A forming device for a communication wire harness protective sleeve

Abstract

The present invention relates to the technical field of wire sleeve processing, and particularly relates to a forming device for a communication wire harness protection sleeve; it includes an equipment frame and a bottom plate installed thereon; an injection molding mechanism and a material taking mechanism are arranged on the bottom plate, the injection molding mechanism includes a mold, a plurality of mandrels distributed left and right, and two U-shaped connecting plates, the mandrel is composed of two sections inserted front and back, and an air passage is arranged inside the rear half section of the mandrel. The present invention realizes the fully automated operation of wire sleeve forming and demolding through the linkage cooperation of the injection molding mechanism and the material taking mechanism, effectively overcomes the defects of low efficiency and strong dependence of manual material taking, and particularly ensures the coherence of the separation of the wire sleeve from the mandrel through the synchronous actions of the lifting part, the clamping block and the arc-shaped plate, significantly improving the batch processing efficiency of the multi-cavity mold. In addition, through the insertion structure of the conical column and the conical groove, and the cooperation and fixation of the limiting column and the limiting hole, the sealing performance of the connection of the mandrel is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of wire sleeve processing, and particularly to a forming device for a communication wire harness protective sleeve. Background Art

[0002] The communication wire harness protective sleeve is composed of a corrugated section in the middle and bent sections at both ends, and the overall is an S-shaped bending structure (as Figure 10 shown). The injection molding of the wire sleeve mainly forms a closed cavity by closing the upper and lower molds, and a combined mandrel is placed in the cavity. Then, molten plastic is injected into the cavity and cooled and solidified. After injection molding, the mold needs to be opened first, and then the fixation of half of the mandrel is released and separated from the wire sleeve. Then, the operator inflates the wire sleeve and simultaneously peels the wire sleeve from the other half of the mandrel.

[0003] However, the following problems exist in the current wire sleeve processing: First, in the scenario of a multi-cavity mold, the operator needs to perform operations such as inflating, peeling, and taking materials on each wire sleeve one by one, resulting in low overall production efficiency. Moreover, the differences in operator experience and the accumulation of fatigue are likely to cause uneven demolding force, resulting in wire sleeve tearing, deformation of the corrugated section, or surface scratches. Second, when assembling the insertion and alignment of multiple mandrels simultaneously, the alignment between the two halves of the mandrel is difficult, and after alignment, it needs to be fixed to the mold by bolts, thus increasing the assembly time. At the same time, due to the differences in the fixing force, there are deviations in the sealing degree at the connection of the mandrels. If a gap is formed, the molten plastic will seep into the gap and form excess protrusions or burrs after cooling, thereby affecting the quality and consistency of the product.

[0004] Therefore, the problems of low production efficiency caused by manual operation and easy product damage due to uneven demolding force, as well as time-consuming insertion and combination alignment of the mandrel and bolt fixing and the influence of sealing differences on product quality and consistency, are the technical problems that need to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the above problems, an embodiment of the present invention provides a forming device for a communication wire harness protective sleeve to solve the above-mentioned technical problems.

[0006] To achieve the above object, the embodiments of the present invention provide the following technical solutions: A forming device for a communication wire harness protective sleeve, comprising a device frame and a bottom plate mounted thereon; an injection molding mechanism and a material taking mechanism are provided on the bottom plate. The injection molding mechanism includes a mold, a plurality of mandrels distributed left and right, and two U-shaped connecting plates. The mandrel is composed of two segments inserted front and back. An air duct is provided inside the rear half of the mandrel. The same ends of the plurality of mandrels are fixedly connected to the corresponding connecting plates. A lifting part is provided on the bottom plate; the material taking mechanism includes a fixing plate located above the mandrel. An installation plate is slidably mounted at the lower end of the fixing plate. A plurality of pairs of sliding plates corresponding to the corrugated segments of the wire sleeve and a plurality of pairs of clamping blocks corresponding to the rear ends of the wire sleeve are provided at the lower end of the installation plate. An arc-shaped plate is mounted on the opposite surfaces of each pair of sliding plates through a compression spring; after the wire sleeve is formed and the mold is opened, the lifting part drives the wire sleeve to move upward between the corresponding arc-shaped plates through the connecting plate and the mandrel, and the front connecting plate is inserted and matched with the installation plate. Then, the arc-shaped plate flexibly clamps the corrugated segment of the wire sleeve and at the same time the clamping block clamps the wire sleeve. Subsequently, the installation plate moves backward to separate the two segments of the mandrel, and gas continuously blows into the wire sleeve through the air duct, so that the wire sleeve is passively separated from the outer wall of the front half of the mandrel. After separation, the clamping block releases the clamping while the arc-shaped plate maintains the clamping, and the lifting part drives the connecting plate to move downward to actively separate the rear half of the mandrel from the wire sleeve.

