Bag cutting mechanism and automatic bale breaker

Abstract

The utility model relates to the technical field of unpacking, in particular to a bag cutting mechanism and an automatic unpacking machine. The bag cutting mechanism comprises a shell, a first driver, a hob, an auxiliary wheel, a first connecting shaft and an elastic piece. The first driver is connected with the hob and used for driving the hob to rotate; the auxiliary wheel is rotationally installed on the shell, and the hob is in rolling fit with the auxiliary wheel and used for cutting a packaging bag for packaging materials. The hob is coaxially and fixedly connected with the first connecting shaft, an arc-shaped groove is formed in the shell, and the first connecting shaft is in sliding fit with the arc-shaped groove; an elastic piece is connected between the shell and the first connecting shaft, and elastic force applied to the first connecting shaft by the elastic piece faces the direction where the auxiliary wheel is located. The automatic bale breaker comprises the bag cutting mechanism. According to the bag cutting mechanism and the automatic bale breaker, packaging bags can be smoothly cut, the cutting effect is good, materials can be easily and rapidly pushed out from notches of the packaging bags, the workload can be reduced, and efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bagging technical field, specifically, relate to a cut bag mechanism and automatic unpacking machine. BACKGROUND

[0002] With the continuous development of medical technology and the growing demand for medical services, the automation and intelligentization of medical equipment have become an important means to improve the quality and efficiency of medical services.

[0003] In the medical process, the demand for cotton swabs as common medical supplies is huge, however, the traditional cotton swab unpacking method needs to be manually performed by medical staff, which not only has a large workload, but also is low in efficiency. INVENTION CONTENTS

[0004] The utility model aims at providing a cut bag mechanism and automatic unpacking machine to alleviate the technical problems of large workload and low efficiency in the prior art cotton swab unpacking method.

[0005] The cut bag mechanism provided by the utility model comprises a shell, a first driver, a hob, an auxiliary wheel, a first connecting shaft and an elastic piece.

[0006] The first driver is connected with the hob and is used to drive the hob to rotate, the auxiliary wheel is rotatably installed on the shell, the hob is in rolling cooperation with the auxiliary wheel, and the hob is used to cut a packaging bag in which materials are packaged.

[0007] The hob is coaxially fixed to the first connecting shaft, the shell is provided with an arc-shaped groove, the first connecting shaft is in sliding cooperation with the arc-shaped groove, and the elastic piece is connected between the shell and the first connecting shaft.

[0008] Preferably, as an implementable mode, the wheel surface of the auxiliary wheel is provided with an annular groove, and the cutting edge of the hob is in cooperation with the annular groove.

[0009] Preferably, as an implementable mode, the cross section of the annular groove is V-shaped.

[0010] Preferably, as an implementable mode, the cut bag mechanism further comprises a gear set, the gear set comprises a driving gear and a first driven gear, the first driver is connected with the driving gear and is used to drive the driving gear to rotate, and the first driven gear is coaxially fixed to the first connecting shaft.

[0011] Preferably, as an implementable mode, the cut bag mechanism further comprises an adjusting piece, and the first connecting shaft is in rotary cooperation with one part of the adjusting piece.

[0012] The gear set further comprises a second driven gear engaged with the second driven gear, and the second driven gear is rotationally matched with another part of the adjusting member; or, the first driven gear is engaged with the driving gear, and the driving gear is rotationally matched with another part of the adjusting member.

[0013] The utility model also provides an automatic unpacking machine, it includes push out mechanism and above-mentioned cut bag mechanism.

[0014] The push out mechanism comprises a second driver, a lead screw, a nut and a guide rail, the length direction of the lead screw and the guide direction of the guide rail are parallel to the conveying direction of the packaging bag, the second driver is connected with the lead screw and is used to drive the rotation of the lead screw, the lead screw is matched with the nut, the guide rail is slidingly connected with the nut, and the nut is fixedly provided with a push block for pushing out the cutout of the material.

[0015] Preferably, as an implementable mode, the automatic unpacking machine further comprises a first detection element, the first detection element and the second driver are both in communication connection with a controller, the controller is used to control the second driver to drive the push out mechanism to push out the material from the cutout of the packaging bag when the first detection element detects that the first detection position has material passing through, and the first detection position is located between the cut bag mechanism and the push out mechanism.

