Oil-proof paper folding machine

Abstract

The utility model relates to an extraction paper folding machine, in particular to an oil-proof paper folding machine which comprises paper feeding assemblies, a paper cutting assembly, a paper folding assembly and a shifting fork, the paper cutting assembly is connected with the paper feeding assemblies and located between the two paper feeding assemblies, and the paper folding assembly comprises two folding rollers matched with each other. An inserting assembly and a positioning assembly are alternately arranged in the circumferential direction of the folding roller, the shifting fork is arranged on the discharging side of the paper folding assembly, the inserting assembly comprises a paper inserting cutter, the paper inserting cutter is arranged on the folding roller in a swinging mode, a first elastic piece is arranged between the paper inserting cutter and the folding roller, and the positioning assembly comprises a fixing block and a paper clamping block which are matched with each other; the paper clamping block is arranged on the paper clamping mounting shaft, the paper clamping mounting shaft is rotationally arranged on the folding roller, the paper clamping mounting shaft is connected with a driving arm, the driving arm is provided with a cam, during folding, part of paper is folded and pressed between the fixing block and the paper clamping block by the paper inserting cutter, and the cam drives the paper clamping mounting shaft to rotate through the driving arm; the paper clamping installation shaft drives the paper clamping block to swing to be attached to the fixing block to clamp paper.

Description

Technical Field

[0001] This utility model relates to a tissue paper folding machine, and more particularly to an oil-proof paper folding machine. Background Technology

[0002] Chinese utility patent CN222714751U discloses a bottom-folding paper drawer machine. The paper passes between two folding rollers. Both folding rollers have spaced V-grooves and lower blades on their sides. The lower blades press the paper into the V-grooves of the folding rollers. The V-grooves are connected to the negative pressure chamber. The paper adheres to the surface of the folding rollers and completes the folding. However, paper drawers made of materials such as greaseproof paper, aluminum foil paper, and waxed paper cannot be folded by adsorbing the opposite paper through negative pressure. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide an oil-proof paper folding machine, in which the paper inserter presses part of the paper between the fixed block and the paper clamping block, and the cam drives the paper clamping block to clamp with the fixed block, which can reliably clamp the paper and achieve a good folding effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This oil-proof paper folding machine includes a paper feeding assembly, a paper cutting assembly, a paper folding assembly, and a shift fork. The paper cutting assembly is connected to the paper feeding assembly and located between the two sets of paper feeding assemblies. The paper folding assembly is located below the paper cutting assembly. The paper folding assembly includes two cooperating folding rollers. Insertion and positioning components are alternately arranged on the circumference of the folding rollers. The insertion assembly cooperates with the positioning component. The shift fork is located on the discharge side of the paper folding assembly and is used to press the material down. The insertion assembly includes a paper inserter, which is oscillatingly mounted on the folding rollers. A first elastic element is provided between the paper inserter and the folding rollers. The positioning assembly includes a cooperating fixing block and a paper clamping block. The paper clamping block is mounted on a paper clamping mounting shaft, which is rotatably mounted on the folding rollers. The paper clamping mounting shaft is connected to a drive arm, which is equipped with a cam.

[0005] In this design, during folding, the paper inserter folds part of the paper and presses it between the fixed block and the paper clamping block. The cam drives the paper clamping mounting shaft to rotate via the drive arm. The paper clamping mounting shaft causes the paper clamping block to swing and fit against the fixed block to clamp the part of the paper. The extension and retraction of the first elastic element allows the paper inserter to float, making the folding of the paper flexible.

[0006] Preferably, the paper cutting assembly includes an upper paper cutting roller and a lower paper cutting roller that cooperate with each other. The upper paper cutting roller is provided with paper cutting blades spaced apart in the circumferential direction. The paper cutting blades extend out of the surface of the upper paper cutting roller. The lower paper cutting roller is provided with a paper cutting groove in the circumferential direction corresponding to the paper cutting blades. The lower paper cutting roller is provided with a negative pressure chamber, which communicates with the paper cutting groove.

[0007] In this solution, the paper cutter presses part of the paper into the cutting groove to complete the cutting. A negative pressure is formed in the cutting groove to adsorb this part of the paper. At this time, the adsorption force adsorbs this part of the paper onto the surface of the lower cutting roller to prevent it from lifting. Compared with folding and clamping, less force is required.

