A 32 - page double - fold device and its electric - control - knife hybrid folder

Abstract

The present invention discloses a 32 - page positive and reverse folding device and an electric - control - knife hybrid folding machine, which include a frame body, a paper - feeding assembly, a paper - discharging assembly, a folding - knife assembly for folding the paper on the paper - feeding assembly in the positive or reverse direction, and a folding - roller transmission assembly for conveying the folded paper to the paper - discharging assembly. The paper - feeding assembly is arranged to be capable of two - way feeding, and the frame body is arranged to be selectively installed on both sides of the 16 - page folding output end of the folding machine to correspond to two installation conversion stations for positive folding and reverse folding. For the 32 - page positive and reverse folding device of the present invention, the forward and reverse rotation of the paper - feeding assembly eliminates the mechanical commutation mechanism and only needs to be realized through the switching of forward and reverse conveying rotation, with a simple and durable structure and convenient operation; further, the device can complete the positive and reverse folding conversion faster with only the minimum number of functional units (folding - knife assembly, front stop - gauge assembly, paper - discharging port assembly).

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and particularly relates to a 32 - page positive - and - negative folding device and an electric - control - knife hybrid folding machine thereof. Background Art

[0002] In the prior art, the 32 - page positive - and - negative folding devices of electric - control - knife hybrid folding machines are divided into two types:

[0003] One is an airborne 32 - page positive - and - negative folding device (see the appendix Figure 1 ). This device includes two sets of positive - and - negative folding knife assemblies (b), two sets of positive - and - negative front register assemblies (c), and two sets of positive - and - negative paper output port assemblies (f). The four folding wallboards (e) and (g) are laterally fixed on the folding operation side wallboard of the folding machine. The paper sheet descends from the mid - line of the 16 - page folding and then turns right (at this time, the paper feeding assembly (d) rotates clockwise) to the position of the positive - folding front register assembly (c) shown in the figure. The positive - folding folding knife assembly (b) cuts down and folds the paper, and after being transmitted by the folding roller transmission assembly (a), the paper exits from the position of the positive - folding paper output port assembly (f) shown in the figure as a 32 - page positive - folded sheet; the paper sheet descends from the mid - line of the 16 - page folding and then turns left (at this time, the paper feeding assembly (4) rotates counterclockwise) to the negative - folding front register assembly (c), and the negative - folding folding knife assembly (b) cuts down and folds the paper, and after being transmitted by the folding roller transmission assembly (a), the paper exits from the negative - folding paper output port assembly (f) as a 32 - page negative - folded sheet. It can be seen from the above description that this device consists of two sets of folding knife assemblies, front register assemblies, and paper output port assemblies sharing a set of folding roller transmission assembly and a paper feeding assembly that needs to be reversed for positive - and - negative conversion. The structure is complex, and the space available for operation and maintenance is narrow. Moreover, in the actual use of the equipment, the opportunity for converting between positive and negative 32 - page folding is not much, mostly changing once every few months or only using one type of 32 - page folding, either positive or negative, for a long time. Of course, this device can also be installed with only a set of folding knife assembly, front register assembly, and paper output port assembly for the 32 - page positive - folding function unit shown on the right in the appendix Figure 1 . When 32 - page negative - folding is required, disassemble and install the above - mentioned function unit to the corresponding negative - folding position on the left and then reverse the movement mechanism of the paper feeding assembly (d) to complete the 32 - page positive - and - negative folding conversion, but the conversion time required is long.

[0004] Another prior - art 32 - page positive - and - negative folding method is that the folding machine main body only has a 16 - page folding function, and a set of independent folding single - machine is used to complete the 32 - page positive - and - negative folding (refer to the existing patent CN201510210783.0). The principles of realizing 32 - page positive - and - negative folding by other single - machines are attached Figure 2 and 3:This single-fold machine has inner and outer frames. The outer frame is equipped with casters and can move freely. As shown in the figure, the front lay assembly (a), the folding knife assembly (b), the forward and reverse sheet feeding wheel group (c), the folding roller drive (d), and the sheet discharging assembly (e) are connected to the inner frame (f) and can move up and down and flip inside the outer frame along with the inner frame (as shown in the figure for 32-page reverse folding and 32-page forward folding), and multiple people are required to cooperate for flipping. During reverse folding, the folding knife assembly (b) and the front lay assembly (a) are located at the upper part of the machine body, which conforms to the visual operation and adjustment habits and is comfortable and convenient. However, during forward folding, the folding knife assembly (b) and the front lay assembly (a) are at the lower part of the machine body, which does not conform to the visual operation and adjustment habits, making the operation awkward and very inconvenient. At the same time, aligning the paper (paper output from the previous folding) is time-consuming and difficult, affecting the 32-page folding accuracy, and the single-machine cost is higher than that of the above-mentioned on-board 32-page positive and negative folding device. However, it is more convenient for out-of-machine maintenance than the on-board device, and the time required for positive and negative folding conversion is shorter. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies existing in the prior art and provide a 32-page positive and negative folding device and its electric control knife hybrid folding machine.

