Material receiving mechanism of printing machine

Abstract

The material receiving mechanism comprises a base, side supports are connected to the left side and the right side of the top of the base, guide grooves are formed in the inner walls of the side supports, first screws are rotationally connected into the guide grooves, first motors are connected to the upper ends of the first screws, and first nut seats are connected to the outer walls of the first screws in a threaded mode; a lifting frame is connected between the two first nut seats, the upper end of the lifting frame is connected with an arc-shaped supporting seat, the upper portion of the outer wall of the side supporting seat is connected with a second motor, the output end of the second motor is connected with a driving wheel, friction wheels are arranged between the driving wheel and the arc-shaped supporting seat, and a material collecting roller is connected between the two friction wheels; the device is reasonable in structural design, the distance between the fixed baffle and the movable baffle can be adjusted, packaging bags wound by the material collecting roller can be aligned and clamped conveniently, the phenomenon that materials deviate in the winding process is prevented, after the lifting frame descends, the discharging slope ejects the material collecting roller out, manual lifting for material taking is not needed, and more labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of material receiving mechanisms, in particular to a material receiving mechanism of a printing press. Background Art

[0002] A modern printing press is generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. When working, it first makes the text and images to be printed into a printing plate, installs it on the printing press, and then applies ink to the places with text and images on the printing plate manually or by a printing press, and then transfers it directly or indirectly to paper or other substrates, thereby reproducing a printed product identical to the printing plate.

[0003] The material receiving mechanism of the printing press in the prior art has a simple structure and is fixed to the bracket by bolts, which cannot be quickly disassembled and assembled. Before and after use, the winding roller needs to be manually lifted and lowered, which consumes a lot of physical strength. For this reason, technicians in the relevant technical field have made improvements to this, such as the "material receiving mechanism of a rotary printing press" proposed in Chinese patent application number CN202221190405.2. In this application document, friction wheels 1 at both ends of the winding roller fit with friction wheel 2 above, which fixes the winding roller and reduces the difficulty of installation. However, there is no baffle on the outside of the winding roller, and the material is prone to deviation during winding, which is not conducive to subsequent use. For this reason, we propose a film roll winding device for plastic packaging bags. Utility Model Content

[0004] The purpose of the utility model is to provide a material receiving mechanism of a printing press to overcome the technical problems existing in the prior art.

[0005] In order to achieve the above technical objectives and the above technical effects, the utility model provides the following technical solutions:

[0006] A material receiving mechanism of a printing press comprises a base, wherein side supports are connected to the left and right sides of the top of the base, a guide groove is provided on the inner wall of the side support, a first screw is rotatably connected in the guide groove, a first motor is connected to the upper end of the first screw, a first nut seat is screwed on the outer wall of the first screw, a lifting frame is connected between two of the first nut seats, an arc-shaped support is connected to the upper end of the lifting frame, a second motor is connected to the upper part of the outer wall of the side support, a driving wheel is connected to the output end of the second motor, a friction wheel is provided between the driving wheel and the arc-shaped support, a material receiving roller is connected between the two friction wheels, and a PLC controller is connected to the outer wall of the base.

[0007] Preferably, in a material receiving mechanism of a printing press, a fixed baffle is connected to the left side of the outer wall of the material receiving roller, a accommodating groove is provided in the right part of the material receiving roller, four limiting grooves are circumferentially provided in the accommodating groove, a second screw is rotatably connected to the center of the accommodating groove, a second nut seat is screwed on the outer wall of the second screw, limiting rods are connected to the outer wall of the second nut seat, the ends of the four limiting rods extending out of the limiting grooves are commonly connected to a movable baffle, the right end of the second screw is connected to a knob, and a circular through hole for the second screw to pass through is provided in the center of the friction wheel on the right side.

[0008] Preferably, in a material receiving mechanism of a printing press, the lifting frame includes a U-shaped arm, the outer wall of the U-shaped arm is fixedly connected to a first nut seat, the front side of the top of the U-shaped arm is connected to a vertical axis, and the upper end of the vertical axis is fixedly connected to an arc-shaped bracket.

