A slitting device for injection molded toothbrush production

Abstract

The present invention belongs to the technical field of injection molded toothbrush production, and specifically relates to a slitting device for injection molded toothbrush production, comprising a conveying assembly, the conveying assembly comprising a conveyor belt, a movable frame slidably connected to the lower portion of the conveyor belt, the movable frame being connected to a push plate and a collecting hood; a cutting assembly, the cutting assembly being assembled on the rear side of the conveyor belt; a guide assembly, the guide assembly comprising a guide frame, the guide frame being assembled on the rear side of the conveyor belt, the outlet end of the guide frame being provided with a conveyor belt 1, the guide end of the conveyor belt 1 being provided with a conveyor belt 2, and the conveyor belt 2 being connected to a return frame. The invention can automatically extend the collecting hood when the toothbrush is cut, and retract it after the cutting is completed, which can not only realize waste collection without affecting the unloading of the toothbrush, but also quickly complete the cutting of the injection molded toothbrush, and polish the toothbrush during the cutting process, and after the toothbrush cutting is completed, adjust the direction of the cut toothbrush so that the toothbrush head is always facing one side, which is convenient for the subsequent hair planting work.

Description

Technical Field

[0001] The invention belongs to the technical field of injection-molded toothbrush production, and particularly relates to a slitting device for injection-molded toothbrush production. Background Art

[0002] As a key category of daily chemical products, injection-molded toothbrushes rely on efficient and precise slitting processes to separate the molded, conjoined toothbrush blanks. However, existing slitting equipment suffers from significant shortcomings in automation and process connectivity, leading to rising production costs and fluctuating yield rates.

[0003] First, during the loading and unloading process, the operator needs to manually position the injection-molded one-piece toothbrush blanks (usually in an array of 6-12 pieces) to the slitting station, and then transfer them batch by batch to the collection basket after slitting is completed.

[0004] Secondly, the plastic flash and debris generated during the slitting process (accounting for about 3%-5% of the total weight of the blank) are usually scattered directly around the equipment and require regular shutdown and cleaning.

[0005] Finally, after existing slitting equipment completes slitting, the individual toothbrushes fall randomly into a collection container due to gravity, resulting in a high degree of misalignment between the brush head and handle orientation, with over 90% of toothbrushes misaligned. However, the subsequent bristle implantation process strictly requires the correct orientation of the brush head to ensure precise matching of the implant holes. Summary of the Invention

[0006] The purpose of the present invention is to provide a slitting device for the production of injection-molded toothbrushes, which can automatically extend the collection cover synchronously when the toothbrush is cut, and retract the collection cover after the slitting is completed. It can not only collect waste materials, but also will not affect the unloading of the toothbrush after slitting. It can also quickly complete the slitting of the injection-molded toothbrush and polish the toothbrush during the slitting process. After the toothbrush slitting is completed, the direction of the slitting toothbrush is adjusted so that the toothbrush head is always facing one side when it is discharged, which is convenient for subsequent hair planting work.

[0007] The technical solutions adopted by the present invention are as follows:

[0008] A slitting device for producing injection-molded toothbrushes, comprising: a conveying assembly, the conveying assembly comprising a conveyor belt, a movable frame slidably connected below the conveyor belt, a push plate fixedly connected to the upper end of the movable frame, and a collection cover fixedly connected to the lower end;

[0009] The cutting assembly is assembled on the rear side of the conveyor belt, and a storage rack is provided below the cutting assembly;

[0010] The guide assembly includes a guide frame, which is assembled on the rear side of the conveyor belt. The outlet end of the guide frame is provided with a conveyor belt 1, and the guide end of the conveyor belt 1 is provided with a conveyor belt 2, and the width of the conveyor belt 2 is smaller than that of the conveyor belt 1. The lower end of the conveyor belt 2 is connected to a return frame, and the output end of the return frame is fixedly connected to the top of the guide frame;

[0011] When the mobile rack moves, the push plate pushes the toothbrush on the conveyor belt into the storage rack, and the mobile rack will move synchronously to the bottom of the cutting assembly. The guide frame is used to send the cut toothbrushes to conveyor belt one and conveyor belt two. When conveyor belt two transports the toothbrushes, it can screen the toothbrushes in different directions into the return frame and send them back to the guide frame.

[0012] In a preferred embodiment, an additional chassis is provided below the conveyor belt, and the guide frame, conveyor belt 1, conveyor belt 2 and return frame are all installed on the additional chassis. The conveying assembly also includes a pneumatic rod 1, which is fixedly installed below the conveyor belt, and the output end of the pneumatic rod 1 is fixedly connected to the mobile frame. A collecting box is fixedly installed on the additional chassis below the conveyor belt, and an inlet is provided at the upper end of the collecting box, and the discharge outlet at the lower end of the collecting cover is movably sleeved in the inlet at the upper end of the collecting box.

