Spraying injection molding system for steel wire rope of safety belt

Abstract

The invention relates to the technical field of steel wire rope machining, in particular to a safety belt steel wire rope spraying injection molding system which comprises a workbench, an injection molding unit, a pretreatment unit and a feeding unit. The injection molding device can solve the following problems in the injection molding process of the steel wire rope in the prior art: the steel wire rope cannot be correspondingly cleaned, a gap is easily formed between molten plastic and the steel wire rope by dust and impurities, and the adhesive force between the molten plastic and the steel wire rope is influenced; the surface of the steel wire rope is generally a smooth surface, so that friction force between molten plastic and the steel wire rope is easily lacked, the stability between a plastic layer and the steel wire rope is influenced, and the use safety is further influenced; the steel wire rope can be sequentially and automatically conveyed, cleaned and sprayed, after dust and impurities on the surface of the steel wire rope are removed, a coating is sprayed, the abrasion resistance and corrosion resistance of the steel wire rope can be enhanced, the stability of a plastic sleeve obtained after injection molding is ensured, and the use safety performance can be ensured.

Description

Technical Field

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

[0002] Seat belt wire rope is an important component used in personal protective equipment. It is mainly used for safety protection in high-altitude operations, rock climbing, rescue and other occasions. The seat belt wire rope is made of multiple strands of high-strength steel wires. It has high strength and toughness, can withstand large tension and is not easy to break, thus ensuring the safety of the user.

[0003] In order to extend the service life of the seat belt wire rope, spraying and injection molding are usually performed on its outer wall in sequence, so that the seat belt wire rope can be strengthened to enhance its wear resistance and service life, and the friction of the seat belt wire rope can be increased, thereby improving safety.

[0004] However, there are usually some problems when spraying and injection molding steel wire ropes. With the development of science and technology, technicians in related fields have also made a lot of optimizations on the spraying and injection molding methods of steel wire ropes. In order to make a more accurate comparison, a Chinese patent with publication number CN115179524A discloses a steel wire rope surface injection molding production method, wherein the steel wire rope surface injection molding production equipment includes a traction machine, a steel wire rope heating device, a plastic extruder, a water tank and a winder arranged in sequence; the steel wire rope surface injection molding mold includes a mold core, the head of the mold core is connected to a core rod, the tail of the mold core is connected to a rear sealing plugging plate, an inner sleeve is connected between the core rod and the rear sealing plugging plate, and a medium flow channel is provided between the core rod, the inner sleeve and the mold sleeve.

[0005] When the above-mentioned prior art performs injection molding on the steel wire rope, the steel wire rope enters the steel wire rope heating device through a traction machine and reaches the steel wire rope surface injection mold of the plastic extruder. The plastic in the plastic extruder is heated to a molten state and enters the medium flow channel, and then flows to the heated steel wire rope surface for injection molding. The injection-molded steel wire rope is cooled and shaped in a water tank, and the finished injection-molded steel wire rope is wound up by a winder.

[0006] However, there are still some shortcomings in the process of injection molding of steel wire ropes in the above-mentioned prior art: 1. Since dust and other impurities are easily attached to the surface of the steel wire rope during the production process, and the above-mentioned prior art cannot perform corresponding cleaning treatment on the steel wire rope, dust and impurities are likely to form gaps between the molten plastic and the steel wire rope, making it difficult for the molten plastic to adhere firmly to the surface of the steel wire rope, thereby affecting the adhesion between the molten plastic and the steel wire rope, and easily causing the plastic layer to fall off after cooling and shaping.

[0007] 2. Since the surface of the wire rope is usually smooth, it is easy to cause a lack of friction when the molten plastic is injected onto the surface of the wire rope, thereby affecting the stability between the plastic layer and the wire rope after cooling and shaping, and then easily causing slippage or rotation between the plastic layer and the wire rope, affecting safety during later use.

