Damping device for yarn pultrusion production line

Abstract

The invention belongs to the technical field of yarn pultrusion production, and particularly relates to a yarn pultrusion production line damping device which comprises a bottom frame, a pre-forming mold arranged above the bottom frame and a yarn feeding mechanism installed on one side of the pre-forming mold. The pressing damping assembly comprises a fixing plate fixed to the lower surface of the pre-forming mold. By adding the pressure applying and damping assembly, the vibration amplitude can be reduced, the abrasion of equipment parts caused by vibration is greatly reduced, and unnecessary loss is avoided, so that the service life of the whole equipment is prolonged, the adverse effect of vibration on the whole yarn pultrusion production line is greatly reduced, the stable operation of each link of the production line is guaranteed, and the production efficiency is improved. Vibration energy is gradually converted and dispersed, the vibration amplitude is effectively reduced, the vibration problem is fundamentally solved, and the overall stability and reliability of a production line are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of yarn pultrusion production, and in particular relates to a shock absorbing device for a yarn pultrusion production line. Background Art

[0002] In modern industrial production, yarn pultrusion production lines play an increasingly important role in the fields of textiles, composite materials, etc. In the process of yarn pultrusion production, various problems are often encountered, among which vibration problems have always been the key factor that troubles production efficiency and product quality;

[0003] At present, the existing vibration reduction measures of yarn pultrusion production lines often have certain limitations. Most of the traditional vibration reduction methods can only buffer the vibration to a certain extent, but cannot fundamentally solve the vibration problem. This leads to the frequent occurrence of vibration problems in actual production. These vibrations will not only cause increased wear of equipment parts and shorten the service life of the equipment, but also cause quality defects in the produced yarn products, resulting in the entire production line still being affected by vibration;

[0004] In order to solve the above problems, the present application proposes a vibration reduction device for a yarn pultrusion production line. Summary of the invention

[0005] To solve the problems raised in the above background technology. The present invention provides a vibration reduction device for a yarn pultrusion production line, which can reduce the vibration amplitude, greatly reduce the adverse effects of vibration on the entire yarn pultrusion production line, and reduce the probability of yarn breakage, equipment damage and other problems caused by vibration. The vibration reduction mechanism can be activated at the moment of vibration, and the vibration energy can be responded to in time, and the vibration energy can be gradually converted and dispersed, which effectively reduces the vibration amplitude and fundamentally solves the vibration problem.

[0006] To achieve the above object, the present invention provides the following technical solution: a vibration damping device for a yarn pultrusion production line, comprising a base frame, a preforming die arranged above the base frame, and a yarn feeding mechanism installed on one side of the preforming die;

[0007] A pressure damping assembly is installed on the surface of the chassis, and the pressure damping assembly includes a fixing plate fixed on the lower surface of the preforming mold, a damping spring fixed on both sides between the preforming mold and the chassis, and an extrusion column, an extrusion plate, a rubber damping pad, a bearing plate, a hydraulic shock absorber, a lower pressure plate, a pressure plate and a pressure sensor for applying pressure and damping on the upper surface of the preforming mold;

[0008] The surface of the lower pressing plate is provided with a positioning support assembly, which includes two-way telescopic rods screwed to both sides of the surface of the lower pressing plate, a support frame fixed to the output ends of two groups of the two-way telescopic rods, and a fixed frame, a swing frame, a push rod 1 and a push rod 2 for sensing the lateral amplitude generated by the preforming mold;

[0009] A compression damping assembly is installed on the surface of the lower pressure plate, and the compression damping assembly includes connecting plates symmetrically arranged on both sides of the preforming mold, abutment plates fixed to the bottom of the connecting plates, and damping springs for extrusion and damping on both sides of the preforming mold, an extrusion frame, a rack and a gear.

[0010] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, an extrusion column is welded to the middle part of the lower surface of the fixed plate, a sliding groove matched with the extrusion column is opened inside the base frame, an extrusion plate is fixed to the bottom end of the extrusion column, a rubber shock absorbing pad is arranged directly below the extrusion plate, a bearing plate is welded inside the base frame, and the rubber shock absorbing pad is fixed to the surface of the bearing plate, a plurality of groups of hydraulic shock absorbers in a rectangular array are arranged above the preforming mold, a lower pressure plate is arranged between the hydraulic shock absorber and the preforming mold, and a pressure plate is arranged between the lower pressure plate and the preforming mold, and a pressure sensor is fixed to the lower surface of the pressure plate.

