Indentation device for electric appliance packaging color box paper folding machine

Abstract

The utility model discloses an indentation device for an electric appliance packaging color box paper folding machine, and relates to the technical field of electric appliance packaging. The device comprises a working table, an indentation assembly is arranged in the center of the top of the working table, and flattening assemblies are arranged on the two sides of the top of the working table; the creasing assembly comprises first mounting columns fixedly connected to the front end and the rear end of the center of the top of the workbench correspondingly, and a first lifting plate is movably connected between every two adjacent first mounting columns. The adjusting rod and the tool apron are driven to rotate through the mounting frame and the rack, so that the creasing tool is driven to rotate, the mounting direction of the creasing tool is adjusted, the problem that creasing work in multiple directions is inconvenient in the prior art is solved, meanwhile, the two ends of paper are adsorbed through the vacuum suction cups, and the creasing efficiency is improved. And a second mounting column and a vacuum suction cup are driven by a two-way lead screw to move back to back in the transverse direction, so that the paper is stretched, and the problem that in the prior art, the paper is inconveniently prevented from being in a wrinkled state during indentation is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric appliance packaging, especially, relate to a mark device for electric appliance packaging color box folding machine. BACKGROUND

[0002] The folding machine is a kind of machine for folding paper, and is one of commonly used equipment in electric appliance packaging, and the folding machine is mainly composed of conveying device, mark device, folding device, control system and the like, wherein the mark device is used to press the crease on paperboard, to facilitate folding of paper, and effectively reduce the possibility of paper tearing or damage.

[0003] The document with the existing announcement number CN216426151U discloses a mark device for folding machine, which comprises two groups of main side plates and two groups of auxiliary side plates, a main conveying belt and an auxiliary conveying belt are installed between the two groups of main side plates and the two groups of auxiliary side plates through shaft rods, a groove wheel is installed on one side of the two groups of main side plates through a shaft rod, and a driving motor is arranged on one side of the two groups of main side plates.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The mark device has two groups of working grooves, a cross beam is arranged between the two groups of working grooves, two groups of threaded rods are fixedly arranged on one side of the cross beam, a pressing die plate is installed on one end of the two groups of threaded rods, and the paper is pressed by the pressing die plate, but the installation direction of the pressing die plate is fixed, so that the pressing can only be performed in one direction, and it is not convenient to perform pressing in different directions according to requirements, and the practicability is poor.

[0006] 2. The mark device drives the paper to be transported by the main conveying belt and the auxiliary conveying belt, and the paper is pressed by the pressing die plate, but the paper cannot be guaranteed to be in a flat state when being pressed, so that the pressing is not accurate due to the wrinkles of the paper.

[0007] Therefore, the mark device for electric appliance packaging color box folding machine is provided to solve the above problems. UTILITY MODEL CONTENTS

[0008] The utility model aims at providing a mark device for electric appliance packaging color box folding machine, which drives the adjusting rod and the knife seat to rotate through the installation frame and the rack, so as to drive the pressing knife to rotate, realizes the adjustment of the installation direction of the pressing knife, solves the problem that the existing mark device is not convenient for pressing in multiple directions, simultaneously, the two ends of the paper are adsorbed by the vacuum chuck, and the second mounting column and the vacuum chuck are driven to move in opposite directions in the transverse direction by the bidirectional screw rod, realizes the stretching of the paper, and solves the problem that the existing mark device cannot avoid the wrinkles of the paper when pressing.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model is a creasing device for an electrical appliance packaging color box folding machine, including a worktable, a creasing component is provided at the top center of the worktable, and flattening components are provided on both sides of the top of the worktable.

[0011] The indentation assembly includes first mounting columns fixedly connected to the front and rear ends of the center of the top of the worktable, first lifting plates movably connected between adjacent first mounting columns, a movable plate movably connected to the upper surface of the first lifting plate, an adjusting rod rotatably passing through the center of the surface of the movable plate, a gear fixed to the top of the adjusting rod, a connecting plate fixedly connected to the bottom of the adjusting rod, a tool holder fixedly connected to the lower surface of the connecting plate, an indentation tool fixedly connected inside the tool holder, a mounting frame movably connected to the upper surface of the movable plate, a rack fixedly connected to the rear end of the inner part of the mounting frame, and the rack meshing behind the gear.

