Cutting structure for preparing semi-conductive thermoplastic shielding material

Abstract

The utility model relates to the technical field of shielding material preparation and cutting, and discloses a cutting structure for preparation of a semi-conductive thermoplastic shielding material, which comprises a material guide table, one end of the material guide table is in butt joint with a thermoplastic machine discharge port, one side of the material guide table is provided with a collecting table, and the top end of the collecting table is provided with a collecting groove. A second supporting plate is installed on the side, away from the collecting table, of the material guiding table. Through the rotation of the reciprocating screw rod, the movable sleeve drives the pushing plate to reciprocate left and right, and the moving rod moves along an inverted L shape under the guide action of the pushing plate and the guide groove on the moving rod, namely, the moving rod moves horizontally after moving upwards during cutting, so that the cutting knife automatically enters between the left cleaning pad and the right cleaning pad to rub, and the cutting efficiency is improved. And therefore, scraps of cut semi-conductive thermoplastic shielding material finished products can be automatically cleaned into the collecting tank to be collected, and the automatic cleaning effect of the cutting knife in the cutting process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding material preparation and cutting, in particular to a cutting structure for preparing semi-conductive thermoplastic shielding material. Background Art

[0002] Semi-conductive thermoplastic shielding material is one of the essential components of medium and high voltage cables. It is made of polyethylene as the base material and carbon black, etc., and is thermoplasticized after high-temperature mixing. In order to ensure that the finished product can adapt to the use of cables, it needs to be cut with a cutting mechanism after thermoplastic extrusion to cut the finished product;

[0003] Since the preparation of semi-conductive thermoplastic shielding materials requires thermoplastic extrusion processing, the finished product is soft during the cutting process. Therefore, the finished shielding material is prone to partially adhere to the cutting blade during the cutting process. In order to ensure the cutting efficiency, the existing cutting structure is generally continuous cutting, and it is not easy to clean the cutting blade simultaneously during the cutting process, which makes the sticky debris easily affected by natural cooling and tightly adhere to the bottom of the cutting blade, thereby affecting the subsequent cutting effect. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to provide a cutting structure for preparing semi-conductive thermoplastic shielding materials, so as to solve the problem that the existing cutting structure for preparing semi-conductive thermoplastic shielding materials proposed in the above background technology is not easy to clean the cutting knife synchronously.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting structure for preparing semi-conductive thermoplastic shielding material, comprising a material guide table, one end of the material guide table is connected to the material outlet of the thermoplastic machine, a collecting table is installed on one side of the material guide table, and a collecting groove is provided at the top of the collecting table, a second support plate is installed on the side of the material guide table away from the collecting table, and a first support plate is installed on the side of the collecting table opposite to the second support plate, two guide plates are relatively arranged between the first support plate and the second support plate, and guide grooves are provided on the opposite sides of the two guide plates, a moving rod is connected through the guide grooves, and a guiding mechanism is provided at the outer end of the moving rod to drive the moving rod to move continuously in the up and down and horizontal directions, U-shaped frames are sleeved on both ends of the outer side of the moving rod, and the bottom end of the U-shaped frame extends to the inside of the material guide table and is installed with a cutting knife, two support blocks are relatively arranged on both sides of the top of the collecting table, and fixed boxes are installed on the opposite sides of the two support blocks, cleaning pads are installed on the opposite sides of the two fixed boxes, and the spacing between the cleaning pads is adapted to the thickness of the cutting knife.

[0006] Preferably, the cross-section of the guide groove is an inverted L-shape, wherein when the movable rod moves in the longitudinal direction, the cutting knife cuts up and down, and when the movable rod moves in the transverse direction, horizontal scraping between the cutting knife and the cleaning pad is achieved.

[0007] Preferably, the guiding mechanism includes a servo motor installed on the top of one side of the first support plate, and a reciprocating screw is installed on one end of the servo motor, one end of the reciprocating screw passes through the first support plate and extends to one side of the second support plate, the outer part of the reciprocating screw is provided with a movable sleeve, and a pushing plate is installed on the bottom end of the movable sleeve, the movable sleeve and the guide plate form a left and right sliding structure, a guide hole is opened inside the pushing plate, and the guide hole is sleeved on the outside of the moving rod.

