Automatic bag opening device

Abstract

An automatic bag opening device comprises a bag cutting mechanism and a material squeezing mechanism, wherein the material squeezing mechanism is fixedly mounted on the bag cutting mechanism, the bag cutting mechanism comprises a bag cutting blade structure, a bag cutting drive structure and a bag cutting frame, the bag cutting drive structure is mounted on the bag cutting frame, the bag cutting blade structure is slidably mounted on the bag cutting drive structure, and the material squeezing mechanism is mounted on the bag cutting frame, the material storage parts are cut open by the bag cutting mechanism to form an opening, and the food in the material storage parts is squeezed out by the material squeezing mechanism, thereby realizing automatic bag opening and automatic squeezing operations, replacing manual operations, and greatly facilitating the entire automated operation process.

Description

Technical Field

[0001] The invention belongs to the field of bag opening equipment, and in particular relates to an automatic bag opening device. Background Art

[0002] With the continuous development of social productivity, people's living standards are constantly improving, and there are more and more types of food. Different types of food are packaged in different plastic soft packages. When eating, most of the plastic soft packages are opened manually, and some plastic soft packages are not easy to open for young children and women. At present, there is no mechanism for automatically tearing open plastic soft packages on the market, which conflicts with the growing life needs. Summary of the invention

[0003] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide an automatic bag opening device. The present invention can solve the problem of automatic bag opening, can replace manual work, and greatly facilitate the entire automated operation process.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An automatic bag opening device comprises a bag cutting mechanism and a material squeezing mechanism. The material squeezing mechanism is fixedly mounted on the bag cutting mechanism. The bag cutting mechanism comprises a bag cutting blade structure, a bag cutting drive structure and a bag cutting frame. The bag cutting drive structure is mounted on the bag cutting frame. The bag cutting blade structure is slidably mounted on the bag cutting drive structure. The material squeezing mechanism is mounted on the bag cutting frame.

[0006] Furthermore, the bag cutting drive structure includes a gear set, a bidirectional screw rod, a guide rod and a bag cutting drive motor. The bag cutting drive motor is fixedly mounted on the bag cutting frame, the bidirectional screw rod and the guide rod are installed in the bag cutting frame, the bag cutting drive motor is connected to the bidirectional screw rod, and the bag cutting blade structure is slidably connected to the bidirectional screw rod and the guide rod.

[0007] Furthermore, the bag cutting blade structure includes a left bag cutting blade portion and a right bag cutting blade portion. The left bag cutting blade portion and the right bag cutting blade portion are arranged opposite to each other and are rotationally connected to the bidirectional screw rod respectively.

[0008] Furthermore, the left bag cutting blade part includes a knife-cutting assembly, a blade assembly, a left transmission assembly fixing plate and a left knife rod assembly. The blade assembly is fixed to the knife-cutting assembly by screws, and the knife-cutting assembly is slidably installed on the left knife rod assembly. The left knife rod assembly is connected to the left transmission assembly fixing plate, and the left transmission assembly fixing plate is slidably connected to the bidirectional screw rod.

[0009] Furthermore, the right bag cutting blade portion includes a knife back assembly, a right knife rod assembly, a right transmission assembly fixing plate and a back knife block. The back knife block is fixed to the back knife assembly by screws, the back knife assembly is slidably mounted on the right knife rod assembly, and the right knife rod assembly is slidably mounted on the right transmission assembly fixing plate.

[0010] Furthermore, the extrusion mechanism includes an extrusion structure, an extrusion drive structure and an extrusion frame. The extrusion frame is installed on the bag cutting frame, the extrusion drive structure is rotatably installed on the extrusion frame, and the extrusion structure is slidably installed on the extrusion drive structure.

[0011] Furthermore, the extruder frame includes a fixed bottom plate and a concave back plate, the fixed bottom plate is installed on the bag cutting frame, the concave back plate is fixedly installed on the fixed bottom plate, a guide groove is provided on the end surface of the concave back plate, and the extruder structure is slidably connected to the guide groove.