[0016] And / or, the automatic unpacking machine further comprises a second detection element and a third detection element, the push block can push out the material from the cutout of the packaging bag when moving from an initial position to an end position, the second detection element, the third detection element and the second driver are all in communication connection with a controller, the controller is used to control the second driver to stop and reverse start when the second detection element detects that the push block reaches the end position, and the controller is used to control the second driver to stop when the third detection element detects that the push block reaches the initial position.

[0017] Preferably, as an implementable mode, the push out mechanism further comprises a guide structure, and the guide structure is used to guide the pushed-out material to an outlet.

[0018] Preferably, as an implementable mode, the automatic unpacking machine further comprises two limit elements, the limit elements are movably connected with the shell of the automatic unpacking machine, can be fixed at multiple positions of the shell along the width direction of the conveying channel of the packaging bag, and are used to limit and adjust the width of the conveying channel.

[0019] Preferably, as an implementable mode, the shell is provided with a slide and two sets of clamping groove groups, the slide is guided in the same direction as the width direction of the conveying channel, and the limiting piece is in sliding fit with the slide; the two sets of clamping groove groups correspond to the two limiting pieces one by one, each set of clamping groove groups comprises a plurality of clamping grooves arranged along the width direction of the conveying channel, and the limiting piece is provided with a clamping hook capable of elastically clamping any clamping groove in the corresponding clamping groove group.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] During work, the packaging bag can pass through the gap between the auxiliary wheel and the hob, and the hob can be rotated to cut the packaging bag in cooperation with the auxiliary wheel. It should be noted that the hob and the auxiliary wheel are combined to cut the packaging bag, and the auxiliary wheel can provide support force for the packaging bag to achieve smooth cutting of the packaging bag. When it is necessary to take out the remaining material in the machine, the first connecting shaft can be moved along the arc-shaped groove to adjust the position of the hob, so that the distance between the hob and the auxiliary wheel can be adjusted. Increasing the distance can smoothly take out the remaining material in the machine. Under the action of the elastic force of the elastic member, the hob mounted on the first connecting shaft can be pressed on the auxiliary wheel to smoothly cut the packaging bag. The elastic member can also increase the pressure of the hob on the packaging bag to improve the cutting effect.

[0022] Therefore, the bag cutting mechanism can smoothly cut the packaging bag, and the cutting effect is better. The bag cutting mechanism forms a cut on the packaging bag, which can greatly reduce the resistance of the packaging bag when the material is pushed out, so that the material can be easily and quickly pushed out of the cut of the packaging bag, which is beneficial to reduce the workload and improve the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0024] Figure 1 The structure diagram and the local enlarged view of the bag cutting mechanism provided by the embodiments of the present application are shown in the drawings.

[0025] Figure 2 The assembly structure diagram of the bag cutting mechanism and the conveying mechanism provided by the embodiments of the present application is shown in the drawings.

[0026] Figure 3The assembly structure schematic view of the limiting piece and part of the shell in the bag cutting mechanism provided by the utility model;

[0027] Figure 4 The three-dimensional view of the main structure of the automatic bale breaker provided by the utility model;

[0028] Figure 5 The top view of the main structure of the automatic bale breaker provided by the utility model;

[0029] Figure 6 The structure schematic view of the pushing-out mechanism in the automatic bale breaker provided by the utility model;

[0030] Figure 7 The structure schematic view of the automatic bale breaker provided by the utility model.

[0031] Explanation of reference signs:

[0032] 100 - conveying mechanism; 110 - driving wheel; 120 - driven wheel; 130 - second connecting shaft; 140 - third connecting shaft; 150 - swing piece; 160 - first roller pair; 170 - second roller pair; 180 - third roller pair; 190 - pulling piece;

[0033] 200 - bag cutting mechanism; 210 - hob; 220 - auxiliary wheel; 230 - first connecting shaft; 240 - spring; 250 - adjusting piece;

[0034] 300 - pushing-out mechanism; 310 - push block; 320 - lead screw; 330 - nut; 340 - guide rail; 350 - guide groove;

[0035] 410 - first driver; 420 - second driver;

