Edge trimming device for corrugated board production

Abstract

The application discloses an edge trimming device for corrugated board production and relates to the technical field of cutting.The edge trimming device comprises a rack, a first sliding frame is horizontally and slidingly connected to the rack, a push frame is horizontally and slidingly connected to the first sliding frame, a first clamping tooth is fixedly connected to one side of the rack close to the push frame, a sliding tooth is horizontally and slidingly connected to one side of the first sliding frame close to the first clamping tooth, the sliding tooth is movable and clamped with the first clamping tooth, and the first sliding frame is locked when the push frame is pushed.The first sliding frame, the push frame and other components are arranged, the distance and the cutting angle of the corrugated board cutting are quickly adjusted, the parallelism during the cutting of the corrugated board is ensured through the limiting cooperation of the first clamping tooth and the sliding tooth when the corrugated board is cut, and the phenomenon that the cutting edges are not uniform due to hand shaking during the cutting is avoided.

Description

Technical Field

[0001] This invention relates to the field of cutting technology, and more particularly to an edge trimming device for corrugated cardboard production. Background Technology

[0002] In order to ensure neatness and aesthetics during the production and processing of corrugated cardboard, it is usually necessary to align the corrugated cardboard and then cut it using a cutting machine or a hand knife, thereby ensuring that the edges of the corrugated cardboard remain intact after cutting.

[0003] During the process of cutting and trimming the edges of corrugated cardboard, it is often necessary to constantly adjust the position and angle of the corrugated cardboard to ensure that the cutting angle and cutting distance meet the cutting conditions. In this process, a lot of time is usually spent calibrating the corrugated cardboard. When cutting it manually, it is difficult to ensure the parallelism between the corrugated cardboard after cutting, which can easily lead to the edge angles of the corrugated cardboard being difficult to align.

[0004] Therefore, the present invention designs an edge trimming device for corrugated cardboard production. Summary of the Invention

[0005] To overcome the drawbacks of the time-consuming process of calibrating corrugated cardboard and the difficulty in ensuring parallelism between cut corrugated cardboard pieces during manual cutting, which can easily lead to misalignment of the cut edges, this invention provides an edge trimming device for corrugated cardboard production.

[0006] An edge trimming device for corrugated cardboard production includes a frame, a first sliding frame horizontally slidably connected to the frame, a pusher horizontally slidably connected to the first sliding frame, a second sliding frame fixedly connected to the second sliding frame, a protective cover for protecting the cutter fixedly connected to the second sliding frame, a first locking tooth fixedly connected to the side of the frame near the pusher, and a sliding tooth horizontally slidably connected to the side of the first sliding frame near the first locking tooth. The sliding tooth moves and engages with the first locking tooth to lock the first sliding frame when the pusher is pushed. The frame is provided with a pushing component for moving the sliding tooth toward the first locking tooth.

[0007] Furthermore, the pushing assembly includes a rotating block, which is rotatably connected to the first sliding frame. The push frame is in contact with the rotating block. The first sliding frame is vertically slidably connected to a pushing rod. The sliding teeth are limited to the pushing rod through an inclined groove, and the pushing rod is limited to the rotating block through a horizontal groove.

[0008] Furthermore, the edge trimming device for corrugated cardboard production also includes a first screw symmetrically distributed along the frame, the first screw being rotatably connected to the frame and threadedly connected to the first sliding frame, and a fixing block symmetrically distributed along the frame being fixedly connected to the frame, the fixing block being horizontally slidably connected to a rubber plate, the rubber plate being in frictional engagement with the adjacent first screw.

[0009] Furthermore, the edge trimming device for corrugated cardboard production also includes a second screw corresponding to the fixing block, the second screw being threadedly connected to the corresponding fixing block, and the second screw being rotatably connected to the adjacent rubber sheet.

[0010] Furthermore, the edge trimming device for corrugated cardboard production also includes at least two sliders that are slidably connected to the pusher.

[0011] Furthermore, the edge trimming device for corrugated cardboard production also includes a rubber strip, which is fixedly connected to the first sliding frame. The push frame is fixedly connected to a limit ring, which is rotatably connected to a connecting shaft. The connecting shaft is fixedly connected to a rubber wheel, which is in frictional engagement with the rubber strip.

[0012] Furthermore, the edge trimming device for corrugated cardboard production also includes a second locking tooth, which is rotatably connected to the connecting shaft, engages with the limiting ring, and is fixedly connected to the connecting shaft by springs symmetrically distributed along the second locking tooth.

