Multi-gear blanking structure for feeding cable sheath material

Abstract

The invention relates to the technical field of cable production, in particular to a cable sheath material feeding multi-gear blanking structure which comprises a material tank, a partition plate is fixedly connected to an inner cavity of the material tank, and a multi-gear blanking part used for adjusting the blanking amount in a multi-gear mode when the material tank conducts blanking outwards is installed on the partition plate. A material control mechanism used for adaptive matching when different discharging amounts are adjusted according to the multi-gear discharging part is arranged between the material tank and the mounting cylinder, and a material shifting mechanism used for increasing the discharging speed of the cable sheath material is arranged between the material tank and the multi-gear discharging part. Compared with the prior art, in the discharging process, the sheath material is stirred and stirred, mechanical damage to the sheath material is avoided, meanwhile, the discharging speed can be adjusted more finely according to the cable production requirement, active stirring and multi-point discharging can be conducted on the sheath material, the sheath material can be discharged in a milder and more uniform mode, and discharging is stably and accurately achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, in particular to a multi-stage feeding structure for feeding cable sheath materials. Background Art

[0002] Cable sheathing material is a special polymer material used for the outermost sheath of wires and cables. It mainly plays the role of insulation, corrosion resistance, flame retardancy, waterproofing and mechanical protection. Its raw material types are diverse, and the most common ones include polyvinyl chloride, low smoke halogen-free, polyethylene, thermoplastic elastomer, etc., usually in the form of elliptical, cylindrical or short cylindrical particles. In the cable processing process, the feeding and unloading of the sheathing material are key links in the front end. Usually, after the raw materials are put into the feeding bin, they are transported to the extrusion equipment or mixing system in a quantitative and constant speed with the help of the unloading structure. The unloading efficiency and stability are directly related to the continuity of the subsequent extrusion process and the performance consistency of the sheathing product. In order to improve the adjustment accuracy and adaptability of the unloading process, different unloading rates need to be adjusted according to production needs during actual unloading to meet the process control requirements of various cables.

[0003] Existing feeding equipment typically adjusts the feeding rate by controlling the speed of a spiral paddle or a spiral feeder when performing small-flow fine batching. However, this structure has several drawbacks. First, when the spiral speed is adjusted to a low setting, the propulsion force of the material in the spiral groove is weakened, which can easily lead to partial material retention or discontinuous leakage, resulting in intermittent material flow and low control accuracy, making it impossible to achieve stable and accurate small-flow feeding. Second, the spiral paddle continuously shears, squeezes, and grinds the material during rotation. This is particularly true when processing heat-sensitive or relatively fragile cable sheathing materials such as TPU, LSZH, and recycled PVC. This can easily cause problems such as particle breakage, deformation, pulverization, and even electrostatic adhesion. Summary of the Invention

[0004] The present invention provides a multi-speed feeding structure for cable sheath material feeding, which solves the technical problem that the current cable sheath material feeding equipment is prone to cause the material in the silo to concentrate and flow to the outlet when finely distributing materials with a small flow rate due to limited valve opening, reduced material flow rate and inaccurate multi-speed adjustment, causing blockage, resulting in poor feeding and interruption of feeding, and seriously affecting the continuity and stability of feeding.

[0005] The present invention provides a multi-speed feeding structure for feeding cable sheath materials, comprising a material tank, wherein the inner cavity of the material tank is fixedly connected to a partition, the lower end surface of the partition is fixedly connected to a mounting cylinder, a multi-speed feeding portion for adjusting the feeding amount in multiple gears when the material tank is fed is mounted on the partition, the multi-speed feeding portion comprises a plurality of feeding pipes which are circumferentially equidistantly connected to the lower part of the partition and communicate with the upper inner cavity of the material tank, the lower end surfaces of the two short wall plates in the feeding pipe are both provided with a slide groove, and a slide plate is slidably connected in the slide groove, A material control plate is symmetrically and slidingly connected between the two long wall plates in the discharge pipe, and a follower baffle is hinged between the material control plate and the corresponding slide plate. An adjustment unit is provided on the mounting cylinder for adjusting the distance between the two corresponding material control plates so as to adjust the discharge amount of the discharge pipe. A material control mechanism is provided between the material tank and the mounting cylinder for adaptively cooperating according to different discharge amounts of the multi-speed discharge part. A material diverting mechanism is provided between the material tank and the multi-speed discharge part for accelerating the discharge speed of the cable sheath material.