[0036] 510 - micro switch; 520 - proximity switch; 530 - first photoelectric switch; 540 - second photoelectric switch; 550 - third photoelectric switch;

[0037] 600 - shell; 610 - arc-shaped groove; 620 - discharge opening; 630 - input opening; 640 - clamping groove set;

[0038] 710 - driving gear; 720 - first driven gear; 730 - second driven gear;

[0039] 800 - limiting piece;

[0040] 900 - flip cover. DETAILED DESCRIPTION

[0041] The technical solutions of the utility model will be described clearly and completely in connection with the drawings below. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0042] The utility model will be described in further detail below by specific examples and in connection with the drawings.

[0043] Referring to Figures 1-3 The embodiment provides a bag cutting mechanism, which comprises a shell 600, a first driver 410, a hob 210, an auxiliary wheel 220, a first connecting shaft 230 and an elastic member; the first driver 410 is connected with the hob 210 and is used for driving the hob 210 to rotate; the auxiliary wheel 220 is rotatably installed on the shell 600, the hob 210 is in rolling cooperation with the auxiliary wheel 220 and is used for cutting a packaging bag containing materials; the hob 210 is coaxially fixedly connected with the first connecting shaft 230, the shell 600 is provided with an arc-shaped groove 610, and the first connecting shaft 230 is in sliding cooperation with the arc-shaped groove 610; the elastic member is connected between the shell 600 and the first connecting shaft 230, and the elastic force of the elastic member applied to the first connecting shaft 230 is directed to the direction where the auxiliary wheel 220 is located. Wherein, the elastic member can be a spring 240. Wherein, the materials can be cotton swabs.

[0044] When working, the packaging bag can pass through the gap between the auxiliary wheel 220 and the hob 210, and the hob 210 can cooperate with the auxiliary wheel 220 to cut the packaging bag when rotating. It should be noted that the combination structure of the hob 210 and the auxiliary wheel 220 is used to cut the packaging bag, the auxiliary wheel 220 can be used to provide support force for the packaging bag to realize smooth cutting of the packaging bag. When the remaining materials in the machine need to be taken out, the elastic force of the elastic member can be overcome, and the first connecting shaft 230 can be moved along the arc-shaped groove 610 to adjust the position of the hob 210, so that the distance between the hob 210 and the auxiliary wheel 220 can be adjusted, and the distance is increased, so that the remaining materials in the machine can be smoothly taken out. Under the action of the elastic force of the elastic member without external force, the hob 210 installed on the first connecting shaft 230 can be pressed on the auxiliary wheel 220 to smoothly cut the packaging bag, and the elastic member can also increase the pressure of the hob 210 on the packaging bag to improve the cutting effect.

[0045] Therefore, the bag cutting mechanism 200 provided by the embodiment can realize smooth cutting of the packaging bag, and the cutting effect is better. The bag cutting mechanism 200 forms a cut on the packaging bag, which can greatly reduce the resistance of the packaging bag when the materials are pushed out, so that the materials can be easily and quickly pushed out from the cut of the packaging bag, which is beneficial to reduce the workload and improve the efficiency.

[0046] Preferably, an annular groove is arranged on the wheel surface of the auxiliary wheel 220, and the cutting edge of the hob 210 is matched with the annular groove, so that the auxiliary wheel 220 can provide stable supporting force for the packaging bag and ensure smooth cutting process.

[0047] Further, the cross-sectional shape of the annular groove can be V-shaped, which can improve the supporting effect of the auxiliary wheel 220 on the packaging bag, thereby optimizing the cutting effect.

[0048] The gear set can be used as the transmission assembly, the driving gear 710 and the first driven gear 720 can be arranged in the gear set, the first driver 410 is connected with the driving gear 710, so that the driving gear 710 is driven to rotate by the first driver 410, and the rotation of the driving gear 710 can drive each first driven gear 720 to rotate. The first driven gear 720 is coaxially fixed with the first connecting shaft 230, so that when the driving gear 710 is driven to rotate by the first driver 410, the driving gear 710 can drive the first driven gear 720 to synchronously rotate, and then the first driven gear 720 can drive the hob 210 to rotate through the first connecting shaft 230, so as to realize the cutting operation on the packaging bag. Specifically, the size of the first driven gear 720 can be adjusted according to the required rotating speed of the hob 210.

