Continuous automatic heat-sealing packaging device

Abstract

The invention relates to the technical field of heat-seal packaging, in particular to a continuous automatic heat-seal packaging device. During use, a first motor is started to drive a connecting frame to rotate to a first position, then a driving roller pair is started to enable the bottom of a plastic bag roll to vertically descend and stretch into the connecting frame, and at the moment, a clamping assembly is started to clamp and fix the bottom of the plastic bag roll; then the first motor and the driving roller pair are started again, the connecting arm is driven to rotate to the second position, and in the process, according to the length requirement of the plastic bag, the bag cutting component can be stopped and started at any position so that the independent plastic bag can be formed through cutting; when the connecting arm rotates to a second position, the flaring assembly flares an opening in the top of the plastic bag, the discharging hopper is opened, the materials fall into the plastic bag, and the heat sealing component is started to conduct hot-pressing sealing on the plastic bag; and after sealing, the clamping assembly loosens the plastic bag, the first motor drives the connecting arm to return to the first position again, and therefore automatic continuous heat-sealing packaging can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat-sealing packaging, in particular to a continuous automatic heat-sealing packaging device. BACKGROUND

[0002] There are various ways of packaging, such as through cartons or plastic bags. When packaging through plastic bags, the goods to be packaged are usually placed in the plastic bag first, and then the bag opening is heated by a heat-sealing device to seal the bag opening. At present, the heat-sealing packaging process is mostly manually performed by workers using a heat-sealing machine to heat-seal the goods one by one, which is labor-intensive and inefficient. SUMMARY

[0003] The main purpose of the present application is to provide a continuous automatic heat-sealing packaging device to solve the problem that the heat-sealing packaging process is mostly manually performed by workers using a heat-sealing machine to heat-seal the goods one by one, which is labor-intensive and inefficient.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows: A continuous automatic heat-sealing packaging device, comprising a support plate, a feeding roller, a driving pair of rollers, a bag cutting component, a clamping assembly, a flaring assembly, a connecting frame, a rotating shaft, a worm gear, a worm, a first motor, a support arm, a hopper and a heat-sealing component; the support plate is vertically arranged; the feeding roller and the driving pair of rollers are both rotationally connected to the support plate; the feeding roller is used to wind a plastic bag roll; the bag cutting component is below the driving pair of rollers; the rotating shaft is rotationally connected to the support plate and is horizontally arranged; the worm gear is coaxially connected to the rotating shaft, and the worm is rotationally connected to the support plate and engages with the worm gear; the first motor is used to drive the worm to rotate; the clamping assembly and the flaring assembly are arranged in the connecting frame; the hopper is connected to the support plate; the support arm is vertically connected to the middle part of the rotating shaft; the end of the support arm away from the rotating shaft is connected to the connecting frame; the connecting frame can be rotated to a first position and a second position respectively; when the connecting frame is in the first position, the clamping assembly is below the bag cutting component and can clamp the plastic bag roll; the bag cutting component is used to cut the plastic bag roll extending downward from the driving pair of rollers to form a single plastic bag; when the connecting frame is in the second position, the clamping assembly is directly below the hopper; the flaring assembly is used to expand the opening of the plastic bag; and the heat-sealing component is used to heat-seal the plastic bag containing the material.

[0005] Preferably, it further comprises a conveyor belt; the conveyor belt is below the hopper; and the clamping assembly is further used to loosen the plastic bag that has completed heat-sealing so that the plastic bag falls onto the conveyor belt.

[0006] Preferably, the second motor is further included; the driving roller includes a first driving roller and a second driving roller which roll against each other; the first driving roller and the second driving roller are rubber rollers; and the second motor is arranged on the support plate to drive the first driving roller to rotate.

[0007] Preferably, the bag cutting component includes a cutter, a first cylinder, a first connecting plate, a bearing plate and a back-shaped frame; the bearing plate and the first connecting plate are both vertically connected to the support plate; the back-shaped frame is horizontally connected to the support plate; the cutter horizontally slides through the back-shaped frame; the first cylinder is arranged on the first connecting plate; the telescopic end of the first cylinder is connected to the middle part of the side of the cutter which is away from the blade; and the blade of the cutter can abut against the bearing plate.

[0008] Preferably, the clamping assembly includes two clamping components which are symmetrical to each other; the clamping component includes a first clamping block, a second clamping block, a first slide rod, a first spring, a first baffle, a second baffle and a double-sided electromagnet; the connecting frame includes a first frame plate and a second frame plate which are parallel to and opposite to each other, and a third frame plate and a fourth frame plate which are opposite to each other; the two ends of the first slide rod are fixedly connected to the first frame plate and the second frame plate respectively; the first clamping block and the second clamping block are both slidingly sleeved on the first slide rod, and the first clamping block and the second clamping block are symmetrical to the midpoint of the first slide rod; the first clamping block includes a first block wall close to the second clamping block, and the second clamping block includes a second block wall close to the first clamping block; the first block wall is parallel to the second block wall; the first block wall is provided with a first groove; the second block wall is provided with a second groove; and the first slide rod penetrates through the first groove and the second groove respectively. The first slide rod is perpendicular to the first block wall; the first spring is sleeved on the first slide rod, and the two ends of the first spring are connected to the inner bottom wall of the first groove and the inner bottom wall of the second groove respectively; the first spring is always in a compressed state, so that the first clamping block and the second clamping block have a tendency to move away from each other; the double-sided electromagnet of one of the clamping components is connected to the third frame plate; the double-sided electromagnet of the other of the clamping components is connected to the fourth frame plate; the double-sided electromagnet includes a first suction surface and a second suction surface which are parallel to each other; the first baffle is connected to the first clamping block, and the second baffle is connected to the second clamping block; the first baffle and the second baffle are both parallel to the first block wall; the first suction surface is used to suction the first baffle, and the second suction surface is used to suction the second baffle.