[0011] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, positioning columns are symmetrically welded on both sides of the lower surface of the fixed plate, a positioning damping spring is fixed between the bottom of the positioning column and the surface of the load-bearing plate, and a sliding groove two matching with the positioning columns is opened inside the base frame, an articulated seat one is symmetrically fixed on both sides of the surface of the extrusion column, a push-pull rod is hinged inside the articulated seat one, and an articulated seat two is hinged at the other end of the push-pull rod, a limiting pulley is fixed to the bottom of the articulated seat two, and a limiting slide groove matching with the limiting pulley is opened on the surface of the base frame, and a damping spring two is fixed between the articulated seat two and the base frame.

[0012] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, a top plate is arranged above the base frame, and electric telescopic rods are fixed at the four corners between the top plate and the base frame, the hydraulic shock absorber is fixed between the lower surface of the top plate and the lower pressure plate, and a plurality of groups of buffer springs are fixed between the lower pressure plate and the pressure plate.

[0013] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, a fixed frame is fixed on the surface of the support frame, a swing frame is hinged inside the fixed frame, the bottom ends of the two groups of swing frames are movably connected with a push rod 1 through a hinge rod, and a push rod 2 is movably connected between the top ends of the two groups of swing frames through a hinge rod, and a makeshift groove matched with the hinge rod is provided inside the swing frame, and push grooves matched with the push rod 1 and the push rod 2 are respectively provided on the support frame.

[0014] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, an abutment pulley is arranged between the swing frame and the support frame, a V-shaped swing arm is arranged on the side of the swing frame surface close to the abutment pulley, and the surface of the abutment pulley is fitted with the swing frame through the swing arm.

[0015] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, a limiting rod is fixed to the side of the abutment pulley away from the swing frame, a rod groove matched with the limiting rod is opened inside the support frame, a return spring is wound around the surface of the limit rod, and the two ends of the return spring are respectively fixed between the support frame and the abutment pulley, a contact plate is fixed to the end of the push rod away from the swing frame, and a pressure sensor of the same specification as the lower surface of the pressure plate is fixed to the surface of the contact plate.

[0016] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, abutting slide bars are fixed on the surface of the fixed frame, the surface of the abutting slide bars are slidably connected with fixing ears, the connecting plate and the fixing ears are fixedly connected, abutting plates are fixed on the bottom of the connecting plate, and damping springs three are symmetrically fixed on opposite sides of two groups of the abutting plates.

[0017] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, a pushing frame is symmetrically fixed between the two ends of the two groups of push rods, the two groups of pushing frames are respectively located on the opposite sides of the two groups of connecting plates, and a positioning frame with a U-shaped structure is provided on the side of the pushing frame close to the connecting plate, a gear is provided between the two groups of connecting plates, and racks are meshed and connected with both sides of the surface of the gear in a center-symmetrical manner, and the two groups of racks are respectively fixedly connected to the two groups of connecting plates.

[0018] As a preferred shock absorbing device for a yarn pultrusion production line of the present invention, a sliding frame is fixed on the surface of the lower pressure plate, and the rack is slidably connected to the surface of the sliding frame, a rotating frame is fixed on the surface of the lower pressure plate, and the gear is rotatably connected to the inside of the rotating frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By adding a pressure damping component, through the coordinated use of the fixed plate, damping spring 1, extrusion column, extrusion plate, rubber shock-absorbing pad, bearing plate, hydraulic shock absorber, lower pressure plate, pressure plate and pressure sensor and other structures provided in the component, the extrusion of the rubber shock-absorbing pad can reduce the vibration amplitude, greatly reduce the wear of equipment parts caused by vibration, avoid unnecessary losses, thereby extending the service life of the entire equipment, greatly reducing the adverse effects of vibration on the entire yarn pultrusion production line, and reducing the probability of yarn breakage and equipment damage caused by vibration. The shock absorption mechanism is activated at the moment of vibration, and the vibration is responded to in time, so that the influence of vibration on the entire yarn pultrusion production line is greatly reduced, the stable operation of each link of the production line is guaranteed, the vibration energy is gradually converted and dispersed, the vibration amplitude is effectively reduced, the vibration problem is fundamentally solved, and the overall stability and reliability of the production line are improved.

[0021] 2. By adding a positioning support component, the vibration force is transmitted to the surface of the contact plate through the coordinated use of the two-way telescopic rod, support frame, fixed frame, swing frame, push rod one and push rod two structures provided in the component, so as to push and pull the swing frame to flip inside the fixed frame, thereby being able to transmit vibration to the preform mold, and making full preparations for subsequent shock absorption work, ensuring a rapid response when vibration occurs, effectively reducing the impact of vibration on the equipment, and cooperating with the compression and release of the damping spring three to timely absorb and buffer the vibration force and maximize the shock absorption effect.

