A bag breaking device

Abstract

The utility model discloses a bag breaking device, comprising a material inlet and a fixed block symmetrically fixed on the inner wall thereof, a knife holder connected to the fixed block and a 'P' blade fixed inside the knife holder are arranged inside the material inlet, a quick disassembly and replacement mechanism is arranged between the knife holder and the fixed block, a lifting operation mechanism is arranged on the top of the knife holder, and the quick replacement mechanism comprises: a connecting limit assembly and a fixing assembly; the connecting limit assembly is arranged between the knife holder and the fixed block; the fixing assembly is arranged on the side of the material inlet and connected with the knife holder; the utility model can realize accurate docking and limiting of the 'P' blade and the knife holder during installation through the designed connecting groove, connecting block, guide groove, guide block, limit groove and limit buckle, and at the same time accurately align the positioning hole with the screw hole, so as to easily penetrate and screw together using the positioning rod, and compared with the existing technology, the replacement work of the 'P' blade and the knife holder is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of material bag breaking equipment, and specifically relates to a bag breaking device. Background Art

[0002] The bag breaking machines currently on the market have the problem that after breaking the bag, the cross bag breaking knife cannot cut the corners of the woven bag, resulting in material residue. The bag breaking device adopts a cross knife and an adjustable angle knife holder that fits the bag shape, and the knives are arranged in a cross shape, which can completely cut the packaging bag without leaving any dead corners. When the existing bag breaking device is in use, the sharpness of the cross knife will decrease after a long period of use, and it needs to be replaced. However, the cross knife is fixedly connected to the feed port by bolts, which makes it more troublesome to disassemble the cross knife and requires tools. When installing a new cross knife, it is difficult to align the screw holes due to the lack of a connecting guide structure. For this reason, we propose a bag breaking device. Utility Model Content

[0003] The utility model aims to provide a bag breaking device to solve the problem that the bag breaking device mentioned in the background technology is troublesome when replacing the cross-shaped knife.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bag breaking device, comprising a material inlet and a fixed block symmetrically fixed on its inner wall, a knife holder connected to the fixed block and a Pozidriv blade fixed inside the knife holder are arranged inside the material inlet, a quick disassembly and replacement mechanism is arranged between the knife holder and the fixed block, a lifting operation mechanism is arranged on the top of the knife holder, and the quick replacement mechanism includes: a connection limit assembly and a fixing assembly; the connection limit assembly is arranged between the knife holder and the fixed block; the fixing assembly is arranged on the side of the material inlet and connected to the knife holder.

[0005] Preferably, the connection limit assembly includes a connection groove symmetrically opened at the bottom end of the tool holder and a connection block fixed at the top of the fixed block, the connection block is snap-connected with the connection groove, a guide groove is opened at the top of the connection block and a guide block fixed inside the connection groove, and the guide block is snap-connected with the guide groove.

[0006] Preferably, a limiting groove is provided on one side of the connecting block and a built-in groove is provided on the other side of the inner wall of the connecting groove, a limiting buckle is arranged inside the built-in groove, the limiting buckle is snap-connected with the limiting groove, a telescopic spring is connected between the limiting buckle and the built-in groove, sliding grooves and sliders symmetrically fixed on both sides of the limiting buckle are symmetrically provided on both sides of the inner wall of the built-in groove, and the sliders are slidably connected with the sliding grooves.

[0007] Preferably, the fixing assembly includes positioning holes opened on both sides of the tool holder and screw holes symmetrically penetrated on both sides of the inner wall of the material inlet. The side of the material inlet is provided with a positioning rod passing through the inside of the screw hole and connected to the positioning hole. The positioning rod is screwed and fixedly connected with the positioning hole.

