Cutting mechanism for bottom ironing machine

Abstract

The utility model provides a cutting mechanism for a bottom ironing machine, belongs to the technical field of plastic product production, and solves the technical problems that the production quality is influenced due to the fact that two ends of an existing cut part are not clamped and fixed and the like. The cutting mechanism for the bottom ironing machine comprises a workbench, a conveying mechanism is arranged on the workbench, lower supports are fixed to the front portion and the rear portion of the top of the workbench respectively, upper supports are fixed to the tops of the lower supports, electric telescopic rods are fixed to the upper supports, a connecting plate is fixed to the movable ends of the electric telescopic rods, and a first connecting rod is fixed to the middle of the bottom of the connecting plate; an electric heating knife is fixed to the bottom end of the rear first connecting rod, a cutting part is arranged at the bottom end of the front first connecting rod, and pressing mechanisms are arranged at the front end and the rear end of the bottom of the connecting plate and comprise second connecting rods. The device has the advantages of pressing the front and rear ends of the cut-off position and the bottom scalding position, avoiding displacement of the plastic bag in the cutting or bottom scalding process, improving the quality of finished products and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic product production, and relates to a cutting mechanism for plastic product production, in particular to a cutting mechanism for a sole ironing machine. Background Art

[0002] The bottom ironing machine is a key piece of equipment on a plastic bag production line. It is primarily used for heat treatment and curing of the bottom of plastic film. This technology ensures the seal and neatness of the bottom of the plastic bag, improving the overall appearance and quality of the finished product. Its performance directly affects the efficiency and quality of plastic bag production. The cutting mechanism of the bottom ironing machine is a key component used to complete the transverse cutting of the plastic bag or composite bag after the bottom is sealed to form an individual packaging bag.

[0003] A search revealed a Chinese patent document describing a plastic bag hot-drying and segmenting device [Application Number: 202123127165.X; Publication Number: CN217803442U]. This cutting mechanism utilizes a motor to drive a second rotating rod, which, in conjunction with a connecting rod, a movable sleeve, and a first rotating rod, enables a cutting blade to perform a reciprocating cutting operation with a rotating base, facilitating the segmentation of plastic bags. The grooves in the cutting base correspond to the cutting blades, improving cutting efficiency.

[0004] Although the cutting device disclosed in this patent realizes reciprocating cutting to improve efficiency, the two ends of the cut part are not clamped and fixed during the cutting process, which causes the cut part of the plastic bag to slide easily or it is difficult to form relative force during the cutting process, resulting in cutting failure, resulting in obvious errors in the length of the produced plastic bags, and affecting the production quality. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and propose a cutting mechanism for a bottom ironing machine. The technical problem to be solved by the utility model is: how to prevent plastic bags from deflecting during the cutting or bottom ironing process.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A cutting mechanism for a sole ironing machine includes a workbench, a transmission mechanism is provided on the workbench, lower brackets are fixed to the front and rear of the top of the workbench, an upper bracket is fixed to the top of the lower bracket, an electric telescopic rod is fixed to the upper bracket, a connecting plate is fixed to the movable end of the electric telescopic rod, a first connecting rod is fixed to the middle of the bottom of the connecting plate, an electric heating knife is fixed to the bottom end of the first connecting rod at the rear, and a cutting portion is provided at the bottom end of the first connecting rod at the front;

[0008] A pressing mechanism is provided at both the front and rear ends of the bottom of the connecting plate, and the pressing mechanism includes a second connecting rod, a circular hole is provided at the bottom of the second connecting rod, a limiting groove is provided at the bottom of the second connecting rod that is connected to the top of the circular hole, a limiting plate is slidably connected in the limiting groove, and a movable rod is integrally formed at the bottom of the limiting plate and is passed through the circular hole. A pressure block is fixed at the bottom of the movable rod, and a spring is fixed between the pressure block and the second connecting rod.