[0049] Further, the adjusting member 250 can also be arranged, and the first connecting shaft 230 is rotationally matched with one part of the adjusting member 250. If a second driven gear 730 is arranged in the gear set and is engaged with the first driven gear 720, the second driven gear 730 can be rotationally matched with another part of the adjusting member 250; if the driving gear 710 is directly engaged with the second driven gear 730, the driving gear 710 can be rotationally matched with another part of the adjusting member 250. When it is necessary to adjust the distance between the hob 210 and the auxiliary wheel 220, the adjusting member 250 can be pulled to swing around the axis of the corresponding second driven gear 730 or the axis of the driving gear 710, so that the first connecting shaft 230 slides along the arc-shaped groove 610, and at the same time, the first driven gear 720 can roll along the second driven gear 730 or the driving gear 710 engaged with the first driven gear 720. Under the support of the second driven gear 730 or the driving gear 710, the first driven gear 720 can stably roll, so that the structural stability of the hob 210 can be ensured during the adjustment of the position of the hob 210, and after the adjusting member 250 is released, the hob 210 can automatically return to the cutting position.

[0050] Referring to Figures 4-7The embodiment also provides an automatic unpacking machine, which comprises the pushing mechanism 300 and the bag cutting mechanism 200; the pushing mechanism 300 comprises a second driver 420, a lead screw 320, a nut 330 and a guide rail 340, the length direction of the lead screw 320 and the guide direction of the guide rail 340 are parallel to the conveying direction of the packaging bag, the second driver 420 is connected with the lead screw 320 and is used to drive the lead screw 320 to rotate; the lead screw 320 is matched with the nut 330, the guide rail 340 is slidingly connected with the nut 330, and the nut 330 is fixedly provided with a pushing block 310 used for pushing the material out of the cut of the packaging bag. The second driver 420 can be a second motor.

[0051] The automatic unpacking machine provided by the embodiment has all the advantages of the bag cutting mechanism and can realize smooth cutting of the packaging bag and has a better cutting effect. In addition, after the cutting of the packaging bag is completed, the second driver 420 of the pushing mechanism 300 is started, the lead screw 320 is driven to rotate by the second driver 420, the nut 330 is driven to move along the guide rail 340 by the rotation of the lead screw 320, and thus the pushing block 310 can push the material out, so that the pushing mechanism 300 can quickly push the cut material out of the packaging bag, which is beneficial to reduce the workload, improve the efficiency and be more sanitary.

[0052] It should be noted that the bag cutting mechanism 200 can reduce the force received by the packaging bag when the material is pushed out, thereby reducing the deformation amount of the packaging bag, and further reducing the risk that the material cannot be smoothly pushed out due to excessive deformation of the packaging bag, and improving the stability and reliability of the equipment operation.

[0053] Further, a first detection element can be arranged to detect whether the first detection position has material passing through, wherein the first detection position is located between the bag cutting mechanism 200 and the pushing mechanism 300; the first detection element and the second driver 420 are both in communication connection with the controller, when the first detection element detects that the first detection position has material passing through, it indicates that the packaging bag has been cut, at this time, the controller can control the second driver 420 to drive the pushing mechanism 300 to act according to the corresponding signal sent by the first detection element, so as to push the material in the corresponding position out of the cut of the packaging bag by the pushing mechanism 300, realizing automatic control of the second driver 420 and improving the intelligence. Preferably, the first detection position is arranged close to the pushing mechanism 300, so that the material reaches the corresponding position of the pushing mechanism 300 after passing through the first detection position, improving the working efficiency of the pushing mechanism 300.

