Scraper structure of printing machine

Abstract

The utility model discloses a scraper structure of a printing machine, which comprises a scraper rest, a mounting surface is arranged on the scraper rest, and a scraper main body is mounted on the mounting surface; an inner rod is arranged in the tool rest, a plurality of pin rods are arranged on the inner rod, and the pin rods extend to the mounting surface; a pressing plate is arranged on the mounting surface, a plurality of locking bolts are arranged on the pressing plate, and the threaded ends of the locking bolts are connected to the ends of the corresponding pin rods in a meshed mode; the scraper main body can be quickly positioned through the matching of the inclined mounting surface and the positioning groove, the shifting risk is further eliminated through the transverse limiting of the baffle block, and the mounting efficiency and the position precision are improved; and by screwing the locking bolt, the pressing plate is gradually pressed down by virtue of the fulcrum action of the pin rod, so that the scraper main body is tightly attached to the mounting surface. In the working process, the scraper body keeps constant pressure under the fixing effect of the pressing plate, continuous ink scraping or cleaning operation is carried out on a plate face along with operation of a printing machine, and it is guaranteed that the scraper is in the optimal working state all the time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a printing machine doctor blade structure belongs to printing machine technical field. BACKGROUND

[0002] In the field of printing equipment, the conventional scheme adopts a plurality of bolt direct fixing mode, and has the following defects: first, the doctor blade body needs to be fixed point by point with the mounting surface through a plurality of bolts, lacks a guiding positioning mechanism, resulting in that the installation needs to be repeatedly calibrated in a two-dimensional plane, and the time consumption is long; secondly, the bolt direct locking is easy to produce stress concentration, causes the local deformation of the doctor blade, and lacks anti-movement design, and the equipment vibration is easy to cause the lateral deviation of the doctor blade, and affects the printing quality; in addition, the replacement of the doctor blade needs to completely disassemble all bolts, and the maintenance process is complicated; in view of the above problems, the utility model provides a printing machine doctor blade structure. UTILITY MODEL CONTENTS

[0003] In view of the above-mentioned technical deficiencies, the utility model aims at providing a printing machine doctor blade structure, which avoids installation interference and ensures subsequent fastening effect, and prevents the doctor blade from loosening due to vibration in high-speed operation.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a printing machine doctor blade structure, which comprises:

[0005] A tool holder is provided with a mounting surface;

[0006] A doctor blade body is installed on the mounting surface;

[0007] An inner rod is arranged in the tool holder, a plurality of pin rods are arranged on the inner rod, and the plurality of pin rods extend to the mounting surface;

[0008] A pressing plate is used to press the doctor blade body on the mounting surface;

[0009] Among them, a plurality of locking bolts are arranged on the pressing plate, and the threaded ends of the plurality of locking bolts are engaged with the corresponding pin rod ends.

[0010] Preferably, the two ends of the tool holder are fixedly connected with a stop block;

[0011] When the doctor blade body is installed on the mounting surface, the two ends of the doctor blade body abut against the inner wall of the same side stop block.

[0012] Preferably, a sliding groove is arranged in the tool holder, and the inner rod slides in the sliding groove through a spring;

[0013] A plurality of waist type grooves are arranged on the mounting surface, and the plurality of pin rods slide in the corresponding waist type grooves;

[0014] A plurality of connecting holes are arranged on the upper side of the doctor blade body, the connecting holes comprise vertical grooves and horizontal grooves, and one end of the vertical groove is in an open state.

[0015] Preferably, a pressing rod is fixedly connected to the end of the inner rod away from the spring, and the end of the pressing rod passes through the stop block on the same side and extends to the outside.

[0016] Preferably, a locking bolt is engaged with the stop block near the pressing rod, and the threaded end of the locking bolt is movably pressed against the side wall of the pressing rod.

[0017] Preferably, the mounting surface is located below the tool holder, and the mounting surface is inclined.

[0018] Preferably, a positioning groove is provided on the upper side of the mounting surface;

[0019] When the scraper body is attached to the mounting surface, the upper side of the scraper body is inserted into the positioning groove.

[0020] Preferably, the pressure plate is provided with an elastic arc;

[0021] When the locking bolt is tightened, the locking bolt presses down on the pressure plate, causing the lower side of the pressure plate to press against the side wall of the scraper body.

[0022] Preferably, the lower side of the pressure plate near the scraper body is chamfered.

[0023] Preferably, the upper side of the tool holder is fixedly connected with multiple connecting bolts.

[0024] Compared with existing technologies:

[0025] 1. This utility model utilizes the cooperation between the inclined mounting surface and the positioning groove to enable the doctor blade body to be quickly positioned. The lateral limiting of the stop block further eliminates the risk of movement, improving installation efficiency and positional accuracy. By tightening the locking bolts, the pressure plate is gradually pressed down with the help of the pin, tightly fitting the doctor blade body against the mounting surface. During operation, the doctor blade body maintains constant pressure under the fixing action of the pressure plate, continuously scraping ink or cleaning the printing plate as the printing press runs, ensuring that the doctor blade is always in optimal working condition.

