A pressing device and a printing apparatus

Abstract

The utility model discloses an embodiment relates to printing technical field, especially disclose a kind of pressing device and printing equipment, and the pressing device includes support and pressing component;Support includes two along the beam of first direction interval arrangement, and beam extends along second direction;Pressing mechanism, including pressing plate and height adjusting mechanism, and height adjusting mechanism includes first screw joint, first sliding base and second sliding base, and first sliding base is provided with sliding slot, and second sliding base is provided with sliding block, and sliding block is slidably connected in sliding slot, and pressing plate is set to first sliding base, and second sliding base is set to beam, and first sliding base is further provided with first screw hole, and first screw joint is screwed in first screw hole, when first screw joint abuts on sliding block, first sliding base and second sliding base are locked, when first screw joint is separated from sliding block, unblock, and first sliding base can slide relative to second sliding base along third direction, and first direction, second direction and third direction are perpendicular two by two. By the above-mentioned mode, the utility model embodiment can make that printing is carried out smoothly.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a holding device and a printing equipment. Background Technology

[0002] In current printing equipment, during the process of conveying the printing media, the printing carriage prints on the printing media from above.

[0003] In the process of realizing this utility model, the inventors discovered that the edges of the printing medium are prone to curling up, which makes the printing carriage above the printing medium easily touch and curl up, thus causing the printing to fail. Utility Model Content

[0004] This utility model provides a holding device and a printing device that enable printing to proceed smoothly.

[0005] To solve the above-mentioned technical problems, the present invention provides a pressing device, which includes a support and a pressing component. The support includes two crossbeams spaced apart along a first direction, and the crossbeams extend along a second direction. The pressing mechanism includes a pressure plate and a height adjustment mechanism. The height adjustment mechanism includes a first screw connector, a first slide block, and a second slide block. The first slide block is provided with a slide groove, and the second slide block is provided with a slider. The slider is slidably connected to the slide groove. The pressure plate is provided on the first slide block, and the second slide block is provided on the crossbeams. The first slide block is also provided with a first screw hole, through which the first screw connector passes and is screwed into the first screw hole. When the first screw connector abuts against the slider, the first slide block and the second slide block are locked together. When the first screw connector disengages from the slider, the first slide block and the second slide block are unlocked. The first slide block can slide relative to the second slide block along a third direction to adjust the height of the pressure plate along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0006] Optionally, the crossbeam includes a beam body and a guide rail, the guide rail being disposed on the beam body and extending along a second direction; The height adjustment mechanism also includes a sliding component and a locking component. The height adjustment mechanism is disposed on the sliding component, which has a guide groove. The guide rail is slidably connected to the guide groove. The locking component is disposed on the sliding component. When the locking assembly locks the sliding assembly and the beam, the sliding assembly is fixed to the guide rail; When the locking assembly unlocks the sliding assembly and the beam, the sliding assembly can slide along the guide rail to adjust the position of the pressure plate in the second direction.

[0007] Optionally, the sliding component is provided with a second screw hole, and the locking component includes a second screw connector that passes through and is screwed into the second screw hole; When the second screwed component abuts against the beam, the sliding assembly and the beam are locked together. When the second screwed connector disengages from the beam, the sliding assembly and the beam are unlocked, allowing the sliding assembly to slide along the guide rail.

[0008] Optionally, the pressure plate includes two bases and a thickened portion, which are alternately arranged along the second direction, and the thickness of the thickened portion is 1mm-2mm greater than the thickness of the base.

[0009] Optionally, the thickness of the thickened part is 2mm-3mm.

[0010] Optionally, the pressure plate has a first guide slope at one end along the first direction, which is used to guide the printing medium into the lower part of the pressure plate.

[0011] Optionally, the height adjustment mechanism also includes a mounting base, with a pressure plate disposed below the mounting base. One end of the mounting base along the first direction is provided with a second guide slope, which is located on the side of the mounting base near the pressure plate. The second guide slope is used to guide the printing medium to move toward the pressure plate.

