Electromagnetic male die roller and female die roller high-speed cutting online printed matter sampling device

Abstract

The invention discloses an electromagnetic male die roller and female die roller high-speed cutting online printed matter sampling device. High-speed rotation of an electromagnetic male die roller and a female die roller is synchronous with the movement speed of printing paper; an electromagnetic male die is assembled in the electromagnetic male die roller in the radial direction, the electromagnetic male die comprises a telescopic male die, and when the male die rotates to the position making contact with and perpendicular to the paper face, a female die is formed in the corresponding position, making contact with and perpendicular to the paper face, of the female die roller; and the electromagnetic male mold roller and the female mold roller relatively rotate to the corresponding positions, the electromagnetic male mold is instantly electrified, the male mold extends out, the extending male mold bulge correspondingly enters the female mold cavity, the printing paper at the corresponding movement speed is cut, and a sampling object is extracted. According to the sampling device, under the condition that the continuous movement speed V of high-speed printing is larger than or equal to 3.4 m / s, printing sampling objects are extracted on moving printing paper through instant mold pressing cutting, the quality of printed matter is checked and judged, and then the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to a printed matter sampling device, in particular to an electromagnetic male die roller and a female die roller high-speed cutting online printed matter sampling device. Background Art

[0002] At present, when domestic and foreign printed materials are printed online at high speed, it is necessary to stop the machine to cut and sample the printed paper to check the printing quality, which wastes a lot of paper and printing hours every time the machine stops, increasing printing costs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device in view of the deficiencies of the above-mentioned prior art. The electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device can realize instantaneous cutting and sampling in the high-speed moving printing paper when the printed product is moving online at a high speed (≥3.4m / s) and printing does not stop, and the quality of the online high-speed moving printed product can be determined by the sampled printing quality.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: An electromagnetic male mold roller and female mold roller high-speed cutting online printed product sampling device comprises: an electromagnetic male mold roller, a female mold roller and printing paper, the electromagnetic male mold roller and the female mold roller rotate relatively, and the printing paper rolls at a high speed between the electromagnetic male mold roller and the female mold roller; The electromagnetic male die roller and female die roller rotate at high speed in sync with the moving speed of the printing paper.

[0005] The electromagnetic male mold roller is radially equipped with an electromagnetic male mold, which includes a retractable male mold. When the male mold rotates to a position that contacts and is perpendicular to the paper surface, the female mold roller is provided with a female mold at a corresponding position that contacts and is perpendicular to the paper surface.

[0006] The electromagnetic male mold roller and the female mold roller rotate relative to each other to corresponding positions, the electromagnetic male mold is energized instantaneously, the male mold extends, and the extended male mold protrusion enters the female mold cavity accordingly, cutting the printed paper at the corresponding movement speed to extract the sample; the male mold protrusion matches the size of the female mold cavity.

[0007] The electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to its original value.

[0008] The electromagnetic male die also includes a cylindrical steel sleeve, which is seamlessly assembled with the inner wall of the electromagnetic male die roller in the radial direction.

[0009] The male die roller arranged along the center of the electromagnetic male die roller is symmetrically assembled on the outer wall of the cylindrical steel sleeve.

[0010] A circular step is formed on the circumferential side of the inner wall of the cylindrical steel sleeve, and the circular step extends from the middle position of the cylindrical steel sleeve to one end thereof. The circular step is used to support and assemble the suction cup type electromagnet.

[0011] The inner wall of the annular step is fitted with a male mold sleeve along the circumferential direction, and a circular annular boss is formed at the lower position of the inner wall of the male mold sleeve. The circular annular boss is used to support and assemble the retractable male mold.

[0012] The male mold is connected to a suction cup type electromagnet, and the suction cup type electromagnet can drive the male mold to extend or retract.

[0013] The suction cup type electromagnet comprises a cylindrical electromagnet core with a central through hole, a coil and an armature body.

[0014] An annular protrusion is formed at the middle position of the outer circumference of the electromagnet core. The electromagnet core is fitted and assembled with the circular step through the annular protrusion, and the coil is wound inside the electromagnet core.

[0015] The armature body is in the shape of a disk, and its outer circumference size matches the outer circumference size of the electromagnet core.

[0016] An armature column which is plugged and assembled with the central through hole of the electromagnet core is arranged at the center of the armature body, and the armature column can slide in the central through hole.

