A knitting needle strength testing device

Abstract

The present invention relates to the field of knitting needle detection, specifically a knitting needle strength testing device, comprising a bracket and a plurality of knitting needles, the bracket being equipped with a bearing platform, the plurality of knitting needles being equidistantly placed inside two mounting frames, the side walls of the mounting frames being equipped with detection components, the top of the bearing platform being symmetrically equipped with distinguishing components, and the top of the bracket being equipped with a protective component. The present invention sets a protective component, and during the strength detection process, the third electric push rod is started while the hydraulic push rod is started, and the active end of the third electric push rod begins to extend, thereby driving the protective cover to move down along the slide slot until the protective cover contacts the top of the bearing platform, and at this time, the protective cover and the protective plates on both sides form a complete box-shaped structure, thereby completely sealing the area around the knitting needles, and even if the knitting needles break, under the protection of the protective cover and the protective plate, the fragments will not splash, thereby avoiding injuries to the staff, and improving the safety effect of the device.

Description

Technical Field

[0001] The invention relates to the technical field of knitting needle detection, in particular to a knitting needle strength testing device. Background Art

[0002] The knitting needle is a major loop-forming component on a knitting machine. It is made of steel wire or steel belt through mechanical processing. It is used to weave yarn into coils and connect the coils into a knitted fabric. The structure and shape of the knitting needle affect the knitting process, the productivity of the knitting machine and the quality of the product. In the loom, it is easy to wear and break. The knitting needle is tested by using a fatigue testing device.

[0003] For example, a knitted fabric strength detection device is proposed in the announcement number CN221148336U, which includes: a base, a plurality of first vertical rods are fixedly connected to the upper end of the base, a first movable plate and a second movable plate are installed on the side walls of two connected first vertical rods, an upper clamp is installed on the lower surface of the two first movable plates, a lower clamp is installed on the upper surface of the two second movable plates, two cross bars are installed on the upper end of the base, a first slide bar is installed in the middle of the two cross bars, a first slider is slidably connected to the outside of the two first sliders, a second vertical rod is installed on the upper end of the two first sliders, and a third movable plate is installed on the side wall of the second vertical rod. The device uses two sets of upper clamps to cooperate with the lower clamp to clamp the two ends of the knitted fabric, so that the knitted fabric remains stable and is convenient for detecting the strength of the knitted fabric, and uses the card slot and the card block to cooperate, so that the knitted fabric will not be damaged after clamping.

[0004] At present, when strength tests are performed on multiple tissue needles at the same time, if the strength of the knitting needles is insufficient, they will bend and deform, or break directly. If the knitting needles break, it can be directly judged as insufficient strength. If the bending deformation occurs and the degree cannot be directly observed by the staff, further testing is required, which affects the testing efficiency. In addition, after the test, the staff cannot quickly distinguish and recycle the knitting needles with qualified and unqualified quality in time, which affects the testing efficiency. Moreover, in the knitting needle testing process, since the knitting needles are made of steel material, if the knitting needles have high rigidity, fragments will fly around when they break, causing injuries to the surrounding staff, posing a safety hazard.

[0005] In view of the above problems, a knitting needle strength testing device is proposed. Summary of the invention

[0006] The object of the present invention is to provide a knitting needle strength testing device, which is used to work, thereby solving the problem in the above-mentioned background technology that if bending deformation occurs, it cannot be directly detected and a secondary test is required. In addition, it is impossible to distinguish and recycle qualified and unqualified knitting needles in time. Moreover, during the detection process, when the knitting needle breaks, fragments will fly and cause harm to people around.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a knitting needle strength testing device, comprising a bracket and a plurality of knitting needles, the bracket is equipped with a bearing platform, the top of the bearing platform is symmetrically fixedly connected to a mounting frame, the plurality of knitting needles are equidistantly placed inside two mounting frames, the top of the bracket is fixedly connected to a hydraulic push rod, the movable end of the hydraulic push rod is fixedly connected to a detection plate, the side wall of the mounting frame is equipped with a detection component, the top of the bearing platform is symmetrically equipped with a distinguishing component, and the top of the bracket is equipped with a protective component;

