Plastic plate hot cutting machine

Abstract

The invention discloses a plastic plate hot cutting machine, and relates to the field of hot cutting machines, the plastic plate hot cutting machine comprises a machining table and a rack, the rack is provided with a hot cutting mechanism, the hot cutting mechanism comprises a cutter, the cutter comprises two branch cutters arranged side by side, the two branch cutters have two states, one is a cutting state in which the two branch cutters are attached, and the other is a cutting state in which the two branch cutters are attached. And the other state is that the two branch cutters are separated from each other to push the cut workpieces to be correspondingly separated. By means of the arranged cutter, a plastic plate can be subjected to hot cutting, the whole plastic plate (large-size) can be subjected to hot cutting to obtain two plastic plates (small-size), then the cutter is divided into two branch cutters, the two plastic plates obtained through hot cutting are pushed and separated, hot cutting openings are prevented from adhering, and the cutting efficiency is improved. In other words, adhesion is generated between the two plastic plates, and then the hot cutting effect is affected.

Description

Technical Field

[0001] The invention relates to the technical field of heat cutting machines, and in particular to a heat cutting machine for plastic plates. Background Art

[0002] As is known, a plastic sheet heat cutting machine is an industrial mechanical device that uses heat energy for cutting, and is mainly used for heat cutting and forming of plastic sheets. In heat cutting, a whole plastic sheet (large size) is heat cut by a heat cutting tool to obtain two plastic sheets (small size) for subsequent processing operations.

[0003] For example, the Chinese patent document with authorization announcement number CN109465895B, announcement date 2020-10-30, and titled "A Safety Rope Double Blade Hot Cutting Machine" includes a side column, a sensor, a sliding groove, an upper stabilizing column, an arm sliding area, a working area, a mechanical arm, an electric heating plate, a hot cutting knife, a connecting retracting rod, a spiral with rope, a switch, a screw base area, a rope placement area, a controller, a motor, a second sensor, a transition cavity, a drop cavity and a base. The lower end of one side of the side column is connected to the drop cavity through the base, and a transition cavity is arranged above the drop cavity, and an arm sliding area is arranged above the transition cavity; the surface of the arm sliding area is provided with a working area, and a mechanical arm is arranged at the rear end of the arm sliding area, and a second sensor is arranged behind the mechanical arm. The setting of the hot cutting knife, the spiral with rope and the rope placement area of ​​the patent is conducive to increasing the working efficiency of the device, ensuring the smoothness of the device, and bringing a new experience of thermal cutting to the user.

[0004] The disadvantage of the prior art is that when the thickness of the hot cutting tool is thin, the hot cutting opening (the relative distance between the two plastic sheets) generated after hot cutting is narrow. When the hot cutting tool completes hot cutting and separates the two plastic sheets, the residual material generated after hot cutting will remain at the hot cutting opening due to the narrow hot cutting opening, causing the hot cutting opening to stick, that is, the two plastic sheets to stick, thereby affecting the hot cutting effect. Summary of the invention

[0005] The object of the present invention is to provide a plastic sheet heat cutting machine to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic sheet hot cutting machine, comprising a processing table and a frame, the frame is provided with a hot cutting mechanism, the hot cutting mechanism includes a tool, the tool includes two separate tools arranged in parallel, the two separate tools have two states, one is a cutting state in which the two separate tools are in contact with each other, and the other is a separation state in which the two separate tools are separated from each other to push the workpiece to be separated accordingly after cutting.

[0007] In the above-mentioned plastic sheet heat cutting machine, the cutter is driven by a reciprocating drive unit, and the reciprocating drive unit includes an electric cylinder, and the electric cylinder is used to push the cutter to move vertically to achieve the cutting action.

[0008] In the above-mentioned plastic sheet heat cutting machine, the electric cylinder is arranged on the frame, and the cutter is arranged on the telescopic end of the electric cylinder.

[0009] In the above-mentioned plastic sheet hot cutting machine, the tool also includes a dispersion unit, which includes a top plate fixedly connected to the telescopic end of the electric cylinder, two sub-tools slidably connected to the bottom of the top plate, a pushing plate fixedly connected to the top plate, and two inclined surfaces are relatively arranged at the bottom of the pushing plate, and the two inclined surfaces are adapted to the inclined surfaces at the bottom of the two sub-tools. In the cutting state, the two sub-tools are in contact with the pushing plate.

