Hot pressing device for packaging film production

Abstract

The invention discloses a hot pressing device for packaging film production, and belongs to the technical field of hot pressing. An upper conveying belt and a lower conveying belt which are symmetrical are arranged on the two sides of a supporting seat, and a discharging mechanism is arranged at a notch formed by the upper conveying belt and the lower conveying belt; an upper sliding frame is slidably arranged on the upper positioning plate, and a lower sliding frame is slidably arranged on the lower positioning plate; a synchronous gear is rotationally arranged on the inner side of the positioning frame, an upper hot-pressing frame located in the hot-pressing cavity is fixedly connected to the inner side of the upper sliding frame, and a lower hot-pressing frame is fixedly connected to the inner side of the lower sliding frame; a mounting frame is further fixedly connected to the side face of the supporting seat, a linkage motor is further mounted on the mounting frame, and a linkage swing shaft is arranged at the output end of the linkage motor. Raw materials can be efficiently hot-pressed through the upper forming mechanism and the lower forming mechanism, when a linkage swing shaft rotates clockwise, an upper swing arm is driven by a falling arm to deflect anticlockwise, at the moment, an upper sliding frame drives an upper hot-pressing frame to move downwards, and through the design, the forming effect and the working efficiency of the hot-pressing equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of hot pressing, in particular to a hot pressing device for producing packaging films. Background Art

[0002] Film products have a wide range of applications in various fields, among which bubble film is a film used for product packaging, used to protect the outer surface of the product or for packaging scattered products. The background technology of hot pressing composite equipment for packaging film production mainly includes hot pressing process, temperature control technology, pressure control technology and material processing technology. These technologies are all to ensure that the packaging film can be effectively combined with other materials to obtain a composite material with specific properties. During the use of hot pressing composite equipment, most of the two material rolls are installed on the same side of the hot pressing composite equipment, so that the materials are transferred to the inside of the hot pressing composite equipment for hot pressing composite.

[0003] The patent application with publication number CN116872505A discloses a TPU composite film hot pressing molding device and method, which solves the problem that it is inconvenient for staff to pull a number of single-layer film materials to move. The device comprises a base, the top of the base is fixedly connected to two side plates, a heater is arranged between the two side plates, two guide rollers and two hot pressing rollers are arranged between the two side plates, both ends of the guide roller are rotatably connected to a first adjustment seat, both ends of the hot pressing roller are rotatably connected to a second adjustment seat, one side of the side plate is provided with a first bidirectional screw rod and a second bidirectional screw rod, and the external fixing sleeve of the first bidirectional screw rod is provided with two stop rings; there is no need for staff to manually pull a number of single-layer film materials to move, and the number of single-layer film materials can be passed through the two guide rollers, the heater and the two hot pressing rollers in turn, which is convenient for fixing the number of single-layer film materials on the winding roller, facilitating actual operation and improving convenience.

[0004] However, the above disclosed composite film hot pressing forming device has a general degree of automation, and the process is cumbersome, time-consuming and labor-intensive. It cannot automatically unload and hot press the raw materials. In addition, during the hot pressing process, a small amount of melted raw material debris will adhere to the surface of the material, which will affect the use effect of the material after subsequent cooling. Summary of the invention

[0005] The purpose of the present invention is to provide a hot pressing device for packaging film production to solve the problems that the existing composite film hot pressing forming device has a general degree of automation, a complicated process, is time-consuming and labor-intensive, cannot automatically unload and hot press the raw materials, and during the hot pressing process, a small amount of melted raw material debris will adhere to the surface of the material, which affects the use effect of the material after subsequent cooling.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a hot pressing device for packaging film production, comprising a conveying mechanism, a feeding mechanism and a forming mechanism, the conveying mechanism comprising a support seat, symmetrical upper and lower conveying belts are arranged on both sides of the support seat, and a hot pressing chamber is formed between the upper and lower conveying belts on both sides; the upper conveying belt is shorter than the lower conveying belt, and the feeding mechanism is arranged at the gap formed by the upper and lower conveying belts; a positioning frame is arranged in the middle of the support seat, and the forming mechanism comprises an upper forming mechanism and a lower forming mechanism fixedly arranged on the positioning frame, the upper forming mechanism comprises an upper positioning plate, the lower forming mechanism comprises a lower positioning plate, and the upper positioning plate An upper sliding frame is provided on the upper sliding, and a lower sliding frame is provided on the lower positioning plate for sliding; a synchronous gear is rotatably provided on the inner side of the positioning frame, an upper rack is fixedly provided on the bottom of the upper sliding frame, and a lower rack is fixedly provided on the bottom of the lower sliding frame; an upper hot pressing frame located in the hot pressing chamber is fixedly connected to the inner side of the upper sliding frame, and a lower hot pressing frame is fixedly connected to the inner side of the lower sliding frame; a mounting frame is also fixedly connected to the side of the support seat, and a linkage motor is also installed on the mounting frame, and a linkage swing shaft is provided at the output end of the linkage motor; when the output end of the linkage motor rotates, the unloading of raw materials by the unloading mechanism and the hot pressing forming of the raw materials by the upper and lower hot pressing frames can be synchronously realized.

