Insulating layer extruder for cable manufacturing

Abstract

The invention discloses an insulating layer extruder for cable manufacturing, and belongs to the field of cable manufacturing equipment. The extruder body is fixedly mounted at the upper end of the bracket and comprises a shell; a rotating shaft is arranged in the center of the shell, one end of the rotating shaft penetrates through the shell to be fixedly connected with an output shaft of a transmission, a transmission gear is fixedly connected to an input shaft of the transmission, and the transmission gear is meshed with a gear on an output shaft of a motor fixedly connected to the support. The rotating direction of the spiral plate II is opposite to the rotating direction of the spiral plate I and the rotating direction of the spiral plate III, and the opposite faces of the spiral plate II and the spiral plate I are fixedly connected with movable devices. According to the device, raw materials which are not in a molten state can be pushed to move in the direction of the spiral plate I through rotation of the spiral plate II until the raw materials are in the molten state and then flow to the position of the spiral plate III through the penetrating holes, the situation that the penetrating holes are blocked by small particles, and the flow is affected is avoided, and the raw materials can be stirred through the sliding rod; and uniform heating is ensured.

Description

Technical Field

[0001] The invention relates to an insulating layer extruder for cable manufacturing, belonging to the field of cable manufacturing equipment. Background Art

[0002] When manufacturing the insulation layer of the cable, the insulation layer may be heated unevenly, resulting in small particles that are not plasticized well in the insulation layer, which in turn affects the quality of the insulation layer. Although common extruders are equipped with screens at the extrusion port to filter small particles, raw materials that have not reached the molten state can easily clog the screen and affect the output of the extruder per unit time, thereby affecting subsequent molding and other operations. If it is not cleaned for a long time, it will cause the equipment to be unusable. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide an insulation layer extruder for cable manufacturing.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions: An insulating layer extruder for cable manufacturing comprises a transmission gear, a transmission, an extruder body and a movable device; the extruder body is fixedly mounted on the upper end of a bracket, and the extruder body comprises a shell; a rotating shaft is arranged at the center of the shell, one end of the rotating shaft passes through the shell and is fixedly connected to the output shaft of the transmission, a transmission gear is fixedly connected to the input shaft of the transmission, and the transmission gear meshes with a gear on the output shaft of a motor fixedly connected to the bracket; an extrusion port is arranged at the end of the shell away from the transmission; an end of the rotating shaft close to the extrusion port is connected to the inner wall of the shell through a fixing member; a feed hopper connected to the inside of the shell is fixedly connected to the upper end of the shell; a spiral plate I, a spiral plate II and a spiral plate III are fixedly connected to the rotating shaft in sequence from the end where the feed funnel is located to the end where the extrusion port is located; the rotation direction of the spiral plate II is opposite to that of the spiral plates I and III, and a plurality of movable devices are fixedly connected to the opposite surfaces of the spiral plates II and I.

[0005] The spiral plate II is provided with a plurality of perforations; The movable device comprises a connecting rod; the two ends of the connecting rod are respectively fixedly connected to the opposite surfaces of the spiral plate I and the spiral plate II, and a sliding rod is provided on the connecting rod to slide with the connecting rod; the sliding rod slides with the arc groove I and the arc groove II; The side surface of the slide rod is fixedly connected with a plurality of insertion rods which are slidably matched with the through holes at corresponding positions on the spiral plate II.

[0006] Preferably, the diameter of the perforations on the spiral plate II gradually decreases from close to the spiral plate I to away from the spiral plate I.

[0007] Preferably, a gap is left between the spiral plate II and the spiral plate I, and the movable device is located in the gap.

[0008] Preferably, an arc groove I and two arc grooves II are provided on the inner wall of the shell in the gap between the spiral plate II and the spiral plate I; the two ends of the two arc grooves II are connected to each other, and the two ends of each arc groove II are respectively connected to the two ends of the arc groove I; a groove is provided on the inner wall of the shell between the two arc grooves II, and a round rod connected to the inner wall of the shell through a bearing is provided between the two arc grooves II; three transmission rods are fixedly connected to the outer circumferential surface of the round rod, one of the transmission rods is located in the arc groove I, and one of the remaining two transmission rods is located in the groove, and the other is located in one of the arc grooves II.

