A kind of drawing setting equipment for degradable plastic film production

Abstract

The present application relates to the technical field of stretch setting, and specifically discloses a stretch setting equipment for degradable plastic film production, which comprises a frame seat, a first convex groove is formed in the upper right side of the frame seat, roller shaft assemblies are slidably installed in the first convex groove, the roller shaft assembly comprises a sliding base, the lower end of the sliding base is slidably installed in the first convex groove, and heating rollers in a symmetrical state are rotatably installed between the two sliding bases; the roller shaft assemblies are slidably arranged in the first convex groove on the upper right side of the frame seat, the pulling assemblies are slidably installed in the second convex groove on the upper left side, and the heating assemblies with the guard plates and the auxiliary rollers are fixed in the middle, so that the problems of the fixed roller, the limited adjustment of the clamping part and the easy deviation of the film in the heating process of the existing equipment are effectively solved, the roller shaft assemblies can be slid along the first convex groove to adjust the position, and the conveying and preheating requirements of different specifications of films can be met.

Description

Technical Field

[0001] This invention relates to the field of stretching and shaping technology, and more particularly to a stretching and shaping device for the production of biodegradable plastic films. Background Technology

[0002] In the production of biodegradable plastic films, stretching and shaping is a key process that determines the final performance and quality of the film.

[0003] In existing stretching and shaping equipment, the rollers used for conveying and preheating the film are mostly fixed installation structures, which cannot be flexibly adjusted according to the film width, thickness and other specifications. This results in poor adaptability when producing films of different specifications and easily leads to uneven stretching of the film edges.

[0004] Meanwhile, the heating structure in the equipment lacks targeted protective and guiding components, making the film prone to displacement and wrinkling during the heating and stretching process, which affects the stretching accuracy.

[0005] In addition, the components used to stretch the film have insufficient flexibility in adjusting the position of the clamping parts, making it difficult to adapt to the clamping requirements of films of different widths. Furthermore, the clamping stability is poor, and the film is prone to slippage and falling off, resulting in poor stretching and shaping effects and failing to meet the requirements for high-quality production of biodegradable plastic films. Summary of the Invention

[0006] The purpose of this invention is to provide a stretching and shaping device for the production of biodegradable plastic films, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a stretching and shaping device for the production of biodegradable plastic film, comprising a frame base, wherein a first protrusion is provided on the upper right side of the frame base, and a roller assembly is slidably installed inside the first protrusion. The roller assembly includes a slide table base, the lower end of which is slidably installed inside the first protrusion. A symmetrical heating roller is rotatably installed between the two slide tables.

[0008] A heating component is fixedly installed at the upper middle part of the frame base. A symmetrical guard plate is provided on the inner side of the heating component. An auxiliary roller is rotatably installed on the inner side of the guard plate at equal intervals.

[0009] The upper left side of the frame base is provided with a second protrusion groove. A pulling component is slidably installed inside the two second protrusion grooves. The pulling component includes a first slide. The lower end of the first slide is slidably installed inside the second protrusion groove. The upper ends of the two first slides are fixedly installed with a mounting plate. A U-shaped frame is slidably arranged at both the front and rear ends of the upper part of the mounting plate. A symmetrical clamping plate is rotatably installed on the inner side of the U-shaped frame.

[0010] Preferably, support legs are fixedly installed on both the left and right sides of the lower end of the frame base, and a cooling box is fixedly installed on the outer sides of the front and rear support legs on the left side. A first roller shaft is rotatably installed on the upper left side of the frame base, and a second roller shaft in a symmetrical state is rotatably installed on the upper left side of the frame base. A first threaded rod is fixedly installed on the upper left side of the frame base and to the right of the second roller shaft on the right side.

[0011] Preferably, an adjustment platform is slidably mounted on the circumferential surface of the first threaded rod and the adjacent second roller shaft. An adjustment ring is rotatably mounted on the inner right end of the adjustment platform. The adjustment ring is threadedly rotatably connected to the first threaded rod. A cutting blade is rotatably mounted on the inner upper end of the adjustment platform.

[0012] Preferably, an L-shaped support rod is fixedly installed on the lower left side of the frame base, a first motor is fixedly installed on the upper front of the L-shaped support rod, and drive discs are rotatably installed on the inner side surfaces of the two L-shaped support rods. A winding shaft is fixedly installed between the two drive discs.

