CN214448875U - Under cut formula circle is pressed circle cross cutting workstation - Google Patents

Abstract

The utility model provides an undercut formula circle cross cutting workstation is pressed to circle. The workstation comprises cross cutting frame, cross cutting upper shaft part, cross cutting lower shaft part, waste discharge upper shaft part, waste discharge lower shaft part and clear useless shovel part. The die cutting frame is designed into double grooves and is respectively provided with a die cutting upper shaft component, a die cutting lower shaft component and a waste discharging upper shaft component. The die cutting shaft is a shaft with a cutting edge, the die cutting upper shaft is an optical axis, and the cutting edge of the die cutting shaft is die-cut from bottom to top from the lower surface of a product passing through the upper shaft and the lower shaft during working, so that the die cutting action is completed. After the die cutting action of the product is finished by the die cutting upper and lower shafts, the product continuously enters the waste discharge mechanism forward to be subjected to waste discharge treatment. In order to accord with the die cutting of this structure and the action requirement of wasting discharge, the utility model discloses a cutting edge width sets up at 0.06 ~ 0.08mm within range, and the cutting edge angle has designed into 45 single angle.

Description

Under cut formula circle is pressed circle cross cutting workstation

The technical field is as follows:

the structure is applied to the range of post-printing circular die cutting equipment of milk packaging products.

Background art:

the existing pressing-cutting type circular pressing circular die cutting tools in the cigarette packet industry in the market adopt an upcut mode, namely, an upper shaft is provided with a cutter blade, a lower shaft is an optical axis, waste cleaning puncture needles are distributed on the lower shaft, and puncture needle holes are formed in the corresponding positions of the upper shaft and used for accommodating the puncture needles to penetrate through paper and then enter the positions of the upper shaft. The structure is suitable for white cardboard products of cigarette packet products, and the paper is a single white cardboard and is easy to cut. Now, the press-cutting type round-pressing die-cutting tool is applied to the milk bag industry, mainly to the range of products of roof bags and Kangmei bags. Because the paper of the two milk bag products is formed by hot pressing a plurality of layers of different materials through a compound machine by using a binding agent and then die cutting is carried out. Different packing materials have different layers, except the adhesive layer, some are four layers, some are five layers, and the requirement is higher, six layers and seven layers can be realized. Taking the general five layers as an example, the top layer PE 1, the paperboard 2, the middle PE 3, the aluminum foil 4 and the bottom layer PE are respectively arranged from outside to inside. In this case our press-cut knife would need to cut all of the layers to cut the web into the package in its unfolded shape. The working principle of the press-cutting type cutter is that paper is cut through as much as possible on the premise that the cutting edge is not in contact with the optical axis surface, the distance between the cutting edge and the optical axis surface is controlled to be 0.004-0.008mm in general, and the remaining uncut thickness can be automatically separated during subsequent collection. In the production process, the paper passes through the die cutting station with the printing face facing upwards, and if the upper cutting type is adopted, the cutter firstly cuts the top layer PE and then cuts the paper board, the middle PE, the aluminum foil and the bottom layer PE respectively. And the lowermost PE film is about 150% thicker than the uppermost layer. Through the production feedback of a plurality of producers in the practical application process, under this kind of cross cutting mode, new cutter does not have the problem, will produce the adhesion phenomenon when new cutter wearing and tearing reach the certain degree, and wire drawing phenomenon can appear in bottom PE membrane, and the printing color on top layer also can be extruded on the paper section in addition. These phenomena may cause the milk products to be polluted in the packaging process or cause the packaging box to be not tightly packaged and enter air when being pasted, thereby causing quality accidents. These phenomena are absolutely forbidden. The new cutter has micro abrasion in a short time, the wire drawing phenomenon can be temporarily relieved by reducing the clearance when the wire drawing phenomenon appears due to abrasion twice at present, but the cutter is abraded more quickly by reducing the clearance more frequently, and finally the cutter needs to be returned to a factory for re-polishing the cutter edge. The cost is very high if repeated coping is required. After the customer feeds back the problem, we carefully analyze the problem on the spot, and after doing detailed understanding to the paper we propose the utility model discloses: and the lower cutting type round-pressing round-die-cutting workstation.

