Novel paperboard line cutting and grooving machine

Abstract

The utility model relates to a novel paperboard line cutting and grooving machine which is convenient to place paperboards and adjust a line cutting tool at the same time. The novel paperboard line cutting and grooving machine comprises a line cutting device and a grooving device, the line cutting device is used for cutting lines on one face of a paperboard, and the grooving device is used for grooving the other face of the paperboard; the thread cutting device comprises a thread cutting tool and a thread cutting compression roller which are matched for thread cutting; the grooving device comprises a feeding conveying mechanism and a primary grooving mechanism; the automatic grooving machine is characterized in that the feeding end of the primary grooving mechanism is located on the lower portion, the discharging end of the feeding conveying mechanism is connected with the feeding end of the primary grooving mechanism in a conveying mode, the feeding end of the feeding conveying mechanism is connected with the thread cutting device in a conveying mode, and the thread cutting tool is located above the thread cutting compression roller. According to the novel paperboard line cutting and grooving machine, the installation position of the line cutting device can be lower, a worker can place a paperboard conveniently, and meanwhile the position of a line cutting tool can be adjusted conveniently.

Description

Technical Field

[0001] The utility model relates to a paperboard slotting machine, in particular to a bidirectional paperboard cutting slotting machine which can cut paperboard and perform longitudinal and transverse slotting. Background Art

[0002] The cutting line slotting machine is a device that cuts off the four corners of the cardboard. Fig. 9 As shown, the process is to first cut the four corners on one side of the cardboard, and then groove the other side of the cardboard. Since the groove is to cut a V-shaped groove on the other side of the cardboard that coincides with the cut line, the four corners of the cardboard fall off due to the overlap of the cut line and the V-shaped groove. The cutting line slotting machine generally includes a cutting line device and a slotting device. The cutting line device completes the cutting line on one side of the cardboard, and the primary slotting mechanism and the secondary slotting mechanism of the slotting device successively complete the horizontal slotting and the longitudinal slotting on the other side of the cardboard. The cutting line device of the existing cutting line slotting machine is connected with the feed port of the primary slotting mechanism through the feeding conveying mechanism. However, the feed port of the existing primary slotting mechanism is located at the top and the discharge port is located at the bottom. Therefore, the cutting line device must also be installed at the same height as the feed port of the primary slotting mechanism. There are two problems with this structure: First, due to the high installation height (to the chest position), it is inconvenient for workers to put the cardboard on the cutting line conveying mechanism of the cutting line device, especially when the specifications of the processed cardboard become larger, the weight of the cardboard becomes heavier, and it will be very tiring to carry it all day. Second, the secant device includes a secant cutter and a secant roller that match the secant line. With the existing structure, the secant cutter must be installed below the secant roller (if the feed port of the primary slotting mechanism is located at the top, the primary slotting position must be on the upper surface of the cardboard, and the secant line must be on the lower surface of the cardboard, then the secant cutter is also located below the secant roller). Since it is blocked by the secant roller, it is very inconvenient to adjust the secant cutter (the secant cutter needs to be adjusted frequently to meet the processing requirements of different specifications). In addition, the blade needs to be disassembled and replaced with a new blade after working for a certain period of time. When the blade is in the lower position, it is not conducive to the replacement of the blade due to the lack of replacement space. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model innovatively provides a new cardboard cutting and grooving machine which is more convenient for workers to place cardboards and adjust cutting cutters.

[0004] This new cardboard cutting and slotting machine includes a cutting device and a slotting device. The cutting device is used to cut one side of the cardboard, and the slotting device is used to slot the other side of the cardboard. The cutting device includes a cutting conveying mechanism and a cutting cutter and a cutting pressure roller that cooperate with the cutting. The slotting device includes a feeding conveying mechanism and a primary slotting mechanism. The characteristic is that the feeding end of the primary slotting mechanism is located at the bottom, the discharging end of the feeding conveying mechanism is connected with the feeding end of the primary slotting mechanism for conveying, the feeding end of the feeding conveying mechanism is connected with the cutting device for conveying, and the cutting cutter is located above the cutting pressure roller.