[0013] Preferably, each of the slide bases has a cross-shaped groove inside, with one end of the cross-shaped groove being open. A dual-axis motor is fixedly installed on the middle of the outer side of the slide base. A first reciprocating screw is fixedly installed on the output shafts at both ends of the dual-axis motor. A movable stage is threadedly installed on the circumferential surface of the first reciprocating screw. The movable stage is slidably installed inside the cross-shaped groove. A power-conducting hole is fixedly installed on the inner side of the front end of each of the two movable stages. A second motor is fixedly installed on the outer side of the rear end of each of the two movable stages. The output shaft of the second motor extends to the inner side of the movable stage and is fixedly installed with a mounting hole shaft.

[0014] Preferably, a heating roller shaft is installed between the power-conducting hole and the mounting hole shaft. A mounting rod is fixedly installed at the rear end of the heating roller shaft and is slidably installed inside the mounting hole shaft. A power-conducting rod is fixedly installed at the front end of the heating roller shaft and is slidably installed inside the power-conducting hole. A first regulator is fixedly installed at equal intervals inside the heating roller shaft, and heating rods are evenly fixedly installed in a ring array on the outer sides of both ends of the first regulator.

[0015] Preferably, the heating assembly includes a heating cover, with temperature detectors fixedly installed at both the upper left and right ends of the heating cover and inside, and a temperature regulator fixedly installed at the upper middle part of the heating cover. The temperature regulator and the temperature detector are electrically connected. First adjusting rods are symmetrically and rotatably installed on both the front and rear sides inside the heating cover, and double-headed grooved rods are rotatably installed on the other end of each of the first adjusting rods.

[0016] Preferably, a second adjusting rod is rotatably mounted on the other end of the double-headed grooved rod, and a protective plate is rotatably mounted on the outer sides of the two second adjusting rods laterally. A third motor is fixedly mounted on the outer sides of the two double-headed grooved rods on the left side, and a second reciprocating screw is fixedly mounted on the output shaft of the third motor. The other end of the second reciprocating screw is threadedly rotatably connected to the double-headed grooved rod on the right side.

[0017] Preferably, a main motor is fixedly installed on the left side inside the second convex groove, and a main screw is fixedly installed on the output shaft of the main motor. The main screw is threadedly rotatably connected to the first slide table. A convex groove is opened from the upper end face of the mounting plate to the inside. An adjusting motor is fixedly installed in the middle of the inner side of the convex groove. A third reciprocating screw is fixedly installed on the output shafts at both ends of the adjusting motor. The third reciprocating screw is threadedly rotatably connected to the adjacent mounting table.

[0018] Preferably, a telescopic cylinder is fixedly installed in the middle of the U-shaped frame, a rack is fixedly installed on the telescopic rod of the telescopic cylinder, and clamping plates are rotatably installed at the upper and lower ends of the inner side of the U-shaped frame. Gears are fixedly installed in the middle of the clamping plates, and the gears and racks mesh with each other.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention effectively solves the problems of roller fixing, limited adjustment of clamping components, and easy film displacement during heating in existing equipment by sliding a roller assembly in the first groove on the upper right side of the frame base, cooperating with a pulling component slidably installed in the second groove on the upper left side, and a heating component with a guard plate and auxiliary roller fixed in the middle. The roller assembly can slide and adjust its position along the first groove to adapt to the preheating requirements of conveying films of different specifications. The first slide of the pulling component slides along the second groove, and combined with the sliding adjustment of the U-shaped frame, it can flexibly adapt to the clamping and stretching of films of different widths. The guard plate and auxiliary roller in the heating component can limit and guide the film to avoid displacement and wrinkles during heating, significantly improving the adaptability of the equipment to films of different specifications and ensuring the stability of the stretching and shaping process and the basic stretching effect.

[0021] 2. In this invention, the roller assembly is driven by a dual-axis motor to drive the first reciprocating screw, which in turn drives the moving table to slide along the cross groove. This allows for flexible adjustment of the spacing and position of the heating rollers. Furthermore, the heating rollers are easily disassembled and replaced through the cooperation of the mounting rod and mounting hole shaft, and the energizing rod and energizing hole. The internal first regulator and the annular array of heating rods enable precise temperature control and uniform heating, effectively solving the problems of uneven heating and inconvenient adjustment associated with traditional heating rollers. This further improves the quality of film preheating and lays a solid foundation for subsequent stretching and shaping.

