Detection Device and Detection Method for the Shrinking Tightness of Collagen Casings

Abstract

The present invention relates to the technical field of tightness detection of sausage casings, specifically to a detection device and a detection method for the shrinkage tightness of collagen sausage casings. Socket clamping components are installed on both the fixed plate and the sliding crossbeam. The socket clamping component on the fixed plate is fixedly welded to the inner side wall of the fixed plate, and the socket clamping component on the sliding crossbeam is slidably inserted onto the fixed crossbeam through a driving pull rod. The beneficial effects are as follows: By setting the socket clamping component, the clamping and fixing of the end of the sausage casing are realized through the cooperation of the connecting ring and the pressing ring. The position of the connecting ring is advanced by the socket connection of the screw tube and the screw rod, forming a misaligned socket connection between the connecting ring and the sleeve, thereby folding and clamping the end of the sausage casing to ensure the fixed clamping of the end of the sausage casing and prevent it from falling off. At the same time, the sliding crossbeam is used to achieve rough adjustment of the stretching, and the fine adjustment of the stretching force is realized through the threaded rotation traction of the driving pull rod.

Description

Technical Field

[0001] The present invention relates to the technical field of tightness detection of sausage casings, and specifically to a detection device and a detection method for the shrinkage tightness of collagen sausage casings. Background Art

[0002] Sausage casings are livestock products scraped from the large and small intestines of livestock. They are mainly used as the outer casings for filling sausages and enema; sheep casings can also be made into gut strings for making tennis racket strings, bowstrings, and surgical sutures, etc.

[0003] When sausage casings are processed by enema, if the casings are tight after shrinkage, there will be a phenomenon of bursting during filling when customers use them. If the casings are loose after shrinkage, there will be a phenomenon of casing disconnection, reducing production efficiency.

[0004] In the existing sausage casing detection devices, due to the smooth surface of the sausage casings, it is difficult to fix the ends of the casings during the detection process, and they are prone to falling off during stretching. At the same time, when the sausage casings are subjected to extreme detection, there is a lack of a traction fine-tuning device, resulting in inaccurate detection of the extreme values. Summary of the Invention

[0005] The purpose of the present invention is to provide a detection device and a detection method for the shrinkage tightness of collagen sausage casings to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A detection device for the shrinkage tightness of collagen sausage casings, the detection device includes:

[0007] A detection frame, the detection frame is in a frame shape with one end open. A fixing plate is bolted to the open end of the detection frame. A guide rail frame is fixedly installed on the inner wall of the other end of the detection frame. A sliding crossbeam is horizontally installed on the guide rail frame, and a fixed crossbeam is fixedly connected to one side of the sliding crossbeam;

[0008] A socket clamping assembly, the socket clamping assembly is installed on both the fixing plate and the sliding crossbeam. The socket clamping assembly on the fixing plate is fixedly welded to the inner side wall of the fixing plate. The socket clamping assembly on the sliding crossbeam is slidably inserted into the fixed crossbeam through a driving pull rod;

[0009] The socket clamping assembly includes a fixed rod, a screw rod, a sleeve rod, a sleeve, and a connecting ring. One side of the fixed rod is horizontally connected to the screw rod. The end of the screw rod is horizontally and coaxially connected to the sleeve rod. The sleeve rod is fixed to the arc inner wall of the sleeve through a lining plate. The connecting ring is slidably sleeved on the sleeve rod. One side of the connecting ring is slidably inserted into the lining plate. The other side of the connecting ring is rotatably connected to a screw tube, and the screw tube is threadedly rotatably sleeved on the screw rod;

[0010] An intestinal casing, both ends of the intestinal casing are respectively sleeved on the outer walls of sleeves on a fixed plate and a sliding cross beam, the end of the intestinal casing is fixed on a connecting ring through a pressing ring, the intestinal casing is stretched by the sliding of the sliding cross beam, and the intestinal casing is finely adjusted and stretched by the lateral movement of a driving pull rod.

