Heat sealing device for packaging bag production line

Abstract

The invention discloses a heat-sealing device for a packaging bag assembly line, comprising a conveyor body, wherein at least one heat-sealing device is arranged on one side of the top of the conveyor body, and a pressing device for driving the heat-sealing device to move up and down is also installed on the heat-sealing device to achieve the purpose of heat sealing, a bag-like article conveying component is arranged on the other side of the top of the conveyor body, and a guide adjustment component is arranged on the side of the conveying component close to the heat-sealing device to achieve displacement of the folding center line of the bag-like article, and a control motor is started to adjust the height of the guide frame and the connecting frame for a certain time, and the whole process does not require secondary adjustment of the bag-like article, but uses the guide adjustment component to adapt to the bag-like article, and the whole process is more automated and intelligent, and the purpose of automatic detection and automatic adjustment is achieved, and the position of the conductive slider between multiple groups of center line detection mechanisms and the adjacent conductive sliders is realized by spiral setting to achieve multiple groups of refined settings.

Description

Technical Field

[0001] The invention belongs to the technical field of heat sealing, and in particular relates to a heat sealing device used in a packaging bag production line. Background Art

[0002] At present, most of the known product packaging bags are made of plastic materials such as PP, PET, and PVC, which are non-degradable and difficult to recycle. They are prone to causing white pollution to the environment and do not meet environmental protection requirements. There are also some paper packaging bags, such as fast food bags for instant food products and garbage collection bags on high-speed trains, but these paper bags can only temporarily store objects and have limited application scenarios. They cannot replace plastic packaging bags as product packaging bags;

[0003] Existing packaging includes the packaging of bag-like articles themselves and the sealing of bag-like articles, both of which require the use of heat-sealing equipment. Some heat-sealing equipment requires the bag-like articles to be aligned and folded before heat-sealing so that the packaging is more neat and beautiful. However, the existing guided folding of bag-like articles requires fine alignment without any deviation. That is, once aligned, long-term uninterrupted work is required, otherwise, realignment will be required if it is interrupted in the middle, resulting in a waste of time and manpower. In addition, when the position is misplaced, the bag-like articles need to be re-introduced for positioning, which is a cumbersome operation and a waste of time. Existing equipment cannot achieve a quick and convenient folding alignment effect and cannot achieve the purpose of automatic calibration. Summary of the invention

[0004] The object of the present invention is to provide a heat sealing device for a packaging bag production line to solve the above-mentioned problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat sealing device for a packaging bag assembly line, comprising a conveyor body, at least one heat sealing device is arranged on one side of the top of the conveyor body, and a pressing device is also installed on the heat sealing device to drive the heat sealing device to move up and down to achieve the purpose of heat sealing, a bag-shaped article conveying component is arranged on the other side of the top of the conveyor body, and a guide adjustment component is arranged on the side of the conveying component close to the heat sealing device;

[0006] The conveying assembly includes a transmission rotating shaft and a detection rotating shaft;

[0007] The detection shaft comprises a shaft body, a detection assembly and an arc-shaped housing, wherein the detection assembly is composed of a plurality of sets of centerline detection mechanisms and the lengths of the plurality of sets of centerline detection mechanisms are arranged in an isosceles trapezoidal shape;

[0008] The centerline detection mechanism includes two slide grooves that are symmetrical about the horizontal center axis of the rotating shaft body, and the two slide grooves are arranged obliquely downward. A conductive slider is arranged inside the slide groove for sliding and slides out of the outside of the rotating shaft body without resistance on the outside of the conductive slider. The rear side and the front side of the bottom of the slide groove are respectively provided with a power connection block 2 and a power connection block 1, and the power connection block 2 on one slide groove is electrically connected to the power connection block 1 on the other slide groove through a transmission line 1 and / or a transmission line 2, and the two power connection blocks 2 are electrically connected to the guide adjustment component to achieve the purpose of automatic detection and automatic adjustment.