[0006] In one possible implementation, the adjustment unit includes a screw, a screw sleeve threadedly connected to the outside of the screw, a number of sliding rods equidistantly circumferentially penetrating and slidably connected to the mounting cylinder and corresponding to the discharge pipe, and a number of sliding frame groups equidistantly circumferentially fixedly connected to the outer wall of the screw sleeve and corresponding to the sliding rods. A fixed plate is fixedly connected to the lower part of the inner cavity of the mounting cylinder, and the screw is rotatably connected to the end face of the fixed plate. A sliding column is fixedly connected to the outer wall of the sliding rod and is slidably connected to the sliding frame group. A connecting rod is hinged to the side of the material control plate close to the mounting cylinder, and the corresponding two connecting rods are hinged to the end of the sliding rod close to one end of the mounting cylinder.

[0007] In one possible implementation, the material control mechanism includes a rotating unit, a material separation screen plate and an arc-shaped baffle. The material separation screen plate is fixedly connected to the inner cavity of the material tank and located directly above the baffle. Two arc-shaped through grooves 2 that are rotationally symmetrically distributed are provided on the baffle. The rotating unit is installed on the mounting cylinder. Two pillars that respectively pass through the arc-shaped through grooves 2 are installed on the rotating unit. The upper ends of the two pillars are fixedly connected to a supporting ring. The upper end surface of the supporting ring is fixedly connected to a number of arc-shaped baffles that fit on the lower end surface of the material separation screen plate at equal intervals in the circumferential direction.

[0008] In one possible implementation, the material shifting mechanism includes a plurality of sliding rods equidistantly circumferentially and slidably connected to the mounting cylinder and a rotating shaft rotatably connected to the partition. A return spring is fixedly connected between the sliding rod and the discharge tube. The end of the sliding rod located in the inner cavity of the discharge tube is fixedly connected to a material shifting fork, and the lower end of the rotating shaft is fixedly connected to a cam for cooperating with the sliding rod.

[0009] In one possible implementation, the upper part of the inner cavity of the material tank is fixedly connected to the drive motor through a connecting rod, the upper end of the rotating shaft passes through the material separation screen plate and is fixedly connected to the output shaft of the drive motor, and a number of support rods are fixedly connected to the outer wall of the rotating shaft and located directly above the material separation screen plate at equal distances in the circumference, and the lower end face of each support rod is fixedly connected to a number of shift rods at equal distances radially along the rotating shaft.

[0010] In one possible implementation, the rotating unit includes a rotating shaft, a sleeve and a push rod. The inner wall of the mounting cylinder is fixedly connected to a connecting plate, the lower end face of the connecting plate is rotatably connected to the rotating shaft, the outside of the rotating shaft is rotatably connected to the sleeve, and two arc-shaped through grooves 1 that are rotationally symmetrically distributed are provided on the mounting cylinder. Two push rods that respectively pass through the arc-shaped through grooves 1 are symmetrically fixedly connected to the outside of the sleeve, and the support is fixedly connected to the upper end face of the push rod.

[0011] In a possible implementation, a rotating rod is connected between the mounting cylinder and the material tank for common rotation, and the rotating rod, the screw and the rotating shaft are connected to each other through a bevel gear set.

[0012] In a possible implementation, the upper end side of the partition is a conical surface, the upper end surface of the partition is fixedly connected to a material guide ring seat, and the upper end side of the material guide ring seat is inclined from top to bottom toward the upper port of the discharge pipe.

[0013] In a possible implementation, a retaining ring is fixedly connected to the outside of the two pillars and is attached to the upper surface of the partition plate for blocking the second arc-shaped through groove.

[0014] In a possible implementation, a guide groove is symmetrically provided on one side of the material control plate close to the inner cavity of the discharge pipe, and a guide bar symmetrically fixedly connected to the inner cavity wall of the discharge pipe in a sliding connection with the guide groove is fixedly connected.