[0008] Therefore, under the above-stated viewpoint, the existing wire rope spraying and injection molding methods still have room for improvement. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a spray injection molding system for a safety belt wire rope, comprising a workbench, an injection molding unit, a pretreatment unit and a feeding unit are arranged at the upper end of the workbench, the injection molding unit and the feeding unit are symmetrically arranged along the pretreatment unit, the pretreatment unit comprises an annular frame installed in the middle of the upper end of the workbench, the injection molding unit comprises 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 on the upper end of the support seat, and the feeding unit comprises 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.

[0010] As a preferred technical solution of the present invention, the injection unit also includes a fixed mold base arranged in the middle of the upper end of the support base, and hydraulic cylinders are installed at the four corners of the upper end of the support base. The tops of the telescopic ends of the multiple hydraulic cylinders slide through the fixed mold base and are jointly provided with a movable mold base, and the injection mold is installed between the fixed mold base and the fixed mold base; A linkage plate is arranged on the upper end of the movable mold seat through a plurality of support rods, an injection molding machine is arranged on the upper end of the linkage plate, and an injection tube located between the linkage plate and the movable mold seat is installed at the output end at the bottom of the injection molding machine.

[0011] As a preferred technical solution of the present invention, the injection mold is composed of a lower mold installed on the upper end of the fixed mold base and an upper mold installed on the lower end of the movable mold base. The upper mold and the lower mold are provided with mutually matching discharge grooves on the opposite sides, and an injection groove is provided in the middle of the discharge groove. The injection groove of the upper mold is connected to the injection tube.

[0012] As a preferred technical solution of the present invention, both ends of the discharge trough of the lower mold are provided with conical grooves with gradually increasing diameters, and an L-shaped frame is provided 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 adjustable length, and the vertical section of the L-shaped frame includes a connecting plate installed on the upper end of the telescopic plate, and the upper end of the connecting plate is rotatably connected to a baffle through a torsion spring, and a support pad is installed between the baffle and the connecting plate.

[0013] 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; 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.

[0014] 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; 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.

[0015] 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; 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.

[0016] 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.

[0017] 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; 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.

[0018] 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.

[0019] In summary, this application includes the following beneficial technical effects: 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.

[0020] 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.

[0021] 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.

[0022] 4. The present invention sprays the cleaning liquid onto the surface of the wire rope through a nozzle, and then uses a brush to perform deep cleaning on the surface of the wire rope, which can effectively remove dust and impurities accumulated in the gaps on the surface of the wire rope. Subsequently, the absorbent pad contacts the outer wall of the wire rope and absorbs the moisture on its surface, thereby preventing residual moisture from affecting the spraying and injection molding effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

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

[0025] Figure 2 It is a structural schematic diagram of the injection molding unit of the present invention.

[0026] Figure 3 The present invention Figure 2 A partial enlarged view of point A.

[0027] Figure 4 It is a structural schematic diagram of a safety belt steel wire rope completed by spraying and injection molding of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the pretreatment unit of the present invention.

[0029] Figure 6 The present invention Figure 5 A partial enlarged view of point B.

[0030] Figure 7 It is a schematic diagram of the structure between the annular frame, the cleaning component and the spraying component of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the spraying assembly of the present invention.

[0032] Fig. 9 It is a structural schematic diagram of the feeding unit of the present invention.

[0033] Fig.10 It is a schematic diagram of the structure between the connection seat, the nozzle and the brush of the present invention.

[0034] Fig.11 It is a schematic diagram of the structure among the annular frame, the pushing spring rod, the mounting plate, the water absorbing pad and the heating plate of the present invention.