[0012] Furthermore, the extrusion drive structure includes a vertical guide rod, a vertical screw rod and an extrusion drive motor. The vertical screw rod and the vertical guide rod are rotatably mounted on a fixed bottom plate, and the extrusion drive motor is connected to the vertical screw rod.

[0013] Furthermore, the extrusion structure includes an extrusion arm, an arm fixing plate, a horizontal guide rod, a guide rod fixing block and a connecting plate, wherein the extrusion arm is fixedly connected to the arm fixing plate by screws, the horizontal guide rod is fixedly connected to the arm fixing plate, the horizontal guide rod is slidably connected to the guide rod fixing block, the guide rod fixing block is fixedly connected to the connecting plate, and the connecting plate is slidably connected to the vertical screw rod and the vertical guide rod.

[0014] Furthermore, a first sensor and a second sensor are fixedly mounted on the fixed bottom plate, a third sensor and a fourth sensor are fixedly mounted on the rear end surface of the concave back plate, and a ratchet block is rotatably mounted on the front end surface of the concave back plate.

[0015] The beneficial effect of the present invention is that the storage material piece is cut open by the bag cutting mechanism to form an opening, and the food in the storage material piece is squeezed out by the squeezing mechanism, thereby realizing automatic bag opening and automatic squeezing operations, replacing manual operations, and greatly facilitating the entire automated operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automatic bag opening mechanism;

[0017] Figure 2 It is a front view of the overall device structure;

[0018] Figure 3 It is the left view of the overall device structure;

[0019] Figure 4 It is a top view of the overall device structure;

[0020] Figure 5 This is the exploded view of the bag shearing mechanism;

[0021] Figure 6 It is the front view of the bag cutting mechanism;

[0022] Figure 7It is a top view of the bag cutting mechanism;

[0023] Figure 8 It is the axonometric view of the gear set;

[0024] Fig. 9 It is the isometric view of the back knife assembly;

[0025] Fig.10 This is the exploded view of the back knife assembly;

[0026] Fig.11 Axonometric view of the right tool bar assembly

[0027] Fig.12 Axonometric view of the knife and fork assembly

[0028] Fig.13 Axonometric view of the blade assembly

[0029] Fig.14 Axonometric view of the left tool bar assembly

[0030] Fig.15 It is the left view of the extrusion mechanism;

[0031] Fig.16 It is the left view of the extrusion mechanism;

[0032] Fig.17 This is an axonometric view of the concave back panel.

[0033] Figure numerals: bag cutting mechanism 1, material extruding mechanism 2, material storage part 3, bag cutting drive motor 1.1, bidirectional screw 1.2, guide rod 1.3, right fixed plate 1.4, fixed bottom plate 1.5, left fixed plate 1.6, right slope guide block 1.7, knife back assembly 1.8, right knife bar assembly 1.9, knife assembly 1.10, blade assembly 1.11, left slope guide block 1.12, left transmission assembly fixed plate 1.13, gear set 1.14, right transmission assembly fixed plate 1.16, left knife bar assembly 1.17, back knife block 1.18;

[0034] Plug screw Ⅰ1.81, fixing block Ⅰ1.82, linear bearing 1.83, magnet Ⅰ1.84, bump 1.85, magnet fixing block Ⅰ1.86, roller Ⅰ1.87;

[0035] Plug screw Ⅱ1.91, linear guide rod Ⅰ1.92, tool bar fixing block 1.93;

[0036] Plug screw Ⅲ1.101, fixing block Ⅱ1.102, linear bearing Ⅱ1.103, magnet fixing block Ⅱ1.104, concave block 1.105, roller Ⅱ1.106, magnet Ⅱ1.107;

[0037] Plug screw IV 1.111, blade fixing block 1.112, toothed knife blade 1.113;

