Glass fiber precursor chopping machine

Abstract

The invention relates to the technical field of glass fiber processing, in particular to a glass fiber precursor chopping machine which comprises a support, a conveying belt, a pressing shaft, a shell, a mixing agent spray head, a sliding block and a chopping knife, the conveying belt is mounted on the support, the pressing shaft is mounted above the conveying belt and connected with the support, the shell is mounted above the conveying belt and connected with the support, and the mixing agent spray head is connected with the sliding block. A mixing agent spray head is arranged in the shell, a motor, a driving assembly and a uniform laying assembly are arranged on the support, a sliding groove is formed in the support, a sliding block is installed in the sliding groove in a sliding mode and connected with a short cutter, the short cutter is attached to a feeding port, the driving assembly is hinged to the sliding block, and the driving assembly is connected with the motor. According to the glass fiber cutting device, glass fibers are cut through the short cutter, the glass fibers are uniformly laid on the conveying belt through the uniform laying assembly to be fused with a mixing agent, and the glass fibers are ground and formed, so that the production and processing cost of the glass fibers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber processing, in particular to a glass fiber raw yarn chopping machine. Background Art

[0002] As an inorganic non-metallic material with excellent performance, glass fiber has many excellent properties, such as insulation, heat resistance, corrosion resistance, high mechanical strength, etc. It is widely used in chemical anti-corrosion pipelines, automobile interior, shipbuilding, construction industry, etc. Glass fiber chopped is usually produced by the cooperation of a pressure roller and a short cutting knife roller. The glass fiber is cut by pressure. During the production process, the short cutting knife is very likely to cut a groove on the pressure roller. At the same time, the short cutting knife will also wear, resulting in the short cutting knife being unable to effectively cut the glass fiber. At this time, new short cutting knives and pressure rollers need to be replaced, which increases production costs.

[0003] In view of the above problems, the prior art provides a solution. For example, the patent application number is CN201810287954.3, which provides a glass fiber short cutting device. The invention patent provides a solution, including a feed roller, a guide roller, a driven guide roller, a forward cutter, a reverse cutter and a servo motor. The feed roller is connected to the servo motor, and the guide rollers are respectively arranged adjacent to the driven guide rollers and the guide rollers. The forward cutter and the reverse cutter are respectively located on both sides of the guide roller. The forward cutter includes a forward rotating central shaft and a forward cutting blade fixed on the periphery of the forward rotating central shaft. The reverse cutter includes a reverse rotating central shaft and a reverse cutting blade fixed on the periphery of the reverse rotating central shaft. The invention is used in the production of short chopped glass fibers. Maintenance can avoid direct contact between the cutting edge of the short cutter and other equipment, increase the service life of the short cutter, and reduce the production cost of glass fiber short cut. However, in the actual production process, glass fiber is often made into short chopped mat for the convenience of later transportation and production. The production process of glass fiber chopped mat is to first chop the glass fiber, then move it to the opener for opening, and then comb the fiber through a combing machine, and send the combed fiber to the laying machine to lay the net according to the set thickness and density. During the laying process, the fiber must be evenly distributed, and then the mixture is sprayed, heated to fuse the mixture with the fiber, and then roller-formed. In the existing technology, the production line is long, the installation is limited, and a variety of mechanical equipment is required, which makes the equipment investment cost high. Summary of the invention

[0004] The object of the present invention is to provide a glass fiber raw yarn short cutting machine to solve the problems of long production line, limited installation, need for coordination of multiple mechanical equipments and high equipment investment cost in glass fiber production and processing.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A glass fiber raw yarn short cutting machine includes a bracket, a conveyor belt, a pressure shaft, a shell, a mixture nozzle, a feed port, a motor, a slider, and a short cutting knife. The conveyor belt is horizontally installed on the bracket, the pressure shaft is installed above the conveyor belt, the pressure shaft is movably connected to the bracket, the shell is installed above the conveyor belt, the shell is connected to the bracket, a mixture nozzle is arranged in the shell, the feed port is connected to the upper side of the shell, and the motor is installed on the bracket.

[0007] Specifically, a driving component and an evenly spreading component are installed on the bracket, and a slide groove is vertically symmetrically opened on the bracket, a slider is slidably installed in the slide groove, the slider is connected to the short chopper, the short chopper is vertically arranged, the short chopper is in contact with the feed port, the driving component is hinged to the slider, and the driving component is connected to the motor. The driving component is used to rotate the motor to drive the slider so that the short chopper slides in the vertical direction, and the evenly spreading component is used to rotate the motor so that the cut materials are evenly distributed on the conveyor belt.

[0008] It is easy to understand that when the glass fiber is to be chopped, the glass fiber is put in from the feed port. At this time, the motor runs, driving the drive component connected to it. The drive component rotates the motor to drive the slider to slide up and down in the slide slot, and the short cutter is driven to slide up and down by the slider. When the short cutter passes the feed port, the short cutter and the feed port move relative to each other, thereby cutting the glass fiber. The cut glass fiber falls on the evenly spread component in the box. Under the action of the evenly spread component, the cut glass fiber is evenly distributed on the conveyor belt. The conveyor belt drives the glass fiber forward to the bottom of the mixture nozzle. At this time, the mixture nozzle sprays out the heated mixture, and the mixture penetrates into the gaps between the glass fibers. With the operation of the conveyor belt, the glass fiber comes under the pressing shaft. Under the action of gravity, the glass fiber is squeezed and shaped. The glass fiber is cut and evenly spread by the short cutter and the evenly spread component, and mixed with the mixture and rolled into shape under the drive of the conveyor belt, thereby reducing the problems of long production lines, limited installation, and the need for cooperation of multiple mechanical equipment, which makes the equipment investment cost high.