[0009] Preferably, the clamping component further comprises a first clamping plate, a second clamping plate, a second sliding rod, a third sliding rod, a first stop block, a second stop block, a second spring and a third spring; the first clamping block further comprises a third block wall parallel to the first block wall; a first long through hole is formed through one side of the first clamping block close to the middle of the connecting frame; a second long through hole is formed through one side of the second clamping block close to the middle of the connecting frame; the second sliding rod is slidably arranged in the first long through hole; the first clamping plate and the first stop block are respectively fixedly connected to two ends of the second sliding rod; the first clamping plate is slidably abutted against the first block wall; the first stop block is slidably abutted against the third block wall; the second spring is arranged in the first long through hole; one end of the second spring is connected to the second sliding rod, and the other end of the second spring is connected to the inner wall of the first long through hole, so that the second spring is always in a compressed state; the elastic force of the second spring makes the first sliding rod have a tendency to move away from the middle of the connecting frame. The second clamping block further comprises a fourth block wall parallel to the second block wall; the third sliding rod is slidably arranged in the second long through hole; the second clamping plate and the second stop block are respectively fixedly connected to two ends of the third sliding rod; the second clamping plate is slidably abutted against the second block wall; the second stop block is slidably abutted against the fourth block wall; the third spring is arranged in the second long through hole; one end of the third spring is connected to the third sliding rod, and the other end of the third spring is connected to the inner wall of the second long through hole, so that the third spring is always in a compressed state; the elastic force of the third spring makes the third sliding rod have a tendency to move away from the middle of the connecting frame.

[0010] Preferably, the first clamping plate and the second clamping plate are both provided with a rubber layer; the first block wall is parallel to the first frame plate.

[0011] Preferably, the flaring assembly comprises two flaring components symmetrical to each other; the flaring components comprise a suction disc, a fourth sliding rod, a fourth spring, a ring-shaped electromagnet, a third baffle and a fourth baffle; one end of the fourth sliding rod of one flaring component is slidably arranged in the first frame plate, and the fourth sliding rod of the other flaring component is slidably arranged in the second frame plate; one end of the fourth sliding rod is connected to the third baffle; the other end of the fourth sliding rod is connected to the fourth baffle; the fourth spring is sleeved on the fourth sliding rod; one end of the fourth spring of one flaring component is connected to the first frame plate, and the other end is connected to the third baffle; one end of the fourth spring of the other flaring component is connected to the second frame plate, and the other end is connected to the third baffle; the suction disc is arranged on the side of the third baffle away from the fourth sliding rod; the two suction discs are opposite to each other; the fourth spring is always in a compressed state, so that the two suction discs have a tendency to approach each other; the ring-shaped electromagnet is sleeved on the fourth sliding rod, and the ring-shaped electromagnet of one flaring component is fixedly connected to the first frame plate, and the ring-shaped electromagnet of the other flaring component is fixedly connected to the second frame plate; the ring-shaped electromagnet is used for attracting the third baffle.

[0012] Preferably, the heat sealing component comprises a connecting arm, a second air cylinder, a third air cylinder, a first heat sealing block, a second heat sealing block and a second connecting plate; the connecting arm is vertically connected to the support arm; the second connecting plate is connected to the support plate; the second air cylinder is arranged on the connecting arm; the third air cylinder is arranged on the second connecting plate; the first heat sealing block is arranged at the telescopic end of the second air cylinder; the second heat sealing block is arranged at the telescopic end of the third air cylinder; when the connecting frame is in the first position or the second position, the support arm is horizontal; when the connecting frame is in the second position, the first heat sealing block and the second heat sealing block are opposite to each other and are both below the connecting frame.

[0013] Preferably, the heat sealing component comprises a connecting arm, a second air cylinder, a third air cylinder, a first heat sealing block, a second heat sealing block and a second connecting plate; the connecting arm is vertically connected to the support arm; the second connecting plate is connected to the support plate; the second air cylinder is arranged on the connecting arm; the third air cylinder is arranged on the second connecting plate; the first heat sealing block is arranged at the telescopic end of the second air cylinder; the second heat sealing block is arranged at the telescopic end of the third air cylinder; when the connecting frame is in the first position or the second position, the support arm is horizontal; when the connecting frame is in the second position, the first heat sealing block and the second heat sealing block are opposite to each other and are both below the connecting frame.