[0008] The distinguishing component includes two groups of support plates, each of which is an inverted L-shaped structure, and the two groups of support plates are symmetrically fixedly connected to the top of the bearing platform, and the top of the bearing platform is symmetrically fixedly connected with a second electromagnet, and the two second electromagnets are respectively located on one side of the adjacent mounting frame, and the two support plates located on the same side are slidably connected with a second connecting plate, and the top of each support plate is fixedly connected with a second electric push rod;

[0009] The movable end of the second electric push rod passes through the top wall of the support plate and is fixedly connected to the top of the adjacent second connecting plate. A slide plate is equidistantly passed through the top of each second connecting plate for sliding connection. A clamping plate is fixedly connected to the bottom end of each slide plate. The bottom end of the clamping plate is an arc-shaped structure. A pressure plate is fixedly connected to the top of each slide plate. A second spring is fixedly connected to the bottom end of the pressure plate. The clamping plate tightly clamps the knitting needles.

[0010] One end of the second spring is fixedly connected to the top of the second connecting plate, the two support plates on the same side are fixedly connected to a baffle plate, the top of each pressure plate is in contact with the bottom of the baffle plate, each side wall of the slide plate is provided with a limiting hole, and the top of the second connecting plate is fixedly connected to a plurality of mounting plates at equal distances;

[0011] Each side wall of the mounting plate is symmetrically fixedly connected to a third spring, and the two third springs are commonly fixedly connected to a push plate. One side wall of the push plate is fixedly connected to a limiting plate, and the limiting plate is slidably connected to an adjacent limiting hole. The other side wall of the push plate is fixedly connected to a permanent magnet, and the side wall of the mounting plate is fixedly connected to a first electromagnet.

[0012] Furthermore, the detection component includes a first electric push rod, which is fixedly connected to one of the side walls of the mounting frame. The movable end of the first electric push rod is fixedly connected to a first connecting plate, which is slidably connected to the top of the support platform, and the top of the first connecting plate is equidistantly fixedly connected to a plurality of telescopic rods.

[0013] Furthermore, one end of each telescopic rod is fixedly connected to an arc plate, each arc plate is located directly below an adjacent knitting needle, the bottom end of each arc plate is fixedly connected to a first spring, and one end of the first spring is fixedly connected to a movable plate.

[0014] Furthermore, the movable plate is slidably connected to the telescopic rod, the first spring is sleeved on the outer side wall of the adjacent telescopic rod, the bottom end of the movable plate is symmetrically fixedly connected with a first electrode sheet, the top end of the first connecting plate is equidistantly fixedly connected with a fixed plate, and each top end of the fixed plate is fixedly connected with a second electrode sheet.

[0015] Furthermore, the protective assembly includes two positioning plates, and the two positioning plates are symmetrically fixedly connected to the top of the bracket. Each of the tops of the brackets is fixedly connected to a third electric push rod, and the movable ends of the two third electric push rods pass through the side walls of adjacent positioning plates and are commonly connected to a protective cover, and the side walls of the protective cover are symmetrically fixedly connected to sliding blocks.

[0016] Furthermore, the top of the protective cover is slidably connected to the movable end of the hydraulic push rod, the top of the support platform is symmetrically fixedly connected with a protective plate, each side wall of the protective plate is symmetrically provided with a sliding groove, each sliding block is slidably connected to the inside of an adjacent sliding groove, and the protective cover and the protective plate are both made of transparent materials.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By setting a detection component, the first electric push rod is started, and the movable end of the first electric push rod is contracted, thereby driving the first connecting plate to start moving along the surface of the knitting needle. In the process of the arc plate moving along the knitting needle, if the arc plate contacts the knitting needle, it will push the arc plate compression telescopic rod to move downward, and the first electrode sheet at the bottom of the movable plate will contact the second electrode sheet. At this time, the first electromagnet is energized, and under the action of magnetic attraction, the push plate and the limit plate are driven to move synchronously, so that the limit plate leaves the inside of the limit hole, and the limit on the slide plate and the clamping plate is released. Under the elastic action of the second spring, the pressure plate is pushed upward, so that the slide plate and the clamping plate move up to produce an obvious displacement, so that the staff can observe the raised slide plate and pressure plate, and intuitively judge the unqualified knitting needles. Compared with the existing strength detection equipment, the device no longer requires the staff to perform secondary detection, which is more convenient, ensures product quality, and improves the efficiency of strength detection.