[0012] The leveling assembly includes a bidirectional lead screw that is rotatably connected to the front and rear ends of the worktable. Both sides of the outer wall of the bidirectional lead screw are threaded with sliders. The top of each slider is fixedly connected to an L-shaped frame. The vertical support arm of the L-shaped frame is fixedly connected to a second mounting column. A second lifting plate is movably connected between adjacent second mounting columns. A connecting pipe runs through the surface of the second lifting plate, and a vacuum suction cup is fixedly connected to the bottom end of the connecting pipe.

[0013] A further feature of this invention is that: a first hydraulic cylinder is fixedly connected to the top of each of the first mounting columns; the output shafts of the first hydraulic cylinders extend to the inner side of the slide groove of the first mounting column and are fixedly connected to a first lifting block; the front and rear end faces of the first lifting plate are respectively fixedly connected to the close end faces of the first lifting blocks; and the moving plate is movably connected to the upper surface of the first lifting plate via a one-way screw.

[0014] The present invention is further configured such that: a U-shaped frame is fixedly connected to each of the mutually distant end faces of the first lifting block; a first drive motor is fixedly connected to each of the two outer walls of the front U-shaped frame via a first motor frame; a first mounting seat is fixedly connected to each of the two outer walls of the rear U-shaped frame; the front end of the one-way screw is fixedly connected to the output shaft of the first drive motor; the rear end of the one-way screw is rotatably connected to the first mounting seat; and both ends of the moving plate are threadedly connected to the outer wall of the one-way screw.

[0015] A further feature of this invention is that electromagnets are fixedly connected to both sides of the lower surface of the movable plate, and iron plates are fixedly connected to the front and rear ends of the top of the knife holder.

[0016] The utility model discloses a further setting for: the top end gap cooperation of indentation cutter is in the inside of tool holder, and the outer wall of indentation cutter in the inside of tool holder is penetrated with a plurality of fixed rods, and the both ends of fixed rod extend to the outside of tool holder and are threadedly connected with fastening nuts, and fastening nuts are respectively pasted on the both sides outer wall of tool holder.

[0017] The utility model discloses a further setting for: the upper surface one side of moving plate is fixedly connected with second hydraulic cylinder through L type seat, and the output shaft of second hydraulic cylinder is fixedly connected on the one side outer wall of mounting frame, and the upper surface other side of moving plate is fixedly connected with fixed plate, and the outer wall of fixed plate is penetrated with slide rod, and one end of slide rod is fixedly connected on the other side outer wall of mounting frame, and the other end of slide rod is threadedly connected with limiting nut.

[0018] The utility model discloses a further setting for: the one side of work table front -back end surface is fixedly connected with second drive motor through second motor frame, and the other side of work table front -back end surface is fixedly connected with second mounting seat, and one end of two -way screw rod is fixedly connected with the output shaft of second drive motor, and the other end of two -way screw rod is rotatably connected on second mounting seat.

[0019] The utility model discloses a further setting for: the top of second mounting column is fixedly connected with third hydraulic cylinder, and the output shaft of third hydraulic cylinder all extends to the inside of the sliding groove on second mounting column end face and is fixedly connected with second lifting block, and the front -back end face of second lifting plate is respectively fixedly connected on the end face of second lifting block and is close to each other.

[0020] The utility model has the advantages of:

[0021] 1, the utility model discloses a further setting for: the one side of work table front -back end surface is fixedly connected with second drive motor through second motor frame, and the other side of work table front -back end surface is fixedly connected with second mounting seat, and one end of two -way screw rod is fixedly connected with the output shaft of second drive motor, and the other end of two -way screw rod is rotatably connected on second mounting seat.

[0022] 2, the utility model discloses a further setting for: the one side of work table front -back end surface is fixedly connected with second drive motor through second motor frame, and the other side of work table front -back end surface is fixedly connected with second mounting seat, and one end of two -way screw rod is fixedly connected with the output shaft of second drive motor, and the other end of two -way screw rod is rotatably connected on second mounting seat.

[0023] Of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned above simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the indentation assembly of the present application.

[0027] Figure 3 It is a schematic diagram of the installation of the first lifting plate, the one-way screw rod and the moving plate of the present application.

[0028] Figure 4 It is a structure exploded view of the adjusting rod, the tool holder and the indentation cutter of the present application.

[0029] Figure 5 It is a schematic diagram of the installation of the mounting frame and the rack of the present application.

[0030] Figure 6 It is a schematic diagram of the structure of the flattening assembly of the present application.

[0031] Figure 7 It is a structure exploded view of the second lifting plate and the vacuum chuck of the present application.

[0032] In the drawings, the component list represented by each reference numeral is as follows:

[0033] 1-workbench, 2-indentation assembly, 201-first mounting column, 202-first lifting plate, 202a-first hydraulic cylinder, 202b-first lifting block, 202c-U-shaped frame, 203-moving plate, 203a-electromagnet, 204-one-way screw, 204a-first motor frame, 204b-first drive motor, 204c-first mounting seat, 205-adjusting rod, 205a-gear, 205b-connection plate, 206-tool holder, 206a-fixed rod, 206b-fastening nut, 206c-iron sheet, 207-indentation tool, 208-mounting frame, 208a-L-shaped seat, 208b-second hydraulic cylinder, 208c-fixed plate, 208d-sliding rod, 208e-limiting nut, 209-rack, 3-flattening assembly, 301-bidirectional screw, 301a-sliding block, 301b-second motor frame, 301c-second drive motor, 301d-second mounting seat, 302-L-shaped frame, 303-second mounting column, 304-second lifting plate, 304a-third hydraulic cylinder, 304b-second lifting block, 305-vacuum chuck, 305a-connection pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] Embodiment 1

[0036] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , which is the first embodiment of the utility model, and the embodiment provides an indentation device for an electric appliance packaging color box paper folding machine, which comprises a workbench 1, the top center of the workbench 1 is provided with an indentation assembly 2, the indentation assembly 2 comprises a first mounting column 201, a first lifting plate 202, a moving plate 203, an adjusting rod 205, a tool holder 206, an indentation tool 207, a mounting frame 208 and a rack 209, the adjusting rod 205 and the tool holder 206 are driven to rotate through the mounting frame 208 and the rack 209, so that the indentation tool 207 is driven to rotate, the installation direction of the indentation tool 207 is adjusted, and the problem that the existing indentation work is not convenient in multiple directions is solved.

[0037] Specifically, the first mounting column 201 is provided with two front and rear ends fixedly connected to the top center of the workbench 1, and the first mounting column 201 is movably connected with the first lifting plate 202 between the adjacent first mounting columns 201. The upper surface of the first lifting plate 202 is movably connected with the moving plate 203, the surface center of the moving plate 203 is rotatably penetrated by the adjusting rod 205, the top end of the adjusting rod 205 is fixedly connected with the gear 205a, the bottom end of the adjusting rod 205 is fixedly connected with the connecting plate 205b, the lower surface of the connecting plate 205b is fixedly connected with the tool holder 206, the inside of the tool holder 206 is fixedly connected with the indentation cutter 207, the upper surface of the moving plate 203 is movably connected with the mounting frame 208, the inside rear end of the mounting frame 208 is fixedly connected with the rack 209, the rack 209 is engaged behind the gear 205a, the first mounting column 201 is arranged to mount the first lifting plate 202 and other structures, the first lifting plate 202 is arranged to drive the indentation cutter 207 to lift, the moving plate 203 is arranged to drive the indentation cutter 207 to move longitudinally, the adjusting rod 205 is arranged to drive the indentation cutter 207 to rotate, the gear 205a is arranged to drive the adjusting rod 205 to rotate, the connecting plate 205b is arranged to connect the adjusting rod 205 and the tool holder 206, the tool holder 206 is arranged to mount the indentation cutter 207, the indentation cutter 207 is arranged to indent the paper, the mounting frame 208 is arranged to drive the rack 209 to move, and the rack 209 is arranged to drive the gear 205a to rotate.

[0038] Further, the top end of the first mounting column 201 is fixedly connected with the first hydraulic cylinder 202a, the output shaft of the first hydraulic cylinder 202a extends to the inside of the sliding groove of the first mounting column 201 and is fixedly connected with the first lifting block 202b, the front and rear end faces of the first lifting plate 202 are fixedly connected to the end faces of the first lifting block 202b that are close to each other, and the moving plate 203 is movably connected to the upper surface of the first lifting plate 202 through the one-way screw rod 204.

[0039] The mutually far end faces of the first lifting block 202b are fixedly connected with the U-shaped brackets 202c, the two side outer walls of the U-shaped bracket 202c located in front are fixedly connected with the first driving motor 204b through the first motor bracket 204a, the two side outer walls of the U-shaped bracket 202c located at the rear are fixedly connected with the first mounting seat 204c, the front end of the one-way screw rod 204 is fixedly connected with the output shaft of the first driving motor 204b, the rear end of the one-way screw rod 204 is rotatably connected to the first mounting seat 204c, and the two ends of the moving plate 203 are threadedly connected to the outer wall of the one-way screw rod 204.

[0040] The lower surface of the moving plate 203 is fixedly connected with the electromagnet 203a, and the top front and rear ends of the tool holder 206 are fixedly connected with the iron sheet 206c.

[0041] The top end of the indentation cutter 207 is in gap fit in the inside of the cutter seat 206, a plurality of fixing rods 206a are penetrated through the outer wall of the cutter seat 206 inside which the indentation cutter 207 is located, the two ends of the fixing rods 206a extend to the outside of the cutter seat 206 and are threadedly connected with fastening nuts 206b which are respectively attached to the two side outer walls of the cutter seat 206;

[0042] The upper surface one side of the moving plate 203 is fixedly connected with a second hydraulic cylinder 208b through an L-shaped seat 208a, the output shaft of the second hydraulic cylinder 208b is fixedly connected on the one side outer wall of a mounting frame 208, the upper surface other side of the moving plate 203 is fixedly connected with a fixed plate 208c, the outer wall front and rear ends of the fixed plate 208c are penetrated through with slide rods 208d, one end of the slide rods 208d is fixedly connected on the other side outer wall of the mounting frame 208, the other end of the slide rods 208d is threadedly connected with limit nuts 208e.

[0043] The operation process of the embodiment is as follows: starting the second hydraulic cylinder 208b, the output shaft of the second hydraulic cylinder 208b drives the mounting frame 208 and the rack 209 to move horizontally, the rack 209 drives the adjusting rod 205 and the cutter seat 206 to rotate through the gear 205a, so that the cutter seat 206 drives the indentation cutter 207 to rotate, realizing the adjustment of the installation direction of the indentation cutter 207, when the indentation cutter 207 is perpendicular to the first lifting plate 202, the second hydraulic cylinder 208b is closed, and the electromagnet 203a is started, the cutter seat 206 and the indentation cutter 207 are fixed through the mutual adsorption between the electromagnet 203a and the iron sheet 206c, at the same time, the first driving motor 204b is started, the output shaft of the first driving motor 204b drives the moving plate 203 and the indentation cutter 207 to move longitudinally through the one-way screw rod 204, finally, the first hydraulic cylinder 202a is started, the first hydraulic cylinder 202a drives the indentation cutter 207 to lift through the first lifting plate 202, realizing the indentation of the paper.

[0044] Embodiment 2

[0045] Please refer to Figure 1 , Figure 6 and Figure 7 , which are the second embodiment of the utility model, which is based on the previous embodiment, but is different from the previous embodiment: the top two sides of the workbench 1 are provided with a flattening assembly 3, the flattening assembly 3 comprises a bidirectional screw rod 301, an L-shaped frame 302, a second mounting column 303, a second lifting plate 304 and a vacuum chuck 305, the two ends of the paper are adsorbed through the vacuum chuck 305, and the second mounting column 303 and the vacuum chuck 305 are driven to move horizontally in opposite directions through the bidirectional screw rod 301, realizing the stretching of the paper, solving the problem that the paper is in a wrinkled state when indentation is not convenient to avoid.

[0046] Specifically, the bidirectional screw rod 301 is provided with two and is respectively rotationally connected at the front and rear ends of the workbench 1, the outer wall of the bidirectional screw rod 301 is threadedly connected with the sliding blocks 301a on both sides, the top of the sliding block 301a is fixedly connected with the L-shaped frame 302, the vertical branch of the L-shaped frame 302 is fixedly connected with the second mounting column 303, the second mounting column 303 between the front and rear adjacent is movably connected with the second lifting plate 304, the surface of the second lifting plate 304 penetrates the connecting pipe 305a, the bottom end of the connecting pipe 305a is fixedly connected with the vacuum chuck 305.

[0047] Further, one side of the front and rear end faces of the workbench 1 is fixedly connected with the second driving motor 301c through the second motor bracket 301b, the other side of the front and rear end faces of the workbench 1 is fixedly connected with the second mounting seat 301d, one end of the bidirectional screw rod 301 is fixedly connected with the output shaft of the second driving motor 301c, the other end of the bidirectional screw rod 301 is rotationally connected on the second mounting seat 301d.

[0048] The top of the second mounting column 303 is fixedly connected with the third hydraulic cylinder 304a, the output shaft of the third hydraulic cylinder 304a extends to the inside of the sliding groove on the end face of the second mounting column 303 and is fixedly connected with the second lifting block 304b, the front and rear end faces of the second lifting plate 304 are fixedly connected on the end faces of the second lifting block 304b which are close to each other.

[0049] The remaining structure is the same as that of Embodiment 1.

[0050] The operation process of the embodiment is as follows: start the third hydraulic cylinder 304a, the output shaft of the third hydraulic cylinder 304a drives the vacuum chuck 305 to ascend and descend through the second lifting plate 304, and the vacuum chuck 305 is externally connected with the vacuum pump through the connecting pipe 305a, so that the vacuum chuck 305 is adsorbed on the paper, then start the second driving motor 301c, the output shaft of the second driving motor 301c drives the second mounting column 303 to move in the transverse direction through the bidirectional screw rod 301 and the sliding block 301a, the second mounting column 303 stretches the two ends of the paper through the vacuum chuck 305, so that the paper is in a flat state.

[0051] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description 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.

[0052] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model.

Claims

1. A creasing device for an electrical appliance packaging carton paper folding machine, comprising a worktable (1), characterized in that: The top center of the workbench (1) is provided with an indentation assembly (2), and the top of the workbench (1) is provided with a flattening assembly (3) on both sides. The indentation assembly (2) comprises first mounting columns (201) fixedly connected to the front and rear ends of the top center of the workbench (1), respectively, and first lifting plates (202) movably connected between the first mounting columns (201) adjacent to each other, the upper surface of the first lifting plate (202) movably connected with a moving plate (203), the surface center of the moving plate (203) rotatably penetrating an adjusting rod (205), the top end of the adjusting rod (205) fixedly connected with a gear (205a), and the bottom end of the adjusting rod (205) fixedly connected with a connecting plate (205b), the lower surface of the connecting plate (205b) fixedly connected with a tool holder (206), and the inside of the tool holder (206) fixedly connected with an indentation tool (207), the upper surface of the moving plate (203) movably connected with a mounting frame (208), and the inside of the mounting frame (208) fixedly connected with a rack (209) at the rear end, and the rack (209) engaged behind the gear (205a). The flattening assembly (3) comprises bidirectional lead screws (301) rotatably connected to the front and rear ends of the workbench (1), respectively, and the outer walls of the bidirectional lead screws (301) are both threadedly connected with sliding blocks (301a), the top of the sliding block (301a) is fixedly connected with an L-shaped bracket (302), and the vertical supporting arm of the L-shaped bracket (302) is fixedly connected with a second mounting column (303), the second mounting columns (303) adjacent to each other in front and back are movably connected with a second lifting plate (304), and the surface of the second lifting plate (304) penetrates a connecting pipe (305a), and the bottom end of the connecting pipe (305a) is fixedly connected with a vacuum chuck (305).

2. The creasing device for a folding machine of a color box of an electric appliance according to claim 1, wherein The top end of the first mounting column (201) is fixedly connected with a first hydraulic cylinder (202a), and the output shaft of the first hydraulic cylinder (202a) extends to the inside of the sliding slot of the first mounting column (201) and is fixedly connected with a first lifting block (202b), the front and rear ends of the first lifting plate (202) are fixedly connected to the end faces of the first lifting block (202b) close to each other, and the moving plate (203) is movably connected to the upper surface of the first lifting plate (202) through a unidirectional lead screw (204).

3. The creasing device for a folding machine of a color box of an electric appliance according to claim 2, wherein The end faces of the first lifting block (202b) away from each other are both fixedly connected with a U-shaped bracket (202c), the outer walls of the U-shaped brackets (202c) on the front are both fixedly connected with a first drive motor (204b) through a first motor bracket (204a), the outer walls of the U-shaped brackets (202c) on the rear are both fixedly connected with a first mounting seat (204c), the front end of the unidirectional lead screw (204) is fixedly connected with the output shaft of the first drive motor (204b), the rear end of the unidirectional lead screw (204) is rotatably connected to the first mounting seat (204c), and the two ends of the moving plate (203) are both threadedly connected to the outer wall of the unidirectional lead screw (204).

4. The creasing device for folding paper of an electric appliance packing color box according to claim 1, wherein The lower surface of the moving plate (203) is fixedly connected with an electromagnet (203a) on both sides, and the top of the tool holder (206) is fixedly connected with an iron sheet (206c) on the front and rear ends.

5. The creasing device for folding paper of an electric appliance packing color box folding machine according to claim 1, wherein The top end of the indentation cutter (207) is clearance fit in the inside of the tool holder (206), and a plurality of fixing rods (206a) are penetrated through the outer wall of the tool holder (206) where the indentation cutter (207) is located, the both ends of the fixing rods (206a) extend to the outside of the tool holder (206) and are threadedly connected with fastening nuts (206b), and the fastening nuts (206b) are respectively attached to the outer walls on both sides of the tool holder (206).

6. The creasing device for folding paper of an electric appliance packing color box according to claim 1, wherein The upper surface of the moving plate (203) is fixedly connected with a second hydraulic cylinder (208b) on one side through an L-shaped seat (208a), and the output shaft of the second hydraulic cylinder (208b) is fixedly connected to the outer wall on one side of the mounting frame (208), the upper surface of the moving plate (203) is fixedly connected with a fixed plate (208c) on the other side, and the outer wall of the fixed plate (208c) is penetrated through with a slide rod (208d) on the front and rear ends, one end of the slide rod (208d) is fixedly connected to the outer wall on the other side of the mounting frame (208), and the other end of the slide rod (208d) is threadedly connected with a limiting nut (208e).

7. The creasing device for folding paper of an electric appliance packing color box folding machine according to claim 1, wherein The front and rear end faces of the workbench (1) are fixedly connected with a second driving motor (301c) on one side through a second motor bracket (301b), and the front and rear end faces of the workbench (1) are fixedly connected with a second mounting seat (301d) on the other side, one end of the bidirectional screw rod (301) is fixedly connected with the output shaft of the second driving motor (301c), and the other end of the bidirectional screw rod (301) is rotatably connected to the second mounting seat (301d).

8. The creasing device for folding paper of an electric appliance packing color box according to claim 1, wherein The top end of the second mounting column (303) is fixedly connected with a third hydraulic cylinder (304a), and the output shaft of the third hydraulic cylinder (304a) extends into the sliding groove on the end face of the second mounting column (303) and is fixedly connected with a second lifting block (304b), and the front and rear end faces of the second lifting plate (304) are respectively fixedly connected to the end faces of the second lifting blocks (304b) which are close to each other.

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