[0014] Compared with the prior art, the present application has at least the following beneficial effects: The continuous automatic heat sealing packaging device can realize automatic continuous packaging, and manual heat sealing packaging of articles one by one by using a heat sealing machine is no longer needed, so that the production efficiency is greatly improved; in specific use, the material is first put into the feeding hopper; then the first motor is started to drive the connecting frame to rotate to the first position, and then the driving roller is started to drive the bottom of the plastic bag roll to vertically descend and extend into the connecting frame, at this time, the clamping assembly is started (and the driving roller is simultaneously stopped), so as to clamp and fix the two sides of the bottom of the plastic bag roll; then the first motor and the driving roller are started again, the first motor drives the supporting arm to rotate counterclockwise to drive the connecting arm to rotate to the second position, in this process, according to the length requirement of the plastic bag, the cutting bag part can be started to cut the plastic bag roll (and the cutting position is close to the sealing position of the plastic bag roll) at any position to form an independent plastic bag, and the independent plastic bag is clamped and fixed by the clamping assembly; when the connecting arm rotates to the second position, the opening of the plastic bag is upward, and the bottom is closed; at this time, the flaring assembly is started to flare the top opening of the plastic bag, the electric control butterfly valve of the feeding hopper is opened after flaring, so that the material falls into the plastic bag after flaring, and after loading, the heat sealing part is started to heat and press the top of the plastic bag; after sealing, the clamping assembly releases the plastic bag, and the plastic bag can be transferred to the next process, and the first motor drives the connecting arm to return to the first position again to start the next packaging cycle, so that automatic continuous heat sealing packaging is realized, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the drawings shown.

[0016] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the continuous automatic heat sealing packaging device of the present application (the connecting frame is in the first position); Figure 2 FIG. 2 is a structural schematic view of an embodiment of the continuous automatic heat sealing packaging device of the present application (the connecting frame is in the second position); Figure 3 FIG. 3 is a structural schematic view of the connecting frame and related parts of an embodiment of the continuous automatic heat sealing packaging device of the present application (without clamping the plastic bag); Figure 1 FIG. 4 is an enlarged schematic view of detail A in FIG. 3; Figure 4 FIG. 5 is a structural schematic view of the connecting frame and related parts of an embodiment of the continuous automatic heat sealing packaging device of the present application (clamping the plastic bag); Figure 5Structure diagram of connecting frame and related components of an embodiment of the continuous automatic heat-seal packaging device (the plastic bag has been clamped, but not flared); Figure 6 Structure diagram of connecting frame and related components of an embodiment of the continuous automatic heat-seal packaging device (the plastic bag has been clamped, but not flared).

[0017] Legend: 110, support plate; 120, feeding reel; 130, first drive roller; 140, second drive roller; 150, discharge hopper; 160, first cylinder; 170, cutter; 180, bearing plate; 190, return frame; 210, first connecting plate; 220, plastic bag roll; 230, rotating shaft; 240, support arm; 250, connecting frame; 260, worm gear; 270, worm; 280, first motor; 290, conveyor belt; 310, first distance measuring sensor; 320, second distance measuring sensor; 330, arc-shaped guard plate; 340, cable; 350, first grooved pulley; 360, second grooved pulley; 370, lifting block; 380, square electromagnet; 390, connecting arm; 410, second cylinder; 420, first heat-seal block; 430, second connecting plate; 440, third cylinder; 450, second heat-seal block; 460, plastic bag; 470, protective cover; 480, clamping component; 490, flaring component; 510, first clamping block; 520, second clamping block; 530, first block wall; 540, second block wall; 550, first recess; 560, second recess; 570, first sliding rod; 580, first spring; 590, first baffle; 610, second baffle; 620, double-sided electromagnet; 630, third block wall; 640, fourth block wall; 650, first clamping plate; 660, second clamping plate; 670, first frame plate; 680, second frame plate; 690, third frame plate; 710, fourth frame plate; 720, third baffle; 730, fourth baffle; 740, fourth sliding rod; 750, ring-shaped electromagnet; 760, suction cup; 770, fourth spring; 780, first long through hole; 790, second long through hole; 810, second sliding rod; 820, third sliding rod; 830, second spring; 840, third spring; 850, first stop block; 860, second stop block.

[0018] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications also change accordingly.

[0021] In addition, the descriptions such as “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first”, “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “plurality” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0022] In the present application, unless otherwise specifically defined and limited, the terms “connection”, “fixing” and the like should be understood in a broad sense, for example, “fixing” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0024] The present application provides a continuous automatic heat sealing packaging device.

[0025] As shown in the accompanying Figure 1 -attached Figure 6As shown, the continuous automated heat-sealing packaging device proposed in this invention includes a support plate 110, a feeding drum 120, drive rollers, a bag-cutting component, a clamping assembly, a flaring assembly, a connecting frame 250, a rotating shaft 230, a worm gear 260, a worm 270, a first motor 280, a support arm 240, a hopper 150, and a heat-sealing component. The support plate 110 is vertically arranged. The feeding drum 120 and the drive rollers are both rotatably connected to the support plate 110. The feeding drum 120 is used to wind plastic bag rolls 220 (the plastic bag rolls 220 are sealed at equal intervals, and the distance between the seals is set according to actual needs). The bag-cutting component is located below the drive rollers. The rotating shaft 230 is rotatably connected to the support plate 110 and is horizontally arranged. The rotating shaft 230 is lower than the bag-cutting component.