[0005] The secant cutter is installed on the secant rotating shaft, and the secant rotating shaft is transmission-connected with a secant power source for driving the secant rotating shaft to rotate.

[0006] The secant rotating shaft is connected with a passive friction wheel, the secant power source is in transmission connection with the transmission roller, and a friction wheel is provided between the transmission roller and the passive friction wheel.

[0007] The secant tool comprises a secant tool seat, which is sleeved on the secant shaft and provided with a positioning block; a groove extending along the axial direction is provided on the surface of the secant shaft; the positioning block is located in the groove of the secant shaft; the secant tool seat can be moved and adjusted along the axial direction on the secant shaft.

[0008] An adjusting beam parallel to the secant rotating shaft is arranged above the secant rotating shaft, a movable and adjustable adjusting slide is arranged on the adjusting beam, the adjusting slide is connected to the supporting seat, and the supporting seat is connected to the secant knife seat through a bearing.

[0009] The adjusting sliding seat is connected with the supporting seat through a fisheye bearing.

[0010] The secant knife comprises a transverse secant knife and a longitudinal secant knife, both of which are mounted on a secant knife seat; the longitudinal secant knife is a semicircular knife, the transverse secant knife is a flat knife, and one end of the blade of the longitudinal secant knife is close to one end of the blade of the transverse secant knife.

[0011] The feeding end of the wire cutting device is also provided with another wire cutting device, and the two wire cutting devices are connected for transportation, and the wire cutting tool of one wire cutting device includes a transverse wire cutting knife to realize transverse wire cutting, and the wire cutting tool of the other wire cutting device includes a longitudinal wire cutting knife to realize longitudinal wire cutting, and both the transverse wire cutting knife and the longitudinal wire cutting knife are semicircular knives.

[0012] The discharging end of the primary slotting mechanism is located at the top, the discharging end of the primary slotting mechanism is connected with the upper feeding mechanism for conveying, the conveying direction of the upper feeding mechanism intersects with the discharging direction of the primary slotting mechanism, the discharging end of the upper feeding mechanism is connected with the feeding end of the secondary slotting mechanism for conveying, the feeding end of the secondary slotting mechanism is located at the upper end, and the discharging end of the secondary slotting mechanism is located at the lower end.

[0013] The secant pressure roller is rotatably mounted on a lifting and adjusting block, and the lifting and adjusting block is movably mounted on a machine base, and an adjusting screw is mounted on the machine base, and the adjusting screw is threadedly connected to the lifting and adjusting block.

[0014] The primary slotting mechanism comprises a slotting roller, a slotting tool, a belt and a tensioning roller. The belt acts on the slotting roller under the guidance of the tensioning roller, and the slotting tool is located on one side of the slotting roller.

[0015] According to the novel cardboard cutting and slotting machine provided by the utility model, the installation position of the cutting device can be lowered, which is convenient for workers to place cardboard and convenient for adjusting the position of the cutting tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the entire machine of the utility model;

[0017] Figure 2 is a three-dimensional diagram of a cutting device;

[0018] Figure 3 It is a three-dimensional diagram of a primary slotting mechanism;

[0019] Figure 4 A partial diagram of the cutting device Figure 1 ;

[0020] Figure 5 A partial diagram of the cutting device Figure 2 ;

[0021] Figure 6 A partial diagram of the cutting device Figure 3 ;

[0022] Figure 7 for Figure 2 A partial enlarged view of point D in the middle;

[0023] Figure 8 This is the process diagram of semicircular knife cutting line;

[0024] Fig. 9 This is a schematic diagram of the cutting and grooving principle of the utility model. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, this novel cardboard cutting and slotting machine includes a cutting device 1 and a slotting device, such as Fig. 9 As shown, the cutting device 1 is used to cut the four corners of one side of the cardboard, and the slotting device is used to slot the other side of the cardboard horizontally and vertically, thus forming a finished cardboard product for subsequent molding of a paper box or a box cover.