[0022] 3. By adding a compression shock-absorbing component, through the coordinated use of the connecting plate, abutment plate, damping spring three, extrusion frame, rack and gear and other structures provided in the component, the damping spring three is squeezed so that it is tightly attached to the surface of the preforming mold for loading and compression and storing energy, and then a force in the opposite direction can be generated. This force in the opposite direction can effectively suppress the vibration of the preforming mold, further reduce the vibration amplitude, and achieve the shock-absorbing effect. By converting the vibration energy generated by the preforming mold into the elastic potential energy of the damping spring three, effective energy storage is achieved. At the moment of vibration, the damping spring three can respond quickly, effectively reducing the spread and impact of vibration, and absorbing vibration energy through compression to reduce the impact of vibration on the preforming mold and the entire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 For the present invention Figure 1 A rear view structural diagram of ;

[0026] Figure 3 It is a schematic diagram of the structure of the preforming mold and the pressure damping assembly in the present invention;

[0027] Figure 4 It is a schematic structural diagram of a damping spring 1 and a rubber shock-absorbing pad in the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the preforming mold and the pressure plate in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the fixing plate, the positioning column and the extrusion column in the present invention;

[0030] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement at point A;

[0031] Figure 8 It is a schematic diagram of the structure of the top plate and the pressure plate in the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the positioning support component and the compression shock absorbing component in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the preforming mold and the positioning support assembly in the present invention;

[0034] Fig.11 It is a structural schematic diagram of the support frame and the swing frame in the present invention;

[0035] Fig.12 For the present invention Fig.11 A schematic diagram of the structure at B in FIG.

[0036] Fig.13 It is a structural schematic diagram of the swing frame, the first push rod and the second push rod in the present invention;

[0037] Fig.14 It is a schematic diagram of the structure of the preforming mold and the compression damping assembly in the present invention;

[0038] Fig.15 It is a schematic structural diagram of the push rod 2, the connecting plate and the pushing frame in the present invention.

[0039] In the figure:

[0040] 1. Base frame;

[0041] 2. Preforming mold;

[0042] 3. Yarn feeding mechanism;

[0043] 4. Pressure damping assembly; 41. Fixed plate; 42. Positioning column; 43. Damping spring 1; 44. Extrusion column; 45. Articulated seat 1; 46. Push-pull rod; 47. Articulated seat 2; 48. Limiting pulley; 49. Damping spring 2; 410. Extrusion plate; 411. Rubber shock pad; 412. Loading plate; 413. Top plate; 414. Hydraulic shock absorber; 415. Electric telescopic rod; 416. Pressure sensor; 417. Lower pressure plate; 418. Buffer spring; 419. Pressure plate; 420. Positioning damping spring;

[0044] 5. Positioning support assembly; 51. Bidirectional telescopic rod; 52. Support frame; 53. Fixed frame; 54. Swing frame; 55. Abutting pulley; 56. Limiting rod; 57. Return spring; 58. Push rod 1; 59. Contact plate; 510. Push rod 2;

[0045] 6. Compression damping assembly; 61. Abutment slide bar; 62. Fixing ear; 63. Connecting plate; 64. Abutment plate; 65. Damping spring three; 66. Push frame; 67. Rack; 68. Sliding frame; 69. Gear; 610. Rotating frame. DETAILED DESCRIPTION

[0046] 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.

[0047] Example: Figure 1-Figure 15 As shown, the present invention provides a technical solution, a vibration reduction device for a yarn pultrusion production line, comprising a base frame 1, a preforming die 2 arranged above the base frame 1, and a yarn feeding mechanism 3 installed on one side of the preforming die 2;

[0048] A pressure damping assembly 4 is installed on the surface of the base frame 1, and the pressure damping assembly 4 includes a fixing plate 41, a positioning column 42, a damping spring 1 43, an extrusion column 44, a hinge seat 1 45, a push-pull rod 46, a hinge seat 2 47, a limiting pulley 48, a damping spring 2 49, an extrusion plate 410, a rubber damping pad 411, a bearing plate 412, a top plate 413, a hydraulic shock absorber 414, an electric telescopic rod 415, a pressure sensor 416, a lower pressure plate 417, a buffer spring 418 and a pressure plate 419;

