A valve bag folding and cutting integrated machine

Abstract

The present invention relates to a valve bag folding and cutting integrated machine, comprising a frame, a folding mechanism for folding a bag at an original bag mouth and a cutting mechanism for cutting the bag folded from the folding mechanism into a straight line, the frame is provided with a cutting placement surface for placing the valve bag at the cutting mechanism, the cutting mechanism comprises a cutting knife and a cutting drive mechanism for driving the cutting knife to perform cutting movement toward the cutting placement surface, and the cutting knife is provided with a blade extending in a straight line toward the cutting placement surface. By adopting the above scheme, a valve bag folding and cutting integrated machine is provided, which first folds the bag body through the folding mechanism so that the two cutting edges required for 7-shaped cutting overlap, and can achieve a smooth cutting edge with a simplified process by a single cutting with the straight-line blade in the cutting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of valve bag production, and in particular to a valve bag folding and cutting integrated machine. Background Art

[0002] Valve bags are a kind of packaging bags, which are often used in industry to package cement powder, flour and other materials. They are fed from the top or bottom valve port, and have the advantages of neat and beautiful stacking, high packaging efficiency, convenient transportation and low breakage rate.

[0003] Existing valve bags are usually made of Figure 1 , Figure 2 The bag body shown is used as the product to be processed, and one end of the bag body is provided with an original bag opening. Figure 3 , Figure 4 As shown in the figure, the bag body is cut into a 7-shaped cut at the bag mouth by cutting, so as to cut a square piece of cutting waste, so that a cut bag mouth is formed on the bag body and a convex folding part is formed between the original bag mouth and the cut bag mouth. After the cutting is completed, the bag body is placed in a valve bag folding machine to fold the folding part to form the following Figure 5 , Figure 6 The valve bag shown has been folded, and the valve bag can be subsequently cut and sealed by sewing, hot pressing, etc. to complete the processing of the valve bag.

[0004] The existing valve bag problems are: 1. 7-shaped cutting requires two cuts, horizontally and vertically, so too many cuts result in low production efficiency; 2. 7-shaped cutting is prone to over-cutting at the intersection of horizontal and vertical cutting, resulting in damage to the bag body, resulting in insufficient strength of the bag body, or insufficient cutting, resulting in cutting waste connecting to the bag body and affecting subsequent processing. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a valve bag folding and cutting machine which first folds the bag body through a folding mechanism so that the two cutting edges required for 7-shaped cutting overlap, and a single cutting with a straight-line blade in the cutting mechanism can achieve smooth cutting edges and a simplified process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a frame, on which is provided a folding mechanism for folding the bag body at the original bag mouth and a cutting mechanism for cutting the bag body folded by the folding mechanism into a straight line, the frame is provided with a cutting placement surface for placing the valve bag at the cutting mechanism, the cutting mechanism includes a cutting knife and a cutting drive mechanism for driving the cutting knife to perform cutting movement toward the cutting placement surface, and the cutting knife is provided with a blade extending in a straight line toward the cutting placement surface.

[0007] By adopting the above technical solution, such as Figure 7 , Figure 8 The bag body which has not been processed can be folded by the folding mechanism to form a bag body. Fig. 9 , Fig.10 The bag body with the folded edge is then placed on the cutting placement surface, and the cutting knife is driven toward the cutting placement surface by the cutting drive mechanism, so that the cutting is formed as follows under the action of the blade. Fig.11 , Fig.12 The bag body has the same shape and size as the bag body formed by the traditional processing method, but the processing technology adopted not only simplifies and reduces the number of cutting times, but also makes the flatness of the cutting edge better.

[0008] The present invention is further configured as follows: a transmission mechanism for transmitting the bag body is arranged on the frame, the transmission mechanism includes a first conveyor belt and a second conveyor belt for clamping the bag body up and down, and a transmission drive mechanism for driving the first conveyor belt and the second conveyor belt to transmit, and the folding mechanism and the cutting mechanism are arranged in sequence along the transmission direction of the transmission mechanism.

[0009] By adopting the above technical solution and setting up the transmission mechanism, the first conveyor belt and the second conveyor belt are driven by the transmission drive mechanism to clamp the bag body for transmission, so that automatic transmission is realized and the bag body processed by the folding mechanism is transmitted to the cutting mechanism for processing, thereby improving production efficiency.

