Cutting mechanism of SMC sheet machine for circular well lid production

Abstract

The application relates to the cutting field and particularly relates to a cutting mechanism of an SMC sheet machine for circular well lid production, which comprises a sheet mechanism for folding and storing the SMC sheet after molding, the sheet mechanism being fixedly installed on the outer end face of a rack body; a transmission mechanism for conveying and guiding the long strip-shaped glass fibers, the transmission mechanism being arranged on the end of the rack body far from the sheet mechanism; and a cutting device for cutting the long strip-shaped glass fibers to a fixed length, the cutting device being arranged at the central position in the rack body. The cutting mechanism of the SMC sheet machine for circular well lid production can convey another batch of long strip-shaped glass fibers onto the conveying belt through the pushing equipment by starting the second electric push rod, so that the function of reducing the working time and improving the efficiency by using the form of alternate feeding and conveying is achieved.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, specifically to a cutting mechanism for an SMC sheet machine used in the production of round manhole covers. Background Technology

[0002] Sheet molding machines are core equipment for producing new thermosetting molding plastics. By adding thickeners, fillers, release agents, and curing agents to polyester resin, followed by a glass fiber impregnation process, a sandwich structure with double-sided film covering is formed, producing sheet molding compounds (SMC sheets). This equipment includes horizontal three-roll single-roll extrusion, dual-roll co-extrusion, and skew multi-layer co-extrusion types, and is widely used in transportation, construction, and electrical appliance industries, extending to food packaging, electronic products, medical devices, and other industrial applications.

[0003] The existing SMC sheet cutting mechanism has the following problems: 1. The separate feeding and conveying of the equipment will greatly increase the labor time, and there will also be the problem that the glass fiber has been cut before the glass fiber has been conveyed; 2. The glass fiber will curl up during the conveying process, and the different friction of the glass fiber during the cutting process will lead to different output lengths, ultimately resulting in different cutting lengths. Summary of the Invention

[0004] The present invention provides a cutting mechanism for an SMC sheet machine used in the production of round manhole covers, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting mechanism for an SMC sheet machine for producing round manhole covers, comprising a sheet mechanism for folding and storing the molded SMC sheet, wherein the sheet mechanism is fixedly installed on the outer end face of the machine frame.

[0006] A conveying mechanism for conveying and guiding long strips of glass fiber, the conveying mechanism being disposed at the end of the frame body away from the sheet mechanism;

[0007] A cutting device for cutting long strips of glass fiber to a fixed length, the cutting device being located at the center inside the frame body;

[0008] The sheet material mechanism includes a conveyor belt assembly, which is disposed inside the frame body. A flattening roller is rotatably mounted inside the frame body, and the flattening roller is used to flatten the sheet material to form a sandwich structure with double-sided film covering.

[0009] A support frame is fixedly installed on the outer end face of the frame body, and stretching rollers are rotatably installed inside the support frame body, wherein the stretching rollers are used for stretching the sheet material.

[0010] Preferably, a rotating shaft is fixedly installed on the top of the support frame via a support, and a swing frame is rotatably installed on the outside of the rotating shaft. The reciprocating swing of the swing frame allows the sandwich sheet to be folded and stored.

[0011] Both the conveyor belt assembly and the swing frame are controlled by external power equipment.

[0012] Preferably, the transmission mechanism includes a conveyor table, which is fixedly installed on the top of the frame. A first rail and a second rail are fixedly installed on the outer end face of the conveyor table. A first electric push rod is fixedly installed on the outer end face of the first rail. The output end of the first electric push rod is fixedly connected to a first feeding frame, which is slidably adapted to the outside of the first rail.

[0013] Preferably, a second electric push rod is fixedly installed on the outer end face of the second rail, and a second feeding frame is fixedly connected to the output end of the second electric push rod. The second feeding frame is slidably adapted to the outside of the second rail.

[0014] The No. 1 feeding frame and the No. 2 feeding frame alternate laterally to feed and convey long strips of glass fiber.

[0015] Preferably, a servo motor is fixedly installed on the outer side of the conveyor table, and the output end of the servo motor is connected to a transmission roller through a coupling. The transmission roller is rotatably installed inside the conveyor table through bearings, and a conveyor belt is connected to the center of the transmission roller.