[0022] 3. In this invention, the stretching assembly uses a main motor to drive the main screw, which in turn moves the first slide to achieve precise control of the stretching distance. The adjusting motor drives the third reciprocating screw to slide the U-shaped frame, adapting to the clamping requirements of films of different widths. Furthermore, the telescopic cylinder drives the rack and pinion to mesh with the gear, causing the clamping plate to open and close precisely, improving clamping stability. This effectively solves the problems of poor flexibility and insufficient precision in traditional clamping and stretching, ensuring uniform force during the film stretching process and significantly improving the stretching and shaping accuracy of biodegradable plastic films and the final product quality. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of the main body of the present invention;

[0025] Figure 2 This is a structural diagram of the frame base of the present invention;

[0026] Figure 3 This is a schematic diagram of the first and second roller shafts of the present invention;

[0027] Figure 4 This is a schematic diagram of the heating roller shaft of the present invention;

[0028] Figure 5 This is a schematic diagram of the slide base of the present invention;

[0029] Figure 6 This is a schematic diagram of the heating roller shaft of the present invention.

[0030] Figure 7 This is a schematic diagram of the interior of the heating roller shaft of the present invention;

[0031] Figure 8 This is a schematic diagram of the heating cover of the present invention;

[0032] Figure 9 This is a schematic diagram of the interior of the heating cover of the present invention;

[0033] Figure 10 This is a schematic diagram of the U-shaped frame of the present invention;

[0034] Figure 11 This is a schematic diagram of the mounting plate and U-shaped frame of the present invention;

[0035] Figure 12 This is a diagram of the internal structure of the U-shaped frame of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Frame base; 101. Support leg; 102. Cooling box; 103. First roller; 104. Second roller; 105. First threaded rod; 106. Adjusting table; 107. Adjusting ring; 108. Cutting blade; 109. L-shaped support rod; 110. First motor; 111. Drive disc; 112. Rewinding shaft;

[0038] 2. Roller assembly; 201. Slide base; 202. Cross slide groove; 203. Dual-axis motor; 204. First reciprocating screw; 205. Moving table; 206. Power supply hole; 207. Second motor; 208. Mounting hole shaft; 209. Heating roller shaft; 210. Mounting rod; 211. Power supply rod; 212. First adjuster; 213. Heating rod;

[0039] 3. Heating assembly; 301. Heating cover; 302. Temperature detector; 303. Temperature regulator; 304. First adjusting rod; 305. Double-headed grooved rod; 306. Second adjusting rod; 307. Guard plate; 308. Auxiliary roller; 309. Third motor; 310. Second reciprocating screw;

[0040] 4. Pulling assembly; 401. Main motor; 402. Main screw; 403. First slide; 404. Mounting plate; 405. Convex groove; 406. Adjusting motor; 407. Third reciprocating screw; 408. Mounting platform; 409. U-shaped frame; 410. Telescopic cylinder; 411. Rack and pinion; 412. Clamping plate; 413. Gear;

[0041] 5. First groove; 6. Second groove. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 12 The present invention provides a technical solution:

[0044] A stretching and shaping device for producing biodegradable plastic film includes a frame base 1, wherein the frame base 1 consists of two crossbars, and support legs 101 are fixedly installed on the lower left and right sides of the two crossbars. Connecting rods are fixedly installed between the front and rear support legs 101, thus forming the complete frame base 1. Figure 1As shown, the support leg 101 enables the equipment to be placed stably and supports the basic structure of the entire stretching and shaping process.

[0045] Cooling boxes 102 are fixedly installed on the outer sides of the two front and rear support legs 101 on the left side. A first roller 103 is rotatably installed on the upper left side of the frame base 1, and two symmetrical second rollers 104 are rotatably installed on the upper left side of the frame base 1. It should be noted that the left second roller 104 can move laterally, thereby adjusting the distance between the two second rollers 104. Then, a cooling box 102 is fixedly installed on the upper left side of the frame base 1, to the right of the right second roller 104. A first threaded rod 105 is fixedly installed. An adjusting platform 106 is slidably installed on the circumferential surface of the first threaded rod 105 and the adjacent second roller shaft 104. An adjusting ring 107 is rotatably installed on the right side inside the adjusting platform 106, and the adjusting ring 107 is threadedly connected to the first threaded rod 105. A cutting blade 108 is rotatably installed on the upper inner side of the adjusting platform 106. It should be noted that a driving device is provided inside the upper end of the adjusting platform 106, and the output shaft of the driving device is fixedly connected to the center of the outer surface of the cutting blade 108. Figure 3 As shown.

