Front core penetrating mechanism for nylon pipe bending machine

Abstract

The utility model discloses a front core penetrating mechanism for a nylon tube bending machine, which relates to the technical field of nylon tube manufacturing equipment and comprises a driving component provided with a first slide rail. One end of the supporting column is slidably connected to the first sliding rail, and the other end is provided with a mounting plate. The traction assembly is mounted on the mounting plate; a mounting channel for clamping a core tube is formed between the traction part I and the traction part II of the traction assembly; the first traction part and the second traction part move relatively to form a narrowed mounting channel so as to clamp the core tube; the traction part I and the traction part II rotate synchronously so as to realize continuous traction of the core tube to a nylon tube workpiece to be subjected to core penetration; the positioning assemblies are fixedly mounted on the mounting plate and distributed on the two sides of the traction assembly; the core tube penetrates in along one side of the positioning assembly and extends to the other side of the positioning assembly through the mounting channel to penetrate out; the equipment is optimized in structure, the first traction part and the second traction part continuously drag the core pipe, the core pipe is stably conveyed in the core penetrating process, the equipment is automatic, and the machining technology is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of nylon tube manufacturing equipment, in particular to a front core-penetrating mechanism for a nylon tube bending machine. Background Art

[0002] Nylon tube is a synthetic fiber with good physical, chemical and mechanical properties, wear resistance, and can be used in the presence of sand, stone, and iron filings; the surface is smooth, which reduces resistance and can prevent rust and scaling; it is soft, easy to bend, and easy to install; in the automotive industry, nylon tubes have been used to this day. In specific use, nylon tubes need to be bent in different directions to different angles; when using a pipe bender to bend a pipe, there are two ways: with a core and without a core. A cored pipe is bent in which there is a core rod inside the pipe. The effective distance of the core determines the maximum length of the cored bent pipe. If coreless bending is used, the length of the pipe is unlimited. If the pipe needs to be bent with a core, the equipment needs to be customized according to the length of the bent pipe.

[0003] The Chinese utility model patent (publication number 211492808U) discloses a nylon tube automatic heating and forming equipment, including a machine body, a feeding assembly, a heating assembly and a bending assembly. The heating assembly includes an oven connected to the feeding assembly and an electric heating cylinder arranged between the oven and the bending assembly. A heating coil is arranged in the electric heating cylinder. The nylon tube is fed from the feeding assembly and enters the bending assembly through the oven and the heating coil. The electric heating cylinder and the bending assembly are arranged outside the machine body. An air cooling system and a cutting device are arranged outside the bending assembly. The feeding assembly has an upper conveyor belt and a lower conveyor belt. The nylon tube is clamped and continuously pulled by the upper conveyor belt and the lower conveyor belt. The equipment improves the forming accuracy of the nylon tube, ensures the product quality, and improves the processing efficiency.

[0004] In the processing of large-diameter nylon tube products, in order to avoid wrinkles at the bends of the nylon tube during the bending process, it is necessary to perform core penetration treatment on the large-diameter nylon tube before bending. Therefore, a structure for core penetration of the nylon tube is designed to be used in conjunction with the above-mentioned nylon tube automatic heating and forming equipment to solve the problem of wrinkles at the bends of the nylon tube during the bending process. Utility Model Content

[0005] The utility model aims to provide a front core-piercing mechanism for a nylon tube bending machine which has an optimized structure, avoids wrinkles at the bending part of a large-diameter nylon tube during the bending process, ensures the roundness of the processed pipe fittings, and improves production efficiency and production quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A front core-threading mechanism for a nylon tube bending machine, which is controlled by an external control console and is located on the side of the nylon tube bending machine for bending, comprising:

[0008] A drive assembly, wherein the drive assembly has a first slide rail;

[0009] A supporting column, one end of which is slidably connected to the first slide rail and the other end of which is provided with a mounting plate;

[0010] A traction assembly, wherein the traction assembly is mounted on a mounting plate;

[0011] The traction assembly comprises a traction part 1 and a traction part 2;

[0012] An installation channel for clamping the core tube is formed between the first traction part and the second traction part;

[0013] The relative movement of the first traction part and the second traction part causes the installation channel to narrow so as to clamp the core tube;

[0014] The first traction part and the second traction part rotate synchronously to realize continuous traction of the core tube to the nylon tube workpiece to be threaded;

[0015] Positioning components, which are fixedly mounted on the mounting plate and distributed on both sides of the traction component;

[0016] The core tube passes through one side of the positioning component and extends through the installation channel to the other side of the positioning component and passes out.