[0011] Preferably, a fixed block is fixedly welded on the inner side wall of the fixed plate, the fixed rod in the left socket clamping assembly is horizontally installed on the fixed block, guide grooves are arranged on the front and rear sides of the guide rail frame, sliding blocks matched with the guide grooves for sliding insertion are arranged at both ends of the sliding cross beam, a through groove is vertically arranged through the upper end of the guide groove, an extrusion jack is arranged through the sliding block, a fastening pressure rod is vertically inserted in the through groove, and the lower end of the fastening pressure rod is threadedly rotatably inserted in the extrusion jack.

[0012] Preferably, a guiding taper tube is sleeved at one end of the sleeve far away from the socket clamping assembly, the end of the sleeve is provided with a rounded corner, the outer diameter of one end of the guiding taper tube is equal to the outer diameter of the sleeve, the outer diameter of the other end of the guiding taper tube is smaller than the outer diameter of the sleeve, and two conical inclined flow guiding surfaces are arranged in the middle section of the guiding taper tube.

[0013] Preferably, a pressing groove is arranged on one side of the connecting ring, the pressing groove is annular, an external thread is arranged on one arc surface of the pressing groove, one end of the intestinal casing extends into the pressing groove, a circular pressing ring is sleeved in the pressing groove, an internal thread connected with the external thread is arranged on the pressing ring, the outer edge of the pressing ring is provided with a rounded corner for smooth pressing with the intestinal casing, four groups of through holes are arranged on the inner lining plate in a circumferential array distribution, and positioning rods sliding through the through holes are arranged on the side wall of the pressing ring.

[0014] Preferably, a rotating groove is arranged on the other side of the connecting ring, a rotating plate is arranged at the end of the screw tube and is rotatably installed in the rotating groove, a retaining ring is arranged on the outer side of the rotating plate, and the retaining ring is installed on the side wall of the connecting ring by screws.

[0015] Preferably, a through hole is arranged on the sliding cross beam, the fixed rod on the right socket clamping assembly is slidably inserted in the through hole, a limiting plate is arranged at one end of the fixed rod close to the fixed cross beam, and a concave limiting groove corresponding to the limiting plate is arranged on the sliding cross beam.

[0016] Preferably, a rotating insertion block is arranged on the limiting plate, one end of the driving pull rod is rotatably installed on the rotating insertion block through a bearing, a winding roller driven by a motor is arranged at one end of the detection frame, a connecting block is arranged at the upper end of the sliding cross beam, and a pull rope is connected between the connecting block and the winding roller. One end of the pull rope is fixed on the connecting block, and the other end of the pull rope is wound on the winding roller.

[0017] Preferably, a screw hole is transversely penetrated through the fixed cross beam, the driving pull rod is rotationally inserted into the screw hole in a transverse threaded manner, a spring is transversely sleeved on the middle section of the driving pull rod, and the spring is pressed between the limiting plate and the fixed cross beam.

[0018] Preferably, a plurality of groups of transversely extending through holes distributed in a circumferential array are arranged on the sliding cross beam, and guide posts slidably inserted into the through holes are arranged on the limiting plate.

[0019] A detection method implemented by a detection device for the shrinkage tightness of a collagen casing according to the above, the detection method comprising the following steps:

[0020] Casing socketting, the two ends of the casing are socketted through the guiding tapered tube, and then the two ends of the casing are socketted on the sleeve, and the end of the casing extends into the pressing groove and is fixed by pressing with a pressing ring;

[0021] Folding clamping, by the threaded rotation of the screw tube on the screw rod, the extension of the connecting ring is advanced, so that the connecting ring extends into the sleeve, and the arc outer wall of the connecting ring forms a folding dislocation clamping with the inner wall of the sleeve, further improving the clamping and fixing strength of the end of the casing;

[0022] Traction detection, by the transverse sliding of the sliding cross beam on the guide rail frame, the purpose of stretching the casing is achieved, and the purpose of testing the tightness of the casing is achieved;

