An automatic PET plastic steel strapping device

Abstract

This utility model discloses an automatic PET plastic steel strapping stacking device, relating to the field of packaging material processing equipment. It includes: a strapping feeding mechanism comprising a conveyor belt and a position adjustment component mounted on the conveyor belt; a bending and forming mechanism comprising a fixed guide wheel group, a movable guide wheel group, and a hot air shaping component; the fixed guide wheel group is located at the end of the conveyor belt, with its inlet centerline opposite to the conveyor centerline; the movable guide wheel group is slidably mounted on the outlet side of the fixed guide wheel group; the hot air shaping component is located on one side of the fixed and movable guide wheel groups; a stacking platform is located on the outlet side of the movable guide wheel group, and a lifting mechanism is provided at its bottom; a positioning column is rotatably mounted on the stacking platform, with several negative pressure suction holes opened on the side wall of the positioning column, and a negative pressure generator is connected inside the positioning column. This application can realize automatic bending and circular stacking of PET plastic steel strapping, and can shape the circularly stacked strapping to prevent it from springing back.

Description

Technical Field

[0001] This utility model relates to the field of packaging material processing equipment, and more specifically, to an automatic PET plastic steel strapping device. Background Technology

[0002] PET plastic steel strapping is widely used in the bundling and packaging of products in industries such as logistics, building materials, papermaking, and metallurgy due to its advantages such as high strength, high toughness, corrosion resistance, and environmental friendliness.

[0003] PET plastic strapping often needs to be pre-bent into loops for quick access during logistics bundling (such as in manual packing scenarios). Traditional methods rely on manual bending and stacking, which is inefficient, results in poor loop consistency, and the strap loops are prone to springing back and loosening. Existing strapping stacking equipment only supports straight strip stacking and cannot achieve integrated automatic bending and loop stacking. The rigidity of the plastic strapping results in a large rebound force when passively bent, and forced stacking can cause interlayer misalignment or even stack collapse. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic PET plastic steel strapping device, which can realize the automatic bending and circular stacking of plastic steel strapping, and can shape the circular stacked strapping to prevent it from springing back.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This application provides an automatic PET plastic steel strapping stacking device, including a strapping feeding mechanism, a bending and forming mechanism, a stacking platform, and a control module;

[0007] The belt feeding mechanism includes a conveyor belt and a position adjustment component disposed on the conveyor belt. The position adjustment component is used to adjust the packing strap to always be maintained on the conveying center line of the conveyor belt.

[0008] The bending and forming mechanism includes a fixed guide wheel group, a movable guide wheel group, and a hot air shaping component; the fixed guide wheel group is located at the conveying end of the conveyor belt, with its inlet center line opposite to the conveying center line; the movable guide wheel group is slidably located on the outlet side of the fixed guide wheel group, and is used to clamp the packing strap and move it to bend it; the hot air shaping component is located on one side of the fixed guide wheel group and the movable guide wheel group, and is used to blow hot air toward the packing strap;

[0009] The stacking platform is located on one side of the outlet of the movable guide wheel assembly, and a lifting mechanism is provided at its bottom; a positioning column is rotatably provided on the stacking platform, and several negative pressure suction holes are opened on the side wall of the positioning column, and a negative pressure generator is connected inside the positioning column;

[0010] The control module is electrically connected to the feeding mechanism, bending and forming mechanism and stacking platform respectively, and is used to coordinate the action sequence of each mechanism.

[0011] Furthermore, based on the aforementioned scheme, the conveyor belt is mounted on a frame, the frame including a base frame and opposing side plates mounted on the base frame;

[0012] The position adjustment assembly includes two adjustment plates disposed opposite each other above the conveyor belt. The length of the adjustment plates is greater than the length of the conveyor belt. Both ends of the two adjustment plates extend to the outside of both ends of the conveyor belt, and connecting plates are provided at the bottom of both ends of the adjustment plates. The connecting plates at one end of the two adjustment plates are connected by a bidirectional screw, and a sliding rod passes through the connecting plate at the other end. The sliding rod and the bidirectional screw pass through the two side plates respectively, wherein the bidirectional screw rotates through the side plates.

