Spraying and injection molding system for seat belt steel wire rope

Abstract

The present invention relates to the technical field of wire rope processing, and particularly relates to a spraying and injection molding system for a safety belt wire rope, which includes a workbench, an injection molding unit, a pretreatment unit, and a feeding unit; the present invention can solve the following problems existing in the process of injecting plastic into a wire rope in the prior art: the wire rope cannot be subjected to corresponding cleaning treatment, and dust and impurities easily form voids between the molten plastic and the wire rope, affecting the adhesion between the molten plastic and the wire rope; the surface of the wire rope is usually a smooth surface, which easily leads to a lack of friction between the molten plastic and the wire rope, thereby affecting the stability between the plastic layer and the wire rope, and further affecting the use safety performance; the present invention can automatically convey, clean, and spray the wire rope in sequence. After removing the dust and impurities on the surface of the wire rope, spraying a coating can enhance the wear resistance and corrosion resistance of the wire rope, and ensure the stability of the plastic sleeve after injection molding, and can ensure the use safety performance.

Description

Technical Field

[0001] The present invention relates to the technical field of wire rope processing, and particularly relates to a spraying and injection molding system for safety belt wire ropes. Background Art

[0002] Safety belt wire ropes are important components used in personal protective equipment, mainly for safety protection in occasions such as high-altitude operations, rock climbing, and rescue. Safety belt wire ropes are twisted from multiple strands of high-strength steel wires, having high strength and toughness, and being able to withstand large tensile forces without being easily broken, thereby ensuring the safety of users.

[0003] In order to extend the service life of safety belt wire ropes, spraying and injection molding treatments are usually carried out on their outer walls in sequence, so as to strengthen the safety belt wire ropes, enhance their wear resistance and service life, and also increase the friction force of the safety belt wire ropes, thereby improving safety.

[0004] However, there are usually some problems when wire ropes are being sprayed and injection molded at present. With the development of technology, technicians in related fields have also carried out a large number of optimizations on the spraying and injection molding means of wire ropes. For more accurate comparison, for example, Chinese Patent with publication number CN115179524A discloses a steel wire rope surface injection molding production method. Among them, the steel wire rope surface injection molding equipment includes a tractor, a steel wire rope heating device, a plastic extruder, a water tank, and a winding machine arranged in sequence; the steel wire rope surface injection molding die includes a die core, the head of the die core is connected to a mandrel, the tail of the die core is connected to a rear sealing plug plate, an inner sleeve is connected between the mandrel and the rear sealing plug plate, and a medium flow channel is provided between the mandrel, the inner sleeve and the die sleeve.

[0005] When the above-mentioned prior art injects plastic into the wire rope, the wire rope enters the steel wire rope heating device through the tractor and reaches the steel wire rope surface injection molding die of the plastic extruder. The plastic in the plastic extruder is heated to a molten state and then enters the medium flow channel, and then flows onto the heated wire rope surface for injection molding. After injection molding, the wire rope is cooled and shaped by the water tank, and the finished injection molded wire rope is wound by the winding machine.

[0006] However, there are still some deficiencies in the above-mentioned prior art during the process of injecting plastic into the wire rope:

[0007] 1. Since dust and other impurities are likely to adhere to the surface of the wire rope during the production process, and the above-mentioned prior art cannot perform corresponding cleaning treatment on the wire rope, dust and impurities are likely to form voids between the molten plastic and the wire rope, resulting in difficulty for the molten plastic to firmly adhere to the surface of the wire rope, thereby affecting the adhesion between the molten plastic and the wire rope and easily causing the plastic layer to fall off after cooling and shaping.

[0008] 2. Additionally, since the surface of the wire rope is usually smooth, it is likely to cause a lack of friction when molten plastic is injected onto the surface of the wire rope, thus affecting the stability between the plastic layer and the wire rope after cooling and shaping. Furthermore, it is likely to cause slippage or rotation between the plastic layer and the wire rope, affecting the safety during the later use process.

[0009] Therefore, under the viewpoints stated above, there is still room for improvement in the existing wire rope spraying and injection means. Summary of the Invention

[0010] To solve the above problems, the present invention provides a spraying and injection system for a seat belt wire rope, which includes a workbench. An injection unit, a pretreatment unit, and a feeding unit are arranged at the upper end of the workbench. The injection unit and the feeding unit are symmetrically arranged along the pretreatment unit. The pretreatment unit includes an annular frame installed in the middle of the upper end of the workbench. The injection unit includes a support seat installed at the upper end of the workbench. The support seat is located on the side of the annular frame away from the conveyor belt. An injection mold is installed at the upper end of the support seat. The feeding unit includes two conveyor belts installed at the upper end of the workbench, and the two conveyor belts are symmetrically distributed along the axis of the annular frame.

[0011] As a preferred technical solution of the present invention, the injection unit further includes a fixed mold base arranged in the middle of the upper end of the support seat. Hydraulic cylinders are installed at the four corners of the upper end of the support seat. The telescopic ends of the multiple hydraulic cylinders slide through the fixed mold base together and are provided with a movable mold base. The injection mold is installed between the fixed mold base and the movable mold base;

[0012] A linkage plate is arranged at the upper end of the movable mold base through multiple support rods. An injection machine is arranged at the upper end of the linkage plate. The output end at the bottom of the injection machine is installed with an injection pipe located between the linkage plate and the movable mold base.

[0013] As a preferred technical solution of the present invention, the injection mold is composed of a lower mold installed at the upper end of the fixed mold base and an upper mold installed at the lower end of the movable mold base. Mutually matching material placing grooves are opened on the opposite sides of the upper mold and the lower mold. An injection groove is opened in the middle of the material placing groove. The injection groove of the upper mold is communicated with the injection pipe.