[0013] In a preferred embodiment, the lower end of the conveyor belt is fixedly connected to two sets of limiting long rods, and both ends of the collecting cover are slidably connected to the outer ring of the limiting long rods, and the collecting cover is a triangular hollow cover, the side with the largest surface area is close to the conveyor belt and is provided with a material receiving port, and the lower end of the inclined part of the bottom surface is provided with a discharge port, and a pipe is fixedly installed at the position of the discharge port at the lower end, and the pipe is movably sleeved in the inlet at the upper end of the collecting box.

[0014] In a preferred embodiment, two groups of storage racks are fixedly connected to one side of the conveyor belt close to the cutting assembly, and the two groups of storage racks are installed symmetrically with each other. Pneumatic rod 2 is fixedly installed at the lower end of the two groups of storage racks, and a clamping rack is fixedly connected to the output end of pneumatic rod 2, and the clamping rack is slidably connected to the lower end of the storage rack.

[0015] In a preferred embodiment, the cutting assembly includes an electric guide rail, which is installed on the rear side of the conveyor belt through an assembly bracket, an electric push rod is installed at the lower end of the electric guide rail, and a placement rack is fixedly installed at the lower end of the electric push rod. The inner cavity of the placement rack is slidably connected to two sets of tool holders, and the inner cavities of the two sets of tool holders are rotatably connected to the blades through ball bearings. A motor is fixedly installed on the outer side of the placement rack, and the output shaft of the motor passes through the placement rack and is fixedly connected to the drive shaft. The outer ring of the drive shaft passes through the two sets of tool holders and is slidably connected to the center of the two sets of blades. The upper ends of the two sets of tool holders are slidably connected to positioning bolts, and the positioning bolts are threadedly connected to the upper end of the placement rack.

[0016] In a preferred embodiment, a plurality of positioning slots are provided above the placement rack, and the positioning bolts are slidably connected in the slots.

[0017] In a preferred embodiment, the outer edges of the blades are cutting edges, and the inner ring portions of the two sets of blades that are away from each other are fixedly connected with sandpaper.

[0018] In a preferred embodiment, the guide assembly also includes a screw rod, which is threadedly connected to the middle of the inner cavity of the guide frame, and the lower end of the screw rod is rotatably connected to a blocking rod, which is movably sleeved in the inner cavity at the outlet of the guide frame and is located above the conveyor belt.

[0019] In a preferred embodiment, a mounting plate is fixedly connected to the middle of the outlet position at the lower end of the guide frame, the screw rod is threadedly connected to the mounting plate, both sides of the upper end of the blocking rod are fixedly connected to the limiting rods, and the two sets of limiting rods are slidably connected to the mounting plate in the inner cavity of the guide frame.

[0020] In a preferred embodiment, the guide assembly also includes a pneumatic rod three, which is fixedly installed in the middle of the outer side of the conveyor belt two, and the output end of the pneumatic rod three passes through the outer side of the conveyor belt two and is placed above the transport part of the conveyor belt two. A guide plate is fixedly connected to the output end of the pneumatic rod three, and two sets of limit rods are fixedly connected to one end of the guide plate close to the pneumatic rod three, and the limit rods are slidably connected to the conveyor belt two.

[0021] The technical effects achieved by the present invention are:

[0022] The conveying assembly of the present invention can automatically extend the collection cover synchronously when cutting, and retract the collection cover after cutting is completed, so that waste can be collected without affecting the discharge of the cut toothbrushes. When the device is in operation, when the conveyor belt transports the injection-molded toothbrush to the position of the push plate, the movable frame will push the push plate to move, push the injection-molded toothbrush into the clamping part of the conveying assembly, and clamp the toothbrush to fix it. At the same time, the movable frame will also push the collection cover to extend and be located under the toothbrush waiting to be cut, so that waste can directly fall onto the collection cover when the toothbrush is cut. After cutting is completed, the collection cover can be retracted so that the toothbrush can be discharged downward.

[0023] The cutting assembly of the present invention can quickly complete the slitting of injection-molded toothbrushes and can polish the toothbrushes during the slitting process, thereby improving practicality. Before slitting, the regulating part of the segmentation assembly drives its slitting parts to move to the same height of the toothbrushes and quickly slit the toothbrushes. During the slitting process, the part for slitting the toothbrush will also polish the slitting parts of the toothbrush. After the slitting is completed, it resets and polishes the toothbrush a second time, thereby achieving rapid slitting of the toothbrush and polishing during slitting, thereby improving efficiency.