[0049] A fixing plate 41 is fixed on both sides of the lower surface of the preforming mold 2, a damping spring 43 is fixed on both sides between the preforming mold 2 and the base frame 1, an extrusion column 44 is welded in the middle of the lower surface of the fixing plate 41, a sliding groove 1 adapted to the extrusion column 44 is provided inside the base frame 1, an extrusion plate 410 is fixed to the bottom end of the extrusion column 44, a rubber shock-absorbing pad 411 is arranged directly below the extrusion plate 410, a bearing plate 412 is welded inside the base frame 1, and the rubber shock-absorbing pad 411 is fixed to the surface of the bearing plate 412, a plurality of groups of hydraulic shock absorbers 414 in a rectangular array are arranged above the preforming mold 2, a lower pressure plate 417 is arranged between the hydraulic shock absorber 414 and the preforming mold 2, and a pressure plate 419 is arranged between the lower pressure plate 417 and the preforming mold 2, and a pressure sensor 416 is fixed to the lower surface of the pressure plate 419 By squeezing the damping spring 43 to deform, the damage to the preform mold 2 caused by vibration can be reduced, the negative effects of vibration can be reduced, and the yarn can be ensured to run in a relatively stable environment, which is helpful to ensure the quality of the yarn and reduce the production of defective products. The rubber shock-absorbing pad 411 uses its own elastic characteristics to preliminarily buffer the vibration transmitted by the extrusion column 44, reducing the direct impact of vibration on the entire device. By squeezing the rubber shock-absorbing pad 411, the vibration amplitude can be reduced, which greatly reduces the adverse effects of vibration on the entire yarn pultrusion production line, and reduces the probability of yarn breakage, equipment damage and other problems caused by vibration. The shock-absorbing mechanism is activated at the moment of vibration, and the vibration is responded to in time. The vibration energy is gradually converted and dispersed, which effectively reduces the vibration amplitude and fundamentally solves the vibration problem.

[0050] Positioning columns 42 are symmetrically welded on both sides of the lower surface of the fixing plate 41, and a positioning damping spring 420 is fixed between the bottom of the positioning column 42 and the surface of the bearing plate 412, and a sliding groove 2 adapted to the positioning column 42 is provided inside the bottom frame 1, and a hinge seat 1 45 is symmetrically fixed on both sides of the surface of the extrusion column 44, and a push-pull rod 46 is hinged inside the hinge seat 1 45, and a hinge seat 2 47 is hinged on the other end of the push-pull rod 46, and a limited pulley 48 is fixed at the bottom of the hinge seat 2 47, and a limited pulley 48 is provided on the surface of the bottom frame 1. A damping spring 2 49 is fixed between the limiting slide groove, the hinge seat 2 47 and the base frame 1. The damping spring 2 49 further consumes vibration energy and enhances the shock absorption effect through its own expansion and contraction and damping characteristics. By squeezing the damping spring 2 49 to deform, it can not only further effectively absorb the vibration of the preforming mold 2 and the fixed plate 41, but also buffer the impact force of the extrusion column 44 driving the extrusion plate 410 to squeeze the rubber shock-absorbing pad 411, thereby ensuring that the rubber shock-absorbing pad 411 is squeezed while protecting the rubber shock-absorbing pad 411 from damage.

[0051] A top plate 413 is arranged above the bottom frame 1, and electric telescopic rods 415 are fixed at the four corners between the top plate 413 and the bottom frame 1, and hydraulic shock absorbers 414 are fixed between the lower surface of the top plate 413 and the lower pressure plate 417, and a plurality of groups of buffer springs 418 are fixed between the lower pressure plate 417 and the pressure plate 419. The electric telescopic rod 415 can adjust the height of the top plate 413 according to actual needs to adapt to different working conditions, and the hydraulic shock absorbers 414 are fixed between the lower surface of the top plate 413 and the lower pressure plate 417. 17, when the preforming mold 2 is vibrated, the vibration is first transmitted to the lower pressure plate 417, and the hydraulic shock absorber 414 uses the flow resistance of the hydraulic oil to buffer and attenuate the vibration. Several groups of buffer springs 418 fixed between the lower pressure plate 417 and the pressure plate 419 further buffer the vibration. The pressure sensor 416 fixed on the lower surface of the pressure plate 419 monitors the pressure changes on the pressure plate 419 in real time, and feeds back to the control system so as to adjust and optimize the entire shock absorption process.

