Paperboard creasing device

Abstract

The utility model discloses a paperboard creasing device which comprises two side vertical plates, an upper top plate is fixedly installed between the top ends of the two side vertical plates, a creasing air cylinder is fixedly installed in the center of the upper surface of the upper top plate through a bolt, and the output end of the creasing air cylinder is movably connected with an air pressure rod in a telescopic mode. A lower connecting plate is fixedly installed at the bottom end of the air pressure rod, a plurality of side connecting columns are fixedly installed on the outer surfaces of the front end and the rear end of the lower connecting plate, a second-stage plate is fixedly installed between the bottom ends of the adjacent side connecting columns on the same side, and a plurality of pressing springs are fixedly installed on the lower surface of the second-stage plate and linearly distributed at equal intervals. According to the paperboard creasing device, the front side and the rear side of the creasing position of a paperboard can be effectively pressed through downward pressing of the pressing plate, the situation that the two sides of the paperboard tilt up in the creasing process is avoided, a certain paperboard fixing effect is achieved, the stability of the paperboard in the creasing process is effectively improved, and the creasing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard production, and particularly relates to a cardboard indentation device. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper interlayer and one or more layers of cardboard (linerboard) through bonding. This material has high mechanical strength and good buffering performance, and is widely used in packaging, logistics and other fields, providing an effective means for the transportation and protection of goods;

[0003] Corrugated cardboard is the main material for packaging cartons. Due to the characteristic that corrugated cardboard itself is difficult to bend, when the cut cardboard is bent into a carton, it is necessary to first press a crease on the cardboard through a creasing machine, and then the worker bends the cardboard along the crease to fold the cardboard into a carton;

[0004] When corrugated cardboard is creased, a creasing machine is required. When the traditional creasing machine is used, it cannot tightly fix the two sides of the creased part during creasing. Therefore, the two sides of the cardboard are prone to warping during creasing, affecting the creasing quality. For this reason, the utility model proposes a cardboard creasing device that tightly presses the two sides of the cardboard during creasing to prevent warping. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cardboard creasing device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A cardboard creasing device includes side vertical plates. There are two side vertical plates in total, and the two side vertical plates are arranged oppositely. An upper top plate is fixedly installed between the tops of the two side vertical plates. A creasing cylinder is fixedly installed at the center position of the upper surface of the upper top plate through bolts. The output end of the creasing cylinder is telescopically connected with a pneumatic rod. The bottom end of the pneumatic rod is fixedly installed with a lower connecting plate. A plurality of side connecting columns are fixedly installed on the outer surfaces of the front and rear ends of the lower connecting plate. The side connecting columns are designed in an "L" shape. A secondary plate is fixedly installed between the bottom ends of several adjacent side connecting columns on the same side. A plurality of compression springs are fixedly installed on the lower surface of the secondary plate. The plurality of compression springs are linearly distributed at equal intervals. A compression plate is fixedly installed between the bottom ends of the plurality of compression springs. The compression plate is made of silica gel material.

[0007] Preferably, side fixing plates are fixedly installed on the outer walls on both sides of the lower connecting plate, and a mounting member is fixedly installed between the two side fixing plates. The mounting member is a heat insulation plate made of heat insulation material.

[0008] Preferably, the mounting member is designed in an inverted "concave" structure, and an indentation metal plate is fixedly installed in the groove below the mounting member.

[0009] Preferably, a positive electrode connector is fixedly installed on one side of the back surface of the indentation metal plate, and a negative electrode connector is fixedly installed on the other side of the back surface of the indentation metal plate.

[0010] Preferably, guide holes are formed on the outer surface of the upper top plate and on both sides of the indentation cylinder.

[0011] Preferably, guide columns are fixedly installed on both sides of the upper surface of the lower connecting plate. The top ends of the guide columns penetrate through the guide holes of the upper top plate, and the guide columns are slidably connected to the upper top plate.

