Cellulose casing strength detection device

Abstract

The invention relates to the technical field of detection devices, and discloses a cellulose casing strength detection device which comprises a machine table, a stretching column is fixedly mounted at the top of the machine table, a tester is in transmission connection with the stretching column, a clamp seat is hung at the bottom of the tester, and a bottom clamp is fixedly mounted at the top of the machine table close to the stretching column. A sliding sleeve is hung on the clamp base, a gas passing cover is fixedly connected to the bottom of the sliding sleeve, an anastomosis table is fixedly installed at the bottom of the gas passing cover, a plurality of fixing pieces are annularly installed on the outer ring of the bottom of the anastomosis table at equal intervals, a connecting rod is connected to each fixing piece in a sliding mode, and a second spring is connected to each connecting rod in a sleeving mode; the cellulose casing strength detection device can detect a plurality of groups of data generated by tensile force in the process of expanding the capacity, increasing and reducing the simulated casing, and can reduce the inconvenience of tensile force output of the whole casing due to adhesion of partial parts after the casing is soaked in water, so that the data detection error of the casing is reduced, and the detection result is accurate.

Description

Technical Field

[0001] This invention relates to the field of testing device technology, specifically to a cellulose casing strength testing device. Background Technology

[0002] Cellulose casings are artificial casings made from plant fibers such as cotton linters, wood fibers, and flax, as well as cellulose viscose. They are tough, breathable, and thermally stable, inedible, and do not shrink with the meat filling. They are suitable as inedible packaging materials for smoked and grilled products such as sausages and hams, and can be directly smoked while moist. Their production uses the viscose method or NMMO process, forming a seamless tubular film through extrusion coagulation, washing, and plasticizing.

[0003] After the cellulose casing is formed, it is necessary to conduct a tensile test to assess its strength and ensure its service life and capacity limit. The existing testing method is to put the cellulose casing into a tensile testing machine for testing. Before the test, the casing needs to be immersed in water to ensure the toughness of the casing surface.

[0004] Current tensile testing machines include a base and a test frame. The test frame is equipped with a fixed clamping block and a clamping block that can move up and down along the test frame. The two ends of the film are fixed by the two clamping blocks, and then the film is subjected to tensile force by slowly moving the movable clamping block. Finally, the test data is detected by a mechanical sensor.

[0005] However, during the experiment, various factors may cause the test results to fall short of expectations. For example, after soaking in water, the film may stick together at a certain point, and the test may be conducted directly before the tubular film is fully unfolded. This makes the test process relatively simple and makes it impossible to statistically analyze the diverse data, resulting in deviations in the test results. Alternatively, the film itself may have some minor cracks that the staff may not notice, which may cause the film to break prematurely when stretched. All of these factors will affect the test results. To address this, we propose a cellulose casing strength testing device. Summary of the Invention

[0006] The purpose of this invention is to provide a cellulose casing strength testing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cellulose casing strength testing device, comprising a machine base, a tension column fixedly installed on the top of the machine base, a testing instrument drivenly connected to the tension column, a clamp seat suspended at the bottom of the testing instrument, a bottom clamp fixedly installed on the top of the machine base near the tension column, a sliding sleeve suspended on the clamp seat, an air hood fixedly connected to the bottom of the sliding sleeve, an anastomosis platform fixedly installed at the bottom of the air hood, and multiple fixing plates equidistantly installed in a ring around the bottom outer circumference of the anastomosis platform, each fixing plate being slidably connected to a connecting rod. The connecting rod is fitted with a second spring. One end of the connecting rod is fixedly connected to an expansion bar. The inner ring of the sliding sleeve is rotatably connected to a rotating rod. The rotating rod has a thread inside. A limit block is fixedly installed inside the air hood. A second threaded rod is threadedly connected inside the rotating rod. The second threaded rod and the limit block are slidably connected. A driving ball is fixedly connected to the bottom of the second threaded rod. A pair of cylinders are suspended from the top of the clamp seat. A pressure plate is fixedly installed at the bottom of the cylinders. An air cylinder is fixedly connected to the top of the pressure plate. The air cylinder and the sliding sleeve are slidably connected together.

[0008] Preferably, a sealing ring is fixedly connected to the bottom of the pressure plate, and a groove matching the sealing ring is provided on the top of the mating platform.