[0017] The free end of the armature column is connected to the male mold.

[0018] A support sleeve is arranged along the peripheral side of the suction cup type electromagnet.

[0019] A movable armature body is arranged between the supporting sleeve and the electromagnet core, and a movement space of the armature body is formed.

[0020] The height dimension of the armature column is d1, the height dimension of the electromagnet core is d2, and the height dimension of the armature body movement space is d3.

[0021] Among them, d1>d2, △d=d1-d2, d3≥△d; and △d≥printing paper thickness.

[0022] The male mold includes a male mold column, a spring baffle and a male mold protrusion.

[0023] The male mold column is plug-fitted and assembled with the annular boss and the sizes are matched, and the male mold column can slide in the annular boss; a spring baffle is provided at one end of the male mold column, and the spring baffle is connected to the free end of the armature column.

[0024] The other end of the male mold column is provided with a male mold protrusion.

[0025] A spring installation space is formed between the spring baffle and the annular boss, and the spring is wound along the circumference of the male mold column in the spring installation space.

[0026] The electromagnet core is provided with an energizing device.

[0027] The electromagnetic core is energized instantaneously, the armature body moves toward the electromagnetic core, and the armature column pushes the male mold to extend, so that the male mold protrudes higher than the outer circumference of the electromagnetic male mold roller, and the higher dimension is greater than the thickness of the printing paper.

[0028] When the electromagnetic core is powered off, the armature moves away from the electromagnetic core due to the action of the spring, the male die shrinks, and the outer circumference size of the electromagnetic male die roller returns to its original value.

[0029] The power supply device includes an electromagnet wire, an insulator, a conductive rotating body and an electrode brush; the cylindrical conductive rotating body is fixed to one end of the male mold roller shaft through the insulator; the electromagnet wire is passed through the inside of the male mold roller shaft, one end of which passes through the cylindrical steel sleeve and the electromagnet core to be connected to the coil, and the other end is connected to the conductive rotating body; the electrode brush is arranged on the outer peripheral wall of the conductive rotating body, the positive pole of the suction cup electromagnet is powered by the electrode brush, and the negative pole of the suction cup electromagnet is grounded through the roller bearing bracket.

[0030] It also includes a counterweight device; the counterweight device includes a cylindrical counterweight sleeve with a center hole and a counterweight body; the counterweight sleeve is assembled at the support sleeve along the inner wall of the cylindrical steel sleeve; the counterweight body has a protrusion that is plugged and assembled with the center hole; the counterweight body is assembled in the counterweight sleeve so that the circumferential size of the electromagnetic male mold roller at this location is at the original value. The locking ring is assembled at the gap around the male mold protrusion.

[0031] A gear A is provided at the other end of the male mold roller shaft; a gear B is provided at one end of the female mold roller shaft in the center of the female mold roller, and a digital servo motor is provided at the other end; gear B and gear A are located on the same side, and gear B drives gear A to engage and transmit.

[0032] A sampling method of an electromagnetic male die roller and a female die roller high-speed cutting online printed product sampling device comprises the following steps: S1. The digital servo motor drives the female mold roller shaft in the center of the female mold roller to rotate gear B, which then drives gear A to rotate synchronously, and gear A drives the electromagnetic male mold roller to rotate synchronously. The electromagnetic male mold roller and the female mold roller realize relative rotation, and the printing paper moves under high-speed rolling between the electromagnetic male mold roller and the female mold roller; the high-speed rotation of the electromagnetic male mold roller and the female mold roller is synchronized with the movement speed of the printing paper.

[0033] S2, the electromagnetic male mold roller and the female mold roller rotate relative to each other to corresponding positions. At this time, the retractable male mold and the female mold rotate to the position of contact and perpendicular to the paper surface, and the suction cup electromagnet in the electromagnetic male mold is instantly powered by the electrode brush.

[0034] S3. The suction cup electromagnet is instantly powered to generate a strong magnetic field to attract the armature body. The armature body moves downward to push the male mold to move, so that the male mold is higher than the circumference of the electromagnetic male mold roller to form a bulge, and the raised size is greater than the thickness of the printing paper.

[0035] S4. The protruding male mold protrusion can enter the female mold cavity accordingly, cut the printed paper at the corresponding moving speed, and extract the printed sample.

[0036] S5, the electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions. At this time, the instantaneous power supply ends, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to the original value.