[0015] It can be seen from the above technical solutions that the present invention has the following advantages:

[0016] In the present invention, the multi-speed unloading part cooperates with the material-diverting mechanism to stir and divert the sheath material during the unloading process. Compared with the traditional spiral unloading method, the material conveying process does not rely on spiral extrusion and advancement, thereby avoiding mechanical damage to the sheath material. At the same time, not only can the unloading rate be adjusted more finely according to the cable production requirements, but a single material flow can also be split into multiple small flow rates through the simultaneous diversion of multiple unloading pipes to reduce the pressure of a single port. The sheath material can also be actively diverted and discharged at multiple points, so that the sheath material can be discharged in a more gentle and uniform manner, and the unloading can be achieved stably and accurately.

[0017] In the present invention, through the coordinated cooperation of the material separation screen plate and the arc-shaped baffle in the material control mechanism, when the multi-speed discharge part adjusts to different gears, the number of open sieve holes on the material separation screen plate is changed synchronously, so that each discharge rate has a matching sieve hole flow rate, realizing double material control, improving the accuracy of discharge adjustment, controlling the pre-distribution state of the material from the source, and thus avoiding slow discharge caused by a large amount of material accumulating at the discharge port in an instant, ensuring that the sheath material can be smoothly discharged when the discharge rate is adjusted to each gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the multi-stage feeding structure for feeding cable sheath material provided by the present invention.

[0020] Figure 2 This is a schematic cross-sectional structural diagram of the material tank provided by the present invention.

[0021] Figure 3 This is a schematic diagram of the installation structure of the installation tube provided by the present invention when viewed from above.

[0022] Figure 4 This is a schematic diagram of the installation structure of the multi-stage blanking part provided by the present invention.

[0023] Figure 5 The present invention provides Figure 4 Schematic diagram of the enlarged structure of part A in .

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the feed pipe provided by the present invention.

[0025] Figure 7 This is a partial structural diagram of the material control mechanism provided by the present invention.

[0026] Figure 8 This is a schematic cross-sectional structural diagram of the material control mechanism provided by the present invention.

[0027] Figure 9 This is a schematic structural diagram of the partition and discharge pipe provided by the present invention.

[0028] The above drawings include the following reference numerals:

[0029] 1. Material tank; 2. Partition plate; 3. Mounting cylinder; 4. Multi-stage unloading unit; 41. Unloading pipe; 42. Chute; 43. Slide plate; 44. Material control plate; 45. Follow-up baffle; 46. Adjustment unit; 461. Screw; 462. Screw sleeve; 463. Slide rod; 464. Slide frame assembly; 465. Slide column; 466. Connecting rod; 5. Material control mechanism; 51. Material separation screen plate; 52. Rotation unit; 521. Rotating shaft; 522, bushing; 523, push rod; 53, pillar; 54, load-bearing ring; 55, arc-shaped baffle; 6, material-moving mechanism; 61, sliding rod; 62, rotating shaft; 63, material-moving fork; 64, cam; 65, driving motor; 66, shifting rod; 7, arc-shaped through groove 2; 8, arc-shaped through groove 1; 9, rotating rod; 10, bevel gear set; 11, guide ring seat; 12, retaining ring; 13, guide strip. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] See also Figure 1 and Figure 2 The present invention provides a technical solution: a multi-speed feeding structure for feeding cable sheath materials, comprising a material tank 1, a partition 2 is fixedly connected to the inner cavity of the material tank 1, a mounting cylinder 3 is fixedly connected to the lower end surface of the partition 2, a multi-speed feeding portion 4 is installed on the partition 2 for adjusting the feeding amount in multiple gears when the material tank 1 is feeding, a material control mechanism 5 for adaptively cooperating according to different feeding amounts when the multi-speed feeding portion 4 is adjusted is provided between the material tank 1 and the mounting cylinder 3, and a material digging mechanism 6 for accelerating the feeding speed of the cable sheath material is provided between the material tank 1 and the multi-speed feeding portion 4.