[0054] Further, in the specific structure of the automatic unpacking machine provided in the embodiment, a second detection element and a third detection element can also be arranged, and the pushing mechanism 300 has a pushing block 310 for pushing the material, which is capable of pushing the material out of the cut of the packaging bag when moving from an initial position to an end position; wherein the second detection element is capable of detecting whether the pushing block 310 reaches the end position, and the third detection element is capable of detecting whether the pushing block 310 reaches the initial position. The second detection element, the third detection element and the second driver 420 are all in communication connection with the controller, when the second detection element detects that the pushing block 310 reaches the end position, it indicates that the material has been pushed to the right position, at this time, the controller can control the second driver 420 to stop and reverse start according to the signal sent by the second detection element, and use the second driver 420 to drive the pushing block 310 of the pushing mechanism 300 to move reversely towards the initial position; when the third detection element detects that the pushing block 310 reaches the initial position, it indicates that the pushing mechanism 300 has been reset, at this time, the controller can control the second driver 420 to stop according to the signal sent by the third detection element, so that the pushing mechanism 300 remains in the current state, in order to facilitate the pushing of the next material. Specifically, the second detection element can be a proximity switch 520, and the third detection element can be a first photoelectric switch 530.

[0055] In the specific structure of the pushing mechanism 300, a guide structure can also be arranged, so as to guide the pushed material to the discharge port 620 by using the guide structure, which is beneficial to the smooth discharge of the material. Wherein, the guide structure can be a guide groove 350.

[0056] In addition, in the specific structure of the automatic unpacking machine, two limiting members 800 can also be arranged, and the limiting members 800 are movably connected with the shell 600, and the limiting members 800 are capable of being fixed to a plurality of positions of the shell 600 along the width direction of the conveying channel of the packaging bag, so as to limit and adjust the width of the conveying channel by using the two limiting members 800, wherein the conveying channel is used for the material to pass through, so that the width of the conveying channel can be adjusted by adjusting the position of the limiting member 800, so as to adapt to materials of different sizes, and the compatibility is stronger. In fact, the width direction of the conveying channel is consistent with the length direction of the material, and the materials of different lengths can be adapted by adjusting the distance between the two limiting members 800.

[0057] Specifically, the slide and two groups of clamping groove sets 640 can be arranged on the shell 600, the guide of the slide is arranged to be consistent with the width direction of the conveying channel, the limiting piece 800 is in sliding fit with the slide, so that the limiting piece 800 can slide along the slide; the two groups of clamping groove sets 640 are arranged in one-to-one correspondence with the two limiting pieces 800, a plurality of clamping grooves arranged along the width direction of the conveying channel are arranged in each group of clamping groove sets 640, a clamping hook is arranged on the limiting piece 800, and the clamping hook is arranged to be elastically clamped with any clamping groove in the corresponding clamping groove set 640. In this way, when the limiting piece 800 is pulled along the slide, the clamping hook on the limiting piece 800 can slide into another clamping groove from one clamping groove in the corresponding clamping groove set 640, and after the limiting piece 800 is moved into position, the clamping hook on the limiting piece 800 can cooperate with a certain clamping groove in the corresponding clamping groove set 640. The clamping groove can realize positioning of the limiting piece 800, and adjustment is convenient. Wherein, the limiting piece can be made of a material with certain toughness, so that the clamping hook has certain elasticity, and the clamping hook is convenient to move between the clamping grooves in the clamping groove set 640.

[0058] The conveying mechanism 100 can share the first driver 410 with the bag cutting mechanism 200. In use, the packaging bag containing the material is placed at the input port of the conveying mechanism 100, and the first driver 410 is controlled to start working to drive the conveying mechanism 100 and the bag cutting mechanism 200 to operate synchronously. The conveying mechanism 100 can convey the packaging bag containing the material in the conveying direction. Under the conveying of the conveying mechanism 100, the packaging bag containing the material will pass through the bag cutting mechanism 200 and the pushing-out mechanism 300 in turn, so that the cutting and pushing-out operations can be realized in turn, and the automatic unpacking of the material is realized. It should be noted that the conveying mechanism 100 and the bag cutting mechanism 200 are connected with the first driver 410, so that the conveying mechanism 100 and the bag cutting mechanism 200 can operate synchronously, and thus the bag cutting mechanism 200 can complete the cutting of one packaging bag every time the conveying mechanism 100 conveys one packaging bag containing the material to the bag cutting mechanism 200. Therefore, the conveying and cutting requirements can be realized, and the number of drivers can be reduced, the cost can be reduced, and the control logic can be simplified.

[0059] Wherein, the packaging bag contains the material.

