Automatic binding equipment

Abstract

The invention relates to the technical field of bandage production, in particular to automatic bandage equipment. The equipment integrates the conveying, pulling and winding functions, full automation of binding operation is achieved, the working efficiency is greatly improved, and the manual intervention requirement is reduced. In the acting process, the rotary driving mechanism drives the winding barrel to rotate, and the binding belt starts to be wound. In the winding process, the wound bandage is arranged on the separating plate in a carrying mode, after winding is completed, the jacking mechanism drives the winding cylinder to descend, the wound and coiled bandage is blocked by the separating plate and left on the separating plate, and therefore separation of the bandage and the winding cylinder is achieved. And the stability in the winding process is ensured through carrying of the binding belt on the separating plate. Complex winding and separating functions are achieved through simple up-and-down movement, and the equipment complexity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of binding strap production, and in particular to an automatic binding strap equipment. Background Art

[0002] Banding is widely used in packaging, bundling and other fields. In order to improve work efficiency, automatic banding equipment has emerged. Existing automatic banding equipment usually includes main components such as conveying mechanism, material pulling mechanism and banding winding mechanism.

[0003] The traditional conveying mechanism is mainly used to transport the straps from the storage location to the work area. The pulling mechanism cooperates with the conveying mechanism to clamp the conveyed straps and pull them into the strap winding mechanism to achieve accurate positioning of the straps.

[0004] The strapping winding mechanism is the core part of the automated strapping equipment. Its function is to wrap the strapping around the items to be packaged or bundled. The existing strapping winding mechanism usually includes a winding drum and a driving device. The winding drum is used to actually perform the winding action, while the driving device is responsible for driving the winding drum to rotate.

[0005] However, the strap winding mechanism in the prior art has some shortcomings: 1. The straps are prone to shifting or loosening during winding, affecting the winding quality; 2. After winding is completed, it is difficult to separate the strap from the winding drum, which affects work efficiency.

[0006] Therefore, there is an urgent need for an improved automated strapping device that can solve the above-mentioned problems, improve the quality and efficiency of strapping winding, and enhance the adaptability and automation of the device. Summary of the invention

[0007] In order to solve the above problems, the present invention discloses an automatic strapping device.

[0008] In order to achieve the above objectives, the present application discloses an automated strapping device, including: a conveying mechanism, a pulling mechanism, and a strap winding mechanism. The conveying mechanism is used to convey straps, and the pulling mechanism cooperates with the conveying mechanism to clamp the straps conveyed by the conveying mechanism and pull them into the strap winding mechanism. The strap winding mechanism includes: a winding drum, a rotating drive mechanism, a lifting mechanism and a separation plate. The top of the winding drum has a slot for accommodating the strap to be wound; the rotating drive mechanism is installed on the lower side of the winding drum and is transmission-connected to the winding drum for driving the winding drum to rotate; the separation plate is arranged above the winding drum, and an avoidance groove is provided corresponding to the winding drum.

[0009] In a specific solution, the winding drum further comprises: Two semicircular shells are arranged opposite to each other with a contraction gap, and a compression spring acts between the two. The card slot is divided into two halves and arranged on the two semicircular shells; A support cylinder, sleeved on the lower end of the semicircular shell; Wherein, an outer side of the bottom end of the semicircular shell is formed with an action inclined surface extending downwardly; A guiding inclined surface which is aligned with the active inclined surface is arranged on the inner side of the top end of the support tube; A spring is arranged at the bottom end of the inner cavity of the support tube, and the top end of the spring acts on the winding tube so that the action inclined surface of the semicircular shell is pressed against the guide inclined surface of the support tube.

[0010] In the above scheme, the conveying mechanism includes a feeding unit and a storage unit, the storage unit is composed of a vertically arranged supporting track and a gravity component installed on the supporting track in a vertically movable manner, the gravity component is rotatably equipped with a pressure wheel, and the top two sides of the supporting track are respectively provided with a feeding port and a discharging port; Among them, the feeding unit is located on one side of the feeding port, and is used to convey the strap to the feeding port. The strap goes down from the feeding port, bypasses the pressure wheel, and is then led out through the discharging port, thereby realizing feeding.

[0011] The feeding unit comprises two conveying rollers arranged vertically, a conveying channel allowing the bandage to pass through is formed between the two conveying rollers, and the conveying rollers are driven to rotate by a rotating driving device, thereby conveying the bandage in the conveying channel to the feeding port.

[0012] In a possible implementation manner, a plurality of limiting rollers are rotatably provided on the circumference of the pressure wheel.

[0013] Wherein, both ends of the pressure wheel are covered by the limiting rollers.

[0014] The outer ends of the limiting rollers are arranged to extend outwardly in an inclined manner.