[0016] The conveyor belt is used for conveying and processing long strips of glass fiber.

[0017] Preferably, the cutting device includes a guide table, which is fixedly installed at the center of the top of the frame body. The guide table is used to pull the cut glass fiber towards the conveyor belt assembly.

[0018] The bottom of the guide platform is hollowed out, and there is a height difference between it and the conveyor belt assembly, so that the sheet is conveyed forward along the center of the top of the frame cavity and the conveyor belt assembly.

[0019] Preferably, a cutting table is fixedly installed on the end face of the conveyor table, a Z-shaped plate is fixedly connected to the top of the cutting table, a hydraulic rod is fixedly installed on the top of the inner cavity of the Z-shaped plate, a knife holder is fixedly connected to the output end of the hydraulic rod, and a cutting knife is bolted to the bottom of the knife holder.

[0020] Preferably, a vacating plate is fixedly installed on the outer side of the guide platform, and flipping blocking plates are rotatably installed on both sides of the inner cavity of the vacating plate through support shaft seats, and a return spring is fixedly connected to the bottom of the flipping blocking plate;

[0021] A cleaning scraper is used to remove glass fibers adhering to the surface of the cutting blade, and is fixedly installed inside the empty plate. The cleaning scraper is fixedly connected to the bottom end of the return spring.

[0022] Preferably, a fixed shaft is connected to the outer side of the conveyor table via a bearing seat, and a pressure roller and a second gear are fixedly connected to the outer side of the fixed shaft. The outer side of the second gear meshes with a first gear, and the center of the first gear is fixedly connected to the transmission roller.

[0023] A third gear is provided on the side of the second gear away from the first gear, and the second gear and the third gear do not mesh or transmit power.

[0024] Preferably, a toothed connecting rod is fixedly connected to the outer side of the third gear, and a fourth gear is fixedly connected to the end of the toothed connecting rod away from the third gear. A first toothed connecting shaft is rotatably adapted at the center of both the fourth gear and the third gear, and the first toothed connecting shaft is fixedly connected to the inner side of the cutting table.

[0025] A bearing is welded to the outer side of the fourth gear. An electric drive rod is fixedly connected to the outer ring of the first bearing. The end of the electric drive rod away from the first bearing is fixedly installed on the inner side of the cutting table. The fourth gear is connected to the inner ring of the first bearing.

[0026] Preferably, a No. 2 gear coupling is fixedly installed on the inner side of the cutting table, and a No. 5 gear is rotatably adapted to the outer side of the No. 2 gear. The outer side of the No. 5 gear meshes with the No. 2 gear. A No. 2 bearing is welded to the outer side of the No. 5 gear. A No. 2 curved rod is fixedly connected to the bottom of the outer ring of the No. 2 bearing. The end of the No. 2 curved rod away from the No. 2 bearing is fixedly connected to the bottom of the outer ring of the No. 1 bearing.

[0027] Preferably, a connecting strip is fixedly connected to the outer side of the tool holder, a first rack is fixedly connected to the end of the connecting strip away from the tool holder, a first bent rod is fixedly connected to the bottom of the first rack, and a second rack is fixedly connected to the end of the first bent rod away from the first rack.

[0028] One of the racks meshes with the fifth gear for transmission, while the second rack meshes with the fourth gear for transmission.

[0029] The outer side of the first rack is slidably fitted with a first limiting rod via a plate, and the outer side of the second rack is slidably fitted with a second limiting rod via a plate. Both the first and second limiting rods are fixedly installed on the top of the frame.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. By activating the No. 2 electric push rod, the No. 2 feeding frame, which is welded to its output end, will transport another batch of long strips of glass fiber onto the conveyor belt through the pushing equipment. This achieves the effect of reducing labor time and improving efficiency by using alternating feeding and conveying methods.

[0032] 2. The long glass fibers being conveyed forward by the conveyor belt are squeezed by the pressure rollers. The pressure rollers only flatten the raised parts of the long glass fibers without causing them to break due to compression. In addition, the pressure rollers also serve to periodically and uniformly convey the long glass fibers forward.