[0017] Further, it includes an adjustment assembly, wherein the adjustment assembly has a second slide rail;

[0018] Two sets of the second slide rails are arranged in parallel on the mounting plate;

[0019] A first support block and a second support block are slidably disposed on each group of the second slide rails respectively;

[0020] The first support block and the second support block are respectively connected with an air intake pipe;

[0021] One side of the traction part is fixedly mounted on two groups of first support blocks;

[0022] One side of the second traction part is fixedly mounted on two sets of second support blocks;

[0023] Compressed air is injected into the air inlet pipe to drive the first support block and the second support block to slide along the second slide rail;

[0024] The first support block and the second support block slide along the second slide rail to drive the first traction part and the second traction part to move synchronously;

[0025] The first traction part and the second traction part move toward each other to form a mounting channel that gradually decreases to achieve clamping of the core tube;

[0026] The first traction part and the second traction part move in opposite directions to form a gradually enlarged installation channel to loosen the core tube.

[0027] Furthermore, the driving assembly includes:

[0028] A mounting seat, wherein the interior of the mounting seat is hollow to form a sliding space;

[0029] A cover plate, the cover plate being installed at the opening above the mounting seat;

[0030] The cover plate has first sliding grooves formed between the two sides along the length direction and the mounting seat;

[0031] The cover plate is provided with a first slide rail;

[0032] The bottom of the supporting column is slidably connected to the first slide rail.

[0033] Furthermore, a driving block is movably mounted on the cover plate;

[0034] The two side portions of the driving block are located in the first slide groove;

[0035] The bottom of the driving block is located in the sliding space;

[0036] A connecting hole is provided at the bottom of the driving block;

[0037] One end of the mounting seat away from the nylon tube bending machine is connected to a motor;

[0038] The motor is driven and connected with a lead screw;

[0039] The lead screw is located in the sliding space and is adaptively connected to the connecting hole;

[0040] The motor drives the lead screw to rotate so that the drive block moves along the mounting seat to push the support column to slide along the first slide rail.

[0041] Furthermore, the traction part 1 and the traction part 2 have the same structure and are symmetrically distributed;

[0042] The traction part comprises a first fixed plate, a driving gear, a driven gear, a linkage gear, a conveyor belt and two motor parts;

[0043] A groove is formed in the middle of the conveyor belt in the length direction;

[0044] The first fixing plate is fixedly mounted on two groups of first supporting blocks;

[0045] The first fixed plate is sequentially arranged with a driving gear, a linkage gear and a driven gear;

[0046] The driving gear and the driven gear are distributed on both sides of the first fixed plate;

[0047] The linkage gear is distributed between the driving gear and the driven gear;

[0048] The conveyor belt is wrapped around the driving gear, the linkage gear and the driven gear;

[0049] The two motor parts drive the driving gear to rotate to form a driven gear and a linkage gear to rotate synchronously to achieve relative movement of the conveyor belts of the traction part one and the traction part two and to pull the core tube.

[0050] Furthermore, the second traction part has a second fixing plate having the same structure as the first fixing plate;

[0051] The second fixing plate is fixedly mounted on the two groups of second supporting blocks.

[0052] Furthermore, the positioning component includes:

[0053] A fixing block, wherein the fixing block is fixedly mounted on a side of the mounting plate;

[0054] A top plate is fixedly arranged on the fixed block;

[0055] A second slide groove is provided on the top plate;

[0056] A T-shaped slider is slidably installed in the second slide groove;

[0057] The crossbeam of the T-shaped slider is embedded in the second slide groove;

[0058] A clamping block is fixedly installed on one side of the vertical beam of the T-shaped slider;

[0059] A semicircular opening is formed at adjacent locations of the two groups of clamping blocks;

[0060] Two adjacent groups of semicircular openings form a positioning hole for clamping the core tube;

[0061] The two groups of T-shaped sliding blocks slide along the second sliding groove to form a positioning hole that is enlarged or reduced to loosen or clamp the core tube or clamp core tubes of different sizes.