[0007] As a further solution of the present invention: linkage gears are installed on the sides of the upper conveyor belt and the lower conveyor belt, an upper linkage chain is connected between the linkage gears on the upper conveyor belt, and a lower linkage chain is connected between the linkage gears on the lower conveyor belt.

[0008] As a further solution of the present invention: the unloading mechanism includes a support rod fixedly arranged on the side of the support seat, a fixed frame is fixedly arranged on the top of the support rod, and a through cavity located above the lower conveyor belt is opened at the bottom of the fixed frame; a unloading plate is slidably arranged on the inner side of the fixed frame, slide rails are arranged on both sides of the fixed frame, and engaging frames cooperating with the slide rails are arranged on both sides of the unloading plate.

[0009] As a further solution of the present invention: a symmetrical vertical frame is fixedly provided on the top of the slide rail, and the vertical frame is connected to the unloading plate below through a reset spring; a rotating shaft is rotatably provided on the inner side of the fixed frame, and the rotating shaft is movably installed on the outer wall of the fixed frame through a bearing; a protrusion is also fixedly provided on the engaging frame, and a unloading swing arm cooperating with the protrusion is installed on the rotating shaft, and the linkage motor is connected to the rotating shaft through a unloading belt.

[0010] As a further solution of the present invention: an upper sliding seat is provided on the inner side of the upper positioning plate, and the upper sliding frame is slidably provided on the upper sliding seat; a lower sliding seat is provided on the inner side of the lower positioning plate, and the lower sliding frame is slidably provided on the lower sliding seat; an upper limit arm is provided on one side of the upper sliding frame, and an upper limit column cooperating with the upper limit arm is provided on the inner side of the upper positioning plate; a lower limit arm is provided on one side of the lower sliding frame, and a lower limit column cooperating with the lower limit arm is provided on the inner side of the lower positioning plate.

[0011] As a further solution of the present invention: a lifting block and a falling block are arranged on the other side of the upper sliding frame, and the lifting block is located above the falling block; a cross frame is also fixedly arranged on the back side of the upper positioning plate, and a swinging crank arm is movably arranged on the cross frame, and the swinging crank arm includes a lower swing block and an upper swing arm.

[0012] As a further solution of the present invention: the top of the falling block is provided with an inclined first slope, and the bottom of the swing block is provided with a second slope matched with the falling block.

[0013] As a further solution of the present invention: the linked swing shaft includes a lifting arm and a lowering arm, the lifting arm is longer than the lowering arm; the lifting arm and the lifting block cooperate with each other to lift the upper sliding frame, and the lowering arm and the upper swing arm cooperate with each other to drop the upper sliding frame.

[0014] As a further solution of the present invention: a dust suction pump is installed on the top of the upper hot pressing frame and the bottom of the lower hot pressing frame, upper dust suction pipes facing downward are arranged on both sides of the upper hot pressing frame, and lower dust suction pipes facing upward are arranged on both sides of the lower hot pressing frame.

