A packaging material removal device and method of use thereof

Abstract

The invention provides a packaging material removal device comprising a first drive mechanism, a knife assembly mounted on the first drive mechanism and movable in a first direction under the action of the first drive mechanism, a second drive mechanism, a holder assembly mounted on the second drive mechanism, and at least one attachment member mounted on the holder assembly and attachable to a packaging material, characterized in that the knife assembly comprises a cutting knife and a knife holder, the cutting knife being mounted in the knife holder, wherein the knife holder comprises a hook portion, the cutting knife blade is located at the root of the hook portion and within the outer end portion of the hook portion, the hook portion of the knife holder is insertable into a gap, and the outer end portion of the hook portion of the knife holder is located between the contents of the package and the cutting knife blade, the cutting knife being able to cut the packaging material preferably as the knife assembly is moved in the first direction under the action of the first drive member. A method of cutting packaging material using the packaging material removal device is also provided.

Description

Technical Field

[0001] This invention relates to the field of packaging machinery, and more specifically, to a packaging material removal device and its method of use. Background Technology

[0002] In industrial applications, materials such as raw materials are often supplied in packaged form, using packaging materials such as kraft paper. To remove these packages, automatic packaging removal devices are used. In these devices, suction cups pull the packaging material taut, and a cylinder drives a blade to move horizontally, cutting through the packaging material from the outside to complete the unpacking. However, due to the pressure between the blade and the packaging material, and the inherent toughness of the packaging material, some material can be bounced off the blade, breaking free from the suction cups and losing its tension, thus failing to be cut and interrupting the unpacking process. Therefore, existing automatic packaging removal devices need improvement. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a packaging material removal device and its usage method, which can effectively cut the packaging material, thereby reducing the interruption of the unpacking process caused by the packaging material not being cut.

[0004] Another object of the present invention is to provide a packaging material removal device and a method of using the same, which does not damage the items inside the packaging material.

[0005] This invention provides a packaging material removal device for cutting to remove packaging material wrapped around a package. The device includes: a first drive mechanism defining a first direction along its length; a blade assembly mounted on the first drive mechanism and movable along the first direction under the action of the first drive mechanism; a second drive mechanism disposed near the first drive mechanism; a support assembly mounted on the second drive mechanism and movable near the first drive mechanism along a second direction perpendicular to the first direction under the action of the second drive mechanism; and at least one attachment mounted on the support assembly, which, when the support assembly moves along the second direction under the action of the second drive mechanism, allows the attachment to move closer to or further away from the package. The attachment is capable of being attached to the packaging material; characterized in that the knife assembly includes a cutting blade and a blade holder, the cutting blade being mounted in the blade holder, wherein the blade holder includes a hook portion, the cutting edge of the cutting blade being located at the root of the hook portion and within the outer end portion of the hook portion, and after the attachment is attached to the packaging material, the attachment is moved away from the packaging in a second direction by a second driving mechanism, thereby forming a gap between the packaging material and the contents of the packaging, the hook portion of the blade holder being capable of being inserted into the gap, and the outer end portion of the hook portion of the blade holder being located between the contents of the packaging and the cutting edge of the cutting blade, as the knife assembly moves in the first direction under the action of the first driving member, the cutting blade is capable of cutting the packaging material in order to remove the packaging material from the packaging.

[0006] Preferably, the outer end of the hook has a convex curved shape, and when the hook is inserted into the gap, the outer end will abut against the contents of the package.

[0007] Preferably, the maximum width of the gap is D1, and the maximum width of the hook is designed to be equal to or slightly greater than the maximum width of the gap D1. Therefore, when the hook is inserted into the gap, the packaging material can fit tightly against the blade and better complete the cutting action.

[0008] Preferably, the tip of the hook has a shape that facilitates insertion into the gap.

[0009] Preferably, the cutting edge is arranged at an angle in the blade holder.

[0010] Preferably, the knife assembly includes a first knife holder mount and a second knife holder mount, wherein the first knife holder mount and the second knife holder mount are pivotally connected by a pivot, the first knife holder mount is fixed to the first drive mechanism, and a spring is disposed between the first knife holder mount and the second knife holder mount on one side of the pivot, and the knife holder is mounted on the second knife holder mount on the other side of the pivot, so that when the hook of the knife holder is pressed by the contents of the package, the knife holder pushes the second knife holder mount to compress the spring.