[0009] Preferably, the evenly spread component includes a No. 1 bevel gear, a rotating rod, a No. 2 bevel gear, a No. 3 bevel gear, a support frame, a support rod, a gear, a belt, a No. 4 bevel gear, a tooth tube and a tooth block, the motor is equipped with a No. 1 bevel gear, the bracket is rotatably equipped with a rotating rod, two ends of the rotating rod are respectively connected to the No. 2 bevel gear and the No. 3 bevel gear, the support frame is slidably installed in the slide groove, a plurality of support rods are horizontally arranged in the shell body, and the two ends of the support rod are rotatably connected to the support frame, the support rod has two groups, the number of support rods in each group is 2, and the support rods in the same group are arranged horizontally, and the two groups of support rods are arranged in the vertical direction, the support rod includes an active rod and a driven rod, a No. 4 bevel gear is provided on one side of the active rod, the support rod is coaxially equipped with a tooth tube, and tooth blocks are evenly distributed on the tooth tube, the tooth tubes on each group of the support rods are meshed with each other through a tooth ring, and the two groups of tooth tubes are connected vertically by belts, the No. 1 bevel gear is meshed with the No. 2 bevel gear, and the No. 3 bevel gear is meshed with the No. 4 bevel gear.

[0010] After the glass fiber is cut, it needs to be transferred to the opening machine for opening and combing, which requires investment in equipment and personnel. At the same time, the installation of multiple equipment makes the production line longer, which increases the production cost. Therefore, a No. 1 bevel gear is designed and installed on the motor. The motor drives the No. 1 bevel gear to rotate, and the No. 1 bevel gear drives the No. 2 bevel gear meshing with it to rotate. The No. 2 bevel gear drives the rotating rod to rotate, and the rotating rod drives the No. 3 bevel gear to rotate. The No. 3 bevel gear drives the No. 4 bevel gear meshing with it to rotate. The support rod includes an active rod and a driven rod. The No. 4 bevel gear is installed on the active rod. The No. 4 bevel gear drives the active rod to rotate. The active rod drives the No. 4 bevel gear through the gear. The driven rod meshing with it horizontally rotates, and the active rod drives the driven rod in the longitudinal direction to rotate through the belt, thereby realizing the synchronous rotation of multiple support rods. At the same time, the support rod drives the tooth tube installed coaxially with it to rotate, and the tooth tube drives the tooth block to rotate. When the cut glass fiber falls on the tooth tube and the tooth block, the glass fiber is broken up by the rotation of the tooth tube. The tooth tube is driven by the motor to rotate, and the tooth tube drives the tooth block to break up the glass fiber and make it evenly distributed, so that the subsequent mixture can be mixed with the glass fiber, avoiding the need to transfer the glass fiber to the opener for opening after cutting. The investment in equipment and personnel shortens the length of the production line and reduces production costs.

[0011] Preferably, the driving assembly includes a flywheel, a through pipe, a push rod No. 1 and a rocker, the motor is connected to the flywheel axis, one side of the support frame is connected to the through pipe, the through pipe has a guide groove No. 1 in the vertical direction, the slider is connected to the push rod No. 1, the push rod No. 1 is slidably installed in the through pipe, the outer ring of the flywheel is hinged to one end of the rocker, the other end of the rocker is hinged to the push rod No. 1 through the guide groove No. 1, and the short cutting knife is provided with cutting edges at both the upper and lower ends.

[0012] During the process of cutting glass fiber, the single blade of the short chopper will wear out, and replacing the short chopper will increase production costs. Therefore, a flywheel is designed to be connected to the motor. The rotation of the motor drives the flywheel to rotate, and the rotation of the flywheel drives the rocker to move. The rocker drives the No. 1 push rod to slide in the through pipe. Under the action of the No. 1 guide groove, the No. 1 push rod slides axially on the through pipe, and the No. 1 push rod pushes the slider to slide in the slide groove, and the slider drives the short chopper to slide up and down. The design of having blades at both ends of the short chopper allows the short chopper to move relative to the feed port, so that the glass fiber at the feed port can be cut during the up and down movement, avoiding the wear of the short chopper due to frequent shearing on the single blade, reducing the replacement of the short chopper, and thus reducing production costs.

[0013] Preferably, a contact surface is provided on the side of the flywheel, and the contact surface includes an ascending section surface and a descending section surface, the ascending section surface is an arc surface with increasing radius, the descending section surface is coplanar with the axis of the flywheel, and the descending section surface is connected with the highest point and the lowest point of the ascending section, one end of the through pipe is connected to a No. 2 push rod, a No. 2 guide groove is vertically opened on the rotating rod, a rotating shaft sleeve is rotatably installed on the support frame, the No. 3 bevel gear is rotatably connected to the rotating rod, a limit block is provided in the rotating shaft sleeve, the top end of the rotating shaft sleeve is connected to the No. 3 bevel gear, the limit block is slidably installed in the No. 2 guide groove, and the flywheel fits with the bottom end of the No. 2 push rod.

