阅读说明：本技术 一种机械设计制造及其自动化专业用图纸裁切装置 (Machinery manufacturing and automatic specialty are with picture paper cutting device thereof ) 是由 朱波 时培芬 于 2021-01-13 设计创作，主要内容包括：本发明公开了一种机械设计制造及其自动化专业用图纸裁切装置,其结构包括拼接顶块、拼接底块,本发明具有以下有益效果,通过设有可进行拼接的多块拼接顶块、拼接底块,没两个拼接顶块或没两个拼接底块之间均采用可调节的对接装置进行拼接,且拼接底块在进行拆卸后可取出把杆当盖板使用,使设备能够进行更多纸张尺寸的拼接使用,免于多种盖板垫板的携带,更便于携带和进行对应的组合,通过在拼接顶块和拼接底块之间设有受压缩弹簧顶压的顶压底块,使拼接底块的上下拼接杆在进入上下扣接槽后会被顶压底块推动顶压与上下扣接槽自动扣接,而因为拼接底块可拆卸进行盖板的使用和其可组合性,使设备能够更好的避免垫板和盖板不能够进行配合使用的情况。(The invention discloses a mechanical design manufacturing and automatic professional paper cutting device, the structure of which comprises a splicing top block and a splicing bottom block, the invention has the following beneficial effects that a plurality of splicing top blocks and splicing bottom blocks which can be spliced are arranged, no two splicing top blocks or no two splicing bottom blocks are spliced by adopting an adjustable butt joint device, and the splicing bottom blocks can take out a rod to be used as a cover plate after being disassembled, so that the equipment can be spliced and used with more paper sizes, the carrying of various cover plate backing plates is avoided, the carrying and the corresponding combination are more convenient, the top and bottom blocks which are pressed by a compression spring are arranged between the splicing top blocks and the splicing bottom blocks, the upper and lower splicing rods of the splicing bottom blocks can be pushed by the top and bottom blocks to be automatically buckled with the upper and lower buckling grooves after entering the upper and lower buckling grooves, and the use and the combinability of the cover plate can be realized because the splicing bottom blocks can be disassembled, the condition that the base plate and the cover plate cannot be matched for use can be better avoided.)

1. The utility model provides a machine design makes and automatic specialty uses chart paper cutting device thereof, its structure includes concatenation kicking block (1), concatenation bottom block (2), concatenation kicking block (1) bottom lock joint has concatenation bottom block (2), its characterized in that:

the splicing bottom block (2) comprises a butt joint device (a), a handle bar (b), a connecting rod (c), a bottom block main body (d), a positioning clamping groove (e), a movable shaft (f), a bottom plate butt joint groove (g), a movable outer rod (h), an outer rod sliding groove (i), a shaft lever sliding groove (j), an upper splicing rod (k), a lower splicing rod (k), a handle bar accommodating groove (l), a positioning clamping plate (m), a shaft lever positioning convex plate (n) and a handle bar positioning convex plate (o), wherein the bottom plate butt joint groove (g) is formed in the front, the rear, the left and the right middle parts of the bottom block main body (d), the butt joint device (a) is buckled with the bottom plate butt joint groove (g), the outer rod sliding groove (i) is formed in the bottom block main body (d), the top end of the outer rod sliding groove (i) penetrates through the top end of the bottom block main body (d), the shaft lever sliding groove (j) is embedded in the bottom block main body (d, the handle bar accommodating groove (l) is embedded at the top end of the bottom block main body (d), the left end of the handle bar accommodating groove (l) is communicated with the outer bar sliding groove (i), the positioning clamping plate (m) is arranged in the middle of the right end of the shaft rod sliding groove (j), the shaft rod positioning convex plate (n) is arranged at the right sides of the upper end and the lower end of the shaft rod sliding groove (j), the front end and the rear end of the movable shaft (f) are movably buckled in the shaft rod sliding groove (j), the bottoms of the front end and the rear end of the movable shaft (f) are respectively provided with a positioning clamping groove (e), the movable shaft (f) is coated with a movable outer bar (h), the movable outer bar (h) is arranged in the outer bar sliding groove (i), the right end of the movable outer bar (h) is fixedly connected with the left end of the handle bar (b) through a connecting rod (c), the handle bar positioning convex plate (o) is arranged at the right end of the handle bar accommodating groove (l), and, the upper right part of the handle rod (b) is connected with a handle rod positioning convex plate (o), the upper and lower splicing rods (k) are arranged at the top end of the bottom block main body (d), and the bottom block main body (d) is buckled with the splicing top block (1) through the upper and lower splicing rods (k);