[0011] Preferably, the tool assembly further includes a threaded set screw, which is threaded into a threaded hole in the second tool holder mounting on the other side of the pivot. By adjusting the length of the set screw extending from the threaded hole, the initial angle formed by the first and second tool holder mountings around the pivot under the action of the spring can be adjusted.

[0012] Preferably, the blade assembly further includes an adjusting block, through which the blade holder is mounted on the second blade holder mounting member. The adjusting block includes at least one first mounting hole and at least one second mounting hole, wherein the first mounting hole engages with at least one first elongated hole extending along the second direction on the blade holder, and the blade holder is detachably fixed to the adjusting block, thus allowing adjustment of the position of the blade holder in the second direction; the second mounting hole engages with at least one elongated hole extending along a third direction on the second blade holder mounting member, the third direction being perpendicular to the first and second directions, and the adjusting block is detachably fixed to the second blade holder mounting member, thus allowing adjustment of the position of the blade holder fixed to the adjusting block in the third direction.

[0013] Preferably, the blade assembly further includes a blade holder for mounting the cutting blade. The blade holder is mounted in the blade holder. Preferably, the blade holder is plate-shaped, inserted into a slot in the blade holder, and fixed to the blade holder by screws.

[0014] Preferably, the first drive mechanism is composed of a rodless cylinder, the rodless cylinder comprising: a frame, a slide rod fixed on the frame, and a slide table slidable on the slide rod, wherein the slide rod extends along the first direction, and the blade assembly is mounted on the slide table.

[0015] Preferably, the second drive mechanism is composed of a cylinder, and more preferably, the second drive mechanism is composed of a slide cylinder, the slide cylinder comprising: a fixed part and a sliding part, the sliding part being capable of sliding along the second direction, wherein the bracket assembly is mounted on the sliding part.

[0016] Preferably, the support assembly includes a support member, and the attachment member is mounted on the support member. Preferably, the support member includes reinforcing ribs and / or at least one through hole, the reinforcing ribs for enhancing the strength of the support member, and the through hole for reducing the weight of the support member, thereby facilitating its movement in the second direction.

[0017] Preferably, the support assembly includes: a support member mounted on the second drive mechanism and movable along the second direction under the action of the second drive mechanism; a flat plate for locally flattening the packaging material; at least one connecting rod, one end of which is connected to the support member and the other end to the flat plate, the connecting rod extending along the second direction; at least one attachment rod, the attachment member being mounted on one end of the attachment rod, the attachment rod extending along the second direction; an attachment mounting plate, the other end of the attachment rod being mounted on the attachment mounting plate; and at least one bushing mounted on the attachment member. On the mounting plate, the connecting rod passes through the bushing, so the attachment mounting plate can slide along the connecting rod; and a third drive mechanism, mounted on the attachment mounting plate, is used to drive the attachment mounting plate to move along the connecting rod in the second direction, wherein, when the support moves toward the packaging in the second direction under the action of the second drive mechanism, the plate can abut against the packaging material, thereby partially flattening the packaging material, and the plate includes at least one opening aligned with the attachment, so that the attachment can extend or retract from the plate through the opening in the second direction.

[0018] Preferably, the other end of the attachment rod is mounted on the attachment mounting plate by a spring.

[0019] Preferably, the size and position of the plate are configured such that when the hook of the blade holder is inserted into the gap between the packaging material and the contents, and the blade assembly moves along the first direction to cut the packaging material, the lower surface of the blade holder can abut against the upper edge of the plate, so that the blade of the cutting blade and the upper edge of the plate form scissors, thereby applying a shearing force to the packaging material located in the hook, which is beneficial for cutting.

[0020] Preferably, the third drive mechanism is composed of a cylinder.

[0021] Preferably, the attachment mounting plate includes at least one mounting hole, and the other end of the attachment rod is fixed in the mounting hole.

[0022] Preferably, the attachment device is a suction cup.