[0062] Furthermore, a limit block is extended from the clamping block away from the driving gear toward the nylon tube bending machine;

[0063] A portion of the two groups of limit blocks forms a limit through hole for clamping the core tube;

[0064] The T-shaped slide block slides along the second slide groove to form a limit through hole that increases or decreases to loosen or clamp the core tube or clamp core tubes of different sizes;

[0065] An opening at one end of the limiting through hole is connected to the positioning hole.

[0066] Furthermore, the mounting plate is provided with a sliding rod with blocked ends;

[0067] A positioning block is slidably mounted on the slide bar;

[0068] The positioning block is located on a side of the second traction part away from the first traction part;

[0069] The second traction part slides along the second support block in a direction away from the first traction part to drive the positioning block to move synchronously.

[0070] Further, it comprises a support frame, and a connecting rod is arranged on the support frame;

[0071] The end of the connecting rod away from the supporting frame forms two limited block parts;

[0072] The second part of the limit block is formed with a mounting hole;

[0073] The core tube passes through the installation hole, the positioning hole, the installation channel and the limiting through hole in sequence.

[0074] In the above technical scheme, the front core-threading mechanism for a nylon tube bending machine of the utility model has the following beneficial effects:

[0075] The utility model provides a front core-threading mechanism for a nylon tube bending machine with optimized structure. The core tube is stably transmitted during the core-threading process. The core tube is continuously pulled by the first traction part and the second traction part, and the position of the core tube will not be offset. The nylon tube is processed after the core is threaded to ensure the roundness of the tube fitting, and wrinkles are avoided at the bending part of the large-diameter nylon tube during the bending process. The equipment is automated, the processing technology is precise, and the production efficiency and production quality are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0077] Figure 1 A schematic structural diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0078] Figure 2 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0079] Figure 3A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0080] Figure 4 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0081] Figure 5 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0082] Figure 6 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0083] Figure 7 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0084] Figure 8 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0085] Fig. 9 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model;

[0086] Fig.10 A partial structural schematic diagram of a front core-threading mechanism for a nylon tube bending machine provided in an embodiment of the utility model.

[0087] Description of reference numerals:

[0088] 1. Control panel; 2. Drive assembly; 3. Support column; 4. Mounting plate; 5. Traction assembly; 6. Positioning assembly; 7. Adjustment assembly;

[0089] 21. first slide rail; 22. mounting seat; 23. cover plate; 24. first slide slot; 25. drive block; 26. motor part; 27. lead screw;

[0090] 251, connection hole;

[0091] 51. Traction unit 1; 52. Traction unit 2;

[0092] 511, first fixed plate; 512, driving gear; 513, driven gear; 514, linkage gear; 515, conveyor belt; 516, second motor part; 517, groove;

[0093] 521, second fixing plate;

[0094] 61. fixed block; 62. top plate; 63. T-shaped slider; 64. clamping block; 65. positioning hole; 66. part of limit block; 67. limit through hole;

[0095] 621, second chute;

[0096] 641, semicircular opening;

[0097] 71. second slide rail; 72. first support block; 73. second support block;

[0098] 81. Sliding rod; 82. Positioning block;

[0099] 91. Support frame; 92. Connecting rod; 93. Second part of limit block; 94. Mounting hole. DETAILED DESCRIPTION

[0100] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0101] It should be noted that the terms "one side", "bottom", "both sides", "above", "one end", "the other end", "outside", "middle" and the like used herein to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for the purpose of illustration, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0102] See also Figure 1-Figure 10 As shown;

[0103] A front core-threading mechanism for a nylon tube bending machine, the mechanism is controlled by an external control console 1, and the mechanism is located on the side of the nylon tube bending machine for bending, comprising:

[0104] A driving assembly 2, the driving assembly 2 having a first slide rail 21;

[0105] A support column 3, one end of the support column 3 is slidably connected to the first slide rail 21, and the other end of the support column 3 is installed with a mounting plate 4;

[0106] A traction assembly 5, wherein the traction assembly 5 is mounted on the mounting plate 4;