[0046] Therefore, during use, after the subsequent operations are completed, the material passes through the middle of the two second rollers 104 under the action of the first roller 103. It should be noted that since the width of the finished material has been determined in the early stages of production, the adjusting ring 107 needs to be rotated before operation. Rotating the adjusting ring 107 allows the adjusting table 106 to slide back and forth along the path of the second roller 104. At this time, the distance between the two adjusting tables 106 decreases or increases as needed to accommodate the finished material. Then, under the action of the driving device, the cutting blade 108 rotates, thus completing the cutting operation at the edge of the material after the stretching operation. Figure 2 and Figure 3 As shown.

[0047] After cutting, the material passes through two second rollers 104 and enters the interior of the cooling box 102, where it is cooled to facilitate subsequent winding operations.

[0048] Two symmetrical L-shaped support rods 109 are fixedly installed on the lower left side of the frame base 1. A first motor 110 is fixedly installed on the upper front end of the L-shaped support rods 109. Symmetrical drive discs 111 are rotatably installed on the inner left sides of both the front and rear L-shaped support rods 109. A winding shaft 112 is fixedly installed between the two drive discs 111. It should be noted that the outer side of the upper front drive disc 111 is fixedly connected to the output shaft of the first motor 110. Figure 1 As shown.

[0049] During use, the first motor 110 is started, and the output shaft of the first motor 110 drives the drive disk 111 to rotate, thereby causing the upper take-up shaft 112 to rotate. This allows for the winding of the corresponding film. For different films, the two upper drive disks 111 rotate, causing the two lower drive disks 111 to rotate, which in turn causes the lower take-up shaft 112 to rotate, thus enabling the winding of the corresponding film. Figure 1 As shown.

[0050] The upper right side of the frame base 1 has first protrusions 5 on both its front and rear edges, and a slide seat 201 from the roller assembly 2 is provided inside each of the first protrusions 5. The lower end of the slide seat 201 is slidably mounted inside the first protrusion 5. A cross groove 202 is formed from the inside to the outer side of the slide seat 201. Figure 4 and Figure 5 As shown, a dual-axis motor 203 is fixedly installed on the middle of the outer side of the slide base 201. A first reciprocating screw 204 is fixedly installed on the output shafts at both ends of the dual-axis motor 203. A movable stage 205 is threadedly mounted on the circumferential surface of the first reciprocating screw 204, and the movable stage 205 is slidably installed inside the cross groove 202. Figure 5 As shown.

[0051] It should be noted that one side of the cross slide 202 is open, and one end of the moving stage 205 passes through the cross slide 202, as shown below. Figure 5 As shown.

[0052] The inner surfaces of the two front movable stages 205 are provided with power-conducting holes 206, and the outer surfaces of the two rear movable stages 205 are each fixedly mounted with a second motor 207. The output shaft of the second motor 207 extends to the inner surface of the movable stage 205, and the output shaft is fixedly mounted with a mounting hole shaft 208. Figure 5 As shown.

[0053] A heating roller shaft 209 is provided between the front-end power-conducting hole 206 and the rear-end mounting hole shaft 208. A mounting rod 210 is fixedly installed at the rear end of the heating roller shaft 209 and slidably installed inside the mounting hole shaft 208. The mounting rod 210 has a rectangular structure and matches the mounting hole shaft 208. A power-conducting rod 211 is fixedly installed at the front end of the heating roller shaft 209 and slidably installed inside the power-conducting hole 206. Therefore, during use, under the action of the power-conducting hole 206, external current can be transmitted to the subsequent structure through the power-conducting rod 211. First regulators 212 are fixedly installed at equal intervals inside the heating roller shaft 209. Heating rods 213 are evenly fixedly installed in a circular array from both ends of the first regulators 212 to the outer side. Figure 7 As shown.