[0012] Optionally, a third screw hole is provided on the side of the mounting base facing the pressure plate; The pressure plate is provided with a receiving groove, and the bottom of the receiving groove is provided with a connecting hole; The height adjustment mechanism also includes a third screw connector, which passes through the connecting hole and is screwed into the third screw hole, with a portion of the third screw connector housed in the receiving groove.

[0013] Optionally, the number of height adjustment mechanisms is two: one height adjustment mechanism is set on one crossbeam, and the two height adjustment mechanisms are set at both ends of the pressure plate.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is to provide a printing device, including the holding device as described in any of the above embodiments.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment provides a holding device, which includes a bracket and a holding component. The bracket includes two crossbeams spaced apart along a first direction, extending along a second direction. The holding mechanism includes a pressure plate and a height adjustment mechanism. The height adjustment mechanism includes a first screw connector, a first slide block, and a second slide block. The first slide block has a slide groove, and the second slide block has a slider slidably connected to the slide groove. The pressure plate is located on the first slide block, and the second slide block is located on the crossbeams. The first slide block also has a first screw hole, through which the first screw connector passes and is screwed into the first screw hole. When the first screw connector abuts against the slider, the first and second slide blocks are locked together. When the first screw connector disengages from the slider, the first and second slide blocks are unlocked. The first slide block can slide relative to the second slide block along a third direction to adjust the height of the pressure plate along the third direction. The first, second, and third directions are perpendicular to each other. The pressure plate presses against the edge of the printing medium below, thereby preventing the edge of the printing medium from lifting and touching the printing carriage, thus ensuring printing quality. The height of the pressure plate can be adjusted by loosening the first screw, thus accommodating printing media of different thicknesses; after adjustment, tightening the first screw will lock it in place, making the operation simple and convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of the pressing device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the bracket according to an embodiment of the present utility model; Figure 3 This is an exploded view of the pressing mechanism according to an embodiment of the present utility model; Figure 4 This is an exploded view of the first and second slides according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the pressure plate according to an embodiment of the present utility model; Figure 6 This is an exploded view of the sliding component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the locking component according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of a mounting base with a strip-shaped hole according to an embodiment of the present utility model; Figure 9This is a schematic diagram of a mounting base with a third screw hole according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Holding device; 10. Bracket; 100. Crossbeam; 110. Beam body; 111. Fourth screw hole; 112. First hollow structure; 113. Fifth screw hole; 120. Guide rail; 121. First through hole; 130. Limiting component; 140. Top plate; 141. Second through hole; 142. Second hollow structure; 20. Holding mechanism; 200, Pressure plate; 210, Base; 220, Thickened part; 221, Receiving groove; 222, Connecting hole; 230, First guide slope; 300. Height adjustment mechanism; 301. First screw connector; 302. Third screw connector; 303. Ninth screw connector; 310. First slide block; 311. Slide groove; 312. Grip part; 313. Ninth screw hole; 320. Second slide block; 321. Slider; 322. Seventh screw hole; 330, Sliding assembly; 331, Sliding element; 3311, Guide groove; 3312, Sixth screw hole; 332, Fixing plate; 3321, Second screw hole; 3322, Third through hole; 3323, Fourth through hole; 340. Locking assembly; 341. Second screwed connector; 3411. Rotating part; 3412. Boss part; 3413. Screwed part; 342. Locking nut; 343. Intermediate nut; 350. Mounting base; 351. Second guide slope; 352. Third screw hole; 353. Strip hole; 354. Fifth through hole. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] Please see Figure 1 The holding device 1 includes a bracket 10 and a holding mechanism 20. The holding mechanism 20 is disposed on the bracket 10 and is used to hold the edge of the printing medium (not shown) to prevent the edge of the printing medium from lifting up, thereby avoiding the printing carriage from touching the lifting edge of the printing medium and ensuring smooth printing.

[0022] For ease of understanding, the direction is defined as follows: The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other. When the printing medium is placed on the holding device 1, the first direction X is the forward direction of the printing medium, the second direction Y is the width direction of the printing medium, and the third direction Z is the thickness direction of the printing medium. Among them, along the third direction Z, the side of the holding device 1 used to hold the printing medium is the bottom of the holding device 1.

