Industrial filament dry heat shrinkage rate tester

Abstract

The invention discloses an industrial filament dry heat shrinkage rate tester, and belongs to the technical field of textile testing. The device mainly comprises a box body; the industrial filament storage device comprises a storage assembly, a heating frame and a storage assembly, the storage assembly comprises a fixing plate, the fixing plate is arranged on the storage assembly, and the fixing plate and the pushed-out heating frame form a heating area for industrial filaments; the vertical plates are installed on the fixing plate, supporting columns are installed on the vertical plates, and openings are formed in the supporting columns; the air cylinders are installed in the grooves, and top plates are installed at the output ends of the air cylinders; the supporting plates are mounted on the top plate, and round rods are mounted on the supporting plates; and the at least two groups of fixing cylinders are mounted at one end of the round rod, and clamping grooves are formed in the fixing cylinders. According to the industrial filament dry heat shrinkage rate tester, through the arrangement of the storage assembly, most of filaments can be stored in a heating area before heating for subsequent heating, and the effect of increasing the heating area is achieved.

Description

Technical Field

[0001] The present application relates to the field of textile testing technology, and in particular to an industrial filament dry heat shrinkage tester. Background Art

[0002] Industrial filament is an important branch of the chemical fiber industry. It refers to continuous filament fibers produced through a spinning process. They can be monofilament or multifilament and can be up to a kilometer or even ten thousand meters in length. With its high strength, high modulus, wear resistance, and chemical corrosion resistance, it has become a core material in transportation, construction, safety protection, and other fields. During the production process of industrial filaments, dry heat shrinkage tests are required to ensure that their quality meets the specifications; For example, patent publication number CN114965552A specifically discloses a chemical fiber filament dry heat shrinkage tester and test method. The tester uses a filament hanging mechanism to hang filaments, controls a movable heating mechanism to move to the filament hanging mechanism, controls a filament heating chamber to heat the filaments, and uses an image acquisition module to respectively capture the length displacement changes of the filaments at corresponding temperatures to obtain the dry heat shrinkage rate of the filaments. However, although the above patent can realize the dry heat shrinkage test of filaments, when heating the filaments, only the part of the filaments located below the heating chamber can be heated, while the filaments hanging on one side cannot be heated, resulting in a small heating area. As a result, the shrinkage ratio of the heated part and the unheated part is inconsistent, and the actual shrinkage performance of the filaments cannot be reflected. Therefore, it is necessary to provide an industrial filament dry heat shrinkage tester to solve the above problems.

[0003] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the Invention

[0004] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide an industrial filament dry heat shrinkage tester to achieve the effect of increasing the heating area.

[0005] The technical solution adopted by the present application to solve its technical problems is: an industrial filament dry heat shrinkage tester, comprising a box body; a placement component, which is arranged on the box body, the placement component has a placement rack, and the placement rack is provided with a groove; a heating frame, which is suitable for being received inside the box body, and pushing out the box body and being located above the groove; a storage component, which is arranged on the box body, and the storage component comprises: a fixed plate, which is arranged on the placement component, and the fixed plate and the pushed-out heating frame form a heating area for the industrial filament; at least two groups of vertical plates, which are mounted on the fixed plate, and pillars are mounted on the vertical plates, and openings are provided on the pillars; two groups of cylinders, which are mounted inside the groove, and top plates are mounted on the output ends of the cylinders; at least two groups of support plates, which are mounted on the top plates, and round rods are mounted on the support plates; at least two groups of fixed cylinders, which are mounted on one end of the round rod, and slots are provided on the fixed cylinders.

[0006] Furthermore, at least two sets of driving gears are rotatably mounted on the round rod, and multiple sets of driving racks are mounted on the fixed plate, and the driving gears and the driving racks are meshed and connected.

[0007] Furthermore, a transverse plate is mounted on the driving gear, a connecting rod is mounted on the transverse plate, and a ring is mounted on the connecting rod.