[0013] Furthermore, based on the aforementioned scheme, a base is provided at the end of the conveyor belt, and the top surface of the base is flush with the top surface of the conveyor belt;

[0014] The fixed guide wheel assembly includes two fixed guide wheels, which are arranged opposite to each other, and their bottoms are connected to a first rotary drive component disposed inside the base; wherein the centers of the two fixed guide wheels are opposite to the center line of the conveyor belt.

[0015] The movable guide wheel assembly includes two movable guide wheels, which are arranged opposite to each other and parallel to the two fixed guide wheels; the bottom of the movable guide wheels is connected to a second rotary drive component that is slidably arranged inside the base; wherein the second rotary drive component is slidably arranged along a direction perpendicular to the conveying direction and is driven to extend and retract by a telescopic drive component.

[0016] Furthermore, based on the aforementioned scheme, the outer walls of both the fixed guide wheel and the movable guide wheel are provided with anti-slip textures.

[0017] Furthermore, based on the aforementioned scheme, the hot air shaping component includes a hot air base and two hot air channels. The hot air base is disposed on one side of the base, and the two hot air channels are respectively spaced apart on one side of the hot air base and face the fixed guide wheel group and the movable guide wheel group and the positioning column respectively. The hot air base has a chamber inside, which is connected to a hot air delivery pipe and communicates with the hot air channels. The hot air channels have multiple hot air outlets at their air outlets.

[0018] Furthermore, based on the aforementioned scheme, infrared sensors are embedded in the outer end faces of the two hot air channels, and the infrared sensors are electrically connected to the control module.

[0019] Furthermore, based on the aforementioned scheme, the base is stepped, including a first platform for mounting the bending and forming mechanism and a second platform located below one side of the first platform;

[0020] The lifting mechanism is located on the top of the second platform, and the stacking platform is located above the second platform, with its bottom connected to the top of the lifting mechanism;

[0021] The top of the stacking platform has a groove, and a disc is rotatably connected to the groove through a third rotary drive component; the positioning post is located at the center of the disc.

[0022] The negative pressure generator is disposed inside the groove and communicates with the interior of the positioning post through the through hole via a negative pressure suction tube.

[0023] Furthermore, based on the aforementioned solution, the positioning post includes a fixing post and a sleeve that is detachably sleeved on the outside of the fixing post;

[0024] The fixed column is fixedly connected to the center of the disk. Its interior is hollow and is equipped with the negative pressure generator. The side wall of the fixed column has multiple slots along its axial direction. The two outer walls of the fixed column are provided with sliding grooves along their axial direction.

[0025] The sleeve has sliding strips arranged along its axial direction on its opposite side walls, and the sliding strips are adapted to be connected to the sliding groove; the side walls of the sleeve are provided with a plurality of negative pressure suction holes.

[0026] Furthermore, based on the aforementioned scheme, the top of the stacking platform is connected to an annular pressure plate via a pneumatic pressure rod, and a silicone heating pad is embedded on the bottom surface of the annular pressure plate. The silicone heating pad is electrically connected to the control module.

[0027] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0028] This application utilizes a conveyor belt to transport strapping, and a position adjustment component ensures the strapping remains centered on the conveyor belt. It is suitable for conveying strapping of varying thicknesses and widths. A fixed guide wheel assembly is positioned at the end of the conveyor belt, guiding the strapping towards a movable guide wheel assembly. The movable guide wheel assembly is slidably positioned on the outlet side of the fixed guide wheel assembly, allowing the strapping to be gripped and transported after exiting the fixed guide wheel assembly, and enabling it to bend to one side. A hot air shaping component is then positioned on one side to further enhance the bending effect. The process involves softening the strapping with hot air and then bending and shaping it. A stacking platform is located on one side of the outlet of the movable guide wheel assembly, with a rotatable positioning column on it. Several negative pressure suction holes on the side wall of the positioning column are connected to a negative pressure generator, which can adsorb the strapping onto the side wall and rotate it for circular stacking. A lifting mechanism is set at the bottom of the stacking platform to stack multiple circular strappings into a pile, improving packaging efficiency. A control module is electrically connected to each mechanism, which can be used to coordinate the timing of the actions of each mechanism, thereby realizing the automatic feeding, bending, stacking, and shaping of the strapping. This application can realize the automatic bending and circular stacking of plastic-coated steel strapping, and can shape the circular stacked strapping to prevent it from springing back. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of the automatic PET plastic steel strapping device according to an embodiment of the present invention;

[0031] Figure 2 This is a side view of the stacking platform according to an embodiment of the present invention;

[0032] Figure 3 This is a side sectional view of the first platform according to an embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the fixed column in an embodiment of the present invention.