[0007] As a preferred solution, a slider slidably connected to the lower end of the installation plate is fixedly mounted at the upper end of the clamping block through a guide post. A driving plate is slidably mounted at the lower end of the installation plate. Oblique slots corresponding to the guide posts are provided on the driving plate. The two oblique slots of the same pair form an eight-shaped structure with the small diameter end facing right, and the guide post slidably penetrates through the corresponding oblique slot. A first cylinder with a telescopic section fixedly connected to the left end of the driving plate is fixedly mounted at the lower end of the installation plate.

[0008] As a preferred solution, an arc-shaped plate is slidably mounted on the opposite surfaces of each pair of sliding plates through a slide bar, and the compression spring is sleeved on the slide bar. A spur gear rotatably mounted at the lower end of the installation plate is provided between each pair of sliding plates. A rack is mounted on the opposite surfaces of each pair of sliding plates. The two racks are respectively engaged on the front and rear sides of the spur gear. A linkage plate is fixedly mounted between the left-side sliding plates of each pair of sliding plates. A second cylinder with a telescopic section fixedly connected to the left end of the linkage plate is fixedly mounted at the lower end of the installation plate.

[0009] As a preferred solution, the mold is divided into an upper module and a lower module. The lower module is fixedly mounted at the upper end of the bottom plate. Four support columns distributed in a rectangle are fixedly mounted on the bottom plate. An upper module located directly above the lower module is slidably mounted on the four support columns. The mandrel is located between the upper module and the lower module, and the outer contour of the mandrel is the same as the inner contour of the wire sleeve. Mold cavities corresponding to the mandrels are provided at the lower end of the lower module and the upper end of the upper module.

[0010] As a preferred solution, the lifting part includes a push-pull rod. Two connecting plates are distributed inside and outside with their openings facing each other. The opposite ends of the two longitudinal sections of the rear connecting plate are slidably connected to the opposite ends of the two longitudinal sections of the front connecting plate in the front-back direction. Two push-pull rods are fixedly installed at the lower ends of the two longitudinal sections of the front connecting plate. The lower ends of the push-pull rods slidably penetrate through the bottom plate and are jointly fixedly installed with a push-pull plate. Positioning columns with ball-shaped ends are slidably installed left and right at the opposite ends of the two longitudinal sections of the rear connecting plate. A compression spring is installed between the ball head of the positioning column and the rear connecting plate. Grooves matching the ball heads of the positioning columns are provided on the front connecting plate.

[0011] As a preferred solution, two symmetrically arranged fixing seats that are fixedly installed at the rear end of the top plate are slidably installed on the upper end of the fixing plate in the front-back direction. Support plates that are fixedly installed at the left and right ends of the fixing plate and are slidably connected to the upper end of the bottom plate are provided, and the support plates are located in front of the fixing seats. An inclined connecting rod is hinged between the support plate and the upper module.

[0012] As a preferred solution, a plurality of limiting holes are evenly provided on the transverse section of the rear connecting plate from left to right. Plug rods corresponding to the limiting holes one by one are fixedly installed at the lower end of the mounting plate. The plug rods slidably penetrate through the corresponding limiting holes. Support seats located on the front and rear sides of the lower module are fixedly installed on the upper end of the bottom plate. Limiting columns corresponding to the limiting holes one by one are fixedly installed at the upper end of the rear support seat.

[0013] As a preferred solution, a tapered column is provided at the front end of the rear half section of the mandrel, and the air duct penetrates through the tapered column. A tapered groove that is inserted and matched with the tapered column is provided at the rear end of the front half section of the mandrel. A trachea joint communicated with the air duct one by one is fixedly installed at the rear end of the rear connecting plate.

[0014] As a preferred solution, a third cylinder is fixedly installed at the upper end of the fixing plate. A U-shaped groove is provided at the rear end of the fixing plate. A connecting block is fixedly installed at the telescopic section of the third cylinder. The lower end of the connecting block slidably penetrates through the U-shaped groove and is fixedly connected to the upper end of the mounting plate.