[0008] Furthermore, the placement assembly includes a connecting plate installed on one side of the placement frame, a roller body is provided on the connecting plate, at least two sets of pneumatic clamps are installed at both ends of the placement frame, at least two sets of encoders are installed on the other side of the placement frame, and a rotating wheel is provided on the output end fixing sleeve of the encoder.

[0009] Furthermore, at least two sets of slides are installed on the other side of the placement rack. The slides have a vertical portion and a raised portion. The vertical portion is located below the rotating wheel, the raised portion is located on the outer ring of the rotating wheel, and a sliding groove is opened inside the slide.

[0010] Furthermore, a roller is provided inside the slide, a connecting rod is provided on the roller, a base is installed on the connecting rod, a square groove is provided through the base, a protrusion is installed on the inner wall of the square groove, a splint is provided on the protrusion for sliding, a screw is rotatably installed on the splint, and the screw thread is installed on the base.

[0011] Furthermore, a crossbeam is installed inside the box, a pad is installed on the top of the crossbeam, two sets of slide rails are installed on the pad, a slide plate is slidably provided on the slide rail, and a drive motor is installed at the bottom of the pad.

[0012] Furthermore, a driving gear is fixedly mounted on the output end of the driving motor, and a passive rack is mounted on the bottom of the slide plate, and the passive rack is meshed with the driving gear.

[0013] Furthermore, a fixed seat is installed on the skateboard, the upper end of the fixed seat is hinged to the heating frame, the heating frame is composed of at least two groups of plates, and a graphene electric heating plate is provided inside the heating frame, which is connected to an external power supply. A baffle is installed at one end of the heating frame and the fixed plate.

[0014] Furthermore, a tensioning assembly is provided on the placement rack, and the tensioning assembly includes at least two groups of support seats installed on the placement rack, an electric cylinder is installed on one side of the support seat, and an upper pressure plate is installed on the output end of the electric cylinder. The upper pressure plate is located above the support seat, and rubber pads are provided on the upper pressure plate and the support seat.