[0034] Icons: 11-Conveyor belt, 12-Side plate, 13-Base frame, 14-Adjusting plate, 15-Connecting plate, 16-Bidirectional screw, 17-Slide rod, 2-Annular pressure plate, 21-Pneumatic pressure rod, 3-Fixed guide wheel assembly, 4-Modible guide wheel assembly, 41-Modible guide wheel, 42-Second rotary drive component, 43-Telescopic drive component, 5-Hot air shaping assembly, 51-Hot air seat, 52-Hot air channel, 53-Hot air outlet, 54-Infrared sensor, 6-Stacking platform, 61-Lifting mechanism, 62-Positioning column, 621-Fixed column, 622-Sleeve, 623-Strip hole, 624-Slide groove, 625-Negative pressure suction hole, 626-Negative pressure generator, 63-Groove, 64-Disc, 71-First platform, 72-Second platform. Detailed Implementation

[0035] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0036] Please refer to Figures 1-4 The image shows a schematic diagram of the overall structure of an automatic PET plastic strapping stacking device.

[0037] This embodiment provides an automatic PET plastic steel strapping stacking device, including a strapping feeding mechanism, a bending and forming mechanism, a stacking platform 6, and a control module;

[0038] The feeding mechanism includes a conveyor belt 11 and a position adjustment component disposed on the conveyor belt 11. The position adjustment component is used to adjust the packing strap to always be kept on the conveying center line of the conveyor belt 11.

[0039] The bending and forming mechanism includes a fixed guide wheel group 3, a movable guide wheel group 4, and a hot air shaping component 5; the fixed guide wheel group 3 is located at the end of the conveyor belt 11, with its inlet center line opposite to the conveyor center line; the movable guide wheel group 4 is slidably located on the outlet side of the fixed guide wheel group 3, and is used to clamp the packing strap and move it to bend it; the hot air shaping component 5 is located on one side of the fixed guide wheel group 3 and the movable guide wheel group 4, and is used to blow hot air toward the packing strap;

[0040] The stacking platform 6 is located on the outlet side of the movable guide wheel group 4, and a lifting mechanism 61 is provided at its bottom; a positioning column 62 is rotatably provided on the stacking platform 6, and several negative pressure suction holes 625 are opened on the side wall of the positioning column 62, and a negative pressure generator 626 is connected inside the positioning column 62.

[0041] The control module is electrically connected to the belt feeding mechanism, bending and forming mechanism and stacking platform 6 respectively, and is used to coordinate the action sequence of each mechanism.

[0042] The following will further describe an automatic PET plastic steel strapping device according to this exemplary embodiment.

[0043] In some embodiments, the aforementioned feeding mechanism includes a frame, a conveyor belt 11, and a position adjustment assembly disposed on the conveyor belt 11. The frame includes a base frame 13 and two opposing side plates 12 disposed on the base frame 13. The conveyor belt 11 is a conventional conveyor belt 11, which can be conveyed by conveying rollers disposed on the frame. The position adjustment assembly is used to adjust the strapping to always remain on the conveying centerline of the conveyor belt 11, so that the strapping can be accurately fed into the fixed guide wheel assembly 3. The position adjustment assembly includes two adjusting plates 14 disposed opposite each other above the conveyor belt 11. The length of the adjusting plates 14 is greater than the length of the conveyor belt 11, and the two ends of the two adjusting plates 14 extend to the outside of the two ends of the conveyor belt 11, which can guide the input and output of the strapping and prevent it from falling off at the ends. Connecting plates 15 are provided at the bottom of both ends of the adjusting plate 14. One end of the connecting plate 15 of the two adjusting plates 14 is connected by a bidirectional screw 16, and the other end of the connecting plate 15 is fitted with a sliding rod 17. The sliding rod 17 and the bidirectional screw 16 are respectively inserted into the two side plates 12, with the bidirectional screw 16 rotatably inserted into the side plate 12. That is, by rotating the bidirectional screw 16 at one end, the two adjusting plates 14 can be synchronously driven to move closer or further apart. The sliding rod 17 at the other end connects and fixes the two adjusting plates 14, ensuring stable adjustment. To further improve its movement stability, a telescopic rod can also be provided between the middle of the adjusting plate 14 and the side plate 12 of the frame.