[0014] When the cut glass fibers are evenly distributed, the glass fibers will be entangled on the tooth tubes. As they continue to accumulate, the subsequent glass fibers cannot be evenly distributed, and manual cleaning is required at this time, which not only increases the labor cost. Therefore, an ascending section and a descending section are designed on the side of the flywheel. When the flywheel rotates, due to the change in the radial radius of the flywheel, the ascending section pushes the No. 2 push rod that is out of contact with it to rise, and the No. 2 push rod drives the through tube connected to it to move upward, and the through tube drives the support frame to slide upward in the slide groove, and the support frame drives the support rod, the rotating shaft sleeve and the No. 3 bevel gear to move upward, and the support rod drives the coaxially installed tooth tube upward during the upward movement, and as the flywheel As the flywheel continues to rotate, when the No. 2 push rod reaches the highest point of the ascending section, since the descending section is coplanar with the flywheel axis, the descending section is connected to the highest and lowest points of the ascending section. At this time, the descending surface vertically passes through the axis, and as the flywheel continues to rotate, the No. 2 push rod comes to the descending section. Under the action of gravity, the No. 2 push rod falls from the lowest point of the ascending section, and reciprocates in this way. The impact of the No. 2 push rod with the flywheel during its falling process generates vibration, thereby shaking off the glass fiber on the tooth tube. At the same time, the vibration improves the uniformity of the glass fiber on the conveyor belt, avoids the glass fiber being entangled on the tooth tube and requiring manual cleaning, thereby improving production efficiency and ensuring the uniform laying effect of the glass fiber.

[0015] Preferably, the tooth block is truncated cone-shaped, the large diameter section of the truncated cone-shaped tooth block is connected to the tooth roller, and the tooth blocks are staggered between the two horizontal tooth tubes.

[0016] When the cut glass fibers are evenly distributed, the glass fibers will be entangled on the roots of the tooth blocks. As they continue to accumulate, the subsequent glass fibers cannot be evenly distributed. At this time, manual cleaning is required, which not only increases the labor cost, but also affects the production efficiency. Therefore, the tooth blocks are designed to be truncated cone-shaped, and the large-diameter sections of the tooth blocks are connected to the tooth rollers. The glass fibers are wound on the roots of the tooth blocks. Since the aperture formed by the winding of the glass fibers remains unchanged, and the diameter of the tooth blocks gradually decreases, the friction between the glass fibers and the tooth blocks decreases. When the tooth tube drives the tooth blocks to rotate and the axis of the tooth blocks points vertically to the horizontal plane, they fall on the conveyor belt under the action of gravity, avoiding the glass fibers being entangled on the roots of the tooth blocks and requiring manual cleaning, thereby reducing labor cost investment.

[0017] Preferably, the tooth tube is slidably installed on a support rod, a compression spring is coaxially installed on the support rod, one side of the No. 4 bevel gear is connected to one end of the tooth tube through a compression spring, and the other end of the tooth tube is connected to the support frame through a compression spring, and the other end of the tooth tube is coaxially provided with a No. 1 boss, and the support frame is provided with a No. 2 boss, and the end faces of the No. 1 boss and the No. 2 boss are evenly distributed with helical teeth in an annular shape, and the helical teeth include an inclined surface and a horizontal surface, and the inclined surface is arranged at a certain angle to the radial direction of the tooth tube, and the horizontal plane is parallel to the axis of the tooth tube, and the horizontal plane is connected to the adjacent inclined surface, and the helical teeth of the No. 1 boss and the No. 2 boss are meshed with each other.

[0018] In the process of evenly distributing the glass fiber, since the tooth block itself has a certain size, the tooth block obstructs the glass fiber from being evenly distributed within the horizontal projection area of ​​the tooth block on the conveyor belt, thus causing the problem of uneven distribution. Therefore, the tooth tube is designed to be slidably installed on the connecting rod, and a No. 1 boss is coaxially provided at the other end of the tooth tube, and a No. 2 boss is provided on the support frame. The end faces of the No. 1 boss and the No. 2 boss are evenly distributed with bevel teeth in an annular shape. The bevel teeth include an inclined surface and a horizontal surface. The inclined surface is arranged at a certain angle to the radial direction of the tooth tube. The horizontal surface is parallel to the axis of the tooth tube, and the horizontal surface is connected to the adjacent inclined surface. The bevel teeth of the No. 1 boss and the No. 2 boss are meshed with each other, and the tooth tube is driven to rotate when the support rod rotates. At this time, the No. 1 cam and the No. 2 boss rotate relatively, and the inclined surfaces interact with each other during the process. , while rotating, it pushes the tooth tube to slide in the axial direction and squeezes the compression spring at the other end. When the tooth tube is pushed to the limit position, as the tooth tube continues to rotate, the bevel teeth come to the horizontal plane, and the horizontal plane is parallel to the axis of the tooth tube, and the horizontal plane is connected to the adjacent inclined surface. With the push of the compression spring, the bevel teeth are pushed to the limit position on the other side of the adjacent inclined surface, and the No. 1 boss and the No. 2 boss are re-engaged, and so on. By utilizing the support rod to drive the tooth tube to rotate, under the action of the No. 1 boss, the No. 2 boss and the compression spring, the tooth tube reciprocates in the axial direction, thereby avoiding the obstruction of the tooth block, which makes it impossible for the glass fiber to be evenly spread within the horizontal projection area of ​​the tooth block on the conveyor belt, resulting in uneven distribution problems, thereby ensuring product quality.