[0008] Preferably, the lifting operation mechanism includes an operating handle symmetrically fixed on the top end of the tool holder.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model can realize accurate docking and limiting of the Pozidriv blade and the tool holder during installation through the designed connecting groove, connecting block, guide groove, guide block, limit groove and limit buckle, and can accurately align the positioning hole with the screw hole so as to easily penetrate and screw together with the positioning rod. Compared with the existing technology, the replacement work of the Pozidriv blade and the tool holder is greatly facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0012] Figure 2 For the utility model Figure 1 A magnified schematic diagram of point A;

[0013] Figure 3 For the utility model Figure 2 An enlarged schematic diagram of point B;

[0014] Figure 4 It is a top view of the structure of the Pozidriv blade of the utility model;

[0015] In the figure: 1. material inlet; 2. fixing block; 3. tool holder; 4. Pozidriv blade; 100. connecting groove; 101. connecting block; 200. guide groove; 201. guide block; 300. limit groove; 301. built-in groove; 302. limit buckle; 303. telescopic spring; 400. slide groove; 401. slide block; 500. positioning hole; 501. screw hole; 502. positioning rod; 600. operating handle. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 4The utility model provides a technical solution: a bag breaking device, including a material inlet 1 and a fixed block 2 symmetrically fixed on the inner wall thereof, a knife holder 3 connected to the fixed block 2 and a M-shaped blade 4 fixed inside the knife holder 3 are arranged inside the material inlet 1, a quick disassembly and replacement mechanism is arranged between the knife holder 3 and the fixed block 2, a lifting operation mechanism is arranged on the top of the knife holder 3, and the quick replacement mechanism includes: a connection limit assembly and a fixing assembly; the connection limit assembly is arranged between the knife holder 3 and the fixed block 2; the fixing assembly is arranged on the side of the material inlet 1 and connected to the knife holder 3.

[0018] In this embodiment, preferably, the connection limit assembly includes a connection groove 100 symmetrically opened at the bottom end of the tool holder 3 and a connection block 101 fixed at the top end of the fixed block 2. The connection block 101 is engaged with the connection groove 100 to facilitate the connection between the tool holder 3 and the fixed block 2. A guide groove 200 and a guide block 201 fixed inside the connection groove 100 are opened at the top end of the connection block 101. The guide block 201 is engaged with the guide groove 200 to allow the connection block 101 to play a guiding role when connected to the connection groove 100.

[0019] In this embodiment, preferably, a limiting groove 300 is provided on one side of the connecting block 101 and a built-in groove 301 is provided on the other side of the inner wall of the connecting groove 100, and a limiting buckle 302 is arranged inside the built-in groove 301, and the limiting buckle 302 is engaged and connected with the limiting groove 300, so as to temporarily limit the connecting block 101 and the connecting groove 100, and a telescopic spring 303 is connected between the limiting buckle 302 and the built-in groove 301, which can drive the limiting buckle 302 to reset and bounce up, and sliding grooves 400 and sliders 401 symmetrically fixed on both sides of the limiting buckle 302 are symmetrically provided on both sides of the inner wall of the built-in groove 301, and the sliders 401 are slidably connected with the sliding grooves 400, which can play a guiding role when the limiting opening 302 moves.

[0020] In this embodiment, preferably, the fixing component includes positioning holes 500 opened on both sides of the tool holder 3 and screw holes 501 symmetrically extending through both sides of the inner wall of the material inlet 1. The side of the material inlet 1 is provided with a positioning rod 502 which passes through the screw hole 501 and is connected to the positioning hole 500. The positioning rod 502 is screwed and fixedly connected with the positioning hole 500, so that the tool holder 3 can be fixed inside the material inlet 1.

[0021] In this embodiment, preferably, the lifting operation mechanism includes an operating handle 600 symmetrically fixed on the top of the tool holder 3, so as to facilitate lifting the tool holder 3 for movement.