[0033] 3. The meshing transmission between gear No. 4 and rack No. 2 reduces the cutting speed of the cutting blade, but the conveying speed of the conveyor belt and pressure rollers for the long glass fiber remains unchanged, thus ensuring that the cutting blade cuts the long glass fiber into segments and feeds them onto the sheet.

[0034] 4. Through the meshing transmission between gear number five and rack number one, the cutting speed of the cutting blade reciprocating up and down is greatly increased, thereby enabling the cutting blade to cut long strips of glass fiber into small pieces and feed them onto the sheet.

[0035] 5. The cleaning scraper removes the glass fiber debris adhering to both sides of the cutting blade, thus preventing the debris from flying out and affecting the operator's breathing as well as the quality of the finished sheet. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the external structure of the cutting mechanism of an SMC sheet machine for producing round manhole covers according to the present invention.

[0037] Figure 2 This is a schematic diagram of the sheet material mechanism of the present invention.

[0038] Figure 3 This is a schematic diagram of the full cross-sectional structure of the sheet material mechanism of the present invention.

[0039] Figure 4 This is a schematic diagram of the transmission mechanism of the present invention.

[0040] Figure 5 This is a cross-sectional view of the first component of the transmission mechanism of the present invention.

[0041] Figure 6 This is a longitudinal cross-sectional schematic diagram of the second mechanism structure of the transmission mechanism of the present invention.

[0042] Figure 7This is a schematic diagram of the cutting device of the present invention.

[0043] Figure 8 This is a schematic diagram of the full cross-sectional structure of the cutting device of the present invention.

[0044] Figure 9 This is a cross-sectional enlarged structural diagram of the empty plate of the present invention.

[0045] Figure 10 This is a schematic diagram of the internal structure of the cutting device of the present invention.

[0046] Figure 11 This is a first-view structural schematic diagram of the internal components of the cutting device of the present invention.

[0047] Figure 12 This is a second-view structural schematic diagram of the internal components of the cutting device of the present invention.

[0048] Figure 13 This is a cross-sectional structural diagram of the internal components of the cutting device of the present invention.

[0049] In the picture:

[0050] 1. Frame body;

[0051] 2. Sheet material handling mechanism; 21. Conveyor belt assembly; 22. Flattening roller; 23. Support frame; 24. Stretching roller; 25. Rotary shaft; 26. Swing frame;

[0052] 3. Conveying mechanism; 31. Conveyor table; 32. Rail No. 1; 33. Electric push rod No. 1; 34. Feeding frame No. 1; 35. Rail No. 2; 36. Electric push rod No. 2; 37. Feeding frame No. 2; 38. Servo motor; 39. Drive roller; 30. Conveyor belt;

[0053] 4. Cutting device; 41. Guide table; 42. Cutting table; 43. Z-shaped plate; 44. Hydraulic rod; 45. Knife holder; 46. Cutting knife; 47. Empty plate; 48. Flipping blocking plate; 49. Return spring; 40. Cleaning scraper; 401. Fixed shaft; 402. Pressure roller; 403. Gear No. 1; 404. Gear No. 2; 405. Gear No. 3; 406. Gear connecting rod; 407. Gear No. 4; 408. Gear No. 1 connecting shaft; 409. Bearing No. 1; 400. Electric drive rod; 41a. Gear No. 2 connecting shaft; 42a. Gear No. 5; 43a. Bearing No. 2; 44a. Rack No. 1; 45a. Connecting bar; 46a. Bending rod No. 1; 47a. Bending rod No. 2; 48a. Rack No. 2; 49a. Limiting rod No. 1; 40a. Limiting rod No. 2. Detailed Implementation

[0054] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0055] Please see Figures 1 to 13 The present invention provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a sheet mechanism 2 for folding and storing the molded SMC sheet, and the sheet mechanism 2 is welded to the outer end face of the frame body 1.

[0056] The conveying mechanism 3 is used to transport and guide long strips of glass fiber. The conveying mechanism 3 is located at the end of the frame body 1 away from the sheet mechanism 2.

