A cutting component and a continuous material supply device having the same

Abstract

The present invention discloses a cutting component and a continuous material supply device having the cutting component. The cutting component includes a cutter driver, a linear slide rail, a cutter, and a limit plate. The cutter includes a cutter bar and a blade installed at the head end of the cutter bar. The cutter bar is connected to the linear slide rail. The cutter driver drives the cutter bar to slide along the linear slide rail so that the blade cuts off the continuous material conveyed on the rotating wheel after passing through the cutting area. The limit plate is movably connected to the guard plate. A linkage component is provided between the cutter bar and the limit plate. When the cutter moves toward the cutting area, the limit plate is driven to separate from the guard plate through the linkage component to form a cutting gap between the guard plate and the limit plate. When the cutter completes cutting and moves away from the cutting area, the limit plate is driven to engage with the guard plate through the linkage component. After the continuous material is cut off, the edge of the packaging bag will be limited by the limit plate and the continuous material will continue to be conveyed along this continuous conveying area, thereby avoiding interruption of the continuous material supply.

Description

[Technical field]

[0001] The invention belongs to the technical field of packaging equipment, and in particular relates to a continuous material supply device. [Background technology]

[0002] Continuous materials refer to products placed in packaging bags, and the packaging bags are connected together. Common products using continuous packaging bags in the prior art include straws and folding spoons. Usually, these continuous packaging materials are quantitatively placed into packaging boxes or containers through continuous material supply devices at the final stage of the filling process.

[0003] The continuous material supply device includes a rotating wheel, a guard plate, and a cutting component. The central axis of the rotating wheel is inside the horizontal plane, and the rotating wheel rotates during operation. The guard plate is installed on one side of the rotating wheel and two guard plates are arranged on one side of the rotating wheel. The guard plate is provided with an arc-shaped limiting structure, and the arc-shaped surface faces the rotating wheel. The guard plate and the rotating wheel are separated to form a conveying area. The two guard plates are also separated, and the area between the two guard plates serves as the movement range of the blade on the cutting component, so the width of the area between the two guard plates must be greater than the thickness of the blade.

[0004] The thickness of the blade is much greater than the wall thickness of the packaging bag. Therefore, when the blade cuts the row of materials, the edge of the packaging bag will curl up. When the blade leaves the area between the two guard plates and enters the initial state, the curled part will be dragged toward the area between the two guard plates. Once the curled part extends into the area between the two guard plates, the row of materials will inevitably leave the conveying area during the next conveying process. This will eventually lead to interruption of the supply of row materials, hindering production progress and reducing production efficiency. [Summary of the invention]

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a cutting component to prevent the row of materials from leaving the conveying area.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A cutting component is used to cut off a row of materials passing through a rotating wheel. Two guard plates are provided on the outer circumferential cover of the rotating wheel, and a cutting area is provided between the two guard plates. The cutting component includes a cutter driver, a linear slide rail, a cutter, and a limit plate. The cutter includes a cutter rod and a blade installed on the head end of the cutter rod. The cutter rod is connected to the linear slide rail. The cutter driver drives the cutter rod to slide along the linear slide rail so that the blade cuts off the row of materials transported on the rotating wheel after passing through the cutting area. The limit plate is movably connected to the guard plate, and a linkage component is provided between the cutter rod and the limit plate. When the cutter moves toward the cutting area, the limit plate is driven to separate from the guard plate by the linkage component to form a cutting gap between the guard plate and the limit plate. When the cutter completes cutting and moves away from the cutting area, the limit plate is driven to engage with the guard plate by the linkage component.

[0008] Preferably, the cutter driver comprises a drive motor, a first eccentric shaft, a connecting rod, and a connecting rod. The axes of the first eccentric shaft and the connecting rod are parallel. The drive motor is connected to the first eccentric shaft. The eccentric end of the first eccentric shaft is hinged to the head end of the connecting rod, the tail end of the connecting rod is hinged to one end of the connecting rod, and the other end of the connecting rod is connected to the cutter rod.

[0009] Preferably, the linkage assembly includes a linkage roller arranged on the knife rod, the limit plate is hinged to the limit plate bracket, the limit plate is provided with an inclined surface acting on the linkage roller on the front side of the hinge point, and the limit plate is connected with a reset spring between the limit plate and the limit plate bracket on the rear side of the hinge point. When the cutter moves toward the cutting area, the limit plate is driven to rotate and separate from the guard plate through the linkage roller. When the cutter moves away from the cutting area, the limit plate is engaged with the guard plate under the action of the reset spring.

[0010] Furthermore, the edge of the guard plate and the edge of the limiting plate are provided with engaging teeth that engage with each other.

[0011] Furthermore, a waist-shaped hole is provided at the tail end of the connecting rod, one end of the connecting rod cooperates with the waist-shaped hole, and the connecting rod is connected with a tension spring.