[0009] Preferably, the bottom clamp includes a lower platform disposed on the machine base. An abutment post is fixedly installed in the middle of the lower platform. A plurality of first springs are fixedly connected inside the abutment post. A ball is fixedly connected to one end of each first spring. The ball and the abutment post are slidably connected. A plurality of first threaded rods are threadedly connected to the lower platform. A pressure ring is rotatably connected to one end of each first threaded rod. The plurality of pressure rings surround the abutment post to form a circle and rest against the lower platform.

[0010] Preferably, a retaining ring is rotatably connected to the bottom of the fixture base, a second gear is fixedly connected to the outer ring of the retaining ring, a deflector is rotatably connected to the second gear, a plug rod is rotatably connected to the deflector, a triangular limiting ring is fixedly installed on the inner ring of the second gear, the middle of the triangular limiting ring extends outward to fix with the outer ring of the plug rod, the deflector is slidably connected to the lower platform, a motor is fixedly connected to the fixture base, a first gear is sleeved on the output shaft of the motor, the first gear and the second gear mesh and drive together, a top plate is fixedly installed on the top of the plug rod, and a displacement sensor is suspended on one side of the top plate.

[0011] Preferably, a protective cover is fixedly installed on the clamp seat.

[0012] Preferably, a sliding rod is suspended on the other side of the bottom of the top plate, and a slider is fixedly connected to the bottom of the sliding rod. The outer ring of the pressure plate has a groove for sliding with the slider. A pair of correction blocks are fixedly connected to the bottom of the slider, and one end of the correction block abuts against the sealing ring.

[0013] Preferably, the bottom of the anastomosis stage is slidably connected to multiple magnets, the anastomosis stage is made of metal, and the magnets are fixed together by magnetic attraction.

[0014] Preferably, a limiting plate is suspended at the top of the tension column, and the limiting plate and the testing instrument are electrically connected together.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In this invention, the end of the sausage casing is fixed above the anastomosis table. One end of the sausage casing above the anastomosis table is briefly opened. Then, a rotating rod is manually rotated above the clamp seat. During the rotation, the rotating rod drives the second threaded rod to descend. As the second threaded rod descends, the driving ball descends and contacts the ball part located at one end of multiple connecting rods. As the driving ball contacts one end of the connecting rod, the second spring is compressed, causing multiple expansion strips to move away from the outer ring of the anastomosis table. This causes the cross-sectional area of ​​the sausage casing end face to gradually expand on the anastomosis table. This not only allows the device to detect multiple sets of data generated by the tension during the expansion and contraction of the sausage casing, but also reduces the inconvenience of partial adhesion after the sausage casing is soaked in water, which makes it difficult to output tension for the entire sausage casing. This reduces the data detection error of the sausage casing and improves the accuracy of the detection results.

[0017] In this invention, the first gear drives the second gear to rotate. During the rotation of the second gear, the swaying leaf moves around the anastomosis stage, causing air leakage if a crack or damage occurs in any part of the casing. As the swaying leaf moves around the anastomosis stage, it is affected by wind, causing swaying on the insertion rod. Based on the information received by the displacement sensor, it can be quickly determined that there is longitudinal damage to the outer ring of the casing, allowing the sample to be recycled and discarded. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point C;

[0022] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B;

[0023] Figure 6 This is a schematic diagram of the air cylinder and pressure plate structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the anastomosis stage of the present invention;

[0025] Figure 8 This is a schematic diagram of the insert rod, the tilting page, and the slider structure of the present invention.