[0006] To solve the above technical problem, the present invention first discloses a 32-page positive and negative folding device, including a frame body and a sheet feeding assembly, a sheet discharging assembly, a folding knife assembly for folding the paper on the sheet feeding assembly forward or backward, and a folding roller drive assembly for conveying the folded paper to the sheet discharging assembly installed on the frame body. The sheet feeding assembly is arranged to be bidirectional, and the frame body is arranged to be selectively installed on both sides of the 16-page folding output end of the folding machine to correspond to two installation conversion positions for forward folding and reverse folding.

[0007] Further, it also includes a front lay assembly for stopping the bidirectional conveyance of the paper by the sheet feeding assembly, and the front lay assembly is arranged to be selectively installed at both ends of the sheet feeding assembly.

[0008] Further, a folding roller drive motor drivingly connected to the folding roller drive assembly and a sheet feeding motor drivingly connected to the sheet feeding assembly are installed on the frame body, and the sheet feeding motor is arranged to perform forward and reverse switching control during the conversion between forward folding and reverse folding.

[0009] Further, a grooved guide rail for cooperating with the guide wheel group on the operation side wall panel of the folding machine is provided on one side of the frame body.

[0010] Further, a plurality of universal brake casters are provided at the bottom of the frame body.

[0011] Further, a paper pressing assembly for flattening the paper on the sheet feeding assembly is also provided between the folding knife assembly and the sheet feeding assembly.

[0012] Then, the present invention discloses an electric control knife hybrid folding machine, which includes a folding machine operation side wallboard, a 16-opening folding right side plate, a 16-opening folding left side plate, a turning plate for guiding the paper to both sides of the 16-opening folding center line, and a 32-opening positive and negative folding device according to any one of the above solutions. The turning plate, the 16-opening folding right side plate, and the 16-opening folding left side plate are relatively installed on the folding machine operation side wallboard, and both ends of the paper feeding assembly are selectively connected to the turning plate.

[0013] Further, the folding knife assembly is arranged to be selectively installed on the outer sides of the 16-opening folding right side plate and the 16-opening folding left side plate.

[0014] Compared with the prior art, the advantages of the present invention are as follows:

[0015] For the 32-opening positive and negative folding device of the present invention, the forward and reverse rotation of the paper feeding assembly eliminates the mechanical reversing mechanism and only needs to be realized by switching the forward and reverse conveying rotations. The structure is simple and durable, and the operation is convenient; further, this device only requires the fewest functional units (folding knife assembly, front stop rule assembly, paper outlet assembly) to complete the positive and negative folding conversion faster. And because the paper feeding assembly and the paper outlet assembly are independently driven, they can be independently shut down when 32-opening folding is not required, reducing mechanical wear and saving energy; at the same time, its structure only occupies the position of a single fold, so the space available for operation and maintenance is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Some of the drawings constituting this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0017] Figure 1 is a schematic structural diagram of a 32-opening positive and negative folding device of an electric control knife hybrid folding machine disclosed in the prior art;

[0018] Figure 2 is a schematic structural diagram of the reverse folding of a 32-opening positive and negative folding device of another electric control knife hybrid folding machine disclosed in the prior art;

[0019] Figure 3 is a schematic structural diagram of the forward folding of a 32-opening positive and negative folding device of another electric control knife hybrid folding machine disclosed in the prior art;

[0020] Figure 4 is an axonometric schematic diagram of a 32-opening positive and negative folding device disclosed in the preferred embodiment of the present invention;

[0021] Figure 5 is a front view schematic diagram of the forward folding of a 32-opening positive and negative folding device in an electric control knife hybrid folding machine disclosed in the preferred embodiment of the present invention (hiding the main structure of the folding machine);

[0022] Figure 6 It is a front folding side view schematic diagram of the 32 - page front - and - back folding device disclosed in the preferred embodiment of the present invention on an electric - control - knife hybrid folding machine (hiding the main structure of the folding machine);

[0023] Figure 7 It is a front folding top view schematic diagram of the 32 - page front - and - back folding device disclosed in the preferred embodiment of the present invention on an electric - control - knife hybrid folding machine (hiding the main structure of the folding machine);

[0024] Figure 8 It is a reverse folding front view schematic diagram of the 32 - page front - and - back folding device disclosed in the preferred embodiment of the present invention on an electric - control - knife hybrid folding machine (hiding the main structure of the folding machine).

