A straw injection molding traction mechanism

Abstract

The present invention discloses a straw injection molding traction mechanism and a conveying system, and relates to the technical field of traction and conveying of straw production, comprising a frame, wherein a first crawler traction mechanism and a second crawler traction mechanism are arranged in the frame, a traction and conveying space is formed between the first crawler traction mechanism and the second crawler traction mechanism, and further comprising: a plurality of groups of traction and conveying components, each group of the traction and conveying components comprising two strip frames, wherein the strip frames are arranged in the traction and conveying space. In the present invention, when the first crawler traction mechanism and the second crawler traction mechanism squeeze and pull the straw, the guide conveying parts on the strip frames on both sides of the straw support both sides of the straw, limit the damage caused by excessive extrusion deformation of the straw, improve the circumferential deformation strength of the straw, and increase the pressure of compressive deformation of the straw, so that the first crawler traction mechanism and the second crawler traction mechanism can increase the pressure between the straw and the second crawler traction mechanism to meet the friction traction and conveying requirements, thereby improving the accuracy of traction and conveying.

Description

Technical Field

[0001] The invention relates to the technical field of straw production traction and conveying, in particular to a straw injection molding traction mechanism. Background Art

[0002] It is well known that the process of straw production is as follows: after melting plastic or degradable material (such as corn starch), straws are produced through blow molding. The blow-molded straws pass through a cooling trough containing circulating cooling water to cool the blow-molded straws. The cooled straws are towed by a traction device and then transported to a cutting device, where they are finally cut into sections by the cutting device and then packed and transported to a packaging workshop for packaging. The straw injection molding traction mechanism is a device for towing and transporting the injection-molded straws.

[0003] For example, the Chinese patent with the authorization announcement CN206663755U and the authorization announcement date November 24, 2017, and the name of the patent is "A Straw Traction Adjustment Mechanism", has a specific structure of a traction adjustment mechanism, wherein the main wheel group includes a first driving wheel, a second driving wheel, a first main shaft rod and a second main shaft rod, and the secondary wheel group includes a first secondary driven wheel, a second secondary driven wheel, a first secondary shaft rod and a second secondary shaft rod, the second driving wheel is arranged below the first driving wheel, and the second secondary driven wheel is arranged below the first secondary driven wheel, the first driving wheel and the first secondary driven wheel are connected with a first transmission belt, the second driving wheel and the second secondary driven wheel are connected with a second transmission belt, and a spacing suitable for frictional traction of the cooled straw is provided between the first transmission belt and the second transmission belt, the first adjustment device is used to adjust the up and down movement of the first main shaft rod, and the second adjustment device is used to adjust the up and down movement of the first secondary shaft rod.

[0004] Similar to the above-mentioned application, the prior art forms a conveying space between two synchronously moving transmission belts when pulling and conveying straws. The straws are placed between the two transmission belts, and the conveying method is to achieve frictional traction and conveying through the pressure of the two transmission belts on the straws. However, during traction and conveying, the pressure between the two transmission belts and the straws cannot be accurately controlled. That is, when the pressure is too low, the traction and conveying straws will slip and idle, affecting the conveying accuracy. When the pressure is too high, the straws will be deformed and damaged, affecting the quality of the produced straws. Summary of the invention

[0005] The object of the present invention is to provide a straw injection molding traction mechanism to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a straw injection molding traction mechanism, comprising a frame, in which a first crawler traction mechanism and a second crawler traction mechanism are arranged, a traction and conveying space is formed between the first crawler traction mechanism and the second crawler traction mechanism, and the straw is placed in the traction and conveying space, and also includes: multiple groups of traction and conveying components, each group of the traction and conveying components includes two strip frames, the strip frames are arranged in the traction and conveying space, and multiple guide conveying parts are rotatably arranged on the strip frames, and the guide conveying parts are in contact with the circumference of the straws.

[0007] As a further description of the above technical solution: each of the guide conveying parts is connected to the second crawler traction mechanism through a transmission assembly. When the second crawler traction mechanism pulls the straw for transportation, the transmission assembly synchronously drives each of the guide conveying parts to synchronously drive the straw for transportation.