[0010] In the above-mentioned plastic sheet heat cutting machine, a cavity is formed between the two divided cutting tools and the pushing plate, and a plurality of tension springs are arranged in the cavity, and both ends of each of the tension springs are fixedly connected to the two divided cutting tools.

[0011] In the above-mentioned plastic sheet heat cutting machine, when in the cutting state, the tension spring is in a natural state or a contracted state, and the two divided cutting tools are in contact with the pushing plate.

[0012] In the above-mentioned plastic sheet heat cutting machine, a cleaning mechanism is arranged on the frame, and the cleaning mechanism comprises two sliding grooves which are relatively opened on the frame, and a moving plate is slidably connected inside the sliding groove, and the moving plate is in contact with the workpiece.

[0013] In the above-mentioned plastic sheet heat cutting machine, the two sides of the movable plate penetrate through the two oppositely arranged sliding grooves and extend to the outside of the two sliding grooves.

[0014] In the above-mentioned plastic sheet heat cutting machine, a limit spring is arranged on the movable plate, and the limit spring is fixedly connected to the inside of the sliding groove.

[0015] In the above-mentioned plastic sheet heat cutting machine, when the limit spring is in the initial state, the two movable plates abut against each other to form a V-shaped opening, and the V-shaped opening is located directly below the tool, so as to adapt the tool to perform vertical downward heat cutting, that is, to achieve the purpose of giving way to the tool.

[0016] In the above technical scheme, the present invention provides a plastic sheet hot cutting machine, which can hot cut plastic sheets through the set cutting tool, so that a whole plastic sheet (large size) can be hot cut to obtain two plastic sheets (small size), and then the two plastic sheets obtained by hot cutting are pushed and separated by dispersing the cutting tool into two sub-cutting tools to prevent sticking at the hot cut opening, that is, sticking between the two plastic sheets, thereby affecting the hot cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic structural diagram of a plastic sheet heat cutting machine provided by an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 A schematic diagram of the structure of a cutter in a plastic sheet heat cutting machine provided by an embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure of the tool from another perspective; Figure 5 for Figure 3 A schematic diagram of the structure of the tool from another perspective; Figure 6 A structural schematic diagram of another embodiment of a plastic sheet heat cutting machine provided by an embodiment of the present invention; Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at point B in the middle.

[0019] Description of reference numerals: 1. Processing table; 2. Frame; 3. Tool; 4. Sub-tool; 5. Tension spring; 6. Sliding groove; 7. Moving plate; 8. Limit spring; 9. Electric cylinder; 10. Top plate; 11. Pushing plate; 12. L-shaped plate; 13. First swing plate; 14. Second swing plate. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-7As shown, a plastic sheet hot cutting machine provided by an embodiment of the present invention includes a processing table 1 and a frame 2 arranged on the processing table 1, the frame 2 is provided with a hot cutting mechanism, the hot cutting mechanism includes a tool 3, the tool 3 includes two sub-tools 4 arranged in parallel, the two sub-tools 4 have two states, one is a cutting state in which the two sub-tools 4 are in contact with each other, and the other is a separation state in which the two sub-tools 4 are separated from each other to promote the separation of the workpiece after cutting.

[0022] Specifically, the processing table 1 is a main structure, which is fixed on a fixed foundation such as the ground, and the frame 2 is arranged on the processing table 1, and the frame 2 is a frame-type structure. A split hot cutting mechanism is arranged on the frame 2, and the hot cutting mechanism includes a tool 3, and the tool 3 is a hot cutting tool 3, which is used to perform hot cutting on the plastic sheet. The tool 3 is preferably driven by a reciprocating drive unit, and the reciprocating drive unit includes an electric cylinder 9, and the electric cylinder 9 is used to push the tool 3 to move vertically to achieve the cutting action, so that the plastic sheet, that is, the plastic sheet in this embodiment, forms a vertical opening on the plastic sheet, wherein the working direction of the tool 3 is in the vertical direction to achieve hot cutting processing, and the tool 3 is arranged on the telescopic end of the electric cylinder 9, and the electric cylinder 9 is arranged on the frame 2, all of which are prior arts and will not be repeated. The core innovation point of the embodiment of the present invention is that the tool 3 includes two separate tools 4 arranged in parallel, and the two separate tools 4 have a fitted cutting state and two separated states to promote the workpiece after cutting. Specifically, during the hot cutting process, the tool 3 has two motion states, one motion state is a cutting state of an integrated structure to perform hot cutting on the workpiece, such as two sheet-shaped split tools 4 are attached together, and the other motion state is a separation state to push and separate the two workpieces that are divided into two after hot cutting, such as two sheet-shaped split tools 4 are separated to avoid sticking at the hot cutting opening, thereby affecting the hot cutting effect. In an optional embodiment, one of the split tools 4 can be fixed and the other can be configured with a reciprocating drive unit, so that the relative separation of the two split tools 4 can be achieved by driving the split tool 4 away from the fixed split tool 4. Obviously, the two split tools 4 can also be configured with a drive unit to separate the two split tools 4 from each other. It is understood by those skilled in the art that the moving tool needs to be flexibly connected to the tool holder on the corresponding base, which is a prior art and will not be elaborated.

