A production device for cutting V-grooves on cardboard and a working method thereof

Abstract

The present invention relates to a production device for cutting V-grooves on cardboard and a working method thereof, wherein the output end of a cardboard loading and transferring device is connected to the input end of the V-groove cutting device, and the cardboard loading and transferring device is used to feed the paper to be cut into the V-groove cutting device; the output end of the V-groove cutting device is connected to the input end of the cardboard unloading device, and the V-groove cutting device is used to perform V-groove cutting on the paper; the cardboard unloading device is used to collect the paper after cutting; the cardboard loading and transferring device includes cardboard side guide devices and a cardboard flattening device, and the cardboard flattening device is located between the two side guide devices; the two side guide devices of the cardboard are used to guide the two sides of the transferred cardboard to prevent the cardboard from deviating during the transfer process, and the cardboard flattening device flattens the cardboard again during the transfer process to prevent the cardboard from warping. The V-groove production equipment in the present application can realize automatic loading and unloading, automatic cutting, and has complete functions and high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of paperboard manufacturing and processing, and in particular to a production device for cutting a V-groove on paperboard and a working method thereof. Background Art

[0002] The corners of packaging boxes are generally rounded and right-angled. The rounded corners are usually made by using a creasing machine to press lines on the cardboard and then folding it. The folding of the cardboard causes wrinkles at the inner corners of the finished packaging box. With the continuous improvement of people's living standards, the requirements for commodity packaging boxes are getting higher and higher. According to market research, right-angle packaging hard boxes are more popular with people. In the production process of right-angle packaging hard boxes, it is first necessary to open a V-groove with an angle of 90° on the cardboard. The V-groove machine in the prior art has the disadvantages of deviation and inaccurate positioning of the cardboard during the transfer process, which causes the cut V-groove to not meet the requirements. Therefore, it is necessary to propose a lightweight and environmentally friendly cardboard structure for making packaging boxes and a V-groove machine for cardboard processing. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings in the prior art and to provide a production equipment for cutting V-grooves on cardboard, which has a reasonable structural design, can automatically load and unload materials, has high cutting efficiency, and does not deviate from the cardboard transfer, and gives its working method.

[0004] The technical solution adopted by the present invention to solve the above-mentioned problem is: a production equipment for cutting V-grooves on cardboard, including a frame, characterized in that: it also includes a cardboard loading and transferring device, a V-groove cutting device and a cardboard unloading device arranged on the frame; the output end of the cardboard loading and transferring device is connected to the input end of the V-groove cutting device, and the cardboard loading and transferring device is used to feed the paper to be cut into the V-groove cutting device; the output end of the V-groove cutting device is connected to the input end of the cardboard unloading device, and the V-groove cutting device is used to perform V-groove cutting on the paper; the cardboard unloading device is used to collect the paper after cutting; the cardboard loading and transferring device includes cardboard side guide devices and a cardboard flattening device, and the cardboard flattening device is located between the two side guide devices; the two side guide devices of the cardboard are used to guide the two sides of the transferred cardboard to prevent the cardboard from deviating during the transfer process, and the cardboard flattening device flattens the cardboard again during the transfer process to prevent the cardboard from warping.

[0005] Preferably, the cardboard loading and transferring device also includes a transfer platform, a No. 1 conveyor belt device and a cardboard placement bracket; the transfer platform is horizontally arranged, and its two sides are fixedly connected to the frame, the No. 1 conveyor belt device includes multiple No. 1 conveyor belts, and the multiple No. 1 conveyor belts are arranged in sequence and in parallel at intervals in a direction perpendicular to the cardboard transfer direction, and the upper belts of the multiple No. 1 conveyor belts are located above the transfer platform; the cardboard placement bracket includes a support rod and at least two supporting rods, the support rod is horizontally arranged, and its two ends are fixed to the frame, the installation direction is perpendicular to the cardboard transfer direction, and the installation height of the support rod is higher than the installation height of the transfer platform; the supporting rod is installed along the cardboard transfer direction, one end of which is connected to the support rod, and the other end is placed on the transfer platform; the guide devices on both sides of the cardboard are installed on the transfer platform, and the guide devices on both sides of the cardboard are installed on the transfer platform. It comprises two relatively arranged guide assemblies, wherein the guide assemblies comprise an elongated guide plate, which is installed above the transfer platform according to its length direction along the cardboard transfer direction, and a row of guide rollers are installed below the guide plate; the cardboard flattening device is arranged between the two guide assemblies, and the cardboard flattening device comprises a plurality of flattening assemblies, the number of which is consistent with the number of the No. 1 conveyor belt, and one flattening assembly corresponds to one No. 1 conveyor belt, and the flattening assembly comprises an elongated flat plate, which is arranged above the No. 1 conveyor belt according to its length direction along the cardboard transfer direction, and there is a certain distance between the flattening plate and the No. 1 conveyor belt, and a plurality of through holes are provided on the flattening plate, and a flattening rolling ball with a diameter slightly smaller than that of the through hole is placed in each through hole, and the bottom surface of the flattening rolling ball contacts the upper surface of the No. 1 conveyor belt.

[0006] Preferably, the V-groove cutting device includes an auxiliary roller, a No. 2 auxiliary conveyor belt device and at least one set of V-groove cutting tool devices; the auxiliary roller is installed at the output end of the cardboard feeding and transferring device; the No. 2 auxiliary conveyor belt device includes a plurality of No. 2 conveyor belts, and a No. 2 supporting roller, a No. 3 supporting roller, a No. 4 supporting roller and a No. 5 supporting roller arranged in parallel with each other; a plurality of No. 2 conveyor belts are wound around the No. 2 supporting roller, the No. 3 supporting roller, the No. 4 supporting roller and the No. 5 supporting roller; the No. 2 supporting roller and the No. 3 supporting roller are located above the auxiliary roller, the No. 4 supporting roller and the No. 5 supporting roller are located below the auxiliary roller, the vertical line between the central axis of the No. 2 supporting roller and the central axis of the No. 4 supporting roller intersects with the central axis of the auxiliary roller, and the vertical line between the central axis of the No. 3 supporting roller and the central axis of the No. 5 supporting roller intersects with the central axis of the auxiliary roller The two lines intersect, and the belt between the No. 2 supporting roller and the No. 5 supporting roller on the No. 2 conveyor belt is attached to the side surface of the auxiliary roller away from the cardboard feeding and transferring device; the V-groove cutting tool device includes a tool holder slide rail and a plurality of tool assemblies installed on the tool holder slide rail, and the number of tool assemblies is determined according to the number of V-grooves required to be cut on the cardboard in one processing; the tool holder slide rail is installed on the frame and is located on one side of the auxiliary roller; the tool assembly includes a support plate, a tool handle, a blade mounting seat and two blades; the support plate is installed on the tool holder slide rail and can move along the tool holder slide rail, the tool handle is installed on the support plate, the blade mounting seat is installed on the end of the tool handle, and the two blades are installed on the blade mounting seat at a certain angle, the tips of the two blades are against and facing the auxiliary roller, and the vertical distance between the tip of the blade and the surface of the auxiliary roller is adjustable.

