Printing size device

Abstract

The present invention relates to the field of packaging equipment, and provides a printing size device. The device includes a printing roller assembly and a mounting seat, wherein the mounting seat is formed with a receiving groove for inserting the printing roller assembly, and the side wall of the receiving groove is provided with a first guide portion; the printing roller assembly includes a font size support plate, a first clamping plate, and a second clamping plate, and the font size support plate is provided with a second guide portion that is slidably matched with the first guide portion on the side facing the first clamping plate, and the second guide portion is exposed from the first clamping plate; a plurality of mounting grooves for installing font size blocks are provided on the working surface of the font size support plate along its circumference, and the first plug-in section and the first plug-in section are formed on the opposite surfaces of the font size support plate and the first clamping plate, respectively, and the font size block is formed with a second plug-in section on the side facing the first clamping plate, and the first plug-in section and the second plug-in section are spliced ​​into a second plug-in section for matching with the first plug-in section. The present invention not only eliminates the problem of wrong installation direction of font size blocks from the root, but also improves the efficiency of replacing font size blocks.

Description

Technical Field

[0001] The invention relates to the field of packaging equipment, and in particular to a printing number device. Background Art

[0002] The packaging machine is a device that packages products, using wrapping paper to protect the products and improve their aesthetics. Taking the carton packaging machine as an example, the carton packaging machine includes an entry unit, a carton paper magazine, a printing roller, a corresponding roller, a pusher, a first turret, a second turret and a conveying mechanism, wherein the entry unit includes five detectors located above the entry port and arranged in parallel. When the carton packaging machine is running, the upper and lower cigarette boxes are fed into the carton packaging machine as a group. When the five detectors of the entry unit all send out signals, it means that there are five groups of cigarette boxes arriving at the entry unit, with a total of ten packs. At the same time, the carton paper in the carton paper magazine passes through the gap between the printing roller and the corresponding roller, and is then transported to the sleeve by the conveying roller. During the process of conveying the carton paper, the printing roller and the corresponding roller print the font size on the carton paper. The printed carton paper and the ten-pack cigarette box are pushed into the first turret and the second turret in sequence by the pusher. The first turret folds the carton paper onto the carton, and the second turret folds and heat-seals the long edge of the carton paper. After that, the carton is sent into the conveying mechanism, and the two end surfaces of the carton paper are folded and heat-sealed in the conveying mechanism.

[0003] Due to the different sales locations and processing shifts of the packaging machines, the steel printing number blocks on the printing rollers need to be replaced many times. Figure 1 As shown, the printing roller generally includes a first clamping block 100, a second clamping block 110 and an adjusting block 120. The first clamping block 100 is fixedly connected to the second clamping block 110 by a clamping screw 140. A plurality of steel-printed number blocks 130 are clamped between the first clamping block 100 and the second clamping block 110. The adjusting block 120 is fixed to the second clamping block 110 by a clamping screw. When the steel-printed number block 130 needs to be replaced: first, the clamping screw 140 is loosened, and the first clamping block 100 and the second clamping block 110 are pried apart; then, the steel-printed number block 130 to be replaced is pulled out from between the first clamping block 100 and the second clamping block 110; finally, a new steel-printed number block 130 is inserted between the first clamping block 100 and the second clamping block 110, and the clamping screw 140 is tightened again. Since the steel-printed number block 130 is a rectangular structure, it is necessary to carefully check the directions of the letters and numbers on the upper surface of the steel-printed number block 130 during installation. This not only invisibly prolongs the time for replacing the steel-printed number block 130, but also during actual operation, it is very easy for the staff to install the steel-printed number block 130 in the wrong direction, which will result in incorrect printed numbers and affect product quality. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. To this end, the present invention provides a font size printing device with a simple structure and an anti-misinsertion function to prevent the font size block from being installed in the wrong direction and improve the efficiency of changing the font size.

[0005] According to an embodiment of the present invention, a printing size device includes a printing roller assembly and a mounting seat, the mounting seat is formed with a receiving groove for inserting the printing roller assembly, and the side wall of the receiving groove is provided with a first guide portion; the printing roller assembly includes a font size support plate, a first clamping plate and a second clamping plate, the font size support plate is clamped between the first clamping plate and the second clamping plate; the font size support plate is provided with a second guide portion that slidably cooperates with the first guide portion on the side facing the first clamping plate, and the second guide portion is exposed from the first clamping plate; the working surface of the font size support plate is an arc surface, and a plurality of mounting grooves for installing font size blocks are opened on the arc surface along its circumference, the opposite surfaces of the font size support plate and the first clamping plate are respectively formed with a first plug-in section and a first plug-in portion, the font size block is formed with a second plug-in section on the side facing the first clamping plate, and the first plug-in section and the second plug-in section are spliced ​​into a second plug-in portion for cooperating with the first plug-in portion.