[0009] Preferably, the included angles between the arc groove I and each arc groove II are equal.

[0010] Preferably, the connecting rod is parallel to the rotating shaft.

[0011] Preferably, there are an odd number of movable devices, and the number of movable devices is greater than or equal to 3.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can not only push the raw materials that have not reached the molten state to move in the direction of the spiral plate I through the rotation of the spiral plate II until they reach the molten state and flow to the position of the spiral plate III through the perforations, thereby preventing small particles from blocking the perforations and affecting the flow rate, but also the present invention can stir the raw materials through the sliding rod to ensure that they are heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional view of an insulation layer extruder for cable manufacturing of the present invention; Figure 2 It is a cross-sectional view of an extruder body of an insulation layer extruder for cable manufacturing of the present invention; Figure 3 It is a cross-sectional view of a housing of an insulation layer extruder for cable manufacturing of the present invention; Figure 4 yes Figure 3 Sectional view in the AA direction; Figure 5 yes Figure 3 Cross-sectional view in the BB direction; Figure 6 The invention is a schematic diagram of the connection structure of the arc groove I, arc groove II, groove, round rod and transmission rod of an insulation layer extruder for cable manufacturing Figure 1 ; Figure 7 The invention is a schematic diagram of the connection structure of the arc groove I, arc groove II, groove, round rod and transmission rod of an insulation layer extruder for cable manufacturing Figure 2 ; Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of E; Fig. 9 It is a structural schematic diagram of a movable device of an insulation layer extruder for cable manufacturing of the present invention; Fig.10 It is a side view of a movable device of an insulation layer extruder for cable manufacturing of the present invention; Fig.11 It is a schematic diagram of a state in which a slide bar of an insulation layer extruder for cable manufacturing of the present invention moves to the inside of one of the arc-shaped grooves II; Fig.12 It is a schematic diagram of a state in which a slide bar of an insulation layer extruder for cable manufacturing of the present invention moves to the inside of another arc groove II; Fig.13 The present invention is a schematic diagram of a sliding bar of an insulating layer extruder for cable manufacturing sliding in an arc groove I.

[0014] In the figure: 1. bracket; 2. transmission gear; 3. transmission; 4. extruder body; 41. housing; 42. feed hopper; 43. rotating shaft; 44. spiral plate I; 45. arc groove I; 46. arc groove II; 47. groove; 48. round rod; 49. transmission rod; 410. spiral plate II; 411. spiral plate III; 412. fixing piece; 413. extrusion port; 5. movable device; 51. connecting rod; 52. sliding rod; 53. plug rod. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] Specific implementation method 1: Figure 1-13As shown, this embodiment describes an insulating layer extruder for cable manufacturing, including a transmission gear 2, a transmission 3, an extruder body 4 and a movable device 5; the extruder body 4 is fixedly mounted on the upper end of the bracket 1, and the extruder body 4 includes a shell 41; a rotating shaft 43 is provided at the center of the shell 41, one end of the rotating shaft 43 passes through the shell 41 and is fixedly connected to the output shaft of the transmission 3, a transmission gear 2 is fixedly connected to the input shaft of the transmission 3, and the transmission gear 2 is meshed with a gear on the output shaft of the motor fixedly connected to the bracket 1; an extrusion port is provided at one end of the shell 41 away from the transmission 3 413; one end of the rotating shaft 43 near the extrusion port 413 is connected to the inner wall of the housing 41 through a fixing member 412; a feed hopper 42 connected to the interior of the housing 41 is fixedly connected to the upper end of the housing 41; a spiral plate I 44, a spiral plate II 410 and a spiral plate III 411 are fixedly connected to the rotating shaft 43 in sequence from the end where the feed hopper 42 is located to the end where the extrusion port 413 is located; the rotation direction of the spiral plate II 410 is opposite to that of the spiral plate I 44 and the spiral plate III 411, and a plurality of movable devices 5 are fixedly connected to the opposite surfaces of the spiral plate II 410 and the spiral plate I 44. The bracket 1 is tilted so that the extruder body 4 at its upper end is tilted, thereby facilitating the movement of the raw material in a molten state to the extrusion port 413. The angle corresponding to the spiral plate II 410 from one end to the other end is at least 720°.