[0009] Preferably, the guide adjustment assembly includes two transmission assemblies movably connected to both sides of the conveyor body, a guide frame and a connecting frame are respectively threadedly connected between the two transmission assemblies, and the guide frame and the connecting frame are connected to each other, one side of the guide frame extends to one side of the detection shaft for guiding the bag-like articles, and a guide groove is provided inside the guide frame and the bag-like articles are folded through the guide groove;

[0010] One end of the connecting frame is fixedly connected with a connecting block, and a plurality of metal balls are movably connected on a side of the connecting block close to the guide frame, and the plurality of metal balls are on the horizontal midline of the guide groove for preliminary guidance during folding.

[0011] Preferably, the transmission assembly includes a polished rod movably connected to the conveyor body, the outer sides of the two polished rods are each provided with a pulley and the outer sides of the two pulleys are provided with a synchronous belt for synchronous rotation, the top of the polished rod is fixedly connected to a threaded rod, the two threaded rods are respectively threadedly connected to the guide frame and the connecting frame, the bottom of one of the polished rods is transmission-connected to a motor 1 for power output, and the power connection block 2 is electrically connected to the motor 1 to control the forward and reverse rotation of the motor 1.

[0012] Preferably, the arc-shaped shell surrounds the outside of the rotating shaft body and covers at least three quarters of the outside of the rotating shaft body without hindering the transportation of the bagged articles.

[0013] Preferably, the bottom of the detection shaft and the transmission shaft are both penetrated to the bottom of the conveyor body through the shaft movement, and the shafts are connected to each other through a synchronous belt and / or chain, and the bottom of one of the transmission shafts is connected to a motor 2 for power output.

[0014] Preferably, a manipulator is provided on one side between the guide adjustment component and the heat sealing device, and materials are dropped through the manipulator. A cooling device is also provided on the side of the heat sealing device away from the guide adjustment component for cooling and shaping the bagged articles after heat sealing.

[0015] The technical effects and advantages of the present invention are as follows: the bag-like articles are guided and folded by utilizing the guide grooves on the guide frame, and then flow out from the outlet on one side of the guide frame and are guided to the bottom of the heat sealing device for heat sealing. The present invention utilizes multiple sets of center line detection mechanisms on the detection shaft. When the bag-like articles are conveyed, multiple corresponding conductive sliders are covered according to the width of the bag-like articles. Once the center line is offset, one of the two conductive sliders in a group is in the bag-like article covering area while the other is not and will slide out. At this time, utilizing the design of the power connection block 1 and the power connection block 2, when the two conductive sliders in a group slide out synchronously or are covered synchronously, the two sets of power connection blocks 1 and 2 are connected to the power connection block 1. The two electric blocks are not electrically connected to each other. Once misalignment occurs, that is, one slides out and the other is still in the area covered by the bag-like items, one pair of connecting blocks 1 and 2 will be energized, thereby controlling motor 1 to start for a certain period of time to adjust the height of the guide frame and the connecting frame, so as to achieve the displacement of the folding center line of the bag-like items. The whole process does not require secondary adjustment of the bag-like items, but uses the guide adjustment component to adapt to the bag-like items. The whole process is more automated and intelligent, and achieves the purpose of automatic detection and automatic adjustment. During the period, the position of the conductive slider between multiple sets of center line detection mechanisms and the adjacent conductive sliders is realized by spiral settings to achieve multiple sets of fine settings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 For the present invention Figure 1 A magnified view of the local structure of the middle part A;

[0018] Figure 3 is a side view of the present invention;

[0019] Figure 4 For the present invention Figure 3 A magnified view of the local structure of the middle B part;

[0020] Figure 5 It is a three-dimensional exploded view of the detection shaft of the present invention;

[0021] Figure 6 It is a schematic diagram of the detection shaft of the present invention;

[0022] Figure 7 It is a schematic diagram of the specific structure of the center line detection mechanism of the present invention;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide frame of the present invention.