[0023] For the aforementioned bracket 10, please refer to... Figure 2 The bracket 10 includes two crossbeams 100 extending along two second directions Y, with the two crossbeams 100 spaced apart relative to each other along a first direction X. Each crossbeam 100 includes a beam body 110 and a guide rail 120, with the guide rail 120 protruding from the beam body 110. Both the beam body 110 and the guide rail 120 extend along the second direction Y. As an example, the guide rail 120 has multiple first through holes 121 along the second direction Y, and the beam body 110 has multiple fourth screw holes 111 along the second direction Y. The crossbeam 100 also includes multiple fourth screw connectors (not shown), each fourth screw connector passing through a first through hole 121 and screwed into a fourth screw hole 111. This allows the guide rail 120 to be detachably connected to the beam body 110. When the working time is long and the guide rail 120 wears down, leading to a decrease in accuracy, a new guide rail 120 can be replaced. As another embodiment, the guide rail 120 and the beam body 110 are integrally formed.

[0024] In some embodiments, the beam 110 is provided with a plurality of first hollow structures 112 along the second direction Y. The first hollow structures 112 penetrate the beam 110 along the first direction X. The shape of the first hollow structure 112 can be circular, rectangular, racetrack-shaped, etc. The arrangement of the first hollow structure 112 facilitates the observation of the working state of the holding mechanism 20, can reduce the mass of the beam 110, and reduce the processing cost of the beam 110.

[0025] In some embodiments, the crossbeam 100 further includes a top plate 140 and a fifth screw connector (not shown). The top plate 140 is provided with a plurality of second through holes 141 along the second direction Y, and the beam body 110 is provided with a plurality of fifth screw holes 113 along the second direction Y. A fifth screw connector passes through a second through hole 141 and is screwed into a fifth screw hole 113.

[0026] Furthermore, the top plate 140 is provided with a plurality of second hollow structures 142 along the second direction Y. The second hollow structures 142 penetrate the top plate 140 along the third direction Z. The shape of the second hollow structure 142 can be circular, rectangular, racetrack-shaped, etc. The arrangement of the second hollow structure 142 facilitates the observation of the working status of the pressing mechanism 20, and can also reduce the weight of the top plate 140 and reduce the processing cost of the top plate 140.

[0027] For the aforementioned holding mechanism 20, please refer to... Figure 1 , Figure 3 and Figure 4 The holding mechanism 20 includes a pressure plate 200 and a height adjustment mechanism 300, with the pressure plate 200 located below the height adjustment mechanism 300. The height adjustment mechanism 300 includes a first screw connector 301, a first slide block 310, and a second slide block 320. The first slide block 310 has a groove 311 extending in a third direction (Z), and the second slide block 320 has a slider 321 slidably connected to the groove 311. The pressure plate 200 is disposed on the first slide block 310, and the second slide block 320 is disposed on the crossbeam 100. The first slide block 310 also has a first screw hole, through which the first screw connector 301 passes and is screwed into the first screw hole. When the first screw connector 301 abuts against the slider 321, the first slide block 310 and the second slide block 320 are locked together, and the first screw connector 301 restricts the relative movement between the first slide block 310 and the second slide block 320. When the first screw connector 301 disengages from the slider 321, the first slide 310 and the second slide 320 are unlocked, allowing the first slide 310 to slide relative to the second slide 320 along the third direction Z. Thus, by adjusting the position of the first slide 310 relative to the second slide 320 along the third direction Z, the height of the pressure plate 200 can be adjusted to accommodate printing media of different thicknesses. Furthermore, this method also allows for adjustment of the tightness of the pressure plate 200 in holding the printing media, ensuring that the pressure plate 200 can hold the edges of the printing media while reducing the risk of the printing media getting stuck due to excessive pressure. Optionally, the first slide 310 or the second slide 320 may be provided with a gripping part 312 to facilitate the movement of the first slide 310 relative to the second slide 320.

[0028] For example, the pressure plate 200 is a long strip-shaped plate structure, and the pressure plate 200 extends along the first direction X. There are two height adjustment mechanisms 300. The second slide 320 of one height adjustment mechanism 300 is disposed on a crossbeam 100, and both ends of the pressure plate 200 are respectively connected to the first slides 310 of the two height adjustment mechanisms 300. Thus, by adjusting the height of both ends of the pressure plate 200 along the third direction Z, the pressure plate 200 can be straightened when tilted.