[0012] Furthermore, a roller guide rail is provided at the rear of the knife rod, and a guide roller is provided on the linear slide rail, and the guide roller slides along the roller guide rail.

[0013] Furthermore, the driving motor and the first eccentric shaft are driven by a synchronous belt.

[0014] On the other hand, the present invention further provides a continuous material supply device, comprising the above-mentioned cutting component.

[0015] Furthermore, it also includes a plurality of breakpoint line forming components distributed along the circumference of the rotating wheel, the breakpoint line forming components include a breakpoint line forming knife and a forming knife driver that drives the breakpoint line forming knife to move, the breakpoint line forming knife includes a blade with breakpoint teeth and a knife rod that fixes the blade, the forming knife driver includes a second eccentric shaft, a rocker arm and a knife sleeve that guides the knife rod to slide, one end of the rocker arm is hinged to the eccentric end of the second eccentric shaft, and the other end is hinged to the rear end of the knife rod.

[0016] Furthermore, the rotating wheel is evenly distributed with die grooves along the circumferential direction, and a fixed knife groove cooperating with the cutting knife is provided between two adjacent die grooves.

[0017] The present invention adopts the above-mentioned technical scheme, a limit plate is set in the cutting area between the two guard plates, and the limit plate is movably connected to the guard plate. When the cutter moves toward the cutting area, the limit plate is driven to separate from the guard plate through the linkage component, and a cutting gap is formed between the guard plate and the limit plate, so that the blade can cut off the continuous material through the cutting gap; when the cutter completes cutting and moves away from the cutting area, the limit plate is driven to engage with the guard plate through the linkage component, so that a continuous conveying area is formed between the limit plate, the guard plate and the rotating wheel. Therefore, the edge of the packaging bag will be limited by the limit plate and continue to be conveyed along this continuous conveying area, and cannot extend outward from the area between the two guard plates, thereby avoiding interruption of the supply of continuous materials.

[0018] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0019] The invention will be further described below in conjunction with the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of a continuous material supply device of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the cutting parts;

[0022] Figure 3 This is a front view of a continuous material supply device of the present invention;

[0023] Figure 4 for Figure 3 Middle AA section view;

[0024] Figure 5 for Figure 3 Middle BB section view;

[0025] Figure 6 It is a rear view of a continuous material supply device of the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0027] Figure numerals: frame 1, conveying component 2, rotating wheel 21, mold groove 211, fixed knife groove 212, rotating wheel drive motor 22, guard plate 23; cutting component 3, first eccentric shaft 31, connecting rod 32, waist-shaped hole 321, connecting rod 33, cutter 34, blade 341, knife rod 342, linkage roller 343, linear slide rail 35, guide roller 351, movable groove 352, limit plate 36, inclined surface 361, cutter drive motor 37; breakpoint line forming component 4, breakpoint line forming knife 41, second eccentric shaft 42, rocker arm 43, knife sleeve 44, forming knife drive motor 45, synchronous belt 46. [Specific implementation method]

[0028] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0029] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0030] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "front", "back", "left", "right", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Embodiment 1

[0034] Reference Figures 1 to 7As shown, a cutting component 3 is a part of the continuous material supply device, which cooperates with the conveying component 2 to cut the conveyed continuous material. The conveying component 2 includes a rotating wheel 21, a rotating wheel driving motor 22 for driving the rotating wheel 21 to rotate, and two guard plates 23 arranged on the outer side of the rotating wheel circumference, and a cutting area is arranged between the two guard plates. It can be understood that the two guard plates here mean two independent guard plate covering areas formed along the circumference of the rotating wheel 21, separated by the cutting area in the middle.

[0035] Among them, the cutting component 3 includes a cutter driver, a linear slide rail 35, a cutter 34, and a limit plate 36. The cutter 34 includes a cutter rod 342 and a blade 341 installed on the head end of the cutter rod. The cutter rod 342 is connected to the linear slide rail 35. The cutter driver drives the cutter rod 342 to slide along the linear slide rail 35, so that the blade cuts off the continuous material after passing through the cutting area.

[0036] The limit plate 36 is movably connected to the guard plate 23, specifically, to the guard plate on the rear side of the conveying direction, so that a limit can be formed on the edge of the continuous row of materials that continue to be conveyed forward. A linkage component is provided between the knife bar and the limit plate. When the cutter moves toward the cutting area, the limit plate is driven to disengage from the guard plate through the linkage component to form a cutting gap between the guard plate and the limit plate. When the cutter completes cutting and moves away from the cutting area, the limit plate is driven to engage with the guard plate through the linkage component, and a continuous conveying area is formed between the limit plate and the guard plate and the rotating wheel. Therefore, the edge of the packaging bag will be limited by the limit plate and continue to be conveyed along the rotating wheel, and cannot extend outward from the area between the two guard plates, so as to maintain the continued conveyance of subsequent continuous rows of materials and avoid interruption of the supply of continuous materials.