[0019] By setting up a distinguishing component, after the detection of the detection component is completed, the corresponding clamping plate of the unqualified knitting needle will move up to release the limit on the unqualified knitting needle, and at this time, the second electromagnets on both sides are energized, and the amount of power supplied to the second electromagnets on both sides is different, one side is larger than the other side, so that the corresponding magnetic force generated will also be larger than the other side, and the knitting needles are made of steel material and have the characteristic of being attracted by magnetic force. Under the action of magnetic force, the unqualified knitting needles will be attracted by the second electromagnet on the side with larger magnetic force, so that the knitting needles are attracted to the second electromagnet with larger magnetic force, and the unqualified knitting needles are sucked away from the mounting frame by the second electromagnet, and the knitting needles with qualified quality are left on the mounting frame. On the rack, qualified and unqualified knitting needles can be intuitively distinguished. The accurate distinction reduces the subsequent inspection of the staff and improves the practicality of the device. By setting the protection component, during the strength test, the third electric push rod is started at the same time as the hydraulic push rod is started, and the movable end of the third electric push rod begins to extend, thereby driving the protective cover to move down along the slide until the protective cover contacts the top of the bearing platform. At this time, the protective cover and the protective plates on both sides form a complete box-shaped structure, thereby completely sealing the area around the knitting needle. Even if the knitting needle breaks, it will not jump out under the protection of the protective cover and the protective plate, thereby avoiding injuries to the staff and improving the safety effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the mounting frame and the distinguishing components in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the detection component and the differentiation component in the present invention;

[0024] Figure 5 A bottom view of the detection assembly of the present invention;

[0025] Figure 6 for Figure 5 A partial enlarged schematic diagram of part A;

[0026] Figure 7 It is a schematic diagram of the structure of the detection component in the present invention;

[0027] Figure 8 for Figure 7 A partial enlarged schematic diagram of part B;

[0028] Fig. 9 It is a structural schematic diagram of the carrier platform and the distinguishing components in the present invention;

[0029] Fig.10 It is a structural schematic diagram of distinguishing components in the present invention;

[0030] Fig.11 It is a partial structural schematic diagram of distinguishing components in the present invention;

[0031] Fig.12 A side view of a portion of the structure for distinguishing components in the present invention;

[0032] Fig.13 It is a schematic diagram of the structure of the protection component in the present invention;

[0033] Fig.14 It is a schematic diagram of the main structure of the protective components in this invention.

[0034] In the figure: 1, bracket; 11, bearing platform; 2, mounting frame; 21, hydraulic push rod; 22, detection plate; 3, knitting needle; 4, detection component; 41, first electric push rod; 42, first connecting plate; 43, telescopic rod; 44, first spring; 45, arc plate; 46, moving plate; 47, first electrode sheet; 48, fixed plate; 49, second electrode sheet; 5, distinguishing component; 51, support plate; 52, baffle; 53, second electric push rod; 5 4. Second connecting plate; 55. Slide plate; 56. Clamping plate; 57. Limiting hole; 58. Second spring; 59. Pressing plate; 510. Mounting plate; 511. Third spring; 512. Pushing plate; 513. Limiting plate; 514. First electromagnet; 515. Permanent magnet; 516. Second electromagnet; 6. Protective assembly; 61. Positioning plate; 62. Third electric push rod; 63. Protective cover; 64. Sliding block; 65. Protective plate; 66. Slide groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to solve the problem that when testing the strength of multiple tissue needles 3 at the same time, if the strength of the knitting needle 3 is insufficient, it will bend or break directly. If the knitting needle 3 breaks, it can be directly judged as insufficient strength. If the bending deformation and the degree cannot be directly observed by the staff, further testing is required, which affects the technical problem of testing efficiency, such as Figure 1 - Figure 8 As shown, the following preferred technical solutions are provided:

[0037] A knitting needle strength testing device comprises a bracket 1 and a plurality of knitting needles 3, wherein the bracket 1 is provided with a bearing platform 11, a mounting frame 2 is symmetrically fixedly connected to the top of the bearing platform 11, and a plurality of knitting needles 3 are equidistantly placed inside two mounting frames 2, a hydraulic push rod 21 is fixedly connected to the top of the bracket 1, a detection plate 22 is fixedly connected to the movable end of the hydraulic push rod 21, and the mounting frame 2 is structured such that a plurality of placement grooves are equidistantly provided at the top, so that the knitting needles 3 can be placed inside the mounting frame 2, and the knitting needles 3 to be tested are placed on the two mounting frames 2 so that the two ends of the knitting needles 3 are respectively located in the two mounting frames 2, and then a second electric push rod 53 is started, and the movable end of the second electric push rod 53 begins to extend, thereby driving the second connecting plate 54 and the clamping plate 56 to move downward until the clamping plate 56 contacts the top of the adjacent knitting needle 3, thereby stably clamping the knitting needle 3 to avoid movement of the knitting needle 3 during the detection process, thereby affecting the detection effect.

[0038] The side wall of the mounting frame 2 is provided with a detection component 4. By setting the detection component 4, the first electric push rod 41 is started, and the movable end of the first electric push rod 41 contracts, thereby driving the first connecting plate 42 to start moving along the surface of the knitting needle 3. When the arc plate 45 moves along the knitting needle 3, if the arc plate 45 contacts the knitting needle 3, the arc plate 45 will be pushed to compress the telescopic rod 43 and move downward, and the first electrode sheet 47 at the bottom end of the moving plate 46 will contact the second electrode sheet 49. At this time, the first electromagnet 514 is energized, and the push plate 512 and the limit plate 513 are driven by the magnetic attraction. The synchronous movement is performed so that the limit plate 513 leaves the limit hole 57, the limit on the slide plate 55 and the clamping plate 56 is released, and under the elastic action of the second spring 58, the pressure plate 59 is pushed to move upward, so that the slide plate 55 and the clamping plate 56 move upward and produce an obvious displacement, so that the staff can observe the raised slide plate 55 and the pressure plate 59 and intuitively judge the unqualified knitting needles 3. Compared with the existing strength testing equipment, the device no longer requires the staff to perform secondary testing, is more convenient, ensures the production quality, and improves the efficiency of strength testing.

[0039] A distinguishing component 5 is symmetrically installed on the top of the carrier 11. By setting the distinguishing component 5, after the detection of the detection component 4 is completed, the clamping plate 56 corresponding to the unqualified knitting needle 3 will move up to release the limit of the unqualified knitting needle 3. At this time, the second electromagnets 516 on both sides are energized, and the amount of power supplied to the second electromagnets 516 on both sides is different, one side is larger than the other side, so that the corresponding magnetic force generated will also be larger than the other side. The knitting needle 3 is made of steel material and has the characteristic of being attracted by magnetic force. Under the action of magnetic force, the unqualified knitting needle 3 will be attracted by the second electromagnet 516 on the side with larger magnetic force, so that the knitting needle 3 is attracted to the second electromagnet 516 with larger magnetic force, and the unqualified knitting needle 3 is sucked away from the mounting frame 2 by the second electromagnet 516, and the knitting needle 3 with qualified quality is left on the mounting frame 2, so that the qualified and unqualified knitting needles 3 are intuitively distinguished, and the distinction is accurate while reducing the subsequent inspection of the staff, thereby improving the practicality of the device.

[0040] A protection component 6 is installed at the top of the bracket 1. By setting the protection component 6, during the strength test, the hydraulic push rod 21 is started and the third electric push rod 62 is started at the same time. The movable end of the third electric push rod 62 begins to extend, thereby driving the protection cover 63 to move down along the slide groove 66 until the protection cover 63 contacts the top of the carrier 11. At this time, the protection cover 63 and the protection plates 65 on both sides form a complete box-shaped structure, thereby completely sealing the area around the knitting needle 3, and the protection cover 63 and the protection plate 65 are both made of transparent material to facilitate observation of the specific situation during the detection of the knitting needle 3; by setting the protection cover 63 and the protection plate 65, the knitting needle 3 is completely sealed during the detection process. Even if the knitting needle 3 breaks, under the protection of the protection cover 63 and the protection plate 65, the fragments will not splash, avoiding injuries to the staff and improving the safety effect of the device.

