CN110406247B

CN110406247B - Syringe printing mechanism

Info

Publication number: CN110406247B
Application number: CN201910403281.8A
Authority: CN
Inventors: 郑夫青
Original assignee: Zhejiang Huanzhong Mechanical Equipment Manufacturing Co ltd
Current assignee: Zhejiang Huanzhong Mechanical Equipment Manufacturing Co ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2021-10-08
Anticipated expiration: 2039-05-15
Also published as: CN110406247A

Abstract

The invention provides a syringe printing mechanism, comprising: the upper part of the printing rotating shaft is provided with a printing rotating disc, the printing rotating disc is provided with a plurality of pressing devices, a supporting plate used for pushing the syringe cylinder to move upwards is arranged below the printing rotating disc, each pressing device comprises a connecting piece which penetrates through the connecting piece, the connecting piece is slidably arranged on the printing rotating disc, the bottom of the connecting piece is provided with a pressure adjusting device, the pressure adjusting device comprises a fixed cylinder, and a sliding rod inserted into the fixed cylinder from top to bottom is arranged in the fixed cylinder; the bottom end of the sliding rod is fixed with a pressing piece, and an elastic element sleeved outside the sliding rod is arranged between the pressing piece and the fixed cylinder. According to the invention, the pressure adjusting device is additionally arranged at the bottom of the connecting piece, and the downward pressure of the sliding rod of the pressure adjusting device is adjusted by using the elastic element, so that the phenomenon of deformation during the scale mark printing of the syringe cylinder is avoided.

Description

Syringe printing mechanism

Technical Field

The invention relates to the field of automatic production equipment of medical instruments, in particular to a printing mechanism of an injector.

Background

At present, the outer side wall of the syringe cylinder body for medical treatment needs to be printed with scale marks so as to be convenient for medical care personnel to use. The mode of printing the scale marks on the syringe cylinder can be screen printing, however, the screen printing has the defects of low speed, manual operation and adjustment in the printing process, easy abrasion and damage of the screen and the like. Therefore, pad printing has been used to print the cylinder marks. However, the printing precision is high and deviation cannot occur due to special requirements on the printing position of the scale marks of the syringe cylinder.

In the prior art, as patent document 1: CN201810949543.6, a syringe printing positioning mechanism patent is disclosed, which comprises a positioning component, a positioning component and a positioning component, wherein the positioning component comprises an upper chuck and a lower chuck, the edges of the upper chuck and the lower chuck are respectively provided with a concave groove which is inwards concave and used for fixing a syringe; a plurality of positioning blocks which are circumferentially arranged are arranged on the upper end face of the upper chuck, and the positioning blocks are fixed on the upper chuck through detachable positioning fasteners; the side face of the outer end of the positioning block is provided with a positioning groove which is inwards sunken and matched with the outer side face of the injection tube handle. The invention adopts a plurality of independent positioning blocks to replace an integral positioning disc, and when the printing of individual products is changed or unqualified, the printing is qualified by adjusting the independent positioning blocks. Its weight that has the connecting piece, clamp plate fixed block, the gyro wheel itself is great for compress tightly fixing device and apply great pressure to the syringe barrel, when being used for producing the less barrel of diameter (being less than 1 cm), its syringe barrel often by the deformation of pushing down, takes place the distortion when making the syringe barrel rotate, the phenomenon that can appear warping when the scale mark of syringe barrel prints this moment.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a syringe printing mechanism, wherein a pressure adjusting device is additionally arranged at the bottom of a connecting piece, and an elastic element is used for adjusting the downward pressure of a sliding rod of the pressure adjusting device, so that the facing pressure of a syringe cylinder is the elastic force of the elastic element and the weight of the sliding rod, the pressure is small and convenient to adjust, and the defects that the existing syringe printing mechanism has the defects that the connecting piece, a pressing plate fixing block and a roller have large weight, a pressing and fixing device exerts large pressure on the syringe cylinder, when the syringe printing mechanism is used for producing a cylinder with a small diameter (less than 1 cm), the syringe cylinder is always pressed and deformed, the syringe cylinder is twisted when rotating, and the scale mark of the syringe cylinder is deformed when printing are overcome.