[0037] The present invention has the following beneficial effects: 1. The present invention provides an electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device, which can meet the high-speed printing continuous movement speed V ≥ 3.4m / s, and can instantly mold and cut and extract printed samples on the moving printing paper to inspect and determine the quality of the printed product, thereby greatly improving production efficiency.

[0038] 2. The suction cup electromagnet can instantly push out the male mold by instantaneously energizing the power supply device. The male mold protrusion and the female mold cavity are combined with each other to form a male and female opening and closing mold for rotating and cutting printing paper; the male and female opening and closing mold can cut circular or other shaped printing paper online.

[0039] 3. When the instantaneous power supply ends, the electromagnetic male mold is not energized, the male mold retracts through the action of the spring, and the outer circumference size of the electromagnetic male mold roller returns to its original value. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The invention discloses a structural schematic diagram of an electromagnetic male die roller and a female die roller high-speed cutting online printed product sampling device.

[0041] Figure 2 The electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device of the present invention is shown in Figure (A) as a front view of the device, and Figure (B) as an internal cross-sectional view of the device; Figure 3 Schematic diagram of the electromagnetic male die roller male die extension structure of the present invention, wherein Figure (D) is a front sectional view, and Figure (E) is a CC sectional view; Figure 4 It is a schematic diagram of the male die contraction structure of the electromagnetic male die roller of the present invention.

[0042] Among them are: 100 is an electromagnetic male die roller, 200 is a female die roller, 300 is a digital servo motor, 400 is a roller bearing bracket; 500 is a gear B, and 600 is a gear A; 9 is a locking ring, 10 is a male mold, 11 is a spring, 12 is a male mold sleeve, 13 is a cylindrical steel sleeve, 14 is an electromagnet core, 15 is a coil, 16 is an armature body, 17 is a supporting sleeve, 18 is a counterweight body, 19 is a counterweight body sleeve, 20 is a female mold; 30 is printing paper, 40 is a roller shaft, 41 is an insulator, 42 is an electromagnet wire, 43 is a conductive rotating body, 44 is an electrode brush, and 45 is an armature movement space. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0044] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second" and the like do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0045] like Figure 1 As shown, an electromagnetic male mold roller and female mold roller high-speed cutting online printed product sampling device includes: an electromagnetic male mold roller 100, a female mold roller 200 and printing paper 30, the electromagnetic male mold roller and the female mold roller rotate relatively, and the printing paper moves with high-speed rolling between the electromagnetic male mold roller and the female mold roller; the high-speed rotation of the electromagnetic male mold roller and the female mold roller is synchronized with the movement speed of the printing paper.

[0046] Understandably, combined Figure 1 When the printing paper moves at a high speed of ≥3.4m / s and is continuously printed online, the printing paper is rolled between the electromagnetic male die roller and the female die roller, and the electromagnetic male die roller and the female die roller rotate at a relatively high speed and are synchronized with the movement speed of the printing paper.

[0047] like Figure 2 As shown, the electromagnetic male mold roller is radially equipped with an electromagnetic male mold, which includes a retractable male mold 10. When the male mold rotates to a position that contacts and is perpendicular to the paper surface, the female mold roller is provided with a female mold 20 at a corresponding position that contacts and is perpendicular to the paper surface.

[0048] Further, the female mold is processed into the form of a cavity.

[0049] The electromagnetic male mold roller and the female mold roller rotate relative to each other to corresponding positions, the electromagnetic male mold is energized instantaneously, the male mold extends, and the extended male mold protrusion enters the female mold cavity accordingly, cutting the printed paper at the corresponding movement speed to extract the sample; the male mold protrusion matches the size of the female mold cavity.

[0050] The electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to its original value.

[0051] like Figure 3-4 As shown, the electromagnetic male die also includes a cylindrical steel sleeve 13, which is seamlessly assembled with the inner wall of the electromagnetic male die roller in the radial direction.

[0052] It can be understood that both the electromagnetic male mold roller and the female mold roller include a roller shaft 40, which is the rotating roller shaft in the center of the electromagnetic male mold roller and the female mold roller. The rotating roller shaft in the center of the electromagnetic male mold roller is the male mold roller shaft, and the rotating roller shaft in the center of the female mold roller is the female mold roller shaft; that is, the roller shaft includes the male mold roller shaft and the female mold roller shaft.