[0015] As a further solution of the present invention: a cleaning structure is also arranged below the conveying mechanism, and the cleaning structure includes symmetrical vertical plates, and a lower crankshaft and an upper crankshaft that cooperate with each other are movably arranged between the vertical plates, and a limiting plate is also arranged between the lower crankshaft and the upper crankshaft, a lower gear is fixedly arranged in the middle of the lower crankshaft, and an upper gear meshing with the lower gear is fixedly arranged in the middle of the upper crankshaft, and multiple groups of roller brushes are arranged on the outer walls on both sides of the upper gear, and the lower crankshaft is connected to one group of rollers in the lower conveyor belt through a linkage belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can convey and hot-press raw materials through the upper conveyor belt and the lower conveyor belt to avoid deformation of the raw materials during the operation. When the linkage motor drives the rotating shaft to rotate through the unloading belt, the unloading swing arm on the rotating shaft can be driven to rotate, and the unloading plate can be driven to move upward under the cooperation of the unloading swing arm and the protrusion. Since the bottom of the semi-finished materials to be hot-pressed stacked on each other are kept in contact with the lower conveyor belt through the through cavity, when the unloading plate moves upward, the raw materials at the bottom will enter between the upper conveyor belt and the lower conveyor belt from the fixed frame. When the unloading swing arm is separated from the protrusion, the unloading plate returns to its original position under the action of the reset spring. When the lower conveyor belt rotates, under the action of the linkage belt, the upper gear rotates and lifts up and down reciprocatingly. At this time, the roller brushes on both sides can intermittently clean the bottom of the lower conveyor belt to avoid continuous contact. Dust will accumulate at the position of the roller brush and cannot fall. The design is ingenious and effective, which greatly improves the stability and practicality of the hot pressing device for packaging film production.

[0018] 2. The present invention can automatically and efficiently hot-press the raw materials through the upper forming mechanism and the lower forming mechanism on the upper and lower sides. When the linkage swing shaft rotates clockwise, the upper swing arm on the swing crank arm deflects counterclockwise under the drive of the lower drop arm, and the lower swing block is separated from the lower drop block. At this time, the upper sliding frame drives the upper hot pressing frame to move downward. At this time, under the linkage cooperation of the synchronous gear, the upper rack and the lower rack, the lower sliding frame below will also move upward to hot-press the raw materials. When the linkage swing shaft continues to rotate clockwise, under the cooperation of the lifting arm and the lifting block, the upper sliding frame drives the upper hot pressing frame to move upward, and the lower drop block passes over the lower swing block upward through the cooperation of the first inclined surface and the second inclined surface. At this time, under the linkage cooperation of the synchronous gear, the upper rack and the lower rack, the lower sliding frame below will also move downward to separate from the raw materials. This design improves the hot pressing effect and work efficiency of the hot pressing device for packaging film production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 The three-dimensional structure of the present invention Figure 1 ;

[0021] Figure 2 It is a three-dimensional structural diagram of the conveying mechanism in the present invention;

[0022] Figure 3 is a partial cross-sectional view of the conveying mechanism of the present invention;

[0023] Figure 4 It is a partial three-dimensional structural diagram of the unloading swing arm in the present invention;

[0024] Figure 5 It is a partial cross-sectional view of the material unloading swing arm in the present invention;

[0025] Figure 6 It is a three-dimensional structural diagram of the molding mechanism in the present invention;

[0026] Figure 7 is a partial cross-sectional view of the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of the molding mechanism in the present invention;

[0028] Fig. 9 It is a partial cross-sectional view of the present invention.

[0029] Description of reference numerals:

[0030] 1. Conveying mechanism; 101. Support seat; 102. Upper conveyor belt; 103. Lower conveyor belt; 104. Linkage gear; 105. Upper linkage chain; 106. Lower linkage chain; 107. Positioning frame; 108. Hot pressing chamber;

[0031] 2. Unloading mechanism; 201. Support rod; 202. Fixed frame; 203. Through cavity; 204. Slide rail; 205. Unloading plate; 206. Engaging frame; 207. Vertical frame; 208. Return spring; 209. Rotating shaft; 210. Bearing; 211. Bump; 212. Unloading swing arm; 213. Unloading belt;

[0032] 3. Forming mechanism; 301. Upper forming mechanism; 302. Lower forming mechanism; 303. Upper positioning plate; 304. Upper slide seat; 305. Upper sliding frame; 306. Upper limit arm; 307. Upper limit column; 308. Lifting block; 309. Dropping block; 310. First inclined plane; 311. Horizontal frame; 312. Swinging crank arm; 313. Lower swing block; 314. Upper swing arm; 315. Second inclined plane; 316. Lower positioning plate; 317. Lower slide seat; 318. Lower sliding frame; 319. Lower limit arm; 320. Lower limit column; 3 21. Synchronous gear; 322. Upper rack; 323. Lower rack; 324. Upper hot pressing frame; 325. Lower hot pressing frame; 326. Dust pump; 327. Upper dust pipe; 328. Lower dust pipe; 329. Mounting frame; 330. Linkage motor; 331. Linkage swing shaft; 332. Lifting arm; 333. Drop arm; 334. Cleaning structure; 335. Vertical plate; 336. Lower crankshaft; 337. Upper crankshaft; 338. Linkage belt; 339. Lower gear; 340. Upper gear; 341. Roller brush; 342. Limit plate. DETAILED DESCRIPTION