[0060] Specifically, the shell 600 is provided with an input port 630, an output port and a discharge port 620. The input port 630 is opposite to the input end of the conveying mechanism 100 and is used for putting in the material. The output port is opposite to the output end of the conveying mechanism 100 and is used for outputting the waste empty bag. The discharge port 620 is opposite to the pushing-out mechanism 300 and is used for outputting the material pushed out from the packaging bag.

[0061] The automatic unpacking machine can further be provided with a controller.

[0062] Further, a fourth detection element and an alarm can be provided to detect whether the second detection position has material by using the fourth detection element, wherein the second detection position corresponds to the bag cutting mechanism 200; the second detection element and the alarm are both in communication connection with the controller, when the second detection element detects that the second detection position has no material, it indicates that the material has been exhausted, at this time, the controller can control the alarm to alarm according to the corresponding signal sent by the second detection element, so as to remind the user to replenish the material in time. Specifically, the second detection element can be a second photoelectric switch 540; the alarm can be a buzzer.

[0063] Further, the automatic unpacking machine provided in the embodiment can further be provided with a fifth detection element to detect whether the discharge port 620 has material; wherein the discharge port 620 is the material pushing-out side of the pushing-out mechanism 300, and the material will be extended out of the discharge port 620 after being pushed out. The fifth detection element and the first driver 410 are both in communication connection with the controller, when the fifth detection element detects that the discharge port 620 has material, it indicates that the unpacked material has not been taken away, at this time, the controller can control the first driver 410 to stop according to the corresponding signal sent by the fifth detection element, so that the conveying mechanism 100 no longer continues to convey the material, and at the same time, the bag cutting mechanism 200 no longer cuts the packaging bag; when the fifth detection element detects that the discharge port 620 has no material, it indicates that the material has been taken away or has not been conveyed to the discharge port 620, at this time, the controller can control the first driver 410 to start according to the corresponding signal sent by the fifth detection element, so that the conveying mechanism 100 continues to convey the material, and at the same time, the bag cutting mechanism 200 continues to cut the packaging bag. The fifth detection element can be a third photoelectric switch 550.

[0064] In the specific structure of the conveying mechanism 100, a plurality of roller sets can be provided at intervals along the conveying direction, and each roller set can include a plurality of pairs of driving wheels 110 and driven wheels 120 that rollingly cooperate with each other, and the gap between the driving wheels 110 and the driven wheels 120 can allow the material packaged in the packaging bag to pass through; the driving wheels 110 in the same roller set are coaxially arranged, and the first driver 410 is connected to each driving wheel 110 through a transmission assembly, so that the first driver 410 can drive each driving wheel 110 to rotate synchronously through the transmission assembly, and the rotation of the driving wheels 110 can convey the material forward, and the presence of the driven wheels 120 can prevent the packaging bag from slipping, thereby improving the conveying reliability.

[0065] For long strip material, the conveying direction of the conveying mechanism 100 is set perpendicular to the length direction of the material, which is beneficial to improve the conveying efficiency of the material, and can improve the structural compactness, and the volume is small, which can be set as a small desktop structure, to ensure that the machine is small and light, and does not occupy too much space, and is convenient to use in a medical environment. Especially suitable for conveying a plurality of materials packaged in packaging bags connected together, without the need to separate the materials. The overall size can be 300mmx220mmx120mm (lengthxwidthxheight), and under this size, a plurality of specifications of materials with a length in the range of 100mm to 200mm can be processed.

[0066] In the specific structure of the conveying mechanism 100, the second connecting shaft 130 and the third connecting shaft 140 are provided, the driven wheel 120 is arranged above the corresponding driving wheel 110 to be supported by the driving wheel 110; the driven wheel 120 on the incoming side of the pushing mechanism 300 is installed on the third connecting shaft 140, the second connecting shaft 130 is installed on the housing 600, and the third connecting shaft 140 is connected to the second connecting shaft 130 through the swing piece 150, wherein the second connecting shaft 130 is rotationally connected with the swing piece 150, and the second connecting shaft 130 and the third connecting shaft 140 are parallel to the axis of the driving wheel 110. In this way, when the material in the packaging bag moves to between the driven wheel 120 and the driving wheel 110, the driven wheel 120 can be lifted to increase the gap between the driving wheel 110 and the driven wheel 120, so that the material can pass through the gap between the driving wheel 110 and the driven wheel 120; and after the material in the packaging bag passes, the driven wheel 120 can fall back to smoothly press the flat packaging bag, ensuring the conveying effect.