[0010] The present invention is further configured as follows: the transmission drive mechanism includes a transmission drive motor, a plurality of first rotating rods, a plurality of second rotating rods, a first gear, a second gear, a third gear, a fourth gear and a toothed belt, the axial direction of each of the first rotating rods and the second rotating rods is perpendicular to the transmission direction of the transmission mechanism, and is rotatably installed on the frame, a first pulley for tightening the first conveyor belt is fixedly arranged on the outer periphery of each of the first rotating rods, a second pulley for tightening the second conveyor belt is fixedly arranged on the outer periphery of each of the second rotating rods, the first gear is fixedly installed on the outer periphery of one of the first transmission rods, the second gear is fixedly installed on the outer periphery of one of the second transmission rods, the first gear is meshed with the second gear and has the same number of teeth, the transmission drive motor is fixedly installed on the frame, the third gear is fixedly installed on the output shaft of the transmission drive motor, the fourth gear is fixedly installed on the outer periphery of one of the first rotating rods or the second rotating rods, and the toothed belt is meshed with the third gear and the fourth gear.

[0011] By adopting the above technical solution, the transmission drive mechanism adopts a transmission drive motor to synchronously drive the first gear with a transmission ratio of 1 and the second gear to mesh through the stable output of the third gear, the fourth gear and the toothed belt to realize the equal-speed rotation of the first rotating rod and the second rotating rod, realize the equal-speed transmission of the first conveyor belt and the second conveyor belt, and ensure a more stable clamping transmission of the bag body, prevent slipping from causing deviations in the transmission position, and cause deviations in the folding and cutting positions.

[0012] The present invention is further configured as follows: a stress-bearing copper bar for bearing the cutting force of the blade is arranged on the cutting placement surface of the frame, and the stress-bearing copper bar is arranged on the movement track of the blade with a cutting bearing surface.

[0013] By adopting the above technical solution and setting the stressed copper strip, the cutting action of the blade is transmitted to the cutting bearing surface of the stressed copper strip and borne by the stressed copper strip. The good softness and ductility of copper are utilized to protect the blade and prevent the blade from being damaged by high-frequency metal collisions.

[0014] The present invention is further configured such that: the cutting bearing surface and the cutting direction of the blade are perpendicular to each other.

[0015] By adopting the above technical solution, the cutting bearing surface and the cutting direction of the blade are arranged perpendicular to each other, so that the blade acts perpendicularly on the cutting bearing surface, thereby preventing the generation of tilting force and causing bending moment of the cutter, thereby protecting the cutter.

[0016] The present invention is further configured as follows: a heating tube for heating the cutter is arranged inside the cutter.

[0017] By adopting the above technical solution, different materials of valve bags require different cutting methods. For example, if valve bags made of some materials are cold cut, burrs will be generated at the cutting position or even incomplete cutting. The setting of the heating tube makes it possible to heat the cutter for hot cutting, thereby adapting to the cutting process of valve bags of different materials.

[0018] The present invention is further configured as follows: a lumen is provided in the cutter along the same straight-line extension direction as the blade, and the length of the heating tube is adapted to the extension length of the lumen.

[0019] By adopting the above technical solution, the tube cavity is arranged along the same straight-line extension direction as the blade, so that an adapted heating tube can be arranged to achieve more uniform heating of the cutter, making the heating more uniform and further ensuring the hot cutting effect.

[0020] The present invention is further configured as follows: a waste removal mechanism for separating the cut waste cut by the cutting mechanism from the bag body is arranged on the frame, the waste removal mechanism comprises a rotating discharge roller and an auxiliary pressure roller whose axial direction is parallel to the I-shaped extension direction of the blade, the rotating discharge roller is rotatably installed on the frame along the circumferential direction, the waste removal mechanism also comprises a waste removal drive mechanism for driving the rotating discharge roller to rotate circumferentially, the cutting drive mechanism comprises a mounting seat for mounting the cutter, the auxiliary pressure roller is rotatably installed on the mounting seat along the circumferential direction, and the movement direction of the cutter toward the cutting placement surface is the same as the movement direction of the auxiliary pressure roller toward the rotating discharge roller.