[0008] Preferably, the transition assembly includes a transition roller and a guide plate. The two transition rollers are rotatably arranged and cooperate with each other. A vertical paper guide channel is formed between the guide plates. Two sets of paper cutting assemblies are respectively arranged on both sides of the paper guide channel. The paper guide channel connects the transition roller and the lower paper cutting roller. Both the lower paper cutting roller and the transition roller are provided with grooves in the axial direction for the guide plate to pass through. The number of paper inserters is twice the number of paper cutters.

[0009] In this design, the paper falls along the paper guide channel to the folding assembly, without significant wrinkles due to air resistance. The transition rollers transport the paper during its descent, smoothing it out.

[0010] Preferably, the insertion assembly further includes a rotating paper insertion mounting shaft, the paper insertion knife is disposed on the paper insertion mounting shaft, and the first elastic element is provided between the end of the paper insertion mounting shaft and the folding roller.

[0011] In this design, the force required for the paper inserter to float is small, and the first elastic element drives multiple paper inserters to float via the paper insert mounting shaft.

[0012] Preferably, a second elastic element is provided between the paper clamping block and the folding roller.

[0013] In this design, the paper clamping block and the fixing block remain pressed together due to the elasticity of the second elastic element, and will not wobble during the rotation of the folding roller, thus ensuring reliable clamping.

[0014] Preferably, the paper feeding assembly includes a traction roller and a guide roller that cooperate with each other.

[0015] In this scheme, traction rollers and guide rollers work together to transport the paper tape.

[0016] Preferably, the end of the paper insertion mounting shaft is connected to a movable shaft via the first elastic element, and the movable shaft is rotatably mounted on the folding roller.

[0017] In this design, when the paper insertion mounting shaft rotates, causing the first elastic element to extend or retract, the movable shaft will rotate to adapt, preventing the first elastic element from bending.

[0018] The beneficial effects of this utility model are as follows: during folding, the paper inserter folds and presses part of the paper between the fixing block and the paper clamping block. The cam drives the paper clamping mounting shaft to rotate via the drive arm. The paper clamping mounting shaft causes the paper clamping block to swing and fit against the fixing block to hold the part of the paper. The extension and retraction of the first elastic element allows the paper inserter to float, making the folding of the paper flexible. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0019] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the paper feeding assembly and paper cutting assembly in this utility model.

[0022] Figure 3 This is a schematic diagram of the transition component and the origami component in this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the end of the folding roller in this utility model.

[0024] Figure 5 This is a cross-sectional view of the folding roller in this utility model.

[0025] In the diagram: 1. Paper feeding assembly; 2. Paper cutting assembly; 3. Paper folding assembly; 4. Folding roller; 5. Insertion assembly; 6. Positioning assembly; 7. Fork; 8. Paper inserter; 9. First elastic element; 10. Fixing block; 11. Paper clamping block; 12. Paper clamping mounting shaft; 13. Drive arm; 14. Cam; 15. Upper paper cutting roller; 16. Lower paper cutting roller; 17. Paper cutter; 18. Paper cutting groove; 19. Negative pressure chamber; 20. Transition assembly; 21. Transition roller; 22. Guide plate; 25. Paper inserter mounting shaft; 26. Second elastic element; 27. Traction roller; 28. Guide roller; 29. ​​Movable shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0029] See appendix Figure 1-5 An embodiment of this invention provides an oil-proof paper folding machine, comprising a paper feeding assembly 1, a paper cutting assembly 2, a paper folding assembly 3, and a fork 7. The paper feeding assembly 1 includes a traction roller 27 and a guide roller 28 that cooperate with each other. The paper cutting assembly 2 is connected to the paper feeding assembly 1 and located between two sets of paper feeding assemblies 1. The paper folding assembly 3 is disposed below the paper cutting assembly 2 and includes two folding rollers 4 that cooperate with each other. The folding rollers 4 are alternately provided with an insertion assembly 5 and a positioning assembly 6 in the circumferential direction. The insertion assembly 5 cooperates with the positioning assembly 6. The fork 7 is disposed on the discharge side of the paper folding assembly 3 and is used to press the material down.