[0013] Furthermore, the edge trimming device for corrugated cardboard production also includes an indicator block, which is fixedly connected to the protective cover. The frame is fixedly connected to a mirror-distributed scale plate, and the indicator block points to the adjacent scale plate.

[0014] Furthermore, the edge trimming device for corrugated cardboard production also includes a third screw, which is rotatably connected to the frame, and the second sliding frame is slidably connected to the frame, with the third screw threadedly connected to the second sliding frame.

[0015] Furthermore, the edge trimming device for corrugated cardboard production also includes a handle, which is fixedly connected to the third screw.

[0016] The beneficial effects are:

[0017] This invention enables rapid adjustment of the cutting distance and angle of corrugated cardboard by setting up components such as the first sliding frame and the pushing frame. When cutting corrugated cardboard, the parallelism of the cutting is ensured by the limiting cooperation between the first locking tooth and the sliding tooth, avoiding the phenomenon of uneven cutting edges caused by hand shaking during cutting.

[0018] This invention adjusts the resistance to the backward movement of the first sliding frame by rotating the second adjusting screw, thereby slowing down the backward movement of the first sliding frame and preventing the operator from pushing the first sliding frame backward too quickly, which could lead to excessive backward movement.

[0019] This invention, by setting two movable and adjustable sliders, can satisfy the need to push corrugated cardboard of different lengths to the right, and by moving the position of the sliders, can ensure that when pushing the corrugated cardboard to the right for trimming, the pusher and the movable slider can avoid the cutting machine, preventing the cutting machine from cutting the pusher and the movable slider when the trimming is about to be completed.

[0020] When the pusher is pushed to the right at a speed exceeding the normal range, the second locking tooth will lock the limit ring, preventing the connecting shaft and rubber wheel from rotating. The friction between the rubber wheel and the rubber strip increases, achieving the effect of quickly slowing down the pusher and preventing the corrugated cardboard from sliding off the first sliding frame at will when pushed to the right too fast, thus affecting the trimming accuracy.

[0021] When corrugated cardboard of the same length is cut in batches, this invention converts the position of the cutting machine to be adjusted uniformly, instead of controlling the position of the corrugated cardboard by pushing the first sliding frame. By simply pushing the push frame to the right, batch trimming of corrugated cardboard of the same length can be achieved, and the trimming is more precise, stable and flexible. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the slider, pusher, and rubber wheel of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the components of the present invention, including the second sliding frame, the cutting machine, and the protective cover.

[0025] Figure 4 This is a three-dimensional structural diagram of the pusher, the first locking tooth, and the sliding tooth components of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the first locking tooth, rotating block, and push rod components of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the sliding teeth, rotating block, and push rod components of the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the frame, first screw, and slider components of the present invention.

[0029] Figure 8This is a three-dimensional structural diagram of the first screw, second screw, and other components of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the pusher and slider components of the present invention.

[0031] Figure 10 This is a three-dimensional structural diagram of the first sliding frame, push frame, and rubber strip of the present invention.

[0032] Figure 11 This is a three-dimensional structural diagram of the limiting ring, connecting shaft, and rubber wheel components of the present invention.

[0033] Figure 12 This is a three-dimensional structural diagram of the connecting shaft, rubber wheel, and second locking tooth components of the present invention.

[0034] Figure 13 This is a three-dimensional structural diagram of the protective cover, indicator block, and scale plate of the present invention.

[0035] Figure 14 This is a three-dimensional structural diagram of the scale plate, third screw, and handle components of the present invention.

[0036] Component names and serial numbers in the diagram: 101_Frame, 102_First sliding frame, 103_Push frame, 104_Second sliding frame, 105_Cutter, 106_Protective cover, 107_First locking tooth, 108_Sliding tooth, 201_Rotating block, 202_Push rod, 301_First screw, 302_Rubber plate, 303_Second screw, 304_Fixing block, 401_Slider, 501_Rubber strip, 502_Limiting ring, 503_Connecting shaft, 504_Rubber wheel, 505_Second locking tooth, 506_Spring, 601_Indicator block, 602_Scale plate, 701_Third screw, 702_Handle. Detailed Implementation

[0037] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Example 1: An edge trimming device for corrugated cardboard production, combined with an attached... Figure 1 To be continued Figure 4The device includes a frame 101 for placing corrugated cardboard. A first sliding frame 102 is slidably connected to the top of the frame 101 in the front-to-back direction. A push frame 103 is slidably connected to the first sliding frame 102 in the left-to-right direction via a slide groove. A second sliding frame 104 is provided on the rear right side of the frame 101. A cutter 105 is fixedly connected to the second sliding frame 104. A protective cover 106 for protecting the blade of the cutter 105 is fixedly connected to the second sliding frame 104. A first locking tooth 107 is fixedly connected to the left side of the frame 101. A sliding tooth 108 is horizontally slidably connected to the side of the first sliding frame 102 near the first locking tooth 107. The sliding tooth 108 moves to the left and engages with the first locking tooth 107.