[0052] The surface of the lower pressing plate 417 is provided with a positioning support assembly 5, which includes a bidirectional telescopic rod 51, a supporting frame 52, a fixing frame 53, a swinging frame 54, an abutting pulley 55, a limiting rod 56, a return spring 57, a push rod 1 58, a contact plate 59 and a push rod 2 510;

[0053] Two sides of the surface of the lower pressure plate 417 are screwed with two-way telescopic rods 51, and the output ends of the two groups of two-way telescopic rods 51 are symmetrically fixed with support frames 52, and a fixed frame 53 is fixed on the surface of the support frame 52, and a swing frame 54 is hinged inside the fixed frame 53, and the bottom ends of the two groups of swing frames 54 are movably connected with a push rod 1 58 through a hinge rod, and a push rod 2 510 is movably connected between the top ends of the two groups of swing frames 54 through a hinge rod, and a makeshift groove matched with the hinge rod is provided inside the swing frame 54, and push grooves matched with the push rod 1 58 and the push rod 2 510 are respectively provided on the support frame 52, so that the push rod 1 58 slides inside the support frame 52, thereby pushing and pulling the swing frame 54 to flip inside the fixed frame 53, and driving the push rod 2 510 to slide inside the support frame 52 in the direction opposite to the push rod 1 58.

[0054] An abutting pulley 55 is arranged between the swing frame 54 and the support frame 52 , and a V-shaped swing arm is arranged on the side of the swing frame 54 close to the abutting pulley 55 , and the surface of the abutting pulley 55 is fitted with the swing frame 54 through the swing arm.

[0055] A limiting rod 56 is fixed to the side of the abutting pulley 55 away from the swing frame 54, and a rod groove matched with the limiting rod 56 is opened inside the supporting frame 52, and a return spring 57 is wound around the surface of the limiting rod 56, and the two ends of the return spring 57 are respectively fixed between the supporting frame 52 and the abutting pulley 55, and a contact plate 59 is fixed to the end of the push rod 58 away from the swing frame 54, and a pressure sensor 416 of the same specification as the lower surface of the pressure plate 419 is fixed on the surface of the contact plate 59, so that the extrusion force between the contact plate 59 and the preforming mold 2 can meet the positioning requirement, and the elastic force of the return spring 57 can not only make the abutting pulley 55 close to the surface of the swing frame 54, but also make the swing frame 54 maintain a neutral balance state in the initial state.

[0056] The surface of the lower pressing plate 417 is provided with a compression damping assembly 6, which includes abutting slide bar 61, a fixing ear 62, a connecting plate 63, abutting plate 64, a damping spring 3 65, a pushing frame 66, a rack 67, a sliding frame 68, a gear 69 and a rotating frame 610;

[0057] Connecting plates 63 are symmetrically arranged on both sides of the preforming mold 2, and a supporting plate 64 is fixed to the bottom of the connecting plate 63, a supporting slide bar 61 is fixed to the surface of the fixing frame 53, and a fixing ear 62 is slidably connected to the surface of the supporting slide bar 61, the connecting plate 63 and the fixing ear 62 are fixedly connected, and a supporting plate 64 is fixed to the bottom of the connecting plate 63, and damping springs three 65 are symmetrically fixed to the opposite sides of the two groups of supporting plates 64, so that the damping springs three 65 release the accumulated loading energy and generate a force in the opposite direction. This force in the opposite direction can effectively suppress the vibration of the preforming mold 2, further reduce the vibration amplitude, and achieve the shock absorption effect, and convert the vibration energy generated by the preforming mold 2 into the elastic potential energy of the damping springs three 65, so as to achieve effective energy storage, and at the moment of vibration, the damping springs three 65 can respond quickly, effectively reduce the spread and influence of vibration, and absorb vibration energy by compression, so as to reduce the influence of vibration on the preforming mold 2 and the entire production line.

[0058] A pushing frame 66 is symmetrically fixed between the two ends of the two groups of push rods 510, and the two groups of pushing frames 66 are respectively located on the opposite sides of the two groups of connecting plates 63, and a U-shaped positioning frame is provided on the side of the pushing frame 66 close to the connecting plate 63. A gear 69 is provided between the two groups of connecting plates 63, and racks 67 are symmetrically meshed and connected on both sides of the surface of the gear 69, and the two groups of racks 67 are respectively fixedly connected to the two groups of connecting plates 63.

[0059] A sliding frame 68 is fixed to the surface of the lower pressure plate 417, and the rack 67 is slidably connected to the surface of the sliding frame 68. A rotating frame 610 is fixed to the surface of the lower pressure plate 417, and the gear 69 is rotatably connected to the inside of the rotating frame 610, which can apply pressure to both sides of the preforming mold 2 for shock absorption. This two-way shock absorption effect can better cope with vibration forces in different directions, improve the shock absorption effect, and can automatically adjust the compression and release degree of the damping spring three 65 according to the vibration condition of the preforming mold 2 to achieve effective shock absorption.