[0024] In the figure: 1. Conveyor body; 2. Heat sealing equipment; 3. Pressing equipment; 4. Transmission assembly; 401. Threaded rod; 402. Light rod; 403. Pulley; 404. Synchronous belt; 5. Exit; 6. Guide frame; 7. Guide groove; 8. Detection shaft; 801. Shaft body; 802. Detection assembly; 803. Arc shell; 9. Transmission shaft; 10. Connecting block; 11. Connecting frame; 12. Motor 1; 13. Metal sphere; 14. Center line detection mechanism; 1401. Slide; 1402. Conductive slider; 1403. Power connection block 1; 1404. Transmission line 1; 1405. Transmission line 2; 1406. Power connection block 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0026] The present invention provides Figure 1 , 2 , 3, 5, and Figure 6 The heat sealing device for a packaging bag assembly line shown in the figure comprises a conveyor body 1, at least one heat sealing device 2 is arranged on one side of the top of the conveyor body 1, and a pressing device 3 is also installed on the heat sealing device 2 to drive the heat sealing device 2 to move up and down to achieve the purpose of heat sealing, a bag-shaped article conveying component is arranged on the other side of the top of the conveyor body 1, and a guide adjustment component is arranged on the side of the conveying component close to the heat sealing device 2;

[0027] The conveying assembly includes a transmission shaft 9 and a detection shaft 8;

[0028] The detection shaft 8 includes a shaft body 801, a detection assembly 802 and an arc-shaped housing 803. The detection assembly 802 is composed of a plurality of sets of centerline detection mechanisms 14, and the lengths of the plurality of sets of centerline detection mechanisms 14 are arranged in an isosceles trapezoidal shape.

[0029] like Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the centerline detection mechanism 14 includes two slide grooves 1401 symmetrical about the horizontal center axis of the rotating shaft body 801, and the two slide grooves 1401 are arranged obliquely downward, and a conductive slider 1402 is arranged inside the slide groove 1401 to slide and slide out of the outside of the rotating shaft body 801 without resistance on the outside of the conductive slider 1402, and a power connection block 1406 and a power connection block 1403 are respectively arranged on the rear side and the front side of the bottom of the slide groove 1401, and the power connection block 1406 on one slide groove 1401 is electrically connected to the power connection block 1403 on the other slide groove 1401 through the power transmission line 1404 and / or the power transmission line 1405, and the two power connection blocks 1406 are electrically connected to the guide adjustment component to achieve the purpose of automatic detection and automatic adjustment, and the guide groove 7 on the guide frame 6 is used to guide and fold the bag-like items, and then flow out from the outlet 5 on one side of the guide frame 6, and are guided to the bottom of the heat sealing device 2 for heat sealing treatment, and the detection shaft 8 is used. The multiple sets of centerline detection mechanisms 14 on the bag-like articles cover the corresponding multiple conductive sliders 1402 according to the width of the bag-like articles when the bag-like articles are conveyed. Once the centerline is offset, one of the two conductive sliders 1402 in one set will be in the bag-like article coverage area while the other will not slide out. At this time, the design of the power connection block 1 1403 and the power connection block 2 1406 is utilized. When the two conductive sliders 1402 in one set slide out or are covered synchronously, the two sets of power connection blocks 1 1403 and the power connection blocks 2 1406 are electrically disconnected from each other. Once misalignment occurs, that is, one slides out and the other is still in the bag-like article coverage area, one pair of power connection blocks 1 1403 and the power connection blocks 2 1406 will be energized, thereby controlling the motor 12 to start for a certain period of time to adjust the height of the guide frame 6 and the connecting frame 11, thereby realizing the displacement of the folding centerline of the bag-like articles. The entire process does not require secondary adjustment of the bag-like articles.

[0030] Specifically, the guide adjustment assembly includes two transmission assemblies 4 movably connected to both sides of the conveyor body 1, a guide frame 6 and a connecting frame 11 are respectively threadedly connected between the two transmission assemblies 4, and the guide frame 6 and the connecting frame 11 are connected to each other, one side of the guide frame 6 extends to one side of the detection shaft 8 for guiding the bag-like articles, and a guide groove 7 is provided inside the guide frame 6, and the bag-like articles are folded through the guide groove 7;

[0031] One end of the connecting frame 11 is fixedly connected to a connecting block 10 , and a plurality of metal balls 13 are movably connected to one side of the connecting block 10 close to the guide frame 6 , and the plurality of metal balls 13 are used for preliminary guidance of folding on the horizontal midline of the guide groove 7 .