[0039] Combined with appendix Figure 5 To be continued Figure 6 It also includes a rotating block 201, which is rotatably connected to the first sliding frame 102. The bottom front side of the push frame 103 contacts the top of the rotating block 201. The left side of the first sliding frame 102 is slidably connected to a push rod 202 in the up-down direction. The sliding tooth 108 is limited to the push rod 202 through an inclined groove. The push rod 202 is limited to the rotating block 201 through a horizontal groove, so that the rotating block 201 is pressed by the push rod 202 to slide towards the side closer to the first locking tooth 107.

[0040] First, place the corrugated cardboard to be trimmed on top of the frame 101, with the side of the cardboard to be trimmed facing backward and the front side of the cardboard pressed against the back side of the first sliding frame 102. Push the first sliding frame 102 backward along the frame 101. The pusher 103 moves backward synchronously with the first sliding frame 102. The corrugated cardboard is pushed backward by the first sliding frame 102 until the back side of the cardboard moves to the horizontal line where the blade of the cutting machine 105 is located. Then, push the pusher 103 to the right along the first sliding frame 102, so that the corrugated cardboard moves closer to the cutting machine 105, thereby completing the trimming of the corrugated cardboard.

[0041] During the above process, when the first sliding frame 102 is pushed backward along the frame 101, the sliding tooth 108, the rotating block 201, and the push rod 202 move backward synchronously. When the push frame 103 is pushed to the right along the first sliding frame 102, the push frame 103 will squeeze the rotating block 201 to swing. The rotating block 201 will squeeze the sliding tooth 108 to slide towards the side close to the first locking tooth 107 through the push rod 202, so that the sliding tooth 108 is locked into the first locking tooth 107. In this way, the first sliding frame 102 is fixed during trimming, so that the first sliding frame 102 can stably limit the corrugated cardboard and prevent deviations from occurring during trimming due to hand shaking when pushing the corrugated cardboard to the right.

[0042] After the trimming is completed, the pusher 103 is pulled back to the left along the first sliding frame 102, and then the first sliding frame 102 is pulled forward along the frame 101. During this process, when the pusher 103 is pushed to the left along the first sliding frame 102, the pusher 103 will squeeze the rotating block 201 and swing in the opposite direction. The rotating block 201 squeezes the sliding tooth 108 through the push rod 202 and slides it away from the first locking tooth 107, so that the sliding tooth 108 releases the first locking tooth 107 and releases the limit on the first sliding frame 102. When the first sliding frame 102 is pushed forward along the frame 101, the pusher 103, the sliding tooth 108, the rotating block 201 and the push rod 202 move forward synchronously.

[0043] In summary, the arrangement of components such as the first sliding frame 102 and the push frame 103 enables rapid adjustment of the cutting distance and angle of the corrugated cardboard. When cutting the corrugated cardboard, the limiting cooperation between the first locking tooth 107 and the sliding tooth 108 ensures the parallelism of the corrugated cardboard during cutting, avoiding uneven cutting edges caused by hand shaking during cutting.

[0044] Example 2: Based on Example 1: combined with Appendix Figure 7 To be continued Figure 8 It also includes a first screw 301 symmetrically distributed along the left and right sides of the frame 101. The first screw 301 is rotatably connected to the upper part of the frame 101 and threadedly connected to the first sliding frame 102. A fixing block 304 symmetrically distributed along the left and right sides of the frame 101 is fixedly connected to the upper front side of the frame 101. A rubber plate 302 is slidably connected inside the fixing block 304 in the left and right direction. The rubber plate 302 is in frictional engagement with the adjacent first screw 301. A second screw 303 is threadedly connected inside the fixing block 304 and rotatably connected to the adjacent rubber plate 302.

