Knife changing type food packaging shredding structure

Abstract

The invention discloses a cutter changing type food packaging shredding structure which comprises a transmission box body, a driving block, an integrated plate, an upper-layer shredding assembly, a lower-layer shredding assembly and a lifting motor. The integrated plate is driven by the lifting motor to move up and down, so that the up-down position of the upper-layer rotating wheel or the lower-layer rotating wheel can be adjusted, and whether the upper-layer rotating wheel is in friction abutting connection with the driving block or the lower-layer rotating wheel is in friction abutting connection with the driving block is conveniently controlled; according to the cutting device, timely switching can be conducted, packaging wires can be cut through the upper-layer rotating cutter or the lower-layer rotating cutter, in this way, long-time shutdown overhaul and accessory replacement are not needed in the operation process, only the position of the upper-layer rotating wheel or the lower-layer rotating wheel needs to be switched, and use is flexible and convenient.

Description

Technical Field

[0001] This invention belongs to the field of food packaging technology, and in particular relates to a replaceable blade food packaging shredding structure. Background Technology

[0002] Food packaging generally requires packaging machines. However, for some special food packaging, it is often necessary to use packaging wires for twisting and positioning to prevent the packaging paper from loosening and falling off. Therefore, when using packaging machines, it is often necessary to integrate the slicing and twisting structures. Existing slicing structures generally use a reciprocating rotating cutter for cutting, along with a positioning cutter. As the rotating cutter reciprocates, it periodically forms a shearing structure with the positioning cutter, achieving stable cutting. However, in this structure, after prolonged operation, wear will occur between the cutter discs due to the reciprocating cutting of the rotating cutter, which reduces the cutting sensitivity of the cutter. This often leads to continuous cutting during operation, requiring machine shutdown for replacement and maintenance, which seriously affects the operating efficiency. Therefore, it is necessary to upgrade and modify the existing structure to improve the efficiency of replacement during operation. Summary of the Invention

[0003] To address the shortcomings of the existing technology, the present invention provides a replaceable blade food packaging shredding structure that allows for convenient and quick switching and high-efficiency operation.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A blade-changing food packaging shredding structure includes a transmission housing, a drive block, an integrated plate, an upper shredding assembly, a lower shredding assembly, and a lifting motor. An integrated plate is slidably mounted vertically on one side of the transmission housing. The upper and lower shredding assemblies are respectively mounted on the upper and lower sides of the integrated plate. The upper shredding assembly includes an upper rotating wheel, an upper rotating cutter, and an upper positioning cutter. The lower shredding assembly includes a lower rotating wheel, a lower rotating cutter, and a lower positioning cutter. The upper and lower positioning cutters are respectively mounted vertically on the outer side of the integrated plate. The upper and lower rotating cutters are respectively oscillatingly mounted vertically on the upper and lower sides of the integrated plate. The inner end of the upper rotating cutter is located inside the transmission housing and connected to the upper rotating wheel, while the lower rotating cutter… The inner end of the cutter is located inside the transmission housing and connected to the lower rotating wheel; the upper rotating wheel rotates and drives the upper rotating cutter and the upper positioning cutter to form a shearing operation; the lower rotating wheel rotates and drives the lower rotating cutter and the lower positioning cutter to form a shearing operation; the drive block is rotatably installed inside the transmission housing, and the drive block controls the upper or lower rotating wheel to oscillate periodically; the lifting motor is installed on the transmission housing, and the lifting motor drives the integrated plate to move up and down, so that the upper or lower rotating wheel rubs against the drive block.

[0005] Furthermore, a drive motor is provided at the upper end of the transmission housing; a lower extension guide rod is connected to the lower side of the drive motor via a drive shaft, and a drive block is installed at the lower end of the lower extension guide rod to control the rotation of the drive block.

[0006] Furthermore, a positioning block is provided on one side of the inside of the transmission housing; the lower side of the drive block is rotatably engaged with the upper side of the positioning block via a rotating locking pin.

[0007] Furthermore, friction protrusions are installed on both sides of the drive block; the friction protrusions engage with the upper or lower rotating wheel for frictional transmission.