[0033] The following will be combined with the attached Figures 1 to 9The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides a heat pressing device for packaging film production through improvement. Figure 1-Figure 9 As shown, it includes a conveying mechanism 1, a feeding mechanism 2 and a forming mechanism 3, the conveying mechanism 1 includes a support seat 101, and symmetrical upper conveyor belts 102 and lower conveyor belts 103 are arranged on both sides of the support seat 101, and a hot pressing chamber 108 is formed between the upper conveyor belts 102 and the lower conveyor belts 103 on both sides; the upper conveyor belt 102 is shorter than the lower conveyor belt 103, and the feeding mechanism 2 is arranged at the gap formed by the upper conveyor belt 102 and the lower conveyor belt 103; a positioning frame 107 is arranged in the middle of the support seat 101, and the forming mechanism 3 includes an upper forming mechanism 301 and a lower forming mechanism 302 fixedly arranged on the positioning frame 107, the upper forming mechanism 301 includes an upper positioning plate 303, and the lower forming mechanism 302 includes a lower positioning plate 316, an upper sliding frame 305 is slidably arranged on the upper positioning plate 303, and a lower positioning frame 306 is slidably arranged on the upper positioning plate 303. A lower sliding frame 318 is slidingly arranged on the plate 316; a synchronous gear 321 is rotatably arranged on the inner side of the positioning frame 107, an upper rack 322 is fixedly arranged on the bottom of the upper sliding frame 305, and a lower rack 323 is fixedly arranged on the bottom of the lower sliding frame 318; an upper hot pressing frame 324 located in the hot pressing chamber 108 is fixedly connected to the inner side of the upper sliding frame 305, and a lower hot pressing frame 325 is fixedly connected to the inner side of the lower sliding frame 318; a mounting frame 329 is also fixedly connected to the side of the support seat 101, and a linkage motor 330 is also installed on the mounting frame 329, and a linkage swing shaft 331 is arranged at the output end of the linkage motor 330; when the output end of the linkage motor 330 rotates, the unloading of raw materials by the unloading mechanism 2 and the hot pressing forming of the raw materials by the upper hot pressing frame 324 and the lower hot pressing frame 325 can be realized synchronously.

[0035] In this embodiment: the hot pressing device for packaging film production is mainly divided into three parts: a conveying mechanism 1, a material discharging mechanism 2 and a forming mechanism 3. When the device is in use, the raw materials are first pre-processed, and the film to be hot-pressed is attached to the packaging material. Multiple groups of raw materials stacked on each other are placed in the fixed frame 202, and at this time, half of the bottom area of ​​the raw materials is in contact with the lower conveyor belt 103. Then start the linkage motor 330, and under the drive of the linkage motor 330, the rotating shaft 209 and the linkage swing shaft 331 will rotate freely. First, the material discharging plate 205 can be driven to move upward with the cooperation of the material discharging swing arm 212 and the protrusion 211. Since the front half of the raw material of the plate type is in contact with the lower conveyor belt 103, and the upper conveyor belt 102 and the lower conveyor belt 103 are both kept in the started state, the material always keeps the pre-translation state. Therefore, when the unloading plate 205 moves upward and opens the height of the single raw material, the front end of the material is no longer blocked, and the raw material at the bottom will enter between the upper conveyor belt 102 and the lower conveyor belt 103 from the fixed frame 202. When the unloading swing arm 212 is separated from the protrusion 211, the unloading plate 205 returns to its original position under the action of the reset spring 208. At this time, the raw material to be hot-pressed moves to the position of the hot-pressing chamber 108 through the upper and lower conveyor belts 102 and the lower conveyor belts 103 on the upper and lower sides, and the linkage swing shaft 331 will continue to rotate clockwise. Driven by the lower arm 333, the upper swing arm 314 on the swing crank arm 312 will deflect counterclockwise, and the lower swing block 313 will be separated from the lower block 309. After separation, the swing crank arm 312 returns to its original state under the action of its own gravity, and the upper sliding frame 305 drives the upper hot pressing frame 324 to move downward. At this time, driven by the upper rack 322, the synchronous gear 321 rotates counterclockwise. Driven by the lower rack 323, the lower sliding frame 318 below also moves upward to perform hot pressing molding on the raw material. After molding is completed, the raw material continues to move to the next process through the upper conveyor belt 102 and the lower conveyor belt 103.