[0026] like Figure 2 and Figure 4As shown, the cutting device 1 includes a cutting conveying mechanism 6 and a cutting cutter 10 and a cutting roller 19 that cooperate with the cutting; the cutting conveying mechanism 6 conveys the cardboard (the cutting conveying mechanism 6 is a prior art, and can be a conveyor belt or a conveyor roller), and the cutting cutter 10 and the cutting roller 19 cooperate with each other to cut the cardboard, and the cutting cutter 10 can cut lines at the four corners of the cardboard (such as Fig. 9 The dotted lines in the figure are schematic lines and are actually continuous straight lines).

[0027] like Figure 1 As shown, the slotting device includes a feeding and conveying mechanism 2, a primary slotting mechanism 3 and a secondary slotting mechanism 5; Figure 3 As shown, the feed end of the primary slotting mechanism 3 is located at the bottom, the discharge end of the feed conveying mechanism 2 is connected with the feed end of the primary slotting mechanism 3, and the feed end of the feed conveying mechanism 2 is connected with the cutting device 1. After the cardboard passes through the cutting line of the cutting device 1, it enters the feed conveying mechanism 2, and the feed conveying mechanism 2 sends the cardboard to the primary slotting mechanism 3 of the slotting device for slotting (the feed conveying mechanism 2 is the prior art). Figure 3 As shown, the primary slotting mechanism 3 includes a slotting roller 30, a slotting knife 31, a belt 32 and a tensioning roller 33. The belt 32 acts on the slotting roller 30 under the tension of the tensioning roller 33, and the cardboard is conveyed between the two, and the slotting knife 31 slots the cardboard horizontally; the secondary slotting mechanism 5 also has the same structure and principle, but due to the different position setting, the secondary slotting mechanism 5 slots the cardboard longitudinally. The specific structures of both are prior art and will not be described in detail here.

[0028] Since the paperboard is fed from below the primary slotting mechanism 3, the slotting cutter 31 of the primary slotting mechanism 3 slots the lower surface of the paperboard, and the secant cutter 10 can be located above the secant pressure roller 19, and the secant cutter 10 secants the upper surface of the paperboard. Figure 3 As shown, the cutting device 1 is at the same height as the feeding conveying mechanism 2, and the position is relatively low (about the waist position, which is very comfortable for manual handling of cardboard feeding), which makes it easier for workers to place the cardboard on the cutting conveying mechanism 6. Since the cutting tool 10 is above the cutting roller 19, the cutting tool 10 will not be blocked by the cutting roller 19, which makes it easier to adjust the position of the cutting tool.

[0029] like Figure 3 As shown, the discharge end of the primary slotting mechanism 3 is located at the top (the paperboard comes out from the discharge end). Figure 1As shown, the discharging end of the primary slotting mechanism 3 is connected with the upper feeding mechanism 4 for conveying, and the conveying direction of the upper feeding mechanism 4 intersects with the discharging direction of the primary slotting mechanism 3, so that the upper feeding mechanism 4 can convey the cardboard horizontally, and the discharging end of the upper feeding mechanism 4 is connected with the feeding end of the secondary slotting mechanism 5 for conveying. Since the upper feeding mechanism 4 is connected to the discharging end of the primary slotting mechanism 3 and the feeding end of the secondary slotting mechanism 5, the discharging end of the primary slotting mechanism 3 is located at the top, then the feeding end of the secondary slotting mechanism 5 is also located at the top, and the discharging end of the secondary slotting mechanism 5 is located at the bottom.

[0030] The working principle of the utility model is as follows: Figure 1 and Fig. 9 As shown, after the cardboard passes through the cutting line of the cutting device 1 ( Fig. 9 The paperboard is fed into the feeding and conveying mechanism 2, which feeds the paperboard to the primary slotting mechanism 3, which slots the paperboard once (a longitudinal V-shaped groove B1 is cut on one side of the paperboard). After the paperboard is longitudinally slotted by the primary slotting mechanism 3, it comes out from the upper outlet and comes to the upper feeding mechanism 4. The upper feeding mechanism 4 then feeds the paperboard to the secondary slotting mechanism 5, which completes the secondary slotting (a transverse V-shaped groove B2 is cut on the same side of the paperboard). In this way, the four corners of the paperboard fall off because the cutting line coincides with the V-shaped groove.