[0008] As a further description of the above technical solution: the second crawler traction mechanism includes two second conveying rollers rotatably arranged on the frame, and a second traction crawler is sleeved between the two second conveying rollers, and a plurality of strip belts for cooperating with the straw traction are arranged on the surface of the second traction crawler.

[0009] As a further description of the above technical solution: the guide conveying part includes a rotating shaft, which is vertically rotatably arranged on the strip frame, and arc-shaped guide wheels adapted to the straws are symmetrically connected to both ends of the rotating shaft.

[0010] As a further description of the above technical solution: the length of the guide conveying portion is smaller than the diameter of the straw.

[0011] As a further description of the above technical solution: the transmission assembly includes a rubber strip and an adjusting wheel, the rubber strip is integrally formed on both sides of the strip belt, the adjusting wheel is fixed on the end face of the arc guide wheel, and the adjusting wheel and the circumferential surface of the rubber strip are in contact with each other.

[0012] As a further description of the above technical solution: a combined adjustment frame is fixed to the end of the frame, each of the traction and conveying components is installed in the traction and conveying space through the combined adjustment frame, and the combined adjustment frame is used to drive the two strip frames in the traction and conveying components to move toward or in the opposite direction.

[0013] As a further description of the above technical solution: the strip belt is fixed to the surface of the second traction crawler through an elastic rubber pad, and the second traction crawler is provided with adjustment components on both sides of the strip belt to support the strip belt, and the adjustment components are transmission connected to the traction conveying component, when the two strip frames in the traction conveying component move in opposite directions, the adjustment components synchronously drive the strip belt to fit the surface of the second traction crawler to release the traction and conveying of the straw.

[0014] As a further description of the above technical solution: the first crawler traction mechanism includes two first conveying rollers, and the two first conveying rollers are arranged on the inner side of the frame in a lifting and rotating manner, a first traction crawler is sleeved between the first conveying rollers, and a lifting mechanism is fixed on the top of the frame, the lifting mechanism is connected to the first crawler traction mechanism and drives the first crawler traction mechanism to lift and adjust.

[0015] A conveying system comprises the above-mentioned straw injection molding traction mechanism.

[0016] In the above technical scheme, the present invention provides a straw injection molding traction mechanism, which realizes that when the first crawler traction mechanism and the second crawler traction mechanism rotate toward each other synchronously, the first crawler traction mechanism and the second crawler traction mechanism squeeze and pull the straws when the straws are placed in the traction and conveying space formed therebetween are conveyed. At this time, the guide conveying parts on the strip frames on both sides of the straws support both sides of the straws, limit the damage caused by excessive extrusion deformation of the straws, and at the same time improve the circumferential deformation strength of the straws, increase the pressure of compressive deformation of the straws, so that the first crawler traction mechanism and the second crawler traction mechanism can increase the pressure between the straws to meet the friction traction and conveying requirements, improve the accuracy of traction and conveying, and avoid slipping of the straws due to too little pressure, and deformation and damage of the straws due to too much pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure of a straw injection molding traction mechanism provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the end surface structure of a straw injection molding traction mechanism provided by an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the disassembled structure of a straw injection molding traction mechanism provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the side structure of a straw injection molding traction mechanism provided by an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the assembly structure of the traction conveying assembly and the suction tube provided in an embodiment of the present invention;

[0023] Figure 6A schematic diagram of the structure of a traction conveying assembly provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the structure of a combined adjustment frame provided in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the structure of a guide conveying unit provided in an embodiment of the present invention;

[0026] Fig. 9 A schematic structural diagram of a first crawler traction mechanism provided in an embodiment of the present invention;

[0027] Fig.10 A schematic structural diagram of a second crawler traction mechanism provided in an embodiment of the present invention;

[0028] Fig.11 A schematic diagram of the connection structure between the adjustment component and the traction conveying component provided in an embodiment of the present invention;