[0044] It should be noted that the strapping is conveyed vertically, which facilitates subsequent circular stacking and feeding into the fixed guide wheel set 3. It is suitable for conveying strapping of different thicknesses and widths. During conveying, it is limited by two adjusting plates 14.

[0045] In some embodiments, a base is provided at the end of the conveyor belt 11, with the top surface of the base flush with the top surface of the conveyor belt 11. A fixed guide wheel assembly 3 is disposed at the conveying end of the conveyor belt 11, including two fixed guide wheels arranged opposite each other, with their bottoms connected to a first rotary drive component disposed inside the base; wherein the centers of the two fixed guide wheels are aligned with the centerline of the conveyor belt 11. This allows the strapping to be accurately conveyed between the two fixed guide wheels, which are driven to rotate by the first rotary drive component, thereby guiding the strapping and feeding it into the movable guide wheel assembly 4 at the rear end.

[0046] It should be noted that the distance between the two fixed guide wheels can also be set as an adjustable structure, such as by connecting it to the base via a slider and locking it with bolts or other structures. When adjustment is needed, the bolts can be loosened.

[0047] In some embodiments, the aforementioned movable guide wheel assembly 4 is slidably disposed on the outlet side of the fixed guide wheel assembly 3, used to clamp and move the packing strap, causing it to bend. The movable guide wheel assembly 4 includes two movable guide wheels 41, which are arranged opposite to each other and parallel to the two fixed guide wheels. The bottom of the movable guide wheels 41 is connected to a second rotary drive member 42 slidably disposed inside the base. The second rotary drive member 42 is slidably disposed perpendicular to the conveying direction and is driven to extend and retract by a telescopic drive member 43. That is, when the packing strap is conveyed to the two movable guide wheels 41, the two movable guide wheels 41 are driven to rotate by the second rotary drive member 42 to assist in its continued conveying. At the same time, the two movable guide wheels 41 are respectively driven by the telescopic drive member 43 to clamp and move the packing strap to one side of the base, causing it to bend, so that it can be fed into the stacking platform 6.

[0048] It should be noted that both the first rotary drive component and the second rotary drive component 42 mentioned above can be configured as a combination of a drive motor and a reducer, and the rotation speed can be adjusted.

[0049] As a preferred embodiment, the outer walls of both the fixed guide wheel and the movable guide wheel 41 are provided with anti-slip textures to prevent the packing strap from slipping and causing conveying failure.

[0050] In some embodiments, the aforementioned hot air shaping component 5 is disposed on one side of the fixed guide wheel assembly 3 and the movable guide wheel assembly 4, for blowing hot air toward the packing strap. It includes a hot air base 51 and two hot air channels 52. The hot air base 51 is disposed on one side of the base, and the two hot air channels 52 are respectively spaced apart on one side of the hot air base 51 and respectively facing the space between the fixed guide wheel assembly 3 and the movable guide wheel assembly 4, and between the movable guide wheel assembly 4 and the positioning post 62. The hot air base 51 has a chamber inside, which is connected to a hot air delivery pipe and communicates with the hot air channels 52. The outlet of the hot air channel 52 is provided with multiple hot air outlets 53. The hot air delivery pipe is connected to the hot air generator, which delivers hot air into the hot air seat 51 and into the two hot air channels 52. The hot air is then blown out evenly from the multiple hot air outlets 53 at the ends of the two hot air channels 52, reaching the parts that are about to bend and the bending parts. Specifically, hot air at 80-120°C is blown to reduce the resilience of the material, soften the packing tape material and prevent it from breaking, and then it is sent into the positioning column 62 for ring stacking.