the butt joint device (a) comprises a screw rod (a 1), a first compression spring (a 2), a butt joint assembly rod (a 3), a butt joint head (a 4), an elastic sheet (a 5), a top pressing ring bag (a 6), a vent groove (a 7), an inner bag (a 8), a top pressing plate (a 9), a telescopic inner groove (a 10), a first butt joint main rod (a 11) and a second butt joint main rod (a 12), wherein the screw rod (a 1) is arranged in the middle of the left end of the second butt joint main rod (a 12), the second butt joint main rod (a 12) is locked with the first butt joint main rod (a 11) through the screw rod (a 1), the middle of the left end of the first butt joint main rod (a 11) is fixedly connected with the middle of the butt joint head (a 4) through the butt joint assembly rod (a 3), the top pressing ring bag (a 6) is coated on the butt joint assembly rod (a 3), the telescopic inner groove (a 10) is arranged on the first butt joint main rod (a 11), and the inner groove (10 a 9) is arranged on, the left end of the top pressure plate (a 9) is connected with the left end of the telescopic inner groove (a 10) through the inner bag (a 8), the first compression spring (a 2) is arranged in the inner bag (a 8), one end of the first compression spring (a 2) is fixedly connected with the left end of the telescopic inner groove (a 10), the other end of the first compression spring (a 2) is fixedly connected with the top pressure plate (a 9), one end of the vent groove (a 7) is communicated with the inside of the inner bag (a 8), the other end of the vent groove (a 7) is communicated with the inside of the top pressure ring bag (a 6), one end of the elastic sheet (a 5) is fixedly connected with the butt joint head (a 4), the elastic sheet (a 5) is connected with the outer ring end of the top pressure ring bag (a 6), the other end of the elastic sheet (a 5) is connected with the first butt joint main rod (a 11), and the right end of the second butt joint rod (a 12) is provided with the structure opposite to the first main rod 11.

2. The machine design manufacturing and automatic professional drawing paper cutting device thereof according to claim 1, wherein: the splicing top block (1) comprises a top pressing bottom block (11), a top plate butt joint groove (12), a top plate main body (13), a second compression spring (14), a limiting plate (15), a top pressing connecting plate (16) and an upper buckling groove and a lower buckling groove (17), the top end of the top pressure bottom block (11) is fixedly connected with the bottom end of the limiting plate (15) through a top pressure connecting plate (16), the limiting plate (15) and the jacking connecting plate (16) are movably buckled with the bottom end of the top plate main body (13), the middle part of the left end of the jacking connecting plate (16) is buckled with the top plate main body (13) through a second compression spring (14), the upper and lower buckling grooves (17) are arranged in the middle of the bottom end of the top plate main body (13), the upper and lower splicing rods (k) penetrate through the top pressing bottom block (11) and are buckled with the upper and lower buckling grooves (17), roof main part (13) all are equipped with roof butt joint groove (12) all around, middle part, roof butt joint groove (12) and interfacing apparatus (a) lock joint.