[0041] The detection component 4 includes a first electric push rod 41, which is fixedly connected to one of the side walls of the mounting frame 2. The movable end of the first electric push rod 41 is fixedly connected to a first connecting plate 42. The first connecting plate 42 is slidably connected to the top of the supporting platform 11, and a plurality of telescopic rods 43 are fixedly connected to the top of the first connecting plate 42 at equal distances.

[0042] One end of each telescopic rod 43 is fixedly connected to an arc plate 45 , each arc plate 45 is located directly below the adjacent knitting needle 3 , the bottom end of each arc plate 45 is fixedly connected to a first spring 44 , and one end of the first spring 44 is fixedly connected to a moving plate 46 .

[0043] The movable plate 46 is slidably connected to the telescopic rod 43, the first spring 44 is sleeved on the outer wall of the adjacent telescopic rod 43, the bottom end of the movable plate 46 is symmetrically fixedly connected to the first electrode sheet 47, the top end of the first connecting plate 42 is equidistantly fixedly connected to the fixed plate 48, and the top end of each fixed plate 48 is fixedly connected to the second electrode sheet 49.

[0044] In this solution: the active end of the hydraulic push rod 21 drives the detection plate 22 to move downward, and generates downward pressure on the suspended part in the middle of the knitting needle 3. During the strength test, if the knitting needle 3 breaks due to insufficient strength, it is directly judged as unqualified. If the knitting needle 3 is bent but not broken, there is also a quality problem, and further testing is required to determine whether the degree of bending is within the qualified range. Because the knitting needle 3 is firmly clamped and the downward pressure generated is directed downward, the bending direction will be downward. At this time, the first electric push rod 41 is started, and the active end of the first electric push rod 41 contracts, thereby driving the first connecting plate 42 to start moving along the surface of the knitting needle 3. The initial position of the arc plate 45 leaves a distance from the bottom end of the knitting needle 3 to ensure that some knitting needles 3 with slight bends are within the qualified range; during the movement of the arc plate 45 along the knitting needle 3, if the arc plate 45 contacts the knitting needle 3, it means that the degree of bending of the knitting needle 3 is too large, which is unqualified. At this time, the arc plate 45 contacts the knitting needle 3 During the process, the arc plate 45 will be pushed to compress the telescopic rod 43 and move downward, and the first electrode sheet 47 at the bottom of the movable plate 46 will contact the second electrode sheet 49. At this time, the first electromagnet 514 is energized, and its end generates anisotropic magnetic poles on the adjacent end faces of the permanent magnet 515. Under the action of magnetic attraction, the push plate 512 and the limit plate 513 are driven to move synchronously, so that the limit plate 513 leaves the inside of the limit hole 57, and the limit on the slide plate 55 and the clamping plate 56 is released. Under the elastic action of the second spring 58, the pressure plate 59 is pushed to move upward, thereby driving the slide plate 55 and the clamping plate 56 to move upward synchronously. The upward movement of the slide plate 55 and the clamping plate 56 will produce an obvious displacement, so that the staff can observe the raised slide plate 55 and the pressure plate 59, so that the unqualified knitting needle 3 can be judged intuitively. Compared with the existing strength detection equipment, the present device no longer requires the staff to perform secondary detection, which is more convenient, ensures the production quality, and improves the efficiency of strength detection.

[0045] The telescopic rod 43 is a prior art, and a reset spring is arranged inside it. After the external force is removed, the telescopic rod 43 is reset under the action of the reset spring inside it. In this scheme, the elastic force of the reset spring inside the telescopic rod 43 is less than the downward pressure generated by the knitting needle 3, and the first spring 44 is arranged to drive the movable plate 46 to slide along the outer surface of the telescopic rod 43 in order to avoid that some knitting needles 3 are bent too much. The first electrode sheet 47 at the bottom of the movable plate 46 has been in contact with the second electrode sheet 49, but the movable plate 46 will still move down a distance, generating excessive pressure between the first electrode sheet 47 and the second electrode sheet 49, causing damage. The first spring 44 is used for buffering to ensure that it will not be damaged.