[0045] If the operator pushes the first sliding frame 102 backward too quickly, it may cause excessive backward movement. In this case, the position of the corrugated cardboard needs to be readjusted so that the cardboard moves backward to the cutting machine 105, which is troublesome. Therefore, it is necessary to appropriately increase the resistance of the first sliding frame 102 backward movement according to actual needs and slow down the backward movement speed of the first sliding frame 102. The specific operation of adjusting the resistance is as follows:

[0046] By rotating the second screw 303, the rubber plate 302 moves closer to the first screw 301, adjusting the tightness between the rubber plate 302 and the first screw 301, thereby adjusting the friction between them. The tighter the friction, the greater the friction, and the more difficult it is for the first sliding frame 102 to drive the first screw 301 to rotate when it moves backward. In other words, the greater the resistance of the first screw 301 to the first sliding frame 102, the slower the first sliding frame 102 moves backward. This allows the corrugated cardboard to move more accurately to the cutting machine 105.

[0047] Combined with appendix Figure 9 It also includes two sliders 401, which are slidably connected to the pusher 103.

[0048] To ensure that the pusher 103 can avoid the cutter 105 when pushing the corrugated cardboard to the right for trimming, and to prevent the cutter 105 from cutting the pusher 103 when the trimming is about to be completed, the bottom of the pusher 103 has an inverted U-shaped avoidance groove. At the same time, in order to accommodate corrugated cardboard of different lengths, two movable and adjustable sliders 401 are provided. By pushing shorter corrugated cardboard through the sliders 401, it can not only meet the needs of pushing corrugated cardboard of different lengths to the right, but also avoid the cutter 105 by moving the position of the sliders 401.

[0049] Combined with appendix Figure 10 To be continued Figure 12 It also includes a rubber strip 501, which is fixedly connected to the lower rear side of the first sliding frame 102. A limit ring 502 is fixedly connected to the front of the push frame 103. A connecting shaft 503 is rotatably connected inside the limit ring 502. A rubber wheel 504 is fixedly connected to the bottom end of the connecting shaft 503. The rubber wheel 504 and the rubber strip 501 are in frictional engagement. A second locking tooth 505 is rotatably connected to the outer side of the connecting shaft 503 at an eccentric position. The second locking tooth 505 will deflect to engage with the limit ring 502 under the action of centrifugal force. A spring 506 symmetrically distributed along the upper and lower sides of the second locking tooth 505 is fixedly connected between the second locking tooth 505 and the connecting shaft 503.

[0050] To prevent the corrugated cardboard from sliding off the first sliding frame 102 due to excessive speed when pushing it to the right for trimming, thus affecting the trimming accuracy, it is necessary to slow down the push frame 103. The specific operation is as follows:

[0051] When the pusher 103 moves to the right at a normal speed, the limiting ring 502, connecting shaft 503, and rubber wheel 504 move to the right synchronously. The rubber wheel 504 rolls along the rubber strip 501. However, when the pusher 103 is pushed to the right at a speed exceeding the normal speed, the second locking tooth 505 will swing towards the side closer to the limiting ring 502 under the action of centrifugal force until it locks the limiting ring 502. The spring 506 is stretched, so the connecting shaft 503 can no longer rotate, thus preventing the rubber wheel 504 from rotating. The friction between the rubber wheel 504 and the rubber strip 501 increases, achieving the effect of quickly decelerating the pusher 103. When the normal speed is restored, the spring 506 resets, causing the second locking tooth 505 to reset and no longer lock the limiting ring 502. The connecting shaft 503 and the rubber wheel 504 resume their rotation.

[0052] Example 3: Based on Example 2, combined with Appendix Figure 13 To be continued Figure 14It also includes an indicator block 601, which is fixedly connected to the right side of the protective cover 106. A scale plate 602 with a left-right mirror distribution is fixedly connected to the top right side of the frame 101. The indicator block 601 points to the scale plate 602 on the right side. The two scale plates 602 are located on the left and right sides of the second sliding frame 104, respectively.

[0053] Combined with appendix Figure 13 To be continued Figure 14 It also includes a third screw 701, which is rotatably connected to the right side of the frame 101. The second sliding frame 104 is slidably connected to the frame 101. The third screw 701 is threadedly connected to the second sliding frame 104. A handle 702 is fixedly connected to the front end of the third screw 701.