[0107] The traction assembly 5 comprises a traction part 51 and a traction part 52;

[0108] An installation channel for clamping the core tube is formed between the first traction part 51 and the second traction part 52;

[0109] The first traction part 51 and the second traction part 52 move relative to each other to narrow the installation passage so as to clamp the core tube;

[0110] The first traction part 51 and the second traction part 52 rotate synchronously to realize continuous traction of the core tube to the nylon tube workpiece to be threaded;

[0111] Positioning components 6, which are fixedly mounted on the mounting plate 4 and distributed on both sides of the traction components 5;

[0112] The core tube passes through one side of the positioning assembly 6 and extends through the installation channel to the other side of the positioning assembly 6 and passes out.

[0113] Specifically, a front core-threading mechanism for a nylon tube bending machine is provided. The device is debugged through a control console 1 before use. In actual operation, a driving component 2 is used to drive other components to move so as to adjust the distance from the nylon tube to be processed. The structure directly connected to the driving component 2 is a support column 3. The support column 3 is vertically located on the driving component 2, wherein the support column 3 is slidably connected to a first slide rail 21 on the driving component 2. A traction component 5 is arranged above the support column 3. The traction component 5 has a traction first part 51 and a traction second part 52. The core tube is located between the traction first part 51 and the traction second part 52. The core tube is moved to the nylon tube to be processed by the traction of the traction first part 51 and the traction second part 52, thereby realizing the nylon tube core-threading process. At the same time, positioning components 6 are distributed on both sides of the traction component 5. When in use, the core tube is first inserted from the positioning component 6 on one side of the traction component 5, and then passed through the traction component 5 and then inserted from the positioning component 6 on the other side. The positioning component 6 plays a positioning role on the core tube to avoid position displacement of the core tube during the traction process.

[0114] An adjusting component 7, the adjusting component 7 has a second slide rail 71;

[0115] Two sets of second slide rails 71 are arranged in parallel on the mounting plate 4;

[0116] A first support block 72 and a second support block 73 are slidably disposed on each set of second slide rails 71;

[0117] The first support block 72 and the second support block 73 are respectively connected with an air intake pipe;

[0118] One side of the traction part 51 is fixedly mounted on two sets of first support blocks 72;

[0119] One side of the second traction part 52 is fixedly mounted on two sets of second support blocks 73;

[0120] Compressed air is injected into the air inlet pipe to drive the first support block 72 and the second support block 73 to slide along the second slide rail 71;

[0121] The first support block 72 and the second support block 73 slide along the second slide rail 71 to drive the first traction part 51 and the second traction part 52 to move synchronously;

[0122] The first traction part 51 and the second traction part 52 move toward each other to form a mounting channel that gradually decreases to achieve clamping of the core tube;

[0123] The first traction part 51 and the second traction part 52 move in opposite directions to form a gradually enlarged installation passage to loosen the core tube.

[0124] Specifically, the distance between the traction part 51 and the traction part 2 52 of the traction assembly 5 needs to be adjusted according to the use requirements, and the adjustment assembly 7 is used to adjust the distance between the traction part 51 and the traction part 2 52, wherein the two groups of second slide rails 71 of the adjustment assembly 7 are arranged in parallel on the mounting plate 4, and the first support block 72 and the second support block 73 are slidably installed on each group of second slide rails 71, and the bottom of the traction part 51 is installed on the two groups of first support blocks 72, and the bottom of the traction part 52 is installed on the two groups of second support blocks 73. The movement displacement of the first support block 72 and the second support block 73 is driven by a compressed air system, that is, each group of first support blocks 72 and second support blocks 73 is connected to an air intake pipe, and compressed air is injected into the air intake pipe. The compressed air pushes the first support block 72 and the second support block 73 to slide along the second slide rail 71, that is, the traction part 51 and the traction part 52 can increase or decrease the distance between adjacent ones, thereby completing the clamping or loosening of the core tube, and can also meet the clamping and traction of core tubes of different sizes.