[0024] The guide assembly of the present invention can adjust the direction of the toothbrush after the toothbrush is cut, so that the toothbrush head is always facing one side when it is discharged, which is convenient for the subsequent hair planting work; after the toothbrush is cut, it will fall into the guide frame, and then the toothbrush will be transported upward by the drive of conveyor belt 1, and during transportation, the toothbrush transported in the vertical direction will be blocked by the limiting part of the guide assembly, so that only the toothbrush lying horizontally can continue to be transported, and when the toothbrush is transported to conveyor belt 2, due to gravity, the toothbrush with the center of gravity facing the outside of conveyor belt 2 will fall downward into the return frame, and slide back into the guide frame for transportation again. Only the toothbrush with the center of gravity close to conveyor belt 2 can continue to be transported, thereby realizing the direction control of the toothbrush after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the conveying component in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the collection box in the present invention;

[0028] Figure 4 Schematic diagram of the position of the pneumatic rod 1 in the present invention;

[0029] Figure 5 This is a rendering of the extended collection hood of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the storage rack of the present invention;

[0031] Figure 7 is an exploded schematic diagram of the cutting assembly of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the guide assembly in the present invention;

[0033] Figure 9 It is a schematic diagram of the position of the discharge belt in the present invention;

[0034] Figure 10 It is a schematic diagram of the position of the blocking rod in the present invention;

[0035] Figure 11 It is a rear view schematic diagram of the conveyor belt 2 in the present invention;

[0036] Figure 12 It is a schematic diagram of the position of the reflux frame in the present invention;

[0037] Figure 13 It is a structural schematic diagram of the guide plate in the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 10. Conveying assembly; 11. Conveyor belt; 12. Pneumatic rod 1; 13. Moving frame; 14. Push plate; 15. Collection cover; 16. Collection box; 17. Storage rack; 18. Pneumatic rod 2; 19. Clamping frame; 20. Cutting assembly; 21. Electric guide rail; 22. Electric push rod; 23. Placement rack; 24. Tool holder; 25. Blade; 26. Motor; 27. Drive shaft; 28. Positioning bolt; 30. Guide assembly; 31. Guide frame; 32. Conveyor belt 1; 33. Conveyor belt 2; 34. Return frame; 35. Discharge belt; 36. Screw; 37. Blocking rod; 38. Pneumatic rod 3; 39. Guide plate. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0043] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0044] Please see the attached Figures 1 to 2 As shown, this embodiment provides a slitting device for injection molded toothbrush production, including a conveying assembly 10, the conveying assembly 10 includes a conveyor belt 11, a movable frame 13 is slidably connected below the conveyor belt 11, the upper end of the movable frame 13 is fixedly connected to a push plate 14, and the lower end is fixedly connected to a collection cover 15;

[0045] The cutting assembly 20 is assembled on the rear side of the conveyor belt 11, and a storage rack 17 is provided below the cutting assembly 20;

[0046] The guide assembly 30 includes a guide frame 31, which is assembled on the rear side of the conveyor belt 11. The outlet end of the guide frame 31 is provided with a conveyor belt 1 32, and the guide end of the conveyor belt 1 32 is provided with a conveyor belt 2 33. The width of the conveyor belt 2 33 is smaller than that of the conveyor belt 1 32. The lower end of the conveyor belt 2 33 is connected to a return frame 34, and the output end of the return frame 34 is fixedly connected to the top of the guide frame 31.

[0047] When the movable rack 13 moves, the push plate 14 pushes the toothbrush on the conveyor belt 11 into the storage rack 17, and the movable rack 13 will synchronously move to the bottom of the cutting assembly 20. The guide frame 31 is used to send the cut toothbrushes to conveyor belt 1 32 and conveyor belt 2 33. When conveyor belt 2 33 transports the toothbrushes, it can screen the toothbrushes facing different directions into the return frame 34 and send them back to the guide frame 31.

[0048] It should be noted that the inner cavity of the guide frame 31 is an inclined bottom plate, the inclination is preferably greater than 10 degrees, and the bottom end of the inclination is located at the outlet of the guide frame 31. The conveyor belt 1 32 is a crawler belt assembled with an upward inclination, and the outer surfaces of the conveyor belt 11, the conveyor belt 1 32 and the conveyor belt 2 33 are all provided with convex strips for transporting toothbrushes.

[0049] Here, the conveyor belt 11, the conveyor belt 1 32 and the conveyor belt 2 33 are all externally provided with a drive module and a control module for controlling the speed and start and stop of their operation. Preferably, in order to ensure the unloading effect of the guide frame 31 and the return frame 34, a vibration motor can be installed under the guide frame 31 and the return frame 34, so that the guide frame 31 and the return frame 34 can be vibrated by the vibration motor, thereby improving the efficiency of the toothbrush sliding down and discharging;

[0050] An infrared sensor is installed on the outer wall of the conveyor belt 11 at the side of the push plate 14. When the push plate 14 moves, the infrared sensor will detect the movement of the push plate 14 and then control the conveyor belt 11 to stop running. After the push plate 14 is reset, the conveyor belt 11 is controlled to move again to achieve automatic control of the conveyor belt 11.