[0026] In the diagram: 1-Machine base; 2-Tension column; 3-Limiting plate; 4-Tester; 5-Clamp seat; 6-Bottom clamp; 7-Motor; 8-First gear; 9-Guard cover; 10-Second gear; 1001-Triangular limiting ring; 11-Air cylinder; 12-Cylinder; 13-Oscillating blade; 14-Pressure plate; 15-Matching platform; 16-Air hood; 1601-Limiting block; 17-Slide rod; 18-Lower platform; 19-First threaded rod; 20-Pressure ring; 21-Ball bearing; 22-First spring; 23-Guard ring; 24-Slide sleeve; 25-Rotating rod; 26-Second threaded rod; 27-Drive ball; 28-Sealing ring; 29-Fixing plate; 30-Connecting rod; 31-Expansion strip; 32-Second spring; 33-Insertion rod; 34-Displacement sensor; 35-Slider; 36-Correction block; 37-Magnet. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-8This invention provides a technical solution: a cellulose casing strength testing device, comprising a machine base 1, a tension column 2 fixedly mounted on the top of the machine base 1, a testing instrument 4 drivenly connected to the tension column 2, a clamp seat 5 suspended at the bottom of the testing instrument 4, a bottom clamp 6 fixedly mounted on the top of the machine base 1 near the tension column 2, a sliding sleeve 24 suspended on the clamp seat 5, an air hood 16 fixedly connected to the bottom of the sliding sleeve 24, an anastomosis platform 15 fixedly mounted at the bottom of the air hood 16, and multiple fixed... Fixed plate 29, each fixed plate 29 is slidably connected to a connecting rod 30, the connecting rod 30 is sleeved with a second spring 32, one end of the connecting rod 30 is fixedly connected to an expansion strip 31, the inner ring of the sliding sleeve 24 is rotatably connected to a rotating rod 25, the rotating rod 25 is threaded inside, a limit block 1601 is fixedly installed inside the air hood 16, the rotating rod 25 is threadedly connected to a second threaded rod 26, the second threaded rod 26 and the limit block 1601 are slidably connected, and a driving ball 27 is fixedly connected to the bottom of the second threaded rod 26;A pair of cylinders 12 are suspended from the top of the clamp seat 5. A pressure plate 14 is fixedly installed at the bottom of the cylinder 12. An air cylinder 11 is fixedly connected to the top of the pressure plate 14. The air cylinder 11 and the sliding sleeve 24 are slidably connected together. The tester 4 has a tensile force detection sensor (an existing component, which does not need to be described in detail). At the beginning of the experiment, the cellulose casing can be cut manually. Then, one end of the cellulose casing is placed on the bottom clamp 6, and the other end is held by hand and placed on the clamp seat 5. During the process of placing the top of the cellulose casing on the clamp seat 5, the cellulose casing is opened by hand and passed through the anastomosis table 15. The inner ring of the cellulose casing passes through the side of the expansion strip 31, and then slides upward along the side of the expansion strip 31 so that the end of the cellulose casing passes through the outer ring of the anastomosis table 15. Then, the casing is placed above the anastomosis table 15 by hand. Two cylinders 12 are simultaneously lowered from the back end, symmetrically positioned above the pressure plate 14, allowing the pressure plate 14 to descend stably and fix the end of the casing above the anastomosis table 15. At this point, an opening is created at one end of the casing above the anastomosis table 15. Then, a manual rotation of the rotating rod 25 above the clamp seat 5 drives the second threaded rod 26 to descend. As the second threaded rod 26 descends, the driving ball 27 descends, contacting the spherical portion at one end of the multiple connecting rods 30. As the driving ball 27 contacts the end of the connecting rod 30, the second spring 32 compresses, causing the multiple expansion bars 31 to move away from the outer ring of the anastomosis table 15. This gradually expands the cross-sectional area of ​​the casing end face on the anastomosis table 15. According to σ = Fb / So can be used to calculate the tensile strength of the sausage casing. This not only allows the device to detect multiple sets of data on the tensile force generated during the expansion and contraction of the casing, but also reduces the difficulty of tensile force output across the entire casing due to adhesion issues after water immersion, thereby reducing data detection errors and ensuring accurate results.

[0029] Furthermore, a sealing ring 28 is fixedly connected to the bottom of the pressure plate 14, and a groove matching the sealing ring 28 is opened on the top of the anastomosis table 15. When the cylinder 12 descends, it can drive the pressure plate 14 to descend synchronously. During the descent of the pressure plate 14, the pressure plate 14 also drives the air cylinder 11 to descend. The air cylinder 11 and the sliding sleeve 24 are slidably connected, so that one end of the casing is in the groove above the anastomosis table 15 and is squeezed by the sealing ring 28, thereby fixing the upper end of the casing and initially completing the casing fixing work.

[0030] Furthermore, the bottom clamp 6 includes a lower platform 18 mounted on the machine base 1. A retaining post is fixedly installed in the center of the lower platform 18. Multiple first springs 22 are fixedly connected inside the retaining post. A ball bearing 21 is fixedly connected to one end of each first spring 22. The ball bearing 21 and the retaining post are slidably connected. Multiple first threaded rods 19 are threadedly connected to the lower platform 18. A pressure ring 20 is rotatably connected to one end of each first threaded rod 19. The multiple pressure rings 20 surround the retaining post to form a circle and rest against the lower platform. On the platform 18, after the upper end of the casing is fixed, the lower end of the casing is manually put onto the abutment post. Then, each of the first threaded rods 19 is rotated around the platform 18. As one end of the multiple first threaded rods 19 rotates on the platform 18 toward the abutment post, the pressure ring 20 contacts the lower end of the casing, thereby pressing the casing tightly. During the pressing process of the pressure ring 20, the ball 21 retracts into the abutment post, the first spring 22 yields, and the locking ability of the lower end of the casing is improved.