[0035] In the figure, 1, workbench; 2, injection unit; 21, support seat; 22, injection mold; 221, lower mold; 222, upper mold; 223, discharge trough; 224, injection trough; 225, conical groove; 226, L-shaped frame; 227, telescopic plate; 228, connecting plate; 229, baffle; 23, fixed mold seat; 24, hydraulic cylinder; 25, movable mold seat; 26, support rod; 27, linkage plate; 28, injection molding machine; 29, injection tube; 3, pretreatment unit; 31, annular frame; 311, pushing spring rod; 312, mounting plate; 313, water absorption pad; 314, heating plate; 32, stabilizing plate; 33, support frame; 34, annular groove; 35, annular bevel gear ring; 36 , bevel gear; 37, drive motor; 38, cleaning component; 381, supply chamber; 382, ​​feed check valve; 383, discharge port; 384, support spring rod; 385, connecting seat; 386, water storage chamber; 387, telescopic cylinder; 388, through hole; 389, nozzle; 380, brush; 39, spraying component; 391, storage chamber; 392, feed valve; 393, discharge port; 394, telescopic tube; 395, coating head; 396, auxiliary plate; 397, extension spring rod; 398, resistance wheel; 4, feeding unit; 41, conveyor belt; 42, vertical plate; 43, limit shaft; 44, linkage shaft; 45, auxiliary gear; 46, flexible pad; 47, resistance sheet. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-Figure 11 Embodiments of the present invention are described in detail.

[0037] 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 used in the process of injecting a plastic sleeve on the surface of the steel wire rope. In terms of technical effect, the steel wire rope can be automatically conveyed, cleaned and sprayed in sequence, and then the plastic sleeve is injected on the outer wall of the steel wire rope. The coating can increase the stability of the plastic sleeve to prevent the subsequent lack of stability after the safety belt is installed and cause sliding to affect the safety performance; in particular, when cleaning and spraying the steel wire rope, multiple steel wire ropes can be continuously processed, and the dust and impurities on the surface of the steel wire rope are removed and the spraying coating can enhance the wear resistance and corrosion resistance of the steel wire rope, and it is not easy to fall off; further, the spraying and injection molding system for the safety belt steel wire rope of the present application can also position the steel wire rope before injection molding, so that the plastic sleeve is injected at a specified position on the outer wall of the steel wire rope, and the injection molding position of the plastic sleeve on the outer wall of the steel wire rope can be adjusted to facilitate adaptive adjustment according to actual production needs. Embodiment 1:

[0038] Reference Figure 1 and Figure 2As shown, a spray injection system for a safety belt steel wire rope comprises a workbench 1, an injection unit 2, a pretreatment unit 3 and a feeding unit 4 are arranged on the upper end of the workbench 1, the injection unit 2 and the feeding unit 4 are symmetrically arranged along the pretreatment unit 3, the pretreatment unit 3 comprises an annular frame 31 installed in the middle of the upper end of the workbench 1, the injection unit 2 comprises a support seat 21 installed on the upper end of the workbench 1, the support seat 21 is located on a side of the annular frame 31 away from a conveyor belt 41, an injection mold 22 is installed on the upper end of the support seat 21, and the feeding unit 4 comprises two conveyor belts 41 installed on the upper end of the workbench 1, and the two conveyor belts 41 are symmetrically distributed along the axis of the annular frame 31.

[0039] During the specific implementation process, the steel wire rope to be processed is placed at the feeding unit 4, and the steel wire rope is transported to the pretreatment unit 3 through the feeding unit 4, so that the pretreatment unit 3 cleans and sprays the steel wire rope to remove dust and impurities on the surface of the steel wire rope. By spraying the 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 plastic sleeve for connecting the safety belt is injection-molded on the outer wall of the sprayed steel wire rope through the injection molding unit 2. The plastic sleeve can increase the stability of the safety belt and prevent the safety belt from sliding on the steel wire rope and affecting the use effect.

[0040] Continue to refer to Figure 1 and Figure 2 As shown, in order to facilitate the injection molding of the plastic sleeve on the outer wall of the wire rope, an injection molding unit 2 is provided in this embodiment. Specifically, the injection molding unit 2 also includes a fixed mold base 23 arranged in the middle of the upper end of the support base 21, and 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 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 provided at the upper end of the movable mold base 25 through a plurality of support rods 26, and an injection molding machine 28 is provided at the upper end of the linkage plate 27. The output end of the bottom of the injection molding machine 28 is installed with an injection tube 29 located between the linkage plate 27 and the movable mold base 25.