[0036] See attached Figure 1 -Attached Figure 2 Linkage gears 104 are installed on the sides of the upper conveyor belt 102 and the lower conveyor belt 103. An upper linkage chain 105 is connected between the linkage gears 104 on the upper conveyor belt 102, and a lower linkage chain 106 is connected between the linkage gears 104 on the lower conveyor belt 103.

[0037] In the present embodiment, in order to ensure the linkage rotation between the upper conveyor belts 102, an upper linkage chain 105 is designed. In order to ensure the linkage rotation between the lower conveyor belts 103, a lower linkage chain 106 is designed, wherein the upper conveyor belt 102 and the lower conveyor belt 103 are driven and operated by an external power device (not shown).

[0038] See attached Figure 4 -Attached Figure 5The unloading mechanism 2 includes a support rod 201 fixedly arranged on the side of the support seat 101, a fixed frame 202 is fixedly arranged on the top of the support rod 201, and a through cavity 203 located above the lower conveyor belt 103 is opened at the bottom of the fixed frame 202; a unloading plate 205 is slidably arranged on the inner side of the fixed frame 202, slide rails 204 are arranged on both sides of the fixed frame 202, and engaging frames 206 cooperating with the slide rails 204 are arranged on both sides of the unloading plate 205.

[0039] In this embodiment, a through cavity 203 is provided at the bottom of the fixed frame 202, and the through cavity 203 occupies about half of the bottom of the fixed frame 202. In order to ensure that the blanking plate 205 is slidably arranged at the opening of the fixed frame 202, a slide rail 204 and an engagement frame 206 structure that cooperate with each other are designed.

[0040] See attached Figure 4 -Attached Figure 5 A symmetrical vertical frame 207 is fixedly provided on the top of the slide rail 204, and the vertical frame 207 is connected to the unloading plate 205 below through a return spring 208; a rotating shaft 209 is rotatably provided on the inner side of the fixed frame 202, and the rotating shaft 209 is movably installed on the outer wall of the fixed frame 202 through a bearing 210; a protrusion 211 is also fixedly provided on the engaging frame 206, and a unloading swing arm 212 cooperating with the protrusion 211 is installed on the rotating shaft 209, and the linkage motor 330 is connected to the rotating shaft 209 through a unloading belt 213.

[0041] In this embodiment: when the linkage motor 330 drives the rotating shaft 209 to rotate through the unloading belt 213, the unloading swing arm 212 on the rotating shaft 209 can be driven to rotate, and the unloading plate 205 can be driven to move upward under the cooperation of the unloading swing arm 212 and the protrusion 211. Since the bottom of the multiple layers of raw materials stacked on each other are kept in contact with the lower conveyor belt 103 through the through cavity 203, when the unloading plate 205 moves upward and opens the height of the single piece of raw material, the raw material at the bottom will enter from the fixed frame 202 between the upper conveyor belt 102 and the lower conveyor belt 103. When the unloading swing arm 212 is separated from the protrusion 211, the unloading plate 205 returns to its original position downward under the action of the return spring 208.

[0042] See attached Figure 6 An upper slide seat 304 is provided on the inner side of the upper positioning plate 303, and the upper sliding frame 305 is slidably provided on the upper slide seat 304; a lower slide seat 317 is provided on the inner side of the lower positioning plate 316, and the lower sliding frame 318 is slidably provided on the lower slide seat 317; an upper limit arm 306 is provided on one side of the upper sliding frame 305, and an upper limit column 307 cooperating with the upper limit arm 306 is provided on the inner side of the upper positioning plate 303; a lower limit arm 319 is provided on one side of the lower sliding frame 318, and a lower limit column 320 cooperating with the lower limit arm 319 is provided on the inner side of the lower positioning plate 316.

[0043] In this embodiment: when the upper sliding frame 305 drives the upper hot pressing frame 324 to move downward, and the lower sliding frame 318 drives the lower hot pressing frame 325 to move upward, in order to limit the upper sliding frame 305 and the lower sliding frame 318, an upper limit arm 306 and an upper limit column 307 structure that cooperate with each other, as well as a lower limit arm 319 and a lower limit column 320 structure are designed.

[0044] See attached Figure 6 -Attached Figure 7 A lifting block 308 and a falling block 309 are provided on the other side of the upper sliding frame 305, and the lifting block 308 is located above the falling block 309; a cross frame 311 is also fixedly provided on the back of the upper positioning plate 303, and a swinging crank arm 312 is movably provided on the cross frame 311, and the swinging crank arm 312 includes a lower swing block 313 and an upper swing arm 314.