[0060] Working principle and use process of the present invention: When the shock absorbing device of the yarn pultrusion production line is in use, the yarn is first fed into the interior of the preforming mold 2 through the yarn feeding mechanism 3, so that it continuously undergoes a chemical reaction with the internal glue, and then the electric telescopic rod 415 is controlled to start, thereby driving the top plate 413 to approach the surface of the preforming mold 2. The downward movement of the top plate 413 can drive the hydraulic shock absorber 414 and the lower pressure plate 417 to move downward synchronously, thereby driving the buffer spring 418 and the pressure plate 419 to move downward. When the pressure sensor 416 installed on the surface of the pressure plate 419 contacts the surface of the preforming mold 2, the pressure sensor 416 will generate a piezoelectric signal. Through the continuous downward movement of the top plate 413, the piezoelectric signal generated by the pressure sensor 416 will also increase accordingly. When the piezoelectric signal generated by the pressure sensor 416 reaches When the threshold is reached, it means that the pressure between the pressure plate 419 and the preforming mold 2 reaches the clamping requirement. At this time, the pressure plate 419 just fits against the surface of the preforming mold 2 and does not apply pressure to the preforming mold 2. Then the electric telescopic rod 415 will close automatically. When the yarn is obstructed from running inside the preforming mold 2, the preforming mold 2 will vibrate. At this time, the up and down vibrations generated by the preforming mold 2 will be transmitted to the surface of the fixed plate 41, thereby driving the fixed plate 41 to vibrate up and down synchronously, thereby driving the positioning column 42 and the extrusion column 44 to slide in the movable groove opened inside the base frame 1, and squeezing the damping spring 43 to deform, thereby reducing the damage to the preforming mold 2 caused by the vibration, reducing the negative effects brought by the vibration, and ensuring that the yarn runs in a relatively stable environment, which helps to ensure the quality of the yarn and reduce the production of defective products.

[0061] At the same time, through the movement of the extrusion column 44, the articulated seat 1 45 can be driven to move. With the cooperation of the push-pull rod 46, the articulated seat 2 47 and the limiting pulley 48 can be driven to slide in the limiting slide groove opened on the surface of the base frame 1, thereby squeezing the damping spring 2 49 to deform, which can not only further effectively absorb the vibration of the preforming mold 2 and the fixed plate 41, but also buffer the impact force of the extrusion column 44 driving the extrusion plate 410 to squeeze the rubber shock-absorbing pad 411. By squeezing the rubber shock-absorbing pad 411, the vibration amplitude can be reduced, which greatly reduces the adverse effects of vibration on the entire yarn extrusion production line, reduces the probability of yarn breakage, equipment damage and other problems caused by vibration, and realizes the effective transfer and utilization of energy. The shock-absorbing mechanism can be started at the moment of vibration, respond to the vibration in time, and gradually transform and disperse the vibration energy, which effectively reduces the vibration amplitude and fundamentally solves the vibration problem.

[0062] It is worth noting that the buffer spring 418 can provide a stable reaction force during the extrusion process, so that the pressure plate 419 always maintains close contact with the surface of the preform mold 2. This stable contact helps to reduce the transmission of vibration, achieve a shock-absorbing effect, and improve the stability of the entire production line.

[0063] Furthermore, before the yarn running is blocked, the two-way telescopic rod 51 is controlled to start, thereby driving the two groups of support frames 52 to approach the surface of the preforming mold 2, thereby driving the fixed frame 53 and the swing frame 54 inside it to move synchronously, and then the movement of the swing frame 54 drives the push rod 1 58 and the contact plate 59 at its end to move synchronously. When the contact plate 59 contacts the surface of the preforming mold 2, the pressure sensor 416 inside it will also generate a piezoelectric signal until the extrusion force between the contact plate 59 and the preforming mold 2 reaches the positioning requirement, and then the two-way telescopic rod 51 will close automatically. When the preforming mold 2 vibrates, it can transmit the vibration force to the surface of the contact plate 59, thereby driving the push rod 1 58 to slide inside the support frame 52, thereby pushing and pulling the swing frame 54 to flip inside the fixed frame 53, and driving the push rod 2 510 to slide inside the support frame 52 in the opposite direction of the push rod 1 58. The movement of the pushing frame 66 can drive the synchronous movement, thereby pushing the connecting plate 63 on the side with the same moving direction as the pushing frame 66 to move, and driving the fixed ear 62 to slide on the surface of the slide bar 61, which can drive the abutment plate 64 at the bottom of the connecting plate 63 to squeeze the damping spring three 65, so that it is tightly attached to the surface of the preforming mold 2 for loading, compression and energy storage. When the preforming mold 2 moves in the opposite direction due to the influence of vibration, the damping spring three 65 releases the accumulated loading energy and generates a force in the opposite direction. This force in the opposite direction can effectively suppress the vibration of the preforming mold 2, further reduce the vibration amplitude, and achieve the shock absorption effect. By converting the vibration energy generated by the preforming mold 2 into the elastic potential energy of the damping spring three 65, effective energy storage is achieved. At the moment of vibration, the damping spring three 65 can respond quickly, effectively reduce the spread and influence of vibration, and absorb vibration energy by compression to reduce the influence of vibration on the preforming mold 2 and the entire production line.