[0051] The width of conveyor belt 2 33 is smaller than that of conveyor belt 1 32, and its width is preferably 40% to 45% of conveyor belt 1 32, and conveyor belt 2 33 is tilted, and its side close to the center of conveyor belt 1 32 is tilted upward, and the tilt angle is preferably 3° to 5°, so that when the toothbrushes on conveyor belt 2 33 are transported, the toothbrushes with the end with greater gravity on conveyor belt 2 33 can rely on the tilt angle to fit above conveyor belt 2 33, while the toothbrushes with the end with greater gravity on the outside of conveyor belt 2 33 will fall downward due to gravity, thereby achieving screening.

[0052] In this embodiment, during use, the conveyor belt 11 transports the injection-molded toothbrushes toward the push plate 14. The movable frame 13 then drives the push plate 14 and the collection cover 15 to move. The push plate 14 pushes the toothbrushes below the cutting assembly 20, while the collection cover 15 moves below the cutting assembly 20 to collect waste. The cutting assembly 20 then cuts and polishes the toothbrushes. After cutting, the collection cover 15 is retracted, allowing the toothbrushes to fall downward into the guide frame 31. The conveyor belt 1 32 then transports the toothbrushes upward to the conveyor belt 2 33. At this time, the toothbrushes with their center of gravity facing the outside of the conveyor belt 2 33 will fall into the return frame 34 due to gravity and flow back to the guide frame 31 for further transport.

[0053] Next, please refer to Figures 2 to 4 An additional chassis is provided below the conveyor belt 11, and the guide frame 31, conveyor belt 1 32, conveyor belt 2 33 and return frame 34 are all installed on the additional chassis. The conveying assembly 10 also includes a pneumatic rod 12, which is fixedly installed below the conveyor belt 11, and the output end of the pneumatic rod 12 is fixedly connected to the movable frame 13. A collecting box 16 is fixedly installed on the additional chassis below the conveyor belt 11, and an inlet is provided at the upper end of the collecting box 16. The discharge outlet at the lower end of the collecting cover 15 is movably sleeved in the inlet at the upper end of the collecting box 16.

[0054] The lower end of the conveyor belt 11 is fixedly connected to two sets of limiting long rods, and both ends of the collection cover 15 are slidably connected to the outer ring of the limiting long rods. The collection cover 15 is a triangular hollow cover, and the side with the largest surface area is close to the conveyor belt 11 and is provided with a material receiving port. The lower end of the inclined part of the bottom surface is provided with a discharge port, and a pipe is fixedly installed at the position of the discharge port at the lower end, and the pipe is movably connected to the inlet at the upper end of the collection box 16;

[0055] Preferably, the width of the upper entrance of the collection box 16 is greater than the width of the conveyor belt 11, so that when the push plate 14 pushes the toothbrush out of the conveyor belt 11, the collection cover 15 will also move synchronously to the bottom of the cutting assembly 20 to receive the waste generated during slitting;

[0056] The collecting box 16 is hinged with a box door to facilitate subsequent recycling of waste materials.

[0057] In this embodiment, when the toothbrush is transported by conveyor belt 11 to the position of push plate 14, pneumatic rod 12 drives movable frame 13 and push plate 14 to move, pushing the toothbrush backward. Simultaneously, movable frame 13 drives collection cover 15 to the bottom of the toothbrush, allowing waste generated during toothbrush slitting to fall into collection cover 15 and flow into collection box 16 for collection. After slitting is completed, pneumatic rod 12 resets, driving push plate 14 to reset and wait for the second push. Collection cover 15 also resets to avoid affecting the unloading of toothbrush.

[0058] Next, please refer to Figures 5 and 6Two groups of storage racks 17 are fixedly connected to one side of the conveyor belt 11 close to the cutting assembly 20, and the two groups of storage racks 17 are installed symmetrically with each other. Pneumatic rods 18 are fixedly installed at the lower ends of the two groups of storage racks 17, and clamping racks 19 are fixedly connected to the output ends of the pneumatic rods 18. The clamping racks 19 are slidably connected to the lower ends of the storage racks 17.

[0059] It should be noted that the clamping frame 19 is composed of two groups of cylindrical tubes and two groups of long plates, wherein the cylindrical tubes are slidably connected to the storage frame 17, the long plate at the lower end is connected to the pneumatic rod 18, and the upper end of the long plate at the upper end is fixedly connected to a non-slip pad, and the inner cavity of the storage frame 17 and the side opposite to the upper end of the long plate are also fixedly connected to the non-slip pad. Here, the material of the non-slip pad is preferably rubber, and the purpose is to use the two groups of non-slip pads to clamp the cut toothbrush to prevent the toothbrush from slipping and displacement during the cutting process, which affects the cutting effect;

[0060] The height of the lower end of the inner cavity of the storage rack 17 is lower than the height of the upper end of the conveyor belt 11. When the clamping rack 19 is completely lowered and fits against the lower end of the inner cavity of the storage rack 17, the height of the upper end of the clamping rack 19 is flush with the height of the upper end of the conveyor belt 11, so that the push plate 14 can push the toothbrush directly to the upper end of the clamping rack 19 for easy clamping.