[0019] Preferably, a plurality of rollers are connected inside the conveyor belt, and both ends of the rollers are rotatably mounted on a bracket, and a driven wheel is provided at one end of one of the rollers. A plurality of tooth surface segments and smooth surface segments are evenly distributed on the side wall of the No. 1 bevel gear, and teeth are provided on the tooth surface segment. The smooth surface segment is a smooth curved surface, and the tooth surface segment is connected to the smooth surface segment at the first position, and the teeth are meshed with the driven wheel.

[0020] When the short cutter cuts the glass fiber, due to the width of the short cutter itself, there is an idle gap during cutting. At this time, the short cutter cannot cut the glass fiber. At this time, no glass fiber will be output and enter the tooth tube to be evenly distributed on the conveyor belt, resulting in uneven distribution. Therefore, multiple tooth surface segments and smooth surface segments are evenly distributed on the side wall of the No. 1 bevel gear. The tooth surface segment is connected to the smooth surface segment in the first position. When the No. 1 bevel gear rotates, the tooth surface segment meshes with the driven wheel, thereby driving the roller shaft to rotate. The rotation of the roller shaft drives the conveyor belt to move. When the driven wheel separates from the tooth surface segment and comes to the smooth surface segment, due to the The driving wheel does not contact the smooth surface section, so the driven wheel does not rotate, the transmission belt stops moving, and so on. The conveyor belt is driven to move intermittently by the rotation of the No. 1 bevel gear. When the short cutter does not cut and does not produce short-cut glass fibers, the conveyor belt stops moving. The conveyor belt moves during the cutting process of the cutter, so that the conveyor belt can cooperate with the cutting gap caused by the short cutter's own width, avoiding the short cutter's inability to cut the glass fibers, so that the glass fibers cannot be produced and enter the tooth tube and are evenly distributed on the conveyor belt, resulting in uneven distribution problems, thereby ensuring product quality.

[0021] Preferably, the angle formed between the cutting edge direction of the short cutting knife and the horizontal direction is α, wherein 10°<α<40°.

[0022] Since the short chopper needs a greater cutting force when cutting the glass fiber, this will accelerate the wear of the short chopper. The replacement of the short chopper increases the production cost. Therefore, the blade direction of the short chopper is set at a certain angle to the horizontal direction. When the short chopper cuts the glass fibers on the feed port one by one in the horizontal direction, the number of glass fibers cut by the short chopper at a moment can be reduced, thereby reducing the resistance of the glass fiber to the short chopper when the chopper is cutting, thereby reducing the cutting force on the short chopper, avoiding the wear of the short chopper and the replacement of the short chopper, thereby reducing the production cost.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention uses a driving assembly and a short cutter. When the glass fiber is to be short-cut, the rotation of the motor drives the flywheel to rotate, the rotation of the flywheel drives the rocker to move, the rocker drives the No. 1 push rod to slide, the No. 1 push rod slides axially upward on the through pipe, the No. 1 push rod pushes the slider to slide in the slide groove, the slider drives the short cutter to slide up and down, and the design of having blades at both ends of the short cutter allows the short cutter to move relative to the feed port. During the up and down movement, the blades at both ends cut the glass fiber at the feed port, thereby avoiding wear of the short cutter due to frequent shearing of a single blade, reducing the replacement of the short cutter, and thus reducing production costs.

[0025] 2. The present invention arranges a uniform spreading component and boss No. 1 and boss No. 2. After the glass fibers are chopped, they need to be transferred to an opener for opening. The motor drives the tooth tube to rotate, and the tooth tube drives the tooth block to break up the glass fibers so that they are evenly distributed, thereby avoiding the need for manual transfer to an opener for opening. At the same time, the support rod drives the tooth tube to rotate. Under the action of boss No. 1, boss No. 2 and a compression spring, the tooth tube is moved back and forth in the axial direction, thereby avoiding the obstruction of the tooth block so that the glass fibers cannot be evenly spread within the horizontal projection area of ​​the tooth block on the conveyor belt. This reduces production costs while ensuring product quality.

[0026] 3. The present invention adopts the design of the fit between the flywheel and the No. 2 push rod and the tooth block, and drives the fit between the flywheel and the No. 2 push rod to rise and fall through the rotation of the flywheel, thereby finally driving the tooth tube to rise and fall. At the same time, the truncated cone design of the tooth block, when the axis of the tooth block points vertically to the horizontal plane, under the action of gravity and the vibration of the tooth tube during its fall, prevents the glass fiber from being entangled in the tooth tube and the tooth block, which requires manual cleaning, thereby reducing labor cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the glass fiber precursor short-cut machine of the present invention;

[0028] Figure 2 It is a cross-sectional view of the overall structure of the glass fiber precursor short-cut machine of the present invention;

[0029] Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A;

[0030] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0031] Figure 5 For the present invention Figure 2 A partial enlarged view of point C in the middle;

[0032] Figure 6 It is a structural schematic diagram of the uniform paving assembly of the present invention;

[0033] Figure 7 For the present invention Figure 6 A partial enlarged view of point D in the middle;

[0034] Figure 8 It is a structural schematic diagram of the gear cylinder of the present invention;

[0035] Fig. 9 It is a schematic structural diagram of the short cutting knife of the present invention.