[0064] During this period, the movement of the connecting plate 63 can drive the rack 67 fixed on its surface to slide inside the sliding frame 68, and then drive the gear 69 to rotate inside the rotating frame 610, thereby driving another set of racks 67 to slide in the opposite direction inside the corresponding sliding frame 68, and can drive another set of connecting plates 63 and abutting plates 64 to squeeze the corresponding damping spring three 65 for compression. By applying pressure to both sides of the preforming mold 2 for shock absorption, this two-way shock absorption effect can better cope with vibration forces in different directions, improve the shock absorption effect, and can automatically adjust the compression and release degree of the damping spring three 65 according to the vibration condition of the preforming mold 2 to achieve effective shock absorption.

[0065] Furthermore, during the flipping process of the swing frame 54, the abutment pulley 55 can be squeezed to drive the limit rod 56 to slide inside the support frame 52, and the reset spring 57 can be squeezed to deform and generate elastic force. Through the elastic force of the reset spring 57, not only can the abutment pulley 55 be tightly attached to the surface of the swing frame 54, but also the swing frame 54 can maintain a neutral balance state in the initial state. The contact plate 59 is used to transmit the vibration of the pre-forming mold 2, which can make sufficient preparations for the subsequent shock absorption work and ensure a rapid response when the vibration occurs, effectively reducing the impact of the vibration on the equipment, and cooperating with the compression and release of the damping spring three 65, the vibration force is absorbed and buffered in time to maximize the shock absorption effect.

[0066] It is worth noting that in the initial state, the preforming mold 2 will squeeze the damping spring 43, the damping spring 49 and the positioning damping spring 420 to deform under the action of gravity, and the reaction force of the damping spring 43, the damping spring 49 and the positioning damping spring 420 is used to support the preforming mold 2, so that the extrusion plate 410 just fits on the surface of the rubber shock-absorbing pad 411 or slightly squeezes the rubber shock-absorbing pad 411 to deform, ensuring that the rubber shock-absorbing pad 411 still has a large deformation range, providing a good buffering and shock-absorbing foundation for subsequent work, effectively reducing the adverse effects of factors such as vibration on the mold and the processing process, and improving the stability and accuracy of the processing. When the pressure plate 419 contacts the surface of the preforming mold 2, the contact plate 59 will be close to the side surface of the preforming mold 2, thereby positioning the preforming mold 2, stabilizing the preforming mold 2, avoiding its own shaking, preventing resonance, and ensuring the continuity and stability of the processing.

[0067] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibration damping device for a yarn pultrusion production line, comprising a base frame (1), a preforming die (2) arranged above the base frame (1), and a yarn feeding mechanism (3) installed on one side of the preforming die (2); Features: A pressure damping assembly (4) is installed on the surface of the base frame (1), and the pressure damping assembly (4) comprises a fixing plate (41) fixed to the lower surface of the preforming mold (2), a damping spring (43) fixed on both sides between the preforming mold (2) and the base frame (1), and an extrusion column (44) for applying pressure and damping the upper surface of the preforming mold (2), an extrusion plate (410), a rubber damping pad (411), a bearing plate (412), a hydraulic shock absorber (414), a lower pressure plate (417), a pressure plate (419) and a pressure sensor (416); A positioning support assembly (5) is installed on the surface of the lower pressing plate (417), and the positioning support assembly (5) includes two-way telescopic rods (51) connected to both sides of the surface of the lower pressing plate (417) by screws, a support frame (52) fixed to the output ends of two groups of the two-way telescopic rods (51), and a fixed frame (53) for sensing the lateral amplitude generated by the preforming mold (2), a swing frame (54), a push rod 1 (58) and a push rod 2 (510); A compression damping assembly (6) is installed on the surface of the lower pressure plate (417), and the compression damping assembly (6) comprises connecting plates (63) symmetrically arranged on both sides of the preforming mold (2), abutting plates (64) fixed to the bottom of the connecting plates (63), and damping spring three (65), an extrusion frame (66), a rack (67) and a gear (69) for performing extrusion damping on both sides of the preforming mold (2).