[0021] By adopting the above technical scheme, 1. Since the bag body will be hot-melt-bonded at the hot-cut position after hot cutting, a waste removal mechanism is set up to press the bag body and the cut waste through the auxiliary pressing roller, and the cut waste is separated in the direction away from the bag body by the rotation of the discharging roller driven by the waste removal driving mechanism to eliminate the hot-melt bonding and remove the waste; 2. The mounting seat connects the cutter with the auxiliary pressing roller, so the pressing of the cut waste by the auxiliary pressing roller is synchronized with the cutting of the cutter and the synchronous retraction of the cutter, which not only reduces the number of driving mechanisms, but also makes the production efficiency higher by synchronous operation.

[0022] The present invention is further configured as follows: the waste removal driving mechanism includes a waste removal cylinder, a waste removal rack and a waste removal gear, the waste removal gear is fixedly installed on the outer periphery of the rotating discharge roller, the waste removal cylinder is fixedly installed on the frame, the waste removal rack is fixedly installed on the output shaft of the waste removal cylinder, and the waste removal gear is meshingly connected with the waste removal rack.

[0023] By adopting the above technical solution, the waste removal driving mechanism uses the waste removal cylinder to drive the waste removal rack to slide, thereby driving the waste removal gear to rotate and realize rotating the discharge roller to rotate and discharge the waste, which is faster and improves work efficiency.

[0024] The present invention is further configured as follows: a pressure regulating rod is slidably arranged on the mounting seat, the sliding direction of the pressure regulating rod is the same as the movement direction of the auxiliary pressure roller toward the rotating discharge roller, the auxiliary pressure roller is rotatably installed on the pressure regulating rod, a support spring is compressed and arranged between the pressure regulating rod and the mounting seat, the reset direction of the support spring is the same as the direction of the auxiliary pressure roller toward the rotating discharge roller, the mounting seat is provided with a guide track for the auxiliary pressure roller to guide and slide along the direction of the auxiliary pressure roller toward the rotating discharge roller, a guide bearing is provided on the outer periphery of the auxiliary pressure roller within the guide track, and the diameter of the guide bearing is adaptively arranged to the width of the guide track.

[0025] By adopting the above technical scheme, 1. the setting of the pressure regulating rod cooperates with the setting of the supporting spring, so that after the auxiliary pressure roller contacts the rotating discharge roller, the cutter continues to descend and cuts, preventing excessive squeezing toward the rotating discharge roller and mutual squeezing and damage, thereby playing a protective role; 2. The setting of the guide track, in conjunction with the guide bearing, can guide the auxiliary pressure roller, preventing the auxiliary pressure roller from deviating from its position and generating bending moment during the further compression of the spring.

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a top view of the valve bag that has not been processed by traditional technology;

[0028] Figure 2 This is the front view of the valve bag that has not been processed by traditional technology;

[0029] Figure 3 This is a top view of the valve bag that has been cut in the shape of a 7 using the traditional process;

[0030] Figure 4 This is the main view of the valve bag after the traditional 7-shaped cutting process;

[0031] Figure 5 This is a top view of a valve bag after folding using the traditional process;

[0032] Figure 6 This is the front view of the valve bag after folding in the traditional process;

[0033] Figure 7 A top view of an unprocessed valve bag produced by the apparatus of the present invention;

[0034] Figure 8 A front view of an unprocessed valve bag produced by the apparatus of the present invention;

[0035] Fig. 9 A top view of a valve bag through a fold produced by the apparatus of the present invention;

[0036] Fig.10 A front view of a valve bag through a fold produced by the device of the present invention;

[0037] Fig.11 A top view of a cut valve bag produced by the apparatus of the present invention;

[0038] Fig.12 A front view of a cut valve bag produced by the apparatus of the present invention;

[0039] Fig.13A top view of a sewn valve bag produced by the apparatus of the present invention;

[0040] Fig.14 A front view of a sewn valve bag produced by the apparatus of the present invention;

[0041] Fig.15 It is an assembly diagram of a specific embodiment of the present invention;

[0042] Fig.16 A top view of a specific embodiment of the present invention;

[0043] Fig.17 A top view of a specific embodiment of the present invention in use;

[0044] Fig.18 It is an assembly diagram of the folding mechanism in a specific embodiment of the present invention;