[0032] Specifically, the transmission assembly 4 includes a light rod 402 movably connected to the conveyor body 1, the outer sides of the two light rods 402 are each provided with a pulley 403, and the outer sides of the two pulleys 403 are provided with a synchronous belt 404 for synchronous rotation, a threaded rod 401 is fixedly connected to the top of the light rod 402, and the two threaded rods 401 are respectively threadedly connected to the guide frame 6 and the connecting frame 11, and the bottom of one of the light rods 402 is transmission-connected to a motor 12 for power output, and a power connection block 2 1406 is electrically connected to the motor 12 to control the forward and reverse rotation of the motor 12.

[0033] Specifically, the arc-shaped shell 803 surrounds the outside of the rotating shaft body 801 and covers at least three quarters of the outside of the rotating shaft body 801 without hindering the transportation of the bagged articles.

[0034] Specifically, the bottom of the detection shaft 8 and the transmission shaft 9 are both penetrated to the bottom of the conveyor body 1 through the shaft movement, and the shafts are connected to each other through synchronous belts and / or chains. The bottom of the shaft at the bottom of one of the transmission shafts 9 is connected to the motor 2 for power output. The arrangement of multiple transmission shafts 9 and the synchronous belts and / or chains and motor 2 at the top thereof can drive multiple transmission shafts 9 and the detection shaft 8 to rotate to realize the transmission of bagged items.

[0035] Specifically, a manipulator is provided between the guide adjustment component and the heat sealing device 2 and materials are placed through the manipulator. A cooling device is also provided on the side of the heat sealing device 2 away from the guide adjustment component for cooling and shaping the bagged articles after heat sealing.