[0026] The worm gear 260 is coaxially connected to the rotating shaft 230, and the worm 270 is rotatably connected to the support plate 110, with the worm 270 meshing with the worm gear 260 (the driving connection between the worm gear 260 and the worm 270 can achieve speed reduction and torque increase, and the driving connection between the worm gear 260 and the worm 270 in this embodiment can also achieve self-locking to fix the position of the support arm 240); the first motor 280 is used to drive the worm 270 to rotate; the clamping assembly and the flaring assembly are disposed within the connecting frame 250; the hopper 150 is connected to the support plate 110; the support arm 240 is vertically connected to the middle of the rotating shaft 230; the end of the support arm 240 away from the rotating shaft 230 is connected to the connecting frame 250; the connecting frame 250 can rotate to the first position and the second position respectively (as shown in the attached figures). Figure 1 and attached Figure 2 (As shown); when the connecting frame 250 is in the first position, the clamping assembly is below the bag cutting component and can clamp the plastic bag roll 220; the bag cutting component is used to cut the plastic bag roll 220 extending downward from the drive rollers to form a single plastic bag 460; when the connecting frame 250 is in the second position, the clamping assembly is below the feeding hopper 150 (at this time, the opening of the plastic bag 460 clamped by the clamping assembly is directly below the feeding hopper 150, and the discharge port of the feeding hopper 150 is equipped with an electrically controlled butterfly valve (unlabeled) to control the quantitative feeding); the flaring assembly is used to expand the opening of the plastic bag 460; the heat sealing component is used to heat seal the plastic bag 460 that has been filled with material.

[0027] The continuous automated heat-sealing packaging device proposed in this invention can achieve automated continuous packaging, eliminating the need for manual heat-sealing of items one by one, thus greatly improving production efficiency. In specific use, the material is first fed into the feeding hopper 150; then the first motor 280 is started to drive the connecting frame 250 to rotate to the first position (as shown in the attached diagram). Figure 1Then, the drive rollers are activated to vertically lower the bottom of the plastic bag roll 220 and insert it into the connecting frame 250. At this time, the clamping assembly is activated (and the drive rollers are stopped simultaneously) to clamp and fix the two sides of the bottom of the plastic bag roll 220 respectively. Then, the first motor 280 and the drive rollers are activated again. The first motor 280 drives the support arm 240 to rotate counterclockwise, thereby driving the connecting arm 390 to rotate to the second position. During this process, depending on the length requirement of the plastic bag 460, it can stop at any position and activate the bag cutting component to cut the plastic bag roll 220 (with the cutting position close to the sealing position of the plastic bag roll 220), thereby forming an independent plastic bag 460, and the independent plastic bag 460 is clamped by the clamping assembly. The plastic bag 460 is clamped and fixed in place. When the connecting arm 390 rotates to the second position, the opening of the plastic bag 460 faces upward and the bottom is closed. At this time, the flaring assembly is activated to flare the top opening of the plastic bag 460. After flaring, the electrically controlled butterfly valve of the hopper 150 is opened to allow the material to fall into the flared plastic bag 460. After filling, the heat sealing component is activated to heat-seal the top of the plastic bag 460. After sealing, the clamping assembly releases the plastic bag 460 and transfers it to the next process. Subsequently, the first motor 280 drives the connecting arm 390 back to the first position to restart the next packaging cycle. This achieves automated continuous heat sealing packaging and improves production efficiency.

[0028] In addition, this continuous automated heat-sealing packaging device also includes a conveyor belt 290; the conveyor belt 290 is located below the hopper 150; the clamping component 480 is also used to release the heat-sealed plastic bag 460 so that the plastic bag 460 falls onto the conveyor belt 290 to transfer the sealed plastic bag 460.

[0029] Meanwhile, this continuous automated heat-sealing packaging device also includes a second motor (not shown); the drive rollers include a first drive roller 130 and a second drive roller 140 that roll and abut against each other; both the first drive roller 130 and the second drive roller 140 are rubber rollers (to increase the friction of conveying the plastic bag roll 220); the second motor is mounted on the support plate 110 to drive the first drive roller 130 to rotate; the drive rollers are lower than the feeding roll 120. Through the above technical solution, the structure and function of the drive rollers are improved.

[0030] Specifically, the bag-cutting component includes a cutter 170, a first cylinder 160, a first connecting plate 210, a support plate 180, and a U-shaped frame 190. The support plate 180 and the first connecting plate 210 are both vertically connected to the support plate 110. The U-shaped frame 190 is horizontally connected to the support plate 110. The cutter 170 slides horizontally through the U-shaped frame 190. The first cylinder 160 is disposed on the first connecting plate 210. The telescopic end of the first cylinder 160 is connected to the middle of the side of the cutter 170 opposite to the blade. The blade of the cutter 170 can abut against the support plate 180, thereby cutting the plastic bag roll passing between the cutter 170 and the support plate 180. The support plate 180 is vertically arranged and is close to the vertical centerline between the first drive roller 130 and the second drive roller 140.

[0031] The above technical solution improves the structure and function of the bag cutting component. By activating the extension and retraction of the first cylinder 160, the cutter 170 can be driven to approach or move away from the support plate 180, thereby cutting the plastic bag roll 220 passing between the cutter 170 and the support plate 180 to form an independent plastic bag 460.

[0032] In addition, as attached Figure 4 -Appendix Figure 6 As shown, the clamping assembly (two clamping components 480 respectively used to clamp and fix the two sides of the plastic bag 460) includes two symmetrical clamping components 480; each clamping component 480 includes a first clamping block 510, a second clamping block 520, a first sliding rod 570, a first spring 580, a first baffle 590, a second baffle 610, and a double-sided electromagnet 620; the connecting frame 250 includes a first frame plate 670 and a second frame plate 680 that are parallel and opposite to each other, as well as a third frame plate 690 and a fourth frame plate 710 that are opposite to each other; the two ends of the first sliding rod 570 are respectively fixedly connected to the first frame plate 670 and the second frame plate. 680; The first clamping block 510 and the second clamping block 520 are both slidably sleeved on the first slide rod 570, and the first clamping block 510 and the second clamping block 520 are symmetrical about the midpoint of the first slide rod 570; the first clamping block 510 includes a first wall 530 near the second clamping block 520, and the second clamping block 520 includes a second wall 540 near the first clamping block 510; the first wall 530 is parallel to the second wall 540; the first wall 530 has a first groove 550; the second wall 540 has a second groove 560; the first slide rod 570 passes through the first groove 550 and the second groove 560 respectively.