[0125] The drive assembly 2 comprises:

[0126] A mounting seat 22, wherein the mounting seat 22 is hollow inside to form a sliding space;

[0127] A cover plate 23, the cover plate 23 is installed at the opening above the mounting seat 22;

[0128] A first slide groove 24 is formed between the cover plate 23 and the mounting seat 22 on both sides along the length direction thereof;

[0129] The cover plate 23 is provided with a first slide rail 21;

[0130] The bottom of the supporting column 3 is slidably connected to the first slide rail 21 .

[0131] A driving block 25 is movably mounted on the cover plate 23;

[0132] The two side portions of the driving block 25 are located in the first slide groove 24;

[0133] The bottom of the driving block 25 is located in the sliding space;

[0134] A connecting hole 251 is formed at the bottom of the driving block 25;

[0135] One end of the mounting base 22 away from the nylon tube bender is connected to a motor 26;

[0136] The motor part 26 is driven and connected with a lead screw 27;

[0137] The lead screw 27 is located in the sliding space and is adapted to be connected with the connecting hole 251;

[0138] The motor part 26 drives the lead screw 27 to rotate so that the driving block 25 moves along the mounting seat 22 to push the supporting column 3 to slide along the first slide rail 21 .

[0139] Specifically, the motor part 26 of the driving assembly 2 drives the lead screw 27 to rotate, and the connecting hole 251 of the driving block 25 is threadedly connected to the lead screw 27. The rotation of the lead screw 27 causes the driving block 25 connected thereto to reciprocate on the mounting seat 22; at the same time, a cover plate 23 is installed on the mounting seat 22, and a first slide groove 24 is provided on the cover plate 23. The support column 3 is slidably connected to the first slide rail 21. When the lead screw 27 rotates to move the driving block 25, the driving block 25 contacts and pushes the supporting column 3 to slide on the first slide rail 21; wherein, two groups of driving blocks 25 are distributed and installed on both sides of the supporting column 3, so as to drive the supporting column 3 to slide, and at the same time, can also limit the sliding route of the supporting column 3.

[0140] The first traction part 51 and the second traction part 52 have the same structure and are symmetrically distributed;

[0141] The traction part 51 comprises a first fixing plate 511, a driving gear 512, a driven gear 513, a linkage gear 514, a conveyor belt 515 and a second motor part 516;

[0142] A groove 517 is formed in the middle of the conveyor belt 515 in the length direction;

[0143] The first fixing plate 511 is fixedly mounted on the two sets of first supporting blocks 72;

[0144] A driving gear 512, a linkage gear 514 and a driven gear 513 are arranged in sequence on the first fixing plate 511;

[0145] The driving gear 512 and the driven gear 513 are distributed on both sides of the first fixing plate 511;

[0146] The linkage gear 514 is distributed between the driving gear 512 and the driven gear 513;

[0147] The conveyor belt 515 is wrapped around the driving gear 512, the linkage gear 514 and the driven gear 513;

[0148] The second motor part 516 drives the driving gear 512 to rotate so that the driven gear 513 and the linkage gear 514 rotate synchronously to realize the relative movement of the conveyor belts 515 of the first traction part 51 and the second traction part 52 and to pull the core tube.

[0149] The second traction part 52 has a second fixing plate 521 having the same structure as the first fixing plate 511;

[0150] The second fixing plate 521 is fixedly mounted on the two groups of second supporting blocks 73 .

[0151] Specifically, the traction part 1 51 and the traction part 2 52 have the same structure, the difference is that the traction part 1 51 is installed on the first support block 72 through the first fixing plate 511, and the traction part 2 52 is installed on the second support block 73 through the second fixing plate 521. The traction part 1 51 and the traction part 2 52 respectively have a first fixing plate 511, a driving gear 512, a driven gear 513, a linkage gear 514, a conveyor belt 515 and a motor part 2 516. The traction part 1 51 is described in detail. The driving gear 512, the driven gear 513, the linkage gear 514, the conveyor belt 515 and the motor part 2 516 are distributed on the upper surface of the first fixing plate 511. 513, linkage gear 514, driving gear 512 and driven gear 513 are installed on both sides of the length direction of the first fixed plate 511, multiple groups of linkage gear 514 are distributed between the driving gear 512 and the driven gear 513, and a conveyor belt 515 is installed outside all the gears. When the second motor 516 drives the driving gear 512 to start rotating, the driven gear 513 and the multiple groups of linkage gear 514 rotate synchronously, thereby realizing the rotation of the conveyor belt 515, and the transmission belt 515 of the traction upper part 51 and the traction lower part 52 moves relative to each other, so as to continuously pull the core tube;

[0152] Preferably, the conveyor belt 515 is formed with a groove 517. When the traction upper part 51 and the traction lower part 52 gradually approach and clamp the core tube, the core tube is partially embedded in the groove 517, which is convenient for clamping and fixing the core tube and is more conducive to pulling the core tube.