[0041] Furthermore, in this embodiment, the injection mold 22 is composed of a lower mold 221 installed on the upper end of the fixed mold base 23 and an upper mold 222 installed on the lower end of the movable mold base 25. The upper mold 222 and the lower mold 221 are provided with mutually matching discharge grooves 223 on the opposite sides, and an injection groove 224 is provided in the middle of the discharge groove 223. The injection grooves 224 between the upper mold 222 and the lower mold 221 are positioned correspondingly, and when the upper mold 222 moves down and is molded with the lower mold 221, the two injection grooves 224 form a cavity for injecting a plastic sleeve on the outer wall of the wire rope, and the injection groove 224 of the upper mold 222 is connected to the injection tube 29.

[0042] In the initial state, the telescopic end of the hydraulic cylinder 24 is in an extended state, and the hydraulic cylinder 24 drives the movable mold 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 movable mold base 25 drives the upper mold 222 and the lower mold 221 to separate, so that the upper mold 222 and the lower mold 221 are opened to facilitate placing the wire rope to be processed in the cavity.

[0043] Reference Figure 2 , Figure 3 and Figure 4 As shown, further, in the present embodiment, both ends of the discharge trough 223 of the lower mold 221 are provided with conical grooves 225 with gradually increasing diameters, and an L-shaped frame 226 is provided at the 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, and 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 229 through a torsion spring, and a support pad is installed between the baffle 229 and the connecting plate 228.

[0044] It should be noted that the torsion spring always applies a torsional force to the baffle 229 to rotate toward the side close to the lower mold 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, thereby ensuring that the baffle 229 can be reset under the action of the torsion spring after being rotated toward the side away from the lower mold 221 under the force.

[0045] In the specific implementation process, the steel wire rope is conveyed to the discharge groove 223 of the lower mold 221 through the feeding unit 4, and the baffle 229 can limit the end of the steel wire rope away from the feeding unit 4, so as to facilitate the positioning of the steel wire rope, so that the designated position of the steel wire rope is located in the injection groove 224; then the hydraulic cylinder 24 is started, and the hydraulic cylinder 24 drives the movable mold base 25 and the upper mold 222 to move downward, so that the upper mold 222 and the lower mold 221 are molded together and the two injection grooves 224 surround the steel wire rope; then the injection molding machine 28 injects molten plastic into the cavity through the injection tube 29, so that the molten plastic is wrapped around the outer wall of the steel wire rope and forms a plastic sleeve after cooling (in Figure 4 ), thereby completing the injection molding of the plastic sleeve on the outer wall of the wire rope.

[0046] After the injection molding is completed, the hydraulic cylinder 24 is started, and the hydraulic cylinder 24 drives the movable mold base 25 and the upper mold 222 to move up and open the mold with the lower mold 221. Then the feeding unit 4 conveys the next steel wire rope to be processed to the discharge trough 223 of the lower mold 221, so that the steel wire rope pushes out the injection-molded steel wire rope in the discharge trough 223. The pushed out steel wire rope applies a thrust to the baffle 229, so that the baffle 229 rotates adaptively, thereby realizing automatic loading, injection molding and unloading of the steel wire rope, which can effectively improve work efficiency.

[0047] It should be noted that the telescopic plate 227 is composed of multiple telescopic joints, and damping is arranged between adjacent telescopic joints. The resistance caused by the damping to the adjacent telescopic joints is greater than the torsional force applied by the torsion spring to the baffle 229, that is, when the wire rope applies thrust to the baffle 229, the baffle 229 rotates, but the length of the telescopic plate 227 will not be affected and change.

[0048] In addition, the length of the telescopic plate 227 can be adaptively adjusted, and after adjustment, it can be limited under the action of damping, so that 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 discharge groove 223 in the injection molding groove 224 can be adjusted, thereby adjusting the injection 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.