[0029] Fig.12 A schematic diagram of the structure of an adjustment component provided in an embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Frame; 11. Strip opening; 2. First crawler traction mechanism; 21. First conveying roller; 22. First traction crawler; 23. Slide; 3. Second crawler traction mechanism; 31. Second conveying roller; 32. Second traction crawler; 33. Strip belt; 34. Rubber strip; 4. Lifting mechanism; 41. Connecting frame; 42. Adjusting screw rod; 43. U-shaped fixing frame; 5. Traction conveying assembly; 51. Strip frame; 52. Guide conveying part; 521. Rotating shaft; 522. Arc guide wheel; 523. Adjusting wheel; 6. Combined adjusting frame; 61. Horizontal frame; 62. Light rod; 63. L-shaped gear frame; 64. Adjusting gear; 65. Adjusting handle; 7. Straw; 8. Adjusting assembly; 81. Strip groove; 82. Rubber belt; 83. Support side frame; 84. Elastic member; 85. Guide rail groove; 86. Guide adjusting rod. DETAILED DESCRIPTION

[0032] 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 with reference to the accompanying drawings.

[0033] See also Figure 1-12The embodiment of the present invention provides a technical solution: a straw injection molding traction mechanism, which is used to traction and convey the injection-molded straws, including a frame 1, the frame 1 is composed of two vertical parallel steel plates, and the frame 1 is provided with a first crawler traction mechanism 2 and a second crawler traction mechanism 3, the first crawler traction mechanism 2 and the second crawler traction mechanism 3 are both arranged in parallel between the two steel plates, and the first crawler traction mechanism 2 is located above the second crawler traction mechanism 3, and the positions of the two correspond to each other up and down, and a traction and conveying space is formed between the first crawler traction mechanism 2 and the second crawler traction mechanism 3, and the traction and conveying space is used to traction and convey the straws 7, and the straws 7 are placed on the traction mechanism 2. The guide conveying space is provided, and the first crawler traction mechanism 2 and the second crawler traction mechanism 3 are synchronously rotated toward each other to convey the straw 7 placed therebetween. The guide conveying space also includes: a plurality of traction conveying components 5, each traction conveying component 5 includes two strip frames 51, the strip frames 51 are arranged in the traction conveying space, and the two strip frames 51 are located on both sides of the straw 7, a plurality of guide conveying parts 52 are rotatably arranged on the strip frames 51, the plurality of guide conveying parts 52 are distributed in a linear array, and the guide conveying parts 52 are fitted with the circumference of the straw 7, that is, the guide conveying parts 52 on the two strip frames 51 located on both sides of the straw 7 are respectively rotated and fitted with both sides of the straw 7 along the length direction. The present embodiment provides a straw injection molding traction mechanism, which realizes that when the first crawler traction mechanism 2 and the second crawler traction mechanism 3 rotate toward each other synchronously, the first crawler traction mechanism 2 and the second crawler traction mechanism 3 squeeze the straw 7 when conveying the straw 7 placed in the traction and conveying space formed therebetween. At this time, the guide conveying parts 52 on the strip frame 51 on both sides of the straw 7 support both sides of the straw 7, limit the damage caused by excessive extrusion deformation of the straw 7, and at the same time improve the circumferential deformation strength of the straw 7, increase the pressure of the compressive deformation of the straw 7, so that the first crawler traction mechanism 2 and the second crawler traction mechanism 3 can increase the pressure between them and the straw 7 to meet the friction traction and conveying requirements, improve the accuracy of traction and conveying, and avoid the slipping of the straw 7 caused by too little pressure and the deformation and damage of the straw 7 caused by too much pressure.

[0034] In another embodiment provided by the present invention, further, each guide conveying part 52 is connected to the second crawler traction mechanism 3 through a transmission assembly. When the second crawler traction mechanism 3 pulls the suction tube 7 for transportation, the transmission assembly synchronously drives each guide conveying part 52 to synchronously drive the suction tube 7 for transportation. When the first crawler traction mechanism 2 and the second crawler traction mechanism 3 rotate toward each other synchronously to convey the straw 7 in the traction and conveying space formed therebetween, the second crawler traction mechanism 3 synchronously drives the transmission assembly, and the transmission assembly receives the power of the second crawler traction mechanism 3, driving the two groups of guide conveying parts 52 on the strip frames 51 on both sides of the straw 7 to rotate toward each other synchronously to convey the straw 7, so that the first crawler traction mechanism 2 and the second crawler traction mechanism 3 squeeze the straw 7 for friction conveying, while the two sides of the compressed straw 7 are in contact with the guide conveying parts 52 on the strip frames 51, and at this time, the guide conveying parts 52 keep rotating synchronously to drive the straw 7 for conveying, thereby realizing dual-mode synchronous traction and conveying of the straw 7, and improving the transportation stability of the straw 7 without increasing the pressure on the straw 7, and preventing the straw 7 from slipping during transportation.