[0023] This disclosure provides a method for cutting packaging material using the aforementioned packaging material removal device, characterized in that the method includes the following steps: placing the packaging material removal device near the packaging such that a first direction defined by a first drive mechanism is parallel to the direction of the cutting line to be formed on the packaging material, and such that a blade assembly is located outside one end of the packaging material, wherein an attachment is located away from the packaging; activating a second drive mechanism such that a support assembly moves toward the packaging along a second direction until the attachment contacts and attaches to the packaging material; activating the second drive mechanism again such that the attachment, together with the packaging material attached thereto, moves away from the packaging along the second direction by a certain distance, thereby forming a gap between the packaging material and the contents of the packaging; activating the first drive mechanism such that the blade assembly moves toward the packaging along the first direction, so that the hook of the blade holder is inserted into the gap; as the blade assembly continues to move along the first direction, the cutting blade of the blade assembly cuts the packaging material until a through cutting line is formed on the packaging material.

[0024] Preferably, during the step of the support assembly moving toward the packaging in the second direction, the plate abuts against the packaging material, thereby partially flattening the packaging material; the third drive mechanism is activated, causing the attachment mounting plate to move toward the packaging, causing the attachment to extend through the opening of the plate in the second direction, so that the attachment contacts and attaches to the packaging material.

[0025] Preferably, the spring of the attachment rod is compressed during the process of the attachment contacting and attaching to the packaging material.

[0026] Preferably, in the step of forming the gap, a third drive mechanism is activated, causing the attachment, together with the packaging material attached thereto, to move a certain distance away from the contents of the package along the second direction, thereby forming a gap between the packaging material and the contents of the package. Preferably, the attachment retracts through the opening of the plate.

[0027] Preferably, during the step of forming the gap, the spring of the attachment rod recovers from its compressed state.

[0028] Preferably, in the step of forming the cutting line, the blade and the upper edge of the plate form scissors, thereby facilitating the removal of the packaging material.

[0029] This disclosure achieves the following beneficial effects: by hooking the packaging material to prevent it from slipping out of the cutting range, and by having the packaging material rebound from the contact between the arc shape of the front end of the blade and the contents, the packaging material is kept close to the blade, thus completing the cutting action better; the blade tip is hidden and will not cut the contents of the packaging. Attached Figure Description

[0030] The accompanying drawings illustrate a preferred embodiment of the present invention, wherein:

[0031] Figure 1-3 Perspective views of the packaging material removal device according to this disclosure are shown from different angles;

[0032] Figure 4 A perspective view of the first drive mechanism is shown;

[0033] Figure 5 An exploded view of the blade assembly is shown;

[0034] Figure 6 The assembled cutting blade, blade holder, and blade base are shown.

[0035] Figure 7-8 Two perspective views of the assembled blade assembly are shown;

[0036] Figure 9 An exploded view of the support assembly is shown;

[0037] Figure 10 , Figure 11 This is a top view of the packaging material removal device according to the present disclosure, showing the process of forming a gap between the packaging material and the contents of the package; and

[0038] Figure 12 It is a three-dimensional image after the gap is formed. Detailed Implementation

[0039] The present application will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present application. However, it should be understood that the present application can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present application more complete and to fully illustrate the scope of protection of the present application to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0040] See Figures 1-3 The diagram shows a packaging material removal device 1 according to the present disclosure, used for cutting to remove the packaging material W wrapped around the outside of the packaging P (see...). Figures 10-12The packaging material removal device 1 includes: a first drive mechanism 2 defining a first direction along the length of the first drive mechanism 2 (e.g., the left-right direction of the packaging material removal device 1); a blade assembly 3 mounted on the first drive mechanism 2 and capable of moving along the first direction under the action of the first drive mechanism 2; a second drive mechanism 4 arranged near the first drive mechanism 2; a support assembly 5 mounted on the second drive mechanism 4 and capable of moving near the first drive mechanism 2 in a second direction perpendicular to the first direction (e.g., the front-back direction of the packaging material removal device 1) under the action of the second drive mechanism 4; and at least one attachment 6 mounted on the support assembly 5, which, when the support assembly 5 moves along the second direction under the action of the second drive mechanism 4, allows the attachment 6 to move closer to or further away from the packaging material P, and the attachment 6 can be attached to the packaging material W (see...). Figures 10-12 For example, the attachment is the suction cup 6 shown in the embodiment shown in the figure.