[0049] Reference Figure 5 and Figure 7 As shown, after the production of the steel wire rope is completed, a large amount of dust and impurities are likely to remain on its surface. If they are not cleaned in time before injection molding, the impurities are likely to affect the stability between the plastic sleeve and the steel wire rope after injection molding, making it easy for the plastic sleeve to rotate or slide relative to the steel wire rope, thereby affecting the safety during subsequent use. Based on this, in this embodiment, the steel wire rope can be pretreated accordingly before injection molding. Specifically, the pretreatment unit 3 also includes two stabilizing plates 32 installed on the upper end of the workbench 1. The two stabilizing plates 32 are symmetrically distributed along the width direction of the workbench 1. Two supporting brackets 33 are symmetrically arranged on the opposite sides of the two stabilizing plates 32 along the width direction of the annular frame 31. The outer wall of the annular frame 31 is provided with two annular grooves 34 rotatably sleeved on the supporting brackets 33. The annular frame 31 and the annular groove 34 cooperate with each other to limit the position of the annular frame 31 to prevent the annular frame 31 from falling, and the annular frame 31 can be rotated arbitrarily.

[0050] Furthermore, in this embodiment, an annular bevel gear ring 35 is fixedly sleeved on the outer wall of the annular frame 31, and a bevel gear 36 is provided on one side of any stabilizing plate 32 close to the annular frame 31 through a rotation of the positioning shaft, and the bevel gear 36 is meshed 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 seat, and a cleaning component 38 for removing impurities from the outer wall of the wire rope and a spraying component 39 for spraying a coating on the outer wall of the wire rope are installed on the inner wall of the annular frame 31.

[0051] During the specific implementation process, when the steel wire rope of the feeding unit 4 is transported to one side of the annular frame 31, the driving motor 37 is started, and the driving motor 37 drives the bevel gear 36 to rotate through the positioning shaft, and 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 component 38 and the spraying component 39 to perform corresponding cleaning and spraying treatment on the steel wire rope, so as to remove dust and impurities on the surface of the steel wire rope, and the spray coating can enhance the wear resistance and corrosion resistance of the steel wire rope.

[0052] Reference Figure 5 and Figure 6 As shown, in order to improve the stability between the steel wire rope and the injection-molded plastic sleeve, it is necessary to remove dust and impurities on the surface of the steel wire rope. Based on this, a cleaning component 38 is also provided in this embodiment. Specifically, the cleaning component 38 includes a supply chamber 381 opened inside the annular frame 31 close to the side of the feeding unit 4, and a feed one-way valve 382 connected to the outside is installed at any point on the side wall of the supply chamber 381, and a plurality of discharge ports 383 connected to the supply chamber 381 are opened on the inner wall of the annular frame 31.

[0053] Furthermore, in the present embodiment, support spring rods 384 are installed on both sides of each discharge port 383 on the inner wall of the annular frame 31, and the support spring rods 384 on both sides of the discharge port 383 are jointly provided with a connecting seat 385 for cleaning the outer wall of the wire rope near the axis of the annular frame 31, and a water storage chamber 386 is provided inside the connecting seat 385, and a telescopic cylinder 387 is installed between the water storage chamber 386 and the discharge port 383, and a plurality of through holes 388 connected to the water storage chamber 386 are provided on the side of the connecting seat 385 away from the telescopic cylinder 387.

[0054] It should be noted that the support spring rod 384 always applies a driving force to the connecting seat 385 pointing to one side of the axis of the annular frame 31, so that the multiple connecting seats 385 are close to 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, and the end of the inclined plate away from the connecting seat 385 is inclined toward the side away from the axis of the annular frame 31. The wire rope can be guided by the inclined plate so that the wire rope can be smoothly inserted between the multiple connecting seats 385.