[0015] The beneficial effect of the present application is that the present application provides an industrial filament dry heat shrinkage tester, which, through the setting of the storage component, can store most of the filaments in the heating area before heating, waiting for subsequent heating, thereby achieving the effect of increasing the heating area.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 This is an overall schematic diagram of an industrial filament dry heat shrinkage tester in this application; Figure 2 for Figure 1 A partial overall schematic diagram from another perspective; Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle; Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle; Figure 5 for Figure 1 Schematic diagram of the structure of the middle part as a whole; Figure 6 for Figure 1 A partial overall schematic diagram of another state in FIG; Figure 7 for Figure 6 The enlarged schematic diagram of point C in the middle; Figure 8 for Figure 7 The enlarged schematic diagram of point D in the middle; Figure 9 for Figure 1 Schematic diagram of another state from another perspective; Figure 10 for Figure 9 The enlarged schematic diagram of point E in the middle; Figure 11 for Figure 9 The enlarged schematic diagram of point F in the middle; Figure 12 for Figure 6 A partial overall schematic diagram of another state in FIG; Among them, the reference numerals in the figures are: 1. Box body; 2. Placement assembly; 21. Placement rack; 22. Groove; 23. Pneumatic clamp; 24. Roller; 25. Connecting plate; 26. Encoder; 27. Rotating wheel; 3. Storage assembly; 31. Baffle; 32. Fixing plate; 33. Support plate; 34. Fixing cylinder; 341. Slot; 35. Drive rack; 36. Round rod; 37. Drive gear; 38. Top plate; 39. Cylinder; 310. Vertical plate; 311. Support column; 312. Horizontal plate; 313. Connecting rod; 314. Ring; 4. Elastic assembly; 41. Slide; 42. Base; 421. Square groove; 43. Screw; 44. Clamp; 45. Raised portion; 46. Slide; 47. Support seat; 48. Rubber pad; 49. Electric cylinder; 410. Upper pressure plate; 5. Heating assembly; 51. Heating frame; 501. Cover plate; 52. Fixed seat; 53. Fixed box; 531. Servo motor; 532. Screw rod; 533. Slide seat; 534. Guide rod; 535. Connecting block; 54. Pad; 541. Crossbeam; 55. Graphene electric heating plate; 56. Driving gear; 57. Passive rack; 58. Slide plate; 59. Slide rail. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] Example 1: Figure 1-Figure 3 As shown, the present application provides an industrial filament dry heat shrinkage tester, comprising a box 1, on which a placement component 2 is provided, and the placement component 2 is used to place the industrial filament, specifically; The placement assembly 2 includes a placement rack 21 fixedly mounted on one side of the box 1. A connecting plate 25 is fixedly mounted on one side of the placement rack 21. A roller 24 is provided on the connecting plate 25. The roller 24 has multiple groups of partitions to facilitate the winding and placement of different filaments to be tested on the roller 24. A plurality of pneumatic clamps 23 are fixedly installed at both ends of the placement rack 21. The pneumatic clamps 23 are of prior art, and the specific structure and principle are not described in detail here, so that the filaments can be passed through the pneumatic clamps 23 and clamped by the pneumatic clamps 23. On the other side of the placement rack 21, multiple sets of encoders 26 are fixedly installed. The output end of the encoder 26 is fixedly sleeved with a rotating wheel 27. The rotating wheel 27 is provided with a loop for the filament to pass through. At the same time, the encoder 26 is connected to the PLC control system so that the filament passing through the pneumatic clamp 23 is placed on the loop of the rotating wheel 27. A weight is placed on the filament passing through one end of the rotating wheel 27. At this time, the filament is in a drooping state under the action of gravity and fits with the rotating wheel 27. It should be noted that the encoder 26 is a device that converts mechanical displacement (such as rotation angle, linear displacement) into an electrical signal and is a type of distance sensor. When the subsequent filament shrinks due to heat, the filament synchronously drives the runner 27 to rotate due to the action of friction. The encoder 26 and the control system cooperate to convert the rotation angle into length data, and the data is uploaded. A heating assembly 5 is provided inside the box 1 and is used for heating the filaments. like Figure 5-Figure 6 and Figures 9-11 As shown, the heating assembly 5 includes a crossbeam 541 fixedly mounted inside the box body 1, a backing plate 54 fixedly mounted on the top of the crossbeam 541, two