[0007] Preferably, the paper unloading device includes a No. 3 conveyor belt device and a cardboard collecting platform; the input end of the No. 3 conveyor belt device is close to the No. 5 supporting roller and is located below the cardboard loading and transferring device; the cardboard collecting platform is inclined; the cut cardboard is output from the No. 5 supporting roller and then enters the No. 3 conveyor belt device, and the No. 3 conveyor belt device delivers the cardboard to the cardboard collecting platform.

[0008] Preferably, the No. 1 conveyor belt device also includes two No. 1 supporting rollers and a tensioning roller, the two No. 1 supporting rollers are respectively arranged at the input end and the output end of the transfer platform, the tensioning roller is arranged at the lower position between the two No. 1 supporting rollers, and the multiple No. 1 conveyor belts are wound around the two No. 1 supporting rollers and the tensioning roller; the end of the supporting rod placed on the transfer platform is equipped with a roller, and the roller is in contact with the surface of the transfer platform.

[0009] Preferably, a protective plate is installed at one end of the guide plate, and when a first base cardboard is placed on the cardboard placement bracket, the front end of the first base cardboard is located between the two protective plates in the two guide assemblies, and the height of the first base cardboard does not exceed the height of the protective plate; the guide assembly also includes a main locking mounting seat and a secondary locking mounting seat, and the main locking mounting seat and the secondary locking mounting seat are installed at the upper two ends of the guide plate, wherein the main locking mounting seat is provided with two mounting through holes, the two mounting through holes are arranged up and down, and the secondary locking mounting seat is provided with a mounting through hole, and the main locking mounting seat is located at the end of the guide plate where the protective plate is installed; the guide assembly is installed on three parallel mounting shafts through the three mounting through holes on the main locking mounting seat and the secondary locking mounting seat, and the two ends of the mounting shaft are fixedly connected to the frame, wherein a No. 1 ruler is fixed on the mounting shaft that passes through the mounting through hole located on the upper side of the main locking mounting seat.

[0010] Preferably, a No. 1 mounting seat and a No. 2 mounting seat are fixed at both ends of the upper side of the pressure plate, and the pressure plate is mounted on three mounting shafts through the No. 1 mounting seat and the No. 2 mounting seat, wherein the No. 1 mounting seat is located at the cardboard input end, and a height limiting plate is arranged on the No. 1 mounting seat to prevent multiple cardboards from entering the pressure plate and the No. 1 conveyor belt at the same time; the height limiting plate is arranged vertically, and its top is sleeved on a vertical No. 1 stud, and the No. 1 stud is installed on the top of the No. 1 mounting seat, and a compression spring is sleeved on the No. 1 stud, and the compression spring is placed between the top surface of the height limiting plate and the top surface of the No. 1 mounting seat, and is used to apply an upward thrust to the height limiting plate, so that the top surface of the height limiting plate is fitted on the nut of the No. 1 stud; the height limiting plate can be lifted and moved by the No. 1 stud, and the distance from the bottom surface of the height limiting plate to the upper surface of the No. 1 conveyor belt is greater than one cardboard thickness and less than two cardboard thicknesses.

[0011] Preferably, a rotating handle is installed on the support plate, a gear is installed at the lower end of the rotating handle, a rack and a No. 2 ruler are installed on the tool holder slide rail, and the gear and rack are meshed; the rotating handle is turned to drive the support plate to move along the tool holder slide rail through the gear and rack transmission, and the No. 2 ruler is used to check the movement distance of the support plate; a U-shaped groove is provided on the tool handle, and a bolt is arranged in the U-shaped groove, and the bolt is used to fasten the tool handle to the support plate, and a No. 2 stud is installed on the support plate, and one end of the No. 2 stud is screwed into one end of the tool handle, and a threaded hole matching the No. 2 stud is provided at this end of the tool handle; loosen the bolt, and then rotate the No. 2 stud, and adjust the length of the threaded hole of the No. 2 stud screwed into the end of the tool handle, so as to drive the tool handle to move, thereby adjusting the vertical distance between the tip of the tool and the surface of the auxiliary roller; an air blowing and blanking elbow is installed on the blade mounting seat, and the air outlet direction of the air blowing and blanking elbow is toward the place where the tips of the two blades abut each other.

[0012] Preferably, the production equipment for cutting V-grooves on cardboard also includes a waste output conveyor belt; the waste output conveyor belt is arranged below the V-groove cutting device and is used to convey out the waste generated during the cutting process.

[0013] The present invention also provides another technical solution: a working method of a production device for cutting a V-groove on a cardboard, the steps of which are as follows:

[0014] Step 1: Equipment adjustment:

[0015] Adjust the horizontal distance between the two protective plates according to the width of the cardboard to be cut. The specific adjustment method is: loosen the main locking mounting seat and the auxiliary locking mounting seat, refer to the No. 1 ruler, push the guide assembly along the installation shaft until the distance between the two protective plates is slightly larger than the width of the cardboard, and then lock the main locking mounting seat and the auxiliary locking mounting seat on the installation shaft after adjusting to the right position;

[0016] Adjust the distance from the bottom surface of the height limit plate to the upper surface of the No. 1 conveyor belt according to the thickness of a single cardboard. The specific adjustment method is: screw the No. 1 stud to change the depth of the lower part screwed into the No. 1 mounting seat, thereby changing the distance from the bottom surface of the height limit plate to the upper surface of the No. 1 conveyor belt. The distance from the bottom surface of the height limit plate to the upper surface of the No. 1 conveyor belt is greater than one cardboard thickness and less than two cardboard thicknesses.