[0006] With the printing size device according to the embodiment of the present invention, the staff does not need to check the direction of the letters and numbers on the surface of the font size block during the entire installation process. During the installation process, as long as the first clamping plate and the second clamping plate can clamp the font size block on the font size support plate, it means that the font size block is not installed upside down. At the same time, as long as the print roller assembly can be installed into the mounting seat, it means that the print roller assembly is not installed upside down. This not only eliminates the problem of the wrong installation direction of the font size block from the root, but also improves the efficiency of replacing the font size block.

[0007] In addition, the printing size device according to the embodiment of the present invention may also have the following additional technical features:

[0008] According to an embodiment of the present invention, one of the first guide portion and the second guide portion is a guide key, and the other is a guide groove; one of the first plug-in portion and the second plug-in portion is a convex strip, and the other is a concave groove.

[0009] According to an embodiment of the present invention, the width of the font size block gradually decreases from its upper surface to its lower surface, and the shape of the mounting groove is adapted to the shape of the font size block.

[0010] According to one embodiment of the present invention, the mounting seat includes a mounting seat body, a sliding rod, a slider and a spring, the accommodating groove is formed in the middle of the mounting seat body, and the two sides of the top of the mounting seat body are respectively provided with a first through hole and a second through hole that are connected to the accommodating groove and are coaxial; the first end of the sliding rod forms a limiting portion, and the second end passes through the first through hole, the accommodating groove and the second through hole in sequence and is connected to the locking member; the spring is sleeved on the sliding rod, and the spring is abutted on the limiting portion, for driving the sliding rod to move in the direction from the second through hole to the first through hole; the slider is slidably sleeved on the sliding rod, one end of the slider is abutted on the locking member, and the other end is formed with a guiding inclined surface for guiding the insertion of the printing roller assembly; the bottom of the font size support plate, the first clamping plate and the second clamping plate are provided with avoidance holes for the sliding rod to pass through.

[0011] According to one embodiment of the present invention, the mounting seat body includes a first support plate, a second support plate and a base, the first support plate and the second support plate are fixed to the base by a first fastener, and the first support plate and the second support plate are formed with an upper semicircular hole on the side facing the base; the base is formed with a lower semicircular hole on the side facing the mounting seat body, and the upper semicircular hole and the lower semicircular hole are jointly arranged to form an axial hole; the first support plate is connected to the second support plate by a second fastener, and the first support plate is formed with a recessed area on the side facing the second support plate to jointly form the accommodating groove with the second support plate; the first through hole and the second through hole are respectively formed on the top of the first support plate and the second support plate.

[0012] According to one embodiment of the present invention, the mounting seat body also includes an adjusting bolt, and a threaded hole for installing the adjusting bolt is longitudinally opened through the base, the threaded hole is connected to the accommodating groove, and the top of the adjusting bolt protrudes out of the threaded hole to be supported against the bottom surface of the printing roller assembly.

[0013] According to one embodiment of the present invention, the slider includes a sliding column, the sliding column axially penetrates through a mounting hole for inserting the sliding rod, the end face of the sliding column facing the first through hole is formed with the guiding inclined surface, the guiding inclined surface includes an upper inclined surface and a lower inclined surface, the upper inclined surface extends outward from top to bottom, and the lower inclined surface extends outward from bottom to top; the side wall of the end of the sliding column facing away from the first through hole forms a limiting boss, and the limiting boss is arranged between the locking piece and the mounting seat body, and is used to cooperate with the locking piece and the mounting seat body.

[0014] According to one embodiment of the present invention, an anti-rotation groove parallel to the axial direction of the sliding rod is formed on the bottom surface of the sliding column, and a socket penetrating through the mounting seat body is formed on the inner wall of the second through hole, an anti-rotation part is fixed in the socket, and an end of the anti-rotation part protrudes out of the socket and slidably cooperates with the anti-rotation groove.

[0015] According to an embodiment of the present invention, the first through hole is a stepped hole, the large end of the stepped hole faces the limiting portion, and the two ends of the spring are respectively disposed on the step surfaces of the limiting portion and the stepped hole.

[0016] According to one embodiment of the present invention, it also includes an auxiliary roller assembly arranged opposite to the printing roller assembly, the auxiliary roller assembly is formed by splicing two metal semicircular rollers, and the two metal semicircular rollers are fixedly connected by a third fastener.