The invention content is as follows:

in order to be applied to roof package and well beautiful package packing trade with circle cross cutting workstation to improve the product quality and the production efficiency of this type of product, improve the life of cutter simultaneously, the utility model provides a from up cross cutting's circle cross cutting workstation down. The blade is placed on the lower shaft, the upper shaft is an optical axis, and the blade is cut upwards from the non-printing surface of the product, so that the cutting sequence of the blade to penetrate through the product during die cutting is that the blade penetrates through the bottom PE film firstly, and then penetrates through the aluminum foil, the middle PE film, the paperboard and the top PE film respectively. In this way, the cutting edge is in direct contact with the non-printing surface, so that the printing color is not pressed onto the cross section. Furthermore, we cut the bottom PE film, the aluminum foil and the middle PE film, and then the cardboard and the top PE film. The abrasion of the cutter is very slight abrasion, the bottom layer PE film cannot be influenced after the undercut mode is adopted, and the top layer PE film is very thin, so that the wire drawing phenomenon cannot be generated. After the lower cutting type is adopted, the lower shaft is fully distributed with the cutting edges, the original waste discharging shovel cannot be used for foundation, otherwise the cutting edges can be damaged, and therefore the original waste discharging mode in the unit cannot be used continuously. Therefore, the waste discharge function is moved out of the die cutting shaft, and an independent structure is adopted to be placed behind the die cutting for waste discharge. The waste materials are discharged after die cutting, so that the waste materials cannot be almost completely cut through by a gap of 0.004-0.008mm as an upper cutting type when die cutting is carried out, and the finished products and the waste materials are easy to shift when the die cutting is carried forward, so that the subsequent waste discharge is inaccurate. The die cutting gap is slightly enlarged to be about 0.02m, so that the finished product and the waste are conveyed forwards in a fixed position in a non-connected state, and the waste is discharged by the waste discharge part when reaching the waste discharge part, so that the finished product is separated from the waste. Thereby solving the waste discharge problem caused by changing into a down-cut mode. In the process, the gap between the blade and the lower shaft is enlarged for facilitating subsequent waste discharge, so that the actual die cutting width requirement of the blade is reduced, and the width of the blade is reduced to 0.06-0.08mm from 0.03-0.05mm required by an up-cutting mode. After the requirement on the width of the blade is reduced, the processing difficulty of the blade is correspondingly reduced, so that the composite angle of 40 degrees and 50 degrees of the original blade is simplified into a single angle of 45 degrees, the processing efficiency of the blade and the strength of the blade are improved, and the service life of the blade is prolonged. The application of the press-cutting type circular press circular die-cutting workstation in the production of roof bags and Kangmei bags is realized. As the die cutting clearance is enlarged, the abrasion of the cutter is correspondingly reduced, thereby prolonging the service life of the cutter.

The utility model provides a technical scheme that its technical problem adopted is: and a lower shaft is made into a shaft with a cutting edge by adopting a down-cutting type die cutting mode, an upper shaft is made into an optical axis, the cutting edge is subjected to upward die cutting from a non-printing surface, the bottom layer PE film, the aluminum foil and the middle PE film are cut off, and then the paperboard and the top layer PE film are subjected to die cutting. By adopting the mode that waste can not be discharged from the interior of the die cutting shaft after the downward cutting mode is adopted, an external independent waste discharge mechanism is designed to solve the waste discharge problem. After the waste discharge is adopted, the gap between the cutting edge and the upper shaft is increased due to the requirement of the waste discharge process, so that the actual die cutting width requirement of the cutting edge is reduced, and at the moment, the width of the cutting edge is reduced to 0.06-0.08mm from 0.03-0.05mm required by an up-cutting type. After the requirement on the width of the blade is reduced, the processing difficulty of the blade is correspondingly reduced, so that the composite angle of 40 degrees and 50 degrees of the original blade is simplified into a single angle of 45 degrees. By simplifying the angle and the width of the blade edge, the processing efficiency and the strength of the blade edge are improved, and the service life of the blade edge is prolonged. Thereby solving the problems of the press cutting type round pressing in the actual production of the roof bag and the Kangmei bag of the milk packaging product and leading the round pressing round die cutting to be better applied.