[0033] The first slide rod 570 is perpendicular to the first wall 530; the first spring 580 is sleeved on the first slide rod 570, and the two ends of the first spring 580 are respectively connected to the inner bottom wall of the first groove 550 and the inner bottom wall of the second groove 560; the first spring 580 is always in a compressed state, so that the first clamping block 510 and the second clamping block 520 tend to move away from each other; the double-sided electromagnet 620 of one clamping component 480 is connected to the third frame plate 690; the other clamping component The double-sided electromagnet 620 of component 480 is connected to the fourth frame plate 710; the double-sided electromagnet 620 includes a first attraction surface (unlabeled) and a second attraction surface (unlabeled) that are parallel to each other; a first baffle 590 is connected to a first clamping block 510, and a second baffle 610 is connected to a second clamping block 520; both the first baffle 590 and the second baffle 610 are parallel to the first wall 530; the first attraction surface is used to attract the first baffle 590, and the second attraction surface is used to attract the second baffle 610. The double-sided electromagnet 620 is used to attract the first baffle 590 and the second baffle 610 respectively; when the connecting frame 250 is in the first position, both sides of the plastic bag 460 can respectively extend between the two first clamping blocks 510 and the second clamping block 520.

[0034] Meanwhile, the aforementioned clamping component 480 also includes a first clamping plate 650, a second clamping plate 660, a second slide rod 810, a third slide rod 820, a first stop block 850, a second stop block 860, a second spring 830, and a third spring 840; the first clamping block 510 also includes a third wall 630 parallel to the first wall 530; a first elongated through hole 780 is provided on one side of the first clamping block 510 near the middle of the connecting frame 250; the second clamping block 520 near the middle of the connecting frame 250... A second elongated through hole 790 is provided on one side; a second slide rod 810 is slidably inserted through the first elongated through hole 780 (the cross-section of the second slide rod 810 is rectangular, and the two outer side walls of the second slide rod 810 are respectively slidably abutting against the two inner side walls of the first elongated through hole 780); the two ends of the second slide rod 810 are respectively vertically fixedly connected to a first clamping plate 650 and a first stop block 850; the first clamping plate 650 is slidably abutting against the first wall 530; the first stop block 850 is slidably abutting against the third wall 630.

[0035] The second spring 830 is disposed inside the first elongated through hole 780; one end of the second spring 830 is connected to the second slide rod 810, and the other end of the second spring 830 is connected to the inner wall of the first elongated through hole 780. The second spring 830 is always in a compressed state; the elastic force of the second spring 830 causes the first slide rod 570 to tend to move away from the center of the connecting frame 250.

[0036] The second clamping block 520 also includes a fourth wall 640 parallel to the second wall 540; the third slide rod 820 is slidably inserted through the second long through hole 790 (the cross-section of the third slide rod 820 is rectangular, and the two outer side walls of the third slide rod 820 are respectively slidably abutting against the two inner side walls of the second long through hole 790); the two ends of the third slide rod 820 are respectively vertically fixedly connected to the second clamping plate 660 and the second stop block 860; the second clamping plate 660 is slidably abutting against the second wall 540; the second stop block 860 is slidably abutting against the fourth wall 640.

[0037] The third spring 840 is disposed inside the second elongated through hole 790; one end of the third spring 840 is connected to the third slide rod 820, and the other end of the third spring 840 is connected to the inner wall of the second elongated through hole 790. The third spring 840 is always in a compressed state; the elastic force of the third spring 840 causes the third slide rod 820 to tend to move away from the center of the connecting frame 250; the first clamping plate 650 and the second clamping plate 660 are parallel to each other and face each other.

[0038] Both the first clamping plate 650 and the second clamping plate 660 are provided with a rubber layer (not shown, used to increase the fixing effect of clamping the plastic bag 460); the first wall 530 is parallel to the first frame plate 670; the first walls 530 of the two first clamping blocks 510 are coplanar, and the second walls 540 of the two second clamping blocks 520 are coplanar, to further improve the structure.

[0039] Specifically, the above technical solution improves the structure and function of the clamping assembly. Under normal circumstances, the double-sided electromagnet 620 is not activated, and a gap is maintained between the first clamping block 510 and the second clamping block 520, allowing the plastic bag roll 220 to extend between the first clamping block 510 and the second clamping block 520 under the drive of the driving rollers. When it is necessary to clamp and fix the plastic bag 460, the double-sided electromagnet 620 is activated to attract the first baffle 590 and the second baffle 610. At this time, the first clamping plate 650 and the second clamping plate 660 move closer to each other and clamp and fix the plastic bag 460 (as shown in the attached figure). Figure 5 (As shown); by setting the clamping component, firstly, it can clamp and fix the plastic bag 460; secondly, it can allow the plastic bag 460 to move to the second position (i.e., below the hopper 150) along with the connecting frame 250; and thirdly, it can provide vertical support for the plastic bag 460 so as to receive the falling material later.