[0036] In the figure: 1, bracket; 11, slide; 2, conveyor belt; 21, roller; 3, pressure shaft; 4, housing; 42, feed port; 5, motor; 6, evenly spread assembly; 61, No. 1 bevel gear; 611, driven wheel; 612, tooth surface segment; 613, tooth; 614, smooth surface segment; 62, No. 2 bevel gear; 63, rotating rod; 631, No. 2 guide groove; 64, No. 3 bevel gear; 641, rotating shaft sleeve; 642, limit block; 65, support frame; 651, through pipe; 652, No. 1 guide groove; 653, No. 2 push rod; 66. Support rod; 661. Gear ring; 662. Belt; 663. Active rod; 664. Driven rod; 67. Bevel gear No. 4; 68. Gear tube; 681. Gear block; 7. Drive assembly; 71. Flywheel; 711. Contact surface; 712. Ascending section surface; 713. Descending section surface; 72. Rocker; 73. Push rod No. 1; 74. Sliding block; 75. Short cutting knife; 76. Knife edge; 81. Compression spring; 82. Boss No. 1; 83. Boss No. 2; 84. Bevel teeth; 841. Inclined surface; 842. Horizontal surface. DETAILED DESCRIPTION

[0037] See also Figures 1 to 9 The present invention provides a glass fiber raw yarn short cutting machine, and the technical scheme is as follows:

[0038] A glass fiber precursor short-cut machine includes a bracket 1, a conveyor belt 2, a pressure shaft 3, a shell 4, a mixture nozzle, a feed port 42, a motor 5, a slider 74, a short-cut knife 75, the conveyor belt 2 is installed horizontally on the bracket 1, the pressure shaft 3 is installed above the conveyor belt, the bracket 1 is movably connected to the pressure shaft 3, a shell 4 is installed above the conveyor belt 2, the bracket 1 is connected to the shell 4, the mixture nozzle is installed in the shell 4, the feed port 42 is connected to the upper side of the shell 4, and the motor 5 is installed on the bracket 1.

[0039] Specifically, the bracket 1 is equipped with an evenly spreading component 6 and a driving component 7. The bracket 1 is vertically symmetrically provided with a slide groove 11. A slider 74 is slidably installed in the slide groove 11. The short cutting knife 75 is connected to the slider 74. The short cutting knife 75 is vertically arranged. The feed port 42 is in contact with the short cutting knife 75. The slider 74 is hinged to the driving component 7. The motor 5 is connected to the driving component 7. The driving component 7 is used to rotate the motor 5 to drive the slider 74 so that the short cutting knife 75 slides in the vertical direction. The evenly spreading component 6 is used to rotate the motor 5 so that the cut materials are evenly distributed on the conveyor belt 2.

[0040] See also Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The evenly spread component 6 includes a first bevel gear 61, a rotating rod 63, a second bevel gear 62, a third bevel gear 64, a support frame 65, a support rod 66, a gear ring 661, a belt 662, a fourth bevel gear 67, a gear tube 68 and a gear block 681. The first bevel gear 61 is installed on the motor 5, and the rotating rod 63 is rotatably installed on the bracket 1. The two ends of the rotating rod 63 are respectively connected to the third bevel gear 64 and the second bevel gear 62. The support frame 65 is slidably installed in the slide groove 11. A plurality of support rods 66 are horizontally arranged in the shell 4. The support frame 65 is rotatably connected to the two ends of the support rod 66. There are two groups of support rods 66, and the number of support rods 66 in each group is 2, and the support rods in the same group 66 is arranged horizontally, and the two groups of support rods 66 are arranged in the vertical direction. The support rod 66 includes an active rod 663 and a driven rod 664. A fourth bevel gear 67 is provided on one side of the active rod 663. The tooth tube 68 is coaxially installed with the support rod 66. The tooth blocks 681 are evenly distributed on the tooth tube 68. The tooth blocks 681 are truncated cone-shaped. The tooth rollers are connected to the large diameter sections of the truncated cone-shaped tooth blocks 681. The tooth blocks 681 are staggered between the two horizontal tooth rollers. The tooth tubes 68 on each group of support rods 66 are meshed with each other through the tooth ring 661. The two groups of tooth tubes 68 are connected vertically by a belt 662. The second bevel gear 62 is meshed with the first bevel gear 61, and the fourth bevel gear 67 is meshed with the third bevel gear 64.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Fig. 9The driving assembly 7 includes a flywheel 71, a through pipe 651, a No. 1 push rod 73 and a rocker 72. The motor 5 is connected to the axis of the flywheel 71. One side of the support frame 65 is connected to the through pipe 651. The through pipe 651 is provided with a No. 1 guide groove 652 in the vertical direction. The No. 1 push rod 73 is connected to the slider 74. The No. 1 push rod 73 is slidably installed in the through pipe 651. The rocker 72 is hinged to one end of the outer ring of the flywheel 71, and the other end of the rocker 72 is hinged to the No. 1 push rod 73 through the No. 1 guide groove 652. The short cutting knife 75 is provided with a blade 76 at both ends. The angle between the direction of the blade 76 of the short cutting knife 75 and the horizontal direction is α, wherein 10°<α<40.