[0017] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0018] The present invention has a simple structure and is easy to operate. By respectively arranging the first plug-in section and the first plug-in portion on the opposite surfaces of the font size support plate and the first clamping plate, and arranging the second plug-in section for splicing with the first plug-in section on the side of the font size block facing the first clamping plate, it is possible to avoid the font size block from being inserted in reverse. If the font size block is inserted in reverse, the second plug-in section cannot be spliced ​​with the first plug-in section to form the second plug-in portion, and then the first plug-in portion of the first clamping plate cannot be matched and installed on the font size support plate. In addition, the present invention arranges the first guide portion on the accommodating groove of the mounting seat, and arranges the second guide portion on the side of the font size support plate facing the first clamping plate, so as to avoid the entire printing roller assembly from being inserted in reverse. If the printing roller assembly is installed in reverse, the second guide portion of the printing roller assembly cannot be matched and installed on the mounting seat. It can be seen that during the entire installation process, the staff does not need to check the direction of the letters and numbers on the surface of the font size block. During the installation process, as long as the first clamping plate and the second clamping plate can clamp the font size block on the font size support plate, it means that the font size block is not installed upside down. At the same time, as long as the print roller assembly can be installed into the mounting seat, it means that the print roller assembly is not installed upside down. This not only eliminates the problem of incorrect installation of the font size block from the root, but also improves the efficiency of replacing the font size block.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of an existing printing roller;

[0022] Figure 2 is a schematic structural diagram of a printing roller assembly provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a mounting base provided by an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of one angle of a font size support plate provided by an embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of another angle of the font size support plate provided by an embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of a first clamping plate provided in an embodiment of the present invention;

[0027] Figure 7 is a schematic structural diagram of a mounting base (without a base) provided in an embodiment of the present invention;

[0028] Figure 8 is a schematic structural diagram of a base provided by an embodiment of the present invention;

[0029] Fig. 9 is a schematic structural diagram of a slider provided by an embodiment of the present invention;

[0030] Fig.10 is a schematic diagram of the structure of a font size block provided by an embodiment of the present invention;

[0031] Fig.11 It is a schematic diagram of the structure of a printing size device provided in an embodiment of the present invention.

[0032] Reference numerals:

[0033] 130, steel stamp number block; 140, clamping screw; 200, print roller assembly;

[0034] 210, font size support plate; 211, second guide portion; 212, mounting groove;

[0035] 213, first plug-in section; 220, first clamping plate; 221, first plug-in portion;

[0036] 230, second clamping plate; 240, font size block; 241, second plug-in section;

[0037] 300, mounting seat body; 310, base; 311, first support plate; 312, second support plate;

[0038] 313, first through hole; 314, second through hole; 315, second fastener;

[0039] 316, receiving groove; 317, upper semicircular hole; 318, lower semicircular hole; 319, threaded hole;

[0040] 320, slide bar; 321, limit portion; 322, locking member; 330, slide block;

[0041] 331, upper inclined surface; 332, lower inclined surface; 333, limiting boss; 334, anti-rotation groove;

[0042] 335, sliding column; 340, spring; 360, adjusting bolt;

[0043] 370. A first fastener; 410. A metal semicircular roller. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Combination Figures 2 to 11As shown, an embodiment of the present invention provides a printing size device, which includes a printing roller assembly 200 and a mounting seat, the mounting seat is formed with a receiving groove 316 for inserting the printing roller assembly 200, and the side wall of the receiving groove 316 is provided with a first guide portion; the printing roller assembly 200 includes a font size support plate 210, a first clamping plate 220 and a second clamping plate 230, the font size support plate 210 is clamped between the first clamping plate 220 and the second clamping plate 230; the font size support plate 210 is provided with a second guide portion that slidably cooperates with the first guide portion on one side of the font size support plate 210 facing the first clamping plate 220 The guiding portion 211 and the second guiding portion 211 expose the first clamping plate 220; the working surface of the font size support plate 210 is an arc surface, and a plurality of mounting grooves 212 for mounting the font size block 240 are opened along its circumference on the arc surface, and the opposite surfaces of the font size support plate 210 and the first clamping plate 220 are respectively formed with a first plug-in section 213 and a first plug-in section 221, and a second plug-in section 241 is formed on the side of the font size block 240 facing the first clamping plate 220, and the first plug-in section 213 and the second plug-in section 241 are spliced ​​into a second plug-in section for cooperating with the first plug-in section 221.

[0050] Among them, one of the first guide part and the second guide part 211 is a guide key, and the other is a guide groove, that is, when the first guide part is a guide key, the second guide part 211 is a guide groove; when the first guide part is a guide groove, the second guide part 211 is a guide key. Further, one of the first plug-in part 221 and the second plug-in part is a convex strip, and the other is a concave groove. Similarly, when the first plug-in part 221 is a convex strip, the second plug-in part is a concave groove; when the first plug-in part 221 is a concave groove, the second plug-in part is a convex strip. Taking the second plug-in part as a concave groove as an example, at this time, the first plug-in section 213 is a multi-section concave strip, and the multi-section concave strip and the multiple installation grooves 212 are alternately arranged at intervals, that is, an installation groove 212 is formed between the adjacent two end concave strips, and at this time, the second plug-in section 241 on the font block 240 inserted in the installation groove 212 is a notch.