[0023] During specific processing, before hot cutting (the first step), the workpiece is conveyed to the bottom of the tool 3, and the tool 3 is in the cutting state at this time; during hot cutting (the second step), by starting the electric cylinder 9, the tool 3 is driven to move downward, and a hot cutting operation is performed on the workpiece to divide it into two. The tool 3 cuts through the workpiece, thereby completing the hot cutting of the workpiece. In this step, the tool 3 is still in the cutting state, and then enters the third step. At this time, the tool 3 switches from the cutting state to the separation state, that is, the two sub-tools 4 that are attached together move away from each other at this time, so that the two workpieces are passively separated by the two sub-tools 4 respectively, so that the sub-tools 4 push the workpieces to open and move synchronously to avoid residual material at the hot cutting opening to cause sticking; after the hot cutting is completed (the fourth step), the electric cylinder 9 is started again to drive the tool 3 to move upward, and the two sub-tools 4 slide to fit together, that is, restore to the initial state (cutting state) to end the hot cutting operation.

[0024] The beneficial effects of this embodiment are as follows: by means of the provided tool 3, the workpiece can be hot cut, so that a whole workpiece (large size) can be hot cut to obtain two workpieces (small size), and then by dispersing the tool 3 into two sub-tools 4, the two workpieces obtained by hot cutting are pushed and separated to prevent sticking at the hot cutting opening, that is, sticking between the two workpieces, thereby affecting the hot cutting effect.

[0025] In another embodiment provided by the present invention, further, please refer to Figure 3 The tool 3 also includes a dispersion unit, which preferably includes a top plate 10 fixedly connected to the telescopic end of the electric cylinder 9, and a pushing plate 11 is fixedly connected to the bottom of the top plate 10. The sub-tool 4 consists of a vertical portion and a spike portion. The two sub-tools 4 are relatively fitted with the two sides of the pushing plate 11 with their vertical portions, and the two sub-tools 4 are slidably connected to the pushing plate 11. A plurality of tension springs 5 ​​are connected between the vertical portions of the two sub-tools 4. The tension of the tension springs 5 ​​enables the two sub-tools 4 to clamp the two sides of the pushing plate 11. In this embodiment, similarly, the pushing plate 11 is also composed of a vertical portion and a spike portion. In the cutting state, Figure 3 and 5As shown, the axial cross-section of the spikes in the two split cutters 4 is a parallelogram, and the end hypotenuses of the two parallelograms are relatively fitted to form a triangular prism-shaped cavity on the inside, and the spikes of the pushing plate 11 are triangular prism-shaped, that is, the vertical parts of the two split cutters 4 fit with the vertical parts of the pushing plate 11, and the spikes of the two split cutters 4 fit with the spikes of the pushing plate 11. When the cutting state is switched to the separation state, the electric cylinder 9 is started to drive the top plate 10 and the pushing plate 11 to move downward synchronously. After the cutting is completed, the two split cutters 4 passively abut on the processing table 1, so that the two split cutters 4 cannot continue to move downward and the top plate 10 drives the pushing plate 11 to continue to move downward, so that the two split cutters 4 slide away from each other on the pushing plate 11 and the top plate 10, thereby realizing the relative separation of the two split cutters 4. In this embodiment, the bottom of the dividing tool 4 may have a circular chamfer, and its cutting mainly depends on heat rather than sharpness, so as to ensure that its bottom can abut against the processing table 1 for extrusion.