[0015] As a preferred solution, a top plate is jointly fixedly installed at the upper ends of the support columns. A hydraulic cylinder is fixedly installed at the upper end of the top plate. The telescopic section of the hydraulic cylinder slidably penetrates through the top plate and is fixedly connected to the upper end of the upper module.

[0016] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the present invention realizes the fully automated operation of the forming and demoulding of the wire sleeve through the linkage cooperation of the injection mechanism and the material taking mechanism, effectively overcoming the defects of low efficiency and strong dependence of manual material taking. In particular, the synchronous actions of the lifting part, the clamping block and the arc plate ensure the coherence of the separation of the wire sleeve demoulding from the mandrel, significantly improving the batch processing efficiency of the multi-cavity mold. In addition, through the insertion structure of the tapered column and the tapered groove, and the cooperation and fixation of the limiting column and the limiting hole, the sealing performance of the connection part of the mandrel is ensured.

[0017] Second, the present invention uses the cooperation of an arc-shaped plate and a compression spring to achieve elastic adaptive clamping of the corrugated section of the wire sleeve, avoiding tearing, deformation or scratching caused by uneven force during peeling; the clamping block is hermetically sealed with the air duct to ensure that the gas acts stably on the inner wall of the wire sleeve during the inflation process, enabling the wire sleeve to be quickly separated from the front half of the mandrel, significantly shortening the material taking time, and thus improving the overall production efficiency.

[0018] Third, the present invention adopts a mandrel with a front-back plug-in combination structure. When the injection molding mechanism and the material taking mechanism cooperate, the front and rear sections of the mandrel are plugged and combined and relatively fixed, without being fixed to the mold with bolts. At the same time, the connection of the mandrel maintains high efficiency in sealing, thus avoiding the generation of defects such as burrs, protrusions and dimensional deviations.

[0019] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present invention from the first perspective.

[0022] Figure 2 It is a three-dimensional structure schematic diagram of the present invention from the second perspective.

[0023] Figure 3 It is a structure schematic diagram of the injection molding mechanism of the present invention.

[0024] Figure 4 It is a cross-sectional view of the mandrel of the present invention.

[0025] Figure 5 It is a bottom-up structure schematic diagram of the arc-shaped plate and the clamping block of the present invention.

[0026] Figure 6 For Figure 5 The enlarged view of the structure at A in

[0027] Figure 7 It is a structure schematic diagram of the lifting part of the present invention.

[0028] Figure 8 It is a structure schematic diagram of the present invention in the mold clamping state.

[0029] Figure 9This is a top-down cross-sectional view of the positioning post of the present invention.

[0030] Figure 10 This is a cross-sectional view of the formed wire sleeve.

[0031] Reference numerals: 10, equipment rack; 11, bottom plate; 2, injection molding mechanism; 20, mandrel; 200, tapered post; 21, air passage; 210, air pipe joint; 22, connecting plate; 23, upper module; 24, lower module; 25, mold cavity; 26, lifting part; 260, positioning post; 261, compression spring; 262, push-pull rod; 263, push-pull plate; 40, limit hole; 41, supporting seat; 42, limit post; 3, material taking mechanism; 30, fixing plate; 31, mounting plate; 310, inserting rod; 32, fixing seat; 33, supporting plate; 34, connecting rod; 50, sliding plate; 51, arc-shaped plate; 52, spur gear; 53, rack; 54, linkage plate; 55, second cylinder; 60, clamping block; 61, guide post; 62, slider; 63, driving plate; 64, inclined groove; 65, first cylinder; 70, third cylinder; 71, connecting block; 80, top plate; 81, hydraulic cylinder. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] As Figure 1 shown, a forming device for a communication wire harness protective sleeve includes an equipment rack 10 and a bottom plate 11 mounted thereon; an injection molding mechanism 2 and a material taking mechanism 3 are provided on the bottom plate 11.

[0034] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the injection molding mechanism 2 includes a mold, a plurality of mandrels 20 distributed left and right, and two U-shaped connecting plates 22. The mandrel 20 is composed of two sections inserted front and back. An air passage 21 is provided inside the rear half section of the mandrel 20. The same ends of the plurality of mandrels 20 are fixedly connected to the corresponding connecting plates 22. A lifting part 26 for driving the connecting plate 22 to move up and down is provided on the bottom plate 11.