[0031] like Figure 4 and Figure 5 As shown, the cutting tool 10 is mounted on the cutting shaft 11, and the cutting shaft 11 is connected to the cutting power source (not shown) for driving the cutting shaft 11 to rotate. The cutting shaft 11 rotates and drives the cutting tool 10 to rotate to cut the cardboard.

[0032] In order to drive the cutting line shaft 11 to rotate, Figure 4 As shown, a passive friction wheel 18 is connected to the secant shaft 11, and a secant power source is in transmission connection with a transmission roller 16, and a friction wheel 17 is provided in contact between the transmission roller 16 and the passive friction wheel 18. The secant power source drives the transmission roller 16 to rotate, the transmission roller 16 drives the friction wheel 16 to rotate, and the friction wheel 17 drives the passive friction wheel 18 to rotate. Since the passive friction wheel 18 is installed on the secant shaft 11, the secant shaft 11 can rotate.

[0033] In order to enable the secant shaft 11 to drive the secant cutter 10 to rotate, and at the same time enable the secant cutter 10 to adjust its position along the axial direction on the secant shaft 11, such as Figure 5As shown, the secant tool 10 includes a secant tool holder 100 (for installing the secant tool), the secant tool holder 100 is sleeved on the secant shaft 11, and a positioning block 103 is provided on the secant tool holder 100; the surface of the secant shaft 11 has a groove 110 extending in the axial direction; the positioning block 103 is located in the groove 110 of the secant shaft 11. Since the positioning block 103 of the secant tool holder 100 is located in the groove 110 of the secant shaft 11, when the secant shaft 11 rotates, the secant tool holder 100 can be driven to rotate, and the positioning block 103 of the secant tool holder 100 can move in the groove 110 of the secant shaft 11, so that the axial position of the secant tool 10 on the secant shaft 11 can be adjusted to meet the requirements of secants of different specifications.

[0034] In order to facilitate the adjustment of the axial position of the cutting tool 10 on the cutting shaft 11, as shown in FIG. Figure 5 As shown, an adjustment beam 15 parallel to the secant shaft 11 is provided above the secant shaft 11, and a movable and adjustable adjustment slide 14 is provided on the adjustment beam 15, and the adjustment slide 14 is connected to the support seat 12, and the support seat 12 is connected to the secant knife seat 100 through a bearing. When the adjustment slide 14 moves on the adjustment beam 15, the adjustment slide 14 drives the secant knife seat 100 to move through the support seat 12. Since the support seat 12 is connected to the secant knife seat 100 through a bearing, the support seat 12 does not affect the rotation of the secant knife seat 100. Of course, an adjustment screw 150 is installed on the frame, and the adjustment screw 150 is threadedly connected to the adjustment slide 14. By rotating the adjustment screw 150, the adjustment slide 14 can be driven to move on the adjustment beam 15, and the adjustment is very convenient.

[0035] Since the adjustment beam 15 and the secant shaft 11 cannot be absolutely parallel in practice, if the support seat 12 and the adjustment slide 14 are rigidly connected (fixedly connected), when the axial position of the adjustment slide 14 is adjusted, the adjustment beam 15 and the secant shaft 11 are not parallel, resulting in the secant knife seat 100 being unable to move on the secant shaft 11. In order to solve this problem, Figure 5 As shown, the adjusting slide 14 is connected to the support seat 12 via a fisheye bearing 13. Since the fisheye bearing 13 is rotatable, the secant knife seat 100 can be self-adjusted when moving on the secant rotating shaft 11, ensuring that the secant knife 10 can always be stably adjusted.

[0036] In order to cut an L-shaped cutting line at each corner of the cardboard, the utility model provides two cutting line solutions. The first cutting line solution is to install a horizontal cutting line knife 102 and a vertical cutting line knife 101 on a cutting line device, and the cardboard can be cut into an L-shaped cutting line by the horizontal cutting line knife 102 and the vertical cutting line knife 101 of the cutting line device; the second cutting line solution is to install a horizontal cutting line knife on one cutting line device and a vertical cutting line knife on another cutting line device, and the two cutting line devices are used to sequentially cut the cardboard horizontally and vertically.