[0037] As an embodiment, the cutter driver includes a cutter drive motor 37, a first eccentric shaft 31, a connecting rod 32, and a connecting rod 33. The axes of the first eccentric shaft and the connecting rod are parallel. The cutter drive motor 37 is connected to the first eccentric shaft 31. The eccentric end of the first eccentric shaft is hinged to the head end of the connecting rod 32, the tail end of the connecting rod is hinged to one end of the connecting rod 33, and the other end of the connecting rod is connected to the knife rod 342.

[0038] Furthermore, the linkage assembly includes a linkage roller 343 arranged on the knife rod, the limit plate 36 is hinged to the limit plate bracket, the limit plate is provided with an inclined surface 361 acting on the linkage roller 343 on the front side of the hinge point, and the limit plate 36 is connected with a reset spring between the limit plate 36 and the limit plate bracket on the rear side of the hinge point. When the cutter moves toward the cutting area, the limit plate is driven to rotate and separate from the guard plate through the linkage roller. When the cutter moves away from the cutting area, the limit plate is connected to the guard plate under the action of the reset spring.

[0039] In order to make the limit plate and the guard plate form an uninterrupted joint, the edges of the guard plate and the limit plate are provided with interlocking teeth. The cutting area between the two guard plates is very short. In order to facilitate the limit plate to enter the area, a limit head is provided at the head end of the limit plate. The cross section of the limit head is approximately a right-angled triangle blade structure. The edge of the side where the guard plate and the limit plate meet is provided with an arc portion. After the limit plate swings, only the head end of the limit head enters the inner side of the arc portion, thereby connecting the limit plate and the edge of the guard plate.

[0040] A roller guide rail is provided at the rear of the cutter bar, and the linear slide rail 35 is provided with a guide roller 351, and the guide roller 351 slides along the roller guide rail.

[0041] Furthermore, the linear slide rail 35 is provided with a movable groove 352, and the connecting rod 33 is movable through the movable groove 352 to connect with the knife rod. The movable groove is waist-shaped, so the connecting rod 33 moves linearly along the movable groove 352 to drive the cutter to move linearly. The tail end of the connecting rod 32 is provided with a waist-shaped hole 321, and one end of the connecting rod 33 is matched with the waist-shaped hole 321. One end of the connecting rod 33 is covered with a sleeve that matches the waist-shaped hole 321, and is connected to a limiting sleeve to limit the sleeve. Moreover, the connecting rod 33 is connected to a tension spring to generate a pulling force on the connecting rod toward the cutting area, so that if the cutter 34 encounters a situation where a row of materials are stacked or there are foreign objects during the cutting process, the cutter will return to its position under the tension of the tension spring after retreating.

[0042] It can be understood that the output shaft of the cutter drive motor can be directly connected to the first eccentric shaft, or the cutter drive motor and the first eccentric shaft can be driven by a synchronous belt.

[0043] It is understandable that the cutting component can have a variety of other alternative structures. As long as it has a linear slide rail and a cutter, the knife rod can be driven to slide along the linear slide rail through other structures, which can solve the technical problems to be solved by the present invention in conjunction with the limit plate of this embodiment.

[0044] It can be understood that the rotating wheel 21 is evenly distributed with die grooves 211 along the circumferential direction and a fixed knife groove 212 cooperating with a cutting knife is provided between two adjacent die grooves.

[0045] Embodiment 2

[0046] like Figures 1 to 7As shown, a continuous material supply device includes a frame 1 and a conveying component 2 and a cutting component 3 arranged on the frame 1. The conveying component 2 includes a rotating wheel 21, a rotating wheel driving motor 22 for driving the rotating wheel to rotate, and a guard plate 23 arranged on the outer side of the rotating wheel. The rotating wheel driving motor 22 is installed on the side of the frame facing away from the rotating wheel, and can directly drive the rotating wheel to rotate, or drive the rotating wheel to rotate through an intermediate transmission component. Two guard plates are set in total, and the two guard plates are separated to form a cutting area in the middle. The guard plates are provided with a limiting structure of an arc surface, and the arc surface faces the rotating wheel. The arc surface and the rotating wheel are separated to form a conveying area. The cutting area between the two guard plates serves as the movement range of the blade on the cutting component, so the width of the area between the two guard plates is greater than the thickness of the blade. The specific structure of the cutting component 3 is shown in Example 1. The other structures and working principles of the conveying component 2 are the same as those in the prior art, and will not be repeated here.

[0047] In addition, there is a breakpoint line in the middle of the row of materials, so a plurality of breakpoint line forming components 4 distributed along the circumference of the rotating wheel are provided. The breakpoint line forming components 4 include a breakpoint line forming knife 41 and a forming knife driver for driving the breakpoint line forming knife 41 to move.