[0038] A driving wheel 1.141, a first driven wheel 1.142, and a second driven wheel 1.143;

[0039] Plug screw V1.171, linear guide rod II1.172, blade pressing block 1.173, knife pressing blade 1.174, knife pressing block 1.175;

[0040] Concave back plate 2.1, ratchet block 2.2, extrusion arm 2.3, arm fixing plate 2.4, horizontal guide rod 2.5, horizontal linear bearing 2.6, guide rod fixing block 2.7, connecting plate 2.8, vertical guide rod 2.9, vertical linear bearing 2.10, vertical lead screw 2.11, coupling 2.12, extrusion drive motor 2.13, fixed bottom plate 2.14, first sensor 2.15, second sensor 2.16, induction sheet 2.17, extrusion contact material 2.18, third sensor 2.19, fourth sensor 2.20, cam follower 2.21, motor fixing sheet metal 2.22, lead screw nut 2.23. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] An automatic bag opening device comprises a bag cutting mechanism 1 and a material squeezing mechanism 2. The material squeezing mechanism 2 is fixedly mounted on the bag cutting mechanism 1. The bag cutting mechanism 1 comprises a bag cutting blade structure, a bag cutting drive structure and a bag cutting frame. The bag cutting drive structure is mounted on the bag cutting frame. The bag cutting blade structure is slidably mounted on the bag cutting drive structure. The material squeezing mechanism 2 is mounted on the bag cutting frame. The material storage part 3 is cut open by the bag cutting mechanism 1 to form an opening. The food in the material storage part 3 is squeezed out by the material squeezing mechanism 2, thereby realizing automatic bag opening and automatic squeezing operations, replacing manual operations, and greatly facilitating the entire automated operation process.

[0043] The bag cutting drive structure includes a gear set 1.14, a bidirectional screw rod 1.2, a guide rod 1.3 and a bag cutting drive motor 1.1. The bag cutting drive motor 1.1 is fixedly installed on the bag cutting frame. The bidirectional screw rod 1.2 and the guide rod 1.3 are installed in the bag cutting frame. The bag cutting drive motor 1.1 is connected to the bidirectional screw rod 1.2. The bag cutting blade structure is slidably connected to the bidirectional screw rod 1.2 and the guide rod 1.3. Two screw threads with opposite rotation directions are provided on the bidirectional screw rod 1.2. The left bag cutting blade part and the right bag cutting blade part in the bag cutting blade structure are opened and closed by rotating the bidirectional screw rod 1.2, thereby cutting the stored material parts. The guide rod 1.3 is set to guide the left bag cutting blade part and the right bag cutting blade part.

[0044] The gear set 1.14 comprises a driving wheel 1.141, a first driven wheel 1.142 and a second driven wheel 1.143. The bag cutting driving motor 1.1 is connected to the driving wheel 1.141, so that the first driven wheel 1.142 and the second driven wheel 1.143 rotate.

[0045] The bag cutting blade structure includes a left bag cutting blade portion and a right bag cutting blade portion. The left bag cutting blade portion and the right bag cutting blade portion are arranged opposite to each other and are respectively rotatably connected to a bidirectional screw rod 1.2. The left bag cutting blade portion and the right bag cutting blade portion in the bag cutting blade structure are opened and closed by rotating the bidirectional screw rod 1.2, thereby cutting open the stored material pieces.

[0046] The left-side bag cutting blade part includes a knife-cutting assembly 1.10, a blade assembly 1.11, a left-side transmission assembly fixing plate 1.13 and a left knife rod assembly 1.17. The blade assembly 1.11 is fixed to the knife-cutting assembly 1.10 by screws. The knife-cutting assembly 1.11 is slidably mounted on the left knife rod assembly 1.17 through a linear bearing II 1.103. The left knife rod assembly 1.17 is connected to the left-side transmission assembly fixing plate 1.13 by a plug screw V 1.171. The left-side transmission assembly fixing plate 1.13 is slidably connected to the bidirectional screw 1.2. An induction sheet I 1.15 is fixedly mounted on the left-side transmission assembly fixing plate 1.13.