[0009] The working principle of the utility model is as follows: the transmission mechanism is used for input and output of plastic bags. During the transmission of plastic bags, the electric telescopic rod is in a retracted state. At this time, the pressing block and the electric hot knife are away from the workbench. When the bags are transmitted to the ironing position or the cutting position, the electric telescopic rod is operated, and the movable part of the electric telescopic rod drives the connecting plate to move downward. The first connecting rod and the second connecting rod drive the cutting part, the electric hot knife and the pressing block to move downward. The pressing block causes the limiting plate to be stuck at the top of the circular hole in the limiting groove by its own weight, so that the pressing block is located below the horizontal plane where the rolling knife or the electric hot knife is located. The pressing block first contacts the plastic bag, and presses the front and rear parts of the ironing or cutting part of the plastic bag on the workbench surface to prevent it from moving. After the pressing block contacts the plastic bag, the second connecting rod moves downward. The movable end of the electric telescopic rod continues to move downward, and the movable rod slides in the circular hole to adapt to the reduction in the distance between the second connecting rod and the pressure block. The restoring force of the spring applies a downward force to the pressure block, increasing the downward pressure of the pressure block on the plastic bag. The movable end of the electric telescopic rod continues to move downward, and the electric hot knife contacts the plastic bag to iron the bottom or the cutting part contacts the plastic bag to cut. After the ironing or cutting is completed, the electric telescopic rod retracts, and the second connecting rod moves upward with the movable end of the electric telescopic rod through the connecting plate. The limit plate moves relatively in the limit groove until the limit plate contacts the bottom of the limit groove and moves upward with the second connecting rod, driving the pressure block to move upward away from the plastic bag, so that the plastic bag moves to the next production point under the operation of the transmission mechanism.

[0010] The second connecting rod is fixedly connected to the connecting plate, and the first connecting rod and the second connecting rod are both vertically inserted into the through hole opened at the top of the lower bracket.

[0011] With the above structure, the electric telescopic rod drives the connecting plate to move up and down, and the connecting plate drives the first connecting rod and the second connecting rod to move up and down. During the up and down movement of the first connecting rod and the second connecting rod, the clock slides in the through hole at the top of the lower bracket, and the support points for the first connecting rod and the second connecting rod are increased to make the sliding trajectory more stable.

[0012] The transmission mechanism includes a fixed plate fixed on the top of the workbench, wherein a first motor is fixed on one of the fixed plates away from the workbench, a driving roller is fixed to the output end of the first motor, the driving roller is rotatably connected to two fixed plates symmetrically distributed on the left and right, and a driven roller is rotatably connected between the other two fixed plates, a first sprocket is fixed at the position where the driving roller extends out of the fixed plate, and a second sprocket is fixed at the position where the driven roller extends out of the fixed plate, and a chain is meshed with the first sprocket and the second sprocket.

[0013] With the above structure, the plastic bag that has not yet been ironed is wound on the driving roller in a roll shape, and passes through the electric heating knife in the two lower brackets and the bottom of the cutting part in turn for ironing and cutting. The processed plastic bag passes under the driven roller, and the first motor drives the driving roller to rotate, and the driving roller drives the first sprocket to rotate. The first sprocket drives the second sprocket to rotate through the chain, and the second sprocket drives the driven roller to rotate. The driving roller drives the plastic bag into the electric heating knife and the bottom of the pressing plate through rotation. The plastic bag cut by the roller is brought out of the workbench by the driven roller due to the friction between the driven roller and the driven roller. The driven roller is provided with an external rubber tube, and there is only a small gap between the rubber tube and the workbench. The driven roller contacts the plastic bag cut by the cutting part to generate friction, and the plastic bag is rolled out. The other end of the cut plastic bag is controlled by the operator.

[0014] The two lower brackets are both arranged between the driven roller and the driving roller.

[0015] With the above structure, the plastic bag starts from the driving roller, passes through the two lower brackets and reaches the driven roller. There is space between the two lower brackets and the driven roller and the driving roller for manual intervention, which facilitates rapid correction when an accident occurs in the equipment transmission mechanism.

[0016] Slide grooves are provided on both sides of the inner wall of the lower bracket, and the left and right ends of the electric heating knife are slidably connected to the slide grooves.