[0031] Furthermore, a retaining ring 23 is rotatably connected to the bottom of the clamp base 5, and a second gear 10 is fixedly connected to the outer ring of the retaining ring 23. A deflecting blade 13 is rotatably connected to the second gear 10, and an insert rod 33 is rotatably connected to the deflecting blade 13. The bottom of the insert rod 33 is slidably connected to the lower platform 18. A motor 7 is fixedly connected to the clamp base 5, and a first gear 8 is sleeved on the output shaft of the motor 7. The first gear 8 and the second gear 10 mesh and drive together. A top plate is fixedly installed on the top of the insert rod 33, and one side of the top plate is suspended... A displacement sensor 34 is provided; a protective cover 9 is fixedly installed on the clamp seat 5; when the sealing ring 28 and the top groove of the matching table 15 are aligned, when testing the strength of the casing, the air pump connected to the external of the driving air cylinder 11 introduces gas into the air cylinder 11, allowing the gas to flow through the air cylinder 11 and then through the air hood 16, thus injecting gas into the casing, thereby causing the casing to inflate and expand. During the expansion of the casing, the problem of internal adhesion is solved, and the tester 4 rises up, allowing the tester 4 to test the data of the casing at different stages of cross-sectional area.

[0032] When the casing expands, the back-end system should immediately drive the motor 7 to rotate. During the rotation of the motor 7, the first gear 8 rotates, which in turn drives the second gear 10 to rotate. During the rotation of the second gear 10, the insertion rod 33 moves around the anastomosis stage 15 via the triangular limiting ring 1001. If a crack or damage occurs in a certain part of the casing, air leakage will inevitably occur. During the movement of the swaying page 13 around the anastomosis stage 15 by the insertion rod 33, it will inevitably be affected by wind force, causing the swaying page 13 to sway on the insertion rod 33. After receiving information from the displacement sensor 34 (a non-contact existing component, the swaying page 13 has an element that senses the displacement sensor 34, which will not be described in detail), it can be quickly determined that there is longitudinal damage to the outer ring of the casing. The sample can then be recycled and discarded, and a new casing can be replaced.

[0033] It is worth mentioning that when the rotating rod 25 is manually rotated to change the cross-sectional size of the casing, the gas supply stops. Therefore, the gas needs to be supplied in a measured amount to prevent the casing from bursting due to excessive gas supply.

[0034] Furthermore, a sliding rod 17 is suspended on the other side of the bottom of the top plate. A slider 35 is fixedly connected to the bottom of the sliding rod 17. The outer ring of the pressure plate 14 has a slot that cooperates with the slider 35 for sliding. A pair of correction blocks 36 are fixedly connected to the bottom of the slider 35. One end of the correction block 36 abuts against the sealing ring 28. In order to ensure that the swaying leaf 13 and the insertion rod 33 avoid swaying during their circular motion, the slider 35 slides synchronously on the pressure plate 14, so that the sliding rod 17 drives the top plate to move synchronously with the insertion rod 33 throughout the process. This allows the swaying leaf 13 to move around the casing. At the same time, the correction block 36 is in constant contact with the sealing ring 28 as the slider 35 moves, preventing the sealing ring 28 from deforming after being squeezed, which would worsen the sealing effect. The correction block 36 can constantly correct the sealing ring 28, improving the airtightness during testing.

[0035] Furthermore, a plurality of magnets 37 are slidably connected to the bottom of the anastomosis table 15. The anastomosis table 15 is made of metal. The magnets 37 are fixed together by magnetic attraction. The magnets 37 are used to help stabilize the upper end of the casing, prevent the casing from falling off, and strengthen the adhesion between the anastomosis table 15 and the casing.