[0035] In another embodiment provided by the present invention, preferably, the second crawler traction mechanism 3 includes two second conveying rollers 31 rotatably arranged on the frame 1, the heights of the two second conveying rollers 31 and the distance between the two second conveying rollers 31 are equal, and a second traction crawler 32 is sleeved between the two second conveying rollers 31, that is, the second traction crawler 32 sleeved thereon is driven to rotate by the two second conveying rollers 31, and the surface of the second traction crawler 32 is provided with a plurality of strips 33 for traction and abutment with the straw 7. That is, the surface of the strip 33 protrudes from the surface of the second traction crawler 32, and at this time, the first crawler traction mechanism 2 and the second crawler traction mechanism 3 synchronously rotate in opposite directions to realize the conveyance of the straw 7 placed therebetween, specifically, the second traction crawler 32 is driven to rotate by the two second conveying rollers 31 in the second crawler traction mechanism 3, and the second traction crawler 32 drives the strip 33 thereon to keep synchronous rotation, and the straw 7 is squeezed and frictionally conveyed by the cooperation between the strip 33 and the first crawler traction mechanism 2.

[0036] In another embodiment provided by the present invention, preferably, the guide conveying part 52 comprises a rotating shaft 521, which is vertically rotatably arranged on the strip frame 51, and arc-shaped guide wheels 522 adapted to the straw 7 are symmetrically connected at both ends of the rotating shaft 521, and the length of the guide conveying part 52 is smaller than the diameter of the straw 7. Figure 2As shown in the figure, the length of the guide conveying portion 52 is smaller than the length of the straw 7, so that the first crawler traction mechanism 2 and the second crawler traction mechanism 3 can realize extrusion and friction conveying of the straw 7, so that the straw 7 is in surface contact with the first crawler traction mechanism 2 and the second crawler traction mechanism 3, further improving the conveying stability of the straw injection molding traction mechanism.

[0037] In another embodiment provided by the present invention, preferably, the transmission assembly includes two rubber strips 34 and an adjusting wheel 523, the two rubber strips 34 are integrally formed on both sides of the strip belt 33, and the adjusting wheel 523 is fixed on the end face of the arc guide wheel 522. Specifically, the adjusting wheel 523 is fixed at the center position of the end face of the arc guide wheel 522 located at the bottom, and the adjusting wheel 523 and the circumferential surface of the rubber strip 34 are in contact with each other. That is, when the second crawler traction mechanism 3 cooperates with the first crawler traction mechanism 2 to realize the extrusion and friction conveying of the straw 7, the second crawler traction mechanism 3 synchronously drives the transmission assembly, and the transmission assembly receives the power of the second crawler traction mechanism 3, and drives the two groups of guide conveying parts 52 on the strip frames 51 on both sides of the straw 7 to rotate synchronously in opposite directions to convey the straw 7. Specifically, when the second traction crawler 32 in the second crawler traction mechanism 3 rotates, it synchronously drives the strip belt 33 thereon and the rubber strips 34 on both sides to rotate synchronously, and the rubber strips 34 abut against the circumference of the adjusting wheel 523 to drive the adjusting wheel 523 to rotate, and finally drives the arc guide wheel 522 to rotate through the adjusting wheel 523, so as to realize the auxiliary conveying of the straw 7 through the rotation of the arc guide wheel 522. The two methods are realized to respectively carry out traction and conveying from two opposite sides of the straw 7.