[0015] A counterweight block is detachably mounted on the gravity component.

[0016] The equipment of the present application integrates the functions of conveying, pulling and winding, realizes the full automation of strapping operation, greatly improves work efficiency, and reduces the need for manual intervention. During the operation, the rotary drive mechanism drives the winding drum to rotate and starts to wind the strap. During the winding process, the wound strap is supported on the separation plate. After the winding is completed, the lifting mechanism drives the winding drum to descend, and the wound strap is blocked by the separation plate and remains on the separation plate, thereby realizing the separation of the strap from the winding drum. The support of the strap on the separation plate ensures the stability of the winding process. The complex winding and separation functions are realized by simple up and down movements, reducing the complexity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the automated strapping device in an embodiment of the present application; Figure 2 This is a schematic diagram of the state when the winding drum is not raised in the embodiment of the present application; Figure 3 This is a schematic diagram of the state after the winding drum is raised in the embodiment of the present application; Figure 4 This is a schematic diagram of the state of the winding drum winding the binding tape in the embodiment of the present application; Figure 5 This is a schematic diagram of the specific structure of the winding drum in the embodiment of the present application; Figure 6 This is a schematic diagram of the internal structure of the winding drum in the embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the conveying mechanism in the embodiment of the present application; Figure 8 Schematic diagram of the position of the limiting roller in the embodiment of the present application. DETAILED DESCRIPTION

[0018] The present invention will be further explained below in conjunction with specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] Example 1: Figure 1-4As shown, an automated strapping device comprises: a conveying mechanism 1, a pulling mechanism 2, and a strap winding mechanism 3, wherein the conveying mechanism 1 is used to convey straps, and the pulling mechanism 2 is aligned with the conveying mechanism 1 and is used to clamp the straps conveyed by the conveying mechanism 1 and pull them into the strap winding mechanism 3, wherein the strap winding mechanism 3 comprises: a winding drum 31, a rotating drive mechanism 32, a lifting mechanism 33 and a separating plate 34, wherein the top of the winding drum 31 has a slot 311 for accommodating the strap to be wound; the rotating drive mechanism 32 is installed on the lower side of the winding drum 31 and is transmission-connected to the winding drum 31 for driving the winding drum 31 to rotate; the separating plate 34 is arranged above the winding drum 31, and an avoidance groove 341 is provided corresponding to the winding drum 31.

[0020] In a specific solution, the material pulling mechanism 2 can use a pneumatic or electric clamp, which is arranged in alignment with the conveying mechanism 1 and is equipped with a linear motion mechanism (such as a slide rail or a cylinder) to achieve reciprocating motion after clamping the strap.

[0021] The slot 311 at the top of the winding drum 31 is designed to be U-shaped to facilitate accurate positioning and fixing of the strap. The rotary drive mechanism 32 can use a servo motor or a stepper motor, and cooperate with a reducer to achieve precise control. It is connected to the winding drum 31 through a coupling or a synchronous belt to ensure stable transmission. The lifting mechanism 33 uses a cylinder or an electric push rod to achieve vertical movement of the winding drum 31. At the same time, a guide device can be equipped to ensure the stability and accuracy of the up and down movement.

[0022] The size of the avoidance groove 341 on the separation plate 34 is slightly larger than the cross section of the winding drum 31 , ensuring that the winding drum 31 can pass freely.

[0023] like Figure 2-4 As shown, during operation, the conveying mechanism 1 conveys the strap to the designated position. The lifting mechanism 33 drives the winding drum 31 to rise and pass through the avoidance groove 341 of the separation plate 34, and the strap is clamped by the pulling mechanism 2 and pulled into the clamping groove 311 of the winding drum 31. The rotary drive mechanism 32 drives the winding drum 31 to rotate and start winding the strap. During the winding process, the wound strap is placed on the separation plate 34. After the winding is completed, the lifting mechanism 33 drives the winding drum 31 to descend, and the wound strap is blocked by the separation plate 34 and remains on the separation plate 34, thereby realizing the separation of the strap from the winding drum 31.

[0024] In this embodiment, the strap is supported on the separation plate 34 to ensure the stability of the winding process. The complex winding and separation functions are realized by simple up and down movements, which reduces the complexity of the equipment.

[0025] Example 2: Figure 5-6 As shown, the winding drum 31 further comprises: The two semicircular shells 312 are arranged opposite to each other with a contraction gap, and a compression spring acts between the two. The card slot 311 is divided into two halves and arranged on the two semicircular shells 312; A support tube 35 is sleeved on the lower end of the semicircular shell 312; The outer side of the bottom end of the semicircular shell 312 is formed with an inclined surface 3121 extending downwardly; The inner side of the top end of the support tube 35 is provided with a guide inclined surface 351 which is aligned with the working inclined surface 3121; A spring 352 is provided at the bottom end of the inner cavity of the support tube 35 , and the top end of the spring 352 acts on the winding tube 31 so that the action inclined surface 3121 of the semicircular shell 312 presses against the guide inclined surface 351 of the support tube 35 .