[0041] See Figures 5-8 The image shows the blade assembly 3 according to the present disclosure. The blade assembly 3 includes a cutting blade 35 and a blade holder 37, the cutting blade 35 being mounted in the blade holder 37, wherein the blade holder 37 includes a hook portion 371, and the cutting edge 351 of the cutting blade 35 is as follows... Figure 6 The blade 351 is located at the root of the hook portion 371 and within the outer end portion 3711 of the hook portion 371, meaning that the outer end portion 3711 encloses the blade 351 within the blade holder 37, preventing the blade 351 from being exposed. The blade 351 is preferably arranged at an angle. After the suction cup 6 adheres to the packaging material W, the second driving mechanism 4 moves the suction cup 6 away from the packaging P along the second direction, thereby creating a gap G between the packaging material W and the contents of the packaging P (see...). Figure 11 , 12 The hook portion 371 of the blade holder 37 can be inserted into the gap G, and the outer end portion 3711 of the hook portion 371 of the blade holder 37 is located between the contents of the package P and the blade 351 of the cutting blade 35. As the blade assembly 3 moves along the first direction under the action of the first driving member 2, the cutting blade 35 can cut the packaging material W so as to remove the packaging material W from the package P.

[0042] Preferably, such as Figure 6 As shown, the outer end portion 3711 of the hook portion 371 has an outwardly convex arc shape. When the hook portion 371 is inserted into the gap G, the outer end portion will abut against the contents of the package P.

[0043] Preferably, the tip of the hook 371 has a shape that facilitates insertion into the gap G.

[0044] Preferably, such as Figure 6 and Figure 11 As shown, the maximum width of the gap G is D1, and the maximum width D2 of the hook 371 is designed to be approximately equal to or slightly greater than the maximum width D1 of the gap G. Therefore, when the hook 371 is inserted into the gap G, the packaging material W can fit tightly against the blade and better complete the cutting action.

[0045] Preferably, the blade assembly 3 further includes a blade holder 36 for mounting the cutting blade 35, the blade holder 36 being mounted in the blade holder 37. Preferably, as... Figure 5 , Figure 6 As shown, the blade holder 36 is plate-shaped and is inserted into the slot 372 of the blade holder 37. The blade holder 37 includes at least one through hole 373. A screw passes through the through hole 373 to fix the blade holder 36 to the blade holder 37.

[0046] According to one embodiment of this disclosure, the blade assembly 3 further includes a first blade holder mount 31 and a second blade holder mount 32, wherein the first blade holder mount 31 and the second blade holder mount 32 are pivotally connected by a pivot 39, and the first blade holder mount 31 is fixed to the first drive mechanism 2. Furthermore, a spring 33 is disposed between the first blade holder mount 31 and the second blade holder mount 32 on one side of the pivot 39, and the blade holder 37 is mounted on the second blade holder mount 32 on the other side of the pivot 39. Therefore, when the hook portion 371 of the blade holder 37 is pressed by the contents of the package P, the blade holder 37 pushes the second blade holder mount 32 to compress the spring 33.

[0047] Preferably, the tool assembly 3 further includes a threaded set screw 34, which is threaded into a threaded hole 321 in the second tool holder mounting member 32 on the other side of the pivot 39. By adjusting the length of the set screw 34 extending from the threaded hole 321, the initial angle formed by the first tool holder mounting member 31 and the second tool holder mounting member 32 around the pivot 39 under the action of the spring 32 can be adjusted.

[0048] Preferably, the blade assembly 3 further includes an adjusting block 38, through which the blade holder 37 is mounted on the second blade holder mounting member 32. The adjusting block 38 includes at least one first mounting hole 381 and at least one second mounting hole 382. The first mounting hole 381 engages with at least one first elongated hole 374 on the blade holder 37 extending generally along the second direction, fixing the blade holder 37 to the adjusting block 38 with screws, and allowing adjustment of the position of the blade holder 37 in the second direction. The second mounting hole 382 engages with at least one elongated hole 322 on the second blade holder mounting member 32 extending generally along a third direction, the third direction (e.g., the vertical direction of the packaging material removal device 1) being perpendicular to the first and second directions, fixing the mounting hole to the second blade holder mounting member 32 with screws, and allowing adjustment of the position of the blade holder 37 fixed to the adjusting block 38 in the third direction. As those skilled in the art know, the positions of the first and second mounting holes and the first and second elongated holes can be interchanged; for example, the first mounting hole is located on the blade holder 37, and the first elongated hole is located on the adjusting block 38.