[0038] In another embodiment provided by the present invention, optionally, the transmission assembly includes two chains and a sprocket, the two chains are arranged on both sides of the strip belt 33, the sprocket is fixed on the end face of the arc guide wheel 522, and the sprocket is meshed with the chain. When the second traction crawler 32 in the second crawler traction mechanism 3 rotates, it synchronously drives the strip belt 33 thereon and the chains on both sides to rotate synchronously, the chain is meshed with the circumferential surface of the sprocket to drive the adjusting wheel 523 to rotate, and finally the arc guide wheel 522 is driven to rotate by the adjusting wheel 523, thereby realizing auxiliary transportation of the straw 7 through the rotation of the arc guide wheel 522.

[0039] In another embodiment provided by the present invention, preferably, a combined adjustment frame 6 is fixed at the end of the frame 1, each traction conveying assembly 5 is installed in the traction conveying space through the combined adjustment frame 6, and the combined adjustment frame 6 is used to drive the two strip frames 51 in the traction conveying assembly 5 to move toward or in the opposite direction. Specifically, (such as Figure 7The combined adjustment frame 6 includes a cross frame 61, which is detachably mounted on the end of the frame 1. Two light rods 62 are fixed on the surface of the cross frame 61, and a plurality of groups of L-shaped gear racks 63 are relatively slidably arranged on the two light rods 62. Each group of L-shaped gear racks 63 includes two opposite L-shaped gear racks 63, wherein one L-shaped gear rack 63 is slidably sleeved on one light rod 62, and the other L-shaped gear rack 63 is slidably sleeved on the other light rod 62, so that the two opposite L-shaped gear racks 63 are staggered up and down, and the bottom ends of the vertical sections of the two opposite L-shaped gear racks 63 are connected to the ends of the two strip racks 51 in the traction conveying assembly 5, and the upper end of the cross frame 61 is connected to the upper end of the strip rack 51. An adjusting gear 64 is rotatably arranged between the horizontal ends of each opposite L-shaped gear rack 63, and the adjusting gear 64 is respectively meshed with the horizontal ends of the two opposite L-shaped gear racks 63, and an adjusting handle 65 is connected to the outer side of the adjusting gear 64. When in use, the adjusting gear 64 is driven to rotate by rotating the adjusting handle 65, and the adjusting gear 64 can drive the two L-shaped gear racks 63 to move toward or in the opposite direction on the two light rods 62, and finally drive the two strip racks 51 to move toward or in the opposite direction through the two L-shaped gear racks 63, so that the two strip racks 51 in the traction conveying assembly 5 can be adjusted according to actual needs, which is more convenient to use.

[0040] In another embodiment provided by the present invention, preferably, the strip belt 33 is fixed to the surface of the second traction crawler 32 by an elastic rubber pad, and the elastic rubber pad allows the strip belt 33 to be raised and lowered on the surface of the second traction crawler 32. Adjustment components 8 for supporting the strip belt 33 are arranged on both sides of the second traction crawler 32, and the adjustment components 8 are transmission-connected to the traction conveying component 5. The adjustment components 8 include two strip grooves 81 symmetrically arranged on the surface of the second traction crawler 32 with respect to the strip belt 33, and a rubber belt 82 is interactively embedded in the strip groove 81. A plurality of support side frames 83 are equidistantly connected to the rubber belt 82 for rotation, and the support side frames 83 are The other end is rotatably connected to the bottom of the strip belt 33, and a plurality of elastic members 84 are equidistantly connected between one side of the rubber belt 82 and the strip groove 81. The elastic member 84 is a rubber spring, and the elastic force of the elastic member 84 is used to drive the rubber belt 82 to slide toward one side of the strip belt 33. A guide groove 85 is provided on the surface of the rubber belt 82. A plurality of guide adjustment rods 86 are vertically connected to the bottom of the strip frame 51 in the traction and conveying assembly 5, and the guide adjustment rods 86 are slidably embedded in the guide groove 85. When the two strip frames 51 in the traction and conveying assembly 5 move in opposite directions, the adjustment assembly 8 synchronously drives the strip belt 33 to fit the surface of the second traction crawler 32 to release the traction and conveying of the straw 7.