[0035] As Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, the material taking mechanism 3 includes a fixing plate 30 located above the mandrel 20. The lower end of the fixing plate 30 is slidably installed with an installation plate 31 in the front and rear directions. The lower end of the installation plate 31 is provided with multiple pairs of sliding plates 50 corresponding to the corrugated sections of the wire sleeve one by one, and multiple pairs of clamping blocks 60 corresponding to the rear ends of the wire sleeve one by one. The opposite surfaces of each pair of sliding plates 50 are installed with arc-shaped plates 51 through compression springs.

[0036] As Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 10 As shown, the mold is divided into an upper module 23 and a lower module 24. The lower module 24 is fixedly installed at the upper end of the bottom plate 11. Four support columns distributed in a rectangle are fixedly installed on the bottom plate 11. An upper module 23 located directly above the lower module 24 is slidably installed on the four support columns. The mandrel 20 is located between the upper module 23 and the lower module 24, and the outer contour of the mandrel 20 is the same as the inner contour of the wire sleeve. Type grooves 25 corresponding to the mandrel 20 one by one are opened at the lower end of the lower module 24 and the upper end of the upper module 23.

[0037] As Figures 1 to 7 As shown, during specific operation, in the initial state, the upper module 23 and the lower module 24 are in the mold closing state, and the two corresponding type grooves 25 on them form a complete molding cavity. The mandrel 20 is located in the molding cavity and there is a gap between the mandrel 20 and the inner wall of the type groove 25. At this time, plastic melt is injected into the type groove 25. The plastic melt will flow into the gap between the mandrel 20 and the type groove 25 and wrap the outer wall of the mandrel 20. After the plastic melt solidifies, the wire sleeve is formed. The upper module 23 moves upward away from the lower module 24, and the wire sleeve then disengages from the type groove 25 on the upper module 23. At the same time, the material taking mechanism 3 moves to the upper end of the mandrel 20. Then, the lifting part 26 drives the wire sleeve to disengage from the type groove 25 on the lower module 24 through the connecting plate 22 and the mandrel 20, and the mandrel 20 is located between a pair of arc-shaped plates 51 and a pair of clamping blocks 60. After that, the arc-shaped plates 51 flexibly clamp the corrugated section of the wire sleeve, and the clamping blocks 60 clamp the rear end of the wire sleeve, making the wire sleeve closely adhere to and seal the outer wall of the rear half section of the mandrel 20. So when inflating the air passage 21 subsequently, the gas can be blown forward to separate the inner wall of the wire sleeve from the outer wall of the front half section of the mandrel 20.

[0038] After the wire sleeve is clamped, and after the rear connecting plate 22 is inserted into the installation plate 31, the installation plate 31 moves backward and drives the rear half section of the mandrel 20 to move backward through the connecting plate 22. Since the wire sleeve is made of a flexible material and the arc-shaped plates 51 and the clamping blocks 60 clamp the wire sleeve and move synchronously, the rear half section of the mandrel 20 is separated from the front half section. While the rear half section of the mandrel 20 moves backward, air is inflated into the air passage 21, and the gas will be blown into the wire sleeve, separating the inner wall of the wire sleeve from the outer wall of the front half section of the mandrel 20. Continuously inflate and pull the wire sleeve to move backward through the arc-shaped plates 51 and the clamping blocks 60 by the movement of the installation plate 31, so that the wire sleeve disengages from the front half section of the mandrel 20.

[0039] After the wire sleeve completely disengages from the front half of the mandrel 20, the clamping block 60 releases the clamping of the wire sleeve, while the arc-shaped plate 51 maintains the clamping of the wire sleeve. Then, the lifting part 26 drives the connecting plate 22 to move downward, and the connecting plate 22 drives the rear half of the mandrel 20 to move downward and directly disengage from the wire sleeve. After the disengagement is completed, the arc-shaped plate 51 releases the clamping of the wire sleeve. At this time, the wire sleeve drops for centralized collection and processing. Then, the lifting part 26 pushes the connecting plate 22 to move upward, and then drives the front side of the rear-section mandrel 20 to be inserted and matched with the mandrel 20 through the movement of the mounting plate 31. Then, the lifting part 26 drives the connecting plate 22 to move downward and reset. The upper module 23 moves downward again to cooperate with the lower module 24, and the material taking mechanism 3 moves out from between the upper module 23 and the lower module 24 to avoid interfering with the movement of the upper module 23. It should be noted that the length of the wire sleeve is less than the total length of the mandrel 20. Before the wire sleeve disengages from the mandrel 20, the wire sleeve is located in the middle of the mandrel 20, as Figure 4 shown, and the length of the part where the wire sleeve contacts the rear half of the mandrel 20 is much less than the length of the part where the wire sleeve contacts the front half of the mandrel 20. Therefore, an air inflation separation + pulling separation method is adopted between the wire sleeve and the front half of the mandrel 20, and driving the rear half of the mandrel 20 to move downward through the connecting plate 22 can directly and quickly disengage the rear half of the mandrel 20 from the wire sleeve.