[0049] In one embodiment, the first drive mechanism 2 is composed of a rodless cylinder. See also Figure 4 The rodless cylinder includes: a frame 21, a slide rod 22 fixed on the frame 21, and a slide table 23 slidable on the slide rod 22, wherein the slide rod 22 extends along the first direction, and the knife assembly 3 is mounted on the slide table 23. The frame 21 can be fixed to a movable component (not shown) for overall movement of the packaging material removal device 1 according to this disclosure.

[0050] In one embodiment, the second drive mechanism 4 is composed of a cylinder. See also Figures 1-3 The second drive mechanism 4 is composed of a slide cylinder, which includes a fixed part 41 and a sliding part 42. The sliding part 42 is capable of sliding along the second direction, and the bracket assembly 5 is mounted on the sliding part 42. The fixed part 41 can be mounted on a movable part of the frame 21.

[0051] In one embodiment, the support assembly 5 includes a support member 51, which is fixed to the sliding portion 42 of the second drive mechanism 4. The attachment member 6 is fixedly installed on the support member 51. When the support member 51 moves along the second direction under the action of the second drive mechanism 4, the attachment member 6 can approach and attach to the packaging material W of the packaging P, and move away from the packaging P while attached to the packaging material W, thereby forming the gap G between the packaging material W and the contents.

[0052] Preferably, the support member 51 includes reinforcing ribs 511 for enhancing the strength of the support member 51; the support member 51 may also include at least one through hole 512 for reducing the weight of the support member 51, thereby facilitating its movement along the second direction.

[0053] Preferably, see Figure 9 The support assembly 5 further includes: a flat plate 53 for partially flattening the packaging material; at least one connecting rod 54, one end of which is connected to the support member 51 and the other end to the flat plate 53, the connecting rod 54 extending along the second direction; at least one attachment rod 52, the attachment 6 being mounted on one end of the attachment rod 52, the attachment rod 52 extending along the second direction; an attachment mounting plate 55, the other end of the attachment rod 52 being mounted on the attachment mounting plate 55; at least one bushing 56, the bushing 56 being mounted on the attachment mounting plate 55, the connecting rod 54 passing through the bushing 56, so that the attachment mounting plate 55 can slide along the connecting rod 54; and a third drive mechanism 57, which is mounted on the attachment mounting plate 55 for driving the attachment mounting plate 55 to move along the connecting rod 54 in the second direction.

[0054] When the support member 51 moves along the second direction under the action of the second driving mechanism 4, the flat plate 53 can abut against the packaging material W, thereby partially flattening the packaging material. Furthermore, the flat plate 53 includes at least one opening 531, which is aligned with the attachment member 6, allowing the attachment member 6 to extend or retract from the flat plate through the opening 531 along the second direction.

[0055] Preferably, the other end of the attachment rod 52 is mounted on the attachment mounting plate 55 by a spring (not shown), which is compressed when the suction cup 6 presses and adheres to the packaging material W.

[0056] Preferably, the size and position of the plate 53 are configured such that when the hook 371 of the blade holder 37 is inserted into the gap G between the packaging material W and the contents, and the blade assembly 3 moves along the first direction to cut the packaging material W, the lower surface of the blade holder 37 can abut against the upper edge of the plate 53, thereby forming a scissor-like structure between the blade 351 of the cutting blade 35 and the upper edge of the plate 53, thereby applying a shearing force to the packaging material W located in the hook 371, which is beneficial for cutting.

[0057] In one embodiment, the third drive mechanism 57 is composed of a cylinder.

[0058] In one embodiment, the attachment mounting plate 55 includes at least one mounting hole 551, and the other end of the attachment rod 52 is fixed in the mounting hole 551.