[0023] Fine adjustment detection, when performing extreme stretching detection, it is necessary to precisely control the transverse traction force. By the transverse threaded rotation of the driving pull rod, the purpose of finely adjusting the sliding of the traction casing is achieved, and then according to the contraction length of the spring, the extreme traction force is precisely detected.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] By setting the socketting and clamping assembly, the present invention realizes the clamping and fixing of the end of the casing by the cooperation of the connecting ring and the pressing ring, and advances the position of the connecting ring by the socketting of the screw tube and the screw rod to form a misaligned socketting of the connecting ring and the sleeve, thereby folding and clamping the end of the casing, ensuring the fixed clamping of the end of the casing and preventing it from falling off. At the same time, the sliding cross beam is used to realize the rough adjustment of stretching, and the threaded rotation of the driving pull rod is used for traction to realize the fine adjustment of the stretching force. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is Figure 1 the enlarged view of the structure at A in

[0028] Figure 3 is Figure 1 the enlarged view of the structure at B in

[0029] Figure 4 Schematic three - dimensional structure diagram of the fixed rod of the present invention;

[0030] Figure 5 Schematic three - dimensional structure diagram of the assembly of the socket clamping component and the guiding cone tube of the present invention;

[0031] Figure 6 Schematic three - dimensional structure diagram of the assembly of the socket clamping component of the present invention;

[0032] Figure 7 Schematic three - dimensional structure diagram of the pressing ring of the present invention;

[0033] Figure 8 Top view of the present invention;

[0034] Figure 9 Schematic three - dimensional structure diagram of the sliding crossbeam of the present invention.

[0035] In the figure: 1, detection frame; 2, fixed plate; 3, fixed block; 4, guide rail frame; 5, sausage casing; 6, sliding crossbeam; 7, fixed crossbeam; 8, fixed rod; 9, screw; 10, sleeve rod; 11, sleeve; 12, inner lining plate; 13, guiding cone tube; 14, through hole; 15, connecting ring; 16, pressing groove; 17, retaining ring; 18, positioning rod; 19, pressing ring; 20, screw tube; 21, spring; 22, driving pull rod; 23, screw hole; 24, rotating insert block; 25, bearing; 26, limiting groove; 27, through hole; 28, guiding column; 29, internal thread; 30, rotating groove; 31, guiding groove; 32, slider; 33, winding roller; 34, pull rope; 35, through groove; 36, fastening pressure rod; 37, extrusion jack. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 7 , the present invention provides a technical solution:

[0038] Embodiment 1:

[0039] A detection device for the shrinkage tightness of a collagen sausage casing, the detection device includes a detection frame 1, a socket clamping component, and a sausage casing 5.

[0040] The detection frame 1 is in a frame shape with one end open. A fixed plate 2 is bolted to the open end of the detection frame 1. A guide rail frame 4 is fixedly installed on the inner wall at the other end of the detection frame 1. A sliding cross beam 6 is horizontally installed on the guide rail frame 4, and a fixed cross beam 7 is fixedly connected to one side of the sliding cross beam 6.

[0041] By sliding the sliding cross beam 6 on the guide rail frame 4 (the sliding drive is a common hydraulic component, pneumatic component or motor drive in the prior art and will not be elaborated), the horizontal traction of the casing 5 is realized, achieving the purpose of rough adjustment detection.

[0042] The socket clamping assembly includes a fixed rod 8, a screw rod 9, a sleeve rod 10, a sleeve 11 and a connecting ring 15. One side of the fixed rod 8 is horizontally connected to the screw rod 9. The end of the screw rod 9 is horizontally and coaxially connected to the sleeve rod 10. The sleeve rod 10 is fixed on the arc inner wall of the sleeve 11 through a lining plate 12. The connecting ring 15 is slidably sleeved on the sleeve rod 10. One side of the connecting ring 15 is slidably inserted into the lining plate 12. The other side of the connecting ring 15 is rotatably connected to a screw tube 20, and the screw tube 20 is threadedly and rotatably sleeved on the screw rod 9.