[0014] As a preferred technical solution of the present invention, tapered grooves with gradually increasing diameters are opened at both ends of the material placing groove of the lower mold. An L-shaped frame is arranged at the end of the lower mold away from the annular frame. The horizontal section of the L-shaped frame is a telescopic plate with an adjustable length. The vertical section of the L-shaped frame includes a connecting plate installed at the upper end of the telescopic plate. A baffle is rotatably connected to the upper end of the connecting plate through a torsion spring. A support pad is installed between the baffle and the connecting plate.

[0015] As a preferred technical solution of the present invention, the pretreatment unit further includes two stabilizing plates installed on the upper end of the workbench, the two stabilizing plates are symmetrically distributed along the width direction of the workbench, and two supporting frames are symmetrically arranged on the opposite sides of the two stabilizing plates along the width direction of the annular frame, and the outer wall of the annular frame is provided with two annular grooves rotatably sleeved on the supporting frames;

[0016] A ring-shaped bevel gear ring is provided on the fixed sleeve of the outer wall of the annular frame, and a bevel gear is provided on one side of any stabilizing plate close to the annular frame through the rotation of the positioning shaft, and the bevel gear is meshed with the ring-shaped bevel gear ring. A driving motor connected to the positioning shaft is installed on the stabilizing plate through a motor seat, and a cleaning component for removing impurities from the outer wall of the wire rope and a spray component for spraying a coating on the outer wall of the wire rope are installed on the inner wall of the annular frame.

[0017] As a preferred technical solution of the present invention, the cleaning component includes a replenishing chamber opened inside the annular frame near the feeding unit, a feed check valve connected to the outside is installed at any point on the side wall of the replenishing chamber, and a plurality of discharge ports connected to the replenishing chamber are opened on the inner wall of the annular frame;

[0018] Support spring rods are installed on both sides of each discharge port on the inner wall of the annular frame. The support spring rods on both sides of the discharge port are jointly provided with a connecting seat for cleaning the outer wall of the wire rope near the axis of the annular frame. A water storage cavity is opened inside the connecting seat, and a telescopic cylinder is installed between the water storage cavity and the discharge port. A plurality of through holes connected to the water storage cavity are opened on the side of the connecting seat away from the telescopic cylinder.

[0019] As a preferred technical solution of the present invention, the spraying assembly includes a material storage chamber opened inside the annular frame on a side away from the feeding unit, a feed valve connected to the outside is installed on the side wall of the material storage chamber, a plurality of discharge ports connected to the material storage chamber are opened on the inner wall of the annular frame, and a coating head is installed on the side of the discharge port close to the axis of the annular frame through a telescopic tube;

[0020] An auxiliary plate is installed on the outer wall of the coating head. Two top extension spring rods are symmetrically arranged between the auxiliary plate and the inner wall of the annular frame along the telescopic tube. A resistance wheel is installed on the side of the auxiliary plate close to the axis of the annular frame. The resistance wheel is located on the side of the coating head close to the connecting seat.

[0021] As a preferred technical solution of the present invention, the feeding unit also includes two vertical plates installed on the upper end of the workbench, the two vertical plates are symmetrically distributed along the width direction of the workbench, two conveyor belts are symmetrically arranged on the upper and lower sides of the opposite sides of the two vertical plates, and multiple limiting shafts are symmetrically rotated on the upper and lower sides of the opposite sides of the two vertical plates, which respectively rest against the inner walls of the two conveyor belts.

[0022] As a preferred technical solution of the present invention, a linkage shaft is installed at one end of any limiting shaft of the inner wall of the conveyor belt below the opposite sides of the two vertical plates, close to the driving motor, and the end of the linkage shaft away from the limiting shaft rotates through the stabilizing plate and is connected to the output shaft of the driving motor through a belt drive;

[0023] The outer walls of the two limiting shafts on one side of the two conveyor belts close to the annular frame are sleeved with mutual meshing auxiliary gears.

[0024] As a preferred technical solution of the present invention, the middle parts of the opposite sides of the two conveyor belts are close to each other, and the two conveyor belts are parallel to each other on the side close to the annular frame, and the opposite sides of the two conveyor belts are far away from each other on the side away from the annular frame. The outer wall of the conveyor belt is provided with a flexible pad, and the cross-section of the flexible pad is an arc-shaped concave surface. A plurality of resistance plates are equidistantly arranged on the outer wall of the flexible pad located above the opposite sides of the two vertical plates.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] 1. The present invention can automatically convey, clean and spray the steel wire ropes in sequence, thereby realizing the continuous processing of multiple steel wire ropes, and spraying the coating after removing dust and impurities on the surface of the steel wire rope can enhance the wear resistance and corrosion resistance of the steel wire rope, and it is not easy to fall off. Subsequently, a plastic sleeve is injection-molded on the outer wall of the steel wire rope. The coating can increase the stability of the plastic sleeve, preventing the subsequent lack of stability after the safety belt is installed, resulting in sliding and affecting the safety performance.

[0027] 2. The present invention can position the steel wire rope through the baffle plate so that the designated position of the steel wire rope is located in the injection molding groove. Subsequently, the hydraulic cylinder drives the upper mold to move down through the movable mold seat to close the mold with the lower mold so that the two injection molding grooves surround the steel wire rope. Molten plastic is then injected into the cavity to wrap the outer wall of the steel wire rope and form a plastic sleeve after cooling. In addition, the position of the steel wire rope in the discharge trough in the injection molding groove can be adjusted by adjusting the length of the telescopic plate, thereby adjusting the injection molding position of the plastic sleeve on the outer wall of the steel wire rope, so as to facilitate adaptive adjustment according to actual production needs.

[0028] 3. The present invention can realize automatic and continuous feeding of steel wire ropes. The steel wire ropes can be fully cleaned and sprayed during the feeding process. The conveyor belt can push the steel wire ropes through the resistance sheet while conveying the steel wire ropes through the flexible pad, so that the steel wire ropes can overcome the resistance encountered during cleaning and spraying, avoiding affecting the feeding efficiency, thereby saving processing procedures and saving costs.