[0017] With the above structure, the electric telescopic rod drives the first connecting rod to move up and down, and the first connecting rod drives the electric hot knife to move up and down to perform the pressing operation on the bottom of the plastic bag. The electric hot knife slides in the slide groove at the same time during the up and down movement, which increases the limit on the movement trajectory of the electric hot knife, making the movement of the electric hot knife more stable. At the same time, after the pressing mechanism presses down and positions the front and rear ends of the bottom of the plastic bag, the bottom position is more accurate, the operation is more refined, and the quality of the finished product is improved.

[0018] The cutting part includes an installation angle piece, and a pressure plate and a slide rail are respectively fixed at the front and rear ends of the bottom of the installation angle piece. A second motor is fixed on one side of the slide rail, a screw is fixed on the output end of the second motor, a slider is threaded on the screw, a mounting piece is fixed at the bottom of the slider, a third motor is fixed on the end of the mounting piece away from the pressure plate, and a hob is fixed on the output end of the third motor.

[0019] With the above structure, after the pressure blocks in the two pressing mechanisms in front and behind the cutting part press the front and rear positions of the cutting point, the installation angle piece moves down following the first connecting rod, and the hob and the pressure plate both contact the plastic bag. The pressure plate positions the plastic bag close to the cutting point, and the second motor drives the lead screw to rotate. The slider moves left and right linearly under the limit of the slide rail through the thread transmission with the lead screw. At the same time, the third motor drives the hob to rotate in the installation piece, and the rotating hob cuts the plastic bag.

[0020] The top center of the mounting angle piece is fixed to the bottom end of the first connecting rod. A cutting groove is provided on the top of the workbench. The cutting groove is parallel to the lead screw and is provided at the bottom of the hob.

[0021] With the above structure, during the hob cutting process, the hob rolls in the space inside the cutting groove, providing operating space for the hob to improve the cutting quality.

[0022] Compared with the existing technology, the cutting mechanism of the bottom ironing machine has the following advantages:

[0023] 1. By setting a pressing mechanism, the pressing block can press the front and back ends of the hot bottom or cut part of the plastic bag before pressing or cutting, so as to avoid displacement of the plastic bag during the pressing or cutting process and improve the quality of the finished product.

[0024] 2. By setting the limit plate, limit groove, round hole, movable rod and spring, the electric hot knife of the pressing block can contact the plastic bag with the hob in advance, without the need for an electric telescopic rod, which saves energy and reduces costs. At the same time, the spring restoring force is used to increase the force of the pressing block on the plastic bag, thereby improving the stability of the plastic bag during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] Figure 2 It is a structural diagram of the pressing mechanism part of the utility model.

[0027] Figure 3 It is a structural diagram of the transmission mechanism part of the utility model.

[0028] Figure 4 It is a structural diagram of the electric heating knife part of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the cutting part of the utility model.

[0030] Figure 6 It is a structural diagram of the hob part in the utility model.