[0009] Preferably, in a material receiving mechanism of a printing press, a semicircular bearing is embedded in the inner wall of the arc-shaped bracket, and the center line of the semicircular bearing, the axis line of the friction wheel and the axis line of the driving wheel are located in the same vertical plane.

[0010] Preferably, in a material receiving mechanism of a printing press, a discharge slope is connected to the top of the base, and a front end of the discharge slope is tilted downward.

[0011] Preferably, in a material receiving mechanism of a printing press, the fixed baffle and the movable baffle are both arranged in a circular ring structure.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has a reasonable structural design. The friction wheel at the end of the material receiving roller fits the semicircular bearing. After the first screw rotates, the first nut seat drives the lifting frame to move, and the upper end of the friction wheel can abut the driving wheel. After the second screw rotates, the second nut seat drives the limit rod to move horizontally, and the distance between the fixed baffle and the movable baffle can be adjusted, which is convenient for aligning and clamping the packaging bag rolled up by the material receiving roller to prevent the material from running off the track during the rolling process. The second motor is used to drive the driving wheel to rotate, so as to roll the packaging bag. After the lifting frame descends, the unloading slope pushes the material receiving roller out, and there is no need for manual lifting to take materials, which is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the receiving roller in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the bracket in the utility model.

[0018] In the figure: 1. base; 2. side support; 3. guide groove; 4. first screw; 5. first motor; 6. first nut seat; 7. lifting frame; 8. arc-shaped support seat; 9. second motor; 10. driving wheel; 11. friction wheel; 12. receiving roller; 13. fixed baffle; 14. containing groove; 15. limiting groove; 16. second screw; 17. second nut seat; 18. limiting rod; 19. movable baffle; 20. knob; 21. unloading slope; 71. U-shaped arm; 72. vertical axis; 81. semicircular bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 As shown, this embodiment is a material receiving mechanism of a printing press, comprising a base 1, side supports 2 are connected to the left and right sides of the top of the base 1, a guide groove 3 is provided on the inner wall of the side support 2, a first screw 4 is rotatably connected in the guide groove 3, a first motor 5 is connected to the upper end of the first screw 4, a first nut seat 6 is screwed on the outer wall of the first screw 4, a lifting frame 7 is connected between the two first nut seats 6, an arc-shaped support seat 8 is connected to the upper end of the lifting frame 7, a second motor 9 is connected to the upper part of the outer wall of the side support 2, a driving wheel 10 is connected to the output end of the second motor 9, a friction wheel 11 is provided between the driving wheel 10 and the arc-shaped support seat 8, a material receiving roller 12 is connected between the two friction wheels 11, and a PLC controller is connected to the outer wall of the base 1.

[0021] A fixed baffle 13 is connected to the left side of the outer wall of the receiving roller 12, and a accommodating groove 14 is provided in the right part of the receiving roller 12. The accommodating groove 14 is circumferentially provided with four limiting grooves 15, and a second screw 16 is rotatably connected to the center of the accommodating groove 14. A second nut seat 17 is screwed to the outer wall of the second screw 16, and limiting rods 18 are connected to the outer wall of the second nut seat 17. The ends of the four limiting rods 18 extending out of the limiting grooves 15 are commonly connected to a movable baffle 19, and a knob 20 is connected to the right end of the second screw 16. A round through hole for the second screw 16 to pass through is provided in the center of the friction wheel 11 on the right side.

[0022] The lifting frame 7 includes a U-shaped arm 71, the outer wall of the U-shaped arm 71 is fixedly connected to the first nut seat 6, the top front side of the U-shaped arm 71 is connected to a vertical shaft 72, and the upper end of the vertical shaft 72 is fixedly connected to an arc-shaped support seat 8, so as to facilitate lifting the receiving roller 12.

[0023] A semicircular bearing 81 is embedded in the inner wall of the arc-shaped bracket 8 , and the corresponding center line of the semicircular bearing 81 , the axis line of the friction wheel 11 and the axis line of the driving wheel 10 are located in the same vertical plane, which is convenient for the installation and operation of the friction wheel 11 .

[0024] The top of the base 1 is connected to a discharge slope 21 , the front end of which is tilted downward, so that the receiving roller 12 can be pushed out after the lifting frame 7 is lowered, which is convenient for discharge and collection.

