Carton slotting and blanking mechanism

Abstract

The carton slotting and blanking mechanism includes a pair of slotting part brackets arranged vertically at intervals. An upper slotting shaft is provided between the slotting part brackets. A lower slotting shaft axially parallel to it is also provided below the upper slotting shaft. An upper slotting cutter disc coaxial with it is provided on the upper slotting shaft. A lower slotting cutter disc coaxial with it is provided on the lower slotting shaft. Slotting cutters are provided on the rim of the upper slotting cutter disc. Knife grooves cooperating with the slotting cutters are provided on the rim of the lower slotting cutter disc. A lower connecting bracket is also provided below the lower slotting shaft. A rotatable pulley is provided on the lower connecting bracket. A belt is stretched between the pulley and the lower slotting cutter disc. The belt is embedded in the knife grooves. The pulley and the lower slotting cutter disc form a belt drive structure. By using the separating force generated by the belt during transmission and consistent with the tangential direction of the lower slotting cutter disc, the waste materials in the knife grooves can be removed in time. Moreover, the belt and the lower slotting cutter disc rotate synchronously, which maximally avoids frictional damage and has a longer service life.

Description

Technical Field

[0001] The present invention relates to the field of carton machinery, specifically to a carton slotting and blanking mechanism. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated cartons, single-layer cardboard boxes, etc., with various specifications and models. A slotting machine is one of the main forming machines used in carton production, and is used to slot cardboard during the carton production process.

[0003] Most slotting machines use a slotted roller with a round - pressing - round structure for slotting. The waste cut from the cardboard will get stuck in the knife slots of the slotted roller. If the waste in the knife slots is not cleaned in time, it will increase the slotting resistance, increase the friction of the slotted roller, increase the load of the slotting machine, and in severe cases, it will burn out the motor driving the slotted roller.

[0004] In order to clean the waste of the slotting machine in time, the prior art mostly adopts a carton slotting machine disclosed in a Chinese invention application with the publication number CN108263030A. By setting a material - picking piece, the paper scraps can be picked out of the knife slots to ensure the normal progress of subsequent slotting work. Because the material - picking piece needs to always contact the bottom of the knife slots of the slotted roller, it will friction, generate heat, and even ignite the waste, and it wears out quickly, and the cutting knife needs to be replaced every once in a while.

[0005] In order to address the above deficiencies, the prior art also adopts a paper - picking device of a carton forming machine disclosed in a Chinese invention application with the publication number CN104325697A. Among them: it includes a fixed shaft, a paper - picking rod is connected in a matching way on the fixed shaft, and a paper - picking rod is connected in a matching way between the fixed shafts. The paper - picking rod includes an arc - shaped picking rod, and sleeves are arranged at both ends of the picking rod; the picking rod corresponds to and cooperates with the knife slots of the slotted roller, and the two sleeves are respectively sleeved on different fixed shafts. When slotting the cardboard, the waste enters the knife slots. Since the slotted roller rotates, the slotted roller drives the waste to rotate. And because the paper - picking rod is fixed, the waste is picked out under the action of the paper - picking rod. In the above technical solution, since the paper - picking rod is fixed, it still causes damage due to friction with the knife slots, and the replacement is relatively troublesome. Summary of the Invention

[0006] The present invention provides a carton slotting and blanking mechanism to make up for the deficiencies of the prior art, and its technical solution is as follows.

[0007] The carton slotting and blanking mechanism includes a pair of slotting part brackets arranged vertically at intervals. An upper slotting shaft is provided between the slotting part brackets. The two ends of the upper slotting shaft are respectively connected to the slotting part brackets through bearings. A lower slotting shaft axially parallel to it is also provided below the upper slotting shaft. The two ends of the lower slotting shaft are also respectively connected to the slotting part brackets through bearings. An upper slotting cutter disc coaxial with it is provided on the upper slotting shaft. A lower slotting cutter disc coaxial with it is provided on the lower slotting shaft. The upper slotting cutter disc and the lower slotting cutter disc form a circular press - circular mating structure. Slotting cutters are provided on the rim of the upper slotting cutter disc. Knife grooves mating with the slotting cutters are provided on the rim of the lower slotting cutter disc. A lower connecting bracket is also provided below the lower slotting shaft. A rotatable pulley is provided on the lower connecting bracket. The rotating shaft of the pulley is parallel to the lower slotting shaft. A belt is stretched between the pulley and the lower slotting cutter disc. The belt is embedded in the knife groove. The pulley and the lower slotting cutter disc form a belt drive structure through the belt.

[0008] Preferably, the belt is formed by elastic rubber.

[0009] Preferably, a support shaft parallel to the lower slotting shaft is provided on the lower connecting bracket. The pulley is rotatably connected to the support shaft through a bearing.

[0010] Preferably, the lower connecting bracket is arranged parallel to the lower slotting cutter disc. A semi - circular groove with a clearance fit with the lower slotting cutter disc is provided on the upper edge of the lower connecting bracket. The lower slotting cutter disc can just rotate in the semi - circular groove.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The pulley and the lower slotting cutter disc form a belt drive structure through the belt. By using the separating force generated in the belt during the transmission process, which is consistent with the tangential direction of the lower slotting cutter disc, the waste in the knife groove can be removed in time. Moreover, the belt and the lower slotting cutter disc rotate synchronously, which maximally avoids frictional damage and has a longer service life.