[0041] The straw injection molding traction mechanism is provided with multiple traction and conveying components 5 between the first crawler traction mechanism 2 and the second crawler traction mechanism 3, so that the first crawler traction mechanism 2 and the second crawler traction mechanism 3 cooperate with the multiple traction and conveying components 5 to synchronously convey multiple straws 7.

[0042] At the same time, in actual use, when one of the multiple straws 7 fails in other processes on the conveying path (such as the cutting process) and needs to stop conveying, stopping at this time will cause it and the straw 7 to be unable to be conveyed normally, and at the same time, it will cause the other processes of the straw 7 that can be conveyed normally to be unable to maintain stable progress, affecting work efficiency. The straw injection molding traction mechanism drives the adjusting gear 64 to rotate by rotating the adjusting handle 65, and the adjusting gear 64 can drive the two L-shaped gear racks 63 to move in the opposite direction on the two light rods 62, and finally drive the two strip racks 51 to move in the opposite direction through the two L-shaped gear racks 63 to make the strip racks 51 move in the opposite direction. The guide conveying part 52 on the frame 51 is separated from the straw 7, and at the same time, the two strip frames 51 move in the opposite direction, and the guide adjustment rod 86 cooperates with the guide groove 85 to drive the rubber belt 82 to slide away from the strip belt 33. At this time, the rubber belt 82 drives the strip belt 33 to fit the surface of the second traction crawler 32 through the supporting side frame 83, so that the strip belt 33 cannot cooperate with the first crawler traction mechanism 2 to squeeze and convey the straw 7, that is, the traction and conveying of the straw 7 is released, and the two traction and conveying actions of a single straw 7 are released synchronously, and the normal traction and conveying of other straws 7 are not affected. The flexibility of the straw injection traction mechanism is significantly improved.

[0043] In another embodiment provided by the present invention, the first crawler traction mechanism 2 includes two first conveying rollers 21, and the two first conveying rollers 21 are arranged on the inner side of the frame 1 in a lifting and rotating manner, and a first traction crawler 22 is sleeved between the first conveying rollers 21. A lifting mechanism 4 is fixed on the top of the frame 1, and the lifting mechanism 4 is connected to the first crawler traction mechanism 2 and drives the first crawler traction mechanism 2 to lift and adjust. Specifically, strip openings 11 are provided on both sides of the frame 1, and slide seats 23 are rotatably connected at both ends of the first conveying roller 21. The slide seats 23 are slidably embedded in the strip openings 11. The lifting mechanism 4 includes a connecting frame 41 fixed on the top of the frame 1, and an adjusting screw rod 42 is threadedly connected to the connecting frame 41, and the bottom end of the adjusting screw rod 42 is rotatably connected to a U-shaped fixing frame 43. The U-shaped fixing frame 43 is connected to the slide seats 23 at both ends of the first conveying roller 21, and a hand wheel is fixed to the top of the adjusting screw rod 42. When in use, the adjusting screw rod 42 is driven to rotate by the hand wheel, so that the U-shaped fixing frame 43 is driven to rise and fall by the adjusting screw rod 42 and the connecting frame 41, and finally the first conveying roller 21 is driven to rise and fall by the U-shaped fixing frame 43, so as to finally realize the lifting and falling adjustment of the first crawler traction mechanism 2.

[0044] In another embodiment provided by the present invention, further, a driving mechanism is further provided on the outer side of the frame 1, and the driving mechanism is used to drive the first conveying roller 21 in the first crawler traction mechanism 2 and the second conveying roller 31 in the second crawler traction mechanism 3 to rotate. The driving mechanism includes two motors, one motor is connected to the first conveying roller 21 through a coupling, and the other motor is connected to the second conveying roller 31 through a coupling.

[0045] A conveying system comprises the above-mentioned straw injection molding traction mechanism. Furthermore, a cooling trough is arranged at the inlet end of the straw injection molding traction mechanism. There is circulating cooling water in the cooling trough. The cooling water is used to cool and mold the straws. A drying device is arranged at one end of the cooling trough close to the straw blocking traction mechanism. The drying device is used to dry the cooled and molded straws. A cutting device is arranged at the outlet end of the straw injection molding traction mechanism. The cutting device is used to cut and mold the straws to a fixed length. That is, the injection molded straws cooperate with the straw injection molding traction mechanism to pass through the cooling trough for cooling and molding, and are transported to the cutting device for fixed-length cutting and molding, so as to complete the production traction and conveying of the straws.