[0051] The following uses the first guide portion as a guide groove, the second guide portion 211 as a guide key, the first plug-in portion 221 as a convex strip, and the second plug-in portion as a groove as an example to illustrate the use method of the printing size device in the embodiment of the present invention:

[0052] When the font size block 240 needs to be replaced: S1, the mounting seat is fixed, and the printing roller assembly 200 is pulled out from the mounting seat; S2, the first clamping plate 220 and the second clamping plate 230 are disassembled; S3, the font size block 240 to be replaced is pulled out from the corresponding mounting groove 212; S4, the new font size block 240 is inserted into the corresponding mounting groove 212, and the second plug-in section 241 of the font size block 240 is directed toward the side of the font size support plate 210 provided with the first plug-in section 213, so that the first plug-in section 213 of the font size block 240 is connected to the font size support plate 212. 0 is spliced ​​into a second plug-in section 241; S5, the font size support plate 210 is placed between the first clamping plate 220 and the second clamping plate 230, and the side of the font size support plate 210 with the first plug-in section 213 is oriented toward the first clamping plate 220, and the side of the first clamping plate 220 with the first plug-in section 221 is oriented toward the font size support plate 210; S6, the font size support plate 210 is clamped between the first clamping plate 220 and the second clamping plate 230 by using fasteners such as bolts, at which time the first plug-in section 221 is just embedded in the second plug-in section. It should be noted that if the font size block 240 is installed upside down in step S4, that is, the second plug-in section 241 of the font size block 240 faces the side of the font size support plate 210 where the first plug-in section 213 is not provided, then the second plug-in section 241 cannot be spliced ​​with the first plug-in section 213 to form a second plug-in section, and is blocked by the font size block 240, and the first plug-in section 221 cannot be inserted into the first plug-in section 213, so that the first clamping plate 220 cannot be close to the font size support plate 210, and thus cannot clamp the font size block 240. S7, reinsert the assembled printing roller assembly 200 into the mounting seat, and during the insertion process, the side of the font size support plate 210 provided with the second guide portion 211 needs to face the first guide portion of the mounting seat until the second guide portion 211 gradually slides into the first guide portion, thereby completing the replacement of the font size block 240.

[0053] As can be seen from the above, the printing size device can avoid the font size block 240 from being inserted upside down by respectively arranging the first plug-in section 213 and the first plug-in portion 221 on the opposite surfaces of the font size support plate 210 and the first clamping plate 220, and at the same time arranging the second plug-in section 241 for splicing with the first plug-in section 213 on the side of the font size block 240 facing the first clamping plate 220. If the font size block 240 is inserted upside down, the second plug-in section 241 cannot be spliced ​​with the first plug-in section 213 to form the second plug-in portion, and then the first plug-in portion 221 of the first clamping plate 220 cannot be matched and installed on the font size support plate 210. In addition, the printing size device can prevent the entire printing roller assembly 200 from being inserted in reverse by setting the first guide portion on the receiving groove 316 of the mounting seat and setting the second guide portion 211 on the side of the font size support plate 210 facing the first clamping plate 220. If the printing roller assembly 200 is installed in reverse, the second guide portion 211 of the printing roller assembly 200 cannot be matched and installed on the mounting seat. It can be seen that during the entire installation process, the staff does not need to check the direction of the letters and numbers on the surface of the font size block 240. During the installation process, as long as the first clamping plate 220 and the second clamping plate 230 can clamp the font size block 240 on the font size support plate 210, it means that the font size block 240 is not installed in reverse. At the same time, as long as the printing roller assembly 200 can be installed in the mounting seat, it means that the printing roller assembly 200 is not installed in reverse, thereby not only eliminating the problem of the font size block 240 being installed in the wrong direction from the root, but also improving the efficiency of replacing the font size block 240.

[0054] Furthermore, considering that the working surface of the font size support plate 210 is an arc surface, all font size blocks 240 need to be arranged at intervals along the circumference of the font size support plate 210, and the existing font size blocks 240 are usually rectangular structures. In order to avoid the bottoms of the font size blocks 240 from interfering with each other, the spacing between the tops of the font size blocks 240 will be too large, resulting in the printed font being too long, and may even cover other text on the side ears of the strip box. Therefore, in order to avoid the above phenomenon, Fig.10 As shown, the width of the font size block 240 gradually decreases from its upper surface to its lower surface, and the shape of the mounting groove 212 is adapted to the shape of the font size block 240, that is, the width of the mounting groove 212 also gradually decreases along its depth direction. Therefore, when manufacturing the font size support plate 210, the distance between the bottoms of two adjacent mounting grooves 212 can be reduced, and then the distance between the tops of two adjacent mounting grooves 212 can be reduced. Among them, the projection shape of the mounting groove 212 and the font size block 240 on the first clamping plate 220 or the second clamping plate 230 can be, but not limited to, a trapezoid or a cone.