[0043] By using the socket and pushing of the screw tube 20 and the screw rod 9 to position the connecting ring 15, a misaligned socket between the connecting ring 15 and the sleeve 11 is formed, thereby folding and clamping the end of the casing 5 to ensure the fixed clamping of the end of the casing 5 and prevent it from falling off.

[0044] Both ends of the casing 5 are sleeved on the outer wall of the sleeve 11 on the fixed plate 2 and the sliding cross beam 6. The end of the casing 5 is fixed on the connecting ring 15 through a pressure ring 19. The casing 5 is stretched by the sliding of the sliding cross beam 6, and the casing 5 is finely adjusted and stretched by the lateral movement of the driving pull rod 22. Socket clamping assemblies are installed on both the fixed plate 2 and the sliding cross beam 6. The socket clamping assembly on the fixed plate 2 is fixedly welded on the inner side wall of the fixed plate 2, and the socket clamping assembly on the sliding cross beam 6 is slidably inserted into the fixed cross beam 7 through the driving pull rod 22.

[0045] By setting the cooperation between the driving pull rod 22 and the fixed cross beam 7, after the rough adjustment of the sliding cross beam 6, through the traction of the driving pull rod 22, the casing 5 is further stretched to achieve the purpose of fine adjustment of the traction force, facilitating the detection of the stretching limit value of the casing. By setting the cooperation between the connecting ring 15 and the pressure ring 19, the clamping and fixing of the end of the casing 5 are realized.

[0046] Embodiment 2:

[0047] On the basis of Embodiment 1, a fixed block 3 is fixedly welded on the inner side wall of the fixed plate 2. The fixed rod 8 in the left socket clamping assembly is horizontally installed on the fixed block 3. Guide grooves 31 are provided on the front and rear sides of the guide rail frame 4. Sliders 32 that are slidably inserted and matched with the guide grooves 31 are provided at both ends of the sliding cross beam 6. A through groove 35 is vertically provided through the upper end of the guide groove 31. An extrusion jack 37 is provided through the slider 32. A fastening pressure rod 36 is vertically inserted into the through groove 35. The lower end of the fastening pressure rod 36 is threadedly rotated and inserted into the extrusion jack 37. One end of the sleeve 11 away from the socket clamping assembly is sleeved with a guiding tapered tube 13. The end of the sleeve 11 is provided with a rounded corner. The outer diameter of one end of the guiding tapered tube 13 is equal to the outer diameter of the sleeve 11. The outer diameter of the other end of the guiding tapered tube 13 is smaller than the outer diameter of the sleeve 11. Two conical inclined guiding surfaces are provided in the middle section of the guiding tapered tube 13.

[0048] By providing the guiding tapered tube 13, the convenient socketing of both ends of the casing 5 is realized, so as to adapt to the detection of casings 5 with different calibers. By providing the cooperation of the guide groove 31 and the slider 32, the further guiding of the sliding cross beam 6 is realized. By screwing down the fastening pressure rod 36 in the extrusion jack 37, the fastening pressure rod 36 is tightly pressed against the lower inner wall of the guide groove 31, achieving the purpose of initially limiting the position of the sliding cross beam 6.

[0049] Embodiment 3:

[0050] On the basis of Embodiment 2, a pressure groove 16 is provided on one side of the connecting ring 15. The pressure groove 16 is circular. An external thread is provided on one arc surface of the pressure groove 16. One end of the casing 5 extends into the pressure groove 16. A circular pressure ring 19 is sleeved in the pressure groove 16. An internal thread 29 connected to the external thread is provided on the pressure ring 19. The outer edge of the pressure ring 19 is provided with a rounded corner that is smoothly pressed against the casing 5. Four groups of through holes 14 distributed in a circumferential array are provided on the inner lining plate 12. A positioning rod 18 that slidably penetrates through the through holes 14 is provided on the side wall of the pressure ring 19.