[0045] Fig.19 It is an assembly diagram of the folding mechanism in a specific embodiment of the present invention;

[0046] Fig. 20 It is an assembly diagram of the cutting mechanism in a specific embodiment of the present invention;

[0047] Fig.21 It is an assembly diagram of the cutting mechanism in a specific embodiment of the present invention;

[0048] Fig. 22 It is a cross-sectional view of the assembly of the cutter and the heating tube in a specific embodiment of the present invention;

[0049] Fig.23 for Fig.21 A magnified view of middle;

[0050] Fig.24 It is an assembly diagram of a frame and a transmission mechanism in a specific embodiment of the present invention;

[0051] Fig.25 for Fig.24 Enlarged view of B. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] The present invention discloses a valve bag folding and cutting integrated machine for producing Figure 7-Figure 14 The valve bag shown in the figure, wherein the production process is as follows Figure 7 , Figure 8 The bag body 1 shown is used as a product to be processed, and the front end of the bag opening is provided with an original bag opening 11, and then the bag body 1 is folded by a folding process to form a bag body 1 as shown in FIG. Fig. 9 , Fig.10 The structure shown in FIG. 1 is a structure in which the original bag opening 11 is partially folded into the bag body 1. After the folding process is completed, a single cutting process is performed in a direction parallel to the non-folded original bag opening 11 to form a cut bag opening 12, and a portion of the cut waste 13 is cut on the bag body 1 to form a cut bag opening 12. Fig.11 , Fig.12 The structure shown in FIG. 1 can now be formed into a bag body 1 having the same shape as the traditional process of first cutting and folding the bag body 1 in the shape of a 7-shaped cut. After the cutting process is completed, the bag body 1 is finally sutured at the cut bag opening 12 by a suture process to form a suture line 14 to close the cut bag opening 12, forming a bag body 1 having the same shape as the traditional process of first cutting and folding the bag body 1 in the shape of a 7-shaped cut. Fig.13 , Fig.14 The finished valve pocket is shown.

[0054] like Figure 15-17 As shown, the present embodiment includes a frame 2, on which a conveying mechanism 3 for conveying the bag body 1 is arranged, and the conveying direction of the conveying mechanism 3 is from left to right. In addition, the frame 2 is located at the rear side of the conveying mechanism 3 and is provided with a folding mechanism 4, a cutting mechanism 5 and a sewing machine 6 in sequence from left to right, so that Figure 7 , Figure 8 The bag body 1 shown in the figure can enter the conveying mechanism 3 from the left side, and enter the folding mechanism 4 under the conveying action of the conveying mechanism 3, so that the bag body 1 is folded under the folding mechanism 4 to form a bag body 1 as shown in the figure. Fig. 9 , Fig.10 After the folding mechanism 4 completes the folding, the bag body 1 is transferred to the cutting mechanism 5 through the transfer mechanism 3, so that the bag body 1 is cut at the cutting mechanism 5 to form the bag body 1 as shown in FIG. Fig.11 , Fig.12 After the cutting mechanism 5 completes the cutting, the bag is transferred to the sewing machine 6 through the transfer mechanism 3. During the transfer, the sewing machine 6 works to close the cut bag opening 12 to form a bag as shown in FIG. Fig.13 , Fig.14 The structure shown completes the processing, and finally the material is discharged under the transmission action of the transmission mechanism 3.