[0037] The specific structure of the first secant solution is as follows: Figure 6 As shown, the secant knife 10 includes a transverse secant knife 102 and a longitudinal secant knife 101, and both the transverse secant knife 102 and the longitudinal secant knife 101 are mounted on a secant knife holder 100. The longitudinal secant knife 101 is a semicircular knife, and the transverse secant knife 102 is a flat knife. One end of the blade of the longitudinal secant knife 101 is close to one end of the blade of the transverse secant knife 102. It should be noted here that the "semicircular knife" does not specifically refer to a semicircular knife, but refers to a knife that is not a full circle, and it only needs to leave a gap that does not participate in the secant. Figure 8 As shown in FIG. 1 , when the cardboard is between the cutting line pressing roller 19 and the semicircular knife (the linear speeds of the two are the same), the local arc blade of the semicircular knife begins to roll into the cardboard, and as the cardboard is transported forward, until the end of the semicircular knife blade leaves the cardboard, a longitudinal cutting line A1 is cut on the cardboard (as shown in FIG. 1 ). Fig. 9 As shown in FIG. 1 ), at the same time, the transverse cutting knife 102 is rolled into the paperboard to cut a transverse cutting line A2 (as shown in FIG. 1 ) on the paperboard. Fig. 9 This will create an L-shaped cut line on the cardboard.

[0038] The specific structure of the second secant solution is as follows: Figure 1 As shown, at the feeding end of one wire cutting device 1, another wire cutting device 1 is provided, and the two wire cutting devices 1 are connected for transportation (that is, after one wire cutting device 1 completes wire cutting, it can be transported to the other wire cutting device 1 for further wire cutting); the wire cutting tool of one wire cutting device 1 includes a transverse wire cutting knife to achieve transverse wire cutting; the wire cutting tool of the other wire cutting device 1 includes a longitudinal wire cutting knife to achieve longitudinal wire cutting; and both the transverse wire cutting knife and the longitudinal wire cutting knife are semicircular knives. The wire cutting principle of the semicircular knife is as described above, and the two semicircular knives cut out the transverse cutting line A1 and the longitudinal cutting line A2 respectively. The two wire cutting devices 1 can be arranged in a straight line, and the steering wheel between the two wire cutting devices 1 is used to complete the 90-degree turning of the cardboard; the two wire cutting devices 1 can also be arranged in an L-shape (such as Figure 1 As shown in FIG. 1 ), the conveying directions of the two cutting wire devices 1 are perpendicular to each other.

[0039] Finally, it is worth mentioning that the distance between the cutting line pressing roller 19 and the cutting line cutter 10 can be adjusted to adapt to the cutting line depth of different cardboards. Figure 7As shown, the secant pressure roller 19 is rotatably mounted on the lifting adjustment block 190, and the lifting adjustment block 190 is movably mounted on the machine base 7 (the machine base 7 has an adjustment window, and the lifting adjustment block 190 can move up and down in the adjustment window). In addition, an adjusting screw 191 is mounted on the machine base 7, and the adjusting screw 191 is threadedly connected to the lifting adjustment block 190. By rotating the adjusting screw 191, the lifting adjustment block 190 can be driven to move up and down, so that the secant pressure roller 19 can be adjusted to be close to or away from the secant cutter 10, so as to adapt to the depth of the secant line of different cardboards.

Claims

1. A novel cardboard cutting and slotting machine, comprising a cutting device (1) and a slotting device, wherein the cutting device (1) is used to cut one side of the cardboard, and the slotting device is used to slot the other side of the cardboard; the cutting device (1) comprises a cutting conveying mechanism (6) and a cutting cutter (10) and a cutting roller (19) for matching the cutting; the slotting device comprises a feeding conveying mechanism (2) and a primary slotting mechanism (3); the characteristics are: The feed end of the primary slotting mechanism (3) is located at the bottom, the discharge end of the feed conveying mechanism (2) is connected to the feed end of the primary slotting mechanism (3) for conveying, the feed end of the feed conveying mechanism (2) is connected to the cutting device (1) for conveying, and the cutting tool (10) is located above the cutting roller (19).