[0051] By providing the cooperation of the internal thread 29 and the external thread, the fixed installation of the pressure ring 19 on the connecting ring 15 is realized, and then the purpose of clamping the end of the casing 5 is achieved. By providing the cooperation of the through holes 14 and the positioning rod 18, the purpose of limiting the circumferential angle of the pressure ring 19 and the connecting ring 15 is achieved, preventing the connecting ring 15 from rotating under the threaded rotation of the screw tube 20 and causing the end of the casing 5 to be distorted.

[0052] Embodiment 4:

[0053] On the basis of Embodiment 3, a rotating groove 30 is provided on the other side of the connecting ring 15. The end of the screw tube 20 is provided with a rotating plate rotatably installed in the rotating groove 30. A retaining ring 17 is provided on the outside of the rotating plate. The retaining ring 17 is installed on the side wall of the connecting ring 15 by screws.

[0054] The rotational installation of the end of the solenoid 20 is achieved by setting the rotating groove 30, and the rotational installation of the solenoid 20 on the connecting ring 15 is achieved by setting the retaining ring 17.

[0055] Embodiment 5:

[0056] Based on Embodiment 4, the sliding crossbeam 6 is provided with a through jack, and the fixing rod 8 on the right-side socket clamping assembly is slidably inserted into the jack. A limiting plate is provided at one end of the fixing rod 8 close to the fixing crossbeam 7, and a concave limiting groove 26 corresponding to the limiting plate is provided on the sliding crossbeam 6.

[0057] By setting the cooperation between the limiting groove 26 and the limiting plate, the position of the fixing rod 8 on the sliding crossbeam 6 is limited.

[0058] A rotating insertion block 24 is provided on the limiting plate. One end of the driving pull rod 22 is rotatably installed on the rotating insertion block 24 through a bearing 25. One end of the detection frame 1 is provided with a winding roller 33 driven by a motor. A connecting block is provided at the upper end of the sliding crossbeam 6, and the connecting block and the winding roller 33 are connected by a pull rope 34. One end of the pull rope 34 is fixed to the connecting block, and the other end of the pull rope 34 is wound on the winding roller 33.

[0059] The rotational installation of the driving pull rod 22 is achieved by setting the rotating insertion block 24, and the traction drive of the sliding crossbeam 6 is achieved by setting the cooperation between the winding roller 33 and the pull rope 34.

[0060] A threaded hole 23 is horizontally penetrated on the fixing crossbeam 7, and the driving pull rod 22 is horizontally threadedly rotated and inserted into the threaded hole 23. A spring 21 is horizontally sleeved on the middle section of the driving pull rod 22, and the spring 21 is pressed between the limiting plate and the fixing crossbeam 7.

[0061] The threaded rotation traction of the driving pull rod 22 is achieved by setting the threaded hole 23, and the elastic extrusion is achieved by setting the spring 21, which is convenient for calculating the traction force.

[0062] The sliding crossbeam 6 is provided with a plurality of groups of horizontally extending through holes 27 distributed in a circumferential array, and a guiding column 28 slidably inserted into the through holes 27 is provided on the limiting plate.

[0063] By setting the cooperation between the through holes 27 and the guiding column 28, the purpose of fixing the circumferential angle of the limiting plate is achieved, avoiding the driving pull rod 22 from pulling the limiting plate to rotate, and improving the clamping stability of the end of the casing 5.

[0064] A detection method implemented by a detection device for the shrinkage tightness of a collagen casing according to the above, the detection method comprising the following steps:

[0065] Casing socketing: The two ends of the casing 5 are socketed through the guiding conical tube 13, and then the two ends of the casing 5 are socketed on the sleeve 11. The end of the casing 5 extends into the pressing groove 16 and is fixed by squeezing with the pressing ring 19.

[0066] Folding clamping: By the threaded rotation of the screw tube 20 on the screw rod 9, the extension of the connecting ring 15 is advanced, so that the connecting ring 15 extends into the sleeve 11, and the arc outer wall of the connecting ring 15 forms a folding dislocation clamping with the inner wall of the sleeve 11, further improving the clamping and fixing strength of the end of the casing 5.