[0048] As an embodiment, the breakpoint line forming knife 41 includes a blade with breakpoint teeth and a knife rod for fixing the blade. The forming knife driver includes a second eccentric shaft 42, a rocker rod 43, and a knife sleeve 44 for guiding the knife rod to slide. One end of the rocker rod is hinged to the eccentric end of the second eccentric shaft, and the other end is hinged to the rear end of the knife rod. The rotation of the second eccentric shaft 42 drives the knife rod to move back and forth along the knife sleeve 44. All the knife sleeves 44 are installed on the same arc-shaped knife sleeve fixing plate. The knife rod includes a knife head portion for mounting a blade at the front and a knife tail portion at the rear. Two branch guide rods are arranged side by side between the knife head portion and the knife tail portion, and the two branch guide rods are correspondingly slidably matched with the two knife sleeves.

[0049] Several breakpoint line forming components 4 share a forming knife driving motor 45, the output shaft of the forming knife driving motor is connected to the pulley shaft, and the second eccentric shaft is also connected to the pulley, and the pulley is connected to the synchronous belt 46. Therefore, only one forming knife driving motor is needed to drive all breakpoint line forming components 4.

[0050] The above is only a specific embodiment of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A cutting component, used to cut off the continuous row of materials passing through the rotor, the rotor is covered with two guard plates on the outer side of the circumference, and a cutting area is provided between the two guard plates, characterized in that: The cutting component includes a cutter driver, a linear slide rail, a cutter, and a limit plate. The cutter includes a cutter rod and a blade installed on the head end of the cutter rod. The cutter rod is connected to the linear slide rail. The cutter driver drives the cutter rod to slide along the linear slide rail so that the blade cuts off the row of materials transported on the rotating wheel after passing through the cutting area. The limit plate is movably connected to the guard plate. A linkage component is provided between the cutter rod and the limit plate. When the cutter moves toward the cutting area, the limit plate is driven to separate from the guard plate through the linkage component to form a cutting gap between the guard plate and the limit plate. When the cutter completes cutting and moves away from the cutting area, the limit plate is driven to engage with the guard plate through the linkage component.

2. A cutting component according to claim 1, characterized in that: The cutter driver includes a drive motor, a first eccentric shaft, a connecting rod, and a connecting rod. The axes of the first eccentric shaft and the connecting rod are parallel. The drive motor is connected to the first eccentric shaft. The eccentric end of the first eccentric shaft is hinged to the head end of the connecting rod, the tail end of the connecting rod is hinged to one end of the connecting rod, and the other end of the connecting rod is connected to the cutter rod.

3. A cutting component according to claim 1, characterized in that: The linkage assembly includes a linkage roller arranged on the knife rod, the limit plate is hinged to the limit plate bracket, the limit plate is provided with an inclined surface acting with the linkage roller on the front side of the hinge point, and a reset spring is connected between the limit plate and the limit plate bracket on the rear side of the hinge point. When the cutter moves toward the cutting area, the limit plate is driven to rotate and separate from the guard plate through the linkage roller. When the cutter moves away from the cutting area, the limit plate is engaged with the guard plate under the action of the reset spring.

4. A cutting component according to claim 3, characterized in that: The edge of the guard plate and the edge of the limiting plate are provided with engaging teeth that engage with each other.

5. A cutting component according to claim 2, characterized in that: A waist-shaped hole is arranged at the tail end of the connecting rod, one end of the connecting rod is matched with the waist-shaped hole, and the connecting rod is connected with a tension spring.

6. A cutting component according to claim 2, characterized in that: The driving motor and the first eccentric shaft are driven by a synchronous belt.

7. A cutting component according to claim 1, characterized in that: A roller guide rail is arranged at the rear of the knife rod, and a guide roller is arranged on the linear slide rail, and the guide roller slides along the roller guide rail.

8. A continuous material supply device, characterized in that: A cutting component comprising any one of claims 1 to 7.

9. A continuous material supply device according to claim 8, characterized in that: It also includes a plurality of breakpoint line forming components distributed along the circumference of the rotating wheel, the breakpoint line forming components include a breakpoint line forming knife and a forming knife driver for driving the breakpoint line forming knife, the breakpoint line forming knife includes a blade with breakpoint teeth and a knife rod for fixing the blade, the forming knife driver includes a second eccentric shaft, a rocker arm and a knife sleeve for guiding the knife rod to slide, one end of the rocker arm is hinged to the eccentric end of the second eccentric shaft, and the other end is hinged to the rear end of the knife rod.

10. The continuous material supply device according to claim 8, characterized in that: The rotating wheel is evenly provided with die grooves along the circumferential direction, and a fixed knife groove cooperating with a cutting knife is arranged between two adjacent die grooves.

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