[0047] The knife and fork assembly 1.10 includes a driving screw III 1.101, a fixing block II 1.102, a linear bearing II 1.103, a magnet fixing block II 1.104, a recessed block 1.105, a roller II 1.106 and a magnet II 1.107. The linear bearing II 1.103 is fixedly installed in the fixing block II 1.102. The driving screw III 1.101, the roller II 1.106 and the magnet fixing block II 1.104 are fixedly connected to the side of the fixing block II 1.102. The magnet II 1.107 is fixedly installed on the magnet fixing block II 1.104. The recessed block 1.105 is fixedly installed on the lower end surface of the fixing block II 1.102.

[0048] In some preferred embodiments, a left ramp guide block 1.12 is fixedly mounted on the left transmission assembly fixing plate 1.13, and the left ramp guide block 1.12 is adapted to roller II 1.106. Correspondingly, a right ramp guide block 1.7 is fixedly mounted on the right transmission assembly fixing plate 1.16, and the right ramp guide block 1.7 is adapted to roller I 1.87.

[0049] The blade assembly 1.11 includes a driving screw IV1.111, a blade fixing block 1.112, and a serrated blade 1.113. The driving screw IV1.111 is fixedly mounted on the blade fixing block 1.112, and the serrated blade 1.113 is fixedly mounted on the front end surface of the blade fixing block 1.112.

[0050] The left tool bar assembly 1.17 includes a driving screw V1.171, a linear guide rod II1.172, a blade pressing block 1.173, a knife pressing blade 1.174, and a knife pressing clamping block 1.175. The knife pressing clamping block 1.175 is fixedly installed on the lower end face of the blade pressing block 1.173, the knife pressing blade 1.174 is fixedly installed between the knife pressing clamping block 1.175 and the blade pressing block 1.173, the linear guide rod II1.172 is fixedly installed on the upper end face of the blade pressing block 1.173, and the driving screw V1.171 is fixedly installed on the rear end face of the blade pressing block 1.173.

[0051] The right bag cutting blade part includes a knife back assembly 1.8, a right knife bar assembly 1.9, a right transmission assembly fixing plate 1.16 and a back knife block 1.18. The back knife block 1.18 is fixed to the back knife assembly 1.8 by screws. The back knife assembly 1.8 is slidably installed on the right knife bar assembly 1.9. The right knife bar assembly 1.9 is slidably installed on the right transmission assembly fixing plate 1.16 by plugging screws Ⅱ1.91.

[0052] The back knife assembly 1.8 includes a driving screw Ⅰ1.81, a fixing block Ⅰ1.82, a linear bearing 1.83, a magnet Ⅰ1.84, a protrusion 1.85, a magnet fixing block Ⅰ1.86, and a roller Ⅰ1.87. The linear bearing 1.83 is fixedly installed in the fixing block Ⅰ1.82, the driving screw Ⅰ1.81, the magnet Ⅰ1.84, the magnet fixing block Ⅰ1.86, and the roller Ⅰ1.87 are fixedly installed on the side wall of the fixing block Ⅰ1.82, and the protrusion 1.85 is fixedly installed on the lower end surface of the fixing block Ⅰ1.82.

[0053] The right tool bar assembly 1.9 includes a hit screw II 1.91, a linear guide rod I 1.92, and a tool bar fixing block 1.93. The hit screw II 1.91 is fixedly installed on the back side of the tool bar fixing block 1.93, the linear guide rod I 1.92 is fixedly installed on the upper end surface of the tool bar fixing block 1.93, and the linear bearing 1.83 is slidably connected to the linear guide rod I 1.92.