[0029] IV. The present invention sprays the cleaning liquid onto the surface of the steel wire rope through a nozzle, and then cooperates with a brush to perform deep cleaning treatment on the surface of the steel wire rope, which can effectively remove the dust and impurities accumulated in the gaps on the surface of the steel wire rope. Subsequently, the water absorption pad contacts the outer wall of the steel wire rope and absorbs the water on its surface, thereby preventing the remaining water from affecting the spraying and injection molding effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the drawings and embodiments.

[0031] Figure 1 is a schematic structural diagram of the present invention.

[0032] Figure 2 is a schematic structural diagram of the injection molding unit of the present invention.

[0033] Figure 3 is the present invention Figure 2 partial enlarged view of part A.

[0034] Figure 4 is a schematic structural diagram of the safety belt steel wire rope after spraying and injection molding of the present invention.

[0035] Figure 5 is a schematic structural diagram of the pretreatment unit of the present invention.

[0036] Figure 6 is the present invention Figure 5 partial enlarged view of part B.

[0037] Figure 7 is a schematic structural diagram between the annular frame, the cleaning component and the spraying component of the present invention.

[0038] Figure 8 is a schematic structural diagram of the spraying component of the present invention.

[0039] Figure 9 is a schematic structural diagram of the feeding unit of the present invention.

[0040] Figure 10 is a schematic structural diagram between the connecting seat, the nozzle and the brush of the present invention.

[0041] Figure 11 is a schematic structural diagram between the annular frame, the push spring rod, the mounting plate, the water absorption pad and the heating sheet of the present invention.

[0042] In the figure, 1 is a workbench; 2 is an injection molding unit; 21 is a support seat; 22 is an injection mold; 221 is a lower mold; 222 is an upper mold; 223 is a material discharge groove; 224 is an injection groove; 225 is a tapered groove; 226 is an L-shaped frame; 227 is a telescopic plate; 228 is a connecting plate; 229 is a baffle; 23 is a fixed mold base; 24 is a hydraulic cylinder; 25 is a moving mold base; 26 is a support rod; 27 is a linkage plate; 28 is an injection molding machine; 29 is an injection pipe; 3 is a pretreatment unit; 31 is an annular frame; 311 is a push spring rod; 312 is a mounting plate; 313 is a water absorption pad; 314 is a heating sheet; 32 is a stabilizing plate; 33 is a supporting bracket; 34 is an annular groove; 35 is an annular bevel gear ring; 36 is a bevel gear; 37 is a driving motor; 38 is a cleaning assembly; 381 is a supply cavity; 382 is a feed check valve; 383 is a discharge port; 384 is a support spring rod; 385 is a connecting seat; 386 is a water storage cavity; 387 is a telescopic cylinder; 388 is a through hole; 389 is a spray head; 380 is a brush; 39 is a spraying assembly; 391 is a storage chamber; 392 is a feed valve; 393 is a discharge port; 394 is a telescopic pipe; 395 is a coating head; 396 is an auxiliary plate; 397 is a top extension spring rod; 398 is a contact wheel; 4 is a feeding unit; 41 is a conveyor belt; 42 is an upright plate; 43 is a limiting shaft; 44 is a linkage shaft; 45 is an auxiliary gear; 46 is a flexible pad; 47 is a contact piece. Detailed implementation mode

[0043] The following will be described in detail with reference to the attached Figures 1 - 11 embodiments of the present invention.

[0044] The embodiment of the present application discloses a spraying and injection molding system for a safety belt steel wire rope. It should be noted that the spraying and injection molding system for the safety belt steel wire rope of the present application is mainly applied to the process of injecting a plastic sleeve on the surface of the steel wire rope. In terms of technical effects, it can automatically convey, clean and spray the steel wire rope in sequence, and then inject a plastic sleeve on the outer wall of the steel wire rope. The coating can increase the stability of the plastic sleeve and prevent the lack of stability and sliding after the subsequent installation of the safety belt, which may affect the safety performance; especially when cleaning and spraying the steel wire rope, it can realize the continuous treatment of multiple steel wire ropes, and the spraying of the coating after removing the dust and impurities on the surface of the steel wire rope can enhance the wear resistance and corrosion resistance of the steel wire rope and is not easy to fall off; further, the spraying and injection molding system for the safety belt steel wire rope can also position the steel wire rope before injection, so that the plastic sleeve is injected at a specified position on the outer wall of the steel wire rope, and can also adjust the injection position of the plastic sleeve on the outer wall of the steel wire rope, so as to adaptively adjust according to actual production requirements. Embodiment 1:

[0045] Refer to Figure 1 and Figure 2As shown in the figure, a spraying and injection molding system for a seat belt steel wire rope includes a workbench 1. An injection molding unit 2, a pretreatment unit 3, and a feeding unit 4 are arranged at the upper end of the workbench 1. The injection molding unit 2 and the feeding unit 4 are symmetrically arranged along the pretreatment unit 3. The pretreatment unit 3 includes an annular frame 31 installed in the middle of the upper end of the workbench 1. The injection molding unit 2 includes a support base 21 installed at the upper end of the workbench 1. The support base 21 is located on the side of the annular frame 31 away from the conveyor belt 41. An injection mold 22 is installed at the upper end of the support base 21. The feeding unit 4 includes two conveyor belts 41 installed at the upper end of the workbench 1. The two conveyor belts 41 are symmetrically distributed along the axis of the annular frame 31.

[0046] In the specific implementation process, the steel wire rope to be processed is placed at the feeding unit 4, and the steel wire rope is conveyed to the pretreatment unit 3 through the feeding unit 4, so that the pretreatment unit 3 cleans and sprays the steel wire rope, in order to remove the dust and impurities on the surface of the steel wire rope, and by spraying a coating on the steel wire rope, the wear resistance and corrosion resistance of the steel wire rope can be enhanced, and it is not easy to fall off. Subsequently, the injection molding unit 2 injects a plastic sleeve for connecting the seat belt on the outer wall of the sprayed steel wire rope. The plastic sleeve can increase the stability of the seat belt and prevent the seat belt from sliding on the steel wire rope and affecting the use effect.