[0153] The positioning component 6 comprises:

[0154] A fixing block 61, the fixing block 61 is fixedly mounted on the side of the mounting plate 4;

[0155] A top plate 62 is fixedly disposed on the fixed block 61;

[0156] A second slide groove 621 is formed on the top plate 62;

[0157] A T-shaped slider 63 is slidably installed in the second slide groove 621;

[0158] The crossbeam of the T-shaped slide block 63 is embedded in the second slide groove 621;

[0159] A clamp block 64 is fixedly mounted on one side of the vertical beam of the T-shaped slider 63;

[0160] A semicircular opening 641 is formed adjacent to the two sets of clamping blocks 64;

[0161] Two adjacent groups of semicircular openings 641 form a positioning hole 65 for clamping the core tube;

[0162] The two groups of T-shaped slide blocks 63 slide along the second slide groove 621 to form a positioning hole 65 that is enlarged or reduced to loosen or clamp the core tube or clamp core tubes of different sizes.

[0163] A stop block portion 66 extends from the clamp block 64 away from the driving gear 512 toward the nylon tube bending machine;

[0164] The two sets of limit blocks 66 form a limit through hole 67 for clamping the core tube;

[0165] The T-shaped slider 63 slides along the second slide groove 621 to form a limit through hole 67 that increases or decreases to loosen or clamp the core tube or clamp core tubes of different sizes;

[0166] One end opening of the limiting through hole 67 is connected to the positioning hole 65 .

[0167] Specifically, the positioning assembly 6 is distributed on both sides of the traction upper part 51 and the traction lower part 52. The positioning assembly 6 includes a fixed block 61 installed on the side of the mounting plate 4, a top plate 62 is installed above the fixed block 61, and a second slide groove 621 is formed on the top plate 62, wherein two groups of T-shaped sliders 63 are installed in the second slide groove 621, and part of the T-shaped slider 63 is slidably connected in the second slide groove 621, and the other part is connected to the clamping block 64, and the clamping blocks 64 are symmetrically installed on the two groups of T-shaped sliders 63, and the two adjacent groups of clamping blocks 64 are provided with semicircular openings 641. When the two groups of T-shaped sliders 63 gradually approach, the two groups of semicircular openings 641 form a positioning hole 65, the two groups of T-shaped sliders 63 approach, the positioning hole 65 is reduced, the two groups of T-shaped sliders 63 move away, and the positioning hole 65 is enlarged, finally realizing the clamping and loosening of the core tube, and at the same time, it can also meet the installation of core tubes of different sizes.

[0168] The mounting plate 4 is provided with a slide bar 81 with blocked ends;

[0169] A positioning block 82 is slidably mounted on the slide bar 81;

[0170] The positioning block 82 is located on a side of the second traction part 52 away from the first traction part 51;

[0171] The second traction part 52 slides along the second support block 73 in a direction away from the first traction part 51 to drive the positioning block 82 to move synchronously.

[0172] Specifically, the slide bar 81 is arranged on the mounting plate, and is perpendicular to the positions of the traction part 1 51 and the traction part 2 52. The positioning block 82 arranged on the slide bar 81 is located on the side of the traction part 2 52 away from the traction part 1 51. When the traction part 2 52 moves in the direction away from the traction part 1 51, the traction part 2 52 gradually approaches and pushes the positioning block 82 to slide on the slide bar 81. Since both ends of the slide bar 81 are blocked, the maximum moving distance of the positioning block 82 is to the blocked end of the slide bar 81. In order to avoid excessive movement of the traction part 2 52, the positioning block 82 further limits the moving position of the traction part 2 52.