[0045] In this embodiment, in order to cooperate with the swing arm 312 to realize the lifting and lowering of the upper sliding frame 305, a lifting block 308 and a lowering block 309 structure are designed.

[0046] See attached Figure 6 -Attached Figure 7 The top of the drop block 309 is provided with an inclined first slope 310, and the bottom of the lower swing block 313 is provided with a second slope 315 that cooperates with the drop block 309. The linkage swing shaft 331 includes a lifting arm 332 and a drop arm 333, and the length of the lifting arm 332 is greater than the drop arm 333; the lifting arm 332 cooperates with the lifting block 308 to lift the upper sliding frame 305, and the drop arm 333 cooperates with the upper swing arm 314 to drop the upper sliding frame 305.

[0047] In this embodiment, the angle between the lower arm 333 and the upper swing arm 314 is 90 degrees. When the linkage swing shaft 331 rotates clockwise, the upper swing arm 314 on the swing crank arm 312 will deflect counterclockwise under the drive of the lower arm 333, and the lower swing block 313 will separate from the lower block 309. After separation, the swing crank arm 312 returns to its original state under the action of its own gravity, and the upper sliding frame 305 drives the upper hot pressing frame 324 to move downward. At this time, driven by the upper rack 322, the synchronous gear 321 rotates counterclockwise. Driven by the lower rack 323, the lower sliding frame 318 below will also move upward to perform hot pressing molding of the raw materials. When the linkage swing shaft 331 continues to rotate clockwise, the upper sliding frame 305 drives the upper hot pressing frame 324 to move upwards under the cooperation of the lifting arm 332 and the lifting block 308, and the falling block 309 passes over the lower swing block 313 upwards through the cooperation of the first inclined surface 310 and the second inclined surface 315. After passing over, the swing arm 312 returns to its original state under the action of its own gravity, and the lower swing block 313 limits the falling block 309. And driven by the upper rack 322, the synchronous gear 321 rotates clockwise, and the lower sliding frame 318 below also moves downward and away from the hot pressing chamber 108.

[0048] In order to ensure that the upper sliding frame 305 automatically drives the upper hot pressing frame 324 to move downward, the weight of the upper sliding frame 305 is much higher than the weight of the lower sliding frame 318.

[0049] See attached Figure 1 and attached Figure 6 A dust suction pump 326 is installed on the top of the upper hot pressing frame 324 and the bottom of the lower hot pressing frame 325, upper dust suction pipes 327 facing downward are arranged on both sides of the upper hot pressing frame 324, and lower dust suction pipes 328 facing upward are arranged on both sides of the lower hot pressing frame 325.

[0050] In this embodiment: when the upper hot pressing frame 324 and the lower hot pressing frame 325 on the upper and lower sides move toward the middle, driven by the dust suction pump 326, the upper dust suction pipe 327 and the lower dust suction pipe 328 on the upper and lower sides can absorb the molten debris on both sides of the raw material.

[0051] See attached Figure 1 and attached Figure 8 -Attached Fig. 9A cleaning structure 334 is also provided below the conveying mechanism 1, and the cleaning structure 334 includes symmetrical vertical plates 335, between which a lower crankshaft 336 and an upper crankshaft 337 that cooperate with each other are movably provided, and a limiting plate 342 is also provided between the lower crankshaft 336 and the upper crankshaft 337, a lower gear 339 is fixedly provided in the middle of the lower crankshaft 336, and an upper gear 340 that meshes with the lower gear 339 is fixedly provided in the middle of the upper crankshaft 337, and a plurality of groups of roller brushes 341 are provided on the outer walls on both sides of the upper gear 340, and the lower crankshaft 336 is connected to one of the groups of rollers in the lower conveyor belt 103 through a linkage belt 338.

[0052] In this embodiment: when the lower conveyor belt 103 drives the lower crankshaft 336 to rotate, under the meshing drive of the lower gear 339, the upper gear 340 will drive the roller brushes 341 on both sides to rotate and reciprocate up and down, so that the powder residue on the bottom of the lower conveyor belt 103 can be cleaned intermittently.