[0054] Therefore, during use, depending on the situation, the dual-axis motor 203 is started. The output shaft of the dual-axis motor 203 drives the first reciprocating screw 204 to rotate. When the first reciprocating screw 204 rotates, it can make the moving stage 205 move up and down, thereby reducing or increasing the distance between two adjacent moving stages 205, thus changing the distance between the subsequent heating roller shafts 209, so as to be suitable for films of different thicknesses.

[0055] Secondly, during use, the current can be transmitted through the energizing hole 206 to the first regulator 212 via the energizing rod 211. The first regulator 212 can adjust the temperature of different areas of the heating roller 209, thereby heating the edge of the film at high temperature during longitudinal stretching. This prevents insufficient temperature at the edge, which could prevent stretching. Therefore, this structure further avoids the inability to stretch the film at the edge, improving the material stretching effect. Figure 5 and Figure 7 As shown.

[0056] During use, the second motor 207 is started, and the output shaft of the second motor 207 rotates the mounting hole shaft 208. The mounting hole shaft 208 rotates the heating roller shaft 209, thereby completing the longitudinal stretching of the film and changing the length of the film material. This is because the film is squeezed under the action of the heating roller shaft 209, making the film longer.

[0057] It should be noted that during use, the distance between the left and right sliding table bases 201 can be adjusted as needed, further allowing for changes in heating based on the film material, and also enabling adjustments during use.

[0058] The rotational speeds of the two heating rollers 209, from right to left, increase in stages.

[0059] The heating cover 301 of the heating assembly 3 is fixedly installed on the upper middle right side of the frame base 1, such as... Figure 1 As shown, temperature detectors 302 are fixedly installed on both the upper left and right edges of the heating cover 301 and into the interior, and a temperature regulator 303 is fixedly installed in the middle. The temperature regulator 303 and the temperature detectors 302 are electrically connected. Therefore, during use, the temperature detectors 302 can continuously detect the temperature inside the heating cover 301 and then transmit the temperature data to the temperature regulator 303. The temperature regulator 303 modifies the internal temperature of the heating cover 301 based on the feedback data, thereby ensuring that the internal temperature can heat the passing materials. Figure 8 As shown.

[0060] The heating cover 301 has symmetrically rotatably mounted first adjusting rods 304 on both its front and rear sides. A double-headed grooved rod 305 is rotatably mounted on one end of each first adjusting rod 304. A second adjusting rod 306 is rotatably mounted on one end of each double-headed grooved rod 305. A protective plate 307 is rotatably mounted on the inner ends of the two second adjusting rods 306. Auxiliary rollers 308 are rotatably mounted at equal intervals on the inner side of the protective plate 307. Figure 9 As shown.

[0061] A third motor 309 is fixedly mounted on the outer side of the two double-headed grooved rods 305 on the left side. A second reciprocating screw 310 is fixedly mounted on the output shaft of the third motor 309. The other end of the second reciprocating screw 310 is threadedly connected to the double-headed grooved rod 305 on the right side. Figure 9 As shown.

[0062] Therefore, during use, the third motor 309 starts, driving the second reciprocating screw 310 to rotate. The rotation of the second reciprocating screw 310 drives the double-headed grooved rod 305 on the right side to move axially through the threaded connection, thereby pushing the double-headed grooved rod 305 on the left side to move synchronously. This linkage causes the first adjusting rod 304 and the second adjusting rod 306 to change angle, thereby adjusting the position of the guard plate 307. The auxiliary roller shaft 308 inside the guard plate 307 adjusts the spacing as the guard plate 307 moves, ensuring that the film material is uniformly heated and stably stretched inside the heating cover 301. Through this mechanism, the operator can optimize the layout of the auxiliary roller shaft 308 in real time according to the thickness and stretching requirements of the film material, improve heating efficiency and shaping quality, and reduce the risk of deformation caused by uneven thermal stress.