[0046] In order to solve the technical problem that after the test, the staff cannot distinguish and recycle the knitting needles 3 with qualified quality and those with unqualified quality in time, which affects the test efficiency, such as Fig. 9 - Fig.12 As shown, the following preferred technical solutions are provided:

[0047] The distinguishing component 5 includes two groups of support plates 51, each of which is an inverted L-shaped structure. The two groups of support plates 51 are symmetrically fixedly connected to the top of the support platform 11. The top of the support platform 11 is symmetrically fixedly connected with a second electromagnet 516. The two second electromagnets 516 are respectively located on one side of the adjacent mounting frame 2. The two support plates 51 on the same side are slidably connected with a second connecting plate 54. The top of each support plate 51 is fixedly connected with a second electric push rod 53.

[0048] The movable end of the second electric push rod 53 passes through the top wall of the support plate 51 and is fixedly connected to the top end of the adjacent second connecting plate 54. A slide plate 55 is equidistantly passed through the top end of each second connecting plate 54 for sliding connection. The bottom end of each slide plate 55 is fixedly connected to a clamping plate 56. The bottom end of the clamping plate 56 is an arc-shaped structure. The top end of each slide plate 55 is fixedly connected to a pressure plate 59, and the bottom end of the pressure plate 59 is fixedly connected to a second spring 58.

[0049] One end of the second spring 58 is fixedly connected to the top of the second connecting plate 54, and the two support plates 51 located on the same side are commonly fixedly connected to the baffle 52. The top of each pressure plate 59 is in contact with the bottom of the baffle 52. A limiting hole 57 is provided on the side wall of each slide plate 55. A plurality of mounting plates 510 are equidistantly fixedly connected to the top of the second connecting plate 54.

[0050] Each side wall of the mounting plate 510 is symmetrically fixedly connected with a third spring 511, and the two third springs 511 are commonly fixedly connected with a push plate 512. One side wall of the push plate 512 is fixedly connected with a limiting plate 513, and the limiting plate 513 is slidably connected with the adjacent limiting hole 57. The other side wall of the push plate 512 is fixedly connected with a permanent magnet 515, and the side wall of the mounting plate 510 is fixedly connected with a first electromagnet 514.

[0051] In this scheme: after the knitting needles 3 are strength tested, both the unqualified knitting needles 3 and the qualified knitting needles 3 are located on the mounting frame 2, and they still need to be manually distinguished and recovered later, which is cumbersome and inconvenient. After the detection by the detection component 4 is completed, the unqualified knitting needles 3 and the corresponding clamping plates 56 will move up to release the limit on the unqualified knitting needles 3. At this time, the second electromagnets 516 on both sides are energized, and the power supply of the second electromagnets 516 on both sides is different, one side is larger than the other side, so that the corresponding magnetic force generated will also be larger than the other side, and the knitting needles 3 are made of steel material and have the characteristic of being attracted by magnetic force. Under the action of magnetic force, the unqualified knitting needles 3 will be attracted by the second electromagnet 516 on the side with larger magnetic force, so that the knitting needles 3 are attracted to the second electromagnet 516 with larger magnetic force, and in the process of strength testing, the broken knitting needles 3 are energized by the clamping plates 56. Clamping, so there will still be a section on the mounting frame 2, and the broken knitting needles 3 remaining on the mounting frame 2 are adsorbed and recovered by the second electromagnet 516, reducing the subsequent cleaning of the mounting frame 2 by the staff, and only the unqualified knitting needles 3 on the second electromagnet 516 need to be recovered and cleaned. After the detection by the detection component 4, a part of the clamping plate 56 does not contact the unqualified knitting needles 3, but the knitting needles 3 with qualified quality are still in contact with the clamping plate 56, so that the knitting needles 3 are stably clamped, so that the knitting needles 3 with qualified quality will not move under the action of the magnetic force, and the unqualified knitting needles 3 are sucked away from the mounting frame 2 by the second electromagnet 516, and the knitting needles 3 with qualified quality are left on the mounting frame 2, so that the qualified and unqualified knitting needles 3 are intuitively distinguished, and the distinction is accurate while reducing the subsequent detection of the staff, thereby improving the practicality of the device;