[0017] The number of tool assemblies is determined according to the number of V-grooves required for cutting in the last processing of the cardboard. The tool assemblies are installed on the tool holder slide rail, and the spacing between the two corresponding tool assemblies is adjusted according to the spacing between two adjacent V-grooves. The specific adjustment method is: turn the rotary handle to drive the support plate to move along the tool holder slide rail through the gear rack transmission, refer to the No. 2 ruler, until the spacing between the two tool assemblies is adjusted to meet the requirements;

[0018] According to the depth of the V-groove to be processed, adjust the vertical distance between the tip of the two blades and the surface of the auxiliary roller. The specific adjustment method is: loosen the bolt, and then rotate the No. 2 stud to adjust the length of the No. 2 stud screwed into the threaded hole at the end of the handle, so as to drive the handle to move, thereby adjusting the vertical distance between the tip of the blade and the surface of the auxiliary roller;

[0019] Step 2: Place the first-base cardboard on the bracket, and make the front end of the first-base cardboard be located between the two protective plates in the two guide assemblies;

[0020] Step 3: Start the device. First, the bottom cardboard of the first base cardboard is moved forward under the friction of the No. 1 conveyor belt. Due to the height limit plate, only one cardboard enters between the flat plate and the No. 1 conveyor belt at the same time. During the transfer process, the guide rollers in the guide devices on both sides of the cardboard guide the two sides of the transferred cardboard to prevent the cardboard from running off during the transfer process. The flattening ball flattens the cardboard to prevent the cardboard from warping.

[0021] Step 4: The cardboard is output from the end of the cardboard feeding and transferring device and enters between the auxiliary roller and the No. 2 conveyor belt. The auxiliary roller and the No. 2 conveyor belt jointly drive the cardboard to move downward;

[0022] Step 5: During the downward movement, the tips of the two blades cut a V-shaped groove on the cardboard. The waste generated during the cutting process falls onto the waste output conveyor belt under the blowing action of the air-blow unloading elbow. The cut paper is transported to the cardboard collection platform through the No. 3 conveyor belt device.

[0023] Compared with the prior art, the present invention has the following advantages and effects:

[0024] 1. The production equipment for cutting V-grooves on cardboard in this application can realize automatic loading and unloading, automatic cutting, and has perfect functions and high efficiency;

[0025] 2. The guide devices on both sides of the cardboard ensure that the cardboard does not deviate during the transfer process, so that it can move accurately into the V-groove cutting device for cutting, so that the V-groove will not deviate;

[0026] 3. The rolling ball in the cardboard flattening device rolls on the cardboard to flatten it again during the transfer process to prevent the cardboard from curling up; the distance from the bottom of the height limit plate to the upper surface of the No. 1 conveyor belt is adjustable. When processing cardboards of different thicknesses, the height limit plate is adjusted to ensure that only one cardboard can enter between the flat plate and the No. 1 conveyor belt at the same time, ensuring the reliability and stability of the cutting work;

[0027] 4. In the V-groove cutting device, the belt between the No. 2 supporting roller and the No. 5 supporting roller on the No. 2 conveyor belt is attached to the side of the auxiliary roller away from the No. 1 conveyor belt device. This part of the belt tightly attaches the cardboard to the auxiliary roller. Under the action of the two, the cardboard moves accurately, ensuring the linearity of the opened V-groove;

[0028] 5. The air outlet direction of the air-blowing bending pipe is toward the point where the tips of the two blades touch each other. The air-blowing method is used to assist the waste generated during the cutting process to fall onto the waste output conveyor belt in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of a plan view of the structure of an embodiment of the present invention.

[0030] Figure 2 yes Figure 1 Schematic diagram of the AA structure.

[0031] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0032] Figure 4 yes Figure 1 A schematic diagram of the K-direction structure of the guide assembly on one side of the guide devices on both sides of the middle paperboard.

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the guide assembly in the guide device on both sides of the paperboard in an embodiment of the present invention.

[0034] Figure 6 yes Figure 5 Schematic diagram of the F-direction structure with guide rollers installed under the middle guide plate.

[0035] Figure 7 It is a schematic diagram of a three-dimensional structure in which a first layer of cardboard is placed on a cardboard placement bracket and its front part is located between two protective plates in an embodiment of the present invention.

[0036] Figure 8 Schematic diagram of the structure of the V-groove cutting device in an embodiment of the present invention.

[0037] Fig. 9 Schematic diagram of the structure of the V-groove cutting tool device in an embodiment of the present invention.

[0038] Fig.10 It is a schematic diagram of the three-dimensional structure in which two blades are installed on a blade mounting seat in an embodiment of the present invention.

[0039] Fig.11 yes Fig.10 Schematic diagram of three-dimensional decomposition.

[0040] Fig.12 yes Fig.10 Schematic diagram of part of the structure.

[0041] Fig.13 It is a schematic diagram of the top view of the structure in which two blades are installed on the blade mounting seat.

[0042] Description of reference numerals:

[0043] Rack 1;

[0044] Cardboard feeding and transferring device 2;

[0045] Transfer platform 21; No. 1 conveyor belt device 22; cardboard side guide devices 23; cardboard flattening device 24; cardboard placement bracket 25;

[0046] No. 1 conveyor belt 221; No. 1 supporting roller 222; tensioning roller 223;

[0047] Guide plate 231; guide roller 232; main locking mounting seat 233; auxiliary locking mounting seat 234; mounting shaft 235; No. 1 ruler 236; protective plate 237;

[0048] Flat plate 241; through hole 242; rolling ball 243 for flattening; No. 1 mounting seat 244; No. 2 mounting seat 245; height limiting plate 246; No. 1 stud 247; compression spring 248;

[0049] Support rod 251; supporting rod 252; roller 253;

[0050] V-groove cutting device 3; auxiliary roller 31; No. 2 auxiliary conveyor belt device 32; V-groove cutting tool device 33;

[0051] No. 2 supporting roller 321; No. 3 supporting roller 322; No. 4 supporting roller 323; No. 5 supporting roller 324; No. 2 conveyor belt 325;

[0052] Tool holder slide rail 331; tool assembly 332; support plate 333; tool handle 334; blade mounting seat 335; blade 336; rotating handle 337; gear 338; rack 339; No. 2 ruler 3310; No. 2 stud 3311; air blowing and unloading elbow 3312; U-shaped groove 3341; bolt 3342;

[0053] Cardboard unloading device 4; No. 3 conveyor belt device 41; cardboard collecting platform 42;

[0054] Waste output conveyor belt 5;

[0055] First base cardboard 6. DETAILED DESCRIPTION

[0056] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0057] Example

[0058] See also Figures 1 to 13 .