[0017] The spiral plate II 410 is provided with a plurality of perforations to facilitate the raw material in a molten state to flow toward the spiral plate III 411 and be pushed out from the extrusion port 413 through the spiral plate III 411 .

[0018] The diameter of the perforations on the spiral plate II 410 gradually decreases from the direction close to the spiral plate I 44 to the direction away from the spiral plate I 44. The gradually decreasing diameter of the perforations can effectively intercept particles of various diameters.

[0019] There is a gap between the spiral plate II 410 and the spiral plate I 44, and the movable device 5 is located in the gap. The movable device 5 is used to stir the raw materials in the gap to facilitate uniform heating.

[0020] An arc groove I45 and two arc grooves II46 are provided on the inner wall of the shell 41 in the gap between the spiral plate II410 and the spiral plate I44; the two ends of the two arc grooves II46 are connected to each other, and the two ends of each arc groove II46 are respectively connected to the two ends of the arc groove I45; a groove 47 is provided on the inner wall of the shell 41 between the two arc grooves II46, and a round rod 48 connected to the inner wall of the shell 41 through a bearing is provided between the two arc grooves II46; three transmission rods 49 are fixedly connected to the outer circumferential surface of the round rod 48, one of the transmission rods 49 is located in the arc groove I45, and one of the remaining two transmission rods 49 is located in the groove 47, and the other is located in one of the arc grooves II46.

[0021] The included angles of the arc groove I 45 and each arc groove II 46 are equal.

[0022] The movable device 5 comprises a connecting rod 51; the two ends of the connecting rod 51 are respectively fixedly connected to the opposite surfaces of the spiral plate I 44 and the spiral plate II 410, and a sliding rod 52 is provided on the connecting rod 51 to slide with the connecting rod 51; the sliding rod 52 slides with the arc groove I 45 and the arc groove II 46. The sliding rod 52 moves from the arc groove I 45 into the two arc grooves II 46 respectively during the movement, thereby changing the stirring direction and ensuring a more sufficient stirring effect.

[0023] The connecting rod 51 is parallel to the rotating shaft 43 .

[0024] The movable devices 5 are provided in odd numbers, and the number of the movable devices 5 is greater than or equal to 3. The provision of an odd number of movable devices 5 enables the same movable device 5 to enter different arc grooves II 46 when it moves to the positions of the arc grooves I 45 and II 46 twice adjacently, thereby ensuring that the insertion rod 53 at each position can clean the perforations at the corresponding positions, thereby preventing the perforations at a certain position from being blocked and unable to be cleaned, thereby affecting the flow rate.

[0025] The side of the slide rod 52 is fixedly connected with a plurality of insertion rods 53 which are slidably matched with the through holes at corresponding positions on the spiral plate II 410 .