3. The machine design manufacturing and automatic professional drawing paper cutting device thereof according to claim 1, wherein: the maximum length and width of the splicing top block (1) and the splicing bottom block (2) are consistent, the length and width of the splicing top block (1) and the splicing bottom block (2) are consistent with the size of A8 paper, the splicing top block (1) and the splicing bottom block (2) are all provided with 256 blocks, every 2 splicing top blocks (1) are all butted through a butting device (a), and every 2 splicing bottom blocks (2) are also butted through a butting device (a).

4. A machine design manufacturing and its automatic professional drawing paper cutting device according to claim 1 or 2, characterized in that: the right ends of the upper and lower splicing rods (k) are provided with grooves, and the right sides of the upper and lower buckling grooves (17) are provided with convex rods corresponding to the grooves of the upper and lower splicing rods (k).

5. The machine design manufacturing and automatic professional drawing paper cutting device thereof according to claim 1, wherein: the elastic piece (a 5) is uniformly arranged at the right end of the butt joint head (a 4) in a circular ring shape, the elastic piece (a 5) is arc-shaped, and the elastic piece (a 5) protrudes towards the direction opposite to the butt joint assembling rod (a 3).

6. The machine design manufacturing and automatic professional drawing paper cutting device thereof according to claim 1, wherein: the shaft lever positioning convex plate (n) and the handlebar positioning convex plate (o) are semi-cylindrical convex strips.

Technical Field

The invention belongs to the technical field of drawing cutting devices, and particularly relates to a drawing cutting device for mechanical design, manufacturing and automation speciality of the drawing cutting device.

Background

In life, drawings of different sizes are required to be used in different uses, so the drawings are often required to be cut, particularly for professional drawings of mechanical design and manufacture and automation thereof, because the procurement cost of the large-size drawings is relatively low and the usable flexibility is high, schools often provide students of mechanical design and manufacture and automation thereof with the large-size drawings, and the students need to cut according to the size of the standard drawings when in use, in order to facilitate the cutting of the paper, a backing plate for cutting the paper and a cover plate corresponding to the paper are often required to be provided for manual cutting, technical improvement is also obtained along with the rapid development of scientific technology, but in the prior art, when the paper cutting device is used, when the paper cutting device needs to be used for cutting the large-size paper and needs to be used for cutting various papers of different sizes, the backing plate and the apron of jumbo size and multiple dimension that does not ventilate often need to be prepared, and the transport of not being convenient for carry, and during prior art used, backing plate and apron need carry out carrying that corresponds, lose at the backing plate, leak the area, take the wrong time, easily because do not have the backing plate bigger than the apron and lead to the condition that can't carry out better cutting and use, lead to inconveniently.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects of the prior art, a mechanical design manufacturing and automatic professional drawing paper cutting device is provided, so that the problem that a backing plate and a cover plate with large sizes and various non-ventilation sizes are required to be prepared frequently when a large-size paper needs to be used for cutting and a plurality of different-size papers need to be cut in the prior art is solved, the backing plate and the cover plate are inconvenient to carry and carry, the backing plate and the cover plate need to be correspondingly carried when the prior art is used, when the backing plate is lost, a belt is leaked and a belt is wrong, the condition that the backing plate cannot be used for cutting due to the fact that the backing plate larger than the cover plate does not exist easily, and the inconvenience is caused.

(II) technical scheme

The invention is realized by the following technical scheme: the invention provides a mechanical design manufacturing and automatic special drawing paper cutting device thereof, which comprises a splicing top block and a splicing bottom block, wherein the bottom of the splicing top block is buckled with the splicing bottom block;