[0055] In the case where the font size block 240 needs to be replaced due to a change in the processing shift, since each processing shift has a corresponding fixed font size, in order to improve production efficiency, each processing shift can be equipped with a printing roller assembly 200, and each printing roller assembly 200 is installed with a font size block 240 matching its shift, so that when changing the processing shift, only the entire printing roller assembly 200 needs to be replaced without removing the mounting seat. In order to achieve rapid disassembly and assembly of the printing roller assembly 200 on the mounting seat, as shown in FIG. Figure 3 and Figure 7 As shown, the mounting seat includes a mounting seat body 300, a slide bar 320, a slider 330 and a spring 340. The receiving groove 316 is formed in the middle of the mounting seat body 300. The two sides of the top of the mounting seat body 300 are respectively provided with a first through hole 313 and a second through hole 314 which are connected to and coaxial with the receiving groove 316; the first end of the slide bar 320 forms a limited portion 321, and the second end passes through the first through hole 313, the receiving groove 316 and the second through hole 314 in sequence and is connected to the locking member 322; the spring 340 is provided with a plurality of springs 330, 340, and a plurality of springs 330. 40 is sleeved on the slide bar 320, and the spring 340 is abutted on the limit portion 321, which is used to drive the slide bar 320 to move in the direction from the second through hole 314 to the first through hole 313; the slider 330 is slidably sleeved on the slide bar 320, one end of the slider 330 is abutted on the locking member 322, and the other end is formed with a guiding inclined surface for guiding the insertion of the printing roller assembly 200; the bottom of the font support plate 210, the first clamping plate 220 and the second clamping plate 230 are provided with an avoidance hole for the slide bar 320 to pass through.

[0056] by Figure 3For example, when installing the printing roller assembly 200, the side of the font support plate 210 provided with the second guide portion 211 faces the first guide portion of the mounting seat, and the printing roller assembly 200 is gradually inserted into the receiving groove 316 from top to bottom. During the process of the printing roller assembly 200 extending into the receiving groove 316, the slider 330 is located on one side of the printing roller assembly 200, and the bottom of the printing roller assembly 200 moves down along the guide slope and squeezes the slider 330. Since the slider 330 is abutted against the locking member 322, the slider 330 pushes the slide bar 320 to move from the first through hole 313 to the second through hole 314 during the downward movement of the printing roller assembly 200. As the slide bar 320 moves, the spacing between the limiting portion 321 of the slide bar 320 and the mounting seat body 300 becomes smaller, and the spring 340 is gradually compressed. When the first guide portion and the second guide portion 211 are fully matched, the printing roller assembly 200 is inserted into place. After the insertion is completed, the compressed spring 340 will apply a thrust, i.e., a restoring force, to the slide bar 320, and the thrust is directed from the second through hole 314 to the first through hole 313, thereby driving the slider 330 to press against the print roller assembly 200. When removing the print roller assembly 200, the limiting portion 321 of the slide bar 320 is pressed, so that the slide bar 320 moves in the direction from the first through hole 313 to the second through hole 314 under the action of an external force, and the length of the slide bar 320 protruding out of the mounting seat body 300 through the second through hole 314 increases accordingly, and the slider 330 is no longer constrained by the locking member 322, and the print roller assembly 200 can be easily pulled out from the mounting seat body 300.

[0057] like Figure 3 , Figure 7 and Figure 8 As shown, the mounting seat body 300 includes a first support plate 311, a second support plate 312 and a base 310. The first support plate 311 and the second support plate 312 are fixed to the base 310 by a first fastener 370. An upper semicircular hole 317 is formed on the side of the first support plate 311 and the second support plate 312 facing the base 310; a lower semicircular hole 318 is formed on the side of the base 310 facing the mounting seat body 300, and the upper semicircular hole 317 and the lower semicircular hole 318 are jointly surrounded to form an axial hole; the first support plate 311 is connected to the second support plate 312 by a second fastener 315, and a recessed area is formed on the side of the first support plate 311 facing the second support plate 312 to jointly surround the second support plate 312 to form a receiving groove 316; the first through hole 313 and the second through hole 314 are respectively formed on the top of the first support plate 311 and the second support plate 312. The first support plate 311 and the second support plate 312 may be arched structures, that is, their projection shape on the vertical plane is similar to “Ω”. When the side wall of the receiving groove 316 is provided with a first guide portion, the first guide portion is formed on the side of the first support plate 311 facing the second support plate 312.