[0059] The following is for reference Figures 10-12 The process of cutting the packaging material W of the packaging P using the packaging material removal device 1 according to this disclosure is described.

[0060] First, the packaging material removal device 1 is positioned near the packaging P such that the first direction defined by the first drive mechanism 2 is parallel to the direction of the cutting line to be formed on the packaging material W, and the blade assembly 3 is positioned outside one end of the packaging material W so that it can be inserted into the gap G formed between the packaging material W and the contents of the packaging P, wherein the second drive mechanism 4 and the third drive mechanism 57 position the attachment 6 away from the packaging P. For example, it is necessary to... Figure 12 A horizontal cutting line is formed on the packaging material W of the package P arranged as shown, thereby removing the packaging material W, so that the first direction is arranged horizontally and the knife assembly 3 is aligned with one side of the packaging material W.

[0061] Then, the second drive mechanism 4 is activated, causing the support assembly 5 to move towards the packaging P along the second direction until the flat plate 53 abuts against the packaging material W, thereby partially flattening the packaging material W. The third drive mechanism 57 is activated, causing the attachment mounting plate 55 to move towards the packaging P, thus causing the attachment (e.g., a suction cup) 6 to extend through the opening 531 of the flat plate 53 along the second direction. The suction cup 6 contacts the packaging material W, and as the attachment mounting plate 55 moves further, the spring of the attachment mounting rod 52 is compressed until the suction cup 6 adheres to the packaging material W with a certain pressure. Figure 10 As shown.

[0062] Then, the second drive mechanism 4 is activated, causing the suction cup 6, along with the packaging material W adsorbed thereon, to move away from the contents of the packaging P along the second direction. The third drive mechanism 57 is then activated, causing the suction cup 6 to move away from the contents of the packaging P until a predetermined gap G is formed between the packaging material W and the contents of the packaging P. During this process, the spring of the attachment mounting rod 52 returns to its free length, and the suction cup 6 preferably retracts through the opening 531 of the flat plate 53. Figure 11 , Figure 12 As shown. In this step, the second drive mechanism 4 and the third drive mechanism 57 can be activated simultaneously.

[0063] In this state, the first drive device 2 is activated, causing the blade assembly 3 to move towards the packaging P along the first direction. Therefore, the hook 371 of the blade holder 37 inserts into the gap G. As the blade assembly 3 continues to move along the first direction, the blade 351 forms scissors with the upper edge of the plate 53, advantageously cutting the packaging material W until a through-cut line is formed on the packaging material W, thereby facilitating the removal of the packaging material W. When the hook 371 is inserted into the gap G, the blade holder 37 is pressed by the contents of the packaging P, thereby pushing the second blade holder mounting member 32 to compress the spring 33. Therefore, the hook 371 relative to... Figure 11 The position shown is slightly retracted inward and elastically abuts against the contents of the package P under the action of the spring 33.

[0064] As can be seen from the above description, the packaging material removal device 1 of this disclosure has the following advantages:

[0065] 1. The first, second, and third drive devices can be implemented using cylinders, resulting in a simple structure and low cost;

[0066] 2. The hook of the blade assembly can prevent the packaging material from slipping out of the cutting range by inserting into the gap between the packaging material and the contents. At the same time, the arc-shaped outer edge abuts against the contents of the packaging. Through the second blade holder mounting piece that can pivot elastically, the packaging material can be made to stick to the blade and complete the cutting action better. Therefore, it can effectively reduce the interruption of the unpacking process caused by the packaging material not being cut.

[0067] 3. The hook of the blade assembly conceals the blade, thus ensuring the contents of the package remain intact during the cutting process.

[0068] From the description provided based on the preferred embodiments, it will be apparent to those skilled in the art that modifications can be made without departing from the scope of the invention as defined by the following claims.