[0057] Cutting device 4 is used to cut long strips of glass fiber to a fixed length. Cutting device 4 is located at the center inside the frame body 1.

[0058] The sheet material mechanism 2 includes a conveyor belt assembly 21, which is located inside the frame body 1. Inside the frame body 1, a flattening roller 22 is rotatably mounted via bearings. The flattening roller 22 is used to flatten the sandwich structure of the sheet material initially forming a double-sided covered film.

[0059] A support frame 23 is welded to the outer end face of the frame body 1. The support frame 23 has a stretching roller 24 rotatably mounted inside through bearings. The stretching roller 24 is used for stretching the sheet material.

[0060] The top of the support frame 23 is welded with a pivot 25 via a support. A swing frame 26 is rotatably mounted on the outside of the pivot 25. The reciprocating swing of the swing frame 26 allows the sandwich sheet to be folded and stored.

[0061] Both the conveyor belt assembly 21 and the swing frame 26 are controlled by external electrical equipment. The sheet covered with glass fiber moves forward through the conveyor belt assembly 21 and is compacted by the flattening roller 22. Then, the sheet passes through two stretching rollers 24 in an S-shape and finally rests on the swing frame 26. The swing frame 26 is then periodically deflected back and forth by an external electric drive device, causing the sheet that slides off the swing frame 26 to be folded and stored.

[0062] like Figure 4 , Figure 5 and Figure 6 As shown, the transmission mechanism 3 includes a conveyor table 31, which is welded to the top of the frame body 1. The outer end face of the conveyor table 31 is welded with a first rail 32 and a second rail 35 respectively. The outer end face of the first rail 32 is welded with a first electric push rod 33. The output end of the first electric push rod 33 is welded to a first feeding frame 34, which is slidably adapted to the outside of the first rail 32.

[0063] The outer end face of the second rail 35 is welded with the second electric push rod 36, and the output end of the second electric push rod 36 is welded with the second feeding frame 37. The second feeding frame 37 is slidably adapted to the outside of the second rail 35.

[0064] The first feeding frame 34 and the second feeding frame 37 alternate laterally to feed and convey long strips of glass fiber. The long strips of glass fiber are placed into the first feeding frame 34, and then the first electric push rod 33 is activated. This causes the first feeding frame 34, which is welded to its output end, to move along the first rail 32 towards the center of the frame 1. Then, an external pushing device (such as a telescopic cylinder) pushes the long strips of glass fiber from the first feeding frame 34 onto the conveyor belt 30. The first electric push rod 33 then retracts, resetting the first feeding frame 34. Immediately afterward, the second electric push rod 36 is activated, causing the second feeding frame 37, which is welded to its output end, to convey another batch of long strips of glass fiber onto the conveyor belt 30 via the pushing device. This alternating feeding and conveying method reduces labor time and improves efficiency.

[0065] A servo motor 38 is welded to the outside of the conveyor table 31. The output end of the servo motor 38 is connected to a transmission roller 39 through a coupling. The transmission roller 39 is rotatably installed inside the conveyor table 31 through bearings. The center of the transmission roller 39 is connected to a conveyor belt 30.

[0066] The conveyor belt 30 is used for conveying and processing long strips of glass fiber.

[0067] like Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, the cutting device 4 includes a guide table 41, which is welded to the center of the top of the frame body 1. The guide table 41 is used to pull the cut glass fiber towards the conveyor belt assembly 21.

[0068] The bottom of the guide table 41 is hollowed out, and there is a height difference between it and the conveyor belt assembly 21, so that the sheet is conveyed forward along the center of the top of the inner cavity of the frame body 1 and the conveyor belt assembly 21.

[0069] A cutting table 42 is welded to the end face of the conveyor table 31. A Z-shaped plate 43 is welded to the top of the cutting table 42. A hydraulic rod 44 is welded to the top of the inner cavity of the Z-shaped plate 43. A knife holder 45 is welded to the output end of the hydraulic rod 44. A cutting knife 46 is bolted to the bottom of the knife holder 45.

[0070] A blanking plate 47 is welded to the outside of the guide table 41. Both sides of the inner cavity of the blanking plate 47 are rotatably mounted with a flipping block plate 48 through a support seat. A return spring 49 is welded to the bottom of the flipping block plate 48.