(II) technical scheme

In order to solve the above technical problem, the present invention provides a syringe printing mechanism, including: the syringe comprises a printing rotating shaft, a plurality of pressing devices and a plurality of clamping plates, wherein the printing rotating shaft is arranged at the upper part of the printing rotating shaft, the plurality of pressing devices are arranged on the printing rotating shaft, and the supporting plates used for pushing the syringe cylinder to move upwards are arranged below the printing rotating shaft; the bottom of the connecting piece is provided with a pressure adjusting device, wherein the pressure adjusting device comprises a first sliding part and a second sliding part, the first sliding part is provided with a sliding rail, and the second sliding part is partially or completely arranged in the sliding rail, so that the second sliding part moves relative to the first sliding part; the lower part of the first sliding part or the second sliding part is provided with a pressing piece; the second sliding part or the first sliding part is fixedly connected with the fixing part; the pressure adjustment device is further provided with an elastic element for adjusting the resistance to the relative movement between the first sliding portion or the second sliding portion. And (h) =. The invention adds the pressure adjusting device at the bottom of the connecting piece, and uses the elastic element to adjust the resistance of the relative movement between the first sliding part and the second sliding part, so as to adjust the downward pressure of the pressure adjusting device, thus the facing pressure of the syringe cylinder is the elastic force of the elastic element and the weight of the first sliding part or the second sliding part, the pressure is smaller and the adjustment is convenient, and the problems that the existing syringe printing mechanism has larger weight of the connecting piece, the pressing plate fixing block and the roller, so that the pressing and fixing device applies larger pressure to the syringe cylinder, when the syringe printing mechanism is used for producing cylinders with smaller diameter (less than 1 cm), the syringe cylinder is always pressed downwards to deform, the syringe cylinder is twisted when rotating, and the scale mark of the syringe cylinder is deformed when printing are avoided.

Preferably, the first sliding part is a fixed cylinder which is a closed cylindrical cylinder body, and a cavity which is communicated up and down is formed in the cylinder body to form a sliding rail; the second sliding part is a sliding rod which is a cylindrical rod body, and the pressing piece is arranged at the bottom of the sliding rod; the slide bar is inserted into the fixed cylinder from top to bottom; the bottom end of the connecting piece is provided with a fixing piece which is fixedly connected with the fixing barrel; the pressing piece is arranged at the bottom of the sliding rod, and a spring sleeved outside the sliding rod is arranged between the pressing piece and the bottom of the fixed cylinder. The invention adopts the structure of the fixed cylinder and the slide rod, and sundries are not easy to enter the slide rail of the slide cylinder, so the use is more durable.

Preferably, the first sliding part is a sliding cylinder, the inner side surface of the sliding cylinder is inwards recessed to form a sliding rail, the second sliding part is a fixed rod, the fixed rod is in a shape matched with the sliding rail and is slidably mounted in the sliding rail, a fixing piece is mounted at the bottom end of the connecting piece, the lower part of the fixed rod is fixed on the fixing piece, and the pressing piece is mounted at the bottom end of the sliding cylinder; and a spring sleeved outside the fixed rod is arranged between the pressing piece and the sliding cylinder. The invention adopts the structure of the sliding cylinder and the fixed rod, so that sundries are not easy to enter the sliding rail of the sliding cylinder, and the use is more durable; the cylindrical barrel is not needed, and the size of the sliding barrel is smaller.

Preferably, an installation cavity is arranged inside the pressing piece, and a shaft sleeve is arranged in the installation cavity; the bottom of the second sliding part is provided with an insertion part which is inserted into the shaft sleeve. The pressing piece is internally provided with an installation cavity, and a shaft sleeve is arranged in the installation cavity; the bottom of the sliding rod is provided with an insertion part, the insertion part is inserted into the shaft sleeve, the second sliding part and the shaft sleeve are convenient to connect and fix, the pressed piece can be effectively prevented from falling off, and the pressing piece is convenient to disassemble and assemble.

Preferably, the bottom of the pressing piece is provided with a ring sleeve, a positioning through hole penetrating to the bottom end of the shaft sleeve is arranged in the ring sleeve, and the positioning through hole is used for inserting a fixed cylinder at the top of the syringe barrel. The ring sleeve is arranged at the bottom of the pressing piece, the positioning through hole penetrating to the bottom end of the shaft sleeve is arranged in the ring sleeve, and the positioning through hole is used for inserting the fixed cylinder at the top of the syringe cylinder body, so that the fixed cylinder at the top of the syringe cylinder body is conveniently positioned and fixed, and the positioning is accurate.