[0008] Preferably, the push plate is located between the two guide plates, and the push plate is also located on the central axis of the moving rod.

[0009] Preferably, the guide hole is arranged in an inclined shape, and the heights of both ends of the guide hole are adapted to the overall height of the guide groove.

[0010] Preferably, a storage slot is provided at the top of the fixed box, and a flip cover is provided at the top of the storage slot, the interior of the storage slot is evenly filled with ice cubes, and a through hole is formed between one side of the storage slot and the cleaning pad.

[0011] Preferably, one side of the flip cover is hinged to the top of the fixing box, and the through holes are distributed in an array at equal intervals on the fixing box.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The movable sleeve drives the push plate to move back and forth by rotating the reciprocating screw rod, and the push plate and the guide groove guide the moving rod to move along an inverted L shape, that is, the moving rod moves horizontally after cutting and moving upward, so that the cutting knife automatically enters between the left and right cleaning pads for scraping, so that the cleaning pad cleans the bottom of the cutting knife, so that the finished product debris of the cut semi-conductive thermoplastic shielding material is automatically cleaned to the inside of the collecting tank for collection, thereby achieving the automatic cleaning effect of the cutting knife during the cutting process and reducing the accumulation and adhesion of debris;

[0014] (2) Through the function of the through hole, the cold air emitted from the ice cubes can be transferred to the two sides of the cutting knife. During the cleaning process, the cutting knife automatically performs a certain cooling effect. Then, when the cutting knife moves in the opposite direction for cutting under the action of the guide mechanism, the semi-conductive thermoplastic shielding material product after thermoplasticization can be cooled to accelerate the solidification effect of the semi-conductive thermoplastic shielding material product at the cutting position, thereby reducing its adhesion to the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the guide plate distribution of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the push plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the collection platform of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing box of the utility model.

[0021] Explanation of the reference numerals in the figure: 1. material guide table; 2. collection table; 3. collection slot; 4. first support plate; 5. second support plate; 6. guide plate; 7. guide mechanism; 701. servo motor; 702. reciprocating screw rod; 703. movable sleeve; 704. push plate; 705. guide hole; 8. guide slot; 9. moving rod; 10. U-shaped frame; 11. cutting knife; 12. support block; 13. fixing box; 14. storage slot; 15. flip cover; 16. ice cubes; 17. cleaning pad; 18. through hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5The utility model provides an embodiment: a cutting structure for preparing semi-conductive thermoplastic shielding material, comprising a material guide table 1, one end of the material guide table 1 is connected to the material outlet of the thermoplastic machine, a collecting table 2 is installed on one side of the material guide table 1, and a collecting groove 3 is opened on the top of the collecting table 2, a second support plate 5 is installed on the side of the material guide table 1 away from the collecting table 2, and a first support plate 4 is installed on the side of the collecting table 2 opposite to the second support plate 5, two guide plates 6 are arranged oppositely between the first support plate 4 and the second support plate 5, and guide grooves 8 are opened on the opposite sides of the two guide plates 6;

[0024] The cross section of the guide groove 8 is an inverted L-shape, wherein when the moving rod 9 moves in the longitudinal direction, the cutting knife 11 cuts up and down, and when the moving rod 9 moves in the transverse direction, the cutting knife 11 and the cleaning pad 17 are horizontally scraped;

[0025] Specifically, Figure 1 , Figure 2 As shown, when in use, the guide groove 8 is used to limit the moving direction of the moving rod 9, so that the moving rod 9 can only move in an inverted L shape, so that the cutting knife 11 can achieve horizontal movement after the cutting action;

[0026] A moving rod 9 is connected through the guide grooves 8, and a guide mechanism 7 is provided at the outer end of the moving rod 9 to drive the moving rod 9 to move continuously in the up-down and horizontal directions;