the splicing bottom block comprises a butt joint device, a handle rod, a connecting rod, a bottom block main body, a positioning clamping groove, a movable shaft, a bottom plate butt joint groove, a movable outer rod, an outer rod sliding groove, a shaft rod sliding groove, an upper splicing rod, a lower splicing rod, a handle rod accommodating groove, a positioning clamping plate, a shaft rod positioning convex plate and a handle rod positioning convex plate, wherein the bottom block main body is provided with the bottom plate butt joint groove at the front, the rear, the left and the right middle parts, the butt joint device is buckled with the bottom plate butt joint groove, the outer rod sliding groove is arranged in the bottom block main body, the top end of the outer rod sliding groove penetrates through the top end of the bottom block main body, the shaft rod sliding groove is embedded in the bottom block main body, the shaft rod sliding groove is communicated with the front and the rear sections of the outer rod sliding groove, the handle rod accommodating groove is embedded in the top end of the bottom block main body, the positioning, the front end and the rear end of the movable shaft are movably buckled in a shaft rod sliding groove, the bottoms of the front end and the rear end of the movable shaft are respectively provided with a positioning clamping groove, the movable shaft is coated with a movable outer rod which is arranged in an outer rod sliding groove, the right end of the movable outer rod is fixedly connected with the left end of a handle rod through a connecting rod, a handle rod positioning convex plate is arranged at the right end of a handle rod accommodating groove, the handle rod is arranged in the handle rod accommodating groove, the upper right side of the handle rod is connected with the handle rod positioning convex plate, the upper splicing rod and the lower splicing rod are arranged at the top end of a bottom block main body, and the bottom block main body is buckled with a splicing;

the butt joint device comprises a screw rod, a first compression spring, a butt joint assembly rod, a butt joint, an elastic sheet, a top pressing ring bag, a vent groove, an inner bag, a top pressing plate, a telescopic inner groove, a first butt joint main rod and a second butt joint main rod, wherein the screw rod is arranged in the middle of the left end of the first butt joint main rod, the second butt joint main rod is locked with the first butt joint main rod through the screw rod, the middle of the left end of the first butt joint main rod is fixedly connected with the middle of the right end of the butt joint through the butt joint assembly rod, the top pressing ring bag is coated on the butt joint assembly rod, the telescopic inner groove is arranged in the first butt joint main rod, the top pressing plate is arranged in the telescopic inner groove, the left end of the top pressing plate is connected with the left end of the telescopic inner groove through the inner bag, the first compression spring is arranged in the inner bag, one end of the first compression spring is fixedly connected with the left, the other end of the vent groove is communicated with the inside of the jacking ring bag, one end of the elastic sheet is fixedly connected with the butt joint, the elastic sheet is connected with the outer ring end of the jacking ring bag, the other end of the elastic sheet is connected with the first butt joint main rod, and the right end of the second butt joint main rod is provided with a structure opposite to the left end of the first butt joint main rod in direction.

Further, the splicing top block comprises a top pressure bottom block, a top plate butt joint groove, a top plate main body, a second compression spring, a limiting plate, a top pressure connecting plate and an upper buckling groove and a lower buckling groove, the top pressure bottom block is fixedly connected with the bottom end of the limiting plate through the top pressure connecting plate, the limiting plate and the top pressure connecting plate are movably buckled with the bottom end of the top plate main body, the middle of the left end of the top pressure connecting plate is buckled with the top plate main body through the second compression spring, the upper buckling groove and the lower buckling groove are arranged in the middle of the bottom end of the top plate main body, an upper splicing rod and a lower splicing rod penetrate through the top pressure bottom block and are buckled with the upper buckling groove and the lower buckling groove, the top plate main body is provided with the.

Furthermore, the maximum length and width of the splicing top block and the splicing bottom block are consistent, the length and width of the splicing top block and the splicing bottom block are consistent with the size of A8 paper, the splicing top block and the splicing bottom block are both provided with 256 blocks, every 2 splicing top blocks are butted through a butting device, every 2 splicing bottom blocks are also butted through a butting device, and therefore the equipment can splice and use the A8 paper to the A0 paper.

Furthermore, the right ends of the upper and lower splicing rods are provided with grooves, and the right sides of the upper and lower buckling grooves are provided with convex rods corresponding to the grooves of the upper and lower splicing rods, so as to ensure stable buckling of the splicing top block and the splicing bottom block.