[0042] See also Figure 3 , Figure 5 , Figure 6 A contact surface 711 is provided on the side of the flywheel 71, and the contact surface 711 includes a descending section surface 713 and an ascending section surface 712. The descending section surface 713 is coplanar with the axis of the flywheel 71, and the ascending section surface 712 is an arc surface with increasing radius. The descending section surface 713 is connected with the lowest point and the highest point of the ascending section. The No. 2 push rod 653 is connected to one end of the through pipe 651, and a No. 2 guide groove 631 is vertically opened on the rotating rod 63. The rotating shaft sleeve 641 is rotatably installed on the support frame 65. The rotating rod 63 is rotatably connected to the No. 3 bevel gear 64. A limit block 642 is provided in the rotating shaft sleeve 641. The No. 3 bevel gear 64 is connected to the top of the rotating shaft sleeve 641. The limit block 642 is slidably installed in the No. 2 guide groove 631, and the flywheel 71 is fitted with the bottom end of the No. 2 push rod 653.

[0043] See also Figure 6 , Figure 7 , Figure 8 A tooth tube 68 is slidably installed on the support rod 66, and the support rod 66 is coaxially installed with a compression spring 81. One side of the fourth bevel gear 67 is connected to one end of the tooth tube 68 through a compression spring 81, and one end of the remaining tooth tube 68 is connected to the support frame 65 through a compression spring 81. The No. 1 boss 82 is coaxially connected to the other end of the tooth tube 68, and the No. 2 boss 83 is connected to the support frame 65. The end faces of the No. 1 boss 82 and the No. 2 boss 83 are evenly distributed with helical teeth 84 in an annular shape. The helical teeth 84 include a horizontal plane 842 and an inclined plane 841. The horizontal plane 842 is parallel to the axis of the tooth tube 68, and the inclined plane 841 is set at a certain angle in the radial direction of the tooth tube 68. The horizontal plane 842 is connected to the adjacent inclined plane 841, and the helical teeth 84 of the No. 2 boss 83 and the No. 1 boss 82 are meshed with each other.

[0044] See also Figure 1 , Figure 2 , Figure 4A plurality of rollers 21 are connected in the conveyor belt 2, and two ends of the rollers 21 are rotatably mounted on the bracket 1, and a driven wheel 611 is provided at one end of one of the rollers 21. A plurality of smooth surface segments 614 and hinge tooth surface segments 612 are evenly distributed on the side wall of the No. 1 bevel gear 61, and the smooth surface segment 614 is a smooth curved surface, and teeth 613 are provided on the tooth surface segment 612, and the tooth surface segment 612 is connected to the smooth surface segment 614 in the first position.

[0045] Working principle: When the glass fiber is to be chopped, the glass fiber is put in from the feed port 42. At this time, the motor 5 runs to drive the flywheel 71 to rotate. When the flywheel 71 rotates and drives the rocker 72 to move upward from a low position, the rocker 72 drives the No. 1 push rod 73 to slide in the through pipe 651. Under the action of the No. 1 guide groove 652, the No. 1 push rod 73 slides axially in the through pipe 651. The No. 1 push rod 73 pushes the slider 74 to slide in the slide groove 11. The slider 74 drives the short-cutting knife 75 to slide upward. The short-cutting knife 75 passes through the feed port 42. At this time, the short-cutting knife 75 and the feed port 42 have relative motion. At this time, the upper edge 7 of the short-cutting knife 75 6 contacts with the glass fiber. At the same time, since the blade direction of the short cutting knife 75 is set in the horizontal direction, the short cutting knife 75 cuts the glass fibers one by one on the horizontal plane 842, reducing the cutting force on the short cutting knife 75. When the flywheel 71 rotates and drives the rocker 72 to move downward from a high position, the rocker 72 drives the No. 1 push rod 73 to slide in the through pipe 651. Under the action of the No. 1 guide groove 652, the No. 1 push rod 73 slides downward axially along the through pipe 651. The No. 1 push rod 73 drives the slider 74 to slide in the slide groove 11. The slider 74 drives the short cutting knife 75 to slide downward. As above, the short cutting knife 75 cuts the glass fibers through the feed port 42.

[0046] When the cut glass fiber falls onto the tooth tube 68 below under the action of gravity, while the motor 5 rotates to cut the glass fiber, since the axis of the No. 1 bevel gear 61 is installed on the motor 5, the No. 1 bevel gear 61 rotates at this time, and the No. 1 bevel gear 61 drives the No. 2 bevel gear 62 engaged with it to rotate, and the No. 2 bevel gear 62 drives the rotating rod 63 to rotate, and the rotating rod 63 drives the No. 3 bevel gear 64 to rotate, and the No. 3 bevel gear 64 drives the No. 4 bevel gear 67 engaged with it to rotate, and the support rod 66 includes an active rod 663 and a driven rod 664, and the No. 4 bevel gear 67 is installed on the active rod 663, and the No. 4 bevel gear 67 drives the active rod 663 to rotate, and the active rod 663 drives the driven rod 664 engaged with it horizontally to rotate through the gear ring 661, and the active rod 663 drives the driven rod 664 in the longitudinal direction to rotate through the belt 662 The support rods 66 are moved, thereby realizing the synchronous rotation of multiple support rods 66. At the same time, the support rods 66 drive the tooth tube 68 installed coaxially therewith to rotate. The tooth tube 68 drives the tooth block to rotate, and the bundled cut glass fibers are scattered. A plurality of tooth surface segments 612 and smooth surface segments 614 are evenly distributed on the side of the No. 1 bevel gear 61. The tooth surface segment 612 is connected to the smooth surface segment 614 in the first position. A plurality of roller shafts 21 are connected in the conveyor belt 2. A driven wheel 611 is provided at one end of one roller shaft 21. When the No. 1 bevel gear 61 rotates, the tooth surface segment 612 meshes with the driven wheel 611, thereby driving the roller shaft 21 to rotate. The rotation of the roller shaft 21 drives the conveyor belt 2 to move. When the driven wheel 611 disengages from the tooth surface segment 612 and comes to the smooth surface segment 614, since the driven wheel 611 is not in contact with the smooth surface segment 614, the driven wheel 611 does not rotate, and the transmission belt stops moving, and so on.