[0029] For the aforementioned pressure plate 200, please refer to... Figure 5 The pressure plate 200 includes two bases 210 and a thickened portion 220, both extending along a first direction. The bases 210 and the thickened portion 220 are alternately arranged along a second direction. The thickness of the thickened portion 220 is 1mm-2mm greater than the thickness of the bases 210. The thickened portion 220 increases the rigidity of the pressure plate 200, making it less prone to deformation and thus stably holding the edge of the printing medium, reducing the risk of it being arched by the printing medium. The bases 210 reduce the weight of the pressure plate 200, lowering its production cost. Furthermore, the arrangement of the bases 210 and the thickened portion 220 also ensures the strength of the pressure plate 200, thereby reducing the risk of damage. Optionally, the thickness of the thickened portion 220 is 2mm-3mm. As an example, along the first direction X, both the base 210 and the thickened portion 220 extend from one end of the pressure plate 200 to the other end, thus making the processing of the pressure plate 200 simple and convenient.

[0030] Furthermore, along the thickness direction of the pressure plate 200, the top surface of the pressure plate 200 at the base 210 and the top surface of the pressure plate 200 at the thickened portion 220 are flush, while the bottom surface of the pressure plate 200 at the thickened portion 220 protrudes beyond the bottom surface of the pressure plate 200 at the base 210. Here, the bottom surface of the pressure plate 200 refers to the outer surface of the pressure plate 200 used to hold the printing medium, and the top surface of the pressure plate 200 refers to the outer surface of the pressure plate 200 on the side opposite to the bottom surface. Thus, a groove is defined between the bottom surface of the base 210 and the thickened portion 220. When the edge of the printing medium abnormally protrudes, such as if the edge of the printing medium is warped or if there are foreign objects, the groove can accommodate the abnormal protrusion, thereby reducing the risk of the printing medium getting stuck.

[0031] In some embodiments, a first guide slope 230 is further provided at one end of the pressure plate 200. The first guide slope 230 extends from the bottom surface of the pressure plate 200 to the top surface of the pressure plate 200. The first guide slope 230 is inclined to the plane where the pressure plate 200 is located. The first guide slope 230 is used to guide the printing medium into the lower part of the pressure plate 200, thereby preventing the printing medium from being stuck. Optionally, the first guide slope 230 is provided at both ends of the pressure plate 200, so that the two ends of the pressure plate 200 do not need to distinguish the direction during installation, which facilitates the assembly of the pressure plate 200 and avoids assembly errors.

[0032] Please combine Figure 6 and Figure 7 The height adjustment mechanism 300 also includes a sliding component 330 and a locking component 340. The height adjustment mechanism 300 is disposed on the sliding component 330, which has a guide groove 3311 along the second direction Y. The guide rail 120 is slidably connected to the guide groove 3311. The locking component 340 is disposed on the sliding component 330. When the locking component 340 locks the sliding component 330 and the beam 110, the sliding component 330 is fixed to the guide rail 120. When the locking component 340 unlocks the sliding component 330 and the beam 110, the sliding component 330 can slide along the guide rail 120 to adjust the position of the pressure plate 200 along the second direction Y, thereby adapting to printing media of different positions, shapes, or sizes.

[0033] Furthermore, the guide rail 120 is located inside the beam 110 it is on. The inside of the beam 110 refers to the side of the beam 110 facing another beam 110 along the first direction X, so that the second slides 320 at both ends of the pressure plate 200 are respectively located inside the two beams 110. The sliding assembly 330 is provided with a second screw hole 3321, and the locking assembly 340 includes a second screw connector 341, which passes through and is screwed into the second screw hole 3321. The second screw connector 341 can abut against the inside of the beam 110 or separate from the beam 110. When the second screw connector 341 abuts against the beam 110, the second screw connectors 341 at both ends of the holding mechanism 20 are pressed inward by the beam 110, and locking is achieved by the static friction between the second screw connector 341 and the beam 110. The above locking or unlocking operation is convenient and can achieve stepless adjustment.