sets of slide rails 59 fixedly mounted on the backing plate 54, a slide plate 58 slidably arranged on the slide rails 59, a driving motor (not shown in the figure) fixedly mounted on the bottom of the backing plate 54, a driving gear 56 fixedly sleeved on the output end of the driving motor, and a passive rack 57 fixedly mounted on the bottom of the slide plate 58, the passive rack 57 and the driving gear 56 meshingly connected; Then, driven by the driving motor, the driving gear 56 is driven to rotate, thereby driving the passive rack 57 to move, and then driving the slide 58 to move along the axis of the slide rail 59; Two sets of heating frames 51 (such as Figure 5 ), the heating frame 51 is made of multiple sets of plates, and the two sets of heating frames 51 are hinged to each other; The lower heating frame 51 is mounted on the slide 58. Graphene electric heating plates 55 are provided inside the two sets of heating frames 51. The graphene electric heating plates 55 are connected to an external power source so that the graphene electric heating plates 55 are energized by the power source to increase their temperature. Cover plates 501 are fixedly installed on both sides of the two sets of heating frames 51. A connecting block 535 is fixedly installed between the two sets of cover plates 501. A fixing box 53 is fixedly installed on the lower connecting block 535. A screw rod 532 is rotatably installed inside the fixing box 53. A slide 533 is threadedly installed on the screw rod 532. The slide 533 is fixedly connected to the upper connecting block 535. Continue to refer Figure 11 A guide rod 534 is fixedly installed inside the fixed box 53, and the slide 533 is slidably set on the guide rod 534. A servo motor 531 is fixedly installed on the fixed box 53. The output end of the servo motor 531 and one end of the lead screw 532 are jointly provided with a synchronous belt group (not shown in the figure). Then, under the drive of the servo motor 531, the lead screw 532 is driven to rotate through the synchronous belt group, thereby driving the slide 533 to move up and down along the axis of the lead screw 532. Under the action of the guide rod 534, its moving direction is restricted, thereby driving the upper heating frame 51 to approach or move away from the lower heating frame 51; An opening (not shown) is provided on one side of the box body 1, and a groove 22 is provided on the placement rack 21. After the filaments are placed, part of the filaments are located above the groove 22 and between the two sets of heating frames 51. One end of the two sets of slide rails 59 passes through the opening and extends into the interior of the groove 22, so that the slide plate 58 can enter the groove 22 from the opening. In the initial state, the upper heating frame 51 is slightly away from the lower heating frame 51, so that when the slide 58 moves, the two sets of heating frames 51 are synchronously driven to move, extend from the opening and enter the groove 22, until the filament is located between the two sets of heating frames 51, and the servo motor 531 is started to drive the upper heating frame 51 to approach the lower heating frame 51 to cover it, forming a heating chamber, and then the filament is heated; It should be noted that a baffle 31 is provided at one end of each of the two sets of heating frames 51 so as to seal the end surface thereof when the covers are closed, thereby relatively reducing heat loss. To sum up, when in use, a yarn bobbin with filaments is placed on the roller body 24, and the filaments are drawn and passed through the two sets of pneumatic clamps 23 and the runner 27 in sequence. Subsequently, a weight is installed at one end of the filament passing through the runner 27. At this time, the filament is in a drooping state under the action of gravity and fits with the runner 27. The drive motor is started, and the slide 58 is driven to move through the active gear 56 and the passive rack 57, thereby driving the two sets of heating frames 51 to extend from the opening and enter the groove 22. When the filament is located between the two sets of heating frames 51, the servo motor 531 is started, and the lead screw 532 is driven to rotate through the synchronous belt group, thereby driving the slide 533 to move downward, and then driving the upper heating frame 51 to move downward to cover the filament. Then, the graphene electric heating plate 55 is powered on to heat the filament. At this time, the filament shrinks due to the heat. Due to the friction force, the filament synchronously drives the wheel 27 to rotate, and the rotation angle is converted into length data through the cooperation of the encoder 26 and the control system, and the data is uploaded.