Preferably, the middle part of the printing rotating shaft is provided with a connecting cylinder for fixedly connecting the printing rotating shaft, the connecting cylinder is provided with a transmission disc, and the transmission disc is provided with a fixing groove for fixing the injector; the fixing groove is used for fixing the syringe cylinder body to enable the top of the syringe cylinder body to be opposite to the bottom of the pressure adjusting device. The fixed groove is arranged, so that the syringe barrel is convenient to limit, and the fixed groove is matched with other equipment to rotate and assemble, and the transmission is smooth and has no stagnation.

Preferably, the lower part of the printing rotating shaft is provided with a fixing sleeve, the fixing sleeve is provided with a fixing frame, and the supporting plate is fixedly connected with the fixing frame. The invention is provided with a fixing sleeve arranged at the lower part of the printing rotating shaft, the fixing sleeve is provided with a fixing frame, and the supporting plate is fixedly connected with the fixing frame.

Preferably, the mount includes the fixed disk, extension board is equipped with to fixed disk one side, detachably installs the reference column on the extension board, reference column top fixed connection layer board. The fixing frame comprises a fixing disc, an extension plate is arranged on one side of the fixing disc, a positioning column is detachably arranged on the extension plate, and a supporting plate is arranged at the top end of the positioning column, so that the height of the positioning column can be conveniently adjusted, the height position of the supporting plate can be adjusted, and the position of the upper top of the syringe barrel can be adjusted.

Preferably, the supporting plate comprises a fixing piece positioned at the bottom; the fixed piece is provided with an extension piece, and the top of the extension piece is provided with a supporting inclined plate. The invention is provided with a fixing piece positioned at the bottom; the fixed part is provided with an extension part, and the top of the extension part is provided with a supporting inclined plate which is convenient for adjusting the horizontal position of the positioning column by adjusting the length of the extension part.

Preferably, the fixed block is equipped with on the connecting piece top, the riser is equipped with to the lateral surface of fixed block, the nut pivot is equipped with on the riser, rotationally is equipped with the gyro wheel that is on a parallel with the printing carousel in the nut pivot. The top end of the connecting piece is provided with a fixed block, the outer side surface of the fixed block is provided with a vertical plate, the vertical plate is provided with a nut rotating shaft, the nut rotating shaft is rotatably provided with a roller parallel to the circumferential direction of the printing turntable, and the fixed block passes through the roller to reduce the moving resistance of the fixed block.

(III) advantageous effects

The invention provides a printing mechanism of an injector, which has the following advantages:

1. the invention adds the pressure adjusting device at the bottom of the connecting piece and uses the elastic element to adjust the downward pressure of the sliding rod of the pressure adjusting device, so that the facing pressure of the syringe cylinder is the elastic force of the elastic element and the weight of the sliding rod, the pressure is smaller and the adjustment is convenient, and the problems that the existing syringe printing mechanism has larger self weights of the connecting piece, the pressing plate fixing block and the roller, so that the pressing and fixing device applies larger pressure to the syringe cylinder, when the syringe printing mechanism is used for producing cylinders with smaller diameter (less than 1 cm), the syringe cylinder is always pressed downwards to deform, so that the syringe cylinder is twisted when rotating, and the scale mark of the syringe cylinder deforms when printing.

Drawings

FIG. 1 is a cross-sectional structural view of an embodiment 1 of the syringe printing mechanism of the present invention;

fig. 2 is a partially enlarged view of a portion a of fig. 1 of embodiment 1 of the syringe printing mechanism;

FIG. 3 is a perspective view of embodiment 2 of the injector printing mechanism of the present invention;

fig. 4 is a partially enlarged view of a portion B of fig. 3 of the syringe printing mechanism embodiment 2 of the present invention.

1. Printing rotating shaft, 2, printing rotating disc, 3, pressing device, 4, supporting plate, 5, connecting cylinder, 6, driving disc, 7, fixing groove, 8, fixing sleeve, 9, limiting piece, 10, fixing frame, 11, fixing disc, 12, extending plate, 13, positioning column, 14, fixing piece, 15, extending piece, 16, supporting inclined plate, 17, connecting piece, 18, pressure adjusting device, 19, fixing cylinder, 20, sliding rod, 21, elastic element, 22, fixing block, 23, vertical plate, 24, nut rotating shaft, 25, roller, 26, fixing piece, 27, pressing piece, 28, mounting cavity, 29, shaft sleeve, 30, ring sleeve, 31, positioning through hole, 32, inserting part, 33 and limiting piece; 34. a slide cylinder; 35. fixing the rod; 36. a slide rail.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; may be mechanically coupled, directly coupled, or indirectly coupled through an intermediary.

