Printing machine discharging mechanism

Abstract

The utility model discloses a printing machine discharging mechanism which comprises a discharging frame, two discharging arms and brakes arranged on the two discharging arms, a discharging swing seat is arranged on the discharging frame in a rotating mode, and a rotating shaft of the discharging swing seat is parallel to the direction from one discharging arm to the other discharging arm. The two discharging arms are arranged on the discharging swing seat in a sliding mode and swing along with the discharging swing seat, the discharging swing seat is provided with an adjusting assembly for driving the two discharging arms to move in the face-to-face or back-to-back mode, and the discharging frame is provided with a driving assembly for driving the discharging swing seat to swing. The utility model has the following advantages and effects: the structure is reliable, the service life is longer, and the assembly is convenient.

Description

Technical Field

[0001] The utility model relates to a printing machine, in particular to a material feeding mechanism of a printing machine. Background Art

[0002] A printing machine uses fluid ink with strong fluidity. The ink is transferred to the graphic part of the printing plate through an ink fountain roller and an anilox roller, and then the printing pressure is applied by a pressure cylinder to transfer the ink on the printing plate to the printing substrate, and finally the printing process is completed after drying. A flexographic printing machine generally includes a material feeding mechanism, a transmission mechanism, a printing mechanism, a drying mechanism, and a winding mechanism. In order to facilitate the loading and unloading of the printing substrate on the material feeding mechanism, the existing material feeding mechanisms are provided with a lifting component for controlling the lifting of the printing substrate, so as to avoid the operation of manually lifting the printing substrate. In order to avoid the structure of the existing material feeding mechanisms on the market, this improvement was born. Content of the Utility Model

[0003] The purpose of the utility model is to provide a material feeding mechanism of a printing machine, which has a reliable structure, a longer service life and is convenient to assemble.

[0004] The above technical purpose of the utility model is achieved by the following technical solutions: a material feeding mechanism of a printing machine, including a material feeding frame, two material feeding arms, and brakes arranged on the two material feeding arms. A material feeding swing seat is rotatably arranged on the material feeding frame, and the rotation axis of the material feeding swing seat is parallel to the direction from one material feeding arm to the other material feeding arm. The two material feeding arms are slidably arranged on the material feeding swing seat and swing with the material feeding swing seat. An adjusting component for driving the two material feeding arms to move towards or away from each other is arranged on the material feeding swing seat, and a driving component for driving the material feeding swing seat to swing is arranged on the material feeding frame.

[0005] By adopting the above technical solutions, the driving component drives the material feeding swing seat to drive the material feeding arm to rotate around the rotation connection to control the horizontal height of the material feeding arm, so as to adjust the height of the printing substrate. After adjusting the material feeding arm to the required position, the distance between the two material feeding arms is adjusted through the adjusting component to control the loading and unloading operation of the printing substrate. This setting form has a reliable structure, a longer service life and is convenient to assemble.

[0006] It is further set as: the driving component includes a driving arm that moves with the material feeding swing seat and is located on one side of the rotation axis of the material feeding swing seat, and a driving cylinder connecting the driving arm and the material feeding frame.

[0007] By adopting the above technical solutions, the driving cylinder cooperates with the driving arm to control the swing of the material feeding swing seat, so as to realize the adjustment of the horizontal height of the material feeding arm on the material feeding swing seat.

[0008] Further configured as: the adjusting assembly includes a double-headed threaded rod rotatably arranged on the material feeding swing seat and threadedly connected to the two material feeding arms, a driving member fixedly arranged on the material feeding swing seat, and a linkage structure that constitutes the linkage between the driving member and the double-headed threaded rod.

[0009] By adopting the above technical solution, the driving member drives the double-headed threaded rod to rotate through the linkage structure, and the two-way threaded structure of the double-headed threaded rod is used to control the synchronous separation or synchronous approach movement of the two material feeding arms, so as to realize the loading and unloading operation of the printing substrate. And this setting structure has better self-locking property. Even if the adjusting assembly fails, the accidental falling of the printing substrate will not occur.

[0010] Further configured as: the double-headed threaded rod and the linkage structure are arranged on the side of the material feeding swing seat opposite to the material feeding arms.

[0011] By adopting the above technical solution, this setting structure can prevent the printing substrate from contacting the adjusting assembly, thereby avoiding the damage of the printing substrate caused by accidental contact with the adjusting assembly, and can also play a protective role for the adjusting assembly.