[0058] Furthermore, if Figure 8 and Fig.11 As shown, the mounting seat body 300 also includes an adjusting bolt 360, and a threaded hole 319 for installing the adjusting bolt 360 is longitudinally opened through the base 310, and the threaded hole 319 is connected to the accommodating groove 316. The top of the adjusting bolt 360 protrudes from the threaded hole 319 and is used to abut against the bottom surface of the printing roller assembly 200.

[0059] like Fig.11 As shown, the printing device also includes an auxiliary roller assembly, which is arranged opposite to the printing roller assembly 200. When assembling the mounting seat: first, the first support plate 311, the second support plate 312 and the base 310 are respectively buckled on the designated rotating shaft of the packaging machine, so that the rotating shaft is located in the shaft hole formed by the upper semicircular hole 317 and the lower semicircular hole 318; then the base 310 and the mounting seat body 300 are fixed together by using a first fastener 370 such as a bolt. When it is necessary to adjust the depth of the printed font size, for example, to increase the font size depth, that is, to reduce the gap between the font size block 240 and the auxiliary roller assembly, it is only necessary to tighten the adjusting bolt 360 to increase the length of the bolt extending into the receiving groove 316, thereby gradually pushing the printing roller assembly 200 out of the mounting groove 212. On the contrary, when it is necessary to reduce the font depth, that is, to increase the gap between the font block 240 and the auxiliary roller assembly, it is only necessary to loosen the adjusting bolt 360 to reduce the length of the adjusting bolt extending into the receiving groove 316, thereby allowing the printing roller assembly 200 to be further inserted into the receiving groove 316.

[0060] In addition, considering that the working surface of the existing corresponding roller is made of rubber material, the working surface of the corresponding roller is very easy to be worn, which leads to inconsistent depth of the printed font size. Therefore, in order to avoid the above situation, the auxiliary roller assembly in this embodiment is spliced ​​by two metal semicircular rollers 410, and the two metal semicircular rollers 410 are fixedly connected by a third fastener such as a bolt. Among them, the metal semicircular roller 410 can be made of alloy tool steel such as Cr12. During manufacturing, the alloy tool steel is first subjected to quenching and tempering treatment and then rough machining to reduce its deformation; after the rough machining is completed, it is quenched to make its hardness reach 60~62HRC to enhance its durability; after the quenching is completed, it is finely machined to further reduce the deformation, thereby ensuring the service life and accuracy of the metal semicircular roller 410.

[0061] It should be noted that, since the print roller assembly 200 and the auxiliary roller assembly rotate synchronously, there is only one area on the working surface of the auxiliary roller assembly that always cooperates with the print roller assembly 200. If there is slight wear in this area, loosen the third fastener, rotate the auxiliary roller assembly, and adjust its circumferential position so that the unworn area on the working surface of the auxiliary roller assembly cooperates with the print roller assembly 200, thereby avoiding changes in the gap between the font size block 240 and the auxiliary roller assembly, thereby ensuring that the printed font size is consistent in depth.

[0062] like Fig. 9 As shown, the slider 330 includes a sliding column 335, which axially penetrates the sliding column 335 and is provided with a mounting hole for inserting the sliding rod 320. The end face of the sliding column 335 facing the first through hole 313 is formed with a guiding inclined surface, and the guiding inclined surface includes an upper inclined surface 331 and a lower inclined surface 332. The upper inclined surface 331 extends outward from top to bottom, and the lower inclined surface 332 extends outward from bottom to top. The side wall of the end of the sliding column 335 facing away from the first through hole 313 is formed with a limiting boss 333, and the limiting boss 333 is arranged between the locking member 322 and the mounting seat body 300, and is used to interfere with the locking member 322 and the mounting seat body 300.

[0063] The advantages of such a configuration are as follows: on the one hand, compared with the case where the end face of the sliding column 335 is not provided with the lower inclined surface 332, by providing the lower inclined surface 332 on the end face of the sliding column 335, when the sliding column 335 is pressed against the printing roller assembly 200, the sliding column 335 uses the intersection of its upper inclined surface 331 and the lower inclined surface 332 to press against the printing roller assembly 200, thereby reducing the length of the sliding column 335 extending into the receiving groove 316, that is, reducing the gap between the printing roller assembly 200 and the upper inclined surface 331. On the other hand, by providing the limiting boss 333, it is prevented that after the printing roller assembly 200 is pulled out of the mounting seat and the sliding rod 320 loses the external force pressing, the slider 330 and the locking member 322 slide out of the second through hole 314 and enter the receiving groove 316 due to the excessive thrust applied by the spring 340 to the sliding rod 320. Specifically, when the printing roller assembly 200 is pulled out from the mounting seat body 300 and the pressure on the slide bar 320 is released, the compressed spring 340 will apply a thrust to the slide bar 320, and the slide bar 320 will move from the second through hole 314 to the first through hole 313 under the driving of the thrust. During the movement of the slide bar 320, the locking member 322 fixed on the slide bar 320 will push the slider 330 to move with it. Due to the existence of the limiting boss 333, after the sliding column 335 moves a certain distance, the limiting boss 333 will abut on the mounting seat body 300, and at the same time, the locking member 322 will abut on the limiting boss 333, thereby preventing the slider 330 and the locking member 322 from sliding out of the second through hole 314.