2. The vibration damping device for yarn pultrusion production line according to claim 1 is characterized in that: An extrusion column (44) is welded to the middle of the lower surface of the fixed plate (41), a sliding groove matched with the extrusion column (44) is provided inside the base frame (1), an extrusion plate (410) is fixed to the bottom end of the extrusion column (44), a rubber shock-absorbing pad (411) is arranged directly below the extrusion plate (410), a bearing plate (412) is welded inside the base frame (1), and the rubber shock-absorbing pad (411) is fixed to the surface of the bearing plate (412), a plurality of groups of hydraulic shock absorbers (414) in a rectangular array are arranged above the preforming mold (2), a lower pressure plate (417) is arranged between the hydraulic shock absorber (414) and the preforming mold (2), and a pressure plate (419) is arranged between the lower pressure plate (417) and the preforming mold (2), and a pressure sensor (416) is fixed to the lower surface of the pressure plate (419).

3. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: Positioning columns (42) are symmetrically welded on both sides of the lower surface of the fixing plate (41), a positioning damping spring (420) is fixed between the bottom of the positioning column (42) and the surface of the bearing plate (412), and a sliding groove (2) adapted to the positioning column (42) is provided inside the base frame (1), and a hinge seat (45) is symmetrically fixed on both sides of the surface of the extrusion column (44), a push-pull rod (46) is hinged inside the hinge seat (45), and a hinge seat (47) is hinged at the other end of the push-pull rod (46), a limiting pulley (48) is fixed at the bottom of the hinge seat (47), and a limiting sliding groove adapted to the limiting pulley (48) is provided on the surface of the base frame (1), and a damping spring (49) is fixed between the hinge seat (47) and the base frame (1).

4. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: A top plate (413) is provided above the bottom frame (1), and electric telescopic rods (415) are fixed at the four corners between the top plate (413) and the bottom frame (1), the hydraulic shock absorber (414) is fixed between the lower surface of the top plate (413) and the lower pressure plate (417), and a plurality of groups of buffer springs (418) are fixed between the lower pressure plate (417) and the pressure plate (419).

5. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: A fixed frame (53) is fixed on the surface of the support frame (52), and a swing frame (54) is hinged inside the fixed frame (53). The bottom ends of the two groups of swing frames (54) are movably connected to a first push rod (58) via a hinge rod, and the top ends of the two groups of swing frames (54) are movably connected to a second push rod (510) via a hinge rod, and a clearance groove matched with the hinge rod is provided inside the swing frame (54), and push grooves matched with the first push rod (58) and the second push rod (510) are respectively provided on the support frame (52).

6. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: An abutting pulley (55) is provided between the swing frame (54) and the support frame (52); a V-shaped swing arm is provided on a side of the surface of the swing frame (54) close to the abutting pulley (55); and the surface of the abutting pulley (55) is fitted to the swing frame (54) via the swing arm.

7. The vibration damping device for yarn pultrusion production line according to claim 6, characterized in that: A limiting rod (56) is fixed to the side of the abutting pulley (55) away from the swing frame (54); a rod groove matched with the limiting rod (56) is opened inside the support frame (52); a return spring (57) is wound around the surface of the limiting rod (56), and the two ends of the return spring (57) are respectively fixed between the support frame (52) and the abutting pulley (55); a contact plate (59) is fixed to the end of the push rod (58) away from the swing frame (54); and a pressure sensor (416) of the same specification as the lower surface of the pressure plate (419) is fixed to the surface of the contact plate (59).

8. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: A contact slide bar (61) is fixed to the surface of the fixing frame (53), a fixing ear (62) is slidably connected to the surface of the contact slide bar (61), the connecting plate (63) and the fixing ear (62) are fixedly connected, a contact plate (64) is fixed to the bottom of the connecting plate (63), and damping springs (65) are symmetrically fixed to opposite sides of two groups of the contact plates (64).

9. The vibration damping device for yarn pultrusion production line according to claim 1, characterized in that: A pushing frame (66) is symmetrically fixed between the two ends of the two groups of push rods (510), and the two groups of pushing frames (66) are respectively located on opposite sides of the two groups of connecting plates (63), and a positioning frame with a U-shaped structure is provided on the side of the pushing frame (66) close to the connecting plate (63). A gear (69) is provided between the two groups of connecting plates (63), and racks (67) are meshed and connected with the two sides of the surface of the gear (69) in a centrally symmetrical manner, and the two groups of racks (67) are respectively fixedly connected to the two groups of connecting plates (63).

10. The vibration damping device for yarn pultrusion production line according to claim 9, characterized in that: A sliding frame (68) is fixed on the surface of the lower pressing plate (417), and the rack (67) is slidably connected to the surface of the sliding frame (68). A rotating frame (610) is fixed on the surface of the lower pressing plate (417), and the gear (69) is rotatably connected to the inside of the rotating frame (610).

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