[0021] Example 2: Although the above process can realize the dry heat shrinkage rate test of the filament, when heating the filament, only the part of the filament located below the heating frame 51 is heated, while the filament hanging on the side cannot be heated, resulting in a small heating area. As a result, the shrinkage rate ratio of the heated part and the unheated part is inconsistent, which cannot reflect the actual shrinkage performance of the filament. To solve this problem, Figure 6-Figure 8 As shown, a receiving assembly 3 is provided on the placing assembly 2, and the receiving assembly 3 is suitable for receiving the filaments; The storage assembly 3 includes a fixed plate 32 fixedly mounted in the groove 22, and a plurality of vertical plates 310 fixedly mounted on the fixed plate 32. The vertical plates 310 are fixedly mounted with pillars 311. The pillars 311 have notches (not shown) to facilitate the passage of the filaments through the notches for guidance. Two sets of cylinders 39 are fixedly mounted on the bottom wall of the groove 22. Top plates 38 are fixedly mounted on the output ends of the two sets of cylinders 39. Multiple sets of support plates 33 are fixedly mounted on the top of the top plates 38. One end of the support plate 33 extends out of the top of the fixed plate 32, and the support plate 33 slides through the fixed plate 32. It should be noted that along Figure 6 In the middle, from left to right, a support plate 33 is provided between every two vertical plates 310, and when the top plate 38 rises, a height difference is generated between the support plate 33 and the vertical plates 310, forming a wave shape; A round rod 36 is fixedly mounted on one end of the support plate 33 extending from the fixed plate 32, and a fixed cylinder 34 is fixedly mounted on one end of the round rod 36. The fixed cylinder 34 is provided with a slot 341 that fits the notch of the support 311, so that the filament can pass through the slot 341 for guidance; Continue to refer Figure 8 A driving gear 37 is fixedly sleeved on the round rod 36, and a plurality of driving racks 35 are fixedly installed on the top of the fixed plate 32. The driving racks 35 are meshed with the driving gear 37, and a horizontal plate 312 is fixedly installed on the driving gear 37. A connecting rod 313 is fixedly installed on the horizontal plate 312. A circular ring 314 is provided on the end of the connecting rod 313 away from the horizontal plate 312. The ring 314 facilitates the passage of the filaments. Thus, driven by the cylinder 39, the top plate 38 drives the multiple support plates 33 to rise, and drives the fixing cylinder 34 to rise, thereby driving the filaments in the slot 341 to rise, and forming a height difference with the support 311, thereby forming a wave shape for the filaments in the slot 341 and the notch to accommodate the filaments. During the rising process, the driving gear 37 rotates along the axis of the round rod 36 under the action of the driving rack 35, thereby driving the ring 314 to rotate along the circumferential surface of the fixed cylinder 34 through the cross plate 312 and the connecting rod 313, thereby driving the filament in the ring 314 to rotate synchronously. Since one end of the filament has a weight and the filament is restricted in the ring 314, during its rotation, the filament will be wound around the outer circumferential surface of the fixed cylinder 34 to be stored. It should be noted that the ring 314 is located on the left side of the card slot 341 to avoid mechanical interference with the filament during winding; like Figure 2-Figure 3 As shown, multiple sets of slideways 41 are fixedly installed on one side of the placement rack 21. The slideway 41 has a vertical portion and a raised portion 45. The vertical portion is located below the rotating wheel 27, and the raised portion 45 is located on the outer ring of the rotating wheel 27. A sliding groove 46 is opened inside the slideway 41. A roller (not shown) is provided inside the chute 46, and a connecting rod (not shown) is provided on the roller. A base 42 is fixedly mounted on the connecting rod. A square groove 421 is provided through the base 42 to facilitate placement of a weight connected to the filament in the square groove 421. A clamping plate 44 is slidably provided on the inner wall of the square groove 421, and a screw 43 is rotatably mounted on the clamping plate 44. The screw 43 is threadedly mounted on the base 42, so that the screw 43 can be rotated to extend into the interior of the square groove 421, thereby driving the clamping plate 44 to extend into the interior of the square groove 421, thereby clamping the weight in the square groove 421; It should be noted that, in order to prevent the lower heating frame 51 from interfering with the cylinder 39 when the heating assembly 5 is extended, the lower heating frame 51 is removed and the upper heating frame 51 is retained, as shown in FIG. Figure 6 and Figure 11 As shown, a fixing seat 52 is fixedly mounted on the slide 58, the fixing seat 52 is hinged to the upper heating frame 51, and a fixing box 53 is fixedly connected to one end of the fixing seat 52. like Figure 12 As shown, one end of the fixing plate 32 is fixedly connected to the baffle 31, so that when heating, the heating frame 51 can cooperate with the fixing plate 32 to cover the filament, forming a heating area to heat the filament, and the end surface of the filament is covered by the two sets of baffles 31, which relatively reduces the heat loss during heating; In summary, when placing the filament, it is sequentially passed through the multiple sets of slots 341, the ring 314, and the gap of the pillar 311, and then the weight is connected to the filament and placed in the square groove 421. The screw 43 is rotated to drive the clamping plate 44 to clamp it. Before heating, the two sets of cylinders 39 are started, and the multiple sets of support plates 33 are driven to move upward through the top plate 38, thereby driving the multiple sets of fixed cylinders 34 to move, and cooperating with the multiple sets of pillars 311 to form the filament into a wave shape. At the same time, the multiple sets of rings 314 rotate under the cooperation of the drive gear 37 and the drive rack 35, so that the filament is wound and wound on the fixed cylinder 34, and the weight is driven to move upward synchronously, thereby driving the roller to move from the vertical part to the raised part 45 in the slide groove 46 through the base 42. In this process, the friction force of the filament drives the runner 27 to rotate. At this time, the encoder 26 cooperates with the control system to convert the angle data into length data and upload and record it. When the roller enters the raised portion 45, it simultaneously drives the base 42 away from the rotating wheel 27. At this time, the weight is also moved away from the rotating wheel 27, thereby driving the filament to separate from the rotating wheel 27. As the filament continues to be wound, the roller drives the base 42 to continue to move upward in the chute 46 until it moves to the end end. At this time, the weight is located above the rotating wheel 27. At this time, most of the filament will be received in the groove 22 to be heated by the heating assembly 5, thereby increasing the heating area of the filament. After the heating is completed, the cylinder 39 contracts and drives the multiple groups of fixed cylinders 34 to descend through the top plate 38, thereby unwinding the filament. At this time, under the action of gravity, the weight drives the roller in the slide groove 46 through the base 42, and moves from the raised part 45 to the vertical part. When the weight moves to the vertical part, the weight drives the filament to contact the runner 27 again, and as the weight continues to descend, the filament drives the runner 27 to rotate continuously. At this time, the encoder 26 and the control system convert its rotation angle data into length data and upload and record it, so that the difference between the two data can be calculated to obtain the shrinkage rate.