Claims

1. A packaging material removal device for cutting to remove packaging material wrapped around the outside of a package, the packaging material removal device comprising: A first drive mechanism, the first drive mechanism defining a first direction along its length; A blade assembly, which is mounted on the first drive mechanism and is capable of moving along the first direction under the action of the first drive mechanism; The second drive mechanism is arranged near the first drive mechanism; A support assembly, which is mounted on the second drive mechanism and is capable of moving near the first drive mechanism along a second direction perpendicular to the first direction under the action of the second drive mechanism; and At least one attachment mounted on the support assembly, when the support assembly moves in the second direction under the action of the second drive mechanism, enables the attachment to approach or move away from the packaging movement, and the attachment can be attached to the packaging material; The blade assembly includes a cutting blade and a blade holder. The cutting blade is mounted in the blade holder, which includes a hook. The cutting edge of the cutting blade is located at the root of the hook and inside the outer end of the hook. After the attachment is attached to the packaging material, the second drive mechanism moves the attachment away from the packaging along the second direction, thereby creating a gap between the packaging material and the contents of the packaging. The hook of the blade holder can be inserted into the gap, and the outer end of the hook of the blade holder is located between the contents of the packaging and the blade edge of the cutting blade. As the blade assembly moves along the first direction under the action of the first drive mechanism, the cutting blade can cut the packaging material. The characteristic feature is that the support assembly includes: A support member is mounted on the second drive mechanism and is able to move along the second direction under the action of the second drive mechanism; A flat plate is used to locally flatten the packaging material; At least one link, one end of which is connected to the support member and the other end of which is connected to the plate, the link extending along the second direction; At least one attachment rod, the attachment being mounted on one end of the attachment rod, the attachment rod extending along the second direction; An attachment mounting plate, wherein the other end of the attachment rod is mounted on the attachment mounting plate; At least one bushing is mounted on the attachment mounting plate, and the connecting rod passes through the bushing, so that the attachment mounting plate can slide along the connecting rod; and A third drive mechanism, mounted on the attachment mounting plate, is used to drive the attachment mounting plate to move along the connecting rod in the second direction. When the support member moves toward the packaging in the second direction under the action of the second drive mechanism, the plate can abut against the packaging material, thereby partially flattening the packaging material. The plate includes at least one opening aligned with the attachment member, allowing the attachment member to extend or retract from the plate through the opening in the second direction. The size and position of the plate are configured such that when the hook of the blade holder is inserted into the gap between the packaging material and the contents, and the blade assembly moves along the first direction to cut the packaging material, the lower surface of the blade holder can abut against the upper edge of the plate, thereby forming scissors between the blade of the cutting blade and the upper edge of the plate, thereby applying a shearing force to the packaging material located in the hook.

2. The packaging material removal device according to claim 1, characterized in that, The outer end of the hook has a convex curved shape, and when the hook is inserted into the gap, the outer end will abut against the contents of the package.

3. The packaging material removal device according to claim 1 or 2, characterized in that, The maximum width of the gap is D1, and the maximum width of the hook is designed to be equal to or slightly greater than the maximum width of the gap, D1.

4. The packaging material removal device according to claim 1, characterized in that, The tip of the hook has a shape that facilitates insertion into the gap.

5. The packaging material removal device according to claim 1, characterized in that, The cutting edge is arranged at an angle in the tool holder.

6. The packaging material removal device according to claim 1, characterized in that, The knife assembly includes a first knife holder mount and a second knife holder mount, wherein the first knife holder mount and the second knife holder mount are pivotally connected by a pivot. The first knife holder mount is fixed to the first drive mechanism, and a spring is disposed between the first knife holder mount and the second knife holder mount on one side of the pivot. The knife holder is mounted on the second knife holder mount on the other side of the pivot. Therefore, when the hook of the knife holder is pressed by the contents of the package, the knife holder pushes the second knife holder mount to compress the spring.

7. The packaging material removal device according to claim 6, characterized in that, The tool assembly also includes a threaded set screw, which is threaded into a threaded hole in the second tool holder mounting on the other side of the pivot. By adjusting the length of the set screw extending from the threaded hole, the initial angle formed by the first and second tool holder mountings around the pivot under the action of the spring can be adjusted.