[0026] In order to make the winding drum 31 and the support drum 35 rotate synchronously, a plurality of sliding connection mechanisms can be provided between the action inclined surface 3121 and the guide inclined surface 351. For example, a convex strip is provided on one of the action inclined surface 3121 and the guide inclined surface 351 along its inclination direction, and a slide groove is provided on the other corresponding to the convex strip, and the convex strip is inserted into the slide groove; when the support drum 35 rotates, the convex strip is driven by the slide groove, so that the winding drum 31 rotates synchronously. The sliding of the convex strip in the slide groove ensures the effective transmission of the rotational force.

[0027] In the initial state, the spring 352 pushes the winding cylinder 31, so that the action inclined surface 3121 of the semicircular shell 312 is pressed against the guide inclined surface 351 of the support cylinder 35. At this time, the two semicircular shells 312 are in the maximum expansion state.

[0028] During the winding process, the band is fed into the divided slot 311. The winding drum 31 starts to rotate to wind the band.

[0029] When the lifting mechanism 33 drives the winding drum 31 to descend, the binding belt applies an upward friction force to the semicircular shell 312. The friction force causes the semicircular shell 312 to slide upward along the guiding inclined surface 351.

[0030] Due to the inclined design of the action slope 3121 and the guide slope 351, the two semicircular shells 312 are forced to move closer to the center while sliding upward, and the contraction gap gradually decreases, and the diameter of the winding drum 31 decreases accordingly.

[0031] As the diameter of the winding drum 31 decreases, the contact area between the winding drum 31 and the inner circle of the binding belt is further reduced, making it easier for the winding drum 31 to be completely separated from the binding belt.

[0032] When the winding drum 31 is completely lowered and separated from the binding belt completely.

[0033] The friction force of the strap on the semicircular shell 312 disappears.

[0034] The force of the elastic element (the compression spring acting between the two semicircular shells 312) causes the two semicircular shells 312 to unfold again and return to the initial state.

[0035] Example 3: Figure 7 As shown, the conveying mechanism 1 includes a feeding unit and a storage unit, the storage unit is composed of a vertically arranged support rail 11 and a gravity component 12 mounted on the support rail 11 for vertical movement, the gravity component 12 is rotatably equipped with a pressure wheel 13, and the top sides of the support rail 11 are respectively provided with a feed port 14 and a discharge port 15; The feeding unit is located at one side of the feed port 14 and is used to feed the strap to the feed port 14. The strap goes down from the feed port 14, bypasses the pressure wheel 13, and is then led out through the discharge port 15, thereby achieving feeding.

[0036] The feeding unit includes two conveying rollers 16 arranged vertically, and a conveying channel for allowing the strap to pass through is formed between the two conveying rollers 16. The conveying rollers 16 are driven to rotate by a rotating drive device 17, thereby conveying the strap in the conveying channel to the feed port 14.

[0037] When the strap is loaded, the strap is placed in the conveying channel between two conveying rollers 16 .

[0038] The rotary drive device 17 drives the conveying roller 16 to rotate and conveys the strap to the feed port 14 .

[0039] The strap enters from the feed port 14 and moves downward under the action of gravity (the strap passes around the pressure wheel 13, and the pressure wheel 13 rotates under the action of the strap weight.).

[0040] The gravity component 12 slides down along the supporting track 11 under the action of the weight of the straps and its own weight.

[0041] This process provides continuous tension to the strap, ensuring that it remains taut at all times.

[0042] After the binding belt passes through the pressure wheel 13, it is led out from the discharge port 15. As the binding belt is used, the gravity component 12 will gradually rise to maintain the tension.

[0043] The design of the gravity component 12 and the pressure wheel 13 realizes automatic tension control without the need for an additional tension adjustment device. The design of the storage unit allows for the storage of longer straps, achieving long-term continuous feeding. The vertically arranged support rail 11 makes full use of the vertical space and saves horizontal floor space.

[0044] Example 4: Figure 7-8As shown, in a possible implementation manner, a plurality of limiting rollers 18 are rotatably provided on the circumference of the pressure wheel 13 .

[0045] Wherein, both ends of the pressure wheel 13 are covered by the limiting rollers 18 .

[0046] The outer ends of the limiting rollers 18 are arranged to extend outwardly in an inclined manner.

[0047] A counterweight block 131 is detachably mounted on the gravity component 12 .