[0046] The above description is only by way of illustration of certain exemplary embodiments of the present invention. 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 straw injection molding traction mechanism, comprising a frame (1), wherein a first crawler traction mechanism (2) and a second crawler traction mechanism (3) are arranged in the frame (1), a traction conveying space is formed between the first crawler traction mechanism (2) and the second crawler traction mechanism (3), and the straw (7) is placed in the traction conveying space, characterized in that: Also includes: A plurality of groups of traction and conveying assemblies (5), each group of the traction and conveying assemblies (5) comprising two strip frames (51), the strip frames (51) being arranged in the traction and conveying space, a plurality of guide conveying parts (52) being rotatably arranged on the strip frames (51), and the guide conveying parts (52) being in contact with the circumference of the straw (7); The second crawler traction mechanism (3) comprises two second conveying rollers (31) rotatably mounted on the frame (1), a second traction crawler (32) being sleeved between the two second conveying rollers (31), and a plurality of strip belts (33) for traction and abutment with the suction tube (7) being arranged on the surface of the second traction crawler (32); A combined adjustment frame (6) is fixed to the end of the frame (1), and each of the traction conveying assemblies (5) is installed in the traction conveying space via the combined adjustment frame (6), and the combined adjustment frame (6) is used to drive the two strip frames (51) in the traction conveying assemblies (5) to move towards or in opposite directions; The strip belt (33) is fixed to the surface of the second traction crawler (32) via an elastic rubber pad. Adjustment components (8) for supporting the strip belt (33) are provided on both sides of the second traction crawler (32). The adjustment components (8) are transmission-connected to the traction conveying component (5). When the two strip frames (51) in the traction conveying component (5) move in opposite directions, the adjustment components (8) synchronously drive the strip belt (33) to fit the surface of the second traction crawler (32) so as to release the traction conveying of the straw (7).

2. A straw injection molding traction mechanism according to claim 1, characterized in that: Each of the guide conveying parts (52) is connected to the second crawler traction mechanism (3) through a transmission assembly, and when the second crawler traction mechanism (3) tows the suction tube (7) for transportation, the transmission assembly synchronously drives each of the guide conveying parts (52) to synchronously drive the suction tube (7) for transportation.

3. A straw injection molding traction mechanism according to claim 2, characterized in that: The guide conveying portion (52) comprises a rotating shaft (521), the rotating shaft (521) being vertically rotatably arranged on the strip frame (51), and arc-shaped guide wheels (522) adapted to the straw (7) being symmetrically connected to both ends of the rotating shaft (521).

4. A straw injection molding traction mechanism according to claim 3, characterized in that: The length of the guide conveying portion (52) is smaller than the diameter of the suction tube (7).

5. The straw injection molding traction mechanism according to claim 3, characterized in that: The transmission assembly comprises a rubber strip (34) and an adjusting wheel (523); the rubber strip (34) is integrally formed on both sides of the strip belt (33); the adjusting wheel (523) is fixed to the end surface of the arc-shaped guide wheel (522); and the circumferential surfaces of the adjusting wheel (523) and the rubber strip (34) are in contact with each other.

6. A straw injection molding traction mechanism according to claim 1, characterized in that: The first crawler traction mechanism (2) comprises two first conveying rollers (21), and the two first conveying rollers (21) are arranged on the inner side of the frame (1) in a lifting and rotating manner, and a first traction crawler (22) is sleeved between the first conveying rollers (21). A lifting mechanism (4) is fixed on the top of the frame (1), and the lifting mechanism (4) is connected to the first crawler traction mechanism (2) and drives the first crawler traction mechanism (2) to lift and lower.

7. A conveying system, characterized in that: It comprises the straw injection molding traction mechanism as described in any one of claims 1 to 6.

Images