[0053] The male die roller arranged along the center of the electromagnetic male die roller is symmetrically assembled on the outer wall of the cylindrical steel sleeve.

[0054] Understandably, combined Figure 3-4 , the retractable male mold 10 is assembled in a cylindrical steel sleeve 13, which is the body of the electromagnetic male mold; In order to meet the assembly requirements of the retractable male mold, a circular step is formed on the circumferential side of the inner wall of the cylindrical steel sleeve, which extends from the middle position of the cylindrical steel sleeve to one end thereof, and is used to support and assemble the suction cup electromagnet; the inner wall of the circular step is fitted with a male mold sleeve 12 along the circumferential direction, and a circular boss is formed at the lower position of the inner wall of the male mold sleeve, and the circular boss is used to support and assemble the retractable male mold.

[0055] The male mold is connected to a suction cup type electromagnet, and the suction cup type electromagnet can drive the male mold to extend or retract.

[0056] Understandably, combined Figure 3-4 The suction cup type electromagnet installed at the circular step will not interfere with the male mold sleeve installed on the inner wall of the circular step.

[0057] Understandably, combined Figure 3-4 , the suction cup electromagnet can be spaced a certain distance from the male mold sleeve.

[0058] The suction cup type electromagnet comprises a cylindrical electromagnet core 14 with a central through hole, a coil 15 and an armature body 16.

[0059] That is, the electromagnet core 14, the coil 15, and the armature body 16 constitute a suction cup electromagnet; further, the suction cup electromagnet is a suction cup electromagnet using a safe DC voltage; specifically, the suction cup electromagnet is a high-power suction cup electromagnet with a DC voltage less than 36V, which is built into the electromagnetic male mold.

[0060] An annular protrusion is formed at the middle position of the outer circumference of the electromagnet core. The electromagnet core is fitted and assembled with the circular step through the annular protrusion, and the coil is wound inside the electromagnet core.

[0061] The armature body is in the shape of a disk, and its outer circumference size matches the outer circumference size of the electromagnet core.

[0062] An armature column which is plugged and assembled with the central through hole of the electromagnet core is arranged at the center of the armature body, and the armature column can slide in the central through hole.

[0063] The free end of the armature column is connected to the male mold.

[0064] A support sleeve 17 is mounted along the circumference of the suction cup type electromagnet.

[0065] An armature movement space 45 is formed between the support sleeve and the electromagnet core.

[0066] Understandably, combined Figure 3-4 The annular protrusion support is assembled at the circular step, the electromagnet core is fitted with the circular step, the outer circumference size of the disc-shaped armature body matches the outer circumference size of the electromagnet core, and there must be a circular gap between the outer circumference side of the suction cup electromagnet, that is, the outer circumference side of the electromagnet core and the armature body and the inner wall of the cylindrical steel sleeve; the support sleeve is assembled at the circular gap.

[0067] It can be understood that a movable armature body is arranged between the support sleeve and the electromagnet core to form an armature body movement space.

[0068] Specifically, Figure 4 As shown, the armature body movement space provides sufficient movement space for the armature body to engage and return, so the movement space needs to be greater than or equal to the space actually required for the armature body to move. In addition, the support sleeve also plays a role in providing the sliding amount of the male mold.

[0069] The height dimension of the armature column is d1, the height dimension of the electromagnet core is d2, and the height dimension of the armature body movement space is d3.

[0070] Among them, d1>d2, △d=d1-d2, d3≥△d; and △d≥printing paper thickness.

[0071] The male mold includes a male mold column, a spring baffle and a male mold protrusion.

[0072] The male mold column is plug-fitted and assembled with the annular boss and the sizes are matched, and the male mold column can slide in the annular boss; a spring baffle is provided at one end of the male mold column, and the spring baffle is connected to the free end of the armature column.

[0073] The other end of the male mold column is provided with a male mold protrusion.

[0074] A spring installation space is formed between the spring baffle and the annular boss, and the spring is wound along the circumference of the male mold column in the spring installation space.

[0075] Understandably, combined Figure 3-4 In order to make the sliding effect of the male mold better, the spring baffle can be selected as a circular baffle that matches the inner wall size of the male mold sleeve; thereby a closed circular spring installation space is formed between the circular baffle and the circular boss.

[0076] The electromagnet core is provided with an energizing device.