[0025] Legend description:

[0026] 1. Folder drive assembly; 2. Folder knife assembly; 3. Front stop rule assembly; 4. Sheet feeding assembly; 5. Inner small wallboard; 6. Sheet discharging assembly; 7. Folder drive motor; 8. Sheet pressing assembly; 9. Outer small wallboard; 10. 16 - page folding right side plate; 11. 16 - page folding left side plate; 12. Folding machine operation side wallboard; 13. Guide rail guide wheel set; 14. Grooved guide rail; 15. Sheet feeding motor; 16. Folder support wallboard; 17. Universal belt - brake caster; 18. Steering plate; 19. 16 - page folding center line. Detailed implementation manners

[0027] For the convenience of understanding the present invention, the following will describe the present invention more comprehensively and meticulously in combination with the specification drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

[0028] Such as Figures 4 - 8As shown, the present invention first discloses a 32-page forward and reverse folding device, including a frame body and a paper feeding assembly 4 installed on the frame body, a paper discharging assembly 6, a folding knife assembly 2 for folding the paper on the paper feeding assembly 4 forward or reversely, and a folding roller transmission assembly 1 for transmitting the folded paper to the paper discharging assembly 6. Specifically, the frame body is a structure similar to a "mouth", including an inner small wall panel 5, an outer small wall panel 9 and two folding roller supporting wall panels 16, the inner small wall panel 5 and the outer small wall panel 9 are arranged opposite to each other, the two folding roller supporting wall panels 16 are arranged opposite to each other and installed between the inner small wall panel 5 and the outer small wall panel 9, wherein the folding roller transmission assembly 1 is installed across between the folding roller supporting wall panels 16, the conveying directions of the paper feeding assembly 4 and the paper discharging assembly 6 are arranged vertically, wherein the paper feeding assembly 4 is used to receive paper output in the forward and reverse directions from the 16-page folding output end. The paper feeding assembly 4 includes an active paper feeding roller, a driven paper feeding roller and a plurality of paper feeding belts sleeved on the active paper feeding roller and the driven paper feeding roller. Similarly, the active paper feeding roller is driven by a paper feeding motor 15 installed on the inner small wallboard 5 through a pulley assembly. The paper discharging assembly 6 includes an active paper discharging roller, a driven paper discharging roller and a plurality of paper discharging belts sleeved on the active paper discharging roller and the driven paper discharging roller. The active paper discharging roller and the folding roller transmission assembly 1 are both driven by a folding roller transmission motor 7 installed on the outer small wallboard 9. The paper feeding assembly 4 is configured to be capable of bidirectional conveying, and the frame body is configured to be selectively installed on both sides of the 16-fold folding output end of the folding machine to correspond to two installation conversion stations for positive folding and reverse folding.

[0029] In this embodiment, a front stop gauge assembly 3 for stopping the paper transported in both directions by the paper feed assembly 4 is also included. The paper transported by the paper feed assembly 4 can be accurately positioned by the front stop gauge assembly 3. Only after being positioned by the front stop gauge assembly 3, the folding knife of the folding knife assembly 2 will move downward. The front stop gauge assembly 3 is configured to be selectively installed at both ends of the paper feed assembly 4 by bolts, so that the two installation conversion stations of forward folding and reverse folding can be stopped by a set of front stop gauge assemblies 3, thereby reducing costs.

[0030] In this embodiment, the bidirectional conveying of the paper feeding belt of the paper feeding assembly 4 is realized by the paper feeding motor 15. Specifically, the frame body is equipped with a folding roller transmission motor 7 connected to the folding roller transmission assembly 1 and a paper feeding motor 15 connected to the paper feeding assembly 4. The paper feeding motor 15 is configured to perform forward and reverse switching control when switching between forward folding and reverse folding. At the same time, the folding roller transmission motor 7 and the paper feeding motor 15 are independently driven and can be independently shut down when 32-page folding is not required, thereby reducing mechanical wear and saving energy.

[0031] In this embodiment, in order to improve the efficiency of the two installation conversion stations of the 32-page front and back folding device at the front and back folding, a grooved guide rail 14 is provided on one side of the frame body, and the grooved guide rail 14 is used to cooperate with the guide rail guide wheel group 13 on the operating side wall plate 12 of the folding machine. When switching, it is only necessary to push the frame body to slide forward and backward along the guide rail guide wheel group 13, which is fast and convenient. At the same time, a plurality of universal casters 17 with brakes are provided at the bottom of the frame body, which also facilitates the overall movement and positioning of the 32-page front and back folding device.