[0063] The upper left front and rear edges of the frame base 1 are provided with second protrusions 6. Each of the two second protrusions 6 contains a tensioning assembly 4, which includes a main motor 401. The main motor 401 is fixedly installed inside the left end of the second protrusion 6. A main screw 402 is fixedly installed on the output shaft of the main motor 401. A first slide 403 is threadedly mounted on the circumferential surface of the main screw 402. The lower end of the first slide 403 is slidably installed inside the second protrusion 6. A mounting plate 404 is fixedly installed on the upper ends of both first slides 403. A convex groove 405 is formed from the upper surface of the mounting plate 404 to its interior. An adjusting motor 406 is fixedly installed in the middle of the inner side of the convex groove 405. A third reciprocating screw 407 is fixedly installed on both ends of the output shaft of 406. A mounting platform 408 is threadedly mounted on the circumferential surface of the third reciprocating screw 407. A U-shaped frame 409 is fixedly installed on the upper end of each mounting platform 408. A telescopic cylinder 410 is fixedly installed on the inner middle side of the U-shaped frame 409. A rack 411 is fixedly installed on the telescopic rod of the telescopic cylinder 410. Furthermore, symmetrical clamping plates 412 are rotatably installed on the inner edge of the U-shaped frame 409. A gear 413 is fixedly installed in the middle of each clamping plate 412. The gear 413 and the rack 411 mesh with each other. It should be noted that the outer circumferential surface of the gear 413 extends to the outer side of the U-shaped frame 409. Figure 12 As shown.

[0064] Therefore, during use, when the main motor 401 starts, the output shaft drives the main screw 402 to rotate, causing the first slide 403 to slide axially in the second groove 6, thereby driving the mounting plate 404 to move as a whole to the predetermined position at the edge of the film.

[0065] Subsequently, the adjusting motor 406 drives the third reciprocating screw 407 to rotate, and the mounting platform 408 moves horizontally back and forth in the convex groove 405 to adjust the spacing of the U-shaped frame 409 to adapt to the film width.

[0066] At this time, the telescopic cylinder 410 extends the telescopic rod, pushing the rack rod 411 to move forward. The gear 413 rotates under meshing action, driving the clamping plate 412 to close inward, firmly clamping the two edges of the film.

[0067] After clamping is completed, the main motor 401 runs in reverse, and the main screw 402 drives the first slide 403 to retract at a constant speed. At this time, the output shaft of the adjusting motor 406 also moves in reverse with the third reciprocating screw 407, and the U-shaped frame 409 moves outward under the action of the mounting platform 408, so that the film can be stretched evenly to the required tension state under the action of the clamping plate 412.

[0068] After the above operations are completed, the film is stretched to a suitable width and then enters the two second rollers 104 under the action of the first roller 103, and then enters the interior of the cooling box 102 for winding. Figure 1 As shown.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stretching and shaping device for producing biodegradable plastic film, characterized in that: The frame includes a frame base (1), and the upper right side of the frame base (1) is provided with a first protrusion (5) at the front and back. Roller shaft assemblies (2) are slidably installed inside the first protrusion (5). The roller shaft assembly (2) includes a slide table (201), the lower end of the slide table (201) is slidably installed inside the first protrusion (5), and symmetrical heating roller shafts (209) are rotatably installed between the two slide tables (201). A heating component (3) is fixedly installed at the upper middle part of the frame base (1). A symmetrical guard plate (307) is provided on the inner side of the heating component (3). An auxiliary roller (308) is rotatably installed on the inner side of the guard plate (307) at equal intervals. The upper left side of the frame base (1) is provided with a second protrusion (6) and a pulling component (4) is slidably installed inside the two second protrusions (6). The pulling component (4) includes a first slide (403). The lower end of the first slide (403) is slidably installed inside the second protrusion (6). The upper ends of the two first slides (403) are fixedly installed with a mounting plate (404). The upper front and rear ends of the mounting plate (404) are slidably provided with a U-shaped frame (409). The inner side of the U-shaped frame (409) is rotatably installed with a symmetrical clamping plate (412). The slide base (201) is provided with a cross groove (202) inside, and one end of the cross groove (202) is open. A dual-axis motor (203) is fixedly installed in the middle of the outer side of the slide base (201). A first reciprocating screw (204) is fixedly installed on the output shafts at both ends of the dual-axis motor (203). A movable stage (205) is threadedly installed on the circumferential surface of the first reciprocating screw (204). The movable stage (205) is slidably installed inside the cross groove (202). A power hole (206) is fixedly installed on the inner side of the front end of each of the two movable stages (205). A second motor (207) is fixedly installed on the outer side of the rear end of each of the two movable stages (205). The output shaft of the second motor (207) extends to the inner side of the movable stage (205) and is fixedly installed with a mounting hole shaft (208). A heating roller shaft (209) is installed between the power-conducting hole (206) and the mounting hole shaft (208). A mounting rod (210) is fixedly installed at the rear end of the heating roller shaft (209). The mounting rod (210) is slidably installed inside the mounting hole shaft (208). A power-conducting rod (211) is fixedly installed at the front end of the heating roller shaft (209). The power-conducting rod (211) is slidably installed inside the power-conducting hole (206). A first regulator (212) is fixedly installed at equal intervals inside the heating roller shaft (209). Heating rods (213) are evenly fixedly installed in a ring array on the outer sides of both ends of the first regulator (212).