[0026] The working principle of the present invention is: the bracket 1 is tilted so that the end where the extrusion port 413 is located is lower than the height of the other end. When using the device, the raw material is put into the feed hopper 42. Under the action of gravity, the raw material moves to the inside of the shell 41 and enters the spiral plate I 44. The motor is started, and the motor drives the rotating shaft 43 to rotate through the transmission 3, thereby driving the spiral plate I 44, the spiral plate II 410 and the spiral plate III 411 to rotate. Since the rotation direction of the spiral plate II 410 is opposite to that of the spiral plate I 44, when the spiral plate I 44 pushes the raw material in the direction where the extrusion port 413 is located, the spiral plate II 410 pushes the raw material in the direction where the spiral plate I 44 is located. The shell 41 is provided with an electric heating wire to heat the raw material. After the raw materials reach a molten state, since the shell 41 is tilted along with the support 1, the molten raw materials move through the perforations toward the spiral plate III 411 under the action of gravity. When the incompletely molten particles contact the plate surface of the spiral plate II 410, they cannot pass through the perforations. Under the continuous accumulation and impact of the molten raw materials, the particles approach the position where the spiral plate II 410 contacts the inner wall of the shell 41. Then, the thrust of the spiral plate II 410 during rotation causes the particles to move toward the spiral plate I 44, thereby preventing the particles from being accumulated in the spiral plate II 410 for a long time and causing blockage. At the same time, the particles can be re-entered into the gap between the spiral plate II 410 and the spiral plate I 44 to facilitate mixing with other raw materials. During the rotation of the spiral plates I 44 and II 410, the opposite surfaces of the spiral plates I 44 and II 410 also drive the connecting rod 51 to rotate. Since the spiral plates I 44 and II 410 are relatively stationary during the rotation, during the rotation of the connecting rod 51, the connecting rod 51 drives the sliding rod 52 to slide in the arc grooves I 45 and II 46, stirring the raw materials in the gap between the spiral plates I 44 and II 410 to ensure that they are evenly heated. As the instruction manual Figure 8 , 13 As shown, during the process of the connecting rod 51 rotating around the rotating shaft 43, the spiral plate I 44 and the spiral plate II 410 rotate accordingly, thereby driving the connecting rod 51 fixedly connected between the spiral plates I 44 and the spiral plates II 410 to rotate, so as to drive the sliding rod 52 to move in the arc groove I 45. When the sliding rod 52 moves to the connection between the arc groove I 45 and the arc groove II 46 (as shown in FIG. Fig.13 In the state shown in the figure, since the transmission rod 49 located in the arc groove Ⅰ 45 is pressed against the inner wall of one side of the arc groove Ⅰ 45, when the slide bar 52 contacts the transmission rod 49 located in the arc groove Ⅰ 45, since the transmission rod 49 located in the arc groove Ⅰ 45 is pressed against the inner wall of the arc groove Ⅰ 45, the transmission rod 49 located in the arc groove Ⅰ 45 cannot move in the direction where the arc groove Ⅱ 46 is located, and therefore cannot push the transmission rod 49 to move. Therefore, the transmission rod 49 is blocked by the transmission rod 49 in the arc groove Ⅰ 45, causing the slide bar 52 to move. Figure 8 , 13 The sliding rod 52 continues to slide in the arc groove II 46 on the left side of the direction shown. There is a second transmission rod 49 in the arc groove II 46. When the sliding rod 52 moves in the arc groove II 46, it pushes the second transmission rod 49 to move, thereby driving the round rod 48 to rotate, so that the second transmission rod 49 moves into the groove 47. The third transmission rod 49 located in the groove 47 moves to the third transmission rod 49 as the round rod 48 rotates. Figure 8 , 13 At the same time, the round rod 48 also drives the transmission rod 49 located in the arc groove Ⅰ 45 to rotate, so that it abuts against the inner wall on the other side of the arc groove Ⅰ 45. When the sliding rod 52 on the next movable device 5 moves to the connection between the arc groove Ⅰ 45 and the arc groove Ⅱ 46, it is blocked by the transmission rod 49 located in the arc groove Ⅰ 45 and moves to Figure 8 , 13 The sliding bars 52 on the two adjacent movable devices 5 will not enter the same arc groove II 46, so that the moving trajectories of the sliding bars 52 of the two adjacent movable devices 5 are different, so that the stirring directions are different, thereby ensuring more thorough stirring; Since there is an angle between the arc groove Ⅰ45 and the arc groove Ⅱ46, and the angle is less than 180°, the lowest points of the two arc grooves Ⅱ46 are at different horizontal distances from the spiral plate Ⅱ410. Therefore, when the slide rod 52 on the movable device 5 slides into the two arc grooves Ⅱ46 respectively, the distance between the slide rod 52 and the spiral plate Ⅱ410 is different. When the slide rod 52 moves to the inside of the arc groove Ⅱ46 closer to the spiral plate Ⅱ410, the insertion rod 53 on the slide rod 52 is inserted into the through hole on the outermost end face of the spiral plate Ⅱ410, which can push out the particles stuck in the through hole, thereby avoiding the blockage of the through hole.