[0061] The collecting cover 15 cannot contact the pneumatic rod 18, so as to prevent the pneumatic rod 18 from affecting the movement of the collecting cover 15;

[0062] The storage rack 17 is fixedly connected to the rear side of the conveyor belt 11 through a triangular bracket, and a plurality of sets of hole grooves (not shown in the figure) are reserved on the rear side of the conveyor belt 11. The purpose is to control the spacing between the two sets of storage racks 17 by adjusting the installation position of the storage rack 17, so as to cope with toothbrushes of different lengths.

[0063] In this embodiment, after the push plate 14 pushes the injection-molded toothbrush into the storage rack 17, the pneumatic rod 18 operates to push the clamping frame 19 upward, clamping the toothbrush between the clamping frame 19 and the upper end of the inner cavity of the storage rack 17, thereby stably clamping the toothbrush. After the toothbrush is cut, the clamping is released and the toothbrush is allowed to fall freely.

[0064] Next, please refer to Figures 6 and 7The cutting assembly 20 includes an electric guide rail 21, which is installed on the rear side of the conveyor belt 11 through an assembly bracket (the electric guide rail 21 is a common X-axis electric drive guide rail in the prior art, which will not be described in detail here). An electric push rod 22 is installed at the lower end of the electric push rod 22. A placement rack 23 is fixedly installed at the lower end of the electric push rod 22. The inner cavity of the placement rack 23 is slidably connected to two groups of tool holders 24. The inner cavities of the two groups of tool holders 24 are rotatably connected to blades 25 through ball bearings. A motor 26 is fixedly installed on the outside of the placement rack 23. The output shaft of the motor 26 passes through the placement rack 23 and is fixedly connected to a drive shaft 27. The outer ring of the drive shaft 27 passes through the two groups of tool holders 24 and is slidably connected to the center of the two groups of blades 25. The upper ends of the two groups of tool holders 24 are slidably connected to positioning bolts 28, which are threadedly connected to the upper end of the placement rack 23.

[0065] There are multiple sets of positioning slots above the placement rack 23, and the positioning bolts 28 are slidably connected in the slots, in order to use the positioning bolts 28 to fix the tool holder 24 at different positions, so as to facilitate the adjustment of the distance between the two sets of tool holders 24 to cope with toothbrushes of different widths.

[0066] The outer edge of the blade 25 is a cutting edge, and the inner ring parts of the two sets of blades 25 away from each other are fixedly connected with grinding sandpaper. The purpose is that during the slitting process, the grinding sandpaper on the inner ring of the blade 25 can be used to grind the toothbrush after slitting to avoid burrs on the surface of the toothbrush after slitting, which affects the product quality.

[0067] It should be noted that the inner cavity of the placement rack 23 is provided with a limit guide rod, and the two sets of tool holders 24 are slidably connected to the outer ring of the limit guide rod, thereby limiting the range of movement of the tool holders 24 and improving stability;

[0068] The centers of the two sets of blades 25 are each provided with a hexagonal through slot, and the drive shaft 27 is a long hexagonal rod, which is designed to drive the blades 25 to rotate using the drive shaft 27 and enable the blades 25 to slide on the outer ring of the drive shaft 27;

[0069] The side of the placement rack 23 is detachable to facilitate subsequent blade replacement operations;

[0070] Preferably, the height of the lower end of the outer edge of the blade 25 is higher than the height of the lower end of the placement rack 23 to prevent the placement rack 23 from affecting the movement of the blade 25 during slitting.

[0071] In this embodiment, after the injection-molded toothbrush is clamped and fixed by the clamping frame 19, the electric push rod 22 pushes the placement frame 23 down so that the blade 25 is at the same height as the toothbrush. At this time, the motor 26 runs, driving the drive shaft 27 and the blade 25 to rotate, and then the electric guide rail 21 runs, driving the blade 25 to move toward the position of the toothbrush. The toothbrush is cut and polished by the rotating blade 25, and then the blade 25 is reset, and the cut toothbrush is polished again to achieve rapid cutting of the toothbrush.

[0072] Please refer again Figures 9 and 10 The guide assembly 30 also includes a screw rod 36, which is threadedly connected to the middle part of the inner cavity of the guide frame 31. The lower end of the screw rod 36 is rotatably connected to a blocking rod 37 through a ball bearing. The blocking rod 37 is movably sleeved in the inner cavity at the outlet of the guide frame 31 and is located above the conveyor belt 32.