[0059] This embodiment is a production device for cutting V-grooves on paperboard, comprising a frame 1, and a paperboard feeding and transferring device 2, a V-groove cutting device 3, a paperboard unloading device 4, and a waste material output conveyor belt 5 arranged on the frame 1. The output end of the paperboard feeding and transferring device 2 is connected to the input end of the V-groove cutting device 3, and the paperboard feeding and transferring device 2 is used to feed the paper to be cut into the V-groove cutting device 3; the output end of the V-groove cutting device 3 is connected to the input end of the paperboard unloading device 4, and the V-groove cutting device 3 is used to perform V-groove cutting on the paper; the paperboard unloading device 4 is used to collect the paperboard after cutting; the waste material output conveyor belt 5 is located below the V-groove cutting device 3, and is used to output the waste generated during the cutting process.

[0060] In this embodiment, the cardboard loading and transferring device 2 includes a transfer platform 21, a No. 1 conveyor belt device 22, cardboard side guide devices 23, a cardboard flattening device 24 and a cardboard placement bracket 25.

[0061] In this embodiment, the transfer platform 21 is arranged horizontally, and its two sides are fixedly connected to the frame 1. The No. 1 conveyor belt device 22 includes two No. 1 supporting rollers 222, a tensioning roller 223 and multiple No. 1 conveyor belts 221. The number of No. 1 conveyor belts 221 is determined according to the overall width of the V-groove machine and the type of belt selected. The multiple No. 1 conveyor belts 221 are arranged in parallel and spaced in sequence in a direction perpendicular to the cardboard transfer direction, and the upper belts of the multiple No. 1 conveyor belts 221 are located above the transfer platform 21. The two No. 1 supporting rollers 222 are respectively arranged at the input end and the output end of the transfer platform 21, the tensioning roller 223 is arranged below the two No. 1 supporting rollers 222, and the multiple No. 1 conveyor belts 221 are wound around the two No. 1 supporting rollers 222 and the tensioning roller 223.

[0062] In this embodiment, the cardboard placement bracket 25 includes a support rod 251 and at least two supporting rods 252, and the number of supporting rods 252 installed is adjusted according to the width of the cardboard to be processed. The support rod 251 is horizontally arranged, and its two ends are fixed on the frame 1, and the installation direction is perpendicular to the cardboard transfer direction. The installation height of the support rod 251 is higher than the installation height of the transfer platform 21, and the supporting rod 252 is installed obliquely along the cardboard transfer direction, one end of which is connected to the support rod 251, and the other end is placed on the transfer platform 21, and the end of the supporting rod 252 placed on the transfer platform 21 is installed with a roller 253, and the roller 253 is in contact with the surface of the transfer platform 21.

[0063] In this embodiment, the guide devices 23 on both sides of the cardboard are installed on the transfer platform 21, and are used to guide the two sides of the transferred cardboard to prevent the cardboard from deviating during the transfer process, so that the cardboard can be accurately positioned to enter the V-groove cutting device 3 for cutting, so that the V-groove will not deviate. The guide devices 23 on both sides of the cardboard include two guide components arranged opposite to each other, and the guide components include a long guide plate 231, which is installed above the transfer platform 21 according to the placement posture of its length direction along the cardboard transfer direction, and a row of guide rollers 232 are installed below the guide plate 231.

[0064] In this embodiment, a protective plate 237 is installed at one end of the guide plate 231. When the first-layer cardboard 6 is placed on the cardboard placement bracket 25, the front end of the first-layer cardboard 6 is located between the two protective plates 237 in the two guide assemblies. The height of the first-layer cardboard 6 does not exceed the height of the protective plate 237. The protective plate 237 prevents the cardboard from sliding to both sides.

[0065] In this embodiment, the guide assembly further includes a main locking mounting seat 233 and a secondary locking mounting seat 234, which are mounted on the upper ends of the guide plate 231, wherein the main locking mounting seat 233 has two mounting through holes, which are arranged up and down, and the secondary locking mounting seat 234 has one mounting through hole, and the main locking mounting seat 233 is located at the end of the guide plate 231 where the protective plate 237 is installed. The guide assembly is mounted on three parallel mounting shafts 235 through the three mounting through holes on the main locking mounting seat 233 and the secondary locking mounting seat 234, and the two ends of the mounting shaft 235 are fixedly connected to the frame 1, wherein a No. 1 ruler 236 is fixed on the mounting shaft 235 that passes through the mounting through hole located on the upper side of the main locking mounting seat 233. When it is necessary to process cardboards of different widths, it is necessary to adjust the spacing between the two guide components so that the spacing between the two protective plates 237 is slightly larger than the width of the cardboard, so that the front part of the first layer of cardboard can be placed between the two protective plates 237. When adjusting the spacing, loosen the main locking mounting seat 233 and the secondary locking mounting seat 234, and then the guide component can be moved on the mounting shaft 235, and the spacing between the two guide components is adjusted with the No. 1 ruler 236 as a reference. After the spacing is adjusted to the right position, the main locking mounting seat 233 and the secondary locking mounting seat 234 are locked.

[0066] In this embodiment, the cardboard flattening device 24 is arranged between two guide components. The cardboard flattening device 24 includes a plurality of flattening components. The number of flattening components is consistent with the number of the No. 1 conveyor belt 221. One flattening component corresponds to one No. 1 conveyor belt 221. The flattening component includes a long flattening plate 241. The flattening plate 241 is arranged above the No. 1 conveyor belt 221 according to its length direction and the placement posture along the cardboard transfer direction. There is a certain distance between the flattening plate 241 and the No. 1 conveyor belt 221. A plurality of through holes 242 are provided on the flattening plate 241. A flattening ball 243 with a diameter slightly smaller than that of the through hole 242 is placed in each through hole 242. The bottom surface of the flattening ball 243 contacts the upper surface of the No. 1 conveyor belt 221. When the paper enters the flattening plate 241 and is transferred between the No. 1 conveyor belt 221, the flattening ball 243 rolls on the cardboard to flatten the cardboard again during the transfer process to prevent the cardboard from warping.