[0025] The fixed baffle 13 and the movable baffle 19 are both arranged in a circular ring structure, which can limit the position of the packaging bag and prevent it from falling off.

[0026] The specific implementation of the utility model is:

[0027] When the device is in use, an external power supply is connected, the base 1 is placed on a plane, the receiving roller 12 is installed on the arc-shaped bracket 8, the friction wheel 11 at the end of the receiving roller 12 is in contact with the semicircular bearing 81, the first motor 5 drives the first screw 4 to rotate, the first nut seat 6 moves up along the guide groove 3, and the lifting frame 7 can drive the arc-shaped bracket 8 to move up, so that the upper end of the friction wheel 11 abuts against the driving wheel 10, and the end of the packaging bag is adhered to the outer wall of the receiving roller 12, the second screw 16 is rotated by the knob 20, and the limiting groove 15 is used to limit and guide the limiting rod 18, and the second nut seat 17 can drive the limit rod 18 to move horizontally, and then adjust the distance between the fixed baffle 13 and the movable baffle 19, so as to facilitate the alignment and clamping of the packaging bag rolled up by the receiving roller 12, and prevent the material from running off the track during the rolling process. The second motor 9 is used to drive the driving wheel 10 to rotate, and the friction wheel 11 drives the receiving roller 12 to rotate, so as to roll up the packaging bag. After the material is rolled up, the first motor 5 is used to drive the first screw 4 to reverse, and the lifting frame 7 is lowered. The unloading slope 21 can push the receiving roller 12 out, and there is no need to lift the material manually, which is more labor-saving.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A material receiving mechanism of a printing press, comprising a base (1), characterized in that: The left and right sides of the top of the base (1) are connected to side supports (2), the inner wall of the side support (2) is provided with a guide groove (3), a first screw (4) is rotatably connected in the guide groove (3), the upper end of the first screw (4) is connected to a first motor (5), the outer wall of the first screw (4) is screwed with a first nut seat (6), a lifting frame (7) is connected between the two first nut seats (6), the upper end of the lifting frame (7) is connected to an arc-shaped support seat (8), the upper part of the outer wall of the side support (2) is connected to a second motor (9), the output end of the second motor (9) is connected to a driving wheel (10), a friction wheel (11) is provided between the driving wheel (10) and the arc-shaped support seat (8), a material receiving roller (12) is connected between the two friction wheels (11), and the outer wall of the base (1) is connected to a PLC controller.

2. The material receiving mechanism of a printing press according to claim 1, characterized in that: A fixed baffle (13) is connected to the left side of the outer wall of the receiving roller (12); a receiving groove (14) is provided in the right part of the receiving roller (12); four limiting grooves (15) are circumferentially provided in the receiving groove (14); a second screw (16) is rotatably connected to the center of the receiving groove (14); a second nut seat (17) is screwed to the outer wall of the second screw (16); limiting rods (18) are connected to the outer wall of the second nut seat (17); the ends of the four limiting rods (18) extending out of the limiting grooves (15) are commonly connected to a movable baffle (19); a knob (20) is connected to the right end of the second screw (16); and a round through hole for the second screw (16) to pass through is provided in the center of the friction wheel (11) on the right side.

3. The material receiving mechanism of a printing press according to claim 1, characterized in that: The lifting frame (7) comprises a U-shaped arm (71), the outer wall of the U-shaped arm (71) is fixedly connected to the first nut seat (6), the front side of the top of the U-shaped arm (71) is connected to a vertical shaft (72), and the upper end of the vertical shaft (72) is fixedly connected to the arc-shaped bracket (8).

4. The material receiving mechanism of a printing press according to claim 1, characterized in that: A semicircular bearing (81) is embedded in the inner wall of the arc-shaped bracket (8), and the center line of the semicircular bearing (81), the axis line of the friction wheel (11) and the axis line of the driving wheel (10) are located in the same vertical plane.

5. The material receiving mechanism of a printing press according to claim 1, characterized in that: The top of the base (1) is connected to a discharge slope (21), and the front end of the discharge slope (21) is arranged to be inclined downward.

6. The material receiving mechanism of a printing press according to claim 2, characterized in that: The fixed baffle (13) and the movable baffle (19) are both arranged in a circular ring structure.

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