[0052] The first electromagnet 514 can be powered off after the slide plate 55 and the pressure plate 59 are moved upwards. After the power is off, the push plate 512 and the limit plate 513 are reset under the elastic action of the third spring 511, so that the limit plate 513 contacts the side wall of the slide plate 55. When the device is detected, the second electric push rod 53 contracts to drive the second connecting plate 54 to move upwards. In the process of moving upwards and resetting to the initial position, the raised pressure plate 59 and the slide plate 55 contact the bottom end of the baffle 52, thereby pushing the raised pressure plate 59 and the slide plate 55 to move downwards. At this time, the second spring 58 is in a compressed state. As the slide plate 55 moves downwards to the initial position, the limit plate 513 enters the limit hole 57 under the elastic action of the third spring 511 to limit the slide plate 55 for subsequent continued use.

[0053] In order to solve the technical problem that during the inspection process of the knitting needle 3, since the knitting needle 3 is made of steel material, if the knitting needle 3 has a large rigidity, fragments will fly when it breaks, causing harm to the surrounding staff, which poses a safety hazard, such as Fig.13 - Fig.14As shown, the following preferred technical solutions are provided:

[0054] The protective component 6 includes two positioning plates 61, and the two positioning plates 61 are symmetrically fixedly connected to the top of the bracket 1. A third electric push rod 62 is fixedly connected to the top of each bracket 1. The movable ends of the two third electric push rods 62 pass through the side walls of the adjacent positioning plates 61 and are commonly connected to a protective cover 63. The side walls of the protective cover 63 are symmetrically fixedly connected to a sliding block 64.

[0055] The top of the protective cover 63 is slidably connected to the movable end of the hydraulic push rod 21, and a protective plate 65 is symmetrically fixedly connected to the top of the support platform 11. Each side wall of the protective plate 65 is symmetrically provided with a slide groove 66, and each sliding block 64 is slidably connected to the inside of an adjacent slide groove 66. The protective cover 63 and the protective plate 65 are both made of transparent materials.

[0056] In this solution: since the knitting needle 3 is made of steel material, during the strength test, if the quality is poor and it breaks, the fragments will directly splash out from the inside of the device to the surroundings, causing harm to the surrounding staff. During the strength test, the third electric push rod 62 is started while the hydraulic push rod 21 is started. The movable end of the third electric push rod 62 is extended, thereby driving the protective cover 63 to move down along the slide groove 66 until the protective cover 63 contacts the top of the carrier 11. At this time, the protective cover 63 and the protective plates 65 on both sides form a complete box-shaped structure, thereby completely sealing the area around the knitting needle 3, and the protective cover 63 and the protective plate 65 are both made of transparent material, so as to facilitate the observation of the specific situation during the knitting needle 3 detection process; by providing the protective cover 63 and the protective plate 65, the knitting needle 3 is completely sealed during the detection process. Even if the knitting needle 3 breaks, it will not jump out under the protection of the protective cover 63 and the protective plate 65, thereby avoiding injuries to the staff and improving the safety effect of the device;