[0040] Furthermore, the aforementioned flaring assembly includes two symmetrical flaring components 490 (the two flaring components 490 are respectively used to suction and pull the two sides of the plastic bag 460, thereby expanding the opening of the plastic bag 460); the flaring component 490 includes a suction cup 760 (specifically an electric suction cup 760), a fourth slide rod 740, a fourth spring 770, a ring electromagnet 750, a third baffle 720, and a fourth baffle 730; the fourth slide rod 740 of one flaring component 490 slides through the first frame plate 670, and the fourth slide rod 740 of the other flaring component 490 slides through the second frame plate 680 (the two fourth slide rods 740 share a central axis); one end of the fourth slide rod 740 located within the connecting frame 250 is connected to the third baffle 720; the other end of the fourth slide rod 740 is connected to the fourth baffle 730 (both the third baffle 720 and the fourth baffle 730 are parallel to the first frame plate 670); the fourth spring 770 is sleeved on... The fourth slide rod 740 has one end of the fourth spring 770 of one flared component 490 connected to the first frame plate 670 and the other end connected to the third baffle 720; one end of the fourth spring 770 of the other flared component 490 is connected to the second frame plate 680 and the other end connected to the third baffle 720; a suction cup 760 is disposed on the side of the third baffle 720 away from the fourth slide rod 740; the two suction cups 760 are directly opposite each other; the fourth spring 770 is always in a compressed state so that the two suction cups 760 tend to move closer to each other; an annular electromagnet 750 is sleeved on the fourth slide rod 740, and the annular electromagnet 750 of one flared component 490 is fixedly connected to the first frame plate 670, and the annular electromagnet 750 of the other flared component 490 is fixedly connected to the second frame plate 680; the annular electromagnet 750 is used to attract the third baffle 720 (the fourth spring 770 is sleeved on the annular electromagnet 750).

[0041] Specifically, the above technical solution improves the structure and function of the flaring assembly; under normal circumstances, the annular electromagnet 750 attracts the third baffle 720 to maintain a gap between the two suction cups 760 (as shown in the attached diagram). Figure 4 (As shown); when it is necessary to widen the opening of the plastic bag 460 (i.e., when the plastic bag 460 has been inserted into the connecting frame 250 and the connecting frame 250 has been rotated to the second position), the annular electromagnet 750 is de-energized, and the two suction cups 760 move closer to each other under the action of the fourth spring 770, so as to attract the outer walls of both sides of the plastic bag 460 respectively (as shown in the attached figure). Figure 5 (As shown), then the annular electromagnet 750 is energized again, and the two suction cups 760 move away from each other, thereby opening the plastic bag 460 and widening the opening (as shown in the attached diagram). Figure 6 (As shown).

[0042] In this embodiment, a protective cover 470 is provided on the outer wall of the first frame plate 670; the support arm 240 is connected to the protective cover 470; and the fourth baffle 730 of one flared component 490 is located inside the protective cover 470.

[0043] Specifically, the above technical solution further improves the structure and function of the flaring assembly and the clamping assembly. When the two suction cups 760 have respectively adhered to the outer walls of both sides of the plastic bag 460, and it is necessary to open the opening of the plastic bag 460, the annular electromagnet 750 is energized again, and the two suction cups 760 move away from each other. During this process, because the first clamping plate 650 is slidably connected to the first clamping block 510, and the second clamping plate 660 is slidably connected to the second clamping block 520, the two suction cups 760 can simultaneously drive the first clamping plate 650 and the second clamping plate 660 on both sides to move closer to each other, so as to prevent the plastic bag 460 from being damaged due to being pulled (as shown in the attached figure). Figure 6 (As shown).

[0044] Specifically, the first slide bar 570 has a rectangular cross-section to ensure that the first clamping block 510 and the second clamping block 520 do not wobble during sliding. By setting the first slide bar 570, the supporting force of the connecting frame 250 on the first clamping block 510 and the second clamping block 520 can be increased, ensuring structural stability. By setting the second spring 830 and the third spring 840, the first clamping plate 650 and the second clamping plate 660 can return to their original positions after the plastic bag 460 is released.

[0045] Furthermore, the aforementioned heat-sealing components include a connecting arm 390, a second cylinder 410, a third cylinder 440, a first heat-sealing block 420, a second heat-sealing block 450, and a second connecting plate 430; the connecting arm 390 is vertically fixedly connected to the support arm 240; the second connecting plate 430 is fixedly connected to the support plate 110; the second cylinder 410 is disposed on the connecting arm 390; the third cylinder 440 is disposed on the second connecting plate 430; the first heat-sealing block 420 is disposed on the telescopic end of the second cylinder 410; the second heat-sealing block 450 is disposed on the telescopic end of the third cylinder 440; when the connecting frame 250 is in the first position or the second position, the support arm 240 is horizontal; when the connecting frame 250 is in the second position (as shown in the attached diagram)... Figure 2 As shown), the first heat-sealing block 420 and the second heat-sealing block 450 are directly opposite each other and are both located below the connecting frame 250.

[0046] Specifically, the above technical solution improves the structure and function of the heat-sealing component; when the plastic bag 460 needs to be heat-sealed, the second cylinder 410 and the third cylinder 440 are activated simultaneously, thereby driving the first heat-sealing block 420 and the second heat-sealing block 450 to approach each other and press against the two sides of the plastic bag 460 near the opening to achieve heat-sealing.