[0036] Working principle: When using the present invention, multiple transmission shafts 9 and the synchronous belts and / or chains on the top thereof and the setting of the motor 2 can drive the multiple transmission shafts 9 and the detection shaft 8 to rotate to realize the transmission of bag-like items. The coordinated transmission between the synchronous belt or chain and the motor here is the existing technology, so it is not shown in the figure. Then, the guide groove 7 on the guide frame 6 is used to guide and fold the bag-like items, and then they flow out from the outlet 5 on one side of the guide frame 6 and are guided to the bottom of the heat sealing device 2 for heat sealing treatment. During this period, the traditional bag-like items need to be guided and folded for fine alignment without any deviation. That is, once aligned, it needs to work uninterruptedly for a long time, otherwise it needs to be realigned if it is interrupted in the middle, resulting in a waste of time and labor. The present invention can achieve the purpose of automatic alignment, using multiple sets of center line detection mechanisms 14 on the detection shaft 8. When the bag-like items are conveyed, the corresponding multiple conductive sliders 1402 are covered according to the width of the bag-like items. Once the center line is offset, a When one of the two conductive sliders 1402 in the group is in the bag-like article coverage area and the other is not, it will not slide out. At this time, by using the design of the power connection block 1 1403 and the power connection block 2 1406, when the two conductive sliders 1402 in a group slide out or are covered synchronously, the two groups of power connection blocks 1 1403 and power connection blocks 2 1406 are not electrically connected to each other. Once misalignment occurs, that is, when one slides out and the other is still in the bag-like article coverage area, one pair of power connection blocks 1403 and power connection blocks 2 1406 will be energized, thereby controlling the motor 12 to start for a certain period of time to adjust the height of the guide frame 6 and the connecting frame 11, so as to achieve the displacement of the folding center line of the bag-like article. The whole process does not require secondary adjustment of the bag-like article, but uses the guide adjustment component to adapt to the bag-like article. The whole process is more automated and intelligent, and achieves the purpose of automatic detection and automatic adjustment. During this period, the positions of the conductive sliders 1402 between the multiple groups of center line detection mechanisms 14 and the adjacent conductive sliders 1402 are realized by spiral settings to achieve multiple groups of refined settings.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat sealing device for a packaging bag production line, comprising a conveyor body (1), wherein at least one heat sealing device (2) is arranged on one side of the top of the conveyor body (1), and a pressing device (3) is also installed on the heat sealing device (2) to drive the heat sealing device (2) to move up and down to achieve the purpose of heat sealing, characterized in that: A bag-shaped article conveying component is arranged on the other side of the top of the conveyor body (1), and a guide adjustment component is arranged on the side of the conveying component close to the heat sealing device (2); The conveying assembly comprises a transmission rotating shaft (9) and a detection rotating shaft (8); The detection shaft (8) comprises a shaft body (801), a detection assembly (802) and an arc-shaped housing (803); the detection assembly (802) is composed of a plurality of sets of centerline detection mechanisms (14), and the lengths of the plurality of sets of centerline detection mechanisms (14) are arranged in an isosceles trapezoidal shape; The centerline detection mechanism (14) comprises two slide grooves (1401) symmetrical about the horizontal center axis of the rotating shaft body (801), and the two slide grooves (1401) are arranged obliquely downward, and a conductive slider (1402) is arranged inside the slide groove (1401) and slides out of the rotating shaft body (801) without resistance on the outside of the conductive slider (1402), and a power connection block 2 (1406) is arranged on the rear side of the slide groove (1401), and a power connection block 1 (1403) is arranged on the front side of the bottom of the slide groove (1401), and the power connection block 2 (1406) on one slide groove (1401) is electrically connected to the power connection block 1 (1403) on the other slide groove (1401) through the power transmission line 1 (1404) and / or the power transmission line 2 (1405), and the two power connection blocks 2 (1406) are both electrically connected to the guide adjustment component to achieve the purpose of automatic detection and automatic adjustment; The guide adjustment assembly comprises two transmission assemblies (4) movably connected to two sides of the conveyor body (1), a guide frame (6) and a connecting frame (11) are respectively threadedly connected between the two transmission assemblies (4), and the guide frame (6) and the connecting frame (11) are connected to each other, one side of the guide frame (6) extends to one side of the detection shaft (8) for guiding the bag-like articles, and a guide groove (7) is provided inside the guide frame (6) and the bag-like articles are folded through the guide groove (7); One end of the connecting frame (11) is fixedly connected to a connecting block (10), and a plurality of metal balls (13) are movably connected to a side of the connecting block (10) close to the guide frame (6), and the plurality of metal balls (13) are used for preliminary guidance of folding on the horizontal midline of the guide groove (7); The transmission assembly (4) comprises a light rod (402) movably connected to the conveyor body (1), the outer sides of the two light rods (402) are each provided with a pulley (403), and the outer sides of the two pulleys (403) are provided with a synchronous belt (404) for synchronous rotation, the top of the light rod (402) is fixedly connected to a threaded rod (401), and the two threaded rods (401) are respectively threadedly connected to the guide frame (6) and the connecting frame (11), the bottom of one of the light rods (402) is transmission-connected to a motor 1 (12) for power output, and the power connection block 2 (1406) is electrically connected to the motor 1 (12) to control the forward and reverse rotation of the motor 1 (12).

2. The heat sealing device for a packaging bag production line according to claim 1, characterized in that: The arc-shaped shell (803) surrounds the outside of the rotating shaft body (801) and covers at least three quarters of the outside of the rotating shaft body (801) without hindering the transportation of bagged articles.

3. The heat sealing device for packaging bag production line according to claim 1, characterized in that: The bottoms of the detection rotating shaft (8) and the transmission rotating shaft (9) are both extended to the bottom of the conveyor body (1) through the movable rotating shafts, and the rotating shafts are connected to each other through synchronous belts and / or chains, wherein the bottom of the rotating shaft at the bottom of one of the transmission rotating shafts (9) is connected to a second motor for power output.

4. The heat sealing device for packaging bag production line according to claim 1, characterized in that: A manipulator is provided on one side between the guide adjustment component and the heat sealing device (2), and material delivery is performed through the manipulator.

5. The heat sealing device for packaging bag production line according to claim 1, characterized in that: A cooling device is also provided on the side of the heat sealing device (2) away from the guide adjustment component for cooling and shaping the bag-shaped articles after heat sealing.

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