[0073] A mounting plate is fixedly connected to the middle of the outlet position at the lower end of the guide frame 31, and the screw rod 36 is threadedly connected to the mounting plate. Both sides of the upper end of the blocking rod 37 are fixedly connected to limit rods, and the two sets of limit rods are slidably connected to the mounting plate in the inner cavity of the guide frame 31.

[0074] It should be noted that a handle is fixedly connected to the upper end of the screw rod 36, which is convenient for controlling the height of the blocking rod 37 by rotating the screw rod 36, and thus controlling the height of the toothbrush that can pass through the conveyor belt 1 32;

[0075] Here, the blocking rod 37 is located at the upper end of the conveyor belt 1 32. The gaps between the ridges on the top surface of the conveyor belt 1 32 only allow one toothbrush to lie inside, while a toothbrush facing vertically will be located above the ridges. When the toothbrushes are transported on the conveyor belt 1 32, the toothbrush lying between the ridges will pass through the blocking rod 37 smoothly, while the toothbrush lying vertically above the ridges will be blocked by the blocking rod 37 and cannot pass through.

[0076] Preferably, in order to ensure that the toothbrushes can still be stored in the gaps between the convex strips in the conveyor belt 33 when they are transported to the conveyor belt 33, a screw rod 36 and a blocking rod 37 compatible with it can be installed on the conveyor belt 33, so that the toothbrushes will be blocked by the blocking rod 37 compatible with the conveyor belt 33 during transportation, so that only the toothbrushes stored in the gaps between the convex strips can pass through the blocking rod 37, and the toothbrushes located on the convex strips will fall into the gaps between the convex strips through limiting and pushing, thereby avoiding the toothbrushes being located above the convex strips during screening and causing tilting, which affects the accuracy of screening.

[0077] In this embodiment, when the toothbrush falls into the guide frame 31 and is transported by the conveyor belt 32, the screw rod 36 is driven to rotate, pushing the blocking rod 37 to descend, so that the distance between the lower end of the blocking rod 37 and the convex strips on the surface of the conveyor belt 32 is smaller than the height of the toothbrush. At this time, the toothbrush lying in the gap between the convex strips of the conveyor belt 32 can pass smoothly under the blocking rod 37, while the vertical toothbrush lying on the convex strips will be blocked by the blocking rod 37 and cannot pass through, thereby screening the toothbrushes in the vertical and horizontal directions.

[0078] Please refer again Figures 11 to 13 The guide assembly 30 also includes a pneumatic rod three 38, which is fixedly installed in the middle of the outer side of the conveyor belt 2 33, and the output end of the pneumatic rod three 38 passes through the outer side of the conveyor belt 2 33 and is placed above the conveying part of the conveyor belt 2 33. A guide plate 39 is fixedly connected to the output end of the pneumatic rod three 38, and two sets of limit rods are fixedly connected to the end of the guide plate 39 close to the pneumatic rod three 38, and the limit rods are slidably connected to the conveyor belt 2 33.

[0079] The guide end of the conveyor belt 2 33 is provided with a discharge belt 35, which is used to receive the screened toothbrushes and transport the screened toothbrushes to the subsequent processing links. At the same time, the conveyor belt 1 32 is also provided with a matching guide plate 39 and a pneumatic rod 38 (such as Figure 8 As shown), when necessary, the guide plate 39 mounted on the conveyor belt 1 32 can be driven to move, pushing the toothbrush close to the conveyor belt 2 33, so that toothbrushes of different lengths and sizes can be pushed and limited by the guide plate 39 mounted on the conveyor belt 1 32 when transported in the conveyor belt 1 32, so that they are always close to the direction of the conveyor belt 2 33, which is convenient for subsequent screening;

[0080] The entrance and exit of the conveyor belt 2 33 are both provided with triangular baffles (such as Figure 8 As shown), the triangular baffle is not fixedly connected to the rolling track portion, so that when the toothbrush leaves the conveyor belt 1 32, the baffle can be used to limit the position of the toothbrush so that the toothbrush can be stably placed in the conveyor belt 2 33, and when the toothbrush is transported out of the conveyor belt 2 33, the baffle can also be used to stably place the toothbrush on the discharge belt 35;

[0081] In this embodiment, the pneumatic rod 12, the pneumatic rod 2, and the pneumatic rod 3 are all connected to a control module and an air pump (not shown in the figure, and this is a common technical structure in the prior art, so no further description is given here), which is used to control the extension and retraction process;

[0082] The guide plate 39 is provided with a slope at one end close to the conveyor belt 1 32, and the slope is placed above the end of the conveyor belt 1 32;