[0057] After the detection is completed, the third electric push rod 62 and the hydraulic push rod 21 move upward synchronously, thereby driving the protective cover 63 to move to the original position for subsequent continued use.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knitting needle strength testing device, comprising a support (1) and a plurality of knitting needles (3), characterized in that: The support (1) is installed with a bearing platform (11), the top of the bearing platform (11) is symmetrically fixedly connected to a mounting frame (2), a plurality of knitting needles (3) are equidistantly placed inside two mounting frames (2), the top of the support (1) is fixedly connected to a hydraulic push rod (21), the movable end of the hydraulic push rod (21) is fixedly connected to a detection plate (22), a detection component (4) is installed on the side wall of the mounting frame (2), a distinguishing component (5) is symmetrically installed on the top of the bearing platform (11), and a protective component (6) is installed on the top of the support (1); The distinguishing component (5) comprises two groups of support plates (51), each of the support plates (51) is an inverted L-shaped structure, the two groups of support plates (51) are symmetrically fixedly connected to the top of the bearing platform (11), the top of the bearing platform (11) is symmetrically fixedly connected to a second electromagnet (516), the two second electromagnets (516) are respectively located on one side of an adjacent mounting frame (2), the two support plates (51) located on the same side are slidably connected to a second connecting plate (54), and the top of each support plate (51) is fixedly connected to a second electric push rod (53); The movable end of the second electric push rod (53) passes through the top wall of the support plate (51) and is fixedly connected to the top of the adjacent second connecting plate (54); a slide plate (55) is equidistantly passed through the top of each second connecting plate (54) and is slidably connected thereto; the bottom end of each slide plate (55) is fixedly connected to a clamping plate (56); the bottom end of the clamping plate (56) is an arc-shaped structure; the top end of each slide plate (55) is fixedly connected to a pressing plate (59); the bottom end of the pressing plate (59) is fixedly connected to a second spring (58); the clamping plate (56) tightly clamps the knitting needle (3); One end of the second spring (58) is fixedly connected to the top of the second connecting plate (54); the two support plates (51) located on the same side are fixedly connected to a baffle (52); the top of each pressing plate (59) is in contact with the bottom of the baffle (52); a limiting hole (57) is provided on the side wall of each sliding plate (55); and a plurality of mounting plates (510) are fixedly connected to the top of the second connecting plate (54) at equal intervals. Each side wall of the mounting plate (510) is symmetrically fixedly connected to a third spring (511), and the two third springs (511) are commonly fixedly connected to a push plate (512). One side wall of the push plate (512) is fixedly connected to a limiting plate (513), and the limiting plate (513) is slidably connected to an adjacent limiting hole (57). The other side wall of the push plate (512) is fixedly connected to a permanent magnet (515), and the side wall of the mounting plate (510) is fixedly connected to a first electromagnet (514).

2. A knitting needle strength testing device according to claim 1, characterized in that: The detection assembly (4) comprises a first electric push rod (41), the first electric push rod (41) being fixedly connected to one of the side walls of the mounting frame (2), the movable end of the first electric push rod (41) being fixedly connected to a first connecting plate (42), the first connecting plate (42) being slidably connected to the top end of the bearing platform (11), and the top end of the first connecting plate (42) being fixedly connected to a plurality of telescopic rods (43) at equal distances.

3. A knitting needle strength testing device according to claim 2, characterized in that: One end of each telescopic rod (43) is fixedly connected to an arc plate (45), each arc plate (45) is located directly below an adjacent knitting needle (3), the bottom end of each arc plate (45) is fixedly connected to a first spring (44), and one end of the first spring (44) is fixedly connected to a movable plate (46).

4. A knitting needle strength testing device according to claim 3, characterized in that: The movable plate (46) is slidably connected to the telescopic rod (43); the first spring (44) is sleeved on the outer side wall of the adjacent telescopic rod (43); the bottom end of the movable plate (46) is symmetrically fixedly connected to a first electrode sheet (47); the top end of the first connecting plate (42) is equidistantly fixedly connected to a fixed plate (48); and the top end of each fixed plate (48) is fixedly connected to a second electrode sheet (49).

5. A knitting needle strength testing device according to claim 1, characterized in that: The protective assembly (6) comprises two positioning plates (61), the two positioning plates (61) are symmetrically fixedly connected to the top of the bracket (1), each of the tops of the brackets (1) is fixedly connected to a third electric push rod (62), the movable ends of the two third electric push rods (62) penetrate the side walls of adjacent positioning plates (61) and are jointly connected to a protective cover (63), and the side walls of the protective cover (63) are symmetrically fixedly connected to a sliding block (64).

6. A knitting needle strength testing device according to claim 5, characterized in that: The top of the protective cover (63) is slidably connected to the movable end of the hydraulic push rod (21); the top of the support platform (11) is symmetrically fixedly connected with a protective plate (65); each side wall of the protective plate (65) is symmetrically provided with a sliding groove (66); each sliding block (64) is slidably connected to the inside of an adjacent sliding groove (66); and the protective cover (63) and the protective plate (65) are both made of transparent material.

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