[0054] The bag cutting machine frame comprises a right fixed plate 1.4, a fixed bottom plate 1.5 and a left fixed plate 1.6. The right fixed plate 1.4 and the left fixed plate 1.6 are arranged in parallel and are fixedly connected with each other through the fixed bottom plate 1.5.

[0055] The extrusion mechanism 2 includes an extrusion structure, an extrusion drive structure and an extrusion frame. The extrusion frame is installed on the bag cutting frame, the extrusion drive structure is rotatably installed on the extrusion frame, and the extrusion structure is slidably installed on the extrusion drive structure. The storage material is clamped by the extrusion structure, and the extrusion drive structure drives the extrusion structure to extrude the material in the storage material.

[0056] The extruder frame includes a fixed bottom plate 2.14 and a concave back plate 2.1. The fixed bottom plate 2.14 is mounted on the bag cutting frame, and the concave back plate 2.1 is fixedly mounted on the fixed bottom plate 2.14. A guide groove is provided on the end surface of the concave back plate 2.1, and the extruder structure is slidably connected with the guide groove.

[0057] The extrusion drive structure includes a vertical guide rod 2.9, a vertical screw rod 2.11 and an extrusion drive motor 2.13. The vertical screw rod 2.11 and the vertical guide rod 2.9 are rotatably mounted on a fixed base plate 2.14. The extrusion drive motor 2.13 is connected to the vertical screw rod 2.11 through a coupling 2.12. The extrusion drive motor 2.13 is fixedly mounted on the fixed base plate 2.14 through a motor fixing sheet metal 2.22.

[0058] The extrusion structure includes an extrusion arm 2.3, an arm fixing plate 2.4, a horizontal guide rod 2.5, a guide rod fixing block 2.7 and a connecting plate 2.8. The extrusion arm 2.3 is fixedly connected to the arm fixing plate 2.4 by screws, the horizontal guide rod 2.5 is fixedly connected to the arm fixing plate 2.4, the horizontal guide rod 2.5 is slidably connected to the guide rod fixing block 2.7 by a horizontal linear bearing 2.6, and the guide rod fixing block 2.7 is fixedly connected to the connecting plate 2.8. The connecting plate 2.8 is slidably connected to the vertical screw rod 2.11 and the vertical guide rod 2.9, and an extrusion contact material 2.18 is fixedly connected in the extrusion arm 2.3.

[0059] In some preferred embodiments, a cam follower 2.21 is fixedly connected to the arm fixing plate 2.4, and the cam follower 2.21 is slidably installed in the guide groove of the concave back plate 2.1.

[0060] A screw nut 2.23 and a vertical linear bearing 2.10 are fixedly installed in the connecting plate 2.8, and the screw nut 2.23 and the vertical linear bearing 2.10 are connected with the vertical screw 2.11 and the vertical guide rod 2.9.

[0061] A first sensor 2.15 and a second sensor 2.16 are fixedly mounted on the fixed bottom plate 2.14, a third sensor 2.19 and a fourth sensor 2.20 are fixedly mounted on the rear end surface of the concave back plate 2.1, a ratchet block 2.2 is rotatably mounted on the front end surface of the concave back plate 2.1, and a sensing sheet 2.17 is fixedly connected to the side wall of the connecting plate 2.8.

[0062] The working process of this automatic bag opening mechanism is:

[0063] When the packaging bag 3 is in Figure 1When in the position shown, the bag cutting drive motor 1.1 is energized, and the output shaft of the bag cutting drive motor 1.1 drives the driving wheel 1.141 to rotate; the driving wheel 1.141 drives the first driven wheel 1.142 and the second driven wheel 1.143 to rotate respectively; thereby driving the bidirectional screw rod 1.2 to rotate; thereby driving the left transmission component fixing plate 1.13 and the right transmission component fixing plate 1.16 and the components fixed thereon to move toward each other. During the process of moving toward each other, since the back knife component 1.8 and the knife component 1.10 thereon are respectively fixed with magnets Ⅰ1.84 and magnets Ⅱ1.107, due to the magnetic attraction of the magnets, the magnet fixing block Ⅰ1.86 and the magnet fixing block Ⅱ1.104 will be moved along the plug screw Ⅰ1.81 and the plug screw respectively. The nail III 1.101 speeds up the speed of moving towards each other, and then first sucks together to clamp the lower end of the packaging bag 3 for preliminary fixation; when the bag cutting drive motor 1.1 continues to move, the convex block 1.85 and the concave block 1.105 move towards each other until the concave and convex parts fit together, and therefore the back knife assembly 1.8 and the knife assembly 1.10 can be kept in the same horizontal plane and relatively clamped. The bag cutting drive motor 1.1 continues to move, the back knife assembly 1.8 and the knife assembly 1.10 continue to remain in the center position, and the left transmission assembly fixing plate 1.13 and the right transmission assembly fixing plate 1.16 continue to move towards each other. At this time, the left transmission assembly fixing plate 1.13 and the right transmission assembly fixing plate 1.16 are respectively connected to the back knife assembly 1.8 and The knife assembly 1.10 achieves relative motion; when the motion continues, until [roller I 1.87 hits the right slope guide block 1.7 and moves upward along the slope relative to the right slope guide block 1.7, that is, the back knife assembly 1.8 moves vertically upward relative to the right knife bar assembly 1.9, roller II 1.106 hits the left slope guide block 1.12 and moves upward along the slope relative to the left slope guide block 1.12, that is, the knife assembly 1.10 moves vertically upward relative to the left knife bar assembly 1.17. This part of the action is intended to squeeze the material in the packaging bag 3 from the bottom upward to form a vacuum material-free part, which is convenient for the subsequent cutting of the packaging bag 3 at this position. At the same time, the toothed knife blade 1.113 in the blade assembly 1.11 pushes the packaging bag 3 against When the movement continues, the left transmission assembly fixing plate 1.13 respectively supports the plug screw IV 1.111 of the blade assembly 1.11, thereby indirectly supporting the serrated blade 1.113 and causing it to move rightward relative to the knife assembly 1.10, so that the serrated blade 1.113 passes through the packaging bag 3 to cut the packaging bag 3; when the induction sheet I 1.15 installed on the left transmission assembly fixing plate 1.13 moves to the second sensor 2.16, the second sensor 2.16 is triggered, and the bag cutting drive motor 1.1 stops rotating. Then, the bag cutting drive motor 1.1 starts to rotate in the reverse direction, and the left transmission assembly fixing plate 1.13 is turned on.13 and the parts fixed on it start to move relative to the right transmission assembly fixing plate 1.16 and the parts fixed on it. The toothed knife blade 1.113 retreats first due to the rebound force of the compression spring on the plug screw IV 1.111. With continuous movement, the roller I 1.87 moves downward along the inclined surface of the right slope guide block 1.7, and the roller II 1.106 moves downward along the inclined surface of the left slope guide block 1.12. Then, the protrusions 1.85 and the concave blocks 1.105 that engage with each other on the back knife assembly 1.8 and the knife assembly 1.10 separate, until the induction sheet I 1.15 moves to the position of the first sensor 2.15, and the bag cutting drive motor 1.1 stops rotating. In the process of the above-mentioned drive motor I 1.1 rotating in the opposite direction to stopping, when the magnet I 1.84 and the magnet II 1.107 separate, the material in the packaging bag 3 begins to fall downward in free fall. .