[0071] The cleaning blade 40 is used to remove glass fibers adhering to the surface of the cutting blade 46 and is welded inside the empty plate 47. The cleaning blade 40 is welded to the bottom end of the return spring 49. After the cutting blade 46 has finished cutting the glass fibers, it will also squeeze the flipping stop plate 48 and extend into the empty plate 47 until it is rubbed by the two cleaning blades 40. The cutting blade 46 will continue to extend downward from the middle of the two cleaning blades 40. At this time, the cleaning blades 40 will remove the glass fiber debris adhering to both sides of the cutting blade 46, thereby preventing the debris from flying outward, which would affect the operator's breathing and the quality of the finished sheet. When the cutting blade 46 returns to its original position and moves upward, the flipping stop plate 48 will return to its initial inclined state under the action of the return spring 49.

[0072] A fixed shaft 401 is connected to the outer side of the conveyor table 31 via a bearing seat. A pressure roller 402 and a second gear 404 are welded to the outer side of the fixed shaft 401. The second gear 404 synchronizes the conveyor belt 30 with the pressure roller 402 to increase the stability and prevent skewing of the long glass fiber during transport. The outer side of the second gear 404 meshes with a first gear 403, the center of which is welded to a drive roller 39. When the long glass fiber is on the conveyor belt 30, the servo motor 38 is activated, causing the drive roller 39, connected to its output end via a coupling, to rotate the conveyor belt 30 forward (clockwise). The drive roller 39 also... The first gear 403 rotates clockwise, while the second gear 404, which meshes with the first gear 403, deflects counterclockwise. The second gear 404 is connected to the pressure roller 402 via a fixed shaft 401. Therefore, the pressure roller 402 rotates counterclockwise together with the second gear 404. At the same time, the long glass fiber conveyed forward by the conveyor belt 30 is squeezed by the pressure roller 402. The pressure roller 402 only flattens the raised part of the long glass fiber, without causing the glass fiber to break due to compression. In addition, the pressure roller 402 also plays a role in periodically and uniformly conveying the long glass fiber forward, avoiding uneven conveying lengths of each glass fiber due to friction.

[0073] A third gear 405 is provided on the side of the second gear 404 away from the first gear 403, and the second gear 404 and the third gear 405 do not mesh and transmit power.

[0074] A toothed connecting rod 406 is welded to the outside of gear 3 405. A gear 407 is welded to the end of the toothed connecting rod 406 away from gear 3 405. A gear 408 is rotatably adapted to the center of both gear 407 and gear 3 405. The gear 408 is welded to the inside of the cutting table 42.

[0075] A bearing 409 is welded to the outside of gear 407. An electric drive rod 400 is welded to the outer ring of bearing 409. The end of the electric drive rod 400 away from bearing 409 is welded to the inside of the cutting table 42. Gear 407 is connected to the inner ring of bearing 409.

[0076] The inner side of the cutting table 42 is welded with a No. 2 gear coupling shaft 41a. The outer side of the No. 2 gear coupling shaft 41a is rotatably adapted to a No. 5 gear 42a. The outer side of the No. 5 gear 42a meshes with the No. 2 gear 404. The outer side of the No. 5 gear 42a is welded with a No. 2 bearing 43a. The bottom of the outer ring of the No. 2 bearing 43a is welded with a No. 2 bending rod 47a. The end of the No. 2 bending rod 47a away from the No. 2 bearing 43a is welded to the bottom of the outer ring of the No. 1 bearing 409. By activating the hydraulic rod 44, it is connected to its output end. The blade holder 45 moves downward with the cutting blade 46 and cuts the long strip of glass fiber that is periodically conveyed forward by the pressure roller 402. The outer side of the blade holder 45 is welded to the first rack 44a through the connecting strip 45a. Therefore, the first rack 44a moves downward with the second rack 48a through the first bending rod 46a. At this time, the second rack 48a will mesh with the fourth gear 407 and move downward. At the same time, the blade holder 45 also moves downward with the cutting blade 46.