Furthermore, the elastic sheet is in an arc shape and is uniformly arranged at the right end of the butt joint, and the direction of the elastic sheet is opposite to that of the butt joint assembly rod, so that the elastic sheet can rebound to be buckled when not pressed by the jacking after being compressed by the jacking.

Furthermore, the shaft lever positioning convex plate and the handlebar positioning convex plate are semi-cylindrical convex strips, so that the handlebar and the movable outer pole can be conveniently and quickly positioned and fastened.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

1) for solving prior art when using, when need be cut with the condition that the large size paper cut and need carry out multiple not unidimensional paper to having, often need prepare jumbo size and multiple not ventilation size's backing plate and apron, portable transport not, through being equipped with the polylith concatenation kicking block that can splice, the concatenation bottom block, do not have two concatenation kicking blocks or do not all adopt adjustable interfacing apparatus to splice between two concatenation bottom blocks, and the concatenation bottom block can take out the barre and use as the apron after dismantling, make equipment can carry out the concatenation use of more paper sizes, avoid the carrying of multiple apron backing plate, more portable and carry out the combination that corresponds.

2) When solving prior art and using, backing plate and apron need carry out the carrying that corresponds, lose at the backing plate, the hourglass area, take when wrong, easily because do not have the backing plate bigger than the apron and lead to the condition that can't carry out better cutting and use, lead to inconveniently, through be equipped with the roof pressure bottom block that receives the compression spring roof pressure between concatenation kicking block and concatenation bottom block, the upper and lower splice bar that makes the concatenation bottom block can promote the roof pressure by the roof pressure bottom block after the lock joint groove is automatic lock joint with upper and lower lock joint groove about getting into, and because the concatenation bottom block can be dismantled and carry out the use and the combinability of apron, the condition that avoids backing plate and apron that messenger's equipment can be better can not cooperate the use.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a paper cutting apparatus for machine design, manufacture and automation thereof;

FIG. 2 is a schematic view of a cross-sectional view of the middle of a butt joint elevation of a top and bottom splice blocks of the present invention;

FIG. 3 is a schematic view of a cross-sectional view of the middle of a front view of a splice tray of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of B in FIG. 3 according to the present invention;

FIG. 6 is a schematic view of a cross-sectional view of the middle of a front view of the docking device of the present invention;

FIG. 7 is a schematic view of a front cross-sectional structure of the assembly position of the upper and lower splicing rods in butt joint of the splicing top block and the splicing bottom block;

in the figure: splicing top block-1, splicing bottom block-2, butt joint device-a, handle bar-b, connecting bar-c, bottom block main body-d, positioning clamping groove-e, movable shaft-f, bottom plate butt joint groove-g, movable outer bar-h, outer bar sliding groove-i, shaft bar sliding groove-j, upper and lower splicing bars-k, handle bar receiving groove-l, positioning clamping plate-m, shaft bar positioning convex plate-n, handle bar positioning convex plate-o, screw-a 1, first compression spring-a 2, butt joint assembly bar-a 3, butt joint-a 4, elastic sheet-a 5, top pressing ring capsule-a 6, ventilating groove-a 7, inner capsule-a 8, top pressing plate-a 9, telescopic inner groove-a 10, butt joint one-a 11, butt joint main bar two-a 12, butt joint main bar, A top pressure bottom block-11, a top plate butt joint groove-12, a top plate main body-13, a second compression spring-14, a limiting plate-15, a top pressure connecting plate-16 and an upper and lower buckling groove-17.