[0022] The working principle and use process of the utility model are as follows: when the M-shaped blade 4 needs to be replaced, the positioning rod 502 on the side of the material inlet 1 is first loosened, so that the end of the rod is withdrawn from the inside of the positioning hole 500 and screwed into the inside of the screw hole 501, so that the positioning of the knife holder 3 can be released, and then the knife holder 3 is pulled apart from the fixed block 2 by operating the handle 600, so that it drives the connecting groove 100 and the connecting block 101 to move and squeeze the limiting buckle 302. The limiting buckle 302 is squeezed by the external force and the telescopic spring 303 is deformed and withdraws from the inside of the limiting groove 300 and shrinks into the inside of the built-in groove 301, so that the limit of the connecting groove 100 can be released, and then the knife holder 3 is continued to be lifted, so that it drives the connecting groove 100 to separate from the connecting block 101, and drives the guide block 201 to withdraw from the inside of the guide groove 200, so that the knife holder 3 and The Mi-shaped blade 4 withdraws from the interior of the material inlet 1 and separates from the fixed block 2. Then the tool holder 3 and the Mi-shaped blade 4 can be replaced. The new Mi-shaped blade 4 and the tool holder 3 are embedded in the interior of the material inlet 1, so that the tool holder 3 and the fixed block 2 are fitted and connected, and the connecting groove 100 is driven to engage and connect with the connecting block 101, and at the same time, the guide block 201 is driven to embed into the interior of the guide groove 200. At this time, the limit buckle 302 is reset from the interior of the built-in groove 301 under the action of the telescopic spring 303 and pops out and is inserted into the interior of the limit groove 300. The tool holder 3 can be temporarily limited, and the positioning hole 500 and the screw hole 501 can be accurately aligned. Then, the positioning rod 502 is tightened to rotate inside the screw hole 501 and screwed and fixedly connected with the positioning hole 500. The tool holder 3 can be fixed to complete the replacement of the Mi-shaped blade 4.

[0023] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag breaking device, comprising a material inlet (1) and a fixed block (2) symmetrically fixed to the inner wall thereof, wherein a knife holder (3) connected to the fixed block (2) and a Pozidriv blade (4) fixed inside the knife holder (3) are arranged inside the material inlet (1), characterized in that: A quick disassembly and replacement mechanism is provided between the tool holder (3) and the fixed block (2); a lifting operation mechanism is provided at the top of the tool holder (3); the quick disassembly and replacement mechanism comprises: a connection limit assembly and a fixing assembly; the connection limit assembly is provided between the tool holder (3) and the fixed block (2); the fixing assembly is provided on the side of the material inlet (1) and connected to the tool holder (3).

2. A bag breaking device according to claim 1, characterized in that: The connection limit assembly comprises a connection groove (100) symmetrically arranged at the bottom end of the tool holder (3) and a connection block (101) fixed at the top end of the fixed block (2), the connection block (101) being snap-fitted and connected to the connection groove (100), a guide groove (200) being arranged at the top end of the connection block (101) and a guide block (201) fixed inside the connection groove (100), the guide block (201) being snap-fitted and connected to the guide groove (200).

3. A bag breaking device according to claim 2, characterized in that: A limiting groove (300) is provided on one side of the connection block (101) and a built-in groove (301) is provided on the other side of the inner wall of the connection groove (100); a limiting buckle (302) is provided inside the built-in groove (301); the limiting buckle (302) is snap-connected with the limiting groove (300); a telescopic spring (303) is connected between the limiting buckle (302) and the built-in groove (301); sliding grooves (400) and sliding blocks (401) symmetrically fixed on both sides of the limiting buckle (302) are symmetrically provided on the inner wall of the built-in groove (301); the sliding blocks (401) are slidably connected with the sliding grooves (400).

4. A bag breaking device according to claim 1, characterized in that: The fixing assembly comprises positioning holes (500) provided on both sides of the tool holder (3) and screw holes (501) symmetrically extending through both sides of the inner wall of the material inlet (1); a positioning rod (502) extending through the screw hole (501) and connected to the positioning hole (500) is provided on the side of the material inlet (1); the positioning rod (502) is screwed together and fixedly connected to the positioning hole (500).

5. A bag breaking device according to claim 1, characterized in that: The lifting operation mechanism comprises an operation handle (600) symmetrically fixed on the top end of the tool holder (3).

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