[0173] A support frame 91, wherein a connecting rod 92 is provided on the support frame 91;

[0174] One end of the connecting rod 92 away from the supporting frame 91 forms a second limit block portion 93;

[0175] The second portion 93 of the limit block is formed with a mounting hole 94;

[0176] The core tube passes through the mounting hole 94 , the positioning hole 65 , the mounting channel, and the limiting through hole 67 in sequence.

[0177] Specifically, a connecting rod 92 is provided on the support frame 91, one end of the connecting rod 92 is fixed on the support frame 91, and the other end of the connecting rod 92 has two limit blocks 93, and a mounting hole 94 is provided in the middle of the two limit blocks 93. When installing the core tube, the core tube first passes through the mounting hole 94, and then passes through the positioning hole 65, the mounting channel, and the limiting through hole 67 in sequence. The core tube is clamped by the mounting hole 94, the positioning hole 65, and the limiting through hole 67, thereby fixing the position of the core tube, avoiding the core tube from shaking and shifting during the core insertion process, and further ensuring the production quality.

[0178] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A front core-threading mechanism for a nylon tube bending machine, the mechanism being controlled by an external control console (1), the mechanism being located on the side of the nylon tube bending machine where the bending process is performed, and characterized in that: include: A driving assembly (2), wherein the driving assembly (2) has a first slide rail (21); A supporting column (3), one end of the supporting column (3) being slidably connected to the first slide rail (21), and the other end of the supporting column (3) being mounted with a mounting plate (4); A traction assembly (5), wherein the traction assembly (5) is mounted on the mounting plate (4); The traction assembly (5) comprises a traction first part (51) and a traction second part (52); An installation channel for clamping the core tube is formed between the first traction part (51) and the second traction part (52); The first traction part (51) and the second traction part (52) move relative to each other to narrow the installation channel so as to clamp the core tube; The first traction part (51) and the second traction part (52) rotate synchronously to realize continuous traction of the core tube to the nylon tube workpiece to be threaded; A positioning assembly (6), wherein the positioning assembly (6) is fixedly mounted on the mounting plate (4) and is distributed on both sides of the traction assembly (5); The core tube passes through one side of the positioning component (6) and extends through the installation channel to the other side of the positioning component (6) and then passes out.

2. The front core-threading mechanism for a nylon tube bending machine according to claim 1, characterized in that: include: An adjustment component (7), wherein the adjustment component (7) has a second slide rail (71); Two sets of the second slide rails (71) are arranged in parallel on the mounting plate (4); A first support block (72) and a second support block (73) are slidably disposed on each group of the second slide rails (71); The first support block (72) and the second support block (73) are respectively connected to an air intake pipe; One side of the traction part (51) is fixedly mounted on two groups of first support blocks (72); One side of the second traction part (52) is fixedly mounted on two sets of second support blocks (73); Compressed air is injected into the air inlet pipe to drive the first support block (72) and the second support block (73) to slide along the second slide rail (71); The first support block (72) and the second support block (73) slide along the second slide rail (71) to drive the first traction part (51) and the second traction part (52) to move synchronously; The first traction part (51) and the second traction part (52) move toward each other to form a mounting channel that gradually decreases to achieve clamping of the core tube; The first traction part (51) and the second traction part (52) move in opposite directions to form a gradually enlarged installation channel to loosen the core tube.

3. The front core-threading mechanism for a nylon tube bending machine according to claim 1, characterized in that: The driving assembly (2) comprises: A mounting seat (22), wherein the interior of the mounting seat (22) is hollow to form a sliding space; A cover plate (23), wherein the cover plate (23) is installed at an opening above the mounting seat (22); A first sliding groove (24) is formed between the two sides of the cover plate (23) along the length direction and the mounting seat (22); The cover plate (23) is provided with a first slide rail (21); The bottom of the supporting column (3) is slidably connected to the first slide rail (21).