Detailed Description

Referring to fig. 1-7, the present invention provides a paper cutting device for machine design and manufacture and its automation speciality: the splicing device comprises a splicing top block 1 and a splicing bottom block 2, wherein the bottom of the splicing top block 1 is buckled with the splicing bottom block 2;

the splicing bottom block 2 comprises a butt joint device a, a rod b, a connecting rod c, a bottom block main body d, a positioning clamping groove e, a movable shaft f, a bottom plate butt joint groove g, a movable outer rod h, an outer rod sliding groove i, a shaft rod sliding groove j, an upper splicing rod k, a lower splicing rod k, a rod accommodating groove l, a positioning clamping plate m, a shaft rod positioning convex plate n and a rod positioning convex plate o, wherein the bottom plate butt joint groove g is arranged in the front, the rear, the left and the right of the bottom block main body d, the butt joint device a is buckled with the bottom plate butt joint groove g, the outer rod sliding groove i is arranged in the bottom block main body d, the top end of the outer rod sliding groove i penetrates through the top end of the bottom block main body d, the shaft rod sliding groove j is embedded in the bottom block main body d, the shaft rod sliding groove j is communicated with the front and the rear sections of the outer rod sliding groove i, the shaft rod accommodating groove l is embedded in the top end of the bottom block main, the handle bar positioning convex plate n is arranged on the right sides of the upper end and the lower end of the shaft bar sliding groove j, the front end and the rear end of the movable shaft f are movably buckled in the shaft bar sliding groove j, the bottoms of the front end and the rear end of the movable shaft f are respectively provided with a positioning clamping groove e, the movable shaft f is wrapped with a movable outer rod h, the movable outer rod h is arranged in an outer rod sliding groove i, the right end of the movable outer rod h is fixedly connected with the left end of a handle bar b through a connecting rod c, the handle bar positioning convex plate o is arranged at the right end of a handle bar accommodating groove l, the handle bar b is arranged in the handle bar accommodating groove l, the upper right side of the handle bar b is connected with the handle bar positioning convex plate o, the upper splicing rod k and the lower splicing rod k are arranged at the top end of a;

the butting device a comprises a screw a1, a first compression spring a1, a butting assembly rod a1, a butting head a1, an elastic sheet a1, a butting ring bag a1, a vent groove a1, an inner bag a1, a butting plate a1, an inner telescopic groove a1, a butting main rod a1 and a butting main rod second a1, wherein the screw a1 is arranged in the middle of the left end of the butting main rod second a1, the butting main rod second a1 is locked with the butting main rod a1 through the screw a1, the middle of the left end of the butting main rod a1 is fixedly connected with the middle of the right end of the butting head a1 through the butting assembly rod a1, the butting ring bag a1 is wrapped on the butting assembly rod a1, the inner telescopic groove a1 is arranged in the butting assembly rod a1, the butting plate a1 is arranged in the inner telescopic groove a1, the butting plate a1 is fixedly connected with the left end of the inner telescopic spring a1, and one end of the inner telescopic spring a1 is fixedly connected with the inner compression spring a1, the other end of the first compression spring a2 is fixedly connected with a top pressure plate a9, one end of the vent groove a7 is communicated with the inside of the inner bag a8, the other end of the vent groove a7 is communicated with the inside of the top pressure ring bag a6, one end of the elastic sheet a5 is fixedly connected with the butt joint a4, the elastic sheet a5 is connected with the outer ring end of the top pressure ring bag a6, the other end of the elastic sheet a5 is connected with the butt joint main rod a11, and the right end of the butt joint main rod b 12 is provided with a structure opposite to the left end of the butt joint main rod a 11.

The splicing top block 1 comprises a top pressure bottom block 11, a top plate butt joint groove 12, a top plate main body 13, a second compression spring 14, a limiting plate 15, a top pressure connecting plate 16 and an upper and lower buckling groove 17, the top end of the top pressure bottom block 11 is fixedly connected with the bottom end of the limiting plate 15 through the top pressure connecting plate 16, the limiting plate 15 and the top pressure connecting plate 16 are movably buckled with the bottom end of the top plate main body 13, the middle part of the left end of the top pressure connecting plate 16 is buckled with the top plate main body 13 through the second compression spring 14, the middle part of the bottom end of the top plate main body 13 is provided with the upper and lower buckling grooves 17, an upper splicing rod k penetrates through the top pressure bottom block 11 and is buckled with the upper and lower buckling grooves 17, the middle parts of the top plate main body 13 in the front, the rear, the left and right.