[0012] Further configured as: the linkage structure includes a driving bevel gear driven by the driving member and a driven bevel gear that rotates with the double-headed threaded rod and meshes with the driving bevel gear.

[0013] By adopting the above technical solution, the driving member drives the driving bevel gear to rotate, and the cooperation between the driving bevel gear and the driven bevel gear is used to drive the double-headed threaded rod to rotate, so as to achieve the linkage purpose.

[0014] Further configured as: the material feeding arm includes a sliding seat slidably arranged on the material feeding swing seat and an armrest connected to the brake. A detachable positioning structure is provided between the armrest and the sliding seat, and the armrest installed on the sliding seat has a tendency to make the positioning structure position the two.

[0015] By adopting the above technical solution, the armrest is installed on the sliding seat and is fixed on the sliding seat under the cooperation of gravitational potential energy and the positioning structure, so that the armrest can move with the material feeding swing seat. This setting structure makes the assembly more convenient.

[0016] Further configured as: the positioning structure includes a plurality of positioning pins fixedly arranged on the sliding seat and positioning holes arranged on the armrest and corresponding to the plurality of positioning pins one by one for the positioning pins to insert into.

[0017] By adopting the above technical solution, the armrest is inserted and fixed on the positioning pins under the action of gravity, so as to realize the convenient assembly between the two.

[0018] Further configured as: the insertion end of the positioning insertion post is provided with a tightly fitting compensation portion that extends outward and gradually tapers, a partial position of the positioning insertion hole is adapted to the tightly fitting compensation portion, and an elastic telescopic groove is formed on the tightly fitting compensation portion.

[0019] By adopting the above technical solution, during the process of inserting the positioning insertion post into the positioning insertion hole, the tightly fitting compensation portion is extruded and elastically deformed through the provided elastic telescopic groove, so as to compensate for the assembly tolerance formed during assembly and improve the assembly stability between the boom and the sliding seat.

[0020] In summary, the utility model has the following beneficial effects: the structure of the utility model is reliable, has a longer service life and is convenient for assembly. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the embodiment;

[0022] Figure 2 It is a partial exploded view of the embodiment;

[0023] Figure 3 It is a partial structural schematic diagram of the embodiment;

[0024] Figure 4 It is a partial sectional view of the embodiment;

[0025] Figure 5 It is another partial structural schematic diagram of the embodiment.

[0026] In the figure: 1, material feeding rack; 2, material feeding arm; 21, sliding seat; 22, boom; 3, brake; 4, material feeding swing seat; 5, driving assembly; 51, driving arm; 52, driving cylinder; 61, double-headed threaded rod; 62, driving member; 63, driving bevel gear; 64, driven bevel gear; 7, positioning structure; 71, positioning insertion post; 72, positioning insertion hole; 8, tightly fitting compensation portion; 9, elastic telescopic groove. Detailed Embodiment

[0027] The following further details the present utility model with reference to the drawings.

[0028] Refer to Figures 1 to 5 , a material feeding mechanism of a printing machine, including a material feeding rack 1, two material feeding arms 2 and brakes 3 arranged on the two material feeding arms 2. A material feeding swing seat 4 is rotatably arranged on the material feeding rack 1, and the rotation axis of the material feeding swing seat 4 is parallel to the direction from one material feeding arm 2 to the other material feeding arm 2. The two material feeding arms 2 are slidably arranged on the material feeding swing seat 4 and swing along with the material feeding swing seat 4. An adjusting assembly for driving the two material feeding arms 2 to move towards or away from each other is arranged on the material feeding swing seat 4, and a driving assembly 5 for driving the material feeding swing seat 4 to swing is arranged on the material feeding rack 1.

[0029] The discharging arm 2 includes a sliding seat 21 slidably arranged on the discharging swing seat 4 and an arm frame 22, and the brake 3 is installed on the arm frame 22. The driving assembly 5 includes a driving arm 51 fixedly arranged on the discharging swing seat 4 and located on one side of the rotation axis of the discharging swing seat 4, and a driving cylinder 52 connecting the driving arm 51 and the discharging rack 1. The cylinder body of the driving cylinder 52 is hinged to the discharging rack 1, and the telescopic rod is hinged to the driving arm 51.