[0067] A torsional spring can also be provided between the second connecting shaft 130 and the third connecting shaft 140, which can lift the driven wheel 120 when the material in the packaging bag moves to between the driven wheel 120 and the driving wheel 110, and the torsional spring can adaptively deform to adapt to the swing of the third connecting shaft 140; and after the material in the packaging bag passes, the torsional spring can drive the driven wheel 120 to reset, which can increase the force between the driven wheel 120 and the driving wheel 110, and improve the conveying stability.

[0068] The above-mentioned roller pair can include a first roller pair 160 located between the bag cutting mechanism 200 and the pushing-out mechanism 300; a micro switch 510 can be installed on the shell 600, which can be triggered when the driven wheel 120 in the first roller pair 160 is lifted by the material; the micro switch 510 and the second driver 420 are both in communication connection with the controller, and when the micro switch 510 is triggered, the controller can control the second driver 420 to drive the pushing-out mechanism 300 to push the material out of the cut of the packaging bag, realizing the automatic opening of the second driver 420 and improving the intelligence. The micro switch 510 can also serve as the above-mentioned first detection element.

[0069] The above-mentioned micro switch 510, first photoelectric switch 530, second photoelectric switch 540, third photoelectric switch 550 and proximity switch 520 can all be installed on the shell 600.

[0070] The above-mentioned roller pair further includes a second roller pair 170 and a third roller pair 180, and the second roller pair 170, the bag cutting mechanism 200, the first roller pair 160, the pushing-out mechanism 300 and the third roller pair 180 are arranged in sequence along the conveying direction, so that the second roller pair 170 and the first roller pair 160 can tighten the packaging bag between them, so that the packaging bag corresponding to the bag cutting mechanism 200 will be in a taut state, which is conducive to the cutting of the bag cutting mechanism 200; Similarly, the first roller pair 160 and the third roller pair 180 can tighten the packaging bag between them, so that the packaging bag corresponding to the pushing-out mechanism 300 will be in a taut state, which is conducive to the smooth pushing of the material in the packaging bag by the pushing-out mechanism 300.

[0071] A plurality of second driven gears 730 can be provided in the gear set, and the rotation of the driving gear 710 can drive each second driven gear 730 to rotate; the second driven gear 730 is provided in one-to-one correspondence with the roller pair, and the second driven gear 730 is coaxially fixed with the driving wheel 110 in the corresponding roller pair, so that the driving wheel 110 in each roller pair can be driven to rotate by the corresponding second driven gear 730, realizing the driving of the conveying mechanism 100. Specifically, the size of the second driven gear 730 can be adjusted according to the required linear speed of each group of roller pairs, so as to ensure the stability and accuracy of the material in the conveying process.

[0072] A flip cover 900 can be provided at the input port 630 of the shell 600, and the second roller pair 170 is located below the flip cover 900; the flip cover 900 is rotationally connected with the shell 600, and the flip cover 900 is connected with the third connecting shaft 140 in the second roller pair 170 through a pulling member 190, which allows the third connecting shaft 140 to swing up and down relative to the flip cover 900, and can also drive the third connecting shaft 140 to lift up when the flip cover 900 is opened, so as to facilitate the placement of the material.

[0073] The automatic unpacking machine provided by the embodiment can place multiple materials wrapped in packaging bags at one time, and can automatically peel out single materials, so that the user only needs to take away the materials, and the machine can automatically remove the waste empty bags and prepare for the next operation.

[0074] Before the machine is operated, the operator arranges a row of materials independently wrapped in packaging bags in the input port of the conveying mechanism 100, turns on the power supply, presses the start button, and the machine starts to work automatically; the conveying mechanism 100 in the machine will convey the materials one by one to the bag cutting mechanism 200, and after cutting, continue to convey to the pushing mechanism 300; the pushing mechanism 300 will push the single material to the discharge port 620, and wait for the worker to take it. The machine is equipped with an automatic sensing system (the third detection element), which can detect the discharge state of the material in real time, and will immediately prepare to push the next material as soon as the material is taken away. In addition, the machine also has a stock detection function (the second detection element), when the internal material is exhausted, the buzzer will give a prompt sound, reminding the operator to replenish the material in time.