The utility model has the advantages that: the problems that the bottom layer PE film wire drawing phenomenon and the upper layer printing color are retained on the section of the cutting edge cutting position due to cutter abrasion when the upper cutting type circular die cutting is carried out in the production of the roof bag and the Kangmei bag of the milk packaging product are solved. Meanwhile, the downward cutting type adopts external independent waste discharge, so that the die cutting gap is enlarged, the width of the blade is widened, the angle of the blade is simplified, the abrasion speed is reduced, and the service life of the cutter is prolonged.

Description of the drawings:

the invention is further illustrated by the following figures and examples:

fig. 1 is a cross-sectional view of the present invention viewed from the operation side to the online side.

Fig. 2 is a schematic diagram of an up-cut die-cut.

Fig. 3 is a schematic view of an undercut die cut.

FIG. 4 is a comparison of the up-cut and down-cut blade cross-sectional views.

In the drawing 1, a work station frame 2, a die cutting upper shaft sliding block component 3, a die cutting upper shaft (optical axis) 4, a die cutting gap adjusting block 5, a paper feeding supporting plate 6, a die cutting lower shaft (with a knife blade shaft) 7, a die cutting lower shaft sliding block component 8, a lower cushion block 9, a waste cleaning upper shaft sliding block component 10, a waste cleaning upper shaft 11, a waste cleaning gap adjusting block 12, a paper outlet frame 13, a middle paper supporting plate 14, a waste cleaning lower shaft 15, a waste cleaning lower shaft sliding block component 16, a waste cleaning lower cushion block 17 and a waste cleaning shovel component are arranged in sequence

Figure 2 shows the sequence of cutting the layers by the die blade as the product is cut using the up-cut die-cut. As can be seen from the figure, the knife edge cuts off the top PE with printing color first, and then sequentially cuts off the paper board, the middle PE, the aluminum foil and the bottom PE. The PE at the bottom layer is not completely cut off, and the phenomenon of wire drawing can occur after the cutter is abraded to a certain degree. In this case, it is necessary to repeatedly reduce the gap between the blade and the lower shaft, which leads to an increase in the wear of the cutter, and also to a wire drawing phenomenon even if the gap is reduced after the wear reaches a certain level. Meanwhile, because the cutting edge is the printing surface which is contacted firstly, the printing color is easily impressed on the die cutting fault, and the quality is unqualified.

The sequence of cutting the layers of the product after the undercut is used is shown in figure 3. As can be seen from the figure, the cutting edge is upwards die-cut from the bottom layer PE in sequence, and the bottom layer PE and the aluminum foil are cut off firstly, so that the phenomenon of bottom layer PE film drawing caused by cutter abrasion is avoided. Also, since the die cutting is performed from the non-printed layer upward, the phenomenon that the printing color is imprinted on the die-cut section is not generated.

Shown in fig. 4 are cross-sectional views of the up-cut and down-cut blades. The upper cutting type is a composite cutting edge with two angles, and the width of the cutting edge of the blade point is narrow. The cutting edge of the undercutting type has only one angle, is convenient to process, has wider width of the cutting edge of the blade, is convenient to process and control, and simultaneously increases the abrasion resistance of the cutting edge.

The angle of the undercut edge in fig. 4 is 45 degrees and the width of the edge is 0.06-0.08 mm.

The upper cutting type is a composite cutting edge with two angles, and the width of the cutting edge is 0.03-0.05 mm. The angle of the composite blade divided into two sections from top to bottom and close to the blade is 50 degrees, and the angle far away from the blade is 40 degrees

The specific implementation mode is as follows:

the lower cushion block 8 is placed at the bottom of the left side sliding groove of the workstation rack 1, and the die-cutting lower shaft 6 and the die-cutting lower shaft sliding block component 7 are assembled and then placed into the left side sliding groove of the workstation rack 1 and fall on the lower cushion block 8. The die cutting gap adjusting block 4 is placed on the upper surface of the die cutting lower shaft sliding block component 7. After the die-cutting upper shaft 3 and the die-cutting upper shaft sliding block component 2 are assembled, the die-cutting upper shaft and the die-cutting upper shaft sliding block component are placed in a left sliding groove of a working station rack 1 and fall on a die-cutting clearance adjusting block 4, and the clearance between the die-cutting blade of the lower shaft and the surface of an upper shaft smooth roller is controlled by the die-cutting clearance adjusting block 4. The waste cleaning lower cushion block 16 is arranged on the bottom surface