Claims

1. An insulation layer extruder for cable manufacturing, characterized in that: The invention comprises a transmission gear (2), a transmission (3), an extruder body (4) and a movable device (5); the extruder body (4) is fixedly mounted on the upper end of a bracket (1), and the extruder body (4) comprises a housing (41); a rotating shaft (43) is provided at the center of the housing (41), one end of the rotating shaft (43) passes through the housing (41) and is fixedly connected to an output shaft of the transmission (3); a transmission gear (2) is fixedly connected to the input shaft of the transmission (3), and the transmission gear (2) meshes with a gear on an output shaft of a motor fixedly connected to the bracket (1); an end of the housing (41) away from the transmission (3) is provided with an extrusion port (413); the rotating shaft (43) ) is connected to the inner wall of the housing (41) through a fixing member (412); the upper end of the housing (41) is fixedly connected to a feed hopper (42) which is in communication with the interior of the housing (41); a spiral plate I (44), a spiral plate II (410) and a spiral plate III (411) are fixedly connected to the rotating shaft (43) in sequence from the end where the feed hopper (42) is located to the end where the extrusion port (413) is located; the rotation direction of the spiral plate II (410) is opposite to that of the spiral plate I (44) and the spiral plate III (411), and a plurality of movable devices (5) are fixedly connected to the opposite surfaces of the spiral plate II (410) and the spiral plate I (44); The spiral plate II (410) is provided with a plurality of through holes; The movable device (5) comprises a connecting rod (51); the two ends of the connecting rod (51) are respectively fixedly connected to the opposite surfaces of the spiral plate I (44) and the spiral plate II (410); the connecting rod (51) is provided with a sliding rod (52) slidably matched with the connecting rod (51); the sliding rod (52) is slidably matched with the arc groove I (45) and the arc groove II (46); A plurality of insertion rods (53) are fixedly connected to the side of the slide rod (52) and are slidably matched with the perforations at corresponding positions on the spiral plate II (410).

2. The insulation layer extruder for cable manufacturing according to claim 1, characterized in that: The diameter of the perforations on the spiral plate II (410) gradually decreases from the direction close to the spiral plate I (44) to the direction away from the spiral plate I (44).

3. The insulation layer extruder for cable manufacturing according to claim 2, characterized in that: A gap is left between the spiral plate II (410) and the spiral plate I (44), and the movable device (5) is located in the gap.

4. An insulation layer extruder for cable manufacturing according to claim 1 or 3, characterized in that: An arc groove I (45) and two arc grooves II (46) are provided on the inner wall of the housing (41) in the gap between the spiral plate II (410) and the spiral plate I (44); the two ends of the two arc grooves II (46) are connected to each other, and the two ends of each arc groove II (46) are respectively connected to the two ends of the arc groove I (45); a groove (47) is provided on the inner wall of the housing (41) between the two arc grooves II (46); a round rod (48) connected to the inner wall of the housing (41) through a bearing is provided between the two arc grooves II (46); three transmission rods (49) are fixedly connected to the outer circumferential surface of the round rod (48), one of the transmission rods (49) is located in the arc groove I (45), and one of the remaining two transmission rods (49) is located in the groove (47) and the other is located in one of the arc grooves II (46).

5. The insulation layer extruder for cable manufacturing according to claim 4, characterized in that: The included angles of the arc-shaped groove I (45) and each arc-shaped groove II (46) are equal.

6. The insulation layer extruder for cable manufacturing according to claim 5, characterized in that: The connecting rod (51) is parallel to the rotating shaft (43).

7. An insulation layer extruder for cable manufacturing according to claim 6, characterized in that: The movable devices (5) are provided in odd number, and the number of the movable devices (5) is greater than or equal to 3.

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