8. The packaging material removal device according to claim 6 or 7, characterized in that, The tool assembly further includes an adjusting block, through which the tool holder is mounted on the second tool holder mounting member. The adjusting block includes at least one first mounting hole and at least one second mounting hole, wherein the first mounting hole engages with at least one first elongated hole extending along the second direction on the tool holder, and the tool holder is detachably fixed to the adjusting block, thus allowing adjustment of the position of the tool holder in the second direction; the second mounting hole engages with at least one elongated hole extending along a third direction on the second tool holder mounting member, the third direction being perpendicular to the first and second directions, and the adjusting block is detachably fixed to the second tool holder mounting member, thus allowing adjustment of the position of the tool holder fixed to the adjusting block in the third direction.

9. The packaging material removal device according to claim 1, characterized in that, The blade assembly also includes a blade holder for mounting the cutting blade, the blade holder being installed in the blade holder.

10. The packaging material removal device according to claim 9, characterized in that, The blade holder is plate-shaped, inserted into the slot of the blade holder, and fixed to the blade holder by screws.

11. The packaging material removal device according to claim 1, characterized in that, The first drive mechanism is composed of a rodless cylinder, which includes: a frame, a slide rod fixed on the frame, and a slide table that can slide on the slide rod, wherein the slide rod extends along the first direction and the blade assembly is mounted on the slide table.

12. The packaging material removal device according to claim 1, characterized in that, The second drive mechanism is composed of a cylinder.

13. The packaging material removal device according to claim 12, characterized in that, The second drive mechanism is composed of a slide cylinder, which includes a fixed part and a sliding part. The sliding part is capable of sliding along the second direction, and the bracket assembly is mounted on the sliding part.

14. The packaging material removal device according to claim 1, characterized in that, The bracket assembly includes a support member, and the attachment member is mounted on the support member.

15. The packaging material removal device according to claim 14, characterized in that, The support member includes reinforcing ribs and / or at least one through hole.

16. The packaging material removal device according to claim 1, characterized in that, The other end of the attachment rod is mounted on the attachment mounting plate by a spring.

17. The packaging material removal device according to claim 1, characterized in that, The third drive mechanism is composed of a cylinder.

18. The packaging material removal device according to claim 1, characterized in that, The attachment mounting plate includes at least one mounting hole, and the other end of the attachment rod is fixed in the mounting hole.

19. The packaging material removal device according to claim 1, characterized in that, The attachment is a suction cup.

20. A method for cutting packaging material using the packaging material removal device according to claim 1, characterized in that, The method includes the following steps: The packaging material removal device is positioned near the packaging such that a first direction defined by the first drive mechanism is parallel to the direction of the cutting line to be formed on the packaging material, and the blade assembly is located outside one end of the packaging material, wherein the attachment is positioned away from the packaging. The second drive mechanism is activated, causing the support assembly to move toward the packaging along the second direction until the attachment contacts and attaches to the packaging material. The second drive mechanism is activated again, causing the attachment, along with the packaging material attached thereto, to move a certain distance away from the packaging along the second direction, thereby creating a predetermined gap between the packaging material and the contents of the packaging. The first drive mechanism is activated, causing the blade assembly to move toward the packaging along the first direction, so that the hook of the blade holder is inserted into the gap. As the blade assembly continues to move along the first direction, the cutting blade of the blade assembly cuts the packaging material until a through-cut line is formed on the packaging material.

21. The method according to claim 20, characterized in that, During the step of the support assembly moving toward the packaging in the second direction, the plate abuts against the packaging material; the third drive mechanism is activated, causing the attachment mounting plate to move toward the packaging, causing the attachment to extend through the opening of the plate in the second direction, so that the attachment contacts and attaches to the packaging material.

22. The method according to claim 21, characterized in that, During the process of the attachment contacting and attaching to the packaging material, the spring of the attachment rod is compressed.

23. The method according to claim 21 or 22, characterized in that, In the step of forming the gap, the third drive mechanism is activated again, causing the attachment and the packaging material attached thereto to move a certain distance away from the contents of the package along the second direction, thereby forming a gap between the packaging material and the contents of the package.

24. The method according to claim 23, characterized in that, The attachment retracts through the opening in the plate.

25. The method according to claim 23, characterized in that, During the step of forming the gap, the spring of the attachment rod returns to its compressed state.

26. The method according to claim 20, characterized in that, In the step of forming the cutting line, the blade forms scissors with the upper edge of the plate.

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