[0008] Furthermore, the upper inner end of the integrated plate is provided with an upper positioning rod, and the lower inner end of the integrated plate is provided with a lower positioning rod; the upper rotating wheel is rotatably engaged with the lower outer end of the upper positioning rod; the lower rotating wheel is rotatably engaged with the upper outer end of the lower positioning rod.

[0009] Furthermore, it also includes a pressure-resetting mechanism; a pressure-resetting mechanism is installed on the upper and lower sides of the integrated plate respectively. The upper rotating cutter is separated from the upper positioning cutter through the pressure-resetting mechanism located on the upper side, and the lower rotating cutter is separated from the lower positioning cutter through the pressure-resetting mechanism located on the lower side. The pressure-resetting mechanism includes a limiting rod, a pressure cylinder, a pressure spring, a positioning post, a front side plate, and a rear side plate. The front side plate and the rear side plate are installed on the inner side of the integrated plate, front and back respectively. A limiting rod is installed on the front side plate, and a positioning post is installed on the rear side plate. A pressure cylinder is sleeved on the positioning post, and a pressure spring is installed inside the pressure cylinder. The pressure spring presses the pressure cylinder outward. The upper rotating cutter and the lower rotating cutter are pressed outward by the pressure cylinder, so that the upper rotating cutter and the lower rotating cutter abut against the limiting rod.

[0010] Furthermore, an upper swing groove and a lower swing groove are formed on the integrated board; the upper rotating cutter passes through the upper swing groove, and the lower rotating cutter passes through the lower swing groove.

[0011] Furthermore, a lifting opening is provided on one side of the transmission box; the integrated plate is installed at the lifting opening; lifting blocks are provided on both sides of the integrated plate; drive slots are provided on both sides of the lifting opening; the lifting blocks slide up and down and are engaged with the drive slots; a lifting motor is installed on the upper side of the drive slot, and the lower side of the lifting motor is rotatably engaged with the drive slot through a connecting rod, and the connecting rod is threadedly connected to the lifting block.

[0012] Furthermore, the upper side of the integrated plate is provided with an upper guide post; the lower side of the integrated plate is provided with a lower guide post; the upper and lower guide channels are respectively opened at the top and bottom of the lifting opening; the upper guide post is slidably inserted into the upper guide channel; the lower guide post is slidably inserted into the lower guide channel.

[0013] The beneficial effects of this invention are as follows: 1. This invention uses a lifting motor to drive the integrated plate to move up and down, thus adjusting the vertical position of the upper or lower rotating wheel. This facilitates control over whether the upper or lower rotating wheel is in frictional contact with the drive block. When the upper rotating wheel is in frictional contact with the drive block, the drive block drives the upper rotating wheel to rotate, which in turn drives the upper rotating cutter to rotate. This achieves the cutting operation between the upper rotating cutter and the upper positioning cutter. When the drive block rotates and separates from the upper rotating wheel, the upper rotating cutter passes through the upper side... The pressure-reset mechanism separates and resets from the upper positioning cutter. This allows for repeated cutting when the drive block rotates and rubs against the upper rotating wheel, thus achieving stable periodic cutting. When the lower rotating wheel rubs against the drive block, the operation process follows the same pattern as the upper rotating wheel. This invention allows for timely switching, enabling the packaging filaments to be cut by either the upper or lower rotating cutter. This eliminates the need for prolonged downtime for maintenance and parts replacement during operation; simply switching the position of the upper or lower rotating wheel is sufficient, making it flexible and convenient to use.

[0014] 2. The present invention integrates an upper shredding assembly and a lower shredding assembly on an integrated plate, which transforms the original fixed shearing mechanism fixed on the transmission box into a movable structure that can be flexibly adjusted up and down, resulting in a clever and flexible structural design. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the lower rotating wheel and the driving block driven by friction in this invention.

[0016] Figure 2 This is a schematic diagram of the structure of the upper rotating wheel and the driving block driven by friction in this invention.

[0017] Figure 3 This is a side view of the integrated board and lifting motor of the present invention.

[0018] Figure 4 This is a top view of the pressure-resetting mechanism of the present invention.

[0019] Figure 5 For the present invention Figure 4 A schematic diagram showing the structure where the middle drive block is separated from the upper rotating wheel.