[0026] In this embodiment, a plurality of tension springs 5 ​​are arranged between the two segment cutters 4 and the pushing plate 11, and both ends of the tension spring 5 are fixedly connected to the two segment cutters 4. In this embodiment, in the cutting state, the tension spring 5 is in a tensioned state, so that the two segment cutters 4 and the pushing plate 11 are tightly fitted together by relying on the tension of the tension spring 5. As the electric cylinder 9 continues to run, the two divided tools 4 are driven to abut against the processing table 1, and the two divided tools 4 are forced to slide relative to each other on the pushing plate 11, that is, they slide away from each other on the top plate 10, so that the tension spring 5 is further stretched and deformed, and the two divided tools 4 sliding away from each other push and separate the workpiece that is cut into two by hot cutting to avoid residual material remaining at the hot cutting opening, which causes sticking at the hot cutting opening; by starting the electric cylinder 9 again, the two divided tools 4 are driven to lose their abutment against the processing table 1, and through the rebound of the tension spring 5 and the inclined surface cooperation of the spiked part, the two divided tools 4 are forced to slide relative to each other on the top plate 10, that is, the two divided tools 4 slide and fit with the pushing plate 11 to restore to the cutting state.

[0027] In another embodiment provided by the present invention, in order to further realize cleaning of the tool 3, this embodiment provides a cleaning structure, based on which, a cleaning mechanism is provided on the frame 2, and the cleaning mechanism includes two sliding grooves 6 relatively opened on the frame 2, and two movable plates 7 are slidably connected inside the sliding grooves 6, and the two movable plates 7 are relatively horizontally abutted and arranged, and the two movable plates 7 are arranged in parallel above the workpiece, and the two sides of the movable plates 7 are respectively slidably connected in the two sliding grooves 6, and the ends of the movable plates 7 preferably extend to the outside of the two sliding grooves 6, and a limiting spring 8 is provided on the movable plate 7, and the limiting spring 8 is fixedly connected to the inside of the sliding groove 6. When the limiting spring 8 is in the initial state, the two movable plates 7 are abutted against each other to form a V-shaped opening, and the V-shaped opening is located at the positive position of the tool. Below, so as to adapt the tool 3 to perform vertical downward hot cutting, that is, to achieve the effect of giving way to the tool 3. In this way, during hot cutting, the electric cylinder 9 drives the tool 3 to move downward, so that the bottom of the tool 3 is squeezed at the V-shaped opening between the two movable plates 7, and passes through the V-shaped opening, so that the two limit springs 8 are squeezed to deform, so that the extrusion force generated when the tool 3 moves downward is buffered by the deformation of the limit spring 8; then the tool 3 passes through the V-shaped opening and slides downward, so as to perform hot cutting on the workpiece, and hot cutting the workpiece into two; after hot cutting, by starting the electric cylinder 9, the tool 3 is driven to slide upward between the two movable plates 7 (V-shaped opening), and the end of the movable plate 7 slides and scrapes off the residual workpiece remaining during the hot cutting of the tool 3, thereby realizing the cleaning of the tool 3.

[0028] In this embodiment, since the tool 3 is in contact with the processing table after hot cutting, the two divided tools 4 slide away from each other relative to the pushing plate 11, that is, the workpiece divided into two after hot cutting is pushed away from each other and separated; while pushing the workpiece divided into two to separate, the two moving plates 7 are also pushed away from each other. When the tool 3 moves upward and separates from the moving plate 7, and loses the sliding contact with the two moving plates 7, the two moving plates 7 slide toward each other through the rebound of the limit spring 8 until the two moving plates 7 are in contact with each other.