[0064] It should be noted that the slide bar 320 and the locking member 322 can be connected by threads or by clamping. When the slide bar 320 and the locking member 322 are connected by threads, the side wall of the slide bar 320 at one end away from the limiting portion 321 is provided with an external thread, and the locking member 322 is provided with an internal thread that matches the external thread. Of course, the slide bar 320 can directly adopt a bolt, in which case the locking member 322 is a nut and the limiting portion 321 is the head of the bolt.

[0065] In addition, the bottom surface of the sliding column 335 is formed with an anti-rotation groove 334 parallel to the axial direction of the sliding rod 320, and the inner wall of the second through hole 314 is provided with an insertion hole that penetrates the mounting seat body 300, and an anti-rotation member is fixed in the insertion hole, and the end of the anti-rotation member protrudes from the insertion hole and slides with the anti-rotation groove 334. The advantage of such a setting is that, on the one hand, it can prevent the slider 330 from rotating during the sliding process and affecting the guiding effect of the guide inclined surface on the printing roller assembly 200. Specifically, since the end of the anti-rotation member extends into the anti-rotation groove 334, when the slider 330 has a tendency to rotate, it is blocked by the anti-rotation member, and the anti-rotation groove 334 cannot pass over the anti-rotation member, thereby preventing the slider 330 from rotating. On the other hand, through the sliding cooperation between the anti-rotation member and the anti-rotation groove 334, the movement of the slider 330 can be guided. Among them, the anti-rotation member can be but not limited to a screw. When the anti-rotation member is a screw, the end of the screw can be slidably embedded in the anti-rotation groove 334, and the insertion hole is a threaded hole that cooperates with the screw.

[0066] Furthermore, if Figure 7 As shown, the first through hole 313 is a stepped hole, the large end of the stepped hole faces the limiting portion 321, and the two ends of the spring 340 are respectively set against the step surface of the limiting portion 321 and the stepped hole. It should be noted that the first through hole 313 can be a straight hole in addition to the stepped hole. Taking the spring 340 as an example, when the first through hole 313 is a straight hole, the inner diameter of the first through hole 313 is smaller than the outer diameter of the spring, that is, at this time, the two ends of the spring are respectively set between the mounting seat body 300 and the limiting portion 321. Of course, compared with the case where the first through hole 313 is a straight hole, under the premise of ensuring that the length and compression degree of the spring are the same, setting the first through hole 313 as a stepped hole can make a part of the spring extend into the large end of the stepped hole, thereby reducing the length of the slide bar 320, making the entire mounting seat body 300 more compact.

[0067] The following uses the font size printing device in the embodiment of the present invention and the existing printing roller respectively applied to a packaging machine of model FOCKE350.3# as an example to compare the time for changing font size:

[0068] As shown in Table 1, the conventional printing roller takes an average of 227.5 seconds, while as shown in Table 2, the printing number device in the embodiment of the present invention takes an average of 7.5 seconds.

[0069] Table 1 Record of replacement time of steel stamp font size when FOCKE350.3# packaging machine uses existing printing roller

[0070] Unit: Seconds

[0071]

[0072] Table 2 The time record of changing the font size when the FOCKE350.3# packaging machine adopts the font size printing device in the embodiment of the present invention

[0073] Unit: Seconds

[0074]

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the invention rather than to limit it. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the invention.

