A paper cutting device for mechanical packaging

Abstract

The utility model relates to the technical field of packaging paper cutting, and discloses a packaging paper cutting device for mechanical packaging, including a hydraulic press, a driving motor, and a cutting blade installed at the output end of the driving motor, wherein the output end of the hydraulic press is fixedly connected with a fixing seat, the driving motor is fixedly connected with a side of the fixing seat away from the hydraulic press, the side of the fixing seat close to the output end of the driving motor is connected with a U-shaped connecting plate, the cutting blade is located in the U-shaped connecting plate, and the U-shaped connecting plate is located directly above the cutting blade, both ends of the U-shaped connecting plate are connected with a paper pressing mechanism, and the two paper pressing mechanisms are respectively located on both sides of the cutting blade. The packaging paper cutting device for mechanical packaging, by installing a U-shaped connecting plate on the driving motor, and sleeve the U-shaped connecting plate above the cutting blade, separates the paper pressing mechanism installed at the bottom of the U-shaped connecting plate from the cutting blade, thereby avoiding the paper pressing mechanism from causing obstruction to the cutting blade when cutting the packaging paper.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging paper cutting, in particular to a packaging paper cutting device for mechanical packaging. Background Art

[0002] Mechanical packaging paper cutting devices are equipment used in industrial production to automatically cut and process packaging materials (such as paper, plastic film, etc.); such devices are usually integrated into automated packaging production lines to improve packaging efficiency, reduce material waste and ensure cutting accuracy; packaging paper cutting is a key processing step in the packaging industry, involving cutting large rolls or sheets of packaging paper materials into small rolls or single sheets of the required size for further use in product packaging. This process is usually completed by specialized mechanical equipment - paper cutters or slitting machines.

[0003] For example, the patent with announcement number CN111055319B announces a packaging paper cutting device for packaging machinery and equipment. In the field of packaging paper cutting technology, when the cutting blade is rotating and cutting, the pressing plates on the left and right sides of the cutting blade press the packaging paper to be cut so that the packaging paper remains stable and does not shake during cutting, effectively improving the cutting accuracy. Long grooves are provided on the pressing plates on the left and right sides of the cutting blade. Push plates are connected with slide grooves in the long grooves. The push plates and the long grooves are connected together by springs. A cylindrical grinding block is fixedly installed on the left end of the spring. When the cutting blade is cut under the drive of the motor, the push plate and the grinding block are in full contact with the packaging paper due to the centrifugal force during rotation. During the rotating cutting process, the grinding block can remove burrs at the cutting position of the packaging paper. The support seat and the baffle are fixedly installed on the outside of the long groove to prevent the push plate and the grinding block from flying out when the cutting blade rotates.

[0004] However, the interception device in the above technology still has the following problems:

[0005] Although the wrapping paper can be pressed by the pressing plates on both sides of the cutting blade to maintain the stability of the wrapping paper during cutting, in actual use, since the diameters of the pressing plate and the cutting blade are fixed to each other, if the wrapping paper to be cut is thicker, when the pressing plate and the wrapping paper are in extrusion contact, the cutting blade may not be able to completely cut the wrapping paper; if the paper is thinner, the pressing plate may not have formed a pressing effect on the paper when the cutting blade completes cutting the paper. The cutting blade is restricted by the pressing plate and can only cut wrapping paper within a certain range of thickness, which has great limitations on use. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a packaging paper cutting device for mechanical packaging, which can form a better pressing effect on the cutting position of the packaging paper when cutting packaging papers of different thicknesses, thereby improving the cutting stability of the packaging paper.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a packaging paper cutting device for mechanical packaging, comprising a hydraulic press, a drive motor and a cutting blade installed at the output end of the drive motor, wherein the output end of the hydraulic press is fixedly connected to a fixing seat, the drive motor is fixedly connected to a side of the fixing seat away from the hydraulic press, a side of the fixing seat close to the output end of the drive motor is connected to a U-shaped connecting plate, the cutting blade is located in the U-shaped connecting plate, and the U-shaped connecting plate is located directly above the cutting blade, both ends of the U-shaped connecting plate are connected to paper pressing mechanisms, and the two paper pressing mechanisms are respectively located on both sides of the cutting blade.