[0083] Here, when the toothbrush located in the conveyor belt 1 32 is being transported upward, the guide plate 39 will use the slope of its end to control the displacement of the toothbrush during transportation, so that when the toothbrush is transported to the conveyor belt 2 33, it will fit on the guide plate 39, and the guide plate 39 can be driven by the pneumatic rod 38 to move at the upper end of the conveyor belt 2 33, so that the conveyor belt 2 33 can screen toothbrushes of different models and sizes, and avoid toothbrushes that are too short (such as children's toothbrushes) from remaining in the conveyor belt 2 33 no matter which side the heavier end faces, and when the shorter toothbrush is transported to the top of the conveyor belt 2 33, it will also fit on the guide plate 39 due to the guidance of the slope of the guide plate 39, so as to avoid the guide plate 39 blocking the conveyor belt 2 33 after displacement, resulting in the toothbrush transported by the conveyor belt 1 32 being blocked, affecting the transportation.

[0084] In this embodiment, after the toothbrushes are transported via conveyor belt 1 32 to conveyor belt 2 33, due to the relatively short width of conveyor belt 2 33, toothbrushes with their centers of gravity facing outward from conveyor belt 2 33 will fall downward due to gravity and fall off conveyor belt 2 33. However, toothbrushes with their centers of gravity facing inward from conveyor belt 2 33 will remain on conveyor belt 2 33 due to their centers of gravity being biased toward the inside of conveyor belt 2 33 and will be transported there. The toothbrushes screened by conveyor belt 2 33 will be discharged via discharge belt 35. When screening shorter toothbrushes, pneumatic rod 38 will move guide plate 39 to shorten the conveying area on conveyor belt 2 33, preventing toothbrushes that are too short from being transported by conveyor belt 2 33 regardless of which side their centers of gravity are facing, thus affecting the screening effect.

[0085] The working principle of the present invention is as follows: when in use, the conveyor belt 11 transports the injection-molded toothbrush toward the push plate 14, and then the pneumatic rod 12 drives the movable frame 13 and the push plate 14 to move, pushing the toothbrush into the storage rack 17. At this time, the pneumatic rod 21 operates to push the clamping frame 19 upward, clamping the toothbrush at the upper end of the inner cavity of the clamping frame 19 and the storage rack 17, stably clamping the toothbrush. At the same time, the movable frame 13 also drives the collection cover 15 to the bottom of the toothbrush, so that the waste generated when the toothbrush is cut can fall into the collection cover 15 and flow into the collection box 16 for collection. At this time, the electric push rod 22 pushes the placement frame 23 down, so that the blade 25 is at the same height as the toothbrush. Then the motor 26 drives the drive shaft 27 and the blade 25 to rotate, and through the operation of the electric guide rail 21, drives the blade 25 to move to the position of the toothbrush for cutting and grinding. Then the blade 25 resets and grinds the cut toothbrush a second time, realizing rapid cutting of the toothbrush. The processed toothbrushes are released from the clamping state and fall into the guide frame 31, where they are transported via the first conveyor belt 32. At this point, the screw rod 36 is driven to rotate, pushing the blocking rod 37 downward, so that the distance between the lower end of the blocking rod 37 and the ridges on the surface of the first conveyor belt 32 is less than the height of the toothbrush. This allows the toothbrush lying between the ridges of the first conveyor belt 32 to pass smoothly under the blocking rod 37, while the toothbrush lying upright on the ridges will be blocked by the blocking rod 37 and unable to pass. After the toothbrush is transported to the second conveyor belt 33, due to the shorter width of the second conveyor belt 33, the toothbrush with the center of gravity facing the outside of the second conveyor belt 33 will fall downward due to gravity and fall off the second conveyor belt 33. The toothbrush with the center of gravity facing the inside of the second conveyor belt 33 will remain on the second conveyor belt 33 due to its center of gravity being biased inside the second conveyor belt 33, and will be transported there. The toothbrush screened by the second conveyor belt 33 will be discharged via the discharge belt 35.