[0040] As Figure 1 shown, the upper ends of the support columns are jointly and fixedly installed with a top plate 80. The upper end of the top plate 80 is fixedly installed with a hydraulic cylinder 81. The telescopic section of the hydraulic cylinder 81 slidably penetrates through the top plate 80 and is fixedly connected to the upper end of the upper module 23.

[0041] As Figure 2 and Figure 8 shown, two symmetrically arranged fixing seats 32 fixedly installed at the rear end of the top plate 80 are slidably installed on the upper end of the front and rear of the fixing plate 30. Both the left and right ends of the fixing plate 30 are fixedly installed with support plates 33 slidably connected to the upper end of the bottom plate 11, and the support plates 33 are located in front of the fixing seats 32. An inclined connecting rod 34 is hinged between the support plate 33 and the upper module 23.

[0042] As Figure 3 、 Figure 7 and Figure 9As shown, the lifting part 26 includes a push-pull rod 262. Two connecting plates 22 are distributed inside and outside with their openings facing each other. The opposite ends of the two longitudinal sections of the rear connecting plate 22 are slidably connected to the opposite ends of the two longitudinal sections of the front connecting plate 22 in the front-rear direction. Two push-pull rods 262 are fixedly installed at the lower ends of the two longitudinal sections of the front connecting plate 22. The lower ends of the push-pull rods 262 slidably penetrate through the bottom plate 11 and are jointly fixedly installed with a push-pull plate 263. Positioning columns 260 with ball-shaped ends are slidably installed at the opposite ends of the two longitudinal sections of the rear connecting plate 22 in the left-right direction. A compression spring 261 is installed between the ball head of the positioning column 260 and the rear connecting plate 22. Grooves matching the ball heads of the positioning columns 260 are formed on the front connecting plate 22.

[0043] As Figure 2 , Figure 3 , Figure 5 and Figure 7 shown, a plurality of limiting holes 40 are evenly formed in the transverse section of the rear connecting plate 22 from left to right. A plug rod 310 corresponding to each limiting hole 40 is fixedly installed at the lower end of the mounting plate 31. The plug rod 310 slidably penetrates through the corresponding limiting hole 40. Supporting seats 41 located on the front and rear sides of the lower module 24 are fixedly installed at the upper end of the bottom plate 11. A limiting column 42 corresponding to each limiting hole 40 is fixedly installed at the upper end of the rear supporting seat 41.

[0044] As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9 shown, during specific operation, before the upper module 23 moves upward, there is a certain distance between the front end of the fixing plate 30 and the rear end of the upper module 23. After the wire sleeve is formed, the hydraulic cylinder 81 pulls the upper module 23 upward. As the upper module 23 moves upward, it pulls the support plate 33 forward through the connecting rod 34. The support plate 33 then drives the fixing plate 30, the mounting plate 31, the arc-shaped plate 51, etc. to move forward until the arc-shaped plate 51 moves to the position of the corresponding wire sleeve. Then, an external telescopic cylinder (not shown in the figure) installed at the lower end of the bottom plate 11 pushes the push-pull plate 263 to drive the push-pull rod 262 to move upward through the push-pull plate 263. The push-pull rod 262 then pushes the two connecting plates 22 to move upward. The limiting hole 40 disengages from the limiting column 42. The connecting plate 22 then drives the wire sleeve to move between a pair of corresponding arc-shaped plates 51 and between a pair of corresponding clamping blocks 60 through the mandrel 20. At this time, the plug rod 310 penetrates through the limiting hole 40. Then, the arc-shaped plate 51 and the clamping blocks 60 clamp the wire sleeve, and the wire sleeve is disengaged from the mandrel 20 through the movement of the mounting plate 31.