[0022] Embodiment 3: A tensioning assembly 4 is provided on the placement rack 21, and the tensioning assembly 4 is used to control the speed of the filament when it falls; like Figure 2 and Figure 4As shown, the tensioning assembly 4 includes multiple groups of support bases 47 fixedly mounted on the placement frame 21. An electric cylinder 49 is fixedly mounted on one side of the support base 47. An upper pressing plate 410 is fixedly mounted on the output end of the electric cylinder 49. The upper pressing plate 410 is located above the support base 47 so that the upper pressing plate 410 can be driven closer to or away from the support base 47 by the electric cylinder 49. Rubber pads 48 are provided on both the upper pressing plate 410 and the support seat 47 so that when the filament passes through the pneumatic clamp 23, it can be located on the rubber pad 48 on the support seat 47. Then, the electric cylinder 49 is activated to drive the upper pressing plate 410 to move downward to clamp the filament. To sum up, after the storage component 3 has finished storing the filament, the electric cylinder 49 is started to drive the upper pressure plate 410 to move downward, thereby clamping the filament. After heating is completed, the electric cylinder 49 is started to drive the upper pressure plate 410 to move slightly upward, thereby slightly loosening the filament, so that the filament will still be slightly clamped in the process of the weight driving the filament downward, thereby slowing down the falling speed of the weight and avoiding the filament breaking due to the rapid falling speed of the weight.