[0012] Preferably, limit members are fixedly installed at the top ends of the two guide columns, and the diameter of the limit members is larger than the diameter of the guide holes.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For the cardboard indentation device of the present utility model, the indentation metal plate provided can perform the power-on heating work of the positive and negative electrodes, so as to have the use effect of hot stamping indentation during actual processing. Through the hot stamping type indentation work, the quality and efficiency of the indentation can be effectively improved, and it has good practical applicability, ensuring the normal indentation processing of the present utility model and having good use performance.

[0015] At the same time, before the indentation metal plate indents, the pressing plate can first contact the cardboard. Thus, through the downward pressing of the pressing plate, the two sides before and after the indentation of the cardboard can be effectively pressed, preventing the two sides of the cardboard from warping during indentation, having a certain cardboard fixing effect, effectively improving the stability during cardboard indentation, improving the indentation quality, and the pressing plate is made of silica gel material, so as to have the use effect of flexible contact, improving the contact pressing use effect, preventing the cardboard from having secondary indentation due to the action of the pressing plate, and improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front three-dimensional structural schematic diagram of the indentation device according to an embodiment of the present utility model;

[0017] Figure 2 is a back three-dimensional schematic diagram of the indentation device according to an embodiment of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the lower connecting plate assembly according to an embodiment of the present utility model;

[0019] Figure 4 is a bottom upward view structural schematic diagram of the lower connecting plate according to an embodiment of the present utility model.

[0020] In the figure: 1. Side vertical plate; 2. Upper top plate; 3. Indentation cylinder; 4. Pneumatic rod; 5. Lower connecting plate; 6. Side fixing plate; 7. Mounting piece; 8. Indentation metal plate; 9. Positive terminal; 10. Negative terminal; 11. Side connecting column; 12. Secondary plate; 13. Compression spring; 14. Compression plate; 15. Guide post; 16. Limiting piece. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] Please refer to Figures 1-4 , an embodiment provided by the present invention: A cardboard indentation device includes a side vertical plate 1. There are two side vertical plates 1 in total, and the two side vertical plates 1 are arranged opposite to each other. An upper top plate 2 is fixedly installed between the tops of the two side vertical plates 1. A indentation cylinder 3 is fixedly installed at the center position of the upper surface of the upper top plate 2 through bolts. The output end of the indentation cylinder 3 is telescopically movably connected to a pneumatic rod 4. The bottom end of the pneumatic rod 4 is fixedly installed with a lower connecting plate 5. Side fixing plates 6 are fixedly installed on the outer walls on both sides of the lower connecting plate 5. A mounting piece 7 is fixedly installed between the two side fixing plates 6. The mounting piece 7 is a heat-insulating plate made of heat-insulating material;

[0025] Further, in order to ensure normal cardboard indentation work, the mounting member 7 is designed with an inverted "concave" structure, and an indentation metal plate 8 is fixedly installed in the groove below the mounting member 7;

[0026] Among them, in order to improve the indentation quality and efficiency, a positive electrode connector 9 is fixedly installed on one side of the back of the indentation metal plate 8, and a negative electrode connector 10 is fixedly installed on the other side of the back of the indentation metal plate 8;

[0027] With this structural design, during actual use, the positive electrode connector 9 and the negative electrode connector 10 can be electrically connected, so as to heat the indentation metal plate 8 through the electrification effect. During indentation, the indentation cylinder 3 can be used to drive the air pressure rod 4 to extend. When the air pressure rod 4 extends, it will drive the lower connecting plate 5 at the bottom end to descend. When the lower connecting plate 5 descends, it will synchronously drive the indentation metal plate 8 at the bottom end to descend, so that the indentation metal plate 8 can perform hot stamping indentation on the cardboard below. Through the hot stamping indentation work, the indentation quality and efficiency can be effectively improved, with good use effects, ensuring the normal indentation processing of the present utility model.