4. The front core-threading mechanism for a nylon tube bending machine according to claim 3, characterized in that: A driving block (25) is movably mounted on the cover plate (23); The two side portions of the driving block (25) are located in the first sliding groove (24); The bottom of the driving block (25) is located in the sliding space; A connecting hole (251) is provided at the bottom of the driving block (25); An end of the mounting seat (22) away from the nylon tube bending machine is connected to a motor (26); The motor part (26) is drivingly connected to a lead screw (27); The lead screw (27) is located in the sliding space and is adaptively connected to the connecting hole (251); The motor part (26) drives the lead screw (27) to rotate so that the drive block (25) moves along the mounting seat (22) to push the support column (3) to slide along the first slide rail (21).

5. The front core-threading mechanism for a nylon tube bending machine according to claim 2, characterized in that: The first traction part (51) and the second traction part (52) have the same structure and are symmetrically distributed; The traction part (51) comprises a first fixed plate (511), a driving gear (512), a driven gear (513), a linkage gear (514), a conveyor belt (515) and two motor parts (516); A groove (517) is formed in the middle of the conveyor belt (515) in the length direction; The first fixing plate (511) is fixedly mounted on two groups of first supporting blocks (72); A driving gear (512), a linkage gear (514) and a driven gear (513) are sequentially arranged on the first fixing plate (511); The driving gear (512) and the driven gear (513) are distributed on both sides of the first fixing plate (511); The linkage gear (514) is distributed between the driving gear (512) and the driven gear (513); The conveyor belt (515) is wrapped around the driving gear (512), the linkage gear (514) and the driven gear (513); The second motor part (516) drives the driving gear (512) to rotate to form a driven gear (513), and the linkage gear (514) rotates synchronously to achieve relative movement of the conveyor belt (515) of the first traction part (51) and the second traction part (52) and to pull the core tube.

6. The front core-threading mechanism for a nylon tube bending machine according to claim 5, characterized in that: The second traction part (52) has a second fixing plate (521) having the same structure as the first fixing plate (511); The second fixing plate (521) is fixedly mounted on two groups of second supporting blocks (73).

7. The front core-threading mechanism for a nylon tube bending machine according to claim 5, characterized in that: The positioning component (6) comprises: A fixing block (61), wherein the fixing block (61) is fixedly mounted on a side of the mounting plate (4); A top plate (62) is fixedly arranged on the fixed block (61); The top plate (62) is provided with a second sliding groove (621); A T-shaped sliding block (63) is slidably installed in the second sliding groove (621); The crossbeam of the T-shaped sliding block (63) is embedded in the second sliding groove (621); A clamping block (64) is fixedly mounted on one side of the vertical beam of the T-shaped sliding block (63); A semicircular opening (641) is formed at adjacent locations of the two groups of clamping blocks (64); Two adjacent groups of semicircular openings (641) form a positioning hole (65) for clamping the core tube; The two groups of T-shaped slide blocks (63) slide along the second slide groove (621) to form a positioning hole (65) that is enlarged or reduced to loosen or clamp the core tube or clamp core tubes of different sizes.

8. The front core-threading mechanism for a nylon tube bending machine according to claim 7, characterized in that: A limit block portion (66) extends from the clamping block (64) away from the driving gear (512) toward the nylon tube bending machine; A portion (66) of the two groups of limit blocks forms a limit through hole (67) for clamping the core tube; The T-shaped slide block (63) slides along the second slide groove (621) to form a limit through hole (67) that increases or decreases to loosen or clamp the core tube or clamp core tubes of different sizes; An opening at one end of the limiting through hole (67) is connected to the positioning hole (65).

9. The front core-threading mechanism for a nylon tube bending machine according to claim 1, characterized in that: The mounting plate (4) is provided with a sliding rod (81) with blocked ends; A positioning block (82) is slidably mounted on the slide bar (81); The positioning block (82) is located on a side of the second traction part (52) away from the first traction part (51); The second traction part (52) slides along the second support block (73) in a direction away from the first traction part (51) to drive the positioning block (82) to move synchronously.

10. The front core-threading mechanism for a nylon tube bending machine according to claim 8, characterized in that: include: A support frame (91), wherein a connecting rod (92) is provided on the support frame (91); The end of the connecting rod (92) away from the supporting frame (91) forms two limiting block parts (93); The second portion (93) of the limit block is formed with a mounting hole (94); The core tube passes through the mounting hole (94), the positioning hole (65), the mounting channel, and the limiting through hole (67) in sequence.

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