The splicing top block 1 and the splicing bottom block 2 are consistent in maximum length and width, the splicing top block 1 and the splicing bottom block 2 are consistent in length and width with the A8 paper size, 256 splicing top blocks 1 and 256 splicing bottom blocks 2 are arranged, every 2 splicing top blocks 1 are in butt joint through a butt joint device a, and every 2 splicing bottom blocks 2 are in butt joint through a butt joint device a.

The right end of the upper and lower splicing rods k is provided with a groove, and the right side of the upper and lower buckling grooves 17 is provided with a convex rod corresponding to the groove of the upper and lower splicing rods k.

The elastic piece a5 is uniformly arranged at the right end of the butt joint head a4 in a circular ring shape, the elastic piece a5 is in an arc shape, and the elastic piece a5 protrudes towards the direction opposite to the butt joint assembling rod a 3.

The shaft lever positioning convex plate n and the handlebar positioning convex plate o are both semi-cylindrical convex strips.

The working principle is as follows: when the device is used, the device can be carried according to the using condition, when the device is combined, every two bottom block bodies can be spliced with the butt joint device through the bottom plate butt joint groove arranged, every two top plate bodies can be spliced with the butt joint device through the top plate butt joint groove arranged, when the butt joint device is in butt joint, the elastic sheet arranged on the butt joint device can be extruded to enable the convex surface to be changed into a plane, meanwhile, the elastic sheet can also extrude the jacking ring bag, so that the air in the jacking ring bag can push the jacking plate through the vent groove to drive the inner bag to extend, when the elastic sheet is separated from the jacking force to enter the clamping groove or be separated from the device, the jacking plate can be pulled by the first stretching spring to drive the inner bag to contract, the air in the inner bag pushes the jacking ring bag to expand through the vent groove, the elastic sheet can recover the convex surface due to the restoring force of the restoring force and the jacking ring bag expansion, and the convenient plugging and butt joint between the two bottom block bodies or between the, the equipment can be spliced and used with more paper sizes, meanwhile, the first butt joint main rod and the second butt joint main rod of the butt joint device can be adjusted in distance and detached and replaced through rotation, a gap can be reserved between the two bottom block main bodies of the equipment or between the two top plate main bodies during splicing, the gap can be reserved for cutting large-size paper to be spliced, the backing plate can be slightly cut and the gap can be reserved to facilitate alignment and cutting of the paper, the bottom block main body of the equipment can be staggered with the splicing top block, the upper splicing rod and the lower splicing rod arranged on the bottom block main body can push the top pressing bottom block to shift, the upper splicing rod and the lower splicing rod can be separated from buckling connection with the upper buckling groove and the lower buckling groove, then the bottom block main body can be separated from connection with the splicing top block downwards, the equipment can pry the connecting rod through the rod accommodating groove to enable the connecting rod to drive the connecting rod to be separated from buckling connection with the rod positioning convex plate, make the positioning groove of loose axle and positioning card board can dock, then portable barre, the connecting rod makes the positioning card board get into positioning groove, and the loose axle is by axostylus axostyle location flange lock joint, realize the switching that the bottom block main part becomes the clamp plate that has the handle, after using the bottom block main part, can fall back the barre of roof pressure bottom block according to taking out the process and accomodate, then pass the upper and lower splice bar of bottom block main part and get into about the top pressure bottom block back-to-back in the catching groove, at this moment, the upper and lower splice bar of concatenation bottom block can be promoted roof pressure and upper and lower catching groove automatic lock joint by the roof pressure bottom block after getting into about the catching groove, the better condition of leaking the area and losing of avoiding the apron, and because the combinability of equipment, the condition that the backing plate and apron can not cooperate the use can be better avoided to messenger's.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.