[0051] In a preferred embodiment, infrared sensors 54 are embedded in the outer end faces of the two hot air channels 52, and the infrared sensors 54 are electrically connected to the control module. By setting the infrared sensors 54, the positioning of the packing strap can be monitored in real time, thereby triggering the positioning column 62 to move.

[0052] In some embodiments, the base is stepped, including a first platform 71 for mounting the bending and forming mechanism and a second platform 72 located below one side of the first platform 71; a lifting mechanism 61 is disposed on top of the second platform 72, and a stacking platform 6 is located above the second platform 72, with its bottom connected to the top of the lifting mechanism 61; furthermore, to increase the lifting stability of the stacking platform 6, multiple telescopic columns are provided between the stacking platform 6 and the second platform 72 to prevent the stacking platform 6 from swaying. The lifting mechanism 61 can be a telescopic cylinder, a telescopic electric cylinder, or other similar structure.

[0053] The top of the stacking platform 6 has a groove 63, and a disc 64 is rotatably connected to the groove 63 via a third rotary drive component; a positioning post 62 is located at the center of the disc 64. The disc 64 is driven to rotate by the third rotary drive component, which in turn drives the positioning post 62 to rotate, thereby rotating and stacking the packing straps.

[0054] It should be noted that the third rotary drive component has the same structure as the first rotary drive component and the second rotary drive component 42, and a connecting post is provided at the bottom center of the disk 64 for transmission connection with the output end of the third rotary drive component, which also facilitates the opening of through holes.

[0055] In some implementations, the control module is electrically connected to the feeding mechanism, the bending and forming mechanism, and the stacking platform 6, respectively, to coordinate the timing of the actions of each mechanism.

[0056] In a preferred embodiment, the positioning post 62 includes a fixing post 621 and a sleeve 622 detachably fitted onto the outside of the fixing post 621. The fixing post 621 is fixedly connected to the center of the disc 64 and has a hollow interior, housing a negative pressure generator 626. The fixing post 621 has multiple slotted holes 623 along its axial direction on its sidewalls; and grooves 624 are provided along its axial direction on its two opposite outer walls. Sliding strips are provided along its axial direction on its opposite sidewalls of the sleeve 622, and these strips are adapted to fit the grooves 624. The sleeve 622 has several negative pressure suction holes 625 on its sidewalls. Through this structural design, the negative pressure generator 626 generates negative pressure inside the fixing post 621, and through the slotted holes 623 and the negative pressure suction holes 625, generates negative pressure suction to adsorb and stack the packing tape. Furthermore, the positioning post 62 can be replaced with sleeves 622 of different diameters, thereby enabling the formation of stacked tapes with different annular diameters. When replacing, simply slide the sleeve 622 onto the outside of the fixed post 621.

[0057] In a preferred embodiment, the top of the stacking platform 6 is connected to an annular pressure plate 2 via a pneumatic pressure rod 21. A silicone heating element is embedded in the bottom surface of the annular pressure plate 2, and the silicone heating element is electrically connected to the control module. The silicone heating element has a heating temperature of 70-90℃ and can be pressed down onto the annular surface under the drive of the pneumatic pressure rod 21, maintaining pressure for 3-5 seconds. This, combined with hot air, enhances the shaping effect and effectively prevents rebound.

[0058] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0059] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. An automatic PET plastic steel strapping stacking device, characterized in that, Includes a belt feeding mechanism, a bending and forming mechanism, a stacking platform, and a control module; The belt feeding mechanism includes a conveyor belt and a position adjustment component disposed on the conveyor belt. The position adjustment component is used to adjust the packing strap to always be maintained on the conveying center line of the conveyor belt. The bending and forming mechanism includes a fixed guide wheel group, a movable guide wheel group, and a hot air shaping component; the fixed guide wheel group is located at the conveying end of the conveyor belt, with its inlet center line opposite to the conveying center line; the movable guide wheel group is slidably located on the outlet side of the fixed guide wheel group, and is used to clamp the packing strap and move it to bend it; the hot air shaping component is located on one side of the fixed guide wheel group and the movable guide wheel group, and is used to blow hot air toward the packing strap; The stacking platform is located on one side of the outlet of the movable guide wheel assembly, and a lifting mechanism is provided at its bottom; a positioning column is rotatably provided on the stacking platform, and several negative pressure suction holes are opened on the side wall of the positioning column, and a negative pressure generator is connected inside the positioning column; The control module is electrically connected to the feeding mechanism, bending and forming mechanism and stacking platform respectively, and is used to coordinate the action sequence of each mechanism.