Example 1

As shown in fig. 1 and 2, the present invention provides a syringe printing mechanism including: the device comprises a printing rotating shaft 1, wherein a printing rotating disc 2 is arranged at the upper part of the printing rotating shaft, a plurality of pressing devices 3 which are circumferentially arranged are arranged on the printing rotating disc, a supporting plate 4 used for pushing a syringe cylinder body to move upwards is arranged below the printing rotating disc, a connecting cylinder 5 used for fixedly connecting the printing rotating shaft is arranged in the middle of the printing rotating shaft, a transmission disc 6 is arranged on the connecting cylinder, and a fixing groove 7 used for fixing the syringe is arranged on the transmission disc; the fixing groove is used for fixing the syringe cylinder body to enable the top of the syringe cylinder body to be opposite to the bottom of the pressure adjusting device. The lower part of the printing rotating shaft is provided with a fixed sleeve 8, the fixed sleeve is provided with a fixed frame 10, and the supporting plate is fixedly connected with the fixed frame. The mount includes fixed disk 11, extension board 12 is equipped with to fixed disk one side, detachably installs reference column 13 on the extension board, the layer board that both ends have the inclined plane is installed on the reference column top. The pallet includes a fixture 14 at the bottom; the outside of the fixed part is provided with an extension part 15, and the top of the extension part is provided with a supporting inclined plate 16 for pushing up the pressed part. The supporting sloping plate inclines upwards from one end.

The hold-down device comprises a connecting member 17 which is slidably mounted on the printing turntable. The bottom end of the connecting piece is provided with a fixing piece 26, and the fixing piece is fixedly connected with the fixing barrel. The bottom of the connecting piece is provided with a pressure adjusting device 18 which comprises a fixed barrel 19, and a cavity which is communicated up and down is arranged in the barrel body to form a slide rail; a slide bar 20 inserted into the fixed cylinder from top to bottom is arranged in the fixed cylinder; the bottom end of the slide bar is provided with a pressing piece 27, and an elastic element 21 sleeved outside the slide bar is arranged between the pressing piece and the fixed cylinder and used for adjusting the pressure applied to the top of the syringe cylinder. The elastic element of the invention adopts a spring.

An installation cavity 28 is arranged in the pressed piece, and a shaft sleeve 29 is arranged in the installation cavity; the shaft sleeve is provided with a limiting sheet 33, the bottom of the sliding rod is provided with an insertion part 32, and the insertion part is inserted into the shaft sleeve. The bottom of the pressing piece is provided with a ring sleeve 30, a positioning through hole 31 penetrating to the bottom end of the shaft sleeve is arranged in the ring sleeve, and the positioning through hole is used for inserting a fixed cylinder at the top of the syringe barrel. And the top of the sliding rod is provided with a limiting piece 9 with the outer diameter larger than the inner diameter of the fixed cylinder. The connecting piece top is equipped with fixed block 22, the lateral surface of fixed block is equipped with riser 23, be equipped with nut pivot 24 on the riser, rotationally be equipped with the gyro wheel 25 that is on a parallel with the printing carousel in the nut pivot.

In this embodiment, the transmission disc drives the syringe barrel to rotate and enter the lower part of the compressing and fixing device, and along with the movement of the syringe barrel, the syringe barrel slides upwards along the supporting inclined plate, so that the supporting plate supports the syringe barrel, the syringe barrel is upwards jacked into the positioning through hole in the ring sleeve to push the sliding rod to move upwards, the spring provides a downward adjusting elastic force, and the movement position of the sliding rod and the pressure applied to the syringe barrel are adjusted.

Example 2

As shown in fig. 3 and 4, embodiment 2 differs from embodiment 1 in that the pressure adjusting means includes a slide cylinder 34 and a fixing rod 35. The first sliding part is a sliding cylinder, the inner side surface of the sliding cylinder is inwards recessed to form a sliding rail, the fixed rod is in a shape matched with the sliding rail and is slidably arranged in the sliding rail, the bottom end of the connecting piece is provided with a fixed piece, the lower part of the fixed rod is fixed on the fixed piece, and the pressed piece is arranged at the bottom end of the sliding cylinder; and a spring sleeved outside the fixed rod is arranged between the pressing piece and the sliding cylinder.