2. A new cardboard cutting and slotting machine according to claim 1, characterized in that: The secant cutter (10) is mounted on a secant rotating shaft (11), and the secant rotating shaft (11) is in transmission connection with a secant power source that drives the secant rotating shaft (11) to rotate.

3. A new cardboard cutting and slotting machine according to claim 2, characterized in that: A passive friction wheel (18) is connected to the cutting line rotating shaft (11), the cutting line power source is connected to the driving roller (16) in driving connection, and a friction wheel (17) is provided in contact between the driving roller (16) and the passive friction wheel (18).

4. A new cardboard cutting and slotting machine according to claim 2, characterized in that: The secant tool (10) comprises a secant tool seat (100), the secant tool seat (100) is sleeved on a secant rotating shaft (11), and a positioning block (103) is provided on the secant tool seat (100); a groove (110) extending along the axial direction is provided on the surface of the secant rotating shaft (11); the positioning block (103) is located in the groove (110) of the secant rotating shaft (11); and the secant tool seat (100) can be moved and adjusted along the axial direction on the secant rotating shaft (11).

5. A new cardboard cutting and slotting machine according to claim 4, characterized in that: An adjusting crossbeam (15) parallel to the cutting line rotating shaft (11) is arranged above the cutting line rotating shaft (11), and a movable and adjustable adjusting slide seat (14) is arranged on the adjusting crossbeam (15), and the adjusting slide seat (14) is connected to the supporting seat (12), and the cutting line knife seat (100) is rotatably connected to the supporting seat (12).

6. A new cardboard cutting and slotting machine according to claim 5, characterized in that: The adjusting slide seat (14) is connected to the supporting seat (12) via a fisheye bearing (13).

7. A new cardboard cutting and slotting machine according to claim 4, characterized in that: The wire cutting knife (10) comprises a transverse wire cutting knife (102) and a longitudinal wire cutting knife (101), and the transverse wire cutting knife (102) and the longitudinal wire cutting knife (101) are both installed on a wire cutting knife seat (100); the longitudinal wire cutting knife (101) is a semicircular knife, and the transverse wire cutting knife (102) is a flat knife; one end of the blade of the longitudinal wire cutting knife (101) is close to one end of the blade of the transverse wire cutting knife (102).

8. A new cardboard cutting and slotting machine according to claim 1, characterized in that: The feed end of the wire cutting device (1) is also provided with another wire cutting device (1), and the two wire cutting devices (1) are connected in conveying; the wire cutting tool of one wire cutting device (1) includes a transverse wire cutting tool to achieve transverse wire cutting; the wire cutting tool of the other wire cutting device (1) includes a longitudinal wire cutting tool to achieve longitudinal wire cutting; the transverse wire cutting tool and the longitudinal wire cutting tool are both semicircular knives.

9. A new cardboard cutting and slotting machine according to claim 1, characterized in that: The discharge end of the primary slotting mechanism (3) is located at the top, the discharge end of the primary slotting mechanism (3) is connected to the upper feeding mechanism (4) for conveying, the conveying direction of the upper feeding mechanism (4) intersects with the discharge direction of the primary slotting mechanism (3), the discharge end of the upper feeding mechanism (4) is connected to the feed end of the secondary slotting mechanism (5) for conveying, the feed end of the secondary slotting mechanism (5) is located at the top, and the discharge end of the secondary slotting mechanism (5) is located at the bottom.

10. A new cardboard cutting and slotting machine according to claim 1, characterized in that: The secant pressure roller (19) is rotatably mounted on a lifting adjustment block (190), and the lifting adjustment block (190) is movably mounted on a machine base (7). An adjusting screw (191) is mounted on the machine base (7), and the adjusting screw (191) is threadedly connected to the lifting adjustment block (190).

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