[0064] When the driving motor I1.1 finally stops rotating, the induction sheet II2.17 on the extruding mechanism 2 is located at the position of the sensor IV2.20, and the cam followers 2.21 on both sides of the concave back plate 2.1 are located at the top of the concave back plate 2.1 groove. At this time, when the driving motor I1.1 stops, the driving motor II2.13 starts to rotate, and the vertical screw rod 2.11 connected thereto drives the connecting plate 2.8 to move downward, and the cam follower 2.21 moves along the inclined edge of the ratchet block 2.2 and the groove track close to the center. As the cam follower 2.21 moves to the bottom, the sensing sheet II 2.17 moves to the position of the third sensor 2.19, and the driving motor II 2.13 stops rotating. Due to the built-in compression spring of the horizontal guide rod 2.5, the cam follower 2.21 moves along the bottom of the groove to the side away from the center, and the arm fixing plate 2.4 and the components thereon move outward and also move to the side away from the center, until the cam follower 2.21 moves to the bottom of the groove due to the built-in compression spring of the horizontal guide rod 2.5. The material inside the packaging bag 3 has been squeezed out through the cut hole. After 30 seconds, the system starts to drive the motor II 2.13 to move in the opposite direction, and moves the cam follower 2.21 upward along the groove track away from the center. When the cam follower 2.21 contacts the ratchet block 2.2, it pushes the ratchet block 2.2 away and continues to move upward along the groove track until the sensor sheet II 2.17 moves to the fourth sensor 2.20 position again. At this time, the cam follower 2.21 has also moved to the top of the groove, and the drive motor II 2.13 stops rotating.

[0065] The above is an action cycle of the system device.

[0066] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0067] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. An automatic bag opening device, characterized in that: The bag cutting machine comprises a bag cutting mechanism (1) and a material squeezing mechanism (2), wherein the material squeezing mechanism (2) is fixedly mounted on the bag cutting mechanism (1), the bag cutting mechanism (1) comprises a bag cutting blade structure, a bag cutting drive structure and a bag cutting machine frame, the bag cutting drive structure is mounted on the bag cutting machine frame, the bag cutting blade structure is slidably mounted on the bag cutting drive structure, and the material squeezing mechanism (2) is mounted on the bag cutting machine frame; The bag cutting drive structure comprises a gear set (1.14), a bidirectional screw rod (1.2), a guide rod (1.3) and a bag cutting drive motor (1.1); the bag cutting drive motor (1.1) is fixedly mounted on a bag cutting machine frame; the bidirectional screw rod (1.2) and the guide rod (1.3) are mounted in the bag cutting machine frame; the bag cutting drive motor (1.1) is connected to the bidirectional screw rod (1.2); and the bag cutting blade structure is slidably connected to the bidirectional screw rod (1.2) and the guide rod (1.3); The left-side bag cutting blade part includes a knife assembly (1.10) and a left-side transmission assembly fixing plate (1.13). The knife assembly (1.10) includes a plug screw III (1.101), a fixing block II (1.102), a linear bearing II (1.103), a magnet fixing block II (1.104), a concave block (1.105), a roller II (1.106) and a magnet II (1.107). The linear bearing II (1.103) is fixedly installed in the fixing block II (1.102). The plug screw III (1.101), the roller II (1.106) and the magnet fixing block II (1.104) are fixedly connected to the side of the fixing block II (1.102). The magnet II (1.107) is fixedly installed on the magnet fixing block II (1.104). The concave block (1.105) is fixedly installed on the lower end surface of the fixing block II (1.102). The right bag cutting blade portion includes a blade back assembly (1.8) and a right transmission assembly fixing plate (1.16); the blade back assembly (1.8) includes a plug screw I (1.81), a fixing block I (1.82), a linear bearing (1.83), a magnet I (1.84), a convex block (1.85), a magnet fixing block I (1.86), and a roller I (1.87); the linear bearing (1.83) is fixedly installed in the fixing block I (1.82); the plug screw I (1.81), the magnet I (1.84), the magnet fixing block I (1.86), and the roller I (1.87) are fixedly installed on the side wall of the fixing block I (1.82); and the convex block (1.85) is fixedly installed on the lower end surface of the fixing block I (1.82); A left ramp guide block (1.12) is fixedly mounted on the left transmission assembly fixing plate (1.13), and the left ramp guide block (1.12) is adapted to roller II (1.106). A right ramp guide block (1.7) is fixedly mounted on the right transmission assembly fixing plate (1.16), and the right ramp guide block (1.7) is adapted to roller I (1.87).