[0031] In the figure, 1. workbench; 2. transmission mechanism; 201. fixed plate; 202. first motor; 203. driving roller; 204. first sprocket; 205. driven roller; 206. second sprocket; 207. chain; 301. lower bracket; 302. upper bracket; 4. electric telescopic rod; 5. connecting plate; 6. first connecting rod; 7. pressing mechanism; 701. second connecting rod; 702. limiting groove; 703. round hole; 704. limiting plate; 705. movable rod; 706. pressing block; 707. spring; 8. electric hot knife; 9. cutting part; 901. mounting angle piece; 902. pressing plate; 903. slide rail; 904. second motor; 905. lead screw; 906. slider; 907. mounting part; 908. third motor; 909. hob. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figures 1-6As shown, the cutting mechanism of the ironing machine includes a workbench 1, a transmission mechanism 2 is provided on the workbench 1, lower brackets 301 are fixed to the front and rear of the top of the workbench 1, an upper bracket 302 is fixed to the top of the lower bracket 301, an electric telescopic rod 4 is fixed to the upper bracket 302, a connecting plate 5 is fixed to the movable end of the electric telescopic rod 4, a first connecting rod 6 is fixed to the middle of the bottom of the connecting plate 5, an electric heating knife 8 is fixed to the bottom end of the rear first connecting rod 6, a cutting portion 9 is provided at the bottom end of the front first connecting rod 6, a pressing mechanism 7 is provided at both the front and rear ends of the bottom of the connecting plate 5, and the pressing mechanism 7 includes a second connecting rod 701, a round hole 703 is opened at the bottom of the second connecting rod 701, and a round hole 703 is opened at the bottom of the second connecting rod 701. The top of the bag 701 is provided with a limiting groove 702 connected to the top of the circular hole 703, and the limiting plate 704 is slidably connected in the limiting groove 702. The bottom of the limiting plate 704 is integrally formed with a movable rod 705 that passes through the circular hole 703. A pressure block 706 is fixed to the bottom of the movable rod 705. A spring 707 is fixed between the pressure block 706 and the second connecting rod 701. In this embodiment, the electric telescopic rod 4 and the electric hot knife 8 (only hot pressing without cutting function) are both existing technologies. The transmission mechanism 2 is used for the input and output of plastic bags. During the transmission of plastic bags, the electric telescopic rod 4 is in a retracted state. At this time, the pressure block 706 and the electric hot knife 8 are away from the workbench 1. When the pressure block 706 and the electric hot knife 8 are transmitted to the hot pressing position or the cutting position, the electric telescopic rod 4 is operated. Rod 4, the movable part of the electric telescopic rod 4 drives the connecting plate 5 to move downward, and the first connecting rod 6 and the second connecting rod 701 drive the cutting part 9, the electric hot knife 8 and the pressing block 706 to move downward. The pressing block 706 uses its own weight to make the limiting piece 704 stuck in the top of the circular hole 703 in the limiting groove 702, so that the pressing block 706 is located below the horizontal plane where the hob 909 or the electric hot knife 8 is located. The pressing block 706 first contacts the plastic bag, and presses the front and rear parts of the hot or cut part of the plastic bag on the surface of the workbench to prevent it from moving. After the pressing block 706 contacts the plastic bag, the second connecting rod 701 continues to move downward with the movable end of the electric telescopic rod 4, and the movable rod 705 slides in the circular hole 703 to adapt to the second connecting rod 701 and the pressing block 706. As the distance decreases, the restoring force of the spring 707 applies a downward force to the pressing block 706, increasing the downward pressure of the pressing block 706 on the plastic bag. The movable end of the electric telescopic rod 4 continues to move downward, and the electric hot knife 8 contacts the plastic bag to iron the bottom or the cutting part 9 contacts the plastic bag to cut. After ironing or cutting is completed, the electric telescopic rod 4 retracts, and the second connecting rod 701 moves upward with the movable end of the electric telescopic rod 4 through the connecting plate 5. The limiting piece 704 moves relatively in the limiting groove 702 until the limiting piece 704 contacts the bottom of the limiting groove 702 and moves upward with the second connecting rod 701, driving the pressing block 706 to move upward away from the plastic bag, so that the plastic bag moves to the next production point under the operation of the transmission mechanism 2.

[0034] The second connecting rod 701 is fixedly connected to the connecting plate 5, and the first connecting rod 6 and the second connecting rod 701 are both vertically inserted into the through hole opened at the top of the lower bracket 301. In this embodiment, the electric telescopic rod 4 drives the connecting plate 5 to move up and down, and the connecting plate 5 drives the first connecting rod 6 and the second connecting rod 701 to move up and down. During the up and down movement of the first connecting rod 6 and the second connecting rod 701, the clock slides in the through hole at the top of the lower bracket 301, and the support points for the first connecting rod 6 and the second connecting rod 701 are increased to make the sliding trajectory more stable.