[0047] Continue to refer to Figure 1 and Figure 2 As shown in the figure, in order to facilitate the injection molding of the plastic sleeve on the outer wall of the steel wire rope, the injection molding unit 2 is provided in this embodiment. Specifically, the injection molding unit 2 further includes a fixed mold base 23 arranged in the middle of the upper end of the support base 21. Hydraulic cylinders 24 are installed at the four corners of the upper end of the support base 21. The telescopic ends of the multiple hydraulic cylinders 24 slide through the fixed mold base 23 and are jointly provided with a movable mold base 25. The injection mold 22 is installed between the fixed mold base 23 and the fixed mold base 23; a linkage plate 27 is arranged at the upper end of the movable mold base 25 through multiple support rods 26. An injection molding machine 28 is arranged at the upper end of the linkage plate 27. The output end at the bottom of the injection molding machine 28 is installed with an injection pipe 29 located between the linkage plate 27 and the movable mold base 25.

[0048] Furthermore, in this embodiment, the injection mold 22 is composed of a lower mold 221 installed at the upper end of the fixed mold base 23 and an upper mold 222 installed at the lower end of the movable mold base 25. Feeding grooves 223 that cooperate with each other are opened on the opposite sides of the upper mold 222 and the lower mold 221. An injection groove 224 is opened in the middle of the feeding groove 223. The positions of the injection grooves 224 between the upper mold 222 and the lower mold 221 correspond to each other, and when the upper mold 222 moves down and closes with the lower mold 221, the two injection grooves 224 form a cavity for injecting the plastic sleeve on the outer wall of the steel wire rope. The injection groove 224 of the upper mold 222 is communicated with the injection pipe 29.

[0049] In the initial state, the telescopic end of the hydraulic cylinder 24 is in the extended state. The hydraulic cylinder 24 drives the moving die base 25, the support rod 26, the linkage plate 27 and the injection molding machine 28 to move upward as a whole. At this time, the moving die base 25 drives the upper die 222 to separate from the lower die 221, so that the upper die 222 and the lower die 221 are opened, facilitating the placement of the wire rope to be processed into the cavity.

[0050] Referring to Figure 2 , Figure 3 and Figure 4 As shown, furthermore, in this embodiment, tapered grooves 225 with gradually increasing diameters are provided at both ends of the material placing groove 223 of the lower die 221. An L-shaped frame 226 is provided at one end of the lower die 221 away from the annular frame 31. The horizontal section of the L-shaped frame 226 is a telescopic plate 227 with an adjustable length. The vertical section of the L-shaped frame 226 includes a connecting plate 228 installed at the upper end of the telescopic plate 227. A baffle 229 is rotatably connected to the upper end of the connecting plate 228 through a torsion spring. A support pad is installed between the baffle 229 and the connecting plate 228.

[0051] It should be noted that the torsion spring always exerts a torsional force on the baffle 229 to rotate it towards the side close to the lower die 221, so that the baffle 229 has a tendency to rotate downward when not affected by other external forces. The support pad can provide a limiting effect on the baffle 229 to resist the torsion spring, so that the baffle 229 and the connecting plate 228 are in the same vertical plane, ensuring that the baffle 229 can be reset under the action of the torsion spring after being forced to rotate away from the lower die 221.

[0052] In the specific implementation process, the wire rope is conveyed into the material placing groove 223 of the lower die 221 through the feeding unit 4. The baffle 229 can limit one end of the wire rope away from the feeding unit 4, facilitating the positioning of the wire rope and making the specified position of the wire rope located in the injection groove 224. Subsequently, the hydraulic cylinder 24 is started. The hydraulic cylinder 24 drives the moving die base 25 and the upper die 222 to move downward, so that the upper die 222 and the lower die 221 are closed and the two injection grooves 224 surround the wire rope. Subsequently, the injection molding machine 28 injects molten plastic into the cavity through the injection pipe 29, so that the molten plastic wraps around the outer wall of the wire rope and forms a plastic sleeve after cooling (shown in Figure 4 ), thus completing the injection molding of the plastic sleeve on the outer wall of the wire rope.

[0053] After the injection molding is completed, the hydraulic cylinder 24 is started. The hydraulic cylinder 24 drives the moving mold base 25 and the upper mold 222 to move upward and separate from the lower mold 221. Subsequently, the feeding unit 4 conveys the next steel wire rope to be processed into the feeding groove 223 of the lower mold 221, so that the steel wire rope in the feeding groove 223 ejects the injection-molded steel wire rope in the feeding groove 223. The ejected steel wire rope exerts a thrust on the baffle 229, causing the baffle 229 to rotate adaptively. In this way, the automatic feeding, injection molding, and discharging of the steel wire rope can be realized, effectively improving the working efficiency.

[0054] It should be noted that the telescopic plate 227 is composed of multiple telescopic joints, and a damping is provided between adjacent telescopic joints. The resistance caused by the damping to adjacent telescopic joints is greater than the torsional force exerted by the torsion spring on the baffle 229. That is, when the steel wire rope exerts a thrust on the baffle 229, the baffle 229 rotates, but the length of the telescopic plate 227 will not be affected and change.

[0055] In addition, the length of the telescopic plate 227 can be adjusted adaptively, and after adjustment, it can be limited under the action of the damping. Thus, after the length of the telescopic plate 227 is adjusted, the distance between the baffle 229 and the injection molding groove 224 can be adjusted, and then the position of the steel wire rope in the feeding groove 223 located in the injection molding groove 224 can be adjusted, so as to adjust the injection molding position of the plastic sleeve on the outer wall of the steel wire rope, so as to be adjusted adaptively according to the actual production requirements.

