is reset under the action of the torsional spring (32) and contacts the casing, and finally the linear driver (33) is continuously driven to act, realizing the step-by-step clamping and pushing of the casing, thereby completing the automatic shrinkage; S4: The controller (42) continuously supplies gas to the area between the sausage casing (11) and the guide rod (21) through the air guide pipe (41), forming an inflated section inside the casing, so that the casing remains tensioned and automatically corrects its posture during the stacking process, avoiding twisting, wrinkling or winding; S5: Adjust the spacing between the guide rod (21) and the second limiting rod (22) by rotating the adjustment knob (23) provided at the bottom of the sliding block (26) to adapt to the passing gap of casings of different specifications, ensuring that the casing is controlled and stable during transportation and stacking; S6: The controller (42) detects the output pressure of the air guide pipe (41) in real time, and when the pressure fluctuates abnormally, it identifies whether the casing is damaged or leaking, and issues a warning or stops operation, thereby ensuring product quality.

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