[0023] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An industrial filament dry heat shrinkage tester, characterized by: include: Box (1); A placement component (2), the placement component (2) is arranged on the box body (1), the placement component (2) has a placement rack (21), and a groove (22) is provided on the placement rack (21); a heating frame (51), the heating frame (51) being adapted to be received inside the box (1) and pushed out of the box (1) and positioned above the groove (22); A storage assembly (3), the storage assembly (3) being arranged on the box body (1), the storage assembly (3) comprising: A fixed plate (32), the fixed plate (32) being arranged on the placement component (2), the fixed plate (32) and the pushed-out heating frame (51) forming a heating area for the industrial filament; At least two groups of vertical plates (310), the vertical plates (310) being mounted on the fixed plate (32), pillars (311) being mounted on the vertical plates (310), and openings being provided on the pillars (311); Two groups of cylinders (39), the cylinders (39) are installed inside the groove (22), and the output ends of the cylinders (39) are installed with a top plate (38); At least two groups of support plates (33), the support plates (33) being mounted on the top plate (38), and round rods (36) being mounted on the support plates (33); At least two groups of fixed cylinders (34), the fixed cylinders (34) are mounted on one end of the round rod (36), and a clamping groove (341) is provided on the fixed cylinders (34).

2. The industrial filament dry heat shrinkage tester according to claim 1, characterized in that: At least two groups of driving gears (37) are rotatably mounted on the round rod (36), and multiple groups of driving racks (35) are mounted on the fixed plate (32), and the driving gears (37) and the driving racks (35) are meshed and connected.

3. The industrial filament dry heat shrinkage tester according to claim 2, characterized in that: A transverse plate (312) is mounted on the driving gear (37), a connecting rod (313) is mounted on the transverse plate (312), and a circular ring (314) is mounted on the connecting rod (313).

4. The industrial filament dry heat shrinkage tester according to claim 1, characterized in that: The placement assembly (2) includes a connecting plate (25) mounted on one side of the placement frame (21), a roller body (24) is provided on the connecting plate (25), at least two sets of pneumatic clamps (23) are installed at both ends of the placement frame (21), at least two sets of encoders (26) are installed on the other side of the placement frame (21), and a rotating wheel (27) is fixedly provided on the output end of the encoder (26).

5. The industrial filament dry heat shrinkage tester according to claim 4, characterized in that: At least two sets of slideways (41) are installed on the other side of the placement rack (21), and the slideways (41) have a vertical portion and a raised portion (45). The vertical portion is located below the rotating wheel (27), and the raised portion (45) is located on the outer ring of the rotating wheel (27). A sliding groove (46) is provided inside the slideway (41).

6. The industrial filament dry heat shrinkage tester according to claim 5, characterized in that: A roller is provided inside the slide groove (46), a connecting rod is provided on the roller, a base (42) is installed on the connecting rod, a square groove (421) is provided through the base (42), a convex block is provided on the inner wall of the square groove (421), a clamping plate (44) is provided on the convex block for sliding, a screw (43) is rotatably provided on the clamping plate (44), and the screw (43) is threadedly installed on the base (42).

7. The industrial filament dry heat shrinkage tester according to claim 1, characterized in that: A crossbeam (541) is installed inside the box (1), a pad (54) is installed on the top of the crossbeam (541), two sets of slide rails (59) are installed on the pad (54), a slide plate (58) is slidably provided on the slide rails (59), and a driving motor is installed on the bottom of the pad (54).

8. The industrial filament dry heat shrinkage tester according to claim 7, characterized in that: The output end fixed sleeve of the driving motor is provided with a driving gear (56), and the bottom of the slide plate (58) is provided with a passive rack (57), and the passive rack (57) and the driving gear (56) are meshed and connected.

9. The industrial filament dry heat shrinkage tester according to claim 8, characterized in that: A fixing seat (52) is installed on the slide (58), and the upper end of the fixing seat (52) is hinged to the heating frame (51). The heating frame (51) is formed by splicing at least two groups of plates. A graphene electric heating plate (55) is provided inside the heating frame (51), and the graphene electric heating plate (55) is connected to an external power supply. A baffle (31) is installed at one end of the heating frame (51) and the fixing plate (32).

10. The industrial filament dry heat shrinkage tester according to claim 1, characterized in that: A tensioning assembly (4) is provided on the placement rack (21), and the tensioning assembly (4) includes at least two groups of support seats (47) installed on the placement rack (21), an electric cylinder (49) is installed on one side of the support seat (47), and an upper pressing plate (410) is installed on the output end of the electric cylinder (49), and the upper pressing plate (410) is located above the support seat (47). Rubber pads (48) are provided on both the upper pressing plate (410) and the support seat (47).

Images