[0053] Working principle of the present invention: When the device is used, the raw materials are first pre-processed, and the film to be hot-pressed is attached to the packaging material. Multiple groups of raw materials stacked on each other are placed in the fixed frame 202, and at this time, half of the bottom area of ​​the raw materials is in contact with the lower conveyor belt 103. Then the linkage motor 330 is started, and the rotating shaft 209 and the linkage swing shaft 331 will rotate freely under the drive of the linkage motor 330. First, the unloading plate 205 can be driven to move upward under the cooperation of the unloading swing arm 212 and the protrusion 211. Since the front half of the plate-shaped raw material is in contact with the lower conveyor belt 103, and the upper conveyor belt 102 and the lower conveyor belt 103 are both kept in the started state, the material always keeps the pre-translation state. Therefore, when the unloading plate 205 moves upward and opens the height of the single piece of raw material, the front end of the material is no longer blocked, and the raw material at the bottom will enter from the fixed frame 202 between the upper conveyor belt 102 and the lower conveyor belt 103. When the unloading swing arm 212 is separated from the protrusion 211, the unloading plate 205 returns to its original position under the action of the return spring 208. At this time, the raw material to be hot-pressed moves to the position of the hot-pressing chamber 108 through the upper conveyor belt 102 and the lower conveyor belt 103 on the upper and lower sides, and the linkage swing shaft 331 will continue to rotate clockwise. Driven by the lower arm 333, the upper swing arm 314 on the swing crank arm 312 will deflect counterclockwise, and the lower swing block 313 will be separated from the lower block 309. After separation, the swing crank arm 312 returns to its original state under the action of its own gravity, and the upper sliding frame 305 drives the upper hot pressing frame 324 to move downward. At this time, driven by the upper rack 322, the synchronous gear 321 rotates counterclockwise. Driven by the lower rack 323, the lower sliding frame 318 below will also move upward to perform hot pressing molding on the raw material. After the forming is completed, the raw material continues to move to the next process through the upper conveyor belt 102 and the lower conveyor belt 103.

[0054] When the linkage swing shaft 331 continues to rotate clockwise, the upper sliding frame 305 drives the upper hot pressing frame 324 to move upwards under the cooperation of the lifting arm 332 and the lifting block 308, and the falling block 309 passes over the lower swing block 313 upwards through the cooperation of the first inclined surface 310 and the second inclined surface 315. After passing over, the swing arm 312 returns to its original state under the action of its own gravity, and the lower swing block 313 limits the falling block 309. And driven by the upper rack 322, the synchronous gear 321 rotates clockwise, and the lower sliding frame 318 below also moves downward and away from the hot pressing chamber 108.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A hot pressing device for producing packaging film, comprising a conveying mechanism (1), a feeding mechanism (2) and a forming mechanism (3), characterized in that: The conveying mechanism (1) comprises a support seat (101), and symmetrical upper conveying belts (102) and lower conveying belts (103) are arranged on both sides of the support seat (101), and a hot pressing chamber (108) is formed between the upper conveying belts (102) and the lower conveying belts (103) on both sides; the upper conveying belt (102) is shorter than the lower conveying belt (103), and the unloading mechanism (2) is arranged at a gap formed by the upper conveying belt (102) and the lower conveying belt (103); A positioning frame (107) is provided in the middle of the support seat (101); the forming mechanism (3) comprises an upper forming mechanism (301) and a lower forming mechanism (302) fixedly arranged on the positioning frame (107); the upper forming mechanism (301) comprises an upper positioning plate (303); the lower forming mechanism (302) comprises a lower positioning plate (316); an upper sliding frame (305) is slidably provided on the upper positioning plate (303); and a lower sliding frame (318) is slidably provided on the lower positioning plate (316); a synchronous gear (321) is rotatably provided on the inner side of the positioning frame (107); An upper rack (322) is fixedly provided at the bottom of the upper sliding frame (305), and a lower rack (323) is fixedly provided at the bottom of the lower sliding frame (318); an upper hot pressing frame (324) located in the hot pressing chamber (108) is fixedly connected to the inner side of the upper sliding frame (305), and a lower hot pressing frame (325) is fixedly connected to the inner side of the lower sliding frame (318); a mounting frame (329) is also fixedly connected to the side of the support seat (101), and a linkage motor (330) is also installed on the mounting frame (329), and a linkage swing shaft (331) is provided at the output end of the linkage motor (330); When the output end of the linkage motor (330) rotates, the unloading mechanism (2) unloading of the raw material and the hot pressing molding of the raw material by the upper hot pressing frame (324) and the lower hot pressing frame (325) can be synchronously realized.

2. A hot pressing device for packaging film production according to claim 1, characterized in that: Linkage gears (104) are installed on the sides of the upper conveyor belt (102) and the lower conveyor belt (103); an upper linkage chain (105) is connected between the linkage gears (104) on the upper conveyor belt (102); and a lower linkage chain (106) is connected between the linkage gears (104) on the lower conveyor belt (103).