[0067] In this embodiment, a No. 1 mounting seat 244 and a No. 2 mounting seat 245 are fixed at both ends of the upper side of the pressing plate 241. The pressing plate 241 is mounted on three mounting shafts 235 through the No. 1 mounting seat 244 and the No. 2 mounting seat 245. The No. 1 mounting seat 244 is located at the cardboard input end. A height limiting plate 246 is provided on the No. 1 mounting seat 244 to prevent multiple cardboards from entering between the pressing plate 241 and the No. 1 conveyor belt 221 at the same time. The height limiting plate 246 is vertically arranged, and a vertical No. 1 stud 247 is connected to the top of the No. 1 stud. The column 247 is installed on the top of the No. 1 mounting seat 244. The No. 1 stud 247 is sleeved with a compression spring 248. The compression spring 248 is placed between the top surface of the height limiting plate 246 and the top surface of the No. 1 mounting seat 244, and is used to apply an upward thrust to the height limiting plate 246, so that the top surface of the height limiting plate 246 fits the nut of the No. 1 stud 247. The height limiting plate 246 can be raised and lowered through the No. 1 stud 247. The distance from the bottom surface of the height limiting plate 246 to the upper surface of the No. 1 conveyor belt 221 is greater than one cardboard thickness and less than two cardboard thicknesses. When processing cardboards of different thicknesses, the height limiting plate 246 is adjusted to ensure that only one cardboard can enter between the pressing plate 241 and the No. 1 conveyor belt 221 at the same time, which ensures the reliability and stability of the cutting work.

[0068] In this embodiment, the V-groove cutting device 3 includes an auxiliary roller 31, a No. 2 auxiliary conveyor belt device 32 and two sets of V-groove cutting tool devices 33. The auxiliary roller 31 is installed at the output end of the No. 1 conveyor belt device 22, and the top surface of the auxiliary roller 31 is at the same height as the upper surface of the No. 1 conveyor belt 221. The No. 2 auxiliary conveyor belt device 32 includes a plurality of No. 2 conveyor belts 325, and No. 2 supporting rollers 321, No. 3 supporting rollers 322, No. 4 supporting rollers 323 and No. 5 supporting rollers 324 arranged parallel to each other; a plurality of No. 2 conveyor belts 325 are wound around the No. 2 supporting rollers 321, No. 3 supporting rollers 322, No. 4 supporting rollers 323 and No. 5 supporting rollers 324. The second supporting roller 321 and the third supporting roller 322 are located above the auxiliary roller 31, and the fourth supporting roller 323 and the fifth supporting roller 324 are located below the auxiliary roller 31. The vertical line between the central axis of the second supporting roller 321 and the central axis of the fourth supporting roller 323 intersects with the central axis of the auxiliary roller 31, and the vertical line between the central axis of the third supporting roller 322 and the central axis of the fifth supporting roller 324 intersects with the central axis of the auxiliary roller 31. The belt between the second supporting roller 321 and the fifth supporting roller 324 on the second conveyor belt 325 is attached to the side surface of the auxiliary roller 31 away from the first conveyor belt device 22. This part of the belt tightly attaches the cardboard to the auxiliary roller 31. The cardboard moves accurately under the action of the two, ensuring the linearity of the V-groove.

[0069] In this embodiment, two sets of V-groove cutting tool devices 33 are arranged one above the other on one side of the auxiliary roller 31, one set is for standby, and when one set of the tool devices fails and needs to be repaired, the other set of tools is activated. The V-groove cutting tool device 33 includes a tool holder slide rail 331 and a plurality of tool assemblies 332 mounted on the tool holder slide rail 331, and the number of tool assemblies 332 is determined according to the number of V-grooves required to be cut in the last processing of the cardboard.

[0070] In this embodiment, the tool holder slide rail 331 is installed on the frame 1 and is located on one side of the auxiliary roller 31; the tool assembly 332 includes a support plate 333, a tool handle 334, a blade mounting seat 335 and two blades 336. The support plate 333 is installed on the tool holder slide rail 331 and can move along the tool holder slide rail 331. A rotating handle 337 is installed on the support plate 333, and a gear 338 is installed at the lower end of the rotating handle 337. A rack 339 and a second ruler 3310 are installed on the tool holder slide rail 331, and the gear 338 and the rack 339 are meshed; the rotating handle 337 is rotated, and the rack 333 is driven to move along the tool holder slide rail 331 through the gear and rack transmission, and the second ruler 3310 is used to check the moving distance of the support plate 333. Because the distance between the two parallel V-grooves may be different when processing cardboards of different specifications, it is necessary to adjust the distance between the two tool assemblies 332. The distance between the two tool assemblies 332 can be adjusted by adjusting the distance between the two support plates 333.

[0071] In this embodiment, the handle 334 is installed on the support plate 333, the blade mounting seat 335 is installed at the end of the handle 334, and the two blades 336 are installed on the blade mounting seat 335 at an angle of 90°. The tips of the two blades 336 are against and facing the auxiliary roller 31, and the vertical distance between the tip of the blade and the surface of the auxiliary roller 31 is adjustable. By adjusting the vertical distance between the tip of the blade and the surface of the auxiliary roller 31, the depth of the cut V-groove can be controlled.

[0072] In this embodiment, a U-shaped groove 3341 is provided on the knife handle 334, and a bolt 3342 is arranged in the U-shaped groove 3341. The bolt 3342 is used to fasten the knife handle 334 to the support plate 333. A No. 2 stud 3311 is installed on the support plate 333. One end of the No. 2 stud 3311 is screwed into one end of the knife handle 334, and a threaded hole matching the No. 2 stud 3311 is provided at this end of the knife handle 334; loosen the bolt 3342, and then rotate the No. 2 stud 3311 to adjust the length of the threaded hole at the end of the No. 2 stud 3311 screwed into the end of the knife handle 334, so as to drive the knife handle 334 to move, thereby adjusting the vertical distance between the tip of the knife and the surface of the auxiliary roller 31. A blowing and unloading elbow 3312 is installed on the blade mounting seat 335, and the air outlet direction of the blowing and unloading elbow 3312 is toward the point where the tips of the two blades 336 abut against each other. The blowing and unloading method is used to assist the waste generated during the cutting process to fall onto the waste output conveyor belt 5 in time.