[0077] The electromagnetic core is energized instantaneously, the armature body moves toward the electromagnetic core, and the armature column pushes the male mold to extend, so that the male mold protrudes higher than the outer circumference of the electromagnetic male mold roller, and the higher dimension is greater than the thickness of the printing paper.

[0078] Understandably, combined Figure 3-4 , the protruding dimension is △d, and △d is slightly larger than the thickness of the printing paper.

[0079] When the electromagnetic core is powered off, the armature moves away from the electromagnetic core due to the action of the spring, the male die shrinks, and the outer circumference size of the electromagnetic male die roller returns to its original value.

[0080] It can be understood that when the suction cup electromagnet is not energized, the suction cup electromagnet loses its strong electromagnetic field. At this time, the spring acts to push the male mold and the armature body connected thereto toward the direction close to the support sleeve; Figure 4 The electromagnetic core hinders the further movement of the male die, and the male die protrusion shrinks, so that the outer circumference size of the electromagnetic male die roller returns to its original value.

[0081] It can be understood that the amount of movement of the male mold is Δd.

[0082] It can be understood that when the male mold is in the extended or retracted state, there may be a certain installation gap between its outer peripheral side and the electromagnetic male mold roller wall, and seamless assembly is achieved by setting a locking ring 9 at this installation gap; that is, the locking ring 9 is assembled at the gap on the peripheral side of the male mold protrusion.

[0083] It can be understood that the spring baffle, the male mold column and the male mold protrusion constitute the male mold, and the male mold serves as a moving component, which realizes sliding movement in the male mold sleeve hole and the lock ring hole through the spring and suction cup type electromagnet connected thereto.

[0084] The power supply device includes an electromagnet wire 42, an insulator 41, a conductive rotating body 43 and an electrode brush 44; the cylindrical conductive rotating body is fixed to one end of the male mold roller shaft through the insulator; the electromagnet wire is passed through the inside of the male mold roller shaft, one end of which passes through the cylindrical steel sleeve and the electromagnet core to be connected to the coil, and the other end is connected to the conductive rotating body; the electrode brush is arranged on the outer peripheral wall of the conductive rotating body, the positive pole of the suction cup electromagnet is powered by the electrode brush, and the negative pole of the suction cup electromagnet is grounded through the roller bearing bracket.

[0085] It can be understood that the insulator, the electromagnet wire, the conductive rotating body, and the electrode brush constitute the positive pole of the suction cup electromagnet; the electromagnet positive wire and the conductive rotating body are electrically connected, and the electrode brush supplies power to the suction cup electromagnet; the electromagnet core shell serves as the negative pole of the suction cup electromagnet, connecting the cylindrical steel sleeve and the electromagnetic male mold roller, and is grounded through the roller bearing bracket 400.

[0086] It also includes a counterweight device; the counterweight device includes a cylindrical counterweight sleeve 19 with a center hole and a counterweight body 18; the counterweight sleeve is assembled on the support sleeve along the inner wall of the cylindrical steel sleeve; the counterweight body has a protrusion that is plugged and assembled with the center hole; the counterweight body is assembled in the counterweight sleeve so that the circumferential size of the electromagnetic male mold roller at this location is at the original value.

[0087] Among them, the counterweight body plays a role in balancing the rotational inertia.

[0088] A gear A600 is provided at the other end of the male die roller shaft; a gear B500 is provided at one end of the female die roller shaft in the center of the female die roller, and a digital servo motor is provided at the other end; gear B and gear A are located on the same side, and gear B drives gear A to engage and transmit.

[0089] Among them, gear B500 and gear A600 have the same number of teeth, module and diameter.

[0090] It can be understood that the digital servo motor 300 drives the female mold roller shaft at the center of the female mold roller 200 to rotate the gear B500, the gear B500 synchronously drives the gear A600 to rotate, and the gear A synchronously drives the electromagnetic male mold roller to rotate.

[0091] In one embodiment, further, a sampling method of an electromagnetic male die roller and a female die roller high-speed cutting online printed product sampling device comprises the following steps: S1. The digital servo motor drives the female mold roller shaft in the center of the female mold roller to rotate gear B, which then drives gear A to rotate synchronously, and gear A drives the electromagnetic male mold roller to rotate synchronously. The electromagnetic male mold roller and the female mold roller realize relative rotation, and the printing paper moves under high-speed rolling between the electromagnetic male mold roller and the female mold roller; the high-speed rotation of the electromagnetic male mold roller and the female mold roller is synchronized with the movement speed of the printing paper.