[0055] Combination Figure 18-Figure 19As shown, the folding mechanism 4 in this embodiment includes an upper suction mechanism 41, a lower suction mechanism 42, an opening mechanism 43 and a crease mechanism 44, wherein the upper suction mechanism 41 includes an upper cylinder 411 and an upper suction box 412, the upper cylinder 411 is fixedly mounted on the frame 2, and drives the upper suction box 412 to move up and down, the lower suction mechanism 42 includes a lower cylinder 421 and a lower suction box 422, the lower cylinder 421 is fixedly mounted on the frame 2, and drives the lower suction box 422 to move up and down, in addition, the lower end surface of the upper suction box 412 and the upper end surface of the upper suction box 412 are provided with negative pressure holes connected inside and outside, and the upper suction box 412 and the lower suction box 422 are provided with negative pressure pipes, so that negative pressure is generated in the upper suction box 412 and the lower suction box 422 through the negative pressure pipe connected to the negative pressure pump, thereby the bag body is filled with a bag. The upper and lower surfaces of 1 are adsorbed through the negative pressure holes, and the upper suction box 412 is driven to move upward by the upper cylinder 411, and the lower suction box 422 is driven to move downward by the lower cylinder 421 to open the bag body 1, wherein the opening mechanism 43 includes a first insertion motor 431, a first belt pulley combination 432, a first sliding seat 433, an upper plate 434, an upper opening cylinder 435, a lower plate 436 and a lower opening cylinder 437, the first insertion motor 431 is fixedly installed on the frame 2, and drives the first belt pulley combination 432 to transmit movement, the first sliding seat 433 is fixedly installed on the belt of the first belt pulley combination 432, and is transmitted with the belt, in addition, the upper plate 434 and the lower plate 436 are installed on the first sliding seat 433 along the vertical sliding, and the upper plate 434 is located on the vertical upper side of the lower plate 436, and the upper opening cylinder 435 and the lower opening cylinder 437 are fixedly installed on the first sliding seat 433, and the upper opening cylinder 435 drives the upper plate 434 to slide up and down, and the lower opening cylinder 437 drives the lower plate 436 to slide up and down. Therefore, after the upper suction mechanism 41 and the lower suction mechanism 42 suck the bag body 1 open, the upper plate 434 and the lower plate 436 are driven by the first insertion motor 431 to insert into the bag body 1 from the original bag opening 11 and the upper opening cylinder 435 and the lower opening cylinder 437 effectively press the upper and lower sides of the bag body 1 onto the upper suction box 412 and the lower suction box 422, and the upper plate 434 and the lower plate 436 face the crease mechanism 44 as the positioning edge for folding, wherein the crease mechanism 44 includes The second insertion motor 441, the second belt pulley combination 442, the second sliding seat 443 and the folding plate 444, the second insertion motor 441 is fixedly installed on the frame 2, and drives the second belt pulley combination 442 to transmit movement, the second sliding seat 443 is fixedly installed on the belt of the second belt pulley combination 442, and transmits with the belt, in addition, the folding plate 444 is installed on the second sliding seat 443 by means of bolts, etc., so after the opening mechanism 43 completes the insertion, the folding plate 444 is driven by the second insertion motor 441 to be inserted between the upper plate 434 and the lower plate 436, and the bag body 1 is folded to fold part of the bag body 1 inwardly of the bag body 1, and then the folding plate 444 withdraws, and the upper plate 434 and the lower plate 436 withdraw.The upper suction mechanism 41 and the lower suction mechanism 42 press the bag body 1 back and release the negative pressure to complete the processing. The shapes of the upper plate 434 and the lower plate 436 in the folding mechanism 4, the shape of the folding plate 444, and the transmission direction of the first belt pulley combination 432 and the second belt pulley combination 442 adopt the setting mode of the existing folding machine, which will not be described in detail here.

[0056] Combination Figure 20-Figure 22 As shown, the frame 2 in this embodiment is provided with a cutting placement surface 21 for placing the valve bag at the cutting mechanism 5. In addition, the cutting mechanism 5 includes a cutter 51 and a cutting drive mechanism 52, wherein the cutter 51 is located above the cutting prevention surface, and the cutting drive mechanism 52 is used to drive the cutter 51 to slide in the vertical direction to achieve movement and cutting toward the cutting placement surface 21. In addition, the cutter 51 is provided with a blade 511 extending in a straight line in the left and right directions on the side facing the cutting placement surface 21. Therefore, after the folded bag body 1 is transferred and placed on the cutting placement surface 21, it can slide vertically downward through the cutter 51, and the cutting is achieved by the cutting action of the blade 511 on the cutting placement surface 21, and the straight-line blade 511 can complete the cutting of the bag body 1 that originally required 7-shaped cutting with a single cutting, and has the characteristics of smooth cutting edges and simple process.

[0057] Among them, the cutting drive mechanism 52 in this embodiment includes a cutting cylinder 521 and a mounting seat 522. The cutter 51 is fixedly installed below the mounting seat 522 by means of connecting rods, bolts, etc., and the cutting cylinder 521 is arranged on the frame 2 and is located above the mounting seat 522. It is connected to the mounting seat 522 by means of threaded connection, etc., so that the mounting seat 522 drives the cutter 51 to slide and cut through the drive of the cutting cylinder 521.