[0013] The present invention will be further described below in conjunction with the specification drawings and specific embodiments. Brief Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present invention.

[0015] Figure 2 is the schematic diagram of the working principle of the present invention. Specific Embodiments

[0016] Such as Figure 1 and Figure 2As shown in the figure, the carton slotting and blanking mechanism includes a pair of slotting part brackets 1 arranged vertically at intervals. An upper slotting shaft 2 is provided between the slotting part brackets 1. The two ends of the upper slotting shaft 2 are respectively connected to the slotting part brackets 1 through bearings. A lower slotting shaft 3 axially parallel to the upper slotting shaft 2 is also provided below the upper slotting shaft 2. The two ends of the lower slotting shaft 3 are also respectively connected to the slotting part brackets 1 through bearings. An upper slotting cutter disc 4 coaxial with the upper slotting shaft 2 is provided on the upper slotting shaft 2. A lower slotting cutter disc 5 coaxial with the lower slotting shaft 3 is provided on the lower slotting shaft 3. The upper slotting cutter disc 4 and the lower slotting cutter disc 5 form a circular pressure circular mating structure. A slotting cutter 41 is provided on the rim of the upper slotting cutter disc 4. A cutter groove 51 matching with the slotting cutter 41 is provided on the rim of the lower slotting cutter disc 5. A lower connecting bracket 6 is also provided below the lower slotting shaft 3. A rotatable pulley 7 is provided on the lower connecting bracket 6. The rotating shaft of the pulley 7 is parallel to the lower slotting shaft 3. A belt 8 is stretched between the pulley 7 and the lower slotting cutter disc 5. The belt 8 is embedded in the cutter groove 51. The pulley 7 and the lower slotting cutter disc 5 form a belt drive structure through the belt 8.

[0017] In the above technical solution, the pulley 7 and the lower slotting cutter disc 5 form a belt drive structure through the belt 8. The separation force generated by the belt 8 during the transmission process is tangential to the lower slotting cutter disc 5, so that the waste in the cutter groove 51 can be removed in time. Moreover, the belt 8 and the lower slotting cutter disc 5 rotate synchronously, which maximally avoids frictional damage.

[0018] Preferably, the belt 8 is formed by elastic rubber. The elastic belt 8 has an elastic repulsive force on the waste embedded in the cutter groove 51, which is beneficial to assisting the removal of waste from the cutter groove 51. At the same time, the belt 8 also has elastic tension, so it is beneficial to replace the belt 8.

[0019] Preferably, a support shaft 61 parallel to the lower slotting shaft 3 is provided on the lower connecting bracket 6. The pulley 7 is rotationally connected to the support shaft 61 through a bearing.

[0020] Preferably, the lower connecting bracket 6 is arranged parallel to the lower slotting cutter disc 5. A semi-circular groove 62 with a clearance fit with the lower slotting cutter disc 5 is provided on the upper edge of the lower connecting bracket 6. The lower slotting cutter disc 5 can just rotate in the semi-circular groove 62.

[0021] For those skilled in the art, various corresponding changes and deformations can be obtained according to the structure and principle disclosed in the present invention, and all these changes and deformations fall within the protection scope of the present invention.

Claims

1. Carton slotting and blanking mechanism, including a pair of slotting part brackets arranged vertically at intervals. An upper slotting shaft is arranged between the slotting part brackets. The two ends of the upper slotting shaft are respectively connected to the slotting part brackets through bearings. A lower slotting shaft axially parallel to it is also arranged below the upper slotting shaft. The two ends of the lower slotting shaft are also respectively connected to the slotting part brackets through bearings. An upper slotting cutter disc coaxial with it is arranged on the upper slotting shaft. A lower slotting cutter disc coaxial with it is arranged on the lower slotting shaft. The upper slotting cutter disc and the lower slotting cutter disc form a circular pressure circular mating structure. Slotting cutters are arranged on the rim of the upper slotting cutter disc. Knife grooves matching the slotting cutters are arranged on the rim of the lower slotting cutter disc. It is characterized in that: A lower connecting bracket is also arranged below the lower slotting shaft. A rotatable pulley is provided on the lower connecting bracket. The rotating shaft of the pulley is parallel to the lower slotting shaft. A belt is stretched between the pulley and the lower slotting cutter disc. The belt is embedded in the knife groove. The pulley and the lower slotting cutter disc form a belt drive structure through the belt. A separating force consistent with the tangential direction of the lower slotting cutter disc is generated during the transmission of the belt, so that the waste in the knife groove can be removed in time. A support shaft parallel to the lower slotting shaft is arranged on the lower connecting bracket. The pulley is rotationally connected to the support shaft through a bearing. The belt is formed by elastic rubber.

2. The carton slotting and blanking mechanism according to claim 1, It is characterized in that: The lower connecting bracket is arranged parallel to the lower slotting cutter disc. A semi-circular groove with a clearance fit with the lower slotting cutter disc is provided on the upper edge of the lower connecting bracket. The lower slotting cutter disc can just rotate in the semi-circular groove.

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