2. The automatic bag opening device according to claim 1, characterized in that: The pocket cutting blade structure comprises a left pocket cutting blade portion and a right pocket cutting blade portion, wherein the left pocket cutting blade portion and the right pocket cutting blade portion are arranged opposite to each other and are respectively rotatably connected to a bidirectional screw rod (1.2).

3. The automatic bag opening device according to claim 2, characterized in that: The left-side pocket cutting blade part also includes a blade assembly (1.11) and a left knife bar assembly (1.17). The blade assembly (1.11) is fixed to the knife assembly (1.10) by screws. The knife assembly (1.10) is slidably mounted on the left knife bar assembly (1.17). The left knife bar assembly (1.17) is connected to the left-side transmission assembly fixing plate (1.13). The left-side transmission assembly fixing plate (1.13) is slidably connected to the bidirectional lead screw (1.2).

4. The automatic bag opening device according to claim 2, characterized in that: The right bag cutting blade part also includes a right knife bar assembly (1.9) and a back knife block (1.18), the back knife block (1.18) is fixed to the knife back assembly (1.8) by screws, the knife back assembly (1.8) is slidably mounted on the right knife bar assembly (1.9), and the right knife bar assembly (1.9) is slidably mounted on the right transmission assembly fixing plate (1.16).

5. The automatic bag opening device according to claim 1, characterized in that: The extrusion mechanism (2) comprises an extrusion structure, an extrusion drive structure and an extrusion frame, wherein the extrusion frame is mounted on the bag cutting frame, the extrusion drive structure is rotatably mounted on the extrusion frame, and the extrusion structure is slidably mounted on the extrusion drive structure.

6. The automatic bag opening device according to claim 5, characterized in that: The extruder frame comprises a fixed bottom plate (2.14) and a concave back plate (2.1), the fixed bottom plate (2.14) is mounted on the bag shearing frame, the concave back plate (2.1) is fixedly mounted on the fixed bottom plate (2.14), a guide groove is provided on the end surface of the concave back plate (2.1), and the extruder structure is slidably connected to the guide groove.

7. The automatic bag opening device according to claim 6, characterized in that: The extrusion drive structure comprises a vertical guide rod (2.9), a vertical lead screw (2.11) and an extrusion drive motor (2.13); the vertical lead screw (2.11) and the vertical guide rod (2.9) are rotatably mounted on a fixed base plate (2.14); and the extrusion drive motor (2.13) is connected to the vertical lead screw (2.11).

8. The automatic bag opening device according to claim 5, characterized in that: The extrusion structure comprises an extrusion arm (2.3), an arm fixing plate (2.4), a horizontal guide rod (2.5), a guide rod fixing block (2.7) and a connecting plate (2.8); the extrusion arm (2.3) is fixedly connected to the arm fixing plate (2.4) by screws; the horizontal guide rod (2.5) is fixedly connected to the arm fixing plate (2.4); the horizontal guide rod (2.5) is slidably connected to the guide rod fixing block (2.7); the guide rod fixing block (2.7) is fixedly connected to the connecting plate (2.8); and the connecting plate (2.8) is slidably connected to the vertical lead screw (2.11) and the vertical guide rod (2.9).

9. The automatic bag opening device according to claim 6, characterized in that: A first sensor (2.15) and a second sensor (2.16) are fixedly mounted on the fixed bottom plate (2.14), a third sensor (2.19) and a fourth sensor (2.20) are fixedly mounted on the rear end surface of the concave back plate (2.1), and a ratchet block (2.2) is rotatably mounted on the front end surface of the concave back plate (2.1).

Images