[0030] The insertion component 5 includes a paper inserter 8, which is oscillatingly mounted on the folding roller 4. A first elastic element 9 is provided between the paper inserter 8 and the folding roller 4. The positioning component 6 includes a fixing block 10 and a paper clamping block 11 that cooperate with each other. The paper clamping block 11 is mounted on a paper clamping mounting shaft 12, which is rotatably mounted on the folding roller 4. The paper clamping mounting shaft 12 is connected to a drive arm 13, which is equipped with a cam 14.

[0031] In this embodiment, two sets of paper strips are wound around the paper feeding assembly 1 and the paper cutting assembly 2. The paper feeding assembly 1 conveys the paper, and the paper cutting assembly 2 cuts the paper strips to form paper. The two sets of paper alternately arrive between the folding rollers 4. The paper inserter 8 contacts part of the paper and presses it between the fixing block 10 and the paper clamping block 11 to complete the folding. At the same time, the cam 14 drives the paper clamping mounting shaft 12 to rotate through the drive arm 13, causing the paper clamping block 11 to swing and press against the fixing block 10 to clamp the paper. The shift fork 7 pushes the paper off the discharge side of the folding roller 4 and keeps it in a folded state. The two sets of paper are folded alternately to form a double-layer effect. The paper stack also needs to be cut into specific paper sizes. The paper feeding assembly 1, the paper cutting assembly 2, the shift fork 7, and the cam 14 are all mature technologies. The paper inserter 8 extends out of the surface of the folding roller 4.

[0032] See appendix Figure 3The paper cutting assembly 2 includes an upper paper cutting roller 15 and a lower paper cutting roller 16 that cooperate with each other. The upper paper cutting roller 15 is provided with paper cutting blades 17 spaced apart in the circumferential direction. The paper cutting blades 17 extend out of the surface of the upper paper cutting roller 15. The lower paper cutting roller 16 is provided with paper cutting grooves 18 in the circumferential direction corresponding to the paper cutting blades 17. The lower paper cutting roller 16 is provided with a negative pressure chamber 19, which communicates with the paper cutting grooves 18. The transition assembly 20 includes a transition roller 21 and a guide plate 22. The two transition rollers 21 are rotatably arranged and cooperate with each other. A vertical paper guiding channel is formed between the guide plates 22. The two sets of paper cutting assemblies 2 are respectively arranged on both sides of the paper guiding channel. The paper guiding channel connects the transition roller 21 and the lower paper cutting roller 16. The lower paper cutting roller 16 and the transition roller 21 are both provided with grooves in the axial direction for the guide plate 22 to pass through. The number of paper inserting blades 8 is twice the number of paper cutting blades 17.

[0033] In this embodiment, the paper strip enters between the upper cutting roller 15 and the lower cutting roller 16. The paper cutter 17 presses the paper strip into the cutting groove 18 to cut it and form a new paper strip end. The old paper strip end forms paper. The cutting groove 18 adsorbs the paper strip end and pulls it. The paper falls along the paper guide channel. The guide plate 22 limits the degree of wrinkling of the paper due to air resistance. The distance between the paper cutting assembly 2 and the paper folding assembly 3 is large. The transition roller 21 provides both conveying force and flattens the paper. The negative pressure chamber 19 is connected to the air source, which is a mature technology. The number of paper inserters 8 is twice the number of paper cutters 17 because one set of paper folding assemblies 3 corresponds to two sets of paper cutting assemblies 2.

[0034] In other alternative implementations, the paper cutting groove 18 can be set on the folding roller 4, which has a relatively complex structure and reduces the installation space for the circumferential insertion component 5 and the positioning component 6.

[0035] See appendix Figure 4-5 The insertion assembly 5 further includes a rotating paper insertion mounting shaft 25, the paper insertion knife 8 is disposed on the paper insertion mounting shaft 25, the end of the paper insertion mounting shaft 25 is connected to a movable shaft 29 through the first elastic element 9, the movable shaft 29 is rotatably disposed on the folding roller 4, and a second elastic element 26 is provided between the paper clamping block 11 and the folding roller 4.

[0036] In this embodiment, the paper stack formed by the staggered folding of two sets of paper needs to be cut. The final paper drawer unit is defined as X, and the width of the paper strip is NX. The purpose is to cut after one fold, which is more efficient than folding multiple times after cutting. Therefore, multiple paper inserting blades 8 are provided on the paper inserting mounting shaft 25, and multiple paper clamping blocks 11 are provided on the paper clamping mounting shaft 12. The paper inserting blades 8 require little force to float. The first elastic element 9 can be set at the end of the paper inserting mounting shaft 25. A swing arm for connecting the first elastic element 9 is provided on the paper inserting mounting shaft 25. Each paper clamping block 11 needs sufficient force to maintain a stable state. Each paper clamping block 11 is equipped with a second elastic element 26, wherein the second elastic element 26 is always in a compressed state. A plane is designed on the movable shaft 29 for connecting the first elastic element 9. The drive arm 13 is connected to a bearing, which abuts against the cam 14. The axis of the bearing does not coincide with the axis of the paper clamping mounting shaft 12.

[0037] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.

Claims

1. An oil-resistant paper folding machine, comprising: Paper feed assembly (1); A paper cutting assembly (2) is connected to the paper feeding assembly (1) and located between the two sets of paper feeding assemblies (1); The origami assembly (3) is located below the paper cutting assembly (2). The origami assembly (3) includes two folding rollers (4) that cooperate with each other. The folding rollers (4) are alternately provided with an insertion assembly (5) and a positioning assembly (6) in the circumferential direction. The insertion assembly (5) cooperates with the positioning assembly (6). A fork (7) is provided on the discharge side of the folding assembly (3) and is used to press the material down. Its features are: The insertion assembly (5) includes a paper inserter (8), which is oscillatingly mounted on the folding roller (4). A first elastic element (9) is provided between the paper inserter (8) and the folding roller (4). The positioning assembly (6) includes a fixing block (10) and a paper clamping block (11) that cooperate with each other. The paper clamping block (11) is mounted on a paper clamping mounting shaft (12), which is rotatably mounted on the folding roller (4). The paper clamping mounting shaft (12) is connected to a drive arm (13), which is equipped with a cam (14).

2. The greaseproof paper folding machine as described in claim 1, characterized in that: The paper cutting assembly (2) includes an upper paper cutting roller (15) and a lower paper cutting roller (16) that cooperate with each other. The upper paper cutting roller (15) is provided with paper cutting blades (17) spaced apart in the circumferential direction. The paper cutting blades (17) extend out of the surface of the upper paper cutting roller (15). The lower paper cutting roller (16) is provided with a paper cutting groove (18) in the circumferential direction corresponding to the paper cutting blades (17). The lower paper cutting roller (16) is provided with a negative pressure chamber (19), which is connected to the paper cutting groove (18).

3. The greaseproof paper folding machine as described in claim 2, characterized in that: It also includes a transition assembly (20), which includes a transition roller (21) and a guide plate (22). The two transition rollers (21) are rotatably arranged and cooperate with each other. A vertical paper guide channel is formed between the guide plates (22). Two sets of paper cutting assemblies (2) are respectively arranged on both sides of the paper guide channel. The paper guide channel connects the transition roller (21) and the lower paper cutting roller (16). The lower paper cutting roller (16) and the transition roller (21) are both provided with grooves in the axial direction for the guide plate (22) to pass through. The number of paper inserters (8) is twice the number of paper cutters (17).

4. The greaseproof paper folding machine as described in claim 1, characterized in that: The insertion assembly (5) also includes a rotating paper insertion mounting shaft (25), the paper insertion knife (8) is disposed on the paper insertion mounting shaft (25), and the first elastic element (9) is provided between the end of the paper insertion mounting shaft (25) and the folding roller (4).

5. The greaseproof paper folding machine as described in claim 1, characterized in that: A second elastic element (26) is provided between the paper clamping block (11) and the folding roller (4).

6. The greaseproof paper folding machine as described in claim 1, characterized in that: The paper feed assembly (1) includes a traction roller (27) and a guide roller (28) that cooperate with each other.

7. The greaseproof paper folding machine as described in claim 4, characterized in that: The end of the paper insertion mounting shaft (25) is connected to a movable shaft (29) via the first elastic element (9), and the movable shaft (29) is rotatably mounted on the folding roller (4).

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