2. The automatic PET plastic steel strapping stacking device according to claim 1, characterized in that, The conveyor belt is mounted on a frame, which includes a base frame and two opposing side plates mounted on the base frame. The position adjustment assembly includes two adjustment plates disposed opposite each other above the conveyor belt. The length of the adjustment plates is greater than the length of the conveyor belt. Both ends of the two adjustment plates extend to the outside of both ends of the conveyor belt, and connecting plates are provided at the bottom of both ends of the adjustment plates. The connecting plates at one end of the two adjustment plates are connected by a bidirectional screw, and a sliding rod passes through the connecting plate at the other end. The sliding rod and the bidirectional screw pass through the two side plates respectively, wherein the bidirectional screw rotates through the side plates.

3. The automatic PET plastic steel strapping stacking device according to claim 1, characterized in that, The conveyor belt is provided with a base at its end, and the top surface of the base is flush with the top surface of the conveyor belt. The fixed guide wheel assembly includes two fixed guide wheels, which are arranged opposite to each other, and their bottoms are connected to a first rotary drive component disposed inside the base; wherein the centers of the two fixed guide wheels are opposite to the center line of the conveyor belt. The movable guide wheel assembly includes two movable guide wheels, which are arranged opposite to each other and parallel to the two fixed guide wheels; the bottom of the movable guide wheels is connected to a second rotary drive component that is slidably arranged inside the base; wherein the second rotary drive component is slidably arranged along a direction perpendicular to the conveying direction and is driven to extend and retract by a telescopic drive component.

4. The automatic PET plastic steel strapping device according to claim 3, characterized in that, Both the fixed guide wheel and the movable guide wheel have anti-slip textures on their outer walls.

5. The automatic PET plastic steel strapping stacking device according to claim 3, characterized in that, The hot air shaping assembly includes a hot air base and two hot air channels. The hot air base is disposed on one side of the base. The two hot air channels are respectively spaced apart on one side of the hot air base and face the fixed guide wheel group and the movable guide wheel group, and the movable guide wheel group and the positioning column, respectively. The hot air base has a chamber inside, which is connected to a hot air delivery pipe and communicates with the hot air channels. The hot air channels have multiple hot air outlets at their air outlets.

6. The automatic PET plastic steel strapping stacking device according to claim 5, characterized in that, Infrared sensors are embedded in the outer end faces of the two hot air channels, and the infrared sensors are electrically connected to the control module.

7. The automatic PET plastic steel strapping device according to claim 3, characterized in that, The base is stepped and includes a first platform for mounting the bending and forming mechanism and a second platform located below one side of the first platform. The lifting mechanism is located on the top of the second platform, and the stacking platform is located above the second platform, with its bottom connected to the top of the lifting mechanism; The top of the stacking platform has a groove, and a disc is rotatably connected to the groove through a third rotary drive component; the positioning post is located at the center of the disc.

8. The automatic PET plastic steel strapping stacking device according to claim 7, characterized in that, The positioning post includes a fixed post and a sleeve that is detachably sleeved on the outside of the fixed post; The fixed column is fixedly connected to the center of the disk. Its interior is hollow and is equipped with the negative pressure generator. The side wall of the fixed column has multiple slots along its axial direction. The fixed column also has sliding grooves on its two outer walls along its axial direction. The sleeve has sliding strips arranged along its axial direction on its opposite side walls, and the sliding strips are adapted to be connected to the sliding groove; the side walls of the sleeve are provided with a plurality of negative pressure suction holes.

9. The automatic PET plastic steel strapping stacking device according to any one of claims 1-8, characterized in that, The top of the stacking platform is connected to an annular pressure plate via a pneumatic pressure rod. A silicone heating element is embedded in the bottom surface of the annular pressure plate, and the silicone heating element is electrically connected to the control module.

Images