[0035] The transmission mechanism 2 includes a fixed plate 201 fixed to the top of the workbench 1, wherein a first motor 202 is fixed to one side of the fixed plates 201 away from the workbench 1, a driving roller 203 is fixed to the output end of the first motor 202, the driving roller 203 is rotatably connected to two fixed plates 201 symmetrically distributed on the left and right, and a driven roller 205 is rotatably connected between the other two fixed plates 201, a first sprocket 204 is fixed to the position where the driving roller 203 extends out of the fixed plate 201, a second sprocket 206 is fixed to the position where the driven roller 205 extends out of the fixed plate 201, a chain 207 is meshed with the first sprocket 204 and the second sprocket 206, in this embodiment, the first motor 202 is the prior art, and the plastic bag that has not yet been ironed is wound around the driving roller 203 in a roll shape, and passes through the motors in the two lower brackets 301 in turn. The hot knife 8 and the bottom of the cutting part 9 are ironed and cut, and the processed plastic bag passes under the driven roller 205, and the first motor 202 drives the driving roller 203 to rotate, and the driving roller 203 drives the first sprocket 204 to rotate, and the first sprocket 204 drives the second sprocket 206 to rotate through the chain 207, and the second sprocket 206 drives the driven roller 205 to rotate. The driving roller 203 drives the plastic bag to enter the bottom of the electric hot knife 8 and the pressing plate 902 by rotating. The plastic bag cut by the rolling cutter 909 is brought out of the workbench 1 by the driven roller 205 due to the friction between the driven roller 205 and the driven roller 205. The driven roller 205 is provided with an external rubber tube, and there is only a small gap between the rubber tube and the workbench 1. The driven roller 205 contacts the plastic bag cut by the cutting part to generate friction, and the plastic bag is rolled out. The other end of the cut plastic bag is controlled by the operator.

[0036] The two lower brackets 301 are both arranged between the driven roller 205 and the driving roller 203. In this embodiment, the plastic bag starts from the driving roller 203, passes through the two lower brackets 301 and reaches the driven roller 205. There is space between the two lower brackets 301 and the driven roller 205 and the driving roller 203 that can be used for manual intervention, so as to facilitate rapid correction when an accident occurs in the equipment transmission mechanism.

[0037] Slide grooves are provided on both sides of the inner wall of the lower bracket 301, and the left and right ends of the electric heating knife 8 are slidably connected to the slide grooves. In this embodiment, the electric heating knife 8 is the existing technology. The electric telescopic rod 4 drives the first connecting rod 6 to move up and down, and the first connecting rod 6 drives the electric heating knife 8 to move up and down to perform the pressing operation on the bottom of the plastic bag. The electric heating knife 8 slides in the slide groove at the same time during the up and down movement, which increases the limit on the movement trajectory of the electric heating knife 8, making the movement of the electric heating knife 8 more stable. At the same time, after the pressing mechanism 7 presses down and positions the front and rear ends of the bottom of the plastic bag, the bottom position is more accurate, the operation is more refined, and the quality of the finished product is improved.

[0038] The cutting portion 9 includes an installation angle piece 901, and a pressure plate 902 and a slide rail 903 are fixed to the front and rear ends of the bottom of the installation angle piece 901 respectively. A second motor 904 is fixed to one side of the slide rail 903, and a screw 905 is fixed to the output end of the second motor 904. A slider 906 is threadedly connected to the screw 905. A mounting piece 907 is fixed to the bottom of the slider 906. A third motor 908 is fixed to the end of the mounting piece 907 away from the pressure plate 902, and a hob 909 is fixed to the output end of the third motor 908. In this embodiment, the second motor 904 and the third motor 908 are both prior art and will not be repeated hereinafter. As described above, after the pressure blocks 706 in the two pressing mechanisms 7 before and after the cutting part 9 press the front and rear positions of the cutting part, the installation angle piece 901 moves down following the first connecting rod 6, and the roller 909 and the pressure plate 902 both contact the plastic bag. The pressure plate 902 positions the plastic bag close to the cutting part, and the second motor 904 drives the lead screw 905 to rotate. The slider 906 moves left and right in a straight line under the limit of the slide rail 903 through the threaded transmission with the lead screw 905. At the same time, the third motor 908 drives the roller 909 to rotate in the installation piece 907, and the rotating roller 909 cuts the plastic bag.