[0073] In this embodiment, the paper unloading device 4 includes a No. 3 conveyor belt device 41 and a cardboard collecting platform 42; the input end of the No. 3 conveyor belt device 41 is close to the No. 5 supporting roller 324 and is located below the transfer platform 21; the cardboard collecting platform 42 is inclined and is located below the cardboard placement bracket 25; the cut cardboard is output from the No. 5 supporting roller 324 and then enters the No. 3 conveyor belt device 41, and the No. 3 conveyor belt device 41 delivers the cardboard to the cardboard collecting platform 42.

[0074] The V-groove machine in the present application can realize automatic loading and unloading and automatic cutting, with complete functions and high efficiency. The cardboard collecting platform 42 and the cardboard placing bracket 25 are located on the same side of the frame 1. During the processing, only one staff member is required to supervise, regularly put the cardboard on the cardboard placing bracket 25 and sort and remove the cut cardboard on the cardboard collecting platform 42.

[0075] In this embodiment, the working method of the production equipment for cutting V-grooves on paperboard comprises the following steps:

[0076] Step 1: Equipment adjustment:

[0077] Adjust the horizontal spacing between the two protective plates 237 according to the width of the cardboard to be cut. The specific adjustment method is: loosen the main locking mounting seat 233 and the secondary locking mounting seat 234, refer to the No. 1 ruler 236, push the guide assembly along the mounting shaft 235 until the spacing between the two protective plates 237 is slightly larger than the cardboard width, and then lock the main locking mounting seat 233 and the secondary locking mounting seat 234 on the mounting shaft 235 after adjusting to the right position;

[0078] The distance from the bottom surface of the height limiting plate 246 to the upper surface of the No. 1 conveyor belt 221 is adjusted according to the thickness of a single cardboard. The specific adjustment method is: screw the No. 1 stud 247 to change the depth of the lower part screwed into the No. 1 mounting seat 244, thereby changing the distance from the bottom surface of the height limiting plate 246 to the upper surface of the No. 1 conveyor belt 221. The distance from the bottom surface of the height limiting plate 246 to the upper surface of the No. 1 conveyor belt 221 is greater than one cardboard thickness and less than two cardboard thicknesses.

[0079] The number of tool assemblies 332 is determined according to the number of V-grooves required for cutting in the last processing of the cardboard, and the tool assembly is installed on the tool holder slide rail 331. The spacing between the two corresponding tool assemblies 332 is adjusted according to the spacing between two adjacent V-grooves. The specific adjustment method is: rotate the rotary handle 337, and drive the support plate 333 to move along the tool holder slide rail 331 through the gear rack transmission, and refer to the No. 2 ruler 3310 until the spacing between the two tool assemblies 332 is adjusted to meet the requirements;

[0080] According to the depth of the V-shaped groove to be processed, the vertical distance between the tip of the two blades 336 and the surface of the auxiliary roller 31 is adjusted. The specific adjustment method is: loosen the bolt 3342, and then rotate the second stud 3311 to adjust the length of the second stud 3311 screwed into the threaded hole at the end of the handle 334, so as to drive the handle 334 to move, thereby adjusting the vertical distance between the tip of the blade and the surface of the auxiliary roller 31;

[0081] Step 2: Place the first-layer cardboard on the bracket 25, and make the front end of the first-layer cardboard be located between the two protection plates 237 in the two guide assemblies;

[0082] Step 3: Start the device. First, the bottom cardboard of the first base cardboard is moved forward under the friction of the No. 1 conveyor belt 221. Due to the effect of the height limiting plate 246, only one cardboard enters between the pressing plate 241 and the No. 1 conveyor belt 221 at the same time. During the transfer process, the guide rollers 232 in the guide devices 23 on both sides of the cardboard guide the two sides of the transferred cardboard to prevent the cardboard from running off during the transfer process. The flattening ball 243 flattens the cardboard to prevent the cardboard from tilting.

[0083] Step 4: After being output from the end of the cardboard feeding and transferring device 2, the cardboard enters between the auxiliary roller 31 and the second conveyor belt 325, and the auxiliary roller 31 and the second conveyor belt 325 jointly drive the cardboard to move downward;

[0084] Step 5: During the downward movement, the tips of the two blades 336 cut a V-shaped groove on the cardboard, and the waste generated during the cutting process falls onto the waste output conveyor belt 5 under the blowing action of the air-blow unloading elbow 3312. The cut paper is transported to the cardboard collection platform 42 through the No. 3 conveyor belt device 41.