[0058] Among them, the frame 2 in this embodiment is located on the cutting placement surface 21, and a stress-bearing copper bar 22 is provided by grooving and embedding on the cutting placement surface 21, and the upper end surface of the stress-bearing copper bar 22 is located on the movement trajectory of the blade 511 and a cutting bearing surface 221 is provided. Therefore, the cutting action of the blade 511 is transmitted to and borne by the cutting bearing surface 221 of the stress-bearing copper bar 22, and the copper material has good softness and ductility to protect the blade 511, thereby preventing the blade 511 from being damaged by high-frequency metal collisions.

[0059] Preferably, the cutting bearing surface 221 and the cutting direction of the blade 511 in this embodiment are perpendicular to each other, so that the blade 511 acts perpendicularly on the cutting bearing surface 221, thereby preventing the generation of a tilting force that causes the cutter 51 to generate a bending moment, thereby protecting the cutter 51.

[0060] In addition, the cutter 51 in this embodiment has a lumen 512 extending in the same direction as the straight-line extension of the blade 511, and the lumen 512 is arranged to penetrate the cutter 51. In addition, a heating tube 513 for heating the cutter 51 is arranged in the lumen 512, and the length of the heating tube 513 is adapted to the extension length of the lumen 512. Therefore, the arrangement of the heating tube 513 makes it possible to heat the cutter 51 for hot cutting, thereby adapting to valve bags of different materials for cutting processing. In addition, the arrangement of the lumen 512 extending in the same direction as the straight-line extension of the blade 511 makes it possible to heat the cutter 51 more evenly by arranging the adapted heating tube 513, so that the heating is more evenly applied and the hot cutting effect is further ensured.

[0061] In addition, the frame 2 in this embodiment is provided with a waste removal mechanism 7 located at the rear side of the cutting mechanism 5 for separating the cut waste 13 cut by the cutting mechanism 5 from the bag body 1, wherein the waste removal mechanism 7 includes a rotating discharge roller 71 and an auxiliary pressure roller 72 axially along the left-right direction, the rotating discharge roller 71 is rotatably mounted on the frame 2 by means of bearings, etc., and the waste removal mechanism 7 also includes a waste removal drive mechanism 73 for driving the rotating discharge roller 71 to rotate circumferentially, and the auxiliary pressure roller 72 is rotatably mounted on the mounting seat 522 along the circumferential direction, and The auxiliary pressure roller 72 is located directly above the rotating discharge roller 71, so that when the cutter 51 slides downward and approaches the cutting placement surface 21 to cut the bag body 1, the auxiliary pressure roller 72 approaches downward and presses on the rotating discharge roller 71 to clamp the cut waste 13 cut from the bag body 1 by the cutter 51, and after the cutter 51 completes cutting, the waste removal drive mechanism 73 works to realize the rotation of the rotating discharge roller 71 and the auxiliary pressure roller 72 to complete the rotation and move the cut waste 13 away from the bag body 1, thereby realizing rapid waste removal and improving production efficiency.

[0062] Among them, the waste removal driving mechanism 73 in this embodiment includes a waste removal cylinder 731, a waste removal rack 732 and a waste removal gear 733. The waste removal gear 733 is fixedly installed on the outer periphery of the rotating discharge roller 71 by means of key connection, etc., the waste removal cylinder 731 is fixedly installed on the frame 2 by means of bolts, etc., and the waste removal rack 732 is fixedly installed on the output shaft of the waste removal cylinder 731 by means of threaded connection, etc. In addition, the waste removal gear 733 is meshingly connected with the waste removal rack 732. Therefore, the waste removal driving mechanism 73 adopts the waste removal cylinder 731 to drive the waste removal rack 732 to slide, thereby driving the waste removal gear 733 to rotate, so as to realize the rotating discharge roller 71 to rotate and discharge waste, and the waste discharge speed is faster and the work efficiency is improved.