[0036] Furthermore, a limiting plate 3 is suspended at the top of the tensile column 2. The limiting plate 3 and the tester 4 are electrically connected together. The tester 4 has a height limit setting to prevent the tester 4 from being damaged by the instantaneous inertia after the sample is quickly torn. Therefore, the limiting plate 3 has a certain buffering effect.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cellulose casing strength testing device, comprising a machine base (1), characterized in that: A tension column (2) is fixedly installed on the top of the machine base (1). A tester (4) is connected to the tension column (2) via a transmission. A clamp seat (5) is suspended at the bottom of the tester (4). A bottom clamp (6) is fixedly installed on the top of the machine base (1) near the tension column (2). A sliding sleeve (24) is suspended on the clamp seat (5). An air hood (16) is fixedly connected to the bottom of the sliding sleeve (24). A matching platform (15) is fixedly installed at the bottom of the air hood (16). Multiple fixing plates (29) are installed in a ring at equal intervals on the outer ring of the bottom of the matching platform (15). Each fixing plate (29) A connecting rod (30) is slidably connected to the upper part of the connecting rod (30), and a second spring (32) is sleeved on the connecting rod (30). An expansion strip (31) is fixedly connected to one end of the connecting rod (30). A rotating rod (25) is rotatably connected to the inner ring of the sliding sleeve (24). The rotating rod (25) has a thread inside. A limit block (1601) is fixedly installed inside the air hood (16). A second threaded rod (26) is connected to the rotating rod (25) through a thread. The second threaded rod (26) and the limit block (1601) are slidably connected. A driving ball (27) is fixedly connected to the bottom of the second threaded rod (26). A pair of cylinders (12) are suspended on the top of the clamp seat (5). A pressure plate (14) is fixedly installed at the bottom of the cylinder (12). An air cylinder (11) is fixedly connected to the top of the pressure plate (14). The air cylinder (11) and the sliding sleeve (24) are slidably connected together.

2. The cellulose casing strength testing device according to claim 1, characterized in that: The bottom of the pressure plate (14) is fixedly connected to a sealing ring (28), and the top of the mating platform (15) is provided with a groove that matches the sealing ring (28).

3. The cellulose casing strength testing device according to claim 2, characterized in that: The bottom clamp (6) includes a lower platform (18) set on the machine base (1). A stop post is fixedly installed in the middle of the lower platform (18). A plurality of first springs (22) are fixedly connected inside the stop post. A ball (21) is fixedly connected to one end of each first spring (22). The ball (21) and the stop post are slidably connected. A plurality of first threaded rods (19) are threadedly connected to the lower platform (18). A pressure ring (20) is rotatably connected to one end of the first threaded rod (19). The plurality of pressure rings (20) surround the stop post to form a circle and rest against the lower platform (18).

4. The cellulose casing strength testing device according to claim 3, characterized in that: The bottom of the fixture seat (5) is rotatably connected to a retaining ring (23), the outer ring of the retaining ring (23) is fixedly connected to a second gear (10), the second gear (10) is rotatably connected to a deflecting blade (13), the deflecting blade (13) is rotatably connected to a plug rod (33), the inner ring of the second gear (10) is fixedly installed with a triangular limiting ring (1001), the middle part of the triangular limiting ring (1001) extends outward to be fixed with the outer ring of the plug rod (33), the deflecting blade (13) and the lower stage (18) are slidably connected, the fixture seat (5) is fixedly connected to a motor (7), the output shaft of the motor (7) is sleeved with a first gear (8), the first gear (8) and the second gear (10) mesh and drive together, the top of the plug rod (33) is fixedly installed with a top plate, and a displacement sensor (34) is suspended on one side of the top plate.

5. The cellulose casing strength testing device according to claim 1, characterized in that: A protective cover (9) is fixedly installed on the clamp seat (5).

6. The cellulose casing strength testing device according to claim 4, characterized in that: A sliding rod (17) is suspended on the other side of the bottom of the top plate. A slider (35) is fixedly connected to the bottom of the sliding rod (17). The outer ring of the pressure plate (14) has a slot for sliding with the slider (35). A pair of correction blocks (36) are fixedly connected to the bottom of the slider (35). One end of the correction block (36) abuts against the sealing ring (28).

7. The cellulose casing strength testing device according to claim 1, characterized in that: The bottom of the anastomosis stage (15) is slidably connected to multiple magnets (37). The material of the anastomosis stage (15) is made of metal. The magnets (37) are fixed together with the magnets (37) by magnetic attraction.

8. The cellulose casing strength testing device according to claim 7, characterized in that: The top of the tension column (2) is equipped with a limiting plate (3), and the limiting plate (3) and the tester (4) are electrically connected together.

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