[0020] Figure 6 For the present invention Figure 5 Enlarged structural diagram of the middle limit rod and the pressure cylinder. Detailed Implementation

[0021] The invention will now be described in further detail with reference to the accompanying drawings.

[0022] like Figures 1 to 6 As shown, a blade-changing food packaging shredding structure includes a transmission housing 1, a drive block 2, an integrated plate 3, an upper shredding assembly 4, a lower shredding assembly 5, and a lifting motor 6. An integrated plate 3 is slidably mounted vertically on one side of the transmission housing 1. The upper shredding assembly 4 and the lower shredding assembly 5 are respectively mounted on the upper and lower sides of the integrated plate 3. The upper shredding assembly 4 includes an upper rotating wheel 41, an upper rotating cutter 42, and an upper positioning cutter 43. The lower shredding assembly 5 includes a lower rotating wheel 51, a lower rotating cutter 52, and a lower positioning cutter 53. The upper positioning cutter 43 and the lower positioning cutter 53 are respectively mounted vertically on the outer side of the integrated plate 3. The upper rotating cutter 42 and the lower rotating cutter 52 are respectively oscillatingly mounted vertically on the integrated plate 3. The inner end of the upper rotating cutter 42 is located inside the transmission housing 1 and connected to the upper rotating wheel 41, while the lower rotating cutter 5... The inner end of the cutter 52 is located inside the transmission housing 1 and connected to the lower rotating wheel 51; the upper rotating wheel 41 rotates and drives the upper rotating cutter 42 and the upper positioning cutter 43 to form a shearing operation; the lower rotating wheel 51 rotates and drives the lower rotating cutter 52 and the lower positioning cutter 53 to form a shearing operation; the drive block 2 is rotatably installed inside the transmission housing 1, and the drive block 2 controls the upper rotating wheel 41 or the lower rotating wheel 51 to swing periodically; the lifting motor 6 is installed on the transmission housing 1, and the lifting motor 6 drives the integrated plate 3 to move up and down, so that the upper rotating wheel 41 or the lower rotating wheel 51 rubs against the drive block 2.

[0023] like Figures 1 to 6 As shown, to facilitate the rotational drive of the drive block 2, a drive motor 7 is further provided at the upper end of the transmission housing 1; a lower extension guide rod 72 is connected to the lower side of the drive motor 7 via a drive shaft 71, and the lower end of the lower extension guide rod 72 is equipped with the drive block 2 and controls the rotation of the drive block 2. To improve the stable rotation of the drive block 2, a positioning block 8 is further provided on one side of the interior of the transmission housing 1; the lower side of the drive block 2 is rotatably engaged with the upper side of the positioning block 8 via a rotating locking post.

[0024] like Figures 1 to 6 As shown, in order to facilitate the frictional drive of the upper rotating wheel 41 or the lower rotating wheel 51 by the drive block 2, friction protrusions 21 are further installed on both sides of the drive block 2; the friction protrusions 21 are in frictional contact with the upper rotating wheel 41 or the lower rotating wheel 51 for transmission.

[0025] like Figures 1 to 6 As shown, in order to facilitate the stable rotation of the upper rotating wheel 41 and the lower rotating wheel 51, the upper inner side of the integrated plate 3 is provided with an upper positioning rod 31, and the lower inner side of the integrated plate 3 is provided with a lower positioning rod 32; the upper rotating wheel 41 is rotatably engaged with the lower outer end of the upper positioning rod 31; the lower rotating wheel 51 is rotatably engaged with the upper outer end of the lower positioning rod 32.

[0026] like Figures 1 to 6 As shown, to facilitate the reset of the upper rotating cutter 42 and the lower rotating cutter 52, a pressing reset mechanism 9 is further included; a pressing reset mechanism 9 is installed on the upper and lower sides of the integrated plate 3 respectively. The upper rotating cutter 42 is separated from the upper positioning cutter 43 through the pressing reset mechanism 9 located on the upper side, and the lower rotating cutter 52 is separated from the lower positioning cutter 53 through the pressing reset mechanism 9 located on the lower side; the pressing reset mechanism 9 includes a limiting rod 91, a pressing cylinder 92, a pressing spring 93, a positioning post 94, and a front side plate 9. 5. Rear side plate 96; The front side plate 95 and the rear side plate 96 are installed on the inner side of the integrated plate 3. A limiting rod 91 is installed on the front side plate 95, and a positioning post 94 is installed on the rear side plate 96. A pressing cylinder 92 is sleeved on the positioning post 94. A pressing spring 93 is installed inside the pressing cylinder 92. The pressing spring 93 presses the pressing cylinder 92 outward. The upper rotating cutter 42 and the lower rotating cutter 52 press outward through the pressing cylinder 92, so that the upper rotating cutter 42 and the lower rotating cutter 52 abut against the limiting rod 91.