[0034] The locking assembly 340 also includes a locking nut 342, which is screwed onto the second threaded member 341 and is located between the second threaded hole 3321 and the beam 110. When the locking assembly 340 locks the sliding assembly 330 and the beam 110, the locking nut 342 abuts against the beam 110. Since the length of the second threaded member 341 is fixed, the locking nut 342 allows for further fine-tuning of the compression between the locking assembly 340 and the beam 110 when the second threaded member 341 is tightened to its limit position. On the other hand, when the second threaded member 341 and the locking nut 342 abut against the beam 110 simultaneously, the locking nut 342 increases the contact area between the locking assembly 340 and the beam 110, thereby increasing friction and improving the stability of the connection between the locking assembly 340 and the beam 110. Furthermore, the locking assembly 340 also includes one or more intermediate nuts 343, each intermediate nut 343 being disposed between the second screw hole 3321 and the locking nut 342. When the locking assembly 340 locks the sliding assembly 330 and the beam 110, the intermediate nuts 343 away from the second screw hole 3321 abut against the locking nut 342, and each intermediate nut 343 abuts against each other, thereby preventing the locking nut 342 from loosening and improving the stability of the connection between the locking assembly 340 and the beam 110.

[0035] Optionally, the second threaded connector 341 is provided with a rotating part 3411, a boss part 3412, and a threaded part 3413 in sequence. The threaded part 3413 is used to thread the second threaded hole 3321. Along the radial direction of the threaded part 3413, the boss part 3412 protrudes from the side wall of the threaded part 3413. When the locking assembly 340 locks the sliding assembly 330 and the beam 110, the boss part 3412 abuts against the side of the sliding assembly 330 away from the beam 110, thereby allowing the boss part 3412 to share the load borne by the threaded part 3413. This ensures a firm connection between the locking assembly 340 and the sliding assembly 330 and improves the service life of the locking assembly 340 and the sliding assembly 330. The rotating part 3411 has an anti-slip structure on its side, which facilitates the application of external force to the second threaded connector 341.

[0036] The sliding assembly 330 mentioned above includes a slider 331 and a fixed plate 332. The slider 331 is disposed on the side of the fixed plate 332 facing the beam 110. The guide groove 3311 is disposed on the slider 331. The second screw hole 3321 is disposed on the fixed plate 332. The second slide block 320 is disposed on the side of the fixed plate 332 away from the beam 110. The slider 331 is located above the second slide block 320. The height adjustment mechanism 300 also includes multiple sixth screw connectors (not shown) and multiple seventh screw connectors (not shown). The fixed plate 332 is provided with multiple third through holes 3322 and fourth through holes 3323. The sliding member 331 is provided with multiple sixth screw holes 3312. The second slide block 320 is provided with a seventh screw hole 322. A sixth screw connector passes through a third through hole 3322 and is screwed into a sixth screw hole 3312. A seventh screw connector passes through a fourth through hole 3323 and is screwed into a seventh screw hole 322. It can be understood that the connection method between the fixed plate 332 and the sliding member 331 and the second slide block 320 is not limited to this. It can also be a detachable connection method such as snap-fit ​​or welding, or it can be integrally formed.

[0037] In some embodiments, the crossbeam 100 further includes two limiting members 130, which are respectively disposed at both ends of the guide rail 120. The limiting members 130 are detachably disposed on the beam body 110 and are used to limit the stroke of the sliding member 331.

[0038] Please combine Figure 8 and Figure 9 The height adjustment mechanism 300 also includes a mounting base 350, which is disposed on the top surface of the pressure plate 200. One end of the mounting base 350 along a first direction is provided with a second guide slope 351, located on the side of the mounting base 350 closest to the pressure plate 200. The second guide slope 351 guides the printing medium towards the pressure plate 200. It is understood that both ends of the mounting base 350 of the pressure plate 200 may be provided with the second guide slope 351 for ease of installation. Alternatively, one end of the mounting base 350 of the pressure plate 200 may be provided with the second guide slope 351, with the mounting base 350 having the second guide slope 351 located at the end of the mounting base 350 that has the first guide slope 230.