[0048] Among them, about the improvement of pressure wheel 13: A plurality of limiting rollers 18 are installed on the circumference of the pressure wheel 13 .

[0049] The limiting roller 18 should be able to rotate freely and can be supported by bearings.

[0050] The number of the limiting rollers 18 can be determined according to the size of the pressure wheel 13, and usually 4 to 8 can be selected.

[0051] The limiting rollers 18 cover both ends of the pressure wheel 13 .

[0052] The outer end of each limiting roller 18 extends outwardly at an angle.

[0053] The tilt angle can be optimized according to the width and material of the strap, and can usually be selected from 15-30 degrees.

[0054] A counterweight 131 is detachably mounted on the gravity component 12 by bolts. The counterweight 131 may be a metal block.

[0055] During operation, the strap enters from the feed port 14 and is guided by the limiting roller 18 when passing through the pressure wheel 13. The inclined design of the limiting roller 18 helps the strap to be automatically centered.

[0056] In addition, the limiting roller 18 covers both ends of the pressure wheel 13. During the feeding process, the strapping belt contacts the limiting roller 18. The limiting roller 18 replaces the sliding friction with rolling friction, which greatly reduces the friction force on the strapping belt during the conveying process. This not only reduces the wear of the strapping belt, but also reduces the energy loss during the conveying process.

[0057] By adding or removing weights 131 from the weight member 12, the tension of the strap can be adjusted.

[0058] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An automated strapping device, comprising: A conveying mechanism (1), a material pulling mechanism (2), and a strap winding mechanism (3), wherein the conveying mechanism (1) is used to convey straps, and the material pulling mechanism (2) is aligned with the conveying mechanism (1) and is used to clamp the straps conveyed by the conveying mechanism (1) and then pull them into the strap winding mechanism (3), characterized in that the strap winding mechanism (3) comprises: a winding drum (31), a rotary drive mechanism (32), a lifting mechanism (33) and a separation plate (34), wherein the top of the winding drum (31) has a slot (311) for accommodating the strap to be wound; the rotary drive mechanism (32) is installed on the lower side of the winding drum (31) and is transmission-connected to the winding drum (31) and is used to drive the winding drum (31) to rotate; the separation plate (34) is arranged above the winding drum (31) and is provided with an avoidance groove (341) corresponding to the winding drum (31).

2. The automated strapping equipment according to claim 1, characterized in that: The winding cylinder (31) further comprises: two semicircular shells (312) which are arranged opposite to each other and have a contraction gap, and a compression spring acts between the two, and the slot (311) is divided into two halves and arranged on the two semicircular shells (312); a support cylinder (35) which is sleeved on the lower end of the semicircular shell (312); wherein the outer side of the bottom end of the semicircular shell (312) is formed with an action inclined surface (3121) which extends downwardly and is inclined; the inner side of the top end of the support cylinder (35) is provided with a guide inclined surface (351) which is aligned with the action inclined surface (3121); the bottom end of the inner cavity of the support cylinder (35) is provided with a spring (352), and the top end of the spring (352) acts on the winding cylinder (31) so that the action inclined surface (3121) of the semicircular shell (312) is pressed against the guide inclined surface (351) of the support cylinder (35).

3. The automated strapping equipment according to claim 1, characterized in that: The conveying mechanism (1) comprises a feeding unit and a storage unit; the storage unit is composed of a vertically arranged support rail (11) and a gravity component (12) mounted on the support rail (11) in a vertically movable manner; a pressure wheel (13) is rotatably mounted on the gravity component (12); and a material inlet (14) and a material outlet (15) are respectively provided on both sides of the top end of the support rail (11); The feeding unit is located at one side of the feed inlet (14) and is used to feed a strap to the feed inlet (14); the strap flows downward from the feed inlet (14), bypasses the pressure wheel (13), and is then led out through the discharge port (15), thereby achieving feeding.

4. The automatic strapping device according to claim 3, characterized in that: The feeding unit comprises two conveying rollers (16) arranged vertically, a conveying channel allowing the bandage to pass through is formed between the two conveying rollers (16), and the conveying rollers (16) are driven to rotate by a rotary drive device (17), thereby conveying the bandage in the conveying channel to the feed port (14).

5. The automated strapping equipment according to claim 3, characterized in that: A plurality of limiting rollers (18) are rotatably arranged in the circumferential direction of the pressure wheel (13).

6. The automated strapping equipment according to claim 5, characterized in that: Both ends of the pressure wheel (13) are covered by the limiting rollers (18).

7. The automated strapping equipment according to claim 5, characterized in that: The outer ends of the limiting rollers (18) are arranged to extend outwards in an inclined manner.

8. The automated strapping equipment according to claim 5, characterized in that: A counterweight block (131) is detachably mounted on the gravity component (12).

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