[0029] Specifically, during hot cutting (the first step), the electric cylinder 9 is started to drive the tool 3 to move downward, and slide against the V-shaped opening between the two movable plates 7, and slide through the V-shaped opening, so that the two movable plates 7 passively slide back and forth above the workpiece to compress the limit spring 8 and deform it; then the tool 3 continues to move downward to complete the hot cutting operation on the workpiece; after the hot cutting is completed (the second step), as the electric cylinder 9 continues to drive the tool 3 to move downward, the tool 3 is forced to slide, that is, the two divided tools 4 slide away from each other relative to the pushing plate 11 to separate, so that the workpiece divided into two after hot cutting is pushed away from each other to separate, so as to avoid residual material at the hot cutting opening, causing sticking at the hot cutting opening, thereby facilitating the removal of the workpiece after hot cutting; the electric cylinder 9 is started again (the third step), the two divided tools 4 are driven upward The movement causes the two divided tools 4 to lose contact with the processing table 1, and the two divided tools 4 are forced to slide relatively on the top plate 10 through the rebound of the tension spring 5, that is, the two divided tools 4 slide and fit with the pushing plate 11, thereby restoring from the separation state to the cutting state. At the same time, the two movable plates 7 are driven to relatively fit the two sides of the tool 3 through the rebound of the limit spring 8. In the process of the tool 3 moving upward, the two movable plates 7 are slid and abutted against the two sides of the tool 3, thereby sliding and scraping off the residual workpiece material remaining in the hot cutting operation of the tool 3, so as to realize the cleaning of the tool 3; by repeatedly starting the electric cylinder 9 (the fourth step), the tool 3 is forced to repeatedly slide and abut or separate with the two movable plates 7, and the residual workpiece material remaining on the tool 3 is repeatedly slid and scraped off until the cleaning is completed, thereby improving the cleaning effect of the tool 3.

[0030] For further information, see Figure 6-Figure 7 When the residual material is cleaned after the hot cutting of the tool 3, in the above embodiment, the two movable plates 7 are slidably abutted against the two sides of the tool 3 to clean the residual material on the tool 3. Although the residual material (molten state) after the hot cutting of the tool 3 can be scraped off by sliding, part of the residual material will fall onto the surface of the workpiece along the side wall of the movable plate 7 during the scraping. Moreover, since the residual material has not been completely cooled at this time, it is easy to adhere to the workpiece again, increasing the difficulty of later cleaning.

[0031] Therefore, based on the above description, in order to prevent the residual material after hot cutting from falling on the surface of the workpiece. This embodiment provides another cleaning structure. On the basis of the above cleaning structure, four groups of auxiliary mechanisms are arranged in pairs inside the frame 2, each of which includes an L-shaped plate 12, which is fixed to the movable plate 7. The frame 2 is internally connected to a first swing plate 13 and a second swing plate 14 through two rotating shafts. The first swing plate 13 is arranged obliquely, and the lower end of the first swing plate 13 is located on the vertical movement stroke of the top plate 10. The other higher end of the first swing plate 13 abuts against the upper end of the second swing plate 14, and the two are in abutment. The bottom of the second swing plate 14 is in abutment with the L-shaped plate 12. The purpose of setting the L-shaped plate 12 is to limit the second swing plate 14 in the rotation and swing, so that the second swing plate 14 is always in abutment with the L-shaped plate 12, so that the second swing plate 14 can drive the movable plate 7 and the tool 3 to move away from each other. A torsion spring (not shown) is sleeved inside the rotating shaft of the first swing plate 13 . In an initial state, the first swing plate 13 is in a tilted state.