[0075] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bag cutting mechanism characterized by, It includes a housing, a first driver, a hob, an auxiliary wheel, a first connecting shaft, and an elastic element; The first driver is connected to the roller cutter and is used to drive the roller cutter to rotate; the auxiliary wheel is rotatably mounted on the housing, and the roller cutter and the auxiliary wheel are in rolling cooperation for cutting packaging bags containing materials; The hob is coaxially fixed to the first connecting shaft, the housing has an arc-shaped groove, and the first connecting shaft slides into the arc-shaped groove; an elastic element is connected between the housing and the first connecting shaft, and the elastic force applied by the elastic element to the first connecting shaft is directed towards the auxiliary wheel.

2. The bag cutting mechanism of claim 1, wherein, The auxiliary wheel has an annular groove on its surface, and the cutting edge of the hob engages with the annular groove.

3. The bag cutting mechanism of claim 2, wherein, The cross-section of the annular groove is V-shaped.

4. The bag cutting mechanism according to any one of claims 1 to 3, wherein The bag-cutting mechanism further includes a gear set, which includes a driving gear and a first driven gear. The first driver is connected to the driving gear and is used to drive the driving gear to rotate. The first driven gear is coaxially fixed to the first connecting shaft.

5. The bag cutting mechanism of claim 4, wherein, The bag-cutting mechanism also includes an adjusting component, and the first connecting shaft is rotatably engaged with a portion of the adjusting component; The gear set further includes a second driven gear, which meshes with the first driven gear and is rotatably engaged with another part of the adjusting member; or, the first driven gear meshes with the driving gear and the driving gear is rotatably engaged with another part of the adjusting member.

6. An automatic bale opener comprising: Includes an ejection mechanism and a bag-cutting mechanism as described in any one of claims 1-5; The ejection mechanism includes a second driver, a lead screw, a nut, and a guide rail. The length direction of the lead screw and the guide rail are parallel to the conveying direction of the packaging bag. The second driver is connected to the lead screw and is used to drive the lead screw to rotate. The lead screw cooperates with the nut, and the guide rail is slidably connected to the nut. The nut is fixed with a push block for ejecting the material through the cut of the packaging bag.

7. The automatic bale opener of claim 6, wherein, The automatic unpacking machine also includes a first detection element. Both the first detection element and the second driver are communicatively connected to a controller. The controller is used to control the second driver to drive the ejection mechanism to eject the material from the cut of the packaging bag when the first detection element detects that material is passing through the first detection position. The first detection position is located between the bag cutting mechanism and the ejection mechanism. And / or, the automatic unpacking machine further includes a second detection element and a third detection element. When the pusher moves from the initial position to the end position, it can push the material out through the cut of the packaging bag. The second detection element, the third detection element, and the second driver are all communicatively connected to a controller. The controller is used to control the second driver to stop and then reverse its direction when the second detection element detects that the pusher has reached the end position. The controller is used to control the second driver to stop when the third detection element detects that the pusher has reached the initial position.

8. The automatic bale opener of claim 6, wherein, The ejection mechanism also includes a guide structure for guiding the ejected material to the outlet.

9. The automatic bale opener of any of claims 6-8, wherein, The automatic unpacking machine further comprises two limiting members movably connected with the shell of the automatic unpacking machine, capable of being fixed at multiple positions along the width direction of the conveying channel of the packaging bag, for limiting and adjusting the width of the conveying channel.

10. The automatic bale opener of claim 9, wherein, The shell is provided with a slide and two sets of clamping groove groups. The guide of the slide is consistent with the width direction of the conveying channel, and the limiting member is in sliding fit with the slide. The two sets of clamping groove groups correspond to the two limiting members one by one. Each set of clamping groove groups comprises multiple clamping grooves arranged along the width direction of the conveying channel. The limiting member is provided with a clamping hook capable of being elastically clamped with any clamping groove in the corresponding clamping groove group.

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