[0067] Traction detection: By the lateral sliding of the sliding cross beam 6 on the guide rail frame 4, the purpose of stretching the casing 5 is achieved, and the purpose of testing the tightness of the casing 5 is achieved.

[0068] Fine adjustment detection: When performing extreme stretching detection, it is necessary to precisely control the lateral traction force. By the lateral threaded rotation of the driving pull rod 22, the purpose of finely adjusting the sliding of the casing 5 is achieved, and then according to the contraction length of the spring 21, the extreme traction force is precisely detected.

[0069] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Detection device for shrinkage tightness of collagen casing, characterized in that: The detection device includes: A detection frame (1), the detection frame (1) is in a frame shape with one end open, the open end of the detection frame (1) is bolted with a fixing plate (2), and a guide rail frame (4) is fixedly installed on the inner wall at the other end of the detection frame (1). A sliding cross beam (6) is horizontally installed on the guide rail frame (4), and a fixed cross beam (7) is fixedly connected to one side of the sliding cross beam (6); A socket clamping assembly, the socket clamping assembly is installed on both the fixing plate (2) and the sliding cross beam (6). The socket clamping assembly on the fixing plate (2) is fixedly welded to the inner side wall of the fixing plate (2), and the socket clamping assembly on the sliding cross beam (6) is slidably inserted onto the fixed cross beam (7) through a driving pull rod (22); The socket clamping assembly includes a fixed rod (8), a screw rod (9), a sleeve rod (10), a sleeve (11) and a connecting ring (15). A screw rod (9) is horizontally connected to one side of the fixed rod (8), and the end of the screw rod (9) is horizontally and coaxially connected to the sleeve rod (10). The sleeve rod (10) is fixed on the arc inner wall of the sleeve (11) through an inner lining plate (12). The connecting ring (15) is slidably sleeved on the sleeve rod (10), one side of the connecting ring (15) is slidably inserted onto the inner lining plate (12), and a screw tube (20) is rotatably connected to the other side of the connecting ring (15). The screw tube (20) is threadedly rotatably sleeved on the screw rod (9); A casing (5), both ends of the casing (5) are sleeved on the outer wall of the sleeve (11) on the fixing plate (2) and the sliding cross beam (6) respectively. The end of the casing (5) is fixed on the connecting ring (15) through a pressing ring (19). The casing (5) is stretched by the sliding of the sliding cross beam (6), and the casing (5) is finely adjusted and stretched by the lateral movement of the driving pull rod (22).

2. The detecting device for the shrinkage tightness of the collagen casing according to claim 1, wherein: A fixed block (3) is fixedly welded to the inner side wall of the fixing plate (2). The fixed rod (8) in the left socket clamping assembly is horizontally installed on the fixed block (3). Guide grooves (31) are provided on the front and rear sides of the guide rail frame (4). Sliders (32) that are slidably inserted and matched with the guide grooves (31) are provided at both ends of the sliding cross beam (6). A through groove (35) is vertically provided through the upper end of the guide groove (31). An extrusion jack (37) is provided through the slider (32). A fastening pressure rod (36) is vertically inserted into the through groove (35). The lower end of the fastening pressure rod (36) is threadedly rotatably inserted into the extrusion jack (37).

3. The detecting device for the shrinkage tightness of the collagen casing according to claim 2, wherein: A guide cone tube (13) is sleeved on the end of the sleeve (11) away from the socket clamping assembly. The end of the sleeve (11) is set to be rounded. The outer diameter of one end of the guide cone tube (13) is equal to the outer diameter of the sleeve (11), the outer diameter of the other end of the guide cone tube (13) is smaller than the outer diameter of the sleeve (11), and two conical inclined flow guiding surfaces are provided in the middle section of the guide cone tube (13).