[0047] Meanwhile, this continuous automated heat-sealing packaging device also includes a pull assembly; the pull assembly includes a first grooved wheel 350, a second grooved wheel 360, a pull cable 340, a lifting block 370, and a square electromagnet 380; the first grooved wheel 350 and the second grooved wheel 360 are both rotatably connected to the support plate 110; the first grooved wheel 350 and the second grooved wheel 360 are respectively located on both sides of the rotating shaft 230, and both are higher than the rotating shaft 230; one end of the pull cable 340 is connected to the support arm 240 near the connecting frame 250; the pull cable 340 is sequentially wound around the first grooved wheel 350 and the second grooved wheel 360, and the other end of the pull cable 340 is connected to the lifting block 370; the lifting block 370 can rise and fall freely; the lifting block 370 is located on the side of the rotating shaft 230 near the drive rollers; the square electromagnet 380 is set on the support plate 110; when the connecting frame 250 is in the second position, the square electromagnet 380 can attract and fix the lifting block 370.

[0048] Specifically, the above technical solution further improves the structure and function of this continuous automated heat sealing packaging device; when the connecting frame 250 is in the second position, the square electromagnet 380 can attract and fix the lifting block 370, thereby vertically pulling and supporting the support arm 240 to enhance the support force for the connecting arm 390 and the plastic bag 460 containing the material, and the cable 340 will not hinder the rotation of the support arm 240.

[0049] In addition, this continuous automated heat-sealing packaging device also includes a controller (e.g., a microcontroller), a first distance sensor 310, and a second distance sensor 320 (e.g., a laser distance sensor). Both the first distance sensor 310 and the second distance sensor 320 are connected to the support plate 110 and are located on opposite sides of the rotating shaft 230. Both the first distance sensor 310 and the second distance sensor 320 are used to detect the real-time distance value between themselves and the support arm 240 and send it to the controller. The controller is used to control the first motor 2 based on the real-time distance value. The start / stop and rotation direction of the second motor are controlled by the 80 and the second motor, and the extension and retraction of the first cylinder 160, the second cylinder 410 and the third cylinder 440 are also controlled by the start / stop of the double-sided electromagnet 620, the ring electromagnet 750 and the square electromagnet 380; the support plate 110 is also provided with an arc-shaped guard plate 330; the arc-shaped guard plate 330 is located on the side of the second ranging sensor 320 away from the rotating shaft 230; the arc-shaped guard plate 330 is used to slide against the cable 340 to prevent the cable 340 from interfering with the second ranging sensor 320.

[0050] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A continuous automated heat-sealing packaging device, characterized in that, The device includes a support plate, a feeding drum, drive rollers, a bag-cutting component, a clamping assembly, a flaring assembly, a connecting frame, a rotating shaft, a worm gear, a worm, a first motor, a support arm, a hopper, and a heat-sealing component. The support plate is vertically positioned. The feeding drum and drive rollers are rotatably connected to the support plate. The feeding drum is used to wind plastic bag rolls. The bag-cutting component is located below the drive rollers. The rotating shaft is rotatably connected to the support plate and is horizontally positioned. The worm gear is coaxially connected to the rotating shaft, and the worm is rotatably connected to the support plate, meshing with the worm gear. The first motor drives the worm to rotate. The clamping assembly and the flaring assembly are located on... The connecting frame is located within the connecting frame; the hopper is connected to the support plate; the support arm is vertically connected to the middle of the rotating shaft; one end of the support arm away from the rotating shaft is connected to the connecting frame; the connecting frame can rotate to a first position and a second position respectively; when the connecting frame is in the first position, the clamping assembly is located below the bag cutting component and can clamp the plastic bag roll; the bag cutting component is used to cut the plastic bag roll extending downward from the driving rollers to form a single plastic bag; when the connecting frame is in the second position, the clamping assembly is located below the hopper; the flaring assembly is used to expand the opening of the plastic bag; the heat sealing component is used to heat seal the plastic bag already filled with material.

2. The continuous automated heat-sealing packaging device according to claim 1, characterized in that, It also includes a conveyor belt; the conveyor belt is located below the hopper; the clamping assembly is also used to release the heat-sealed plastic bag so that the plastic bag falls onto the conveyor belt.

3. The continuous automated heat-sealing packaging device according to claim 1, characterized in that, It also includes a second motor; the drive rollers include a first drive roller and a second drive roller that roll against each other; both the first drive roller and the second drive roller are rubber rollers; the second motor is disposed on the support plate for driving the first drive roller to rotate.

4. The continuous automated heat-sealing packaging device according to claim 1, characterized in that, The bag-cutting component includes a cutter, a first cylinder, a first connecting plate, a support plate, and a U-shaped frame; the support plate and the first connecting plate are both vertically connected to the support plate; the U-shaped frame is horizontally connected to the support plate; the cutter slides horizontally through the U-shaped frame; the first cylinder is disposed on the first connecting plate; the telescopic end of the first cylinder is connected to the middle of the side of the cutter away from the blade; the blade of the cutter can abut against the support plate.