[0045] In addition, during the process that the lifting part 26 drives the connecting plate 22 to move downward, causing the connecting plate 22 to drive the latter half of the mandrel 20 to move downward and directly disengage from the wire sleeve, the insertion rod 310 is always located within the limit hole 40, which can play a guiding and limiting role. After the latter half of the mandrel 20 disengages from the wire sleeve, the mounting plate 31 drives the rear connecting plate 22 and the latter half of the mandrel 20 to move forward, enabling the latter half of the mandrel 20 to be inserted and combined with the front half of the mandrel 20. When the rear connecting plate 22 moves, the spherical head of the positioning column 260 first abuts against the end of the longitudinal section of the front connecting plate 22. The positioning column 260 moves in the left-right direction under the pushing of the end of the longitudinal section of the front connecting plate 22 and compresses the compression spring 261. As the rear connecting plate 22 continues to move, the spherical head section of the positioning column 260 moves along the side wall of the longitudinal section of the front connecting plate 22 and always abuts against the longitudinal section of the front connecting plate 22 under the resilience of the compression spring 261. When the insertion fit of the mandrel 20 is completed, at this time, under the resilience of the compression spring 261, the spherical head of the positioning column 260 abuts against the groove to pre-limit the rear connecting plate 22. Then, the lifting part 26 drives the connecting plate 22 to move downward, and the lower end of the connecting plate 22 abuts against the upper end of the fixed seat 32, while the limiting column 42 penetrates the limit hole 40 to complete the fixation of the rear connecting plate 22.

[0046] As Figure 4 , Figure 5 and Figure 6 shown, the upper end of the clamping block 60 is fixedly installed with a slider 62 that is slidably connected to the lower end of the mounting plate 31 through a guide post 61. A driving plate 63 is slidably installed at the lower end of the mounting plate 31. Oblique slots 64 corresponding one-to-one to the guide posts 61 are formed on the driving plate 63. Two oblique slots 64 in the same pair form a figure-eight structure with the small-diameter end facing right, and the guide post 61 slidably penetrates the corresponding oblique slot 64. A first air cylinder 65 with a telescopic section fixedly connected to the left end of the driving plate 63 is fixedly installed at the lower end of the mounting plate 31.

[0047] As Figure 4 , Figure 5 and Figure 6 shown, arc-shaped plates 51 are slidably installed on the opposite surfaces of each pair of sliding plates 50 through sliding rods, and compression springs are sleeved on the sliding rods. A spur gear 52 rotatably installed at the lower end of the mounting plate 31 is provided between each pair of sliding plates 50. A rack 53 is installed on the opposite surfaces of each pair of sliding plates 50. The two racks 53 are respectively engaged on the front and rear sides of the spur gear 52. A linkage plate 54 is fixedly installed between the left-side sliding plates 50 in each pair of sliding plates 50. A second air cylinder 55 with a telescopic section fixedly connected to the left end of the linkage plate 54 is fixedly installed at the lower end of the mounting plate 31.

[0048] As Figure 4As shown, a conical column 200 is provided at the front end of the rear half of the mandrel 20, and the air passage 21 penetrates through the conical column 200. A conical groove for inserting and mating with the conical column 200 is provided at the rear end of the front half of the mandrel 20. A tracheal connector 210 corresponding to and communicating with the air passage 21 is fixedly installed at the rear end of the rear side connecting plate 22. The cooperation between the conical column 200 and the conical groove facilitates the docking of the front and rear sections of the mandrel 20. When the rear half of the mandrel 20 moves, a gap can be generated in time between the conical column 200 and the conical groove to facilitate the rapid entry of gas into the wire sleeve, reducing the pulling force on the wire sleeve.

[0049] As Figure 2 and Figure 8 shown, a third cylinder 70 is fixedly installed at the upper end of the fixed plate 30. A U-shaped groove is provided at the rear end of the fixed plate 30. A connecting block 71 is fixedly installed at the telescopic section of the third cylinder 70. The lower end of the connecting block 71 slidably penetrates through the U-shaped groove and is fixedly connected to the upper end of the mounting plate 31.

[0050] As Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 10 shown, during specific operation, the second cylinder 55 pushes the linkage plate 54 to move to the right. The linkage plate 54 drives the corresponding multiple sliding plates 50 to move to the right, and the remaining sliding plates 50 move to the left through the cooperation of the gear and the rack 53, so that each pair of sliding plates 50 move towards each other and push the arc-shaped plate 51 to elastically squeeze the wire sleeve through the compression spring, so that during the process of gas entering the wire sleeve, the arc-shaped plate 51 can adaptively change its position to ensure the separation of the wire sleeve from the mandrel 20; the first cylinder 65 drives the driving plate 63 to move to the left, and the clamping block 60 moves towards the wire sleeve through the cooperation of the guide post 61 and the inclined groove 64. The clamping blocks 60 of the same pair move towards each other to clamp the rear end of the wire sleeve, making the rear end of the wire sleeve closely adhere to and seal the rear half of the mandrel 20. Thus, when inflating the air passage 21 subsequently, the gas can blow forward to separate the inner wall of the wire sleeve from the outer wall of the front half of the mandrel 20.