[0032] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 6In this embodiment, the multi-speed discharge part 4 includes a plurality of discharge pipes 41 that are circumferentially equidistantly connected to the lower part of the partition 2 and communicate with the upper inner cavity of the material tank 1. The lower end surfaces of the two short wall panels in the discharge pipe 41 are provided with a slide groove 42, and the slide groove 42 is slidably connected with a slide plate 43. A control plate 44 is symmetrically slidably connected between the two long wall panels in the discharge pipe 41, and a follower baffle 45 is hinged between the control plate 44 and the corresponding slide plate 43. An adjustment unit 46 for adjusting the distance between the corresponding two control plates 44 so as to adjust the discharge amount of the discharge pipe 41 is provided on the mounting cylinder 3. A guide groove is symmetrically opened on the upper and lower sides of the control plate 44 close to the inner cavity of the discharge pipe 41. The inner cavity wall of the discharge pipe 41 is symmetrically fixed with a guide bar 13 that is slidably connected to the guide groove. The combination of the guide bar 13 and the guide groove is used to limit the moving path of the control plate 44.

[0033] See also Figure 3 、 Figure 4 and Figure 5 The adjustment unit 46 includes a screw 461, a screw sleeve 462 threadedly connected to the outside of the screw 461, a number of sliding rods 463 equidistantly circumferentially penetrating and slidingly connected to the mounting cylinder 3 and corresponding to the discharge pipe 41, and a number of sliding frame groups 464 equidistantly fixedly connected to the outer wall of the screw sleeve 462 and corresponding to the sliding rod 463. A fixed plate is fixedly connected to the lower part of the inner cavity of the mounting cylinder 3, the screw 461 is rotatably connected to the end face of the fixed plate, and a sliding column 465 slidingly connected to the sliding frame group 464 is fixedly connected to the outer wall of the sliding rod 463. A connecting rod 466 is hinged on the side of the material control plate 44 close to the mounting cylinder 3, and the corresponding two connecting rods 466 are hinged to the end of the sliding rod 463 close to one end of the mounting cylinder 3.

[0034] See also Figure 2 and Figure 8 The upper end side of the partition 2 is a conical surface, and the upper end surface of the partition 2 is fixedly connected to the guide ring seat 11. The upper end side of the guide ring seat 11 is inclined from top to bottom toward the upper end of the discharge pipe 41.

[0035] See also Figure 5 and Figure 7 The material control mechanism 5 includes a rotating unit 52, and the rotating unit 52 includes a rotating shaft 521. A rotating rod 9 is connected between the mounting cylinder 3 and the material tank 1 for common rotation. The rotating rod 9, the screw 461 and the rotating shaft 521 are connected to each other at one end close to each other through a bevel gear set 10.

[0036] Pour all the sheathing material into the material tank 1, and then drive the rotating rod 9 to rotate manually or by an external driving device according to the material discharge rate requirement. The rotating rod 9 then drives the screw 461 to rotate through the bevel gear set 10, and the screw 461 then drives the screw sleeve 462 to move longitudinally. The screw sleeve 462 then drives the slide frame group 464 to move. The slide frame group 464 then squeezes the slide column 465 and pulls the slide rod 463 to move. (When the slide frame group 464 moves upward, it indirectly drives the slide rod 463 to move away from the screw 461 by pressing the slide column 465. When the slide frame group 464 moves downward, it indirectly drives the slide rod 463 to move toward the screw 461 by pulling the slide column 465. ), the slide bar 463 then drives the two connecting rods 466 hinged at its ends to move, and the connecting rod 466 then drives the control plate 44 to slide in the discharge pipe 41, and the corresponding two control plates 44 move toward each other and at the same time drive the slide plate 43 to move in the slide groove 42 through the follower baffle 45, and the discharge rate of the sheathing material from the discharge pipe 41 can be adjusted by adjusting the spacing between the corresponding two control plates 44. The sheathing material can be discharged from multiple positions by utilizing multiple circumferentially distributed discharge pipes 41, avoiding the situation of blockage caused by slow discharge speed, and the sheathing material falling from the discharge pipe 41 enters the bottom of the conical cavity at the lower part of the material tank 1, and is gathered together and discharged from the lower port of the material tank 1.