5. The continuous automated heat-sealing packaging device according to claim 1, characterized in that, The clamping assembly includes two symmetrical clamping components; each clamping component includes a first clamping block, a second clamping block, a first sliding rod, a first spring, a first baffle, a second baffle, and a double-sided electromagnet; the connecting frame includes a first frame plate and a second frame plate that are parallel and opposite to each other, as well as a third frame plate and a fourth frame plate that are opposite to each other; the two ends of the first sliding rod are respectively fixedly connected to the first frame plate and the second frame plate; both the first clamping block and the second clamping block are slidably sleeved on the first sliding rod, and the first clamping block and the second clamping block are symmetrical about the midpoint of the first sliding rod; the first clamping block includes a first wall near the second clamping block, and the second clamping block includes a second wall near the first clamping block; the first wall is parallel to the second wall; the first wall has a first groove; the second wall has a second groove; the first sliding rod passes through the first groove and the second groove respectively; The first sliding rod is perpendicular to the first block wall; the first spring is sleeved on the first sliding rod, and the two ends of the first spring are respectively connected to the inner bottom wall of the first groove and the inner bottom wall of the second groove; the first spring is always in a compressed state so that the first clamping block and the second clamping block tend to move away from each other; one of the double-sided electromagnets of the clamping component is connected to the third frame plate; the other double-sided electromagnet of the clamping component is connected to the fourth frame plate; the double-sided electromagnet includes a first attracting surface and a second attracting surface that are parallel to each other; the first baffle is connected to the first clamping block, and the second baffle is connected to the second clamping block; both the first baffle and the second baffle are parallel to the first block wall; the first attracting surface is used to attract the first baffle, and the second attracting surface is used to attract the second baffle.

6. A continuous automated heat-sealing packaging device according to claim 5, characterized in that, The clamping component further includes a first clamping plate, a second clamping plate, a second sliding rod, a third sliding rod, a first stop, a second stop, a second spring, and a third spring; the first clamping block further includes a third wall parallel to the first wall; a first elongated through hole is formed on one side of the first clamping block near the middle of the connecting frame; a second elongated through hole is formed on one side of the second clamping block near the middle of the connecting frame; the second sliding rod slides through the first elongated through hole; the first clamping plate and the first stop are respectively vertically fixedly connected to both ends of the second sliding rod; the first clamping plate slides against the first wall; the first stop slides against the third wall; the second spring is disposed in the first elongated through hole; one end of the second spring is connected to the second sliding rod, and the other end of the second spring is connected to the inner wall of the first elongated through hole; the second spring is always in a compressed state; the elastic force of the second spring causes the first sliding rod to tend to move away from the middle of the connecting frame; The second clamping block also includes a fourth wall parallel to the second wall; the third slide rod slides through the second elongated through hole; the two ends of the third slide rod are respectively vertically fixedly connected to the second clamping plate and the second stop; the second clamping plate slides against the second wall; the second stop slides against the fourth wall; the third spring is disposed in the second elongated through hole; one end of the third spring is connected to the third slide rod, and the other end of the third spring is connected to the inner wall of the second elongated through hole, and the third spring is always in a compressed state; the elastic force of the third spring causes the third slide rod to tend to move away from the center of the connecting frame.

7. A continuous automated heat-sealing packaging device according to claim 6, characterized in that, Both the first clamping plate and the second clamping plate are provided with a rubber layer; the first block wall is parallel to the first frame plate.

8. A continuous automated heat-sealing packaging device according to claim 5, characterized in that, The flaring assembly includes two symmetrical flaring components; each flaring component includes a suction cup, a fourth slide rod, a fourth spring, a ring electromagnet, a third baffle, and a fourth baffle; the fourth slide rod of one flaring component slides through the first frame plate, and the fourth slide rod of the other flaring component slides through the second frame plate; one end of the fourth slide rod within the connecting frame is connected to the third baffle; the other end of the fourth slide rod is connected to the fourth baffle; the fourth spring is sleeved on the fourth slide rod; one end of the fourth spring of one flaring component is connected to the first frame plate, and the other end is connected to... The third baffle plate; one end of the fourth spring of the other flared component is connected to the second frame plate, and the other end is connected to the third baffle plate; the suction cup is disposed on the side of the third baffle plate opposite to the fourth sliding rod; the two suction cups are directly opposite each other; the fourth spring is always in a compressed state so that the two suction cups tend to move closer to each other; the annular electromagnet is sleeved on the fourth sliding rod, and the annular electromagnet of one of the flared components is fixedly connected to the first frame plate, and the annular electromagnet of the other flared component is fixedly connected to the second frame plate; the annular electromagnet is used to attract the third baffle plate.

9. A continuous automated heat-sealing packaging device according to claim 1, characterized in that, The heat-sealing component includes a connecting arm, a second cylinder, a third cylinder, a first heat-sealing block, a second heat-sealing block, and a second connecting plate. The connecting arm is vertically fixedly connected to the support arm. The second connecting plate is fixedly connected to the support plate. The second cylinder is disposed on the connecting arm. The third cylinder is disposed on the second connecting plate. The first heat-sealing block is disposed at the telescopic end of the second cylinder. The second heat-sealing block is disposed at the telescopic end of the third cylinder. When the connecting frame is in the first or second position, the support arm is horizontal. When the connecting frame is in the second position, the first heat-sealing block and the second heat-sealing block are directly opposite each other and are both below the connecting frame.

10. A continuous automated heat-sealing packaging device according to claim 1, characterized in that, It also includes a pulling assembly; the pulling assembly includes a first grooved wheel, a second grooved wheel, a cable, a lifting block, and a square electromagnet; the first grooved wheel and the second grooved wheel are both rotatably connected to the support plate; the first grooved wheel and the second grooved wheel are respectively located on both sides of the rotating shaft, and both are higher than the rotating shaft; one end of the cable is connected to the support arm near the connecting frame; the cable is sequentially wound around the first grooved wheel and the second grooved wheel, and the other end of the cable is connected to the lifting block; the lifting block can move freely up and down; the lifting block is located on the side of the rotating shaft closer to the drive rollers; the square electromagnet is disposed on the support plate; when the connecting frame is in the second position, the square electromagnet can attract and fix the lifting block.

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