[0056] Refer to Figure 5 and Figure 7 As shown, since a large amount of dust and impurities are likely to remain on the surface of the steel wire rope after production, if not cleaned in time before injection molding, the impurities are likely to affect the stability between the injection-molded plastic sleeve and the steel wire rope, making the plastic sleeve prone to relative rotation or sliding with the steel wire rope, and further affecting the safety during subsequent use; based on this, in this embodiment, corresponding pretreatment can be carried out on the steel wire rope before injection molding. Specifically, the pretreatment unit 3 further includes two stabilizing plates 32 installed at the upper end of the workbench 1. The two stabilizing plates 32 are symmetrically distributed along the width direction of the workbench 1. On the opposite sides of the two stabilizing plates 32, two supporting brackets 33 are symmetrically arranged along the width direction of the annular frame 31. Annular grooves 34 are formed on the outer wall of the annular frame 31 and are rotatably sleeved on the supporting brackets 33. Through the mutual cooperation between the annular frame 31 and the annular grooves 34, the annular frame 31 can be limited to prevent the annular frame 31 from falling, and the annular frame 31 can be rotated arbitrarily.

[0057] Further, in this embodiment, an annular bevel gear ring 35 is fixedly sleeved on the outer wall of the annular frame 31. On one side of any stabilizing plate 32 close to the annular frame 31, a bevel gear 36 is rotatably arranged through a positioning shaft. The bevel gear 36 meshes with the annular bevel gear ring 35. A driving motor 37 connected to the positioning shaft is installed on the stabilizing plate 32 through a motor base. A cleaning assembly 38 for removing impurities on the outer wall of the wire rope and a spraying assembly 39 for spraying a coating on the outer wall of the wire rope are installed on the inner wall of the annular frame 31.

[0058] In the specific implementation process, when the feeding unit 4 conveys the wire rope towards the annular frame 31, the driving motor 37 is started. The driving motor 37 drives the bevel gear 36 to rotate through the positioning shaft. The bevel gear 36 drives the annular frame 31 to rotate synchronously through the annular bevel gear ring 35, so that the annular frame 31 drives the cleaning assembly 38 and the spraying assembly 39 to perform corresponding cleaning and spraying treatments on the wire rope, so as to remove dust and impurities on the surface of the wire rope, and the sprayed coating can enhance the wear resistance and corrosion resistance of the wire rope.

[0059] Refer to Figure 5 and Figure 6 As shown, in order to improve the stability between the wire rope and the plastic sleeve after injection molding, it is necessary to remove dust and impurities on the surface of the wire rope. Based on this, a cleaning assembly 38 is also provided in this embodiment. Specifically, the cleaning assembly 38 includes a supply cavity 381 opened on one side of the inner part of the annular frame 31 close to the feeding unit 4. A feeding one-way valve 382 communicating with the outside is installed at any position on the side wall of the supply cavity 381. A plurality of discharge ports 383 communicating with the supply cavity 381 are opened on the inner wall of the annular frame 31.

[0060] Further, in this embodiment, support spring rods 384 are installed on both sides of each discharge port 383 on the inner side wall of the annular frame 31. A connecting seat 385 for cleaning the outer wall of the wire rope is jointly arranged on the side of the support spring rods 384 on both sides of the discharge port 383 close to the axis of the annular frame 31. A water storage cavity 386 is opened inside the connecting seat 385. A telescopic cylinder 387 is installed between the water storage cavity 386 and the discharge port 383. A plurality of through holes 388 communicating with the water storage cavity 386 are opened on the side of the connecting seat 385 away from the telescopic cylinder 387.

[0061] It should be noted that the support spring rods 384 always exert a driving force on the connecting seat 385 towards the axis side of the annular frame 31, so that the plurality of connecting seats 385 approach each other in the initial state; in addition, an inclined plate is installed on the side of the connecting seat 385 close to the feeding unit 4. One end of the inclined plate away from the connecting seat 385 is inclined towards the side away from the axis of the annular frame 31. The wire rope can be guided through the inclined plate, so that the wire rope can be smoothly inserted between the plurality of connecting seats 385.

[0062] In the specific implementation process, a cleaning liquid for cleaning the wire rope is added into the supply chamber 381 through the feed one-way valve 382. The cleaning liquid enters the water storage chambers 386 of multiple connecting seats 385 through the discharge port 383 and the telescopic cylinder 387. When the wire rope is inserted into the opposite sides of multiple connecting seats 385, the cleaning liquid inside the connecting seats 385 flows out through the through holes 388 to the surface of the wire rope, so that corresponding cleaning treatment can be carried out on it to facilitate the removal of impurities.

[0063] Refer to 7 and Figure 8 As shown in FIGS. 7 and

[0064] It should be noted that the top extension spring rods 397 always apply a driving force to the auxiliary plate 396 in the direction of the axis of the annular frame 31. In the initial state, multiple auxiliary plates 396 drive the paint heads 395 to approach each other.

[0065] In the specific implementation process, after the wire rope is cleaned, the feeding unit 4 drives it to continue to move towards the side close to the discharging groove 223. When the wire rope moves to the opposite sides of multiple paint heads 395, the abutting wheels 398 abut against the outer wall of the wire rope. It should be noted that the distance between the abutting wheels 398 and the axis of the annular frame 31 is less than the distance between the paint heads 395 and the axis of the annular frame 31. Therefore, by abutting the abutting wheels 398 against the outer wall of the wire rope, a certain spraying distance can be ensured between the paint heads 395 and the wire rope. During this period, the coating can be sprayed on the outer wall of the wire rope through the paint heads 395. The stability of injecting the plastic sleeve on the outer wall of the wire rope can be enhanced through the coating, thereby ensuring the subsequent use safety.

[0066] Refer to Figure 9As shown, in order to ensure continuous injection molding of the wire rope, the wire rope needs to be continuously conveyed into the feeding groove 223 between the upper die 222 and the lower die 221. Based on this, a feeding unit 4 is also provided in this embodiment. Specifically, the feeding unit 4 further includes two vertical plates 42 installed at the upper end of the workbench 1. The two vertical plates 42 are symmetrically distributed along the width direction of the workbench 1. Two conveyor belts 41 are symmetrically arranged up and down on the opposite sides of the two vertical plates 42. And a plurality of limiting shafts 43 respectively abutting against the inner side walls of the two conveyor belts 41 are symmetrically rotatably arranged on the upper and lower sides of the opposite sides of the two vertical plates 42.