[0037] See Figure 8 The sheathing material poured into the material tank 1 passes through the material control mechanism 5 and falls on the partition 2. Then, under the joint action of the conical surface on the upper part of the partition 2 and the inclined surface on the upper part of the guide ring seat 11, it approaches the upper port of the discharge pipe 41, ensuring that the sheathing material can smoothly enter the discharge pipe 41.

[0038] See also Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 In this embodiment, the material control mechanism 5 also includes a material separation screen plate 51 and an arc-shaped baffle 55. The material separation screen plate 51 is fixedly connected to the inner cavity of the material tank 1 and is located directly above the partition 2. Two arc-shaped through grooves 27 with rotational symmetry are provided on the partition 2. A rotating unit 52 is installed on the mounting cylinder 3. Two pillars 53 are installed on the rotating unit 52, which respectively penetrate the arc-shaped through grooves 27. The upper ends of the two pillars 53 are commonly fixedly connected to a load-bearing ring 54. The upper end surface of the load-bearing ring 54 is fixedly connected to a number of arc-shaped baffles 55 that are equidistantly attached to the lower end surface of the material separation screen plate 51. The outside of the two pillars 53 is commonly fixedly connected to a retaining ring 12 that is attached to the upper surface of the partition 2 for blocking the arc-shaped through groove 27. The retaining ring 12 is always used to block the upper part of the arc-shaped through groove 27 to prevent the sheath material falling from above from entering the arc-shaped through groove 27.

[0039] See also Figure 4 、 Figure 5 、 Figure 7 and Figure 8 The rotating unit 52 also includes a sleeve 522 and a push rod 523. The inner wall of the mounting cylinder 3 is fixedly connected to a connecting plate. The lower end surface of the connecting plate is rotatably connected to the rotating shaft 521. The outside of the rotating shaft 521 is rotatably connected to the sleeve 522. The sleeve 522 and the rotating shaft 521 are connected in an interference fit manner. There is a certain friction between the two. The mounting cylinder 3 is provided with two arc-shaped through grooves 8 that are rotationally symmetrically distributed. The outside of the sleeve 522 is symmetrically fixedly connected to two push rods 523 that respectively penetrate the arc-shaped through grooves 8. The pillar 53 is fixedly connected to the upper end surface of the push rod 523.

[0040] When the port at the lower part of the discharge pipe 41 is in the maximum opening state, the sieve holes on the material separation screen plate 51 are in a fully open state. When the rotating rod 9 is rotated to indirectly reduce the discharge rate of the discharge pipe 41, the rotating rod 9 will also drive the rotating shaft 521 to rotate through the bevel gear set 10. Since the connection between the rotating shaft 521 and the shaft sleeve 522 is an interference fit, the rotating shaft 521 will drive the shaft sleeve 522 to rotate synchronously under the action of friction. The shaft sleeve 522 then drives the push rod 523 to slide in the arc groove 8, and the push rod 523 then drives the support 53 to rotate in the arc groove 8. The support 53 then drives the arc baffle 55 to rotate through the supporting ring 54. As the two corresponding material control plates 44 move closer to each other, the arc baffle 55 blocks part of the sieve holes of the material separation screen plate 51. The smaller the distance between the two corresponding material control screen plates moving closer to each other, the more sieve holes are blocked by the arc baffle 55, thereby simultaneously reducing the amount of sheathing material passing through the material separation screen plate 51. The material separation screen plate 51 is used to avoid the instantaneous influx of a large amount of sheathing material into the discharge pipe 41, thereby indirectly avoiding the blockage of the discharge pipe 41 when discharging material.

[0041] When the push rod 523 slides in the arc-shaped through groove 8 and hits the side wall of the arc-shaped through groove 8, it stops rotating, thereby indirectly limiting the shaft sleeve 522. At this time, the arc-shaped baffle 55 blocks the maximum number of sieve holes it can block, and the rotating rod 9 that continues to rotate drives the rotating shaft 521 to continue rotating through the bevel gear set 10. Since the shaft sleeve 522 is stuck at this time, the rotating shaft 521 that continues to rotate moves relative to the shaft sleeve 522, and continues to make the corresponding material control plates 44 move closer to each other, further adjusting and reducing the discharge rate of the discharge pipe 41.