[0051] After the clamping block 60 clamps the rear end of the wire sleeve, an external inflation device is connected to the tracheal connector 210 and inflates the air passage 21. At the same time, the third cylinder 70 pushes the mounting plate 31 to move backward. The mounting plate 31 drives the rear side connecting plate 22 to move, causing the rear half of the mandrel 20 to move backward. At this time, a gap is generated between the conical column 200 and the conical groove, and gas can enter the wire sleeve to separate the inner wall of the wire sleeve from the outer wall of the front half of the mandrel 20. The third cylinder 70 continues to push the mounting plate 31 to move backward, and the external inflation device continues to inflate the air passage 21. The wire sleeve is pulled off from the front half of the mandrel 20 through the arc-shaped plate 51 and the clamping block 60, and at the same time, the rear half of the mandrel 20 is separated from the front half of the mandrel 20.

[0052] Then, the first cylinder 65 pushes the driving plate 63 to move rightward. Under the cooperation of the guide post 61 and the inclined groove 64, the clamping block 60 is driven to release the clamping of the wire sleeve. Then, the lifting part 26 drives the connecting plate 22 to move downward, and the connecting plate 22 drives the latter half of the mandrel 20 to move downward and directly separate from the wire sleeve. After the separation is completed, the second cylinder 55 pulls the linkage plate 54 to move leftward, so that the arc-shaped plate 51 releases the clamping of the wire sleeve, and the wire sleeve then drops for centralized collection and processing. Then, the connecting plate 22 moves back to its original position, the mandrel 20 is inserted and combined and located in the mold groove 25 on the lower module 24. The upper module 23 moves downward, and at the same time, the material taking mechanism 3 moves backward to avoid interfering with the downward movement of the upper module 23. After that, the above operations are repeated to continue the injection molding process and the automatic material taking after processing.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0054] In addition, the terms "first", "second", "the first", "the second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "the first", "the second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A forming device for a communication wire harness protective sleeve, comprising an equipment rack and a bottom plate mounted thereon; characterized in that: An injection molding mechanism and a material taking mechanism are arranged on the bottom plate; The injection molding mechanism includes a mold, a plurality of mandrels distributed left and right, and two U-shaped connecting plates. The mandrel is composed of two sections inserted front and back. An air passage is arranged inside the rear half section of the mandrel. The same ends of the plurality of mandrels are fixedly connected to the corresponding connecting plates. A lifting part is arranged on the bottom plate; The material taking mechanism includes a fixing plate located above the mandrel. An installation plate is slidably installed at the lower end of the fixing plate. A plurality of pairs of sliding plates corresponding to the corrugated sections of the wire sleeve and a plurality of pairs of clamping blocks corresponding to the rear ends of the wire sleeve are arranged at the lower end of the installation plate. Arc-shaped plates are installed on the opposite surfaces of each pair of sliding plates through compression springs; After the wire sleeve is formed and the mold is opened, the lifting part drives the wire sleeve to move up between the corresponding arc-shaped plates through the connecting plate and the mandrel. The front connecting plate is inserted and matched with the installation plate. Then, the arc-shaped plates flexibly clamp the corrugated section of the wire sleeve and at the same time the clamping blocks clamp the wire sleeve. Subsequently, the installation plate moves backward to separate the two sections of the mandrel, and gas continuously blows into the wire sleeve through the air passage, so that the wire sleeve is passively separated from the outer wall of the front half section of the mandrel. After separation, the clamping blocks release the clamping while the arc-shaped plates remain clamped. The lifting part drives the connecting plate to move down to actively separate the rear half section of the mandrel from the wire sleeve.

2. The forming device for a communication wire harness protective sleeve according to claim 1, characterized in that: The upper end of the clamping block is fixedly installed with a slider slidably connected to the lower end of the installation plate through a guide post. A driving plate is slidably installed at the lower end of the installation plate. Oblique slots corresponding to the guide posts are arranged on the driving plate. The two oblique slots of the same pair form an eight-shaped structure with the small diameter end facing right, and the guide post slidably penetrates the corresponding oblique slot. A first cylinder with a telescopic section fixedly connected to the left end of the driving plate is fixedly installed at the lower end of the installation plate.