[0026] 2. This utility model allows the pin rod to slide automatically along the waist-shaped groove under the action of the spring. Combined with the vertical and horizontal groove structure of the scraper body, it forms a three-stage quick-installation system of "sliding-locking-resetting", which improves the installation efficiency. The design of the reserved space for the locking bolt and the elastic fit of the pressure plate avoids installation interference and ensures the subsequent fastening effect, preventing the scraper from loosening due to vibration during high-speed operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is an exploded view of the entire utility model;

[0029] Figure 3 This is an exploded view of the tool holder and stop block of this utility model;

[0030] Figure 4 This is an exploded cross-sectional view of the tool holder and inner rod of this utility model;

[0031] Figure 5 This is a cross-sectional view of the blade holder, scraper body, and pressure plate of this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the scraper body of this utility model;

[0033] Figure 7 This is an exploded cross-sectional view of the blade holder, scraper body, and pressure plate of this utility model.

[0034] In the picture:

[0035] 1. Knife holder;

[0036] 101. Mounting surface; 102. Slide groove; 103. Waist-shaped groove; 104. Positioning groove;

[0037] 2. Scraper body, 201, vertical groove, 202, horizontal groove;

[0038] 3. Inner rod, 301. Pin, 302. Pressing rod;

[0039] 4. Pressure plate, 401, elastic arc, 5. Locking bolt;

[0040] 6. Spring;

[0041] 7. Stop block, 8. Locking bolt, 9. Connecting bolt. Detailed Implementation

[0042] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0043] Example 1

[0044] like Figures 1-7 As shown in this embodiment, a printing press scraper structure is provided, including a scraper holder 1, a mounting surface 101 on the scraper holder 1, the mounting surface 101 being located below the scraper holder 1 and inclined, and a plurality of connecting bolts 9 being fixedly connected to the upper side of the scraper holder 1, and a scraper body 2 being mounted on the mounting surface 101; an inner rod 3 is provided inside the scraper holder 1, and a plurality of pins 301 are provided on the inner rod 3, the plurality of pins 301 extending to the mounting surface 101; a pressure plate 4 is provided on the mounting surface 101, the pressure plate 4 being used to press the scraper body 2 onto the mounting surface 101, wherein a plurality of locking bolts 5 are provided on the pressure plate 4, and the threaded ends of the plurality of locking bolts 5 are engaged with the ends of the corresponding pins 301.

[0045] Both ends of the blade holder 1 are fixedly connected to a stop block 7; when the scraper body 2 is installed on the mounting surface 101, both ends of the scraper body 2 abut against the inner wall of the stop block 7 on the same side, and the stop block 7 can prevent the scraper body 2 from moving on the mounting surface 101.

[0046] A positioning groove 104 is provided on the upper side of the mounting surface 101; when the scraper body 2 is connected to the mounting surface 101, the upper side of the scraper body 2 is inserted into the positioning groove 104.

[0047] The lower side of the pressure plate 4, near the scraper body 2, is chamfered to facilitate the installation of the scraper body 2 between the mounting surface 101 and the pressure plate 4.

[0048] Work process:

[0049] During installation, the doctor blade body 2 is first placed under the blade holder 1 along the inclined mounting surface 101, with its two ends abutting against the inner wall of the stop block 7 for lateral positioning, and its upper side inserted into the positioning groove 104 for longitudinal positioning. By tightening the locking bolt 5, the pressure plate 4 is gradually pressed down with the help of the pin 301, tightly fitting the doctor blade body 2 against the mounting surface 101. During operation, the doctor blade body 2 maintains constant pressure under the fixing action of the pressure plate 4, continuously scraping ink or cleaning the printing plate as the printing press runs, ensuring that the doctor blade is always in optimal working condition.

[0050] Example 2

[0051] like Figures 2-4 and Figure 6 As shown, based on Embodiment 1, in this embodiment, the tool holder 1 has a sliding groove 102 inside, and the inner rod 3 slides in the sliding groove 102 by the spring 6;

[0052] Multiple waist-shaped grooves 103 are provided on the mounting surface 101, and multiple pins 301 slide in the corresponding waist-shaped grooves 103, with the ends of the pins 301 protruding out of the waist-shaped grooves 103.

[0053] The upper side of the scraper body 2 is provided with a plurality of L-shaped connecting holes, including a vertical groove 201 and a horizontal groove 202. The vertical groove 201 and the horizontal groove 202 are vertically connected, and the end of the vertical groove 201 away from the horizontal groove 202 is open.

[0054] When the scraper body 2 is installed on the mounting surface 101, the horizontal groove 202 coincides with the corresponding waist-shaped groove 103.