[0092] S2, the electromagnetic male mold roller and the female mold roller rotate relative to each other to corresponding positions. At this time, the retractable male mold and the female mold rotate to the position of contact and perpendicular to the paper surface, and the suction cup electromagnet in the electromagnetic male mold is instantly powered by the electrode brush.

[0093] It can be understood that the positive mold of the electromagnetic positive mold roller and the negative mold of the negative mold roller are installed in corresponding positions; corresponding position installation means that when the retractable positive mold rotates to a position in contact with and perpendicular to the paper surface, the negative mold rotates to a corresponding position in contact with and perpendicular to the paper surface.

[0094] S3. The suction cup electromagnet is instantly powered to generate a strong magnetic field to attract the armature body. The armature body moves downward to push the male mold to move, so that the male mold is higher than the circumference of the electromagnetic male mold roller to form a bulge, and the raised size is greater than the thickness of the printing paper.

[0095] It can be understood that the raised dimension of the protrusion only needs to be slightly larger than the thickness of the printing paper.

[0096] S4. The protruding male mold protrusion can enter the female mold cavity accordingly, cut the printed paper at the corresponding moving speed, and extract the printed sample.

[0097] It can be understood that at this time, the male mold protrusion and the female mold cavity combine with each other to squeeze and cut the printed paper, thereby extracting the printed sample online.

[0098] It can be understood that the shape of the sample is determined according to the shape of the male mold protrusion; it can be a disc or other shapes.

[0099] S5, the electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions. At this time, the instantaneous power supply ends, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to the original value.

[0100] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device, characterized in that: include: The electromagnetic male mold roller, the female mold roller and the printing paper, the electromagnetic male mold roller and the female mold roller rotate relatively, and the printing paper rolls at a high speed between the electromagnetic male mold roller and the female mold roller; the electromagnetic male mold roller and the female mold roller rotate at a high speed synchronously with the movement speed of the printing paper; The electromagnetic male mold roller is radially equipped with an electromagnetic male mold, which includes a retractable male mold. When the male mold rotates to a position that contacts and is perpendicular to the paper surface, the female mold roller is provided with a female mold at a corresponding position that contacts and is perpendicular to the paper surface. The electromagnetic male mold roller and the female mold roller rotate relative to each other to the corresponding position, the electromagnetic male mold is energized instantaneously, the male mold extends, and the extended male mold protrusion enters the female mold cavity accordingly, cutting the printed paper with the corresponding movement speed to extract the sample; the male mold protrusion matches the size of the female mold cavity; The electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to its original value.

2. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 1 is characterized in that: The electromagnetic male die also includes a cylindrical steel sleeve, which is seamlessly assembled with the inner wall of the electromagnetic male die roller in the radial direction; The male die roller arranged along the center of the electromagnetic male die roller is symmetrically assembled on the outer wall of the cylindrical steel sleeve; A circular step is formed on the inner wall of the cylindrical steel sleeve, and the circular step extends from the middle of the cylindrical steel sleeve to one end thereof, and the circular step is used to support and assemble the suction cup type electromagnet; The inner wall of the annular step is fitted with a male mold sleeve along the circumferential direction, and a circular annular boss is formed at the lower part of the inner wall of the male mold sleeve, and the circular annular boss is used to support and assemble the retractable male mold; The male mold is connected to a suction cup type electromagnet, and the suction cup type electromagnet can drive the male mold to extend or retract.

3. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 2 is characterized in that: The suction cup type electromagnet comprises a cylindrical electromagnet core with a central through hole, a coil and an armature body; An annular protrusion is formed at the middle position of the outer circumference of the electromagnet core, and the electromagnet core is fitted with the circular step through the annular protrusion, and the coil is wound inside the electromagnet core; The armature body is disc-shaped, and its outer circumference size matches that of the electromagnet core; An armature column is provided at the center of the armature body and is plugged and assembled with the center through hole of the electromagnet core. The armature column can slide in the center through hole. The free end of the armature column is connected to the male mold; A support sleeve is installed along the circumference of the suction cup type electromagnet; A movable armature body is arranged between the supporting sleeve and the electromagnet core, and a movement space of the armature body is formed.

4. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 3 is characterized in that: The height dimension of the armature column is d1, the height dimension of the electromagnet core is d2, and the height dimension of the armature body movement space is d3; wherein, d1>d2, △d=d1-d2, d3≥△d; and △d≥printing paper thickness.

5. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 2 is characterized in that: The male mold includes a male mold column, a spring baffle and a male mold protrusion; The male mold column is plug-fitted and assembled with the annular boss and the sizes are matched, and the male mold column can slide in the annular boss; a spring baffle is provided at one end of the male mold column, and the spring baffle is connected to the free end of the armature column; A male mold protrusion is provided at the other end of the male mold column; A spring installation space is formed between the spring baffle and the annular boss, and the spring is wound along the circumference of the male mold column in the spring installation space.

6. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 3 is characterized in that: The electromagnet core is provided with an energizing device; The electromagnetic core is energized instantaneously, and the armature body moves toward the electromagnetic core. The armature column pushes the male die to extend, so that the male die protrudes higher than the outer circumference of the electromagnetic male die roller, and the higher dimension is greater than the thickness of the printing paper. When the electromagnetic core is powered off, the armature moves away from the electromagnetic core due to the action of the spring, the male die shrinks, and the outer circumference size of the electromagnetic male die roller returns to its original value.

7. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 6 is characterized in that: The power supply device includes an electromagnet wire, an insulator, a conductive rotating body and an electrode brush; the cylindrical conductive rotating body is fixed to one end of the male mold roller shaft through the insulator; the electromagnet wire is passed through the inside of the male mold roller shaft, one end of which passes through the cylindrical steel sleeve and the electromagnet core to be connected to the coil, and the other end is connected to the conductive rotating body; the electrode brush is arranged on the outer peripheral wall of the conductive rotating body, the positive pole of the suction cup electromagnet is powered by the electrode brush, and the negative pole of the suction cup electromagnet is grounded through the roller bearing bracket.

8. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 3 is characterized in that: It also includes a counterweight device and a locking ring; the counterweight device includes a cylindrical counterweight sleeve with a center hole and a counterweight body; the counterweight sleeve is assembled on the support sleeve along the inner wall of the cylindrical steel sleeve; the counterweight body has a protrusion that is plugged and assembled with the center hole; the counterweight body is assembled in the counterweight sleeve so that the circumferential size of the electromagnetic male mold roller at this location is at the original value; the locking ring is assembled at the gap on the circumferential side of the male mold protrusion.

9. The electromagnetic male and female roller high-speed cutting online printed product sampling device according to claim 2 is characterized in that: A gear A is provided at the other end of the male mold roller shaft; a gear B is provided at one end of the female mold roller shaft in the center of the female mold roller, and a digital servo motor is provided at the other end; gear B and gear A are located on the same side, and gear B drives gear A to engage and transmit.

10. The sampling method of the electromagnetic male die roller and female die roller high-speed cutting online printed product sampling device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The digital servo motor drives the female mold roller shaft in the center of the female mold roller to rotate gear B, which in turn drives gear A to rotate, and gear A in turn drives the electromagnetic male mold roller to rotate, so that the electromagnetic male mold roller and the female mold roller can rotate relative to each other, and the printing paper can be rolled and pressed at high speed between the electromagnetic male mold roller and the female mold roller; the high-speed rotation of the electromagnetic male mold roller and the female mold roller is synchronized with the movement speed of the printing paper; S2, the electromagnetic male mold roller and the female mold roller rotate relative to each other to the corresponding position. At this time, the retractable male mold and the female mold rotate to the position of contact and perpendicular to the paper surface, and the suction cup electromagnet in the electromagnetic male mold is instantly powered by the electrode brush; S3, the suction cup type electromagnet is instantly powered to generate a strong magnetic field to attract the armature body, and the armature body moves downward to push the male mold to move, so that the male mold is higher than the circumference of the electromagnetic male mold roller to form a bulge, and the size of the protrusion is greater than the thickness of the printing paper; S4, the protruding male mold protrusion can enter the female mold cavity accordingly, cut the printed paper at the corresponding moving speed, and extract the printed sample; S5, the electromagnetic male mold roller and the female mold roller rotate to non-corresponding positions. At this time, the instantaneous power supply ends, the electromagnetic male mold is not energized, the male mold shrinks, and the outer circumference size of the electromagnetic male mold roller returns to the original value.

Images