[0027] The guide mechanism 7 includes a servo motor 701 installed at the top of one side of the first support plate 4, and a reciprocating screw rod 702 is installed at one end of the servo motor 701, and one end of the reciprocating screw rod 702 passes through the first support plate 4 and extends to one side of the second support plate 5. A movable sleeve 703 is sleeved on the outside of the reciprocating screw rod 702, and a push plate 704 is installed on the bottom end of the movable sleeve 703. The movable sleeve 703 and the guide plate 6 form a left-right sliding structure, and a guide hole 705 is opened inside the push plate 704, and the guide hole 705 is sleeved on the outside of the moving rod 9;

[0028] The push plate 704 is located between the two guide plates 6, and the push plate 704 is also located on the central axis of the moving rod 9;

[0029] The guide hole 705 is arranged in an inclined shape, and the heights of both ends of the guide hole 705 match the overall height of the guide groove 8;

[0030] Specifically, Figure 1 , Figure 2 and Figure 3As shown, when in use, the guide hole 705 is used to further guide the moving rod 9, and the inclined surface inside the guide hole 705 is used to make the push plate 704 move horizontally. In combination with the structural characteristics of the guide groove 8, it can generate an up-down and horizontal driving force on the moving rod 9, so that the moving rod 9 can slide along the direction of the guide groove 8, so that the cutting knife 11 can rise and horizontally move out of the interior of the guide table 1 after cutting, and cooperate with the cleaning pad 17 to achieve an automatic cleaning effect;

[0031] The two ends of the outer side of the moving rod 9 are sleeved with U-shaped frames 10, and the bottom end of the U-shaped frame 10 extends to the inside of the material guide table 1 and is installed with a cutting knife 11. Two supporting blocks 12 are arranged opposite to each other on both sides of the top of the collecting table 2, and the opposite sides of the two supporting blocks 12 are installed with fixing boxes 13;

[0032] A storage slot 14 is provided at the top of the fixed box 13, and a flip cover 15 is provided at the top of the storage slot 14. The storage slot 14 is evenly filled with ice cubes 16. A through hole 18 is formed between one side of the storage slot 14 and the cleaning pad 17.

[0033] One side of the flip cover 15 is hinged to the top of the fixed box 13, and the through holes 18 are distributed in an array with equal spacing on the fixed box 13;

[0034] Cleaning pads 17 are installed on opposite sides of the two fixing boxes 13, and the spacing between the cleaning pads 17 is adapted to the thickness of the cutting blade 11;

[0035] Specifically, Figure 1 , Figure 4 As shown, when in use, the flip cover 15 is utilized to facilitate the addition of ice cubes 16 at any time, and the ice cubes 16 are utilized to achieve surface cooling of the cutting knife 11, thereby increasing the temperature difference between the cutting knife 11 and the finished semi-conductive thermoplastic shielding material, promoting condensation of the cut portion of the finished semi-conductive thermoplastic shielding material, and reducing its adhesion to the cutting knife 11.

[0036] Working principle: When the utility model is used, first, the finished semi-conductive thermoplastic shielding material moves forward along the material guide platform 1, and the servo motor 701 is started to rotate the reciprocating screw rod 702, so that the movable sleeve 703 moves horizontally along the direction of the guide plate 6. When the guide hole 705 intersects with the bending part of the guide groove 8, as the push plate 704 continues to move to the left, the guide hole 705 and the guide groove 8 are longitudinally overlapped, so that the moving rod 9 moves downward under the two limit guides, so that the U-shaped frame 10 drives the cutting knife 11 to press downward, so as to achieve the cutting effect of the finished semi-conductive thermoplastic shielding material;

[0037] Secondly, when the cutting is completed, the movable sleeve 703 moves horizontally in the opposite direction with the continuous rotation of the reciprocating screw rod 702, so that the push plate 704 moves to the right and drives the cutting knife 11 to rise. When the guide hole 705 overlaps with the guide groove 8 in the horizontal direction, it drives the moving rod 9 to move horizontally, so that the U-shaped frame 10 drives the cutting knife 11 to rise and then move to the right, so that the right end of the cutting knife 11 approaches and contacts the two cleaning pads 17. With the continuous translation of the cutting knife 11, the cleaning pad 17 scratches the two sides of the cutting knife 11, so as to clean the semi-conductive thermoplastic shielding material finished product debris that is adhered, and the debris falls into the collecting tank 3 for collection. With the left and right reciprocating movement of the push plate 704, the automatic cleaning effect of the cutting knife 11 after cutting is achieved;