[0027] like Figures 1 to 6 As shown, in order to facilitate the swinging of the upper rotating cutter 42 and the lower rotating cutter 52, the integrated plate 3 is further provided with an upper swing groove 33 and a lower swing groove 34; the upper rotating cutter 42 passes through the upper swing groove 33, and the lower rotating cutter 52 passes through the lower swing groove 34.

[0028] like Figures 1 to 6 As shown, in order to facilitate the lifting motor 6 to drive the integrated plate 3 up and down, the transmission box 1 is further provided with a lifting opening 11 on one side; the integrated plate 3 is installed at the lifting opening 11; lifting blocks 35 are provided on both sides of the integrated plate 3; driving slots 12 are provided on both sides of the lifting opening 11; the lifting blocks 35 are slidably engaged with the driving slots 12; a lifting motor 6 is installed on the upper side of the driving slots 12, and the lower side of the lifting motor 6 is rotatably engaged with the driving slots 12 through a connecting rod 61, and the connecting rod 61 is threadedly connected to the lifting block 35.

[0029] like Figures 1 to 6 As shown, in order to improve the smoothness of the lifting of the integrated plate 3, the upper side of the integrated plate 3 is provided with an upper guide post 36; the lower side of the integrated plate 3 is provided with a lower guide post 37; the upper guide channel 13 and the lower guide channel 14 are respectively opened at the top and bottom of the lifting opening 11; the upper guide post 36 is slidably inserted into the upper guide channel 13; the lower guide post 37 is slidably inserted into the lower guide channel 14.

[0030] This invention uses a lifting motor 6 to drive the integrated plate 3 to move up and down, thus adjusting the vertical position of the upper rotating wheel 41 or the lower rotating wheel 51. This facilitates control over whether the upper rotating wheel 41 or the lower rotating wheel 51 is in frictional contact with the driving block 2. When the upper rotating wheel 41 is in frictional contact with the driving block 2, the driving block 2 drives the upper rotating wheel 41 to rotate, which in turn drives the upper rotating cutter 42 to rotate. This enables the upper rotating cutter 42 to perform the cutting operation with the upper positioning cutter 43. When the driving block 2 rotates and separates from the upper rotating wheel 41, the upper rotating cutter 42 is then in operation. The upper positioning cutter 43 is separated and reset by the upper pressure reset mechanism located on the upper side. When the drive block 2 rotates and rubs against the upper rotating wheel 41 again, it can be cut again, thus achieving stable periodic cutting. When the lower rotating wheel 51 rubs against the drive block 2, the operation process is the same as the upper rotating wheel 41. In this way, the invention can be switched in time, so that the packaging filament can be cut by the upper rotating cutter 42 or the lower rotating cutter 52. Thus, there is no need for long-term downtime maintenance and replacement of parts during operation. Just switch the position of the upper rotating wheel 41 or the lower rotating wheel 51. It is flexible and convenient to use.