[0008] Furthermore, the paper pressing mechanism includes a fixed plate, a squeezing plate and two squeezing springs, the fixed plate is fixedly connected to one end of the U-shaped connecting plate, the two squeezing springs are respectively connected to the two ends of the fixed plate on the side away from the U-shaped connecting plate, the two ends of the squeezing springs away from the fixed plate are respectively connected to the two ends of the squeezing plate, and the two squeezing springs are respectively located on both sides of the output shaft of the driving motor.

[0009] Furthermore, both ends of the extrusion plate close to the fixed plate are fixedly connected with reinforcing rods, and the other ends of the two reinforcing rods respectively penetrate the two extrusion springs and the two ends of the fixed plate, and are slidably connected with the fixed plate.

[0010] Furthermore, an anti-drop cap is connected to one end of the reinforcing rod away from the extrusion plate, and the anti-drop cap abuts against a side of the fixing plate away from the extrusion plate.

[0011] Furthermore, one end of the reinforcing rod close to the anti-drop cap is fixedly connected to an external thread block, and the anti-drop cap is provided with an internal thread hole on one side close to the reinforcing rod. The internal thread hole is threadedly connected to the external thread block, and the diameter of the external thread block is smaller than the diameter of the reinforcing rod.

[0012] Furthermore, a wheel groove is formed on one side of the extrusion plate away from the fixed plate, and a plurality of pressure rollers are connected in the wheel groove. The plurality of pressure rollers are rotatably connected to the inner wall of the wheel groove through a rotating shaft.

[0013] Furthermore, one side of the fixing seat close to the U-shaped connecting plate is fixedly connected to an L-shaped connecting plate, the other side of the L-shaped connecting plate is fixedly connected to the U-shaped connecting plate, and the inner right angle of the L-shaped connecting plate faces the hydraulic press.

[0014] Furthermore, both ends of the extrusion plate away from the fixed plate are designed as arcs.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] This packaging paper cutting device for mechanical packaging, by installing a U-shaped connecting plate on the driving motor, and sleeved the U-shaped connecting plate above the cutting blade, separates the paper pressing mechanism installed at the bottom of the U-shaped connecting plate from the cutting blade, thereby avoiding the paper pressing mechanism from hindering the cutting blade from cutting the packaging paper, and enables the cutting blade to perform the cutting operation more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance connection structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the connection structure of the paper pressing mechanism of the utility model;

[0020] Figure 4 Based on Figure 3 Exploded schematic diagram of the connection structure;

[0021] Figure 5 This is a schematic diagram of the connection structure of the extruded plate of the utility model at another angle;

[0022] Figure 6 Based on Figure 5 Exploded schematic diagram of the connection structure;

[0023] Figure 7 It is a schematic diagram of the connection structure of the anti-drop cap of the utility model.

[0024] In the figure: 1. hydraulic press; 2. driving motor; 3. cutting blade; 4. fixing seat; 5. U-shaped connecting plate; 6. fixing plate; 7. extrusion plate; 8. extrusion spring; 9. reinforcing rod; 10. anti-drop cap; 11. external thread block; 12. pressure roller; 13. L-shaped connecting plate; 101. internal thread hole; 701. wheel groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1 - Figure 7A packaging paper cutting device for mechanical packaging comprises a hydraulic press 1, a driving motor 2 and a cutting blade 3 installed at the output end of the driving motor 2, wherein the output end of the hydraulic press 1 is fixedly connected with a fixing seat 4, the driving motor 2 is fixedly connected to the side of the fixing seat 4 away from the hydraulic press 1, the side of the fixing seat 4 close to the output end of the driving motor 2 is connected with a U-shaped connecting plate 5, the cutting blade 3 is located in the U-shaped connecting plate 5, and the U-shaped connecting plate 5 is located directly above the cutting blade 3, both ends of the U-shaped connecting plate 5 are connected with paper pressing mechanisms, and the two paper pressing mechanisms are respectively located on both sides of the cutting blade 3.

[0027] like Figure 1 - Figure 7 As shown, the packaging paper cutting device for mechanical packaging in the utility model is similar in structure to the existing packaging paper cutting device for mechanical packaging, such as the packaging paper cutting device for packaging machinery disclosed in the patent with announcement number CN111055319B. The main improvement of the utility model is to avoid the obstruction of the cutting operation of the cutting blade 3 by the pressing paper board, such as Figures 1 to 7 As shown, when the packaging paper cutting device for mechanical packaging in the utility model is in use, when the cutting edge of the cutting blade 3 cuts into the packaging paper, the paper pressing mechanisms at both ends of the U-shaped connecting plate 5 respectively press the packaging paper on both sides of the cutting blade 3, so as to prevent the packaging paper from being loose and affecting the cutting operation. At the same time, the paper pressing mechanism is separated from the cutting blade 3, so that no matter the cutting blade 3 is cutting thinner packaging paper or thicker packaging paper, the paper pressing mechanism will not hinder the depth of the cutting blade 3 entering the packaging paper.