[0042] See also Figure 2 、 Figure 4 、 Figure 5 and Figure 6The upper end of the rotating shaft 62 is fixedly connected to the driving rod 61 and the lower end of the rotating shaft 62 is fixedly connected to the driving rod 61.

[0043] It should be noted that the exterior of the material shifting fork 63 and the shifting rod 66 is made of rubber material to avoid damage to the sheath material during stirring.

[0044] After the sheathing material is poured into the material tank 1, the driving motor 65 is controlled to run and drive the rotating shaft 62 to rotate. The rotating shaft 62 then drives the shifting rod 66 to rotate through the support rod, stirring the sheathing material in the material tank 1, so that the sheathing material is accelerated to pass through the material separation screen plate 51 and then enter the discharge pipe 41. The rotating shaft 62 drives the cam 64 to rotate at the same time. During the rotation of the cam 64, when its raised portion contacts the sliding rod 61, it pushes the sliding rod 61 to move in the direction away from the rotating shaft 62. After the raised portion of the cam 64 passes through the sliding rod 61, the sliding rod 61 moves closer to the rotating shaft 62 under the action of the return spring. The reciprocating motion of the sliding rod 61 drives the shifting fork 63 to reciprocate along the radial direction of the rotating shaft 62 in the inner cavity of the discharge pipe 41, and the sheathing material entering the discharge pipe 41 is reciprocated to shift, thereby accelerating the discharge speed. When the lower port of the discharge pipe 41 is adjusted to a small size, smooth discharge can also be ensured.

[0045] During operation, all the cable sheath material is poured into the material tank 1, and then the rotating rod 9 is rotated according to the discharge rate requirement, and then the size of the lower port of the discharge pipe 41 in the multi-speed discharge part 4 is adjusted. The rotating rod 9 is rotated and adjusted at the same time to trigger the material control mechanism 5 to operate, so that the number of sieve holes in the open state on the material separation screen plate 51 in the material control mechanism 5 is adjusted synchronously with the size of the lower port of the discharge pipe 41, and then the material digging mechanism 6 is controlled to operate. The material digging mechanism 6 reciprocates the sheath material entering the discharge pipe 41, and then stirs the material tank 1 to speed up the discharge of the sheath material outward, ensuring that the sheath material can be smoothly discharged. The sheath material discharged from the discharge pipe 41 is gathered together at the bottom of the conical cavity at the lower part of the material tank 1 and then discharged uniformly.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0049] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage feeding structure for feeding cable sheath material, including a material tank, characterized by: The inner cavity of the material tank is fixedly connected to a partition, the lower end surface of the partition is fixedly connected to a mounting cylinder, and a multi-stage discharge part for adjusting the discharge amount in multiple stages when discharging the material from the material tank is installed on the partition; The multi-stage discharge part includes a plurality of discharge pipes that are circumferentially equidistantly connected to the lower part of the partition and communicate with the upper inner cavity of the material tank. The lower end surfaces of the two short-direction wall plates in the discharge pipe are provided with slide grooves, and slide plates are slidably connected in the slide grooves. A material control plate is symmetrically slidably connected between the two long-direction wall plates in the discharge pipe. A follower baffle is hinged between the material control plate and the corresponding slide plate. The mounting cylinder is provided with an adjustment unit for adjusting the distance between the corresponding two material control plates so as to adjust the discharge amount of the discharge pipe. A material control mechanism is provided between the material tank and the mounting cylinder for adaptively cooperating with the multi-stage blanking part when adjusting different blanking amounts. A material shifting mechanism is provided between the material tank and the multi-stage blanking part for accelerating the blanking speed of the cable sheath material.