In this embodiment, drive the syringe barrel through the driving disc and rotate and enter into and compress tightly the fixing device below, along with the motion of syringe barrel, syringe barrel upwards slides along supporting the swash plate for the syringe barrel is held up to the layer board, and during the syringe barrel upwards pushed up the locating hole in the ring cover, promote the barrel pole upward movement, the spring provides a decurrent adjustment elasticity, adjusts the motion position of barrel pole and applies the pressure for syringe barrel.

Example 3

The invention provides a syringe printing mechanism, comprising: the syringe comprises a printing rotating shaft, wherein a printing rotating disc is arranged at the upper part of the printing rotating shaft, a plurality of pressing devices are arranged on the printing rotating disc, and a supporting plate used for pushing a syringe cylinder to move upwards is arranged below the printing rotating disc; the lower part of the first sliding part or the second sliding part is provided with a pressing piece; the pressure adjustment device is further provided with an elastic element for adjusting the resistance to the relative movement between the first sliding portion or the second sliding portion.

The above embodiments are only used for illustrating the present invention, and the structure, connection mode and the like of each component can be changed, and all equivalent changes and improvements made on the basis of the technical scheme of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A syringe printing mechanism comprising: the syringe comprises a printing rotating shaft, a plurality of pressing devices and a plurality of clamping plates, wherein the printing rotating shaft is arranged at the upper part of the printing rotating shaft, the plurality of pressing devices are arranged on the printing rotating shaft, and the supporting plates used for pushing the syringe cylinder to move upwards are arranged below the printing rotating shaft; the bottom of the connecting piece is provided with a pressure adjusting device, wherein the pressure adjusting device comprises a first sliding part and a second sliding part, the first sliding part is provided with a sliding rail, and the second sliding part is partially or completely arranged in the sliding rail, so that the second sliding part moves relative to the first sliding part; the lower part of the first sliding part or the second sliding part is provided with a pressing piece; the second sliding part or the first sliding part is fixedly connected with the fixing part; the pressure adjusting device is also provided with an elastic element for adjusting the resistance of the relative movement between the first sliding part and the second sliding part;

the first sliding part is a fixed cylinder which is a closed cylindrical cylinder body, a cavity which is communicated up and down is formed in the cylinder body to form a sliding rail, the second sliding part is a sliding rod which is a cylindrical rod body, and the pressing piece is arranged at the bottom of the sliding rod; the slide bar is inserted into the fixed cylinder from top to bottom, and the top of the slide bar is provided with a limiting piece with the outer diameter larger than the inner diameter of the fixed cylinder; the fixing piece is fixedly connected with the fixing barrel; the pressing piece is arranged at the bottom of the sliding rod, and a spring sleeved outside the sliding rod is arranged between the pressing piece and the bottom of the fixed cylinder;

an installation cavity is arranged in the pressed piece, and a shaft sleeve is arranged in the installation cavity; the bottom of the second sliding part is provided with an inserting part which is inserted into the shaft sleeve;

the bottom of the pressing piece is provided with a ring sleeve, a positioning through hole penetrating to the bottom end of the shaft sleeve is arranged in the ring sleeve, and the positioning through hole is used for inserting a fixed cylinder at the top of the syringe barrel.

2. The syringe printing mechanism according to claim 1, wherein a connecting cylinder for fixedly connecting the printing rotating shaft is installed in the middle of the printing rotating shaft, a driving disc is installed on the connecting cylinder, and a semicircular fixing groove for fixing the syringe is formed in the driving disc and is recessed inwards from the outer periphery; the fixing groove is used for fixing the syringe cylinder body to enable the top of the syringe cylinder body to be opposite to the bottom of the pressure adjusting device.

3. The injector printing mechanism according to claim 1, wherein a fixing sleeve is mounted on a lower portion of the printing shaft, the fixing sleeve is provided with a fixing frame, and the supporting plate is fixedly connected to the fixing frame.

4. The syringe printing mechanism of claim 3, wherein the fixing frame comprises a fixing plate, an extension plate is arranged on one side of the fixing plate, a positioning column is detachably arranged on the extension plate, and a supporting plate with two inclined surfaces is arranged at the top end of the positioning column.

5. The syringe printing mechanism of claim 1 wherein the pallet includes a mount at a bottom; the outside of the fixed part is provided with an extension part, and the top of the extension part is provided with a supporting inclined plate for pushing up the pressed part.

6. The syringe printing mechanism of claim 1 wherein the connecting member has a fixed block mounted on a top end thereof, a riser mounted on an outer side surface of the fixed block, a nut runner mounted on the riser, the nut runner having a roller rotatably mounted thereon parallel to the printing plate.