[0028] like Figure 1 - Figure 6 As shown, the paper pressing mechanism includes a fixed plate 6, a squeezing plate 7 and two squeezing springs 8. The fixed plate 6 is fixedly connected to one end of the U-shaped connecting plate 5. The two squeezing springs 8 are respectively connected to the two ends of the fixed plate 6 away from the U-shaped connecting plate 5. The ends of the two squeezing springs 8 away from the fixed plate 6 are respectively connected to the two ends of the squeezing plate 7. The two squeezing springs 8 are respectively located on both sides of the output shaft of the driving motor 2. When the mouth of the cutting blade 3 cuts the packaging paper, the fixed plates 6 on both sides squeeze the squeezing plate 7 downward through the squeezing springs 8, thereby squeezing the packaging paper downward to avoid wrinkles on the packaging paper during cutting, which affects the cutting operation. When cutting thicker packaging paper, the cutting edge depth of the cutting blade 3 entering the packaging paper will not be affected by the squeezing plate 7 and the squeezing springs 8, which facilitates the cutting blade 3 to cut packaging papers of different thicknesses.

[0029] like Figure 1 - Figure 4As shown, both ends of the extrusion plate 7 near the fixed plate 6 are fixedly connected with reinforcing rods 9, and the other ends of the two reinforcing rods 9 respectively penetrate the two extrusion springs 8 and the two ends of the fixed plate 6, and are slidably connected with the fixed plate 6. The reinforcing rods 9 can support the extrusion springs 8 to prevent the extrusion springs 8 from twisting when being squeezed, so that the position of the extrusion plate 7 below the fixed plate 6 is more stable. When the extrusion plate 7 is squeezed upward by the packaging paper, the reinforcing rods 9 move upward by sliding with the fixed plate 6, and the extrusion springs 8 are sleeved on the reinforcing rods 9 and squeezed, and at the same time, a reaction force is provided to the extrusion plate 7, thereby squeezing the packaging paper below.

[0030] like Figure 1 - Figure 7 As shown, the end of the reinforcing rod 9 away from the squeezing plate 7 is connected with an anti-dropping cap 10, and the anti-dropping cap 10 abuts against the side of the fixing plate 6 away from the squeezing plate 7. By connecting the anti-dropping cap 10 to the top of the reinforcing rod 9, it is possible to avoid the reinforcing rod 9 being disconnected from the fixing plate 6 when the squeezing spring 8 resets and drives the reinforcing rod 9 to move downward during the paper pressing operation, thereby improving the connection stability between the reinforcing rod 9 and the fixing plate 6.

[0031] like Figure 1 - Figure 7 As shown, the reinforcing rod 9 is fixedly connected with an external thread block 11 at one end close to the anti-drop cap 10, and an internal thread hole 101 is provided on one side of the anti-drop cap 10 close to the reinforcing rod 9. The internal thread hole 101 is threadedly connected with the external thread block 11, and the diameter of the external thread block 11 is smaller than the diameter of the reinforcing rod 9. Through the threaded connection between the external thread block 11 and the anti-drop cap 10, the extrusion plate 7 connected to the extrusion spring 8 and the reinforcing rod 9 can be removed from the fixing plate 6 by disassembling the anti-drop cap 10, so as to facilitate the replacement of the cutting blade 3 sandwiched in the middle.

[0032] like Figure 5 and Figure 6 As shown, a wheel groove 701 is formed on one side of the squeezing plate 7 away from the fixed plate 6, and a plurality of pressing rollers 12 are connected in the wheel groove 701, and the plurality of pressing rollers 12 are rotatably connected to the inner wall of the wheel groove 701 through a rotating shaft. When the cutting blade 3 performs a cutting operation on the packaging paper, the squeezing plate 7 squeezes the packaging paper, and at this time, the plurality of pressing rollers 12 in the wheel groove 701 can form a rolling effect with the packaging paper, thereby completing the squeezing effect on the packaging paper while reducing the friction between the packaging paper and the squeezing plate 7, so that the packaging paper can be easily moved when being cut.