[0031] The present invention integrates an upper shredding assembly 4 and a lower shredding assembly 5 on an integrated plate 3, which transforms the fixed shearing mechanism that was originally fixed on the transmission box 1 into a movable structure that can be flexibly adjusted up and down. The structural design is ingenious and flexible.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A replaceable blade food packaging shredding structure, characterized in that, The system includes a transmission housing, a drive block, an integrated plate, an upper slicing assembly, a lower slicing assembly, and a lifting motor. An integrated plate is slidably mounted vertically on one side of the transmission housing. The upper and lower slicing assemblies are respectively mounted on the upper and lower sides of the integrated plate. The upper slicing assembly includes an upper rotating wheel, an upper rotating cutter, and an upper positioning cutter. The lower slicing assembly includes a lower rotating wheel, a lower rotating cutter, and a lower positioning cutter. The upper and lower positioning cutters are respectively mounted vertically on the outer side of the integrated plate. The upper and lower rotating cutters are respectively pivotally mounted vertically on the upper and lower sides of the integrated plate. The inner end of the upper rotating cutter is located inside the transmission housing and connected to the upper rotating wheel, while the lower rotating cutter… The inner end of the cutter is located inside the transmission housing and connected to the lower rotating wheel; the upper rotating wheel rotates and drives the upper rotating cutter and the upper positioning cutter to form a shearing operation; the lower rotating wheel rotates and drives the lower rotating cutter and the lower positioning cutter to form a shearing operation; the drive block is rotatably installed inside the transmission housing, and the drive block controls the upper or lower rotating wheel to oscillate periodically; the lifting motor is installed on the transmission housing, and the lifting motor drives the integrated plate to move up and down, so that the upper or lower rotating wheel rubs against the drive block.

2. The blade-changing food packaging shredding structure according to claim 1, characterized in that, The upper end of the transmission housing is equipped with a drive motor; the lower side of the drive motor is connected to a lower extension guide rod via a drive shaft, and a drive block is installed at the lower end of the lower extension guide rod to control the rotation of the drive block.

3. The blade-changing food packaging shredding structure according to claim 1, characterized in that, A positioning block is provided on one side of the inside of the transmission housing; the lower side of the drive block is rotatably engaged with the upper side of the positioning block by a rotating locking pin.

4. The blade-changing food packaging shredding structure according to claim 1, characterized in that, Friction protrusions are installed on both sides of the drive block; the friction protrusions are in frictional contact with the upper or lower rotating wheel for transmission.

5. The blade-changing food packaging shredding structure according to claim 1, characterized in that, The upper inner side of the integrated plate is provided with an upper positioning rod, and the lower inner side of the integrated plate is provided with a lower positioning rod; the upper rotating wheel is rotatably engaged with the lower outer end of the upper positioning rod; the lower rotating wheel is rotatably engaged with the upper outer end of the lower positioning rod.

6. The blade-changing food packaging shredding structure according to claim 1, characterized in that, It also includes a pressure-resetting mechanism; a pressure-resetting mechanism is installed on the upper and lower sides of the integrated plate respectively. The upper rotating cutter is separated from the upper positioning cutter through the pressure-resetting mechanism located on the upper side, and the lower rotating cutter is separated from the lower positioning cutter through the pressure-resetting mechanism located on the lower side. The pressure-resetting mechanism includes a limiting rod, a pressure cylinder, a pressure spring, a positioning post, a front side plate, and a rear side plate. The front side plate and the rear side plate are installed on the inner side of the integrated plate, front and back respectively. A limiting rod is installed on the front side plate, and a positioning post is installed on the rear side plate. A pressure cylinder is sleeved on the positioning post, and a pressure spring is installed inside the pressure cylinder. The pressure spring presses the pressure cylinder outward. The upper rotating cutter and the lower rotating cutter press outward through the pressure cylinder, so that the upper rotating cutter and the lower rotating cutter abut against the limiting rod.

7. The blade-changing food packaging shredding structure according to claim 1, characterized in that, The integrated board has an upper swing groove and a lower swing groove; the upper rotating cutter passes through the upper swing groove, and the lower rotating cutter passes through the lower swing groove.

8. The blade-changing food packaging shredding structure according to claim 1, characterized in that, The transmission box has a lifting opening on one side; the integrated plate is installed at the lifting opening; lifting blocks are provided on both sides of the integrated plate; drive slots are provided on both sides of the lifting opening; the lifting blocks slide up and down and are engaged with the drive slots; a lifting motor is installed on the upper side of the drive slot, and the lower side of the lifting motor is rotatably engaged with the drive slot through a connecting rod, and the connecting rod is threadedly connected to the lifting block.

9. The blade-changing food packaging shredding structure according to claim 8, characterized in that, The integrated plate has an upper guide post on its upper side and a lower guide post on its lower side; the lifting opening has an upper guide channel and a lower guide channel respectively on its upper and lower sides; the upper guide post is slidably inserted into the upper guide channel; the lower guide post is slidably inserted into the lower guide channel.

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