3. A hot pressing device for packaging film production according to claim 1, characterized in that: The unloading mechanism (2) comprises a support rod (201) fixedly arranged on the side of the support seat (101); a fixed frame (202) is fixedly arranged on the top of the support rod (201); a through cavity (203) located above the lower conveyor belt (103) is opened at the bottom of the fixed frame (202); an unloading plate (205) is slidably arranged on the inner side of the fixed frame (202); slide rails (204) are arranged on both sides of the fixed frame (202); and engaging frames (206) cooperating with the slide rails (204) are arranged on both sides of the unloading plate (205).

4. A hot pressing device for packaging film production according to claim 3, characterized in that: A symmetrical vertical frame (207) is fixedly provided on the top of the slide rail (204), and the vertical frame (207) is connected to the blanking plate (205) below via a return spring (208); a rotating shaft (209) is rotatably provided on the inner side of the fixed frame (202), and the rotating shaft (209) is movably mounted on the outer wall of the fixed frame (202) via a bearing (210); a protrusion (211) is also fixedly provided on the engagement frame (206), and a blanking swing arm (212) that cooperates with the protrusion (211) is installed on the rotating shaft (209), and the linkage motor (330) is connected to the rotating shaft (209) via a blanking belt (213).

5. A hot pressing device for packaging film production according to any one of claims 1 to 4, characterized in that: An upper slide seat (304) is arranged on the inner side of the upper positioning plate (303), and the upper sliding frame (305) is slidably arranged on the upper slide seat (304); a lower slide seat (317) is arranged on the inner side of the lower positioning plate (316), and the lower sliding frame (318) is slidably arranged on the lower slide seat (317); an upper limit arm (306) is arranged on one side of the upper sliding frame (305), and an upper limit column (307) cooperating with the upper limit arm (306) is arranged on the inner side of the upper positioning plate (303); a lower limit arm (319) is arranged on one side of the lower sliding frame (318), and a lower limit column (320) cooperating with the lower limit arm (319) is arranged on the inner side of the lower positioning plate (316).

6. A hot pressing device for packaging film production according to any one of claims 1 to 4, characterized in that: A lifting block (308) and a falling block (309) are arranged on the other side of the upper sliding frame (305), and the lifting block (308) is located above the falling block (309); a cross frame (311) is also fixedly arranged on the back of the upper positioning plate (303), and a swinging crank arm (312) is movably arranged on the cross frame (311), and the swinging crank arm (312) includes a lower swing block (313) and an upper swing arm (314).

7. A hot pressing device for packaging film production according to claim 6, characterized in that: The top of the falling block (309) is provided with an inclined first slope (310), and the bottom of the swing block (313) is provided with a second slope (315) that matches the falling block (309).

8. The hot pressing device for packaging film production according to claim 6, characterized in that: The linkage swing shaft (331) comprises a lifting arm (332) and a lowering arm (333); the lifting arm (332) is longer than the lowering arm (333); the lifting arm (332) and the lifting block (308) cooperate with each other to lift the upper sliding frame (305), and the lowering arm (333) and the upper swing arm (314) cooperate with each other to lower the upper sliding frame (305).

9. A hot pressing device for packaging film production according to any one of claims 1 to 4, characterized in that: A dust suction pump (326) is installed on the top of the upper hot pressing frame (324) and the bottom of the lower hot pressing frame (325); upper dust suction pipes (327) facing downwards are arranged on both sides of the upper hot pressing frame (324); and lower dust suction pipes (328) facing upwards are arranged on both sides of the lower hot pressing frame (325).

10. A hot pressing device for packaging film production according to any one of claims 1 to 4, characterized in that: A cleaning structure (334) is also provided below the conveying mechanism (1), and the cleaning structure (334) comprises symmetrical vertical plates (335), a lower crankshaft (336) and an upper crankshaft (337) that cooperate with each other are movably provided between the vertical plates (335), a limiting plate (342) is also provided between the lower crankshaft (336) and the upper crankshaft (337), a lower gear (339) is fixedly provided in the middle of the lower crankshaft (336), an upper gear (340) that meshes with the lower gear (339) is fixedly provided in the middle of the upper crankshaft (337), a plurality of groups of roller brushes (341) are provided on the outer walls on both sides of the upper gear (340), and the lower crankshaft (336) is connected to one group of rollers in the lower conveying belt (103) via a linkage belt (338).

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