Claims

1. A printing size device, characterized in that: The invention comprises a printing roller assembly (200) and a mounting seat, wherein the mounting seat is formed with a receiving groove (316) for inserting the printing roller assembly (200), and the side wall of the receiving groove (316) is provided with a first guide portion; the printing roller assembly (200) comprises a font size support plate (210), a first clamping plate (220) and a second clamping plate (230), wherein the font size support plate (210) is clamped between the first clamping plate (220) and the second clamping plate (230); the font size support plate (210) is provided with a second guide portion (211) which is slidably matched with the first guide portion on the side facing the first clamping plate (220), and the second guide portion ( 211) exposes the first clamping plate (220); the working surface of the font size support plate (210) is an arc surface, and a plurality of mounting grooves (212) for mounting the font size block (240) are provided on the arc surface along its circumference, and the opposite surfaces of the font size support plate (210) and the first clamping plate (220) are respectively formed with a first plug-in section (213) and a first plug-in portion (221), and the font size block (240) is formed with a second plug-in section (241) on one side facing the first clamping plate (220), and the first plug-in section (213) and the second plug-in section (241) are spliced ​​to form a second plug-in portion for cooperating with the first plug-in portion (221); Wherein, one of the first guide portion and the second guide portion (211) is a guide key, and the other is a guide groove; one of the first plug-in portion (221) and the second plug-in portion is a convex strip, and the other is a concave groove; The width of the font size block (240) gradually decreases from its upper surface to its lower surface, and the shape of the mounting groove (212) is adapted to the shape of the font size block (240); The mounting seat comprises a mounting seat body (300), a slide bar (320), a slider (330) and a spring (340); the receiving groove (316) is formed in the middle of the mounting seat body (300); the two sides of the top of the mounting seat body (300) are respectively provided with a first through hole (313) and a second through hole (314) which are connected to the receiving groove (316) and are coaxial; the first end of the slide bar (320) forms a limiting portion (321), and the second end passes through the first through hole (313), the receiving groove (316) and the second through hole (314) in sequence and is connected to the locking member (322); the spring (3 The first and second clamping plates (230) are provided at the bottom of the font size support plate (210), the first clamping plate (220) and the second clamping plate (230) respectively. The bottom of the font size support plate (210), the first clamping plate (220) and the second clamping plate (230) are provided with avoidance holes for the passage of the slider (320).

2. The printing size device according to claim 1, characterized in that: The mounting seat body (300) comprises a first support plate (311), a second support plate (312) and a base (310); the first support plate (311) and the second support plate (312) are fixed to the base (310) by means of a first fastener (370); an upper semicircular hole (317) is formed on one side of the first support plate (311) and the second support plate (312) facing the base (310); and a lower semicircular hole (318) is formed on one side of the base (310) facing the first support plate (311) and the second support plate (312). The upper semicircular hole (317) and the lower semicircular hole (318) are jointly arranged to form an axial hole; the first support plate (311) is connected to the second support plate (312) through a second fastener (315); a recessed area is formed on one side of the first support plate (311) facing the second support plate (312) to jointly form the receiving groove (316) with the second support plate (312); the first through hole (313) and the second through hole (314) are respectively formed on the top of the first support plate (311) and the second support plate (312).

3. The printing size device according to claim 2, characterized in that: The mounting seat body (300) further comprises an adjusting bolt (360), and a threaded hole (319) for mounting the adjusting bolt (360) is longitudinally penetrated through the base (310), the threaded hole (319) is communicated with the receiving groove (316), and the top of the adjusting bolt (360) protrudes out of the threaded hole (319) and is used to abut against the bottom surface of the printing roller assembly (200).

4. The printing size device according to claim 1, characterized in that: The slider (330) includes a sliding column (335), and the sliding column (335) is axially penetrated with a through hole for inserting the sliding rod (320). The end surface of the sliding column (335) facing the first through hole (313) is formed with the guiding inclined surface, and the guiding inclined surface includes an upper inclined surface (331) and a lower inclined surface (332). The upper inclined surface (331) expands outward from top to bottom, and the lower inclined surface (332) expands outward from bottom to top; the side wall of the end of the sliding column (335) facing away from the first through hole (313) is formed with a limiting boss (333), and the limiting boss (333) is arranged between the locking member (322) and the mounting seat body (300) for contacting and cooperating with the locking member (322) and the mounting seat body (300).

5. The printing size device according to claim 4, characterized in that: The bottom surface of the sliding column (335) is formed with an anti-rotation groove (334) parallel to the axial direction of the sliding rod (320), and the inner wall of the second through hole (314) is provided with a socket penetrating the mounting seat body (300), an anti-rotation part is fixed in the socket, and the end of the anti-rotation part protrudes out of the socket and slidably cooperates with the anti-rotation groove (334).

6. The printing size device according to claim 1, characterized in that: The first through hole (313) is a stepped hole, the large end of the stepped hole faces the limiting portion (321), and the two ends of the spring (340) are respectively disposed against the limiting portion (321) and the step surface of the stepped hole.

7. The printing size device according to claim 1, characterized in that: It also comprises an auxiliary roller assembly arranged opposite to the printing roller assembly (200), wherein the auxiliary roller assembly is formed by splicing two metal semicircular rollers (410), and the two metal semicircular rollers (410) are fixedly connected by a third fastener.

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