[0033] like Figure 1 and Figure 2As shown, the fixing seat 4 is fixedly connected to an L-shaped connecting plate 13 on one side close to the U-shaped connecting plate 5, and the other side of the L-shaped connecting plate 13 is fixedly connected to the U-shaped connecting plate 5, and the inner right angle of the L-shaped connecting plate 13 faces the hydraulic press 1. Through the L-shaped connecting plate 13, when the hydraulic press 1 drives the driving motor 2 to move upward, the outer wall of the hydraulic press 1 will not collide with the L-shaped connecting plate 13.

[0034] like Figure 1 - Figure 7 As shown, both ends of the extrusion plate 7 away from the fixed plate 6 are designed as arcs. By designing arc surfaces at both ends of the bottom of the extrusion plate 7, the edge of the moving packaging paper can be prevented from being stuck at the end of the extrusion plate 7, making the movement of the packaging paper smoother.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A packaging paper cutting device for mechanical packaging, comprising a hydraulic press (1), a drive motor (2) and a cutting blade (3) mounted at the output end of the drive motor (2), characterized in that: The output end of the hydraulic press (1) is fixedly connected to a fixing seat (4), the drive motor (2) is fixedly connected to a side of the fixing seat (4) away from the hydraulic press (1), a side of the fixing seat (4) close to the output end of the drive motor (2) is connected to a U-shaped connecting plate (5), the cutting blade (3) is located in the U-shaped connecting plate (5), and the U-shaped connecting plate (5) is located directly above the cutting blade (3), and both ends of the U-shaped connecting plate (5) are connected to paper pressing mechanisms, and the two paper pressing mechanisms are respectively located on both sides of the cutting blade (3).

2. The packaging paper cutting device for mechanical packaging according to claim 1, characterized in that: The paper pressing mechanism comprises a fixed plate (6), a pressing plate (7) and two pressing springs (8); the fixed plate (6) is fixedly connected to one end of the U-shaped connecting plate (5); the two pressing springs (8) are respectively connected to two ends of the fixed plate (6) away from the U-shaped connecting plate (5); one end of the two pressing springs (8) away from the fixed plate (6) is respectively connected to two ends of the pressing plate (7); and the two pressing springs (8) are respectively located on two sides of the output shaft of the driving motor (2).

3. The packaging paper cutting device for mechanical packaging according to claim 2, characterized in that: Both ends of the extrusion plate (7) close to the fixed plate (6) are fixedly connected to reinforcing rods (9), and the other ends of the two reinforcing rods (9) respectively penetrate the two extrusion springs (8) and the two ends of the fixed plate (6), and are slidably connected to the fixed plate (6).

4. The packaging paper cutting device for mechanical packaging according to claim 3, characterized in that: An end of the reinforcing rod (9) away from the extrusion plate (7) is connected to an anti-drop cap (10), and the anti-drop cap (10) abuts against a side of the fixing plate (6) away from the extrusion plate (7).

5. The packaging paper cutting device for mechanical packaging according to claim 4, characterized in that: An end of the reinforcing rod (9) close to the anti-drop cap (10) is fixedly connected to an external thread block (11); an internal thread hole (101) is provided on one side of the anti-drop cap (10) close to the reinforcing rod (9); the internal thread hole (101) is threadedly connected to the external thread block (11); and the diameter of the external thread block (11) is smaller than the diameter of the reinforcing rod (9).

6. A packaging paper cutting device for mechanical packaging according to claim 2, 3, 4 or 5, characterized in that: A wheel groove (701) is provided on one side of the extrusion plate (7) away from the fixed plate (6), and a plurality of pressure rollers (12) are connected in the wheel groove (701). The plurality of pressure rollers (12) are rotatably connected to the inner wall of the wheel groove (701) via a rotating shaft.

7. A packaging paper cutting device for mechanical packaging according to claim 1, 2, 3, 4 or 5, characterized in that: An L-shaped connecting plate (13) is fixedly connected to one side of the fixing seat (4) close to the U-shaped connecting plate (5), and the other side of the L-shaped connecting plate (13) is fixedly connected to the U-shaped connecting plate (5), and the inner right angle of the L-shaped connecting plate (13) faces the hydraulic press (1).

8. A packaging paper cutting device for mechanical packaging according to claim 2, 3, 4 or 5, characterized in that: Both ends of the extrusion plate (7) on the side away from the fixed plate (6) are designed as arcs.

Images