[0085] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the protection scope of the present invention. Any changes and modifications made by any technician familiar with the technology without departing from the concept and scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A production device for cutting V-grooves on cardboard, comprising a frame (1), characterized in that: It also includes a cardboard loading and transferring device (2), a V-groove cutting device (3) and a cardboard unloading device (4) which are arranged on the frame (1); The output end of the paperboard feeding and transferring device (2) is connected to the input end of the V-groove cutting device (3), and the paperboard feeding and transferring device (2) is used to feed the paper to be cut into the V-groove cutting device (3); the output end of the V-groove cutting device (3) is connected to the input end of the paperboard unloading device (4), and the V-groove cutting device (3) is used to perform V-groove cutting on the paper; the paperboard unloading device (4) is used to collect the paper after cutting; The cardboard loading and transferring device (2) comprises a transfer platform (21), a No. 1 conveyor belt device (22), cardboard side guide devices (23), a cardboard flattening device (24) and a cardboard placement bracket (25), wherein the cardboard flattening device (24) is located between the side guide devices (23); the side guide devices (23) are used to guide the two sides of the transferred cardboard to prevent the cardboard from deviating during the transfer process, and the cardboard flattening device (24) flattens the cardboard again during the transfer process to prevent the cardboard from warping; The transfer platform (21) is arranged horizontally, and its two sides are fixedly connected to the frame (1); the No. 1 conveyor belt device (22) comprises a plurality of No. 1 conveyor belts (221), two No. 1 supporting rollers (222) and a tensioning roller (223); the plurality of No. 1 conveyor belts (221) are arranged in parallel and spaced apart in a direction perpendicular to the cardboard transfer direction, and the upper belts of the plurality of No. 1 conveyor belts (221) are located above the transfer platform (21); Two No. 1 supporting rollers (222) are respectively arranged at the input end and the output end of the transfer platform (21); a tensioning roller (223) is arranged below the two No. 1 supporting rollers (222); the plurality of No. 1 conveyor belts (221) are wound around the two No. 1 supporting rollers (222) and a tensioning roller (223); a roller (253) is installed at the end of the supporting rod (252) placed on the transfer platform (21); the roller (253) is in contact with and connected to the surface of the transfer platform (21); The cardboard placement bracket (25) comprises a support rod (251) and at least two supporting rods (252); the support rod (251) is arranged horizontally, with its two ends fixed on the frame (1), and the installation direction is perpendicular to the cardboard transfer direction; the installation height of the support rod (251) is higher than the installation height of the transfer platform (21); the supporting rod (252) is installed along the cardboard transfer direction, with one end connected to the support rod (251) and the other end placed on the transfer platform (21); The cardboard side guide devices (23) are installed on the transfer platform (21), and the cardboard side guide devices (23) include two guide components arranged opposite to each other, and the guide components include a long guide plate (231), a main locking mounting seat (233) and a secondary locking mounting seat (234). The guide plate (231) is installed above the transfer platform (21) according to the placement posture of its length direction along the cardboard transfer direction, and a row of guide rollers (232) are installed below the guide plate (231); The main locking mounting seat (233) and the secondary locking mounting seat (234) are mounted on the upper ends of the guide plate (231), wherein the main locking mounting seat (233) is provided with two mounting through holes, the two mounting through holes are arranged up and down, and the secondary locking mounting seat (234) is provided with one mounting through hole, and the main locking mounting seat (233) is located at the end of the guide plate (231) where the protective plate (237) is installed; the guide assembly is mounted on three parallel mounting shafts (235) through the three mounting through holes on the main locking mounting seat (233) and the secondary locking mounting seat (234), and the two ends of the mounting shaft (235) are fixedly connected to the frame (1), wherein a No. 1 ruler (236) is fixed on the mounting shaft (235) that passes through the mounting through hole located on the upper side of the main locking mounting seat (233); The cardboard flattening device (24) is arranged between the two guide components. The cardboard flattening device (24) includes a plurality of flattening components. The number of flattening components is consistent with the number of the No. 1 conveyor belt (221). One flattening component corresponds to one No. 1 conveyor belt (221). The flattening component includes an elongated flattening plate (241). The flattening plate (241) is arranged above the No. 1 conveyor belt (221) according to its length direction and along the cardboard transfer direction. There is a certain distance between the flattening plate (241) and the No. 1 conveyor belt (221). A plurality of through holes (242) are provided on the flattening plate (241). A flattening rolling ball (243) having a diameter slightly smaller than that of the through hole (242) is placed in each through hole (242). The bottom surface of the flattening rolling ball (243) contacts the upper surface of the No. 1 conveyor belt (221). The V-groove cutting device (3) comprises an auxiliary roller (31), a No. 2 auxiliary conveyor belt device (32) and at least one set of V-groove cutting tool devices (33); the auxiliary roller (31) is installed at the output end of the paperboard feeding and transferring device (2); the No. 2 auxiliary conveyor belt device (32) comprises a plurality of No. 2 conveyor belts (325), and a No. 2 supporting roller (321), a No. 3 supporting roller (322), a No. 4 supporting roller (323) and a No. 5 supporting roller (324) arranged in parallel with each other; the plurality of No. 2 conveyor belts (325) are wound around the No. 2 supporting roller (321), the No. 3 supporting roller (322), the No. 4 supporting roller (323) and the No. 5 supporting roller (324); The second supporting roller (321) and the third supporting roller (322) are located above the auxiliary roller (31); the fourth supporting roller (323) and the fifth supporting roller (324) are located below the auxiliary roller (31); a vertical line between the central axis of the second supporting roller (321) and the central axis of the fourth supporting roller (323) intersects with the central axis of the auxiliary roller (31); a vertical line between the central axis of the third supporting roller (322) and the central axis of the fifth supporting roller (324) intersects with the central axis of the auxiliary roller (31); The belt between the No. 2 supporting roller (321) and the No. 5 supporting roller (324) on the No. 2 conveyor belt (325) is attached to the side surface of the auxiliary roller (31) away from the cardboard feeding and transferring device (2); the V-groove cutting tool device (33) comprises a tool holder slide rail (331) and a plurality of tool assemblies (332) mounted on the tool holder slide rail (331), and the number of tool assemblies (332) is determined according to the number of V-grooves required to be cut in one cardboard processing; the tool holder slide rail (331) is mounted on the frame (1) and is located on one side of the auxiliary roller (31); the tool assembly (3 32) comprises a support plate (333), a knife handle (334), a blade mounting seat (335) and two blades (336); the support plate (333) is mounted on a knife holder slide rail (331) and can move along the knife holder slide rail (331); the knife handle (334) is mounted on the support plate (333); the blade mounting seat (335) is mounted on the end of the knife handle (334); the two blades (336) are mounted on the blade mounting seat (335) at a certain angle; the tips of the two blades (336) are against each other and face the auxiliary roller (31); and the vertical distance between the tips of the blades and the surface of the auxiliary roller (31) is adjustable; The cardboard unloading device (4) comprises a No. 3 conveyor belt device (41) and a cardboard collecting platform (42); the input end of the No. 3 conveyor belt device (41) is adjacent to the No. 5 supporting roller (324) and is located below the cardboard loading and transferring device (2); the cardboard collecting platform (42) is arranged at an angle; the cut cardboard is output from the No. 5 supporting roller (324) and then enters the No. 3 conveyor belt device (41), and the No. 3 conveyor belt device (41) delivers the cardboard to the cardboard collecting platform (42); A protective plate (237) is installed at one end of the guide plate (231), and when a first-layer cardboard is placed on the cardboard placement bracket (25), the front end of the first-layer cardboard is located between the two protective plates (237) in the two guide assemblies, and the height of the first-layer cardboard does not exceed the height of the protective plate (237); A No. 1 mounting seat (244) and a No. 2 mounting seat (245) are fixed to both ends of the upper side of the pressing plate (241), and the pressing plate (241) is mounted on three mounting shafts (235) via the No. 1 mounting seat (244) and the No. 2 mounting seat (245), wherein the No. 1 mounting seat (244) is located at the cardboard input end, and a height limiting plate (246) is provided on the No. 1 mounting seat (244) for preventing multiple cardboards from entering between the pressing plate (241) and the No. 1 conveyor belt (221) at the same time; The height limiting plate (246) is vertically arranged, and its top is sleeved on a vertical No. 1 stud (247). The No. 1 stud (247) is installed on the top of the No. 1 mounting seat (244). A compression spring (248) is sleeved on the No. 1 stud (247). The compression spring (248) is placed between the top surface of the height limiting plate (246) and the top surface of the No. 1 mounting seat (244) and is used to apply an upward thrust to the height limiting plate (246) so that the top surface of the height limiting plate (246) fits against the nut of the No. 1 stud (247). The height limiting plate (246) can be lifted and lowered by the No. 1 stud (247). The distance from the bottom surface of the height limiting plate (246) to the upper surface of the No. 1 conveyor belt (221) is greater than one cardboard thickness and less than two cardboard thicknesses. The support plate (333) is provided with a rotating handle (337), a gear (338) is provided at the lower end of the rotating handle (337), a rack (339) and a second ruler (3310) are provided on the tool holder slide rail (331), and the gear (338) and the rack (339) are meshed; the rotating handle (337) is rotated to drive the support plate (333) to move along the tool holder slide rail (331) through the gear and rack transmission, and the second ruler (3310) is used to check the moving distance of the support plate (333); a U-shaped groove (3341) is provided on the tool handle (334), a bolt (3342) is provided in the U-shaped groove (3341), and the bolt (3342) is used to fasten the tool handle (334) to the support plate (333). A No. 2 stud (3311) is installed on the support plate (333), one end of the No. 2 stud (3311) is screwed into one end of the knife handle (334), and the end of the knife handle (334) is provided with a threaded hole matching the No. 2 stud (3311); the bolt (3342) is loosened, and then the No. 2 stud (3311) is rotated to adjust the length of the threaded hole of the end of the knife handle (334) screwed into the No. 2 stud (3311), so as to drive the knife handle (334) to move, thereby adjusting the vertical distance between the knife tip and the surface of the auxiliary roller (31); an air blowing and unloading bent pipe (3312) is installed on the blade mounting seat (335), and the air outlet direction of the air blowing and unloading bent pipe (3312) is toward the point where the knife tips of the two blades (336) abut against each other; It also comprises a waste material output conveyor belt (5); the waste material output conveyor belt (5) is arranged below the V-groove cutting device (3) and is used to convey out the waste material generated during the cutting process.