[0054] When a batch of corrugated cardboard pieces are cut to the same length, if the first sliding frame 102 is frequently moved back and forth to move each piece of corrugated cardboard to the trimming position for trimming, it cannot be guaranteed that the pieces will be moved to the same position precisely each time. To further improve the cutting accuracy of this batch of corrugated cardboard and to simplify the operation, the position of the cutting machine 105 can be adjusted uniformly instead of controlling the position of the corrugated cardboard by pushing the first sliding frame 102. The specific operation is as follows:

[0055] After placing the corrugated cardboard directly on the frame 101, skip the operation of pushing the first sliding frame 102 and directly push the pusher 103 to the right, so that the rear edge of the corrugated cardboard is aligned with the scale on the left scale plate 602. Manually turn the handle 702, thereby driving the third screw 701 to rotate, which in turn drives the second sliding frame 104, the cutter 105, the protective cover 106, and the indicator block 601 to move forward or backward as a whole. At the same time, by observing the scale on the right scale plate 602 pointed to by the indicator block 601, make it correspond to the scale aligned on the left scale plate 602. After uniform adjustment, you only need to keep pushing the pusher 103 to the right to achieve batch trimming of corrugated cardboard of the same length, and the trimming is more precise, and the trimming stability and flexibility are also higher.

[0056] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. An edge trimming device for corrugated cardboard production, comprising a frame (101), characterized in that, The frame (101) is horizontally slidably connected to a first sliding frame (102), the first sliding frame (102) is horizontally slidably connected to a push frame (103), the frame (101) is provided with a second sliding frame (104), the second sliding frame (104) is fixedly connected to a cutting machine (105), the second sliding frame (104) is fixedly connected to a protective cover (106) for protecting the cutting machine (105), the side of the frame (101) near the push frame (103) is fixedly connected to a first locking tooth (107), the side of the first sliding frame (102) near the first locking tooth (107) is horizontally slidably connected to a sliding tooth (108), the sliding tooth (108) moves and engages with the first locking tooth (107) to lock the first sliding frame (102) when the push frame (103) is pushed, the frame (101) is provided with a pushing component for moving the sliding tooth (108) toward the side of the first locking tooth (107); The pushing assembly includes a rotating block (201), which is rotatably connected to the first sliding frame (102). The push frame (103) is in contact with the rotating block (201). The first sliding frame (102) is vertically slidably connected to a push rod (202). The sliding tooth (108) is limited to the push rod (202) through an inclined groove. The push rod (202) is limited to the rotating block (201) through a horizontal groove. The edge trimming device for corrugated cardboard production also includes a rubber strip (501), which is fixedly connected to the first sliding frame (102). The push frame (103) is fixedly connected to a limiting ring (502), which is rotatably connected to a connecting shaft (503). The connecting shaft (503) is fixedly connected to a rubber wheel (504), which is in frictional engagement with the rubber strip (501). The edge trimming device for corrugated cardboard production also includes a second tooth (505), which is rotatably connected to the connecting shaft (503). The second tooth (505) cooperates with the limiting ring (502), and a spring (506) symmetrically distributed along the second tooth (505) is fixedly connected between the second tooth (505) and the connecting shaft (503).

2. The edge trimming device for corrugated cardboard production according to claim 1, characterized in that, The edge trimming device for corrugated cardboard production also includes a first screw (301) symmetrically distributed along the frame (101), the first screw (301) being rotatably connected to the frame (101), the first screw (301) being threadedly connected to the first sliding frame (102), the frame (101) being fixedly connected to a fixing block (304) symmetrically distributed along the frame (101), the fixing block (304) being horizontally slidably connected to a rubber plate (302), the rubber plate (302) being in frictional engagement with the adjacent first screw (301).

3. The edge trimming device for corrugated cardboard production according to claim 2, characterized in that, The edge trimming device for corrugated cardboard production also includes a second screw (303) corresponding to the fixing block (304), the second screw (303) being threadedly connected to the corresponding fixing block (304), and the second screw (303) being rotatably connected to the adjacent rubber plate (302).

4. The edge trimming device for corrugated cardboard production according to claim 3, characterized in that, The edge trimming device for corrugated cardboard production also includes at least two sliders (401) that are slidably connected to the pusher (103).

5. The edge trimming device for corrugated cardboard production according to claim 4, characterized in that, The edge trimming device for corrugated cardboard production also includes an indicator block (601), which is fixedly connected to the protective cover (106). The frame (101) is fixedly connected to a mirror-distributed scale plate (602), and the indicator block (601) points to the adjacent scale plate (602).

6. The edge trimming device for corrugated cardboard production according to claim 5, characterized in that, The edge trimming device for corrugated cardboard production also includes a third screw (701), which is rotatably connected to the frame (101), and the second sliding frame (104) is slidably connected to the frame (101). The third screw (701) is threadedly connected to the second sliding frame (104).

7. The edge trimming device for corrugated cardboard production according to claim 6, characterized in that, The edge trimming device for corrugated cardboard production also includes a handle (702), which is fixedly connected to the third screw (701).

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