[0039] In some embodiments, the pressure plate 200 is provided with a receiving groove 221 along its thickness direction, and a connecting hole 222 is provided at the bottom of the receiving groove 221. The height adjustment mechanism 300 also includes a third screw connector 302. Along the third direction Z, the end of the third screw connector 302 away from the mounting base 350 is received in the receiving groove 221, and the third screw connector 302 is screwed onto the mounting base 350 after passing through the connecting hole 222. The receiving groove 221 is provided so that the third screw connector 302 does not protrude from the opening of the receiving groove 221, thereby reducing the risk of the third screw connector 302 getting stuck on the printing medium. Further, along the third direction Z, the end of the third screw connector 302 away from the mounting base 350 is flush with the opening of the receiving groove 221, thereby reducing the risk of the printing medium getting stuck in the receiving groove 221. Optionally, the receiving groove 221 is provided in the thickened portion 220, thereby ensuring the strength of the pressure plate 200.

[0040] Optionally, the mounting base 350 is provided with a third screw hole 352 on the side facing the pressure plate 200, and the third screw connector 302 is a bolt (not shown in the figure). The third screw connector 302 passes through the connecting hole 222 and is screwed into the third screw hole 352.

[0041] Optionally, the height adjustment mechanism 300 also includes an eighth screw connector (not shown). The mounting base 350 has a slotted hole 353 along the third direction Z, extending along the first direction X. The third screw connector 302 passes through the connecting hole 222 and the slotted hole 353 sequentially before being screwed onto the eighth screw connector. The third screw connector 302 can be a bolt, and the eighth screw connector can be a nut. Alternatively, the third screw connector 302 has an eighth screw hole along the third direction, and the eighth screw connector is a bolt screwed into the eighth screw hole. The slotted hole 353 allows the mounting base 350 to have multiple mounting positions relative to the pressure plate 200 along the first direction X. In the event of improper operation, processing errors, assembly errors, or the printing media arching the pressure plate 200, the slotted hole 353 allows for slight movement of the pressure plate 200, thereby reducing the occurrence of damage.

[0042] It should be noted that, of the mounting seats 350 at both ends of the pressure plate 200, one is provided with a third screw hole 352, and the other is provided with a strip hole 353. Alternatively, both mounting seats 350 at both ends of the pressure plate 200 are provided with a third screw hole 352. Or, both mounting seats 350 at both ends of the pressure plate 200 are provided with a strip hole 353.

[0043] In some embodiments, the mounting base 350 is detachably connected to the first slide 310. The height adjustment mechanism 300 also includes a ninth screw connector 303. The mounting base 350 is provided with a fifth through hole 354, and the first slide 310 is provided with a ninth screw hole 313. The ninth screw connector 303 passes through the fifth through hole 354 and is screwed into the ninth screw hole 313.

[0044] In some embodiments, the number of holding mechanisms 20 is multiple, and the multiple holding mechanisms 20 are spaced apart along the second direction. A printing channel for the printing medium to pass through is defined between two adjacent holding mechanisms 20, and two adjacent printing media respectively hold the two sides of the printing media along the width direction. This allows the holding device 1 to hold multiple printing media simultaneously, thereby improving printing efficiency.

[0045] In this embodiment of the invention, the pressing device 1 includes a bracket 10 and a pressing component; the bracket 10 includes two crossbeams 100 spaced apart along a first direction, and the crossbeams 100 extend along a second direction; the pressing mechanism 20 includes a pressure plate 200 and a height adjustment mechanism 300, the height adjustment mechanism 300 includes a first screw connector 301, a first slide block 310 and a second slide block 320, the first slide block 310 is provided with a slide groove 311, the second slide block 320 is provided with a slider 321, the slider 321 is slidably connected to the slide groove 311, and the pressure plate 200 is disposed on the first slide block 310. The second slide 320 is disposed on the crossbeam 100. The first slide 310 is also provided with a first screw hole. The first screw connector 301 passes through and is screwed into the first screw hole. When the first screw connector 301 abuts against the slider 321, the first slide 310 and the second slide 320 are locked together. When the first screw connector 301 disengages from the slider 321, the first slide 310 and the second slide 320 are unlocked. The first slide 310 can slide relative to the second slide 320 in a third direction to adjust the height of the pressure plate 200 in the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The pressure plate 200 presses against the edge of the printing medium below, thereby preventing the edge of the printing medium from lifting and touching the printing carriage, thus ensuring printing quality. The height of the pressure plate 200 can be adjusted by loosening the first screw connector 301 to accommodate printing media of different thicknesses. After adjustment, the first screw connector 301 can be tightened to lock it in place. The operation is simple and convenient.