[0063] Combination Fig.23As shown, preferably, pressure regulating rods 5221 are respectively provided on the mounting seat 522 in the present embodiment at both axial ends of the auxiliary pressure roller 72, and the pressure regulating rod 5221 is slidably arranged on the mounting seat 522 along the up and down directions. In addition, the axial ends of the auxiliary pressure roller 72 are respectively rotatably mounted on the pressure regulating rod 5221 by means of bearings to achieve installation on the mounting seat 522. In addition, a support spring 5222 is compressed and arranged between the pressure regulating rod 5221 and the mounting seat 522, and the reset direction of the support spring 5222 is the same as the direction of the auxiliary pressure roller 72 toward the rotating discharge roller 71. Therefore, after the auxiliary pressure roller 72 contacts the rotating discharge roller 71, the cutting knife 51 continues to downwardly cut and is prevented from being excessively squeezed toward the rotating discharge roller 71 and mutually squeezed and damaged by the sliding of the pressure regulating rod 5221, and an effective squeezing effect is ensured by the support spring 5222, thereby protecting the auxiliary pressure roller 72 and the rotating discharge roller 71.

[0064] In addition, the mounting seat 522 in this embodiment is located at both axial ends of the auxiliary pressure roller 72 and is respectively provided with guide rails 5223 for the auxiliary pressure roller 72 to slide vertically. In addition, a guide bearing 721 is provided on the outer periphery of the auxiliary pressure roller 72 in the guide rail 5223, and the diameter of the guide bearing 721 is adapted to the width of the guide rail 5223, so as to guide the auxiliary pressure roller 72 and prevent the auxiliary pressure roller 72 from deviating from its position and generating bending moment during further compression of the spring.

[0065] Combination Figure 24-25 As shown, the transmission mechanism 3 in this embodiment includes a first conveyor belt 31 and a second conveyor belt 32 for clamping the bag body 1 up and down, and a transmission driving mechanism 33 for driving the first conveyor belt 31 and the second conveyor belt 32 to transmit, wherein the number of the first conveyor belt 31 and the second conveyor belt 32 is a plurality of tracks, and they are arranged at intervals along the front-to-back direction. Therefore, the first conveyor belt 31 and the second conveyor belt 32 are driven by the transmission driving mechanism 33 to clamp the bag body 1 for transmission, so that automatic transmission is realized and the bag body 1 processed by the folding mechanism 4 is transmitted to the cutting mechanism 5 for processing, thereby improving production efficiency, and multiple first conveyor belts 31 and the second conveyor belt 32 clamping the bag body 1 at the same time can realize a more stable clamping of the bag body 1.

[0066] The transmission drive mechanism 33 in this embodiment includes a transmission drive motor 331, a plurality of first rotating rods 332, a plurality of second rotating rods 333, a first gear 334, a second gear 335, a third gear 336, a fourth gear 337 and a toothed belt 338. The axial direction of each first rotating rod 332 and the second rotating rod 333 is arranged along the front-to-back direction, and is rotatably mounted on the frame 2 by means of bearings or the like. The outer periphery of each first rotating rod 332 is fixedly provided with a first pulley 3321 for tightening the first conveyor belt 31 by means of key connection or the like. The outer periphery of each second rotating rod 333 is fixedly provided with a second pulley 3331 for tightening the second conveyor belt 32 by means of key connection or the like. The first gear 334 is fixedly mounted on the outer periphery of one of the first transmission rods by means of key connection. The second gear 335 is fixedly mounted on the outer periphery of one of the second transmission rods. The first gear 334 is meshedly connected with the second gear 335, and the gears 336 and 337 are meshedly connected. The number is the same. In addition, the transmission drive motor 331 is fixedly arranged on the frame 2 by means of bolts or the like, and the third gear 336 is fixedly installed on the output shaft of the transmission drive motor 331 by means of key connection or the like, and the fourth gear 337 is fixedly installed on the outer periphery of one of the second rotating rods 333 by means of key connection or the like, and the toothed belt 338 meshes and connects the third gear 336 and the fourth gear 337. Therefore, the transmission drive mechanism 33 adopts a transmission drive motor 331 through the stable output of the third gear 336, the fourth gear 337, and the toothed belt 338 to synchronously drive the first gear 334 with a transmission ratio of 1 to mesh with the second gear 335 to realize the uniform rotation of the first rotating rod 332 and the second rotating rod 333, realize the uniform speed transmission of the first conveyor belt 31 and the second conveyor belt 32, and ensure the more stable clamping transmission of the bag body 1, and prevent the occurrence of slippage, which causes the transmission position to deviate, resulting in deviation of the folding and cutting positions.