2. The multi-stage feeding structure for cable sheath material according to claim 1, characterized in that: The adjusting unit includes a screw, a screw sleeve threadedly connected to the outside of the screw, a plurality of sliding rods equidistantly circumferentially penetrating and slidingly connected to the mounting cylinder and corresponding to the discharge pipe, and a plurality of sliding frame groups equidistantly fixedly connected to the outer wall of the screw sleeve and corresponding to the sliding rods. A fixed plate is fixedly connected to the lower part of the inner cavity of the mounting cylinder, and the screw is rotatably connected to the end face of the fixed plate. A sliding column is fixedly connected to the outer wall of the sliding rod and is slidingly connected to the sliding frame group. A connecting rod is hinged on the side of the material control plate close to the mounting cylinder, and the corresponding two connecting rods are hinged to the end of the sliding rod close to one end of the mounting cylinder.

3. The multi-stage feeding structure for cable sheath material according to claim 2, characterized in that: The material control mechanism includes a rotating unit, a material separation screen plate and an arc-shaped baffle. The material separation screen plate is fixedly connected to the inner cavity of the material tank and directly above the baffle. Two arc-shaped through grooves 2 with rotational symmetry are provided on the baffle. The rotating unit is installed on the mounting cylinder. Two pillars are installed on the rotating unit, respectively passing through the arc-shaped through grooves 2. The upper ends of the two pillars are fixedly connected to a supporting ring. The upper end surface of the supporting ring is fixedly connected to a number of arc-shaped baffles that fit on the lower end surface of the material separation screen plate at equal intervals in the circumference.

4. The multi-stage feeding structure for cable sheath material according to claim 3, characterized in that: The material shifting mechanism includes a plurality of sliding rods equidistantly spaced around the periphery and slidingly connected to the mounting cylinder, and a rotating shaft rotatably connected to the partition. A return spring is fixedly connected between the sliding rod and the discharge tube. The end of the sliding rod located in the inner cavity of the discharge tube is fixedly connected to a material shifting fork, and the lower end of the rotating shaft is fixedly connected to a cam for cooperating with the sliding rod.

5. The multi-stage feeding structure for cable sheath material according to claim 4, characterized in that: The upper part of the inner cavity of the material tank is fixedly connected to the driving motor through a connecting rod, the upper end of the rotating shaft passes through the material separation screen plate and is fixedly connected to the output shaft of the driving motor, and a number of support rods are fixedly connected to the outer wall of the rotating shaft and located directly above the material separation screen plate at equal distances in the circumference, and the lower end face of each support rod is fixedly connected to a number of shift rods at equal distances along the radial direction of the rotating shaft.

6. The multi-stage feeding structure for cable sheath material according to claim 3, characterized in that: The rotating unit includes a rotating shaft, a sleeve and a push rod. The inner wall of the mounting cylinder is fixedly connected to a connecting plate, the lower end face of the connecting plate is rotatably connected to the rotating shaft, the outside of the rotating shaft is rotatably connected to the sleeve, two arc-shaped through grooves 1 that are rotationally symmetrically distributed are provided on the mounting cylinder, and two push rods that respectively pass through the arc-shaped through grooves 1 are symmetrically fixedly connected to the outside of the sleeve, and the support is fixedly connected to the upper end face of the push rod.

7. A multi-stage feeding structure for feeding cable sheath material according to claim 6, characterized in that: A rotating rod is connected between the installation cylinder and the material tank for common rotation, and the rotating rod, the screw and the rotating shaft are connected to each other through a bevel gear set.

8. The multi-stage feeding structure for cable sheath material according to claim 1, characterized in that: The upper end side of the partition is a conical surface, and the upper end side of the partition is fixedly connected to the material guide ring seat. The upper end side of the material guide ring seat is inclined from top to bottom toward the upper end port of the discharge pipe.

9. The multi-stage feeding structure for cable sheath material according to claim 3, characterized in that: The two pillars are externally fixedly connected to a retaining ring which is attached to the upper surface of the partition and is used to block the second arc-shaped through groove.

10. The multi-stage feeding structure for cable sheath material according to claim 1, characterized in that: A guide groove is symmetrically provided on one side of the material control plate close to the inner cavity of the material discharge pipe, and a guide bar symmetrically fixedly connected to the inner cavity wall of the material discharge pipe and slidably connected to the guide groove is fixedly provided.

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