2. A method for producing a V-groove cutter on a cardboard according to claim 1, characterized in that: Here are the steps: Step 1: Equipment adjustment: The horizontal spacing between the two protective plates (237) is adjusted according to the width of the paperboard to be cut. The specific adjustment method is: loosen the main locking mounting seat (233) and the secondary locking mounting seat (234), refer to the No. 1 ruler (236), push the guide assembly along the mounting shaft (235) until the spacing between the two protective plates (237) is slightly larger than the paperboard width, and then lock the main locking mounting seat (233) and the secondary locking mounting seat (234) on the mounting shaft (235) after adjusting to the right position; The distance from the bottom surface of the height limiting plate (246) to the upper surface of the No. 1 conveyor belt (221) is adjusted according to the thickness of a single cardboard. The specific adjustment method is: screwing the No. 1 stud (247) to change the depth of the lower portion screwed into the No. 1 mounting seat (244), thereby changing the distance from the bottom surface of the height limiting plate (246) to the upper surface of the No. 1 conveyor belt (221), and the distance from the bottom surface of the height limiting plate (246) to the upper surface of the No. 1 conveyor belt (221) is greater than one cardboard thickness and less than two cardboard thicknesses; The number of tool assemblies (332) is determined according to the number of V-grooves required to be cut in the last processing of the cardboard, the tool assembly is installed on the tool holder slide rail (331), and the spacing between the two corresponding tool assemblies (332) is adjusted according to the spacing between two adjacent V-grooves. The specific adjustment method is: rotating the rotating handle (337), through the gear rack transmission, thereby driving the support plate (333) to move along the tool holder slide rail (331), referring to the No. 2 ruler (3310), until the spacing between the two tool assemblies (332) is adjusted to meet the requirements; The vertical distance between the tip of the two blades (336) and the surface of the auxiliary roller (31) is adjusted according to the depth of the V-groove to be processed. The specific adjustment method is: loosen the bolt (3342), and then rotate the second stud (3311) to adjust the length of the second stud (3311) screwed into the threaded hole at the end of the handle (334), so as to drive the handle (334) to move, thereby adjusting the vertical distance between the tip of the blade and the surface of the auxiliary roller (31); Step 2: placing a first-base cardboard on a cardboard placement bracket (25), and positioning the front end of the first-base cardboard between two protective plates (237) in two guide assemblies; Step 3: Start the device. First, the bottom cardboard of the first base cardboard is moved forward under the friction of the No. 1 conveyor belt (221). Due to the effect of the height limiting plate (246), only one cardboard enters between the pressing plate (241) and the No. 1 conveyor belt (221) at the same time. During the transfer process, the guide rollers (232) in the guide devices (23) on both sides of the cardboard guide both sides of the transferred cardboard to prevent the cardboard from running off during the transfer process. The flattening ball (243) flattens the cardboard to prevent the cardboard from tilting. Step 4: After being output from the end of the cardboard loading and transferring device (2), the cardboard enters between the auxiliary roller (31) and the second conveyor belt (325), and the auxiliary roller (31) and the second conveyor belt (325) jointly drive the cardboard to move downward; Step 5: During the downward movement, the tips of the two blades (336) cut a V-shaped groove on the paperboard. The waste generated during the cutting process falls onto the waste output conveyor belt (5) under the blowing action of the air-blowing discharge elbow (3312). The cut paper is transported to the paperboard collection platform (42) via the third conveyor belt device (41).

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