[0047] When the tooth tube 68 rotates, the No. 1 cam is driven to rotate. At this time, the No. 1 cam and the No. 2 boss 83 rotate relative to each other. During the process, the inclined surfaces 841 interact with each other, pushing the tooth tube 68 to slide in the axial direction while rotating, and squeezing the compression spring 81 at the other end. When the tooth tube 68 is pushed to the limit position, as the tooth tube 68 continues to rotate, the bevel tooth 84 comes to the horizontal plane 842, and the horizontal plane 842 is parallel to the axis of the tooth tube 68. The horizontal plane 842 is connected to the adjacent inclined surface 841. With the push of the compression spring 81, the bevel tooth 84 is pushed to the limit position on the other side of the adjacent inclined surface 841, and the tooth No. 1 boss 82 and the No. 2 boss 83 are re-engaged, and this reciprocating process allows the tooth tube 68 to move back and forth in the axial direction to avoid the glass fiber being entangled in the tooth block 681 and being manually cleaned, thereby reducing labor cost investment.

[0048] The side of the flywheel 71 is provided with an ascending section surface 712 and a descending section surface 713. During the rotation of the flywheel 71, the ascending section surface 712 pushes the No. 2 push rod 653 which is out of contact with it to rise, and the No. 2 push rod 653 drives the through pipe 651 connected to it to move upward, and the through pipe 651 drives the support frame 65 to slide upward in the slide groove 11, and the support frame 65 drives the support rod 66, the rotating shaft sleeve 641 and the No. 3 bevel gear 64 to move upward. During the upward movement of the support rod 66, the coaxially installed gear tube 68 is driven upward. As the flywheel 71 continues to rotate, the No. 2 push rod 653 reaches the ascending section surface When 712 is at the highest point, since the descending section surface 713 is coplanar with the axis of the flywheel 71, the descending section surface 713 is connected to the highest point and the lowest point of the ascending section. At this time, the descending surface vertically passes through the axis. As the flywheel 71 continues to rotate, the No. 2 push rod 653 comes to the descending section surface 713. Under the action of gravity, the No. 2 push rod 653 falls from the lowest point of the ascending section surface 712 again. During the falling process, the No. 2 push rod 653 collides with the flywheel 71 to generate vibration, thereby shaking off the glass fiber on the tooth tube 68. This reciprocating process avoids the glass fiber from being entangled in the tooth tube 68 and requiring manual cleaning.

[0049] When the rotating rod 63 rotates, the rotating rod 63 pushes the bearing sleeve rotatably installed on the support frame 65 to rotate through the limit block 642 slidably installed with it in the second guide groove 631, thereby driving the third bevel gear 64 connected to it to rotate around the rotating rod 63. At the same time, during the rotation of the flywheel 71, the support frame 65 is pushed to move longitudinally through the second push rod 653 and the through pipe 651, and the support frame 65 drives the bearing sleeve, the third bevel gear 64 and the support rod 66 to move up and down. At this time, the limit block 642 slides in the second guide groove 631, and the rotating rod 63 pushes the bearing sleeve to rotate, while ensuring that the support rod 66 continues to rotate during the rising process.

[0050] When the cut glass fibers are spread on the conveyor belt 2 through the tooth tube 68 and the feeding block, the conveyor belt 2 drives the glass fibers forward to the bottom of the mixture nozzle. At this time, the mixture nozzle sprays out the heated mixture, and the mixture penetrates into the gaps between the glass fibers. With the operation of the conveyor, the glass fibers come to the bottom of the pressing shaft 3, and are squeezed and shaped under the action of gravity.

[0051] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A glass fiber precursor short-cut machine, comprising a support (1), a conveyor belt (2), a pressure shaft (3), a shell (4), a mixture nozzle, a feed port (42), a motor (5), a slider (74) and a short-cut knife (75), wherein the support (1) is horizontally mounted with a conveyor belt (2), a pressure shaft (3) is mounted above the conveyor belt (2), the pressure shaft (3) is movably connected to the support (1), a shell (4) is mounted above the conveyor belt (2), the shell (4) is connected to the support (1), a mixture nozzle is arranged inside the shell (4), a feed port (42) is connected to the upper side of the shell (4), a motor (5) is mounted on the support (1), and the characteristics are as follows: The support (1) is provided with a driving component (7) and an evenly spreading component (6). A slide groove (11) is vertically symmetrically provided on the support (1). A slider (74) is slidably installed in the slide groove (11). The slider (74) is connected to a short cutter (75). The short cutter (75) is vertically arranged. The short cutter (75) is in contact with the feed port (42). The driving component (7) is hinged to the slider (74). The driving component (7) is connected to the motor (5). The driving component (7) is used to rotate the motor (5) to drive the slider (74) so ​​that the short cutter (75) slides in the vertical direction. The evenly spreading component (6) is used to rotate the motor (5) so that the cut materials are evenly distributed on the conveyor belt (2).