[0032] In this embodiment, in order to prevent the paper from being displaced on the paper feeding assembly 4 and thus affecting the folding quality, a paper pressing assembly 8 for flattening the paper on the paper feeding assembly 4 is further provided between the folding knife assembly 2 and the paper feeding assembly 4. The paper pressing assembly 8 includes pressing blocks arranged on both sides of the folding knife and a support plate arranged on the lower side of the paper feeding belt of the paper feeding assembly 4. The pressing blocks can prevent the paper from warping up, and the support plate can prevent the belt from sinking under pressure, thereby achieving paper pressing from the upper and lower sides of the paper and improving the folding quality.

[0033] Then, the present invention discloses an electric-controlled knife hybrid folding machine, see Figures 5 - 8 (The main structure of the folder is hidden, and only the folder operating side wall panel 12 on one side of the folder is shown), including the folder operating side wall panel 12, the 16-opening folding right side panel 10, the 16-opening folding left side panel 11, the steering plate 18 for guiding the paper to both sides of the 16-opening folding center line 19, and the 32-opening front and back folding device of this embodiment. The grooved guide rail 14 on the 32-opening front and back folding device cooperates with the guide rail guide wheel group 13 on the folder operating side wall panel 12 to move forward and backward, thereby switching the two installation positions of forward folding and reverse folding. Among them, the steering plate 18 has two installation positions, which are symmetrically X-shaped relative to the 16-opening folding center line 19, and are used to guide the paper obliquely downward to both sides of the 16-opening folding center line 19. For details, see Figure 5 and Figure 8 , respectively corresponding to the positive fold and the negative fold, the steering plate 18, the 16-folding right side plate 10 and the 16-folding left side plate 11 are relatively installed on the operating side wall plate 12 of the folding machine, and the two ends of the paper feeding assembly 4 are selectively connected to the steering plate 18. At the same time, the folding knife assembly 2 is set to be selectively installed on the outside of the 16-folding right side plate 10 and the outside of the 16-folding left side plate 11. Therefore, the stop of the two installation conversion stations of positive folding and negative folding can be realized through a set of folding knife assemblies 2, which reduces the cost.

[0034] Although the present invention has been disclosed above in preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. An electric-controlled knife hybrid folding machine, It is characterized in that It comprises a folding machine operating side wall plate (12), a 16-page folding right side plate (10), a 16-page folding left side plate (11), a steering plate (18) for guiding paper to both sides of a 16-page folding center line (19), and a 32-page front and back folding device, wherein the steering plate (18), the 16-page folding right side plate (10), and the 16-page folding left side plate (11) are relatively mounted on the folding machine operating side wall plate (12); The 32-page front and back folding device comprises a frame body and a paper feed assembly (4) mounted on the frame body, a paper discharge assembly (6), a folding knife assembly (2) for folding the paper on the paper feed assembly (4) forwardly or reversely, and a folding roller transmission assembly (1) for transferring the folded paper to the paper discharge assembly (6), wherein the paper feed assembly (4) is configured to be capable of bidirectional transport, and the frame body is configured to be selectively mounted on the left or right side of the 16-page folding output end of the folding machine to correspond to two installation conversion stations for forward folding and reverse folding; a grooved guide rail (14) is disposed on one side of the frame body for cooperating with a guide rail guide wheel assembly (13) on an operating side wall panel (12) of the folding machine; and the frame body also comprises a front stop gauge assembly (3) for stopping the paper bidirectionally transported by the paper feed assembly (4), wherein the front stop gauge assembly (3) is configured to be selectively mounted on the left or right end of the paper feed assembly (4), and the left or right end of the paper feed assembly (4) is selectively connected to the steering plate (18).

2. The electric-knife hybrid folding machine according to claim 1, It is characterized in that The folding knife assembly (2) is configured to be selectively mounted on the outer side of the 16-fold folding leaf right side plate (10) or the outer side of the 16-fold folding leaf left side plate (11).

3. The electric-knife hybrid folding machine according to claim 1, It is characterized in that A paper feeding motor (15) drivingly connected to the paper feeding assembly (4) is mounted on the frame body, and the paper feeding motor (15) is configured to perform forward and reverse switching control when switching between forward folding and reverse folding.

4. The electric-knife hybrid folding machine according to claim 1, It is characterized in that A folding roller transmission motor (7) which is transmission-connected to the folding roller transmission assembly (1) is mounted on the frame, and the power supply of the motor is cut off when the folding machine does not need to fold the pages 32-fold.

5. The electric-knife hybrid folding machine according to claim 1, It is characterized in that A plurality of universal casters (17) with brakes are arranged at the bottom of the frame body.

6. The electric-knife hybrid folding machine according to claim 1, It is characterized in that A paper pressing assembly (8) for flattening the paper on the paper feeding assembly (4) is also provided between the folding knife assembly (2) and the paper feeding assembly (4).

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