[0067] Further, in this embodiment, a linkage shaft 44 is installed at one end of any of the limiting shafts 43 on the inner wall of the conveyor belt 41 below the opposite sides of the two vertical plates 42 close to the driving motor 37. The end of the linkage shaft 44 away from the limiting shaft 43 rotatably passes through the stabilizing plate 32 and is connected to the output shaft of the driving motor 37 through belt drive; Auxiliary gears 45 that mesh with each other are fixedly sleeved on the outer walls of the two limiting shafts 43 on the side of the two conveyor belts 41 close to the annular frame 31.

[0068] Furthermore, in this embodiment, the middle parts of the opposite sides of the two conveyor belts 41 approach each other, and the sides of the two conveyor belts 41 close to the annular frame 31 are parallel to each other. The sides of the two conveyor belts 41 away from the annular frame 31 on the opposite sides are away from each other. A flexible pad 46 is sleeved on the outer wall of the conveyor belt 41. The cross section of the flexible pad 46 is an arc-shaped concave surface, and a complete circular cavity is formed by the opposite sides of the upper and lower flexible pads 46; A plurality of abutting pieces 47 are equidistantly arranged on the outer wall of the flexible pad 46 above the opposite sides of the two vertical plates 42.

[0069] In the specific implementation process, when the driving motor 37 drives the rotating shaft clockwise, it drives the linkage shaft 44, the limiting shaft 43 and the lower conveyor belt 41 to rotate clockwise synchronously. The lower conveyor belt 41 drives the upper limiting shaft 43 and the conveyor belt 41 to rotate counterclockwise through the limiting shaft 43 and the auxiliary gear 45, so that the opposite sides of the upper and lower conveyor belts 41 can drive the wire rope toward the side close to the annular frame 31 (shown in Figure 9 ); Subsequently, the wire rope to be processed is placed in the flexible pad 46 between the two conveyor belts 41. The abutting piece 47 of the upper conveyor belt 41 can push the wire rope placed on the upper end of the lower conveyor belt 41, so that it can smoothly pass through the annular frame 31 and enter the feeding groove 223; In this way, automatic continuous feeding of the wire rope can be realized. The wire rope can be fully cleaned and sprayed during the feeding process. And when the conveyor belt 41 conveys the wire rope through the flexible pad 46, it can push and squeeze the wire rope through the abutting piece 47, so that the wire rope can overcome the resistance received during cleaning and spraying, avoiding affecting the feeding efficiency, thus saving processing procedures and cost.

[0070] It should be noted that the drive motor 37 provided in this embodiment is an intermittent motor used to drive the conveyor belt 41 to rotate intermittently through the linkage shaft 44 and the limit shaft 43. After the injection molding is completed, the steel wire rope between the upper mold 222 and the lower mold 221, the drive motor 37 controls the operation of the conveyor belt 41 and conveys one of the steel wire ropes between the two flexible pads 46 into the annular frame 31. Subsequently, the steel wire rope in the annular frame 31 is ejected and placed in the feeding groove 223, so as to realize the automatic feeding of the steel wire rope. And during the injection molding process of the steel wire rope between the upper mold 222 and the lower mold 221, the drive motor 37 controls the conveyor belt 41 to temporarily stop running, so as to avoid interference. Embodiment 2:

[0071] Referring to Figure 10 and Figure 11 As shown, on the basis of Embodiment 1, in order to further improve the cleaning effect of the steel wire rope, in this embodiment, a plurality of nozzles 389 and a plurality of brushes 380 communicating with the through holes 388 are installed on the side of the connecting seat 385 away from the support spring rod 384, and the brushes 380 and the nozzles 389 are arranged alternately.

[0072] Furthermore, in this embodiment, a plurality of annularly distributed push spring rods 311 are evenly installed in the middle of the inner side wall of the annular frame 31. One end of the push spring rod 311 close to the axis of the annular frame 31 is provided with a water absorption pad 313 through a mounting plate 312. An installation groove is opened inside the water absorption pad 313, a heating sheet 314 is arranged in the installation groove, and a plurality of heat dissipation holes are penetrated through the water absorption pad 313.

[0073] In the specific implementation process, the cleaning liquid can be sprayed onto the surface of the steel wire rope through the nozzles 389, avoiding the dripping of the cleaning liquid along the side wall of the through hole 388 and being unable to be fully utilized. At the same time, the annular frame 31 drives the connecting seat 385 and the brushes 380 on its side wall to move synchronously in the circumferential direction, so that the brushes 380 perform deep cleaning on the surface of the steel wire rope, so as to effectively remove the dust and impurities accumulated in the gaps on the surface of the steel wire rope, thereby ensuring the subsequent injection molding effect of the steel wire rope.

[0074] During this period, the annular frame 31 drives the mounting plate 312 and the water absorption pad 313 to move circumferentially as a whole through the push spring rod 311. When the steel wire rope moves toward the side close to the feeding groove 223 after being cleaned, the water absorption pad 313 contacts the outer wall of the steel wire rope and absorbs the water on its surface, so as to prevent the remaining water from affecting the spraying and injection molding effects. Subsequently, the heating sheet 314 is started, and the heating sheet 314 heats the water absorption pad 313 to dry the water inside it to ensure its water absorption performance.

[0075] During operation: Step 1: First, start the drive motor 37. While the drive motor 37 drives the rotating shaft clockwise, it simultaneously drives the linkage shaft 44, the limit shaft 43, and the lower conveyor belt 41 to rotate clockwise synchronously. The lower conveyor belt 41 drives the upper limit shaft 43 and the conveyor belt 41 to rotate counterclockwise through the limit shaft 43 and the auxiliary gear 45, so that the relative sides of the upper and lower conveyor belts 41 can drive the wire rope toward the side close to the annular frame 31.