[0039] The top center of the mounting angle piece 901 is fixed to the bottom end of the first connecting rod 6. A cutting groove is provided on the top of the workbench 1. The cutting groove is parallel to the lead screw 905 and is provided at the bottom of the hob 909. In this embodiment, during the cutting process of the hob 909, it rolls in the space inside the cutting groove, providing operating space for the hob 909 to improve the cutting quality.

[0040] The working principle of the utility model is as follows: the plastic bag that has not yet been ironed is wound on the driving roller 203 in a roll shape, and passes through the electric heating knife 8 and the bottom of the cutting part 9 in the two lower brackets 301 in turn for ironing and cutting. The processed plastic bag passes under the driven roller 205, and the first motor 202 drives the driving roller 203 to rotate, and the driving roller 203 drives the first sprocket 204 to rotate, and the first sprocket 204 drives the second sprocket 206 to rotate through the chain 207, and the second sprocket 206 drives the driven roller 205 to rotate. The driving roller 203 drives the plastic bag to enter the electric heating knife 8 and the bottom of the pressing plate 902 through the rotation. The plastic bag cut by the rolling cutter 909 is brought out of the workbench 1 by the driven roller 205 due to the friction between the driven roller 205 and the plastic bag. During the process, the electric telescopic rod 4 is in a retracted state. At this time, the pressing block 706 and the electric hot knife 8 are away from the workbench 1. When they are transferred to the ironing position or the cutting position, the electric telescopic rod 4 is operated. The movable part of the electric telescopic rod 4 drives the connecting plate 5 to move downward, and the first connecting rod 6 and the second connecting rod 701 drive the cutting part 9, the electric hot knife 8 and the pressing block 706 to move downward. The pressing block 706 uses its own weight to make the limiting plate 704 stuck in the top of the circular hole 703 in the limiting groove 702, so that the pressing block 706 is located below the horizontal plane where the rolling cutter 909 or the electric hot knife 8 is located. The pressing block 706 first contacts the plastic bag, and presses the front and rear parts of the ironing or cutting part of the plastic bag on the workbench surface to prevent it from moving. After the pressing block 706 contacts the plastic bag, the second connecting rod 701 continues to move downward with the movable end of the electric telescopic rod 4. The movable rod 705 slides in the circular hole 703 to adapt to the reduction in the distance between the second connecting rod 701 and the pressure block 706. The restoring force of the spring 707 applies a downward force to the pressure block 706, increasing the downward pressure of the pressure block 706 on the plastic bag. The movable end of the electric telescopic rod 4 continues to move downward, and the electric telescopic rod 4 drives the first connecting rod 6 to move up and down. The first connecting rod 6 drives the electric hot knife 8 to move up and down to perform the pressing operation on the bottom of the plastic bag. The electric hot knife 8 slides in the slide groove at the same time during the up and down movement. The installation angle piece 901 follows the first connecting rod 6 to move downward, and the roller 909 and the pressure plate 902 both contact the plastic bag. The pressure plate 902 positions the plastic bag close to the cutting position, and the second motor 904 drives the screw 905 to rotate, and the slider 906 passes Through the threaded transmission of the lead screw 905, it performs left and right linear motion under the limit of the slide rail 903. At the same time, the third motor 908 drives the hob 909 to rotate in the mounting part 907. The rotating hob 909 cuts the plastic bag. The electric hot knife 8 contacts the plastic bag to iron the bottom or the cutting part 9 contacts the plastic bag to cut. After the ironing or cutting is completed, the electric telescopic rod 4 is retracted, and the second connecting rod 701 moves up with the movable end of the electric telescopic rod 4 through the connecting plate 5. The limiting piece 704 moves relatively in the limiting groove 702 until the limiting piece 704 contacts the bottom of the limiting groove 702 and moves upward with the second connecting rod 701, driving the pressing block 706 to move upward away from the plastic bag, so that the plastic bag moves to the next production point under the operation of the transmission mechanism 2.