2. The stretching and shaping equipment for producing biodegradable plastic film according to claim 1, characterized in that: Support legs (101) are fixedly installed on both the left and right sides of the lower end of the frame seat (1). Cooling box (102) is fixedly installed on the outer side of the two support legs (101) on the left side. A first roller shaft (103) is rotatably installed on the upper left side of the frame seat (1). A second roller shaft (104) in a symmetrical state is rotatably installed on the upper left side of the frame seat (1). A first threaded rod (105) is fixedly installed on the upper left side of the frame seat (1) and to the right of the second roller shaft (104).

3. The stretching and shaping equipment for producing biodegradable plastic film according to claim 2, characterized in that: An adjustment platform (106) is slidably mounted on the circumferential surface of the first threaded rod (105) and the adjacent second roller (104). An adjustment ring (107) is rotatably mounted on the inner side of the right end of the adjustment platform (106). The adjustment ring (107) is threadedly rotatably connected to the first threaded rod (105). A cutting blade (108) is rotatably mounted on the inner side of the upper end of the adjustment platform (106).

4. The stretching and shaping equipment for producing biodegradable plastic film according to claim 1, characterized in that: An L-shaped support rod (109) is fixedly installed on the lower left side of the frame base (1). A first motor (110) is fixedly installed on the upper front of the L-shaped support rod (109). A drive disc (111) is rotatably installed on the inner side surface of the two L-shaped support rods (109) at both ends. A winding shaft (112) is fixedly installed between the two drive discs (111).

5. The stretching and shaping equipment for producing biodegradable plastic film according to claim 1, characterized in that: The heating assembly (3) includes a heating cover (301). Temperature detectors (302) are fixedly installed on the upper left and right ends of the heating cover (301) and inside. A temperature regulator (303) is fixedly installed in the middle of the upper end of the heating cover (301). The temperature regulator (303) and the temperature detector (302) are electrically connected. A first adjusting rod (304) is symmetrically and rotatably installed on both the front and rear sides inside the heating cover (301). A double-headed grooved rod (305) is rotatably installed on the other end of each first adjusting rod (304).

6. The stretching and shaping equipment for producing biodegradable plastic film according to claim 5, characterized in that: The other end of the double-headed grooved rod (305) is rotatably mounted with a second adjusting rod (306). The outer sides of the two second adjusting rods (306) are rotatably mounted with a guard plate (307). The outer sides of the two double-headed grooved rods (305) on the left side are fixedly mounted with a third motor (309). The output shaft of the third motor (309) is fixedly mounted with a second reciprocating screw (310). The other end of the second reciprocating screw (310) is threadedly rotatably connected to the double-headed grooved rod (305) on the right side.

7. The stretching and shaping equipment for producing biodegradable plastic film according to claim 1, characterized in that: A main motor (401) is fixedly installed on the left side inside the second convex groove (6). A main screw (402) is fixedly installed on the output shaft of the main motor (401). The main screw (402) and the first slide (403) are threadedly rotatably connected. A convex groove (405) is opened from the upper end surface of the mounting plate (404) to the inside. An adjusting motor (406) is fixedly installed in the middle of the inner side of the convex groove (405). A third reciprocating screw (407) is fixedly installed on the output shafts at both ends of the adjusting motor (406). The third reciprocating screw (407) and the adjacent mounting table (408) are threadedly rotatably connected.

8. The stretching and shaping equipment for producing biodegradable plastic film according to claim 1, characterized in that: A telescopic cylinder (410) is fixedly installed in the middle of the U-shaped frame (409). A rack rod (411) is fixedly installed on the telescopic rod of the telescopic cylinder (410). Clamping plates (412) are rotatably installed at the upper and lower ends of the inner side of the U-shaped frame (409). Gears (413) are fixedly installed in the middle of each clamping plate (412). The gears (413) and rack rods (411) mesh with each other.

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