[0067] In addition, if the distance between the first gear 334 and the second gear 335 is large, an auxiliary gear 339 with the same number of teeth as the first gear 334 and the second gear 335 can be set and connected by belts, chains, etc. The transmission connection using different numbers of gears, chains, etc. is a conventional technical means and will not be explained in detail here.

Claims

1. A valve bag folding and cutting machine, characterized by: The machine comprises a frame, wherein a folding mechanism is provided on the frame for folding the bag body at the original bag mouth and a cutting mechanism is provided on the frame for cutting the bag body which has completed the folding from the folding mechanism in an in-line manner, wherein the frame is provided with a cutting placement surface for placing the valve bag, wherein the cutting mechanism comprises a cutting knife and a cutting drive mechanism for driving the cutting knife to perform a cutting movement toward the cutting placement surface, wherein the cutting knife is provided with a blade extending in an in-line shape toward the cutting placement surface, wherein the frame is provided with a waste removal mechanism for separating the cut waste material cut by the cutting mechanism from the bag body, wherein the waste removal mechanism comprises a rotating discharging roller and an auxiliary pressing roller whose axial direction is parallel to the in-line extension direction of the blade, wherein the rotating discharging roller is rotatably mounted on the frame along the circumferential direction, wherein the waste removal mechanism further comprises a waste removal drive mechanism for driving the rotating discharging roller to circumferentially rotate, wherein the cutting drive mechanism comprises a mounting seat for mounting the cutting knife, wherein the auxiliary pressing roller is rotatably mounted on the mounting seat along the circumferential direction, and the cutting knife is disposed toward the cutting placement surface The cam is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support, and the toothed support is provided with a toothed support.

2. The valve bag folding and cutting machine according to claim 1, characterized in that: The frame is provided with a conveying mechanism for conveying the bag body, and the conveying mechanism includes a first conveyor belt and a second conveyor belt for clamping the bag body up and down, and a conveying driving mechanism for driving the first conveyor belt and the second conveyor belt to convey the bag body. The folding mechanism and the cutting mechanism are arranged in sequence along the conveying direction of the conveying mechanism.

3. The valve bag folding and cutting machine according to claim 2, characterized in that: The transmission driving mechanism includes a transmission driving motor, a plurality of first rotating rods, a plurality of second rotating rods, a first gear, a second gear, a third gear, a fourth gear and a toothed belt. The axial direction of each of the first rotating rods and the second rotating rods is perpendicular to the transmission direction of the transmission mechanism, and is rotatably installed on the frame. A first pulley for tightening the first conveyor belt is fixedly arranged on the outer periphery of each of the first rotating rods, and a second pulley for tightening the second conveyor belt is fixedly arranged on the outer periphery of each of the second rotating rods. The first gear is fixedly installed on the outer periphery of one of the first transmission rods, and the second gear is fixedly installed on the outer periphery of one of the second transmission rods. The first gear is meshed with the second gear and has the same number of teeth. The transmission driving motor is fixedly installed on the frame, the third gear is fixedly installed on the output shaft of the transmission driving motor, the fourth gear is fixedly installed on the outer periphery of one of the first rotating rods or the second rotating rods, and the toothed belt is meshed with the third gear and the fourth gear.

4. The valve bag folding and cutting machine according to claim 1, characterized in that: The frame is provided with a stress-bearing copper bar for bearing the cutting force of the blade on the cutting placement surface, and the stress-bearing copper bar is provided with a cutting bearing surface on the movement track of the blade.

5. The valve bag folding and cutting machine according to claim 4, characterized in that: The cutting bearing surface and the cutting direction of the blade are perpendicular to each other.

6. The valve bag folding and cutting machine according to claim 1, characterized in that: A heating tube for heating the cutter is arranged inside the cutter.

7. The valve bag folding and cutting machine according to claim 6, characterized in that: The cutter is provided with a lumen extending in the same straight-line direction as the blade, and the length of the heating tube is adapted to the extension length of the lumen.

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