[0076] Subsequently, place the wire rope to be processed into the flexible pad 46 between the two conveyor belts 41. The push piece 47 of the upper conveyor belt 41 can push the wire rope placed on the upper end of the lower conveyor belt 41, so that it can smoothly pass through the annular frame 31 and enter the feeding trough 223.

[0077] Step 2: When the conveyor belt 41 conveys the wire rope to the inside of the annular frame 31 through the flexible pad 46 and inserts it into the relative sides of the plurality of connecting seats 385, the drive motor 37 drives the bevel gear 36 to rotate through the positioning shaft. The bevel gear 36 drives the annular frame 31 to rotate synchronously through the annular bevel gear ring 35. During this period, the cleaning liquid can be sprayed onto the surface of the wire rope through the nozzle 389. The annular frame 31 drives the connecting seat 385 and the brush 380 on its side wall to perform a circumferential movement synchronously to perform a deep cleaning treatment on the surface of the wire rope, so as to effectively remove the dust and impurities accumulated in the gaps on the surface of the wire rope, thereby ensuring the subsequent injection molding effect of the wire rope.

[0078] At the same time, the annular frame 31 drives the mounting plate 312 and the water absorption pad 313 to perform a circumferential movement as a whole through the pushing spring rod 311. When the wire rope moves toward the side close to the feeding trough 223 after being cleaned, the water absorption pad 313 contacts the outer wall of the wire rope and absorbs the water on its surface, so as to prevent the remaining water from affecting the spraying and injection molding effects. Subsequently, the water absorption pad 313 can be dried by heating the water absorption pad 313 through the heating sheet 314.

[0079] Step 3: After the wire rope is cleaned, the flexible pad 46 drives the wire rope to continue to move toward the side close to the feeding trough 223 through the push piece 47. When the wire rope moves to the relative sides of the plurality of coating heads 395, the contact wheel 398 abuts against the outer wall of the wire rope, so that the coating heads 395 spray a coating on the outer wall of the wire rope. The coating can enhance the stability of injecting the plastic sleeve on the outer wall of the wire rope, thereby ensuring the subsequent use safety. By performing corresponding cleaning and spraying treatments on the wire rope, it is convenient to remove the dust and impurities on the surface of the wire rope, and the sprayed coating can enhance the wear resistance and corrosion resistance of the wire rope.

[0080] Step 4: The flexible pad 46 conveys the wire rope that has been cleaned and sprayed to the feeding groove 223 of the lower mold 221 through the contact piece 47. The wire rope can be positioned by the baffle 229 so that the designated position of the wire rope is located in the injection groove 224. Subsequently, the hydraulic cylinder 24 is activated, and the hydraulic cylinder 24 drives the moving die base 25 and the upper mold 222 to move downward, causing the upper mold 222 and the lower mold 221 to close the mold and the two injection grooves 224 to surround the wire rope.

[0081] Subsequently, the injection molding machine 28 injects molten plastic into the mold cavity through the injection pipe 29, so that the molten plastic wraps around the outer wall of the wire rope and forms a plastic sleeve after cooling, thereby completing the injection molding of the plastic sleeve on the outer wall of the wire rope.

[0082] Step 5: After the injection molding is completed, the hydraulic cylinder 24 drives the moving die base 25 and the upper mold 222 to move upward and open the mold with the lower mold 221. Subsequently, the flexible pad 46 conveys the next wire rope to be processed to the feeding groove 223 of the lower mold 221 through the contact piece 47, so that the wire rope ejects the wire rope that has been injection molded in the feeding groove 223. The ejected wire rope exerts a thrust on the baffle 229, causing the baffle 229 to rotate adaptively. In this way, the automatic feeding, injection molding, and discharging of the wire rope can be realized, and the working efficiency can be effectively improved.

[0083] By repeating the above steps, continuous cleaning, spraying, and injection molding processes can be performed on multiple wire ropes, effectively improving the processing efficiency.