4. The detecting device for the shrinkage tightness of the collagen casing according to claim 3, wherein: On one side of the connecting ring (15), a pressing groove (16) is provided. The pressing groove (16) is annular. An external thread is provided on the arc surface on one side of the pressing groove (16). One end of the casing (5) extends into the pressing groove (16). A circular pressing ring (19) is sleeved in the pressing groove (16). An internal thread (29) connected to the external thread is provided on the pressing ring (19). The outer edge of the pressing ring (19) is provided with a rounded corner that smoothly presses against the casing (5). Four groups of through holes (14) distributed in a circumferential array are provided on the inner lining plate (12). A positioning rod (18) that slides through the through hole (14) is provided on the side wall of the pressing ring (19).

5. The detecting device for the shrinkage tightness of the collagen casing according to claim 4, wherein: On the other side of the connecting ring (15), a rotating groove (30) is provided. The end of the screw tube (20) is provided with a rotating plate rotatably installed in the rotating groove (30). A retaining ring (17) is provided on the outer side of the rotating plate. The retaining ring (17) is installed on the side wall of the connecting ring (15) by screws.

6. The detecting device for the shrinkage tightness of the collagen casing according to claim 5, wherein: A through jack is provided on the sliding cross beam (6). The fixing rod (8) on the right socket clamping assembly is slidably inserted into the jack. A limiting plate is provided at one end of the fixing rod (8) close to the fixed cross beam (7). A concave limiting groove (26) corresponding to the limiting plate is provided on the sliding cross beam (6).

7. The detecting device for the shrinkage tightness of the collagen casing according to claim 6, characterized in that: A rotating insertion block (24) is provided on the limiting plate. One end of the driving pull rod (22) is rotatably installed on the rotating insertion block (24) through a bearing (25). One end of the detection frame (1) is provided with a winding roller (33) driven by a motor. A connecting block is provided at the upper end of the sliding cross beam (6). The connecting block and the winding roller (33) are connected by a pull rope (34). One end of the pull rope (34) is fixed to the connecting block, and the other end of the pull rope (34) is wound on the winding roller (33).

8. The detecting device for the shrinkage tightness of the collagen casing according to claim 7, wherein: A screw hole (23) is horizontally penetrated on the fixed cross beam (7). The driving pull rod (22) is horizontally threadedly inserted into the screw hole (23). A spring (21) is horizontally sleeved on the middle section of the driving pull rod (22). The spring (21) is pressed between the limiting plate and the fixed cross beam (7).

9. The detecting device for the shrinkage tightness of the collagen casing according to claim 8, wherein: A plurality of groups of laterally extending through holes (27) distributed in a circumferential array are provided on the sliding cross beam (6). A guide post (28) that is slidably inserted into the through hole (27) is provided on the limiting plate.

10. A detection method implemented by the detection device for the shrinkage tightness of the collagen casing according to claim 9, characterized in that: The detection method includes the following steps: Casing sleeving: The two ends of the casing (5) are sleeved through the guiding tapered tube (13), and then the two ends of the casing (5) are sleeved on the sleeve (11). One end of the casing (5) extends into the pressing groove (16) and is fixed by pressing with the pressing ring (19). Folding clamping: By the threaded rotation of the screw tube (20) on the screw rod (9), the extension of the connecting ring (15) is advanced, so that the connecting ring (15) extends into the sleeve (11), and the arc outer wall of the connecting ring (15) forms a folding dislocation clamping with the inner wall of the sleeve (11), further improving the clamping and fixing strength of the end of the casing (5). Traction detection: By the lateral sliding of the sliding cross beam (6) on the guide rail frame (4), the purpose of stretching the casing (5) is achieved, and the purpose of testing the tightness of the casing (5) is achieved. Fine adjustment detection. When performing extreme tensile detection, it is necessary to precisely control the lateral traction force. By rotating the lateral thread of the driving rod (22), the purpose of finely adjusting the sliding of the casing (5) is achieved. Furthermore, according to the contraction length of the spring (21), the extreme traction force is precisely detected.

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