2. The glass fiber strand chopping machine according to claim 1, characterized in that: The evenly spread component (6) comprises a first bevel gear (61), a rotating rod (63), a second bevel gear (62), a third bevel gear (64), a support frame (65), a support rod (66), a gear ring (661), a belt (662), a fourth bevel gear (67), a gear tube (68) and a gear block (681); the first bevel gear (61) is installed on the motor (5); a rotating rod (63) is rotatably installed on the bracket (1); the two ends of the rotating rod (63) are respectively connected to the second bevel gear (62) and the third bevel gear (64); a support frame (65) is slidably installed in the slide groove (11); a plurality of support rods (66) are horizontally arranged in the housing (4); the two ends of the support rod (66) are rotatably connected to the support frame (65); 6) There are two groups, each group of support rods (66) has two support rods (66), and the support rods (66) in the same group are arranged horizontally. The two groups of support rods (66) are arranged in the vertical direction. The support rods (66) include an active rod (663) and a driven rod (664). A fourth bevel gear (67) is provided on one side of the active rod (663). A tooth tube (68) is coaxially installed on the support rod (66). Tooth blocks (681) are evenly distributed on the tooth tube (68). The tooth tubes (68) on each group of support rods (66) are meshed with each other through a tooth ring (661). The two groups of tooth tubes (68) are connected vertically by a belt (662). The first bevel gear (61) is meshed with the second bevel gear (62), and the third bevel gear (64) is meshed with the fourth bevel gear (67).

3. The glass fiber strand chopping machine according to claim 1, characterized in that: The driving assembly (7) comprises a flywheel (71), a through pipe (651), a push rod (73) and a rocker (72); the motor (5) is connected to the axis of the flywheel (71); one side of the support frame (65) is connected to the through pipe (651); a guide groove (652) is provided on the through pipe (651) in the vertical direction; the slider (74) is connected to the push rod (73); the push rod (73) is slidably installed in the through pipe (651); the outer ring of the flywheel (71) is hinged to one end of the rocker (72); the other end of the rocker (72) is hinged to the push rod (73) through the guide groove (652); and the short cutting knife (75) is provided with a blade (76) at both the upper and lower ends.

4. The glass fiber strand chopping machine according to claim 3, characterized in that: The flywheel (71) is provided with a contact surface (711) on the side surface, and the contact surface (711) includes an ascending section surface (712) and a descending section surface (713). The ascending section surface (712) is an arc surface with an increasing radius, and the descending section surface (713) is coplanar with the axis of the flywheel (71). The descending section surface (713) is connected to the highest point and the lowest point of the ascending section. One end of the through pipe (651) is connected to a second push rod (653). The rotating rod (63) is connected to a second push rod (653). A second guide groove (631) is vertically opened, a rotating shaft sleeve (641) is rotatably installed on the support frame (65), the third bevel gear (64) is rotatably connected to the rotating rod (63), a limit block (642) is arranged inside the rotating shaft sleeve (641), the top end of the rotating shaft sleeve (641) is connected to the third bevel gear (64), the limit block (642) is slidably installed in the second guide groove (631), and the flywheel (71) is fitted with the bottom end of the second push rod (653).

5. The glass fiber strand chopping machine according to claim 2, characterized in that: The tooth block (681) is in a truncated cone shape, the large diameter section of the truncated cone-shaped tooth block (681) is connected to a tooth roller, and the tooth blocks (681) are staggered between two horizontal tooth rollers.

6. The glass fiber strand chopping machine according to claim 2, characterized in that: The tooth tube (68) is slidably mounted on the support rod (66), a compression spring (81) is coaxially mounted on the support rod (66), one side of the fourth bevel gear (67) is connected to one end of the tooth tube (68) through the compression spring (81), and the other end of the tooth tube (68) is connected to the support frame (65) through the compression spring (81), the other end of the tooth tube (68) is coaxially provided with a first boss (82), the support frame (65) is provided with a second boss (83), and the first boss (82) is coaxially mounted on the support frame (65). The end faces of the first boss (82) and the second boss (83) are evenly distributed with bevel teeth (84) in an annular shape. The bevel teeth (84) include an inclined surface (841) and a horizontal surface (842). The inclined surface (841) is arranged at a certain angle in the radial direction of the tooth tube (68). The horizontal surface (842) is parallel to the axis of the tooth tube (68). The horizontal surface (842) is connected to the adjacent inclined surface (841). The bevel teeth (84) of the first boss (82) and the second boss (83) are meshed with each other.

7. The glass fiber strand chopping machine according to claim 1, characterized in that: A plurality of rollers (21) are connected inside the conveyor belt (2), and both ends of the rollers (21) are rotatably mounted on the bracket (1). A driven wheel (611) is provided at one end of one of the rollers (21). A plurality of tooth surface segments (612) and smooth surface segments (614) are evenly distributed on the side wall of the first bevel gear (61). The tooth surface segment (612) is provided with teeth (613), and the smooth surface segment (614) is a smooth curved surface. The tooth surface segment (612) is connected to the smooth surface segment (614) at the first position.

8. The glass fiber strand chopping machine according to claim 3, characterized in that: The angle formed between the direction of the cutting edge (76) of the short cutting knife (75) and the horizontal direction is α, wherein 10°<α<40°.

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