[0086] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A slitting device for injection molded toothbrush production, characterized by: include: The conveying assembly includes a conveyor belt, a movable frame is slidably connected to the lower part of the conveyor belt, a push plate is fixedly connected to the upper end of the movable frame, and a collection cover is fixedly connected to the lower end; The cutting assembly is assembled on the rear side of the conveyor belt, and a storage rack is provided below the cutting assembly; The guide assembly includes a guide frame, which is assembled on the rear side of the conveyor belt. The outlet end of the guide frame is provided with a conveyor belt 1, and the guide end of the conveyor belt 1 is provided with a conveyor belt 2, and the width of the conveyor belt 2 is smaller than that of the conveyor belt 1. The lower end of the conveyor belt 2 is connected to a return frame, and the output end of the return frame is fixedly connected to the top of the guide frame; the width of the conveyor belt 2 is smaller than that of the conveyor belt 1, and the conveyor belt 2 is inclined, and the side close to the center of the conveyor belt 1 is inclined upward, so that when the toothbrushes on the conveyor belt 2 are transported, the toothbrushes on the conveyor belt 2 with a larger gravity end can rely on the angle of inclination to fit above the conveyor belt 2, while the toothbrushes on the outer side of the conveyor belt 2 with a larger gravity end will fall downward due to gravity, thereby achieving screening; When the mobile rack moves, the push plate pushes the toothbrushes on the conveyor belt into the storage rack, and the mobile rack will simultaneously move to the bottom of the cutting assembly. The guide frame is used to send the cut toothbrushes to conveyor belts 1 and 2, so that toothbrushes facing different directions can be screened into the return frame and sent back to the guide frame. The guide assembly also includes a screw rod, which is threadedly connected to the middle of the inner cavity of the guide frame, and the lower end of the screw rod is rotatably connected to a blocking rod, which is movably sleeved in the inner cavity at the outlet of the guide frame and is located above the conveyor belt. A mounting plate is fixedly connected to the middle of the outlet position at the lower end of the guide frame, and the screw is threadedly connected to the mounting plate. Both sides of the upper end of the blocking rod are fixedly connected to limit rods, and the two sets of limit rods are slidably connected to the mounting plate of the inner cavity of the guide frame; The guide assembly also includes a pneumatic rod three, which is fixedly installed in the middle of the outer side of the conveyor belt two, and the output end of the pneumatic rod three passes through the outer side of the conveyor belt two and is placed above the transport part of the conveyor belt two. The output end of the pneumatic rod three is fixedly connected to a guide plate, and the end of the guide plate close to the pneumatic rod three is fixedly connected to two sets of limit rods, and the limit rods are slidably connected to the conveyor belt two.

2. The slitting device for injection molded toothbrush production according to claim 1, characterized in that: An additional chassis is provided below the conveyor belt, and the guide frame, conveyor belt 1, conveyor belt 2 and return frame are all installed on the additional chassis. The conveying assembly also includes a pneumatic rod 1, which is fixedly installed below the conveyor belt, and the output end of the pneumatic rod 1 is fixedly connected to the mobile frame. A collecting box is fixedly installed on the additional chassis below the conveyor belt, and an inlet is provided at the upper end of the collecting box, and the discharge outlet at the lower end of the collecting cover is movably sleeved in the inlet at the upper end of the collecting box.

3. The slitting device for injection molded toothbrush production according to claim 2, characterized in that: The lower end of the conveyor belt is fixedly connected to two sets of limiting long rods, and both ends of the collecting cover are slidably connected to the outer ring of the limiting long rods. The collecting cover is a triangular hollow cover, and the side with the largest surface area is close to the conveyor belt and is provided with a material receiving port. The lower end of the inclined part of the bottom surface is provided with a discharge port, and a pipe is fixedly installed at the position of the discharge port at the lower end, and the pipe is movably sleeved in the inlet at the upper end of the collecting box.

4. The slitting device for producing injection molded toothbrushes according to claim 2, characterized in that: Two sets of storage racks are fixedly connected to one side of the conveyor belt close to the cutting assembly, and the two sets of storage racks are installed symmetrically with each other. Pneumatic rod 2 is fixedly installed at the lower end of the two sets of storage racks, and a clamping rack is fixedly connected to the output end of the pneumatic rod 2, and the clamping rack is slidably connected to the lower end of the storage rack.

5. The slitting device for producing injection molded toothbrushes according to claim 2, characterized in that: The cutting assembly includes an electric guide rail, which is installed on the rear side of the conveyor belt through an assembly bracket. An electric push rod is installed at the lower end of the electric guide rail, and a placement rack is fixedly installed at the lower end of the electric push rod. The inner cavity of the placement rack is slidably connected to two sets of tool holders, and the inner cavities of the two sets of tool holders are rotatably connected to the blades through ball bearings. A motor is fixedly installed on the outer side of the placement rack, and the output shaft of the motor passes through the placement rack and is fixedly connected to the drive shaft. The outer ring of the drive shaft passes through the two sets of tool holders and is slidably connected to the center of the two sets of blades. The upper ends of the two sets of tool holders are slidably connected to positioning bolts, and the positioning bolts are threadedly connected to the upper end of the placement rack.

6. The slitting device for producing injection molded toothbrushes according to claim 5, characterized in that: A plurality of positioning slots are provided above the placement rack, and positioning bolts are slidably connected in the slots.

7. The slitting device for producing injection molded toothbrushes according to claim 6, characterized in that: The outer edges of the blades are cutting edges, and inner circle parts of the two sets of blades that are away from each other are fixedly connected with grinding sandpaper.

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