[0041] In summary, by providing a pressing mechanism, the front and rear ends of the cutting and ironing parts can be pressed, thereby preventing the plastic bag from shifting during the cutting or ironing process and improving the quality of the finished product.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A cutting mechanism for a sole ironing machine, comprising a workbench (1), characterized in that: The workbench (1) is provided with a transmission mechanism (2), and lower brackets (301) are fixed to the front and rear of the top of the workbench (1), an upper bracket (302) is fixed to the top of the lower bracket (301), an electric telescopic rod (4) is fixed to the upper bracket (302), a connecting plate (5) is fixed to the movable end of the electric telescopic rod (4), a first connecting rod (6) is fixed to the middle of the bottom of the connecting plate (5), an electric heating knife (8) is fixed to the bottom end of the first connecting rod (6) at the rear, and a cutting portion (9) is provided at the bottom end of the first connecting rod (6) at the front; The front and rear ends of the bottom of the connecting plate (5) are both provided with a pressing mechanism (7), and the pressing mechanism (7) includes a second connecting rod (701), a circular hole (703) is provided at the bottom of the second connecting rod (701), a limiting groove (702) connected to the top of the circular hole (703) is provided at the bottom of the second connecting rod (701), a limiting plate (704) is slidably connected in the limiting groove (702), and a movable rod (705) is integrally formed at the bottom of the limiting plate (704) and is arranged in the circular hole (703), a pressing block (706) is fixed at the bottom of the movable rod (705), and a spring (707) is fixed between the pressing block (706) and the second connecting rod (701).

2. A cutting mechanism for a sole ironing machine according to claim 1, characterized in that: The second connecting rod (701) is fixedly connected to the connecting plate (5), and the first connecting rod (6) and the second connecting rod (701) are both vertically inserted into a through hole opened at the top of the lower bracket (301).

3. The cutting mechanism for a sole ironing machine according to claim 1, characterized in that: The transmission mechanism (2) comprises a fixed plate (201) fixed on the top of the workbench (1), a first motor (202) being fixed on one side of the fixed plate (201) away from the workbench (1), a driving roller (203) being fixed on the output end of the first motor (202), the driving roller (203) being rotatably connected to two fixed plates (201) symmetrically distributed therebetween, a driven roller (205) being rotatably connected between the other two fixed plates (201), a first sprocket (204) being fixed to a position where the driving roller (203) extends out of the fixed plate (201), a second sprocket (206) being fixed to a position where the driven roller (205) extends out of the fixed plate (201), and a chain (207) being meshed with the first sprocket (204) and the second sprocket (206).

4. A cutting mechanism for a sole ironing machine according to claim 3, characterized in that: The two lower brackets (301) are both arranged between the driven roller (205) and the driving roller (203).

5. The cutting mechanism for a sole ironing machine according to claim 1, characterized in that: Slide grooves are provided on both sides of the inner wall of the lower bracket (301), and the left and right ends of the electric heating knife (8) are slidably connected to the slide grooves.

6. The cutting mechanism for a sole ironing machine according to claim 1, characterized in that: The cutting portion (9) comprises an installation angle piece (901), a pressure plate (902) and a slide rail (903) are fixed to the front and rear ends of the bottom of the installation angle piece (901), a second motor (904) is fixed to one side of the slide rail (903), a lead screw (905) is fixed to the output end of the second motor (904), a slider (906) is threadedly connected to the lead screw (905), a mounting piece (907) is fixed to the bottom of the slider (906), a third motor (908) is fixed to the end of the mounting piece (907) away from the pressure plate (902), and a hob (909) is fixed to the output end of the third motor (908).

7. The cutting mechanism for a sole ironing machine according to claim 6, characterized in that: The top center of the mounting angle piece (901) is fixed to the bottom end of the first connecting rod (6), and a cutting groove is provided on the top of the workbench (1). The cutting groove is parallel to the lead screw (905) and is provided at the bottom of the hob (909).

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