[0055] During the specific implementation process, cleaning liquid for cleaning the wire rope is added into the supply chamber 381 through the feed one-way valve 382, ​​and the cleaning liquid enters the water storage chamber 386 of the multiple connecting seats 385 through the discharge port 383 and the telescopic cylinder 387; when the wire rope is inserted to the opposite side of the multiple connecting seats 385, the cleaning liquid inside the connecting seat 385 flows out to the surface of the wire rope through the through hole 388, so that it can be cleaned accordingly to remove impurities.

[0056] Refer to 7 and Figure 8 As shown, in order to further enhance the stability between the plastic sleeve and the steel wire rope, as well as the safety of the use of the steel wire rope, in this embodiment, a coating can also be sprayed on the surface of the steel wire rope. Specifically, the spraying assembly 39 includes a storage chamber 391 opened inside the annular frame 31 on the side away from the feeding unit 4, and a feed valve 392 connected to the outside is installed on the side wall of the storage chamber 391. A plurality of discharge ports 393 connected to the storage chamber 391 are opened on the inner wall of the annular frame 31, and a coating head 395 is installed on the side of the discharge port 393 close to the axis of the annular frame 31 through a telescopic tube 394; an auxiliary plate 396 is installed on the outer wall of the coating head 395, and 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, and a resistance wheel 398 is installed on the side of the auxiliary plate 396 close to the axis of the annular frame 31 through a bracket, and the resistance wheel 398 can rotate on the bracket, and the resistance wheel 398 is located on the side of the coating head 395 close to the connecting seat 385.

[0057] It should be noted that the extension spring rod 397 always applies a driving force to the auxiliary plate 396 toward one side of the axis of the annular frame 31 , and the plurality of auxiliary plates 396 drive the coating heads 395 to move closer to each other in the initial state.

[0058] In the specific implementation process, after the cleaning of the wire rope is completed, the feeding unit 4 drives it to continue to move to the side close to the discharge trough 223. When the wire rope moves to the opposite side of the multiple coating heads 395, the contact wheel 398 abuts against the outer wall of the wire rope. It should be noted that the distance between the contact wheel 398 and the axis of the annular frame 31 is smaller than the distance between the axis of the coating head 395 and the axis of the annular frame 31. Therefore, by abutting the contact wheel 398 against the outer wall of the wire rope, it can be ensured that a certain spraying distance is maintained between the coating head 395 and the wire rope. During this period, the coating head 395 can be used to spray the coating on the outer wall of the wire rope. The coating can enhance the stability of the plastic sleeve injection-molded on the outer wall of the wire rope, thereby ensuring the subsequent safety of use.

[0059] Reference Fig. 9As shown, in order to ensure that the steel wire rope can be continuously injection molded, the steel wire rope needs to be continuously conveyed to the discharge trough 223 between the upper mold 222 and the lower mold 221. Based on this, a feeding unit 4 is also provided in this embodiment. Specifically, the feeding unit 4 also includes two vertical plates 42 installed on the upper end of the workbench 1, and the two vertical plates 42 are symmetrically distributed along the width direction of the workbench 1. Two conveyor belts 41 are 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 that respectively abut against the inner 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.

[0060] Furthermore, in the present embodiment, a linkage shaft 44 is installed at one end of any limiting shaft 43 of 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 rotates through the stabilizing plate 32 and is connected to the output shaft of the driving motor 37 through a belt transmission; the outer walls of the two limiting shafts 43 of the two conveyor belts 41 close to the annular frame 31 are fixedly sleeved with auxiliary gears 45 that mesh with each other.

[0061] Furthermore, in the present embodiment, the middle parts of the opposite sides of the two conveyor belts 41 are close to each other, and the two conveyor belts 41 are parallel to each other on the side close to the annular frame 31, and the opposite sides of the two conveyor belts 41 are far away from each other on the side away from the annular frame 31. The outer wall of the conveyor belt 41 is provided with a flexible pad 46, the cross-section of the flexible pad 46 is an arc-shaped concave surface, and the opposite sides of the upper and lower flexible pads 46 form a complete circular cavity; a plurality of resistance pieces 47 are equidistantly arranged on the outer wall of the flexible pad 46 located above the opposite sides of the two vertical plates 42.