3. The forming device for a communication wire harness protective sleeve according to claim 1, characterized in that: Arc-shaped plates are slidably installed on the opposite surfaces of each pair of sliding plates through sliding rods, and the compression springs are sleeved on the sliding rods. A straight gear rotatably installed at the lower end of the installation plate is arranged between each pair of sliding plates. A rack is installed on the opposite surfaces of each pair of sliding plates. The two racks are respectively meshed on the front and rear sides of the straight gear. A linkage plate is fixedly installed between the left-side sliding plates of each pair of sliding plates. A second cylinder with a telescopic section fixedly connected to the left end of the linkage plate is fixedly installed at the lower end of the installation plate.

4. A forming device for a communication wire harness protective sleeve according to claim 1, characterized in that: The mold is divided into an upper module and a lower module. The lower module is fixedly installed at the upper end of the bottom plate. Four support columns distributed in a rectangle are fixedly installed on the bottom plate. An upper module located directly above the lower module is slidably installed on the four support columns. The mandrel is located between the upper module and the lower module, and the outer contour of the mandrel is the same as the inner contour of the wire sleeve. Mold cavities corresponding to the mandrels are arranged at the lower end of the lower module and the upper end of the upper module.

5. The forming device for a communication wire harness protective sleeve according to claim 1, wherein: The lifting part includes a push-pull rod. The two connecting plates are distributed inside and outside with opposite openings. The opposite ends of the two longitudinal sections of the rear connecting plate are slidably connected to the opposite ends of the two longitudinal sections of the front connecting plate front and back. Two push-pull rods are fixedly installed at the lower ends of the two longitudinal sections of the front connecting plate. The lower ends of the push-pull rods slidably penetrate the bottom plate and are jointly fixedly installed with a push-pull plate. Positioning columns with ball-shaped ends are slidably installed on the opposite ends of the two longitudinal sections of the rear connecting plate left and right. A compression spring is installed between the ball head of the positioning column and the rear connecting plate. A groove matched with the ball head of the positioning column is arranged on the front connecting plate.

6. The forming device for a communication wire harness protective sleeve according to claim 4, characterized in that: Two symmetrically arranged fixing seats that are fixedly installed at the rear end of the top plate are slidably mounted in the front and rear directions at the upper end of the fixing plate. Support plates that are fixedly installed at both the left and right ends of the fixing plate and are slidably connected to the upper end of the bottom plate are provided, and the support plates are located on the front side of the fixing seats. An inclined connecting rod is hinged between the support plate and the upper module.

7. A forming device for a communication wire harness protective sleeve according to claim 4, characterized in that: A plurality of limiting holes are evenly formed in the transverse section of the rear connecting plate from left to right. Plug rods that are fixedly installed at the lower end of the mounting plate and correspond to the limiting holes one by one are provided. The plug rods slidably penetrate through the corresponding limiting holes. Support seats that are fixedly installed at the upper end of the bottom plate and are located on the front and rear sides of the lower module are provided. A limiting column that corresponds to the limiting hole one by one is fixedly installed at the upper end of the rear support seat.

8. A forming device for a communication wire harness protective sleeve according to claim 1, characterized in that: A tapered column is provided at the front end of the rear half section of the mandrel, and the air passage penetrates through the tapered column. A tapered groove that is inserted and matched with the tapered column is formed at the rear end of the front half section of the mandrel. A tracheal joint that is in one-to-one correspondence and communication with the air passage is fixedly installed at the rear end of the rear connecting plate.

9. The forming device for a communication wire harness protective sleeve according to claim 1, characterized in that: A third cylinder is fixedly installed at the upper end of the fixing plate. A U-shaped groove is formed at the rear end of the fixing plate. A connecting block is fixedly installed at the telescopic section of the third cylinder. The lower end of the connecting block slidably penetrates through the U-shaped groove and is fixedly connected to the upper end of the mounting plate.

10. A forming device for a communication wire harness protective sleeve according to claim 4, characterized in that: The upper ends of the support columns are fixedly installed with a top plate together. A hydraulic cylinder is fixedly installed at the upper end of the top plate. The telescopic section of the hydraulic cylinder slidably penetrates through the top plate and is fixedly connected to the upper end of the upper module.

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