[0077] A connecting strip 45a is welded to the outer side of the tool holder 45. A first rack 44a is welded to the end of the connecting strip 45a away from the tool holder 45. A first bent rod 46a is welded to the bottom of the first rack 44a. A second rack 48a is welded to the end of the first bent rod 46a away from the first rack 44a. When the electric drive rod 400 is activated, the electric drive rod 400 is an electric telescopic rod with a telescopic function. This causes the first bearing 409 connected to its output end to move the fourth gear 407 outward along the first gear connecting shaft 408 without meshing with the second rack 48a. At the same time, the second rack 48a is in the blank position between the third gear 405 and the fourth gear 407. The third gear 405 is a spare gear. When the fourth gear 407 wears out, the third gear 405 can quickly take over the work of the fourth gear 407.

[0078] One rack 44a meshes with the fifth gear 42a, while the second rack 48a meshes with the fourth gear 407. The bottom of the outer ring of the first bearing 409 is connected to the outer ring of the second bearing 43a via the second bending rod 47a. Therefore, the second bearing 43a carries the fifth gear 42a outward along the second gear shaft 41a until the fifth gear 42a meshes with the first rack 44a. Through the meshing transmission between the fourth gear 407 and the second rack 48a, the cutting speed of the cutting blade 46 reciprocates, but the conveying speed of the conveyor belt 30 and the pressure roller 402 on the long glass fiber remains constant, thus ensuring that the cutting blade 46 cuts the long glass fiber into segments and feeds them onto the sheet material. Through the meshing transmission between the fifth gear 42a and the first rack 44a, the cutting speed of the cutting blade 46 reciprocating up and down is greatly increased, thereby enabling the cutting blade 46 to cut long strips of glass fiber into small pieces and put them onto the sheet.

[0079] A first limiting rod 49a is slidably fitted to the outer side of rack 44a via a plate, while a second limiting rod 40a is slidably fitted to the outer side of rack 48a via a plate. Both limiting rods 49a and 40a are welded to the top of the frame body 1. Furthermore, limiting rods 49a and 40a respectively serve to limit the movement of racks 44a and 48a.

[0080] In use, the present invention is as follows: First, long strips of glass fiber are placed into the first feeding frame 34. Then, the first electric push rod 33 is activated, causing the first feeding frame 34, which is welded to its output end, to move along the first rail 32 toward the center of the frame body 1. Then, the long strips of glass fiber are pushed from the first feeding frame 34 onto the conveyor belt 30 by an external pushing device. Then, the first electric push rod 33 is retracted, causing the first feeding frame 34 to reset. Immediately afterwards, the second electric push rod 36 is activated, causing the second feeding frame 37, which is welded to its output end, to transport another batch of long strips of glass fiber onto the conveyor belt 30 by a pushing device. When the long glass fiber is on the conveyor belt 30, the servo motor 38 is started, causing the transmission roller 39, which is connected to the output end of the servo motor 38 via a coupling, to rotate forward, that is, clockwise, along with the conveyor belt 30. The transmission roller 39 also drives the first gear 403 to rotate clockwise, while the second gear 404, which meshes with the first gear 403, rotates counterclockwise. The second gear 404 is connected to the pressure roller 402 via a fixed shaft 401, so the pressure roller 402 rotates counterclockwise together with the second gear 404. At the same time, the long glass fiber being conveyed forward by the conveyor belt 30 is squeezed by the pressure roller 402.

[0081] By activating the hydraulic rod 44, the blade holder 45 connected to its output end moves downward with the cutting blade 46, and cuts the long strip of glass fiber that is periodically conveyed forward by the pressure roller 402. The outer side of the blade holder 45 is welded to the first rack 44a through the connecting strip 45a. Therefore, the first rack 44a moves downward with the second rack 48a through the first bending rod 46a. At this time, the second rack 48a engages with the fourth gear 407 and moves downward. At the same time, the blade holder 45 also moves downward with the cutting blade 46.