[0084] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0085] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spraying and injection molding system for a safety belt steel wire rope, comprising a workbench (1), an injection molding unit (2), a pretreatment unit (3) and a feeding unit (4) being arranged at the upper end of the workbench (1), the injection molding unit (2) and the feeding unit (4) being arranged symmetrically along the pretreatment unit (3), characterized in that: The pretreatment unit (3) comprises an annular frame (31) mounted at the middle of the upper end of the workbench (1); the injection unit (2) comprises a support seat (21) mounted at the upper end of the workbench (1); the support seat (21) is located on a side of the annular frame (31) away from the conveyor belt (41); an injection mold (22) is mounted on the upper end of the support seat (21); and the feeding unit (4) comprises two conveyor belts (41) mounted at the upper end of the workbench (1); the two conveyor belts (41) are symmetrically distributed along the axis of the annular frame (31); The pretreatment unit (3) further comprises two stabilizing plates (32) mounted on the upper end of the workbench (1), the two stabilizing plates (32) being symmetrically distributed along the width direction of the workbench (1), two supporting frames (33) being symmetrically arranged on opposite sides of the two stabilizing plates (32) along the width direction of the annular frame (31), and the outer wall of the annular frame (31) being provided with two annular grooves (34) rotatably sleeved on the supporting frames (33); The outer wall of the annular frame (31) is fixedly sleeved with an annular bevel gear ring (35); a bevel gear (36) is rotatably arranged on one side of any stabilizing plate (32) close to the annular frame (31) via a positioning shaft; the bevel gear (36) is meshed with the annular bevel gear ring (35); a driving motor (37) connected to the positioning shaft is mounted on the stabilizing plate (32) via a motor seat; a cleaning component (38) for removing impurities from the outer wall of the steel wire rope and a spraying component (39) for spraying a coating on the outer wall of the steel wire rope are mounted on the inner wall of the annular frame (31); The cleaning assembly (38) comprises a replenishing chamber (381) provided inside the annular frame (31) near a side of the feeding unit (4); a feed check valve (382) connected to the outside is installed at any point on the side wall of the replenishing chamber (381); and a plurality of discharge ports (383) connected to the replenishing chamber (381) are provided on the inner wall of the annular frame (31); Support spring rods (384) are installed on both sides of each discharge port (383) on the inner side wall of the annular frame (31); the support spring rods (384) on both sides of the discharge port (383) are provided with a connecting seat (385) for cleaning the outer wall of the wire rope on the side close to the axis of the annular frame (31); a water storage cavity (386) is provided inside the connecting seat (385); a telescopic cylinder (387) is installed between the water storage cavity (386) and the discharge port (383); and a plurality of through holes (388) connected to the water storage cavity (386) are provided on the side of the connecting seat (385) away from the telescopic cylinder (387); A plurality of nozzles 389 and a plurality of brushes 380 connected to the through holes 388 are installed on one side of the connection seat 385 away from the support spring rod 384, and the brushes 380 and the nozzles 389 are arranged alternately; A plurality of annularly distributed pushing spring rods 311 are evenly installed in the middle of the inner side wall of the annular frame 31. A water absorbing pad 313 is arranged at one end of the pushing spring rod 311 close to the axis of the annular frame 31 through a mounting plate 312. A mounting groove is provided inside the water absorbing pad 313. A heating plate 314 is provided in the mounting groove. A plurality of heat dissipation holes are provided through the water absorbing pad 313. The spraying assembly (39) comprises a material storage chamber (391) provided inside the annular frame (31) and away from the feeding unit (4); a feed valve (392) connected to the outside is installed on the side wall of the material storage chamber (391); a plurality of discharge ports (393) connected to the material storage chamber (391) are provided on the inner wall of the annular frame (31); a coating head (395) is installed on the side of the discharge port (393) close to the axis of the annular frame (31) via a telescopic tube (394); An auxiliary plate (396) is installed on the outer wall of the coating head (395); two top extension spring rods (397) are symmetrically arranged between the auxiliary plate (396) and the inner wall of the annular frame (31) along the telescopic tube (394); a resistance wheel (398) is installed on the side of the auxiliary plate (396) close to the axis of the annular frame (31); the resistance wheel (398) is located on the side of the coating head (395) close to the connecting seat (385); The injection molding unit (2) further comprises a fixed mold base (23) arranged at the middle of the upper end of the support base (21); hydraulic cylinders (24) are installed at the four corners of the upper end of the support base (21); the tops of the telescopic ends of the plurality of hydraulic cylinders (24) slide through the fixed mold base (23) and are then jointly provided with a movable mold base (25); the injection mold (22) is installed between the fixed mold base (23) and the fixed mold base (23); A linkage plate (27) is arranged at the upper end of the movable mold base (25) via a plurality of support rods (26), an injection molding machine (28) is arranged at the upper end of the linkage plate (27), and an injection tube (29) located between the linkage plate (27) and the movable mold base (25) is installed at the output end of the bottom of the injection molding machine (28).

2. A spraying and injection molding system for a safety belt steel wire rope according to claim 1, characterized in that: The injection mold (22) is composed of a lower mold (221) mounted on the upper end of a fixed mold base (23) and an upper mold (222) mounted on the lower end of a movable mold base (25). The upper mold (222) and the lower mold (221) are provided with mutually matching discharge grooves (223) on opposite sides thereof. An injection groove (224) is provided in the middle of the discharge groove (223). The injection groove (224) of the upper mold (222) is connected to the injection tube (29).

3. A spraying and injection molding system for a safety belt steel wire rope according to claim 2, characterized in that: Both ends of the discharge trough (223) of the lower mold (221) are provided with tapered grooves (225) with gradually increasing diameters. An L-shaped frame (226) is provided at one end of the lower mold (221) away from the annular frame (31). The horizontal section of the L-shaped frame (226) is a telescopic plate (227) with adjustable length. The vertical section of the L-shaped frame (226) includes a connecting plate (228) installed at the upper end of the telescopic plate (227). The upper end of the connecting plate (228) is rotatably connected to a baffle plate (229) via a torsion spring. A support pad is installed between the baffle plate (229) and the connecting plate (228).

4. The spraying and injection molding system for a safety belt steel wire rope according to claim 1, characterized in that: The feeding unit (4) further comprises two vertical plates (42) mounted on the upper end of the workbench (1), the two vertical plates (42) being symmetrically distributed along the width direction of the workbench (1), two conveyor belts (41) being symmetrically arranged on the upper and lower sides of the opposite sides of the two vertical plates (42), and a plurality of limit shafts (43) respectively resting against the inner side walls of the two conveyor belts (41) being symmetrically arranged on the upper and lower sides of the opposite sides of the two vertical plates (42).

5. A spraying and injection molding system for a safety belt steel wire rope according to claim 4, characterized in that: A linkage shaft (44) is installed at one end of any limiting shaft (43) on the inner wall of the conveyor belt (41) below the two vertical plates (42) and close to the drive motor (37); and an end of the linkage shaft (44) away from the limiting shaft (43) rotates through the stabilizing plate (32) and is connected to the output shaft of the drive motor (37) through a belt drive. The outer walls of the two limiting shafts (43) on the side of the two conveyor belts (41) close to the annular frame (31) are sleeved with mutually meshing auxiliary gears (45).

6. The spraying and injection molding system for a safety belt steel wire rope according to claim 1, characterized in that: The middle parts of the two conveyor belts (41) on opposite sides are close to each other, and the sides of the two conveyor belts (41) close to the annular frame (31) are parallel to each other, and the sides of the two conveyor belts (41) on opposite sides away from the annular frame (31) are away from each other, and the outer wall of the conveyor belt (41) is provided with a flexible pad (46), and the cross section of the flexible pad (46) is an arc-shaped concave surface. The outer wall of the flexible pad (46) located above the opposite sides of the two vertical plates (42) is equidistantly provided with a plurality of abutment sheets (47).

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