[0030] The adjusting assembly includes a double-headed threaded rod 61 rotatably arranged on the discharging swing seat 4 and threadedly connected to the two sliding seats 21, a driving member 62 fixedly arranged on the discharging swing seat 4, and a linkage structure constituting the linkage between the driving member 62 and the double-headed threaded rod 61. The double-headed threaded rod 61 and the linkage structure are arranged on the side of the discharging swing seat 4 opposite to the discharging arm 2, and the double-headed threaded rod 61 passes through the sliding seat 21 and is threadedly connected thereto.

[0031] The driving member 62 is a motor fixedly arranged on the discharging swing seat 4, and the linkage structure includes a driving bevel gear 63 fixedly arranged on the output shaft of the driving member 62 and a driven bevel gear 64 fixedly arranged on the double-headed threaded rod 61 and meshing with the driving bevel gear 63.

[0032] A detachable positioning structure 7 is provided between the arm frame 22 and the sliding seat 21, and the arm frame 22 installed on the sliding seat 21 has a tendency to make the positioning structure 7 position the two. The positioning structure 7 includes a plurality of positioning pins 71 fixedly arranged on the sliding seat 21 and positioning sockets 72 opened on the arm frame 22 and corresponding to the plurality of positioning pins 71 one by one for insertion.

[0033] An insertion end of the positioning pin 71 is integrally provided with a tight-fitting compensation portion 8 extending outward and gradually reducing in diameter, and a partial position of the positioning socket 72 is adapted to the tight-fitting compensation portion 8; an elastic expansion groove 9 is opened on the tight-fitting compensation portion 8. When the positioning pin 71 is inserted into the positioning socket 72, the two will not be separated during the rotation stroke of the discharging swing seat 4.

[0034] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A feeding mechanism for a printing press, comprising a feeding rack (1), two feeding arms (2) and brakes (3) arranged on the two feeding arms (2), characterized in that: A feeding rack (1) is rotatably provided with a feeding swing seat (4), and the rotation axis of the feeding swing seat (4) is parallel to the direction from one feeding arm (2) to the other feeding arm (2). Two said feeding arms (2) are slidably arranged on the feeding swing seat (4) and swing with the feeding swing seat (4). An adjusting component for driving the two feeding arms (2) to move towards or away from each other is provided on the feeding swing seat (4), and a driving component (5) for driving the feeding swing seat (4) to swing is provided on the feeding rack (1).

2. The feeding mechanism of the printing press according to claim 1, characterized in that: The driving component (5) includes a driving arm (51) that moves with the feeding swing seat (4) and is located on one side of the rotation axis of the feeding swing seat (4), and a driving cylinder (52) connecting the driving arm (51) and the feeding rack (1).

3. The feeding mechanism of the printing press according to claim 1, characterized in that: The adjusting component includes a double-headed threaded rod (61) rotatably arranged on the feeding swing seat (4) and threadedly connected to the two feeding arms (2), a driving member (62) fixedly arranged on the feeding swing seat (4), and a linkage structure that links the driving member (62) and the double-headed threaded rod (61).

4. The feeding mechanism of the printing press according to claim 3, characterized in that: The double-headed threaded rod (61) and the linkage structure are arranged on the side of the feeding swing seat (4) opposite to the feeding arms (2).

5. The feeding mechanism of the printing press according to claim 3, characterized in that: The linkage structure includes a driving bevel gear (63) driven by the driving member (62) and a driven bevel gear (64) that rotates with the double-headed threaded rod (61) and meshes with the driving bevel gear (63).

6. The feeding mechanism of the printing press according to claim 1, characterized in that: The feeding arm (2) includes a sliding seat (21) slidably arranged on the feeding swing seat (4) and an arm frame (22) connected to the brake (3). A detachable positioning structure (7) is provided between the arm frame (22) and the sliding seat (21), and the arm frame (22) installed on the sliding seat (21) has a tendency to make the positioning structure (7) position the two of them.

7. The feeding mechanism of the printing press according to claim 6, characterized in that: The positioning structure (7) includes a plurality of positioning pins (71) fixedly arranged on the sliding seat (21) and positioning holes (72) provided on the arm frame (22) corresponding to the plurality of positioning pins (71) one by one for them to be inserted into.

8. The unwinding mechanism of the printing press according to claim 7, characterized in that: The insertion end of the positioning pin (71) is provided with a tight-fitting compensation portion (8) that extends outward and gradually tapers, a partial position of the positioning hole (72) is adapted to the tight-fitting compensation portion (8), and an elastic expansion slot (9) is opened on the tight-fitting compensation portion (8).

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