[0032] Specifically, during hot cutting (the first step), the electric cylinder 9 is started to drive the tool 3 to move downward to slide through the V-shaped opening between the two movable plates 7, so that the two movable plates 7 passively slide away from each other, and at the same time drive the L-shaped plate 12 and the second swing plate 14 to slide relative to each other; when the tool 3 moves downward, it drives the top plate 10 to slide inside the frame 2, and squeezes the lower end of the first swing plate 13, and its higher end swings upward, so that the first swing plate 13 rotates and swings alone without squeezing the second swing plate 14, until the top plate 10 pushes through the first swing plate 13, and the first swing plate 13 is restored to its initial state through the rebound of the torsion spring in the first swing plate 13, and the hot cutting operation of the workpiece is completed by the continued downward movement of the tool 3; After hot cutting (the second step), the electric cylinder 9 is started to continue to drive the tool 3 to move downward, forcing the tool 3 to slide, that is, the two sub-tools 4 slide away from each other relative to the pushing plate 11, that is, the two sub-tools 4 separate and push the workpieces that are split into two after hot cutting to slide away from each other, so as to avoid residual material remaining at the hot cutting openings of the two workpieces, causing sticking at the hot cutting openings; The electric cylinder 9 is started again (the third step), so that the two sub-tools 4 lose contact with the processing table 1, and the two sub-tools 4 slide relatively on the top plate 10 through the rebound of the tension spring 5, that is, the two sub-tools 4 slide and fit with the pushing plate 11, thereby returning from the separation state to the cutting state; When the electric cylinder 9 is started (the fourth step), the tool 3 is driven to move upward as a whole, so that the top plate 10 abuts against the first swing plate 13, and the first swing plate 13 is squeezed and rotated. At this time, the lower end of the first swing plate 13 is upward, and the higher end is downward. This action will squeeze the higher end of the second swing plate 14, so that the first swing plate 13 drives the second swing plate 14 to rotate and swing. The swing of the second swing plate 14 causes its lower end to squeeze the L-shaped plate 12. The movement of the L-shaped plate 12 drives the moving plate 7 to move in the direction away from the dividing tool 4, that is, it loses the previous state of sliding abutment with the dividing tool 4. At this time, the residual material remaining on the tool 3 is not scraped off when the moving plate 7 slides and abuts, but sticks to the tool 3. Through the process of the tool 3 continuing to move upward, the residual material is cooled, and until the tool 3 moves to the top of the workpiece, that is, the top plate 10 passes through the first swing plate 13; By starting the electric cylinder 9 (the fifth step), the top plate 10 slides downward in the frame 2, driving the tool 3 to move downward and slide against the V-shaped opening between the two movable plates 7, so that the residual material remaining on the tool 3 is slid and scraped off, and the residual material stays on the upper surface of the movable plate 7, so that the scraped residual material can be centrally cleaned and the cooling time of the residual material is increased.

[0033] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plastic sheet heat cutting machine, comprising a processing table and a frame, wherein a heat cutting mechanism is arranged on the frame, wherein the heat cutting mechanism comprises a cutter, wherein: The tool comprises two sub-tools arranged in parallel, and the two sub-tools have two states, one is a cutting state in which the two sub-tools are in contact with each other, and the other is a separation state in which the two sub-tools are separated from each other to push the workpiece to be separated accordingly after cutting.

2. A plastic sheet heat cutting machine according to claim 1, characterized in that: The cutter is driven by a reciprocating drive unit, which includes an electric cylinder for driving the cutter to move vertically to achieve a cutting action.

3. A plastic sheet heat cutting machine according to claim 2, characterized in that: The electric cylinder is arranged on the frame, and the tool is arranged on the telescopic end of the electric cylinder.

4. A plastic sheet heat cutting machine according to claim 3, characterized in that: The tool also includes a dispersion unit, which includes a top plate fixedly connected to the telescopic end of the electric cylinder, two sub-tools slidably connected to the bottom of the top plate, a pushing plate fixedly connected to the top plate, and two inclined surfaces are relatively arranged at the bottom of the pushing plate, and the two inclined surfaces are adapted to the inclined surfaces at the bottom of the two sub-tools. In the cutting state, the two sub-tools are in contact with the pushing plate.

5. The plastic sheet heat cutting machine according to claim 4, characterized in that: A cavity is formed between the two divided cutting tools and the pushing plate. A plurality of tension springs are arranged in the cavity. Two ends of each of the tension springs are fixedly connected to the two divided cutting tools.

6. A plastic sheet heat cutting machine according to claim 5, characterized in that: In the cutting state, the tension spring is in a natural state or a contracted state, and the two divided cutting tools are in contact with the pushing plate.

7. The plastic sheet heat cutting machine according to claim 1, characterized in that: The frame is provided with a cleaning mechanism, which comprises two sliding grooves which are relatively opened on the frame, and a moving plate is slidably connected inside the sliding groove, and the moving plate is fitted with the workpiece.

8. The plastic sheet heat cutting machine according to claim 7, characterized in that: Both sides of the movable plate penetrate through two sliding grooves arranged opposite to each other and extend to the outside of the two sliding grooves.

9. The plastic sheet heat cutting machine according to claim 7, characterized in that: The movable plate is provided with a limit spring, and the limit spring is fixedly connected to the interior of the sliding groove.

10. A plastic sheet heat cutting machine according to claim 9, characterized in that: When the limit spring is in the initial state, the two movable plates abut against each other to form a V-shaped opening, and the V-shaped opening is located directly below the tool, so as to adapt the tool to perform vertical downward hot cutting, that is, to achieve the tool giving way.

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