[0082] When the electric drive lever 400 is activated, the first bearing 409 connected to its output end moves outward along the first gear shaft 408, carrying the fourth gear 407, without engaging with the second rack 48a. Simultaneously, the second rack 48a is positioned in the gap between the third gear 405 and the fourth gear 407. Furthermore, the bottom of the outer ring of the first bearing 409 is connected to the outer ring of the second bearing 43a via the second bending rod 47a. Therefore, the second bearing 43a moves outward along the second gear shaft 41a, carrying the fifth gear 42a, until the fifth gear 42a engages with the first rack 44a. After the cutting blade 46 finishes cutting the glass fiber, it will also squeeze the flip-over blocking plate 48 and extend into the empty plate 47 until it is rubbed by the two cleaning blades 40. The cutting blade 46 will continue to extend downward from the middle of the two cleaning blades 40. At this time, the cleaning blades 40 will remove the glass fiber debris adhering to both sides of the cutting blade 46. When the cutting blade 46 returns to its original position and moves upward, the flip-over blocking plate 48 will return to its original inclined state under the action of the return spring 49.

[0083] The sheet covered with glass fiber moves forward via conveyor belt assembly 21 and is compacted by flattening roller 22. Then, the sheet passes through two stretching rollers 24 in an S-shape and finally rests on swing frame 26. The swing frame 26 is then periodically deflected back and forth by an external electric drive device, so that the sheet that slides off the swing frame 26 is folded and stored.

[0084] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made by those skilled in the art based on the above concepts without creative effort shall fall within the scope of protection of the present invention.

Claims

1. A cutting mechanism of an SMC sheet machine for producing round manhole covers, characterized in that, The utility model relates to a kind of glass fiber cutting device, including: Sheet mechanism (2) for folding and storing processing after molding SMC sheet, the sheet mechanism (2) is fixedly installed on the outer end surface of rack body (1); Transmission mechanism (3) for the conveying and guiding processing of long strip glass fiber, the transmission mechanism (3) is arranged on the end of the rack body (1) away from the sheet mechanism (2); Cutting device (4) for the fixed-length cutting processing of long strip glass fiber, the cutting device (4) is arranged at the center position inside the rack body (1); Wherein sheet mechanism (2) includes conveyor belt assembly (21), the conveyor belt assembly (21) is arranged inside the rack body (1), and the flat roller (22) is rotatably installed in the inside of the rack body (1), and the flat roller (22) is used to flatten the sandwich structure of sheet preliminary forming double-sided covering film; The outer end surface of the rack body (1) is fixedly installed with support frame body (23), and the inner portion of the support frame body (23) is rotatably installed with stretching roller (24), and the stretching roller (24) is used for the stretching processing of sheet; The transmission mechanism (3) includes conveying table (31), and the conveying table (31) is fixedly installed on the top of the rack body (1), and the outer end surface of the conveying table (31) is fixedly installed with a first rail (32) and a second rail (35) respectively, and the outer end surface of the first rail (32) is fixedly installed with a first electric push rod (33), and the output end of the first electric push rod (33) is fixedly connected with a first feeding frame (34), and the first feeding frame (34) is slidably fitted on the outside of the first rail (32); The outer end surface of the second rail (35) is fixedly installed with a second electric push rod (36), and the output end of the second electric push rod (36) is fixedly connected with a second feeding frame (37), and the second feeding frame (37) is slidably fitted on the outside of the second rail (35); Wherein the first feeding frame (34) and the second feeding frame (37) are fed by transverse alternation to long strip glass fiber; The outer side of the conveying table (31) is fixedly installed with a servo motor (38), the output end of the servo motor (38) is connected with a transmission roller (39) through a shaft coupling, the transmission roller (39) is rotatably installed in the inside of the conveying table (31), and the center part of the transmission roller (39) is drivingly connected with a conveying belt (30); Wherein the conveying belt (30) is used for the conveying processing of long strip glass fiber; The cutting device (4) includes guide table (41), and the guide table (41) is fixedly installed at the center position on the top of the rack body (1), and the guide table (41) is used for the traction processing of cut glass fiber towards the direction of the conveyor belt assembly (21); Wherein the bottom of the guide table (41) is hollow, and it has height difference between the conveyor belt assembly (21), so that sheet is conveyed forward along the center of the top of the inner cavity of the rack body (1) and the conveyor belt assembly (21).

2. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 1, characterized in that: The top of the support frame body (23) is fixedly installed with a rotating shaft (25) through a support, the outer side of the rotating shaft (25) is rotatably installed with an oscillating frame (26), and the sandwich sheet is folded and stored through reciprocating oscillation of the oscillating frame (26). The conveying belt assembly (21) and the oscillating frame (26) are controlled by external power equipment.

3. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 1, characterized in that: The end surface of the conveying table (31) is fixedly installed with a cutting table (42), the top of the cutting table (42) is fixedly connected with a Z-shaped plate (43), the top of the inner cavity of the Z-shaped plate (43) is fixedly installed with a hydraulic rod (44), the output end of the hydraulic rod (44) is fixedly connected with a tool holder (45), and the bottom of the tool holder (45) is connected with a cutting knife (46) through bolts.

4. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 3, characterized in that: The outer side of the guide table (41) is fixedly installed with an empty plate (47), the inner cavity of the empty plate (47) is rotatably installed with a turnover baffle (48) through a support shaft seat on both sides, and the bottom of the turnover baffle (48) is fixedly connected with a return spring (49). A cleaning scraper (40) is used for cleaning the glass fibers adhered to the surface of the cutting knife (46), and is fixedly installed in the inner part of the empty plate (47), and the cleaning scraper (40) is fixedly connected with the bottom end of the return spring (49).

5. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 3, characterized in that: The outer side of the conveying table (31) is connected with a fixed shaft (401) through a bearing seat, the outer side of the fixed shaft (401) is fixedly connected with a pressure roller (402) and a second gear (404) respectively, the outer side of the second gear (404) is engaged with a first gear (403) in transmission, and the center of the first gear (403) is fixedly connected with the transmission roller (39). The second gear (404) is provided with a third gear (405) away from the first gear (403), and the second gear (404) and the third gear (405) are not engaged in transmission.

6. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 5, characterized in that: The outer side of the third gear (405) is fixedly connected with a toothed connecting rod (406), one end of the toothed connecting rod (406) away from the third gear (405) is fixedly connected with a fourth gear (407), and the centers of the fourth gear (407) and the third gear (405) are rotatably connected with a first toothed connecting shaft (408), and the first toothed connecting shaft (408) is fixedly connected to the inner side of the cutting table (42). The outer side of the fourth gear (407) is welded with a first bearing (409), the outer ring of the first bearing (409) is fixedly connected with an electric driving rod (400), and one end of the electric driving rod (400) away from the first bearing (409) is fixedly installed in the inner side of the cutting table (42), wherein the fourth gear (407) is connected with the inner ring of the first bearing (409).

7. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 6, characterized in that: The inner side of the cutting table (42) is fixedly provided with a second gear shaft (41a), the outer side of the second gear shaft (41a) is rotationally provided with a fifth gear (42a), the outer side of the fifth gear (42a) is engagedly provided with the second gear (404), the outer side of the fifth gear (42a) is welded with a second bearing (43a), the bottom of the outer ring of the second bearing (43a) is fixedly connected with a second curved rod (47a), one end of the second curved rod (47a) away from the second bearing (43a) is fixedly connected with the bottom of the outer ring of the first bearing (409).

8. The cutting mechanism of the SMC sheet machine for producing round manhole covers according to claim 7, characterized in that: The outer side of the cutter holder (45) is fixedly connected with a connecting strip (45a), one end of the connecting strip (45a) away from the cutter holder (45) is fixedly connected with a first gear rack (44a), the bottom of the first gear rack (44a) is fixedly connected with a first curved rod (46a), one end of the first curved rod (46a) away from the first gear rack (44a) is fixedly connected with a second gear rack (48a); The first gear rack (44a) is engagedly driven with the fifth gear (42a), and the second gear rack (48a) is engagedly driven with the fourth gear (407); The outer side of the first gear rack (44a) is slidably provided with a first limiting rod (49a) through a plate, and the outer side of the second gear rack (48a) is slidably provided with a second limiting rod (40a) through a plate, and the first limiting rod (49a) and the second limiting rod (40a) are fixedly installed on the top of the rack body (1).

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