[0038] Finally, when the cutting knife 11 comes into contact with the cleaning pad 17, since the interior of the storage groove 14 is filled with ice cubes 16, the cold air emitted by the ice cubes 16 is transmitted outwardly through the through hole 18 and cools the surface of the cutting knife 11, so that the surface temperature of the cutting knife 11 is lower when cutting, so as to achieve the cooling effect on the cutting position of the finished semi-conductive thermoplastic shielding material, improve its condensation effect, and then reduce the adhesion of cutting debris.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A cutting structure for preparing semi-conductive thermoplastic shielding material, comprising a material guide table (1), characterized in that: One end of the material guide platform (1) is connected to the material outlet of the thermoplastic machine, a collecting platform (2) is installed on one side of the material guide platform (1), and a collecting groove (3) is provided at the top of the collecting platform (2), a second support plate (5) is installed on the side of the material guide platform (1) away from the collecting platform (2), and a first support plate (4) is installed on the side of the collecting platform (2) opposite to the second support plate (5), two guide plates (6) are arranged opposite to each other between the first support plate (4) and the second support plate (5), and guide grooves (8) are provided on the opposite sides of the two guide plates (6), a moving rod (9) is connected through the guide grooves (8), and the moving rod (9) is arranged to move the guide grooves (8) to the collecting platform (2). A guide mechanism (7) is provided at the outer end of the rod (9) to drive the movable rod (9) to move continuously in the up-down and horizontal directions. U-shaped frames (10) are sleeved on both ends of the outer side of the movable rod (9), and the bottom end of the U-shaped frame (10) extends to the inside of the material guide table (1) and is installed with a cutting knife (11). Two supporting blocks (12) are arranged oppositely on both sides of the top of the collecting table (2), and fixed boxes (13) are installed on the opposite sides of the two supporting blocks (12). Cleaning pads (17) are installed on the opposite sides of the two fixed boxes (13), and the spacing between the cleaning pads (17) is adapted to the thickness of the cutting knife (11).

2. A cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 1, characterized in that: The cross section of the guide groove (8) is an inverted L-shape, wherein when the moving rod (9) moves in the longitudinal direction, the cutting knife (11) can cut up and down, and when the moving rod (9) moves in the transverse direction, horizontal scraping between the cutting knife (11) and the cleaning pad (17) can be achieved.

3. The cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 1, characterized in that: The guide mechanism (7) comprises a servo motor (701) mounted on the top of one side of the first support plate (4), and a reciprocating screw rod (702) is mounted on one end of the servo motor (701), and one end of the reciprocating screw rod (702) passes through the first support plate (4) and extends to one side of the second support plate (5), a movable sleeve (703) is sleeved on the outside of the reciprocating screw rod (702), and a push plate (704) is mounted on the bottom end of the movable sleeve (703), and the movable sleeve (703) and the guide plate (6) form a left-right sliding structure, and a guide hole (705) is opened inside the push plate (704), and the guide hole (705) is sleeved on the outside of the moving rod (9).

4. A cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 3, characterized in that: The pushing plate (704) is located between the two guide plates (6), and the pushing plate (704) is also located on the central axis of the moving rod (9).

5. The cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 3, characterized in that: The guide hole (705) is arranged in an inclined shape, and the heights of both ends of the guide hole (705) are adapted to the overall height of the guide groove (8).

6. The cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 1, characterized in that: The top of the fixed box (13) is provided with a storage groove (14), and the top of the storage groove (14) is provided with a flip cover (15), the interior of the storage groove (14) is evenly filled with ice cubes (16), and a through hole (18) is formed between one side of the storage groove (14) and the cleaning pad (17).

7. A cutting structure for preparing a semi-conductive thermoplastic shielding material according to claim 6, characterized in that: One side of the flip cover (15) is hinged to the top of the fixed box (13), and the through holes (18) are distributed in an array at equal intervals on the fixed box (13).

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