[0062] In the specific implementation process, the driving motor 37 drives the rotating shaft clockwise and 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 opposite sides of the upper and lower conveyor belts 41 can drive the wire rope to the side close to the ring frame 31 (at Fig. 9 ); then the steel wire rope to be processed is placed in the flexible pad 46 between the two conveyor belts 41, and the resistance piece 47 of the upper conveyor belt 41 can push the steel 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 discharge trough 223; in this way, automatic and continuous feeding of the steel wire rope can be achieved, and the steel wire rope can be fully cleaned and sprayed during the feeding process, and the conveyor belt 41 can push the steel wire rope through the resistance piece 47 while conveying the steel wire rope through the flexible pad 46, so that the steel wire rope can overcome the resistance encountered during cleaning and spraying, avoid affecting the feeding efficiency, thereby saving processing steps and saving costs.

[0063] It should be noted that the drive motor 37 provided in this embodiment is an intermittent motor for driving the conveyor belt 41 to rotate intermittently through the linkage shaft 44 and the limit shaft 43, and after the injection molding of the steel wire rope between the upper mold 222 and the lower mold 221 is completed, the drive motor 37 controls the operation of the conveyor belt 41 and conveys a steel wire rope between the two flexible pads 46 to the annular frame 31, and then the steel wire rope in the annular frame 31 is ejected and placed in the discharge trough 223, thereby realizing 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 temporary operation of the conveyor belt 41 to avoid interference. Embodiment 2:

[0064] Reference Fig.10 and Fig.11 As shown, on the basis of embodiment one, in order to further improve the cleaning effect of the wire rope, in this embodiment, a plurality of nozzles 389 connected to the through hole 388 and a plurality of brushes 380 are installed on the side of the connecting seat 385 away from the supporting spring rod 384, and the brushes 380 and the nozzles 389 are arranged in an alternating manner.

[0065] Furthermore, in the present embodiment, a plurality of annularly distributed pushing spring rods 311 are evenly installed in the middle of the inner wall of the annular frame 31, and a water-absorbing pad 313 is provided at one end of the pushing spring rod 311 close to the axis of the annular frame 31 through a mounting plate 312, and a mounting groove is provided inside the water-absorbing pad 313, a heating plate 314 is provided in the mounting groove, and a plurality of heat dissipation holes are provided through the water-absorbing pad 313.

[0066] In the specific implementation process, the cleaning liquid can be sprayed onto the surface of the wire rope through the nozzle 389 to prevent the cleaning liquid from dripping along the side wall of the through hole 388 and not being able to be fully utilized. At the same time, the annular frame 31 drives the connecting seat 385 and the brush 380 of its side wall to move synchronously in a circumferential direction, so that the brush 380 performs 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.

[0067] During this period, the annular frame 31 drives the mounting plate 312 and the water absorbent pad 313 to move circumferentially as a whole by pushing the spring rod 311. When the wire rope is cleaned and moves to the side close to the discharge trough 223, the water absorbent pad 313 contacts the outer wall of the wire rope and absorbs the moisture on its surface, thereby preventing the residual moisture from affecting the spraying and injection molding effects. Then the heating plate 314 is started, and the heating plate 314 heats the water absorbent pad 313 to dry the moisture inside it to ensure its water absorption performance.

[0068] During operation: The first step: first start the drive motor 37. The drive motor 37 drives the rotating shaft clockwise and 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 opposite sides of the upper and lower conveyor belts 41 can drive the wire rope to the side close to the ring frame 31.

[0069] Then, the steel wire rope to be processed is placed in the flexible pad 46 between the two conveyor belts 41. The resistance piece 47 of the upper conveyor belt 41 can push the steel 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 discharge trough 223.

[0070] Step 2: When the conveyor belt 41 conveys the steel wire rope to the inside of the annular frame 31 through the flexible pad 46 and inserts it into the opposite sides of the multiple connecting seats 385, the driving motor 37 drives the bevel gear 36 to rotate through the positioning shaft, and 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 steel wire rope through the nozzle 389, and the annular frame 31 drives the connecting seat 385 and the brush 380 on its side wall to move synchronously in a circumferential direction to 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.