[0055] When the scraper body 2 is installed on the mounting surface 101, the pressure plate 4 is connected to the mounting surface 101 by the locking bolt 5. At this time, the locking bolt 5 does not need to be tightened too much, so that there is space between the pressure plate 4 and the mounting surface 101 for installing the scraper body 2.

[0056] Slide the inner rod 3, causing the inner rod 3 to compress the spring 6 and slide. At this time, the pin 301 slides from one end of the waist groove 103 to the other end. In this state, when the scraper body 2 is installed on the mounting surface 101, the pin 301 can slide into the opening end of the vertical groove 201. After the scraper body 2 is installed in place, the pin 301 is at the connection between the vertical groove 201 and the horizontal groove 202. Then release the inner rod 3. Under the spring pressure of the spring 6, the inner rod 3 returns to its original position with the pin 301, causing the pin 301 to slide to the end of the horizontal groove 202 away from the vertical groove 201. In this way, the scraper body 2 can be pre-connected between the mounting surface 101 and the pressure plate 4.

[0057] Then tighten the locking bolt 5. At this time, the pressure of the pressure plate 4 can be used to fix the scraper body 2 stably on the mounting surface 101.

[0058] The end of the inner rod 3 away from the spring 6 is fixedly connected to a pressing rod 302. The end of the pressing rod 302 passes through the stop block 7 on the same side and extends to the outside.

[0059] A locking bolt 8 is engaged with the stop 7 near the pressing rod 302, and the threaded end of the locking bolt 8 presses against the side wall of the pressing rod 302.

[0060] Example 3

[0061] like Figure 5 As shown, based on the above embodiments, in this embodiment, in order to more stably press the scraper body 2 onto the mounting surface 101 and improve the installation stability of the scraper body 2, the pressure plate 4 is provided with an elastic arc 401, such as... Figure 5 As shown, the inner arc of the elastic arc 401 faces the scraper body 2, and the elastic arc 401 is set along the length of the pressure plate 4. The elastic arc 401 has a certain elasticity. When the locking bolt 5 is tightened, the locking bolt 5 presses the pressure plate 4, and the elastic arc 401 deforms, so that the lower side of the pressure plate 4 is pressed against the side wall of the scraper body 2.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A doctor blade structure for a printing press, characterized in that, include: Tool holder (1), on which a mounting surface (101) is provided; The scraper body (2) is mounted on the mounting surface (101); The inner rod (3) is set inside the tool holder (1), and multiple pins (301) are provided on the inner rod (3), with the multiple pins (301) extending to the mounting surface (101); Pressure plate (4) is used to press the scraper body (2) onto the mounting surface (101); The pressure plate (4) is provided with multiple locking bolts (5), and the threaded ends of the multiple locking bolts (5) are engaged with the ends of the corresponding pins (301).

2. The printing press doctor blade structure according to claim 1, characterized in that, Both ends of the tool holder (1) are fixedly connected with stop blocks (7); When the scraper body (2) is installed on the mounting surface (101), both ends of the scraper body (2) abut against the inner wall of the stop block (7) on the same side.

3. The printing press doctor blade structure according to claim 2, characterized in that, The tool holder (1) has a sliding groove (102) inside, and the inner rod (3) slides in the sliding groove (102) by means of a spring (6); The mounting surface (101) is provided with a plurality of waist-shaped grooves (103), and a plurality of pins (301) slide in the corresponding waist-shaped grooves (103); The upper side of the scraper body (2) is provided with a plurality of connecting holes, the connecting holes including a vertical groove (201) and a horizontal groove (202), one end of the vertical groove (201) being open.

4. The printing press scraper structure according to claim 3, characterized in that, The inner rod (3) is fixedly connected to a pressing rod (302) at the end away from the spring (6). The end of the pressing rod (302) passes through the stop block (7) on the same side and extends to the outside.

5. The printing press doctor blade structure according to claim 4, characterized in that, A locking bolt (8) is engaged with a stop (7) near the pressing rod (302), and the threaded end of the locking bolt (8) is movably pressed against the side wall of the pressing rod (302).

6. The printing press doctor blade structure according to claim 1, characterized in that, The mounting surface (101) is located below the tool holder (1), and the mounting surface (101) is inclined.

7. The printing press doctor blade structure according to claim 6, characterized in that, The upper side of the mounting surface (101) is provided with a positioning groove (104); When the scraper body (2) is connected to the mounting surface (101), the upper side of the scraper body (2) is inserted into the positioning groove (104).

8. The printing press doctor blade structure according to claim 1, characterized in that, An elastic arc (401) is provided on the pressure plate (4); When the locking bolt (5) is tightened, the locking bolt (5) presses against the pressure plate (4), so that the lower side of the pressure plate (4) is pressed against the side wall of the scraper body (2).

9. The printing press doctor blade structure according to claim 1, characterized in that, The lower side of the pressure plate (4) near the scraper body (2) is chamfered.

10. A printing press doctor blade structure according to claim 1, characterized in that, The upper side of the tool holder (1) is fixedly connected with multiple connecting bolts (9).

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