[0046] This utility model provides an embodiment of a printing device, which includes the aforementioned holding device 1. The structure and function of the holding device 1 can be found in the above embodiment, and will not be described in detail here.

[0047] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A press holding device characterized by comprising: include: The support includes two crossbeams spaced apart along a first direction, the crossbeams extending along a second direction; The holding mechanism includes a pressure plate and a height adjustment mechanism. The height adjustment mechanism includes a first screw connector, a first slide block, and a second slide block. The first slide block is provided with a slide groove, and the second slide block is provided with a slider. The slider is slidably connected to the slide groove. The pressure plate is disposed on the first slide block, and the second slide block is disposed on the crossbeam. The first slide block is also provided with a first screw hole, through which the first screw connector passes and is screwed into the first screw hole. When the first screw connector abuts against the slider, the first slide block and the second slide block are locked together. When the first screw connector disengages from the slider, the first slide block and the second slide block are unlocked. The first slide block can slide relative to the second slide block in a third direction to adjust the height of the pressure plate in the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

2. The pressing device according to claim 1, characterized in that, The crossbeam includes a beam body and a guide rail, the guide rail is disposed on the beam body, and the guide rail extends along a second direction; The height adjustment mechanism further includes a sliding component and a locking component. The height adjustment mechanism is disposed on the sliding component, the sliding component is provided with a guide groove, the guide rail is slidably connected to the guide groove, and the locking component is disposed on the sliding component. When the locking component locks the sliding component and the beam, the sliding component is fixed to the guide rail; When the locking component unlocks the sliding component and the beam, the sliding component can slide along the guide rail to adjust the position of the pressure plate in the second direction.

3. The pressing device according to claim 2, characterized in that, The sliding component is provided with a second screw hole, and the locking component includes a second screw member, which passes through and is screwed into the second screw hole; When the second screwed member abuts against the beam, the sliding assembly and the beam are locked. When the second screwed member disengages from the beam, the sliding assembly and the beam are unlocked, allowing the sliding assembly to slide along the guide rail.

4. The pressing device according to claim 1, characterized in that, The pressure plate includes two base portions and a thickened portion, which are alternately arranged along the second direction. The thickness of the thickened portion is 1mm-2mm greater than the thickness of the base portion.

5. The pressing device according to claim 4, characterized in that, The thickness of the thickened part is 2mm-3mm.

6. The pressing device according to claim 1, characterized in that, The pressure plate has a first guide slope at one end along the first direction, and the first guide slope is used to guide the printing medium into the lower part of the pressure plate.

7. The pressing device according to claim 1, characterized in that, The height adjustment mechanism also includes a mounting base, the pressure plate is disposed below the mounting base, and the mounting base is provided with a second guide slope at one end along the first direction. The second guide slope is located on the side of the mounting base near the pressure plate and is used to guide the printing medium to move toward the pressure plate.

8. The pressing device according to claim 7, characterized in that, The pressure plate is provided with a receiving groove, and the pressure plate is provided with a connecting hole at the bottom of the receiving groove; The height adjustment mechanism also includes a third screw connector, which passes through the connecting hole and is screwed onto the mounting base. In the third direction, the end of the third screw connector away from the mounting base is received in the receiving groove.

9. The pressing device according to any one of claims 1-8, characterized in that, The number of height adjustment mechanisms is two, one of which is located on one of the crossbeams, and the two height adjustment mechanisms are located at both ends of the pressure plate.

10. A printing device, characterized in that, Includes the holding device as described in any one of claims 1-9.

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