[0071] At the same time, the annular frame 31 drives the mounting plate 312 and the water absorbent pad 313 to move circumferentially as a whole by pushing the spring rod 311. When the wire rope is cleaned and moves to the side close to the discharge trough 223, the water absorbent pad 313 contacts the outer wall of the wire rope and absorbs the moisture on its surface, thereby preventing the residual moisture from affecting the spraying and injection molding effects. Subsequently, the water absorbent pad 313 is heated by the heating plate 314 to dry the moisture inside it.

[0072] Step 3: After the cleaning of the wire rope is completed, the flexible pad 46 drives the wire rope to continue to move toward the side close to the discharge trough 223 through the resistance sheet 47. When the wire rope moves to the opposite side of the multiple coating heads 395, the resistance wheel 398 abuts against the outer wall of the wire rope, so that the coating head 395 sprays the coating on the outer wall of the wire rope. The coating can enhance the stability of the plastic sleeve injection-molded on the outer wall of the wire rope, thereby ensuring the subsequent safety of use. By performing corresponding cleaning and spraying treatments on the wire rope, it is easy to remove dust and impurities on the surface of the wire rope, and the spray coating can enhance the wear resistance and corrosion resistance of the wire rope.

[0073] Step 4: The flexible pad 46 conveys the cleaned and sprayed steel wire rope to the discharge trough 223 of the lower mold 221 through the resistance sheet 47, and the steel wire rope can be positioned through the baffle 229 so that the designated position of the steel wire rope is located in the injection groove 224; then the hydraulic cylinder 24 is started, and the hydraulic cylinder 24 drives the movable mold base 25 and the upper mold 222 to move downward, so that the upper mold 222 and the lower mold 221 are molded together and the two injection grooves 224 surround the steel wire rope.

[0074] Then the injection molding machine 28 injects molten plastic into the mold cavity through the injection tube 29, so that the molten plastic wraps around the outer wall of the steel wire rope and forms a plastic sleeve after cooling, thereby completing the injection molding of the plastic sleeve of the outer wall of the steel wire rope.

[0075] Step 5: After the injection molding is completed, the hydraulic cylinder 24 drives the movable mold base 25 and the upper mold 222 to move up and open the mold with the lower mold 221. Then the flexible pad 46 conveys the next steel wire rope to be processed to the discharge groove 223 of the lower mold 221 through the contact piece 47, so that the steel wire rope pushes out the injection-molded steel wire rope in the discharge groove 223. The pushed out steel wire rope applies a thrust to the baffle 229, so that the baffle 229 rotates adaptively, thereby realizing automatic loading, injection molding and unloading of the steel wire rope, which can effectively improve work efficiency.

[0076] By repeating the above steps, multiple steel wire ropes can be continuously cleaned, sprayed and injection molded, which can effectively improve the processing efficiency.

[0077] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0078] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes 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).

2. A spraying and injection molding system for a safety belt steel wire rope according to claim 1, characterized in that: 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).

3. A spraying and injection molding system for a safety belt steel wire rope according to claim 2, 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).

4. A spraying and injection molding system for a safety belt steel wire rope according to claim 3, 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).

5. The spraying and injection molding system for a safety belt steel wire rope according to claim 1, characterized in that: 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), and 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, and 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, and 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).

6. A spraying and injection molding system for a safety belt steel wire rope according to claim 5, characterized in that: 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 one 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 one side of the connecting seat (385) away from the telescopic cylinder (387).

7. A spraying and injection molding system for a safety belt steel wire rope according to claim 6, characterized in that: 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), and 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), and the resistance wheel (398) is located on the side of the coating head (395) close to the connecting seat (385).

8. 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).

9. A spraying and injection molding system for a safety belt steel wire rope according to claim 8, 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).

10. 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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