[0028] In this embodiment, in order to press the front and rear sides of the cardboard indentation, prevent the two sides from warping, and improve the indentation quality, a number of side connecting columns 11 are fixedly installed on the outer surfaces of the front and rear ends of the lower connecting plate 5. The side connecting columns 11 are designed with an "L" shape. A secondary plate 12 is fixedly installed between the bottom ends of several adjacent side connecting columns 11 on the same side. A number of pressing springs 13 are fixedly installed on the lower surface of the secondary plate 12. The several pressing springs 13 are linearly distributed at equal intervals. A pressing plate 14 is fixedly installed between the bottom ends of the several pressing springs 13. The pressing plate 14 is made of silica gel material;

[0029] According to the above structure description, when the indentation cylinder 3 drives the air pressure rod 4 to extend, the lower connecting plate 5 can synchronously drive the pressing plates 14 on both sides to descend. When the air pressure rod 4 continues to extend, the pressing plate 14 first contacts the cardboard, so that the front and rear sides of the cardboard indentation can be effectively pressed by the downward pressure of the pressing plate 14, preventing the two sides of the cardboard from warping during indentation;

[0030] Since the pressing plate 14 is made of silica gel material, it can have the use effect of flexible contact, improve the contact pressing effect, and prevent the cardboard from having secondary indentation due to the action of the pressing plate 14;

[0031] After the pressing plate 14 presses down and contacts the cardboard, at this time the air pressure rod 4 continues to extend. During the process of the air pressure rod 4 continuing to extend, the indentation metal plate 8 contacts the cardboard to complete the hot stamping indentation work. During this process, the pressing plate 14 will slightly compress the pressing springs 8 above, so that the pressing springs 8 can improve the downward pressure buffering effect during hot stamping indentation, with a certain downward pressure protection characteristic and better practicability.

[0032] In this embodiment, guide holes are provided on the outer surface of the upper top plate 2 and on both sides of the indentation cylinder 3. In order to provide a certain displacement guide for the up and down movement of the indentation, so as to improve the accuracy of the indentation, guide holes are provided on the outer surface of the upper top plate 2 and on both sides of the indentation cylinder 3;

[0033] Furthermore, guide posts 15 are fixedly mounted on both sides of the upper surface of the lower connecting plate 5, the top ends of the guide posts 15 pass through the guide holes of the upper top plate 2, and the guide posts 15 are slidably connected to the upper top plate 2;

[0034] In order to prevent the guide posts 15 from falling out of the guide holes, the top ends of the two guide posts 15 are fixedly mounted with limit members 16 , and the diameter of the limit members 16 is greater than the diameter of the guide holes.

[0035] Working principle: When the corrugated cardboard needs to be indented, the positive terminal 9 and the negative terminal 10 can be connected to electricity first, so as to heat the indentation metal plate 8 through the electricity connection. After reaching the specified temperature, the staff will place the cardboard to be indented under the indentation metal plate 8;

[0036] At this time, the indentation cylinder 3 can be used to work, and the indentation cylinder 3 can drive the pneumatic rod 4 to extend. When the pneumatic rod 4 is extended, it will drive the lower connecting plate 5 at the bottom to descend. The lower connecting plate 5 can simultaneously drive the pressing plates 14 on both sides to descend. When the pneumatic rod 4 is continuously extended, the pressing plate 14 first contacts the cardboard, so that the pressing plate 14 can effectively press the front and rear sides of the cardboard at the indentation to avoid the cardboard from warping up on both sides during indentation. At the same time, the pressing plate 14 is made of silicone material to have a flexible contact effect, thereby improving the contact and pressing effect and avoiding the synchronous indentation of the cardboard.

[0037] After the pressing plate 14 is pressed down to contact the cardboard, the gas pressure rod 4 continues to extend, and in the process of the gas pressure rod 4 continuing to extend, the indentation metal plate 8 contacts the cardboard and continues to press down, so that the heated indentation metal plate 8 can perform hot stamping and indentation processing on the cardboard below. The hot stamping work can effectively improve the quality and efficiency of the indentation, has a good use effect, and ensures the normal indentation processing of the utility model;

[0038] At the same time, during the pressing process of the indenting metal plate 8, the clamping plate 14 will slightly compress the clamping spring 8 above, so that the clamping spring 8 can improve the downward pressure buffering effect during hot stamping, and has certain downward pressure protection characteristics, better practicality, and easy use.

[0039] In summary, for the cardboard indentation device of the present utility model, the indentation metal plate 8 is provided to perform the power-on heating work of the positive and negative electrodes, so as to have the use effect of hot stamping indentation during actual processing. The indentation quality and efficiency can be effectively improved through the hot stamping type indentation work, which has good practical applicability, ensures the normal indentation processing of the present utility model, and has excellent use performance;

[0040] Meanwhile, before the indentation metal plate 8 performs indentation, the pressing plate 14 can first contact the cardboard. Thus, through the downward pressing of the pressing plate 14, the two sides before and after the indentation of the cardboard can be effectively pressed, preventing the two sides of the cardboard from warping during indentation, having a certain cardboard fixing effect, effectively improving the stability during cardboard indentation, improving the indentation quality. Moreover, the pressing plate 14 is made of silica gel material, so as to have the use effect of flexible contact, improve the contact pressing use effect, prevent the cardboard from having secondary indentation due to the action of the pressing plate 14, and improve the processing quality.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A cardboard indentation device, comprising a side vertical plate (1), characterized in that, There are two side vertical plates (1) in total. The two side vertical plates (1) are arranged oppositely. An upper top plate (2) is fixedly installed between the tops of the two side vertical plates (1). A indentation cylinder (3) is fixedly installed at the center position of the upper surface of the upper top plate (2) by bolts. The output end of the indentation cylinder (3) is telescopically and movably connected to a pneumatic rod (4). The bottom end of the pneumatic rod (4) is fixedly installed with a lower connecting plate (5). A number of side connecting columns (11) are fixedly installed on the outer surfaces of the front and rear ends of the lower connecting plate (5). The side connecting columns (11) are designed in an "L" shape. A secondary plate (12) is fixedly installed between the bottom ends of several adjacent side connecting columns (11) on the same side. A number of pressing springs (13) are fixedly installed on the lower surface of the secondary plate (12). The several pressing springs (13) are linearly distributed at equal intervals. A pressing plate (14) is fixedly installed between the bottom ends of the several pressing springs (13). The pressing plate (14) is made of silica gel material.

2. The cardboard indentation device according to claim 1, wherein: Side fixing plates (6) are fixedly installed on both outer walls of the lower connecting plate (5). An installation member (7) is fixedly installed between the two side fixing plates (6). The installation member (7) is a heat insulation plate made of heat insulation material.

3. The cardboard indentation device according to claim 2, characterized in that: The installation member (7) is designed in an inverted "concave" shape. An indentation metal plate (8) is fixedly installed in the groove below the installation member (7).

4. A cardboard indentation device according to claim 3, characterized in that: A positive electrode connector (9) is fixedly installed on one side of the back surface of the indentation metal plate (8), and a negative electrode connector (10) is fixedly installed on the other side of the back surface of the indentation metal plate (8).

5. A cardboard indentation device according to claim 1, characterized in that: Guide holes are provided on the outer surface of the upper top plate (2) and on both sides of the indentation cylinder (3).

6. The cardboard indentation device according to claim 1, characterized in that: Guide columns (15) are fixedly installed on both sides of the upper surface of the lower connecting plate (5). The top ends of the guide columns (15) penetrate through the guide holes of the upper top plate (2), and the guide columns (15) are slidably connected to the upper top plate (2).

7. A cardboard indentation device according to claim 6, characterized in that: Limit members (16) are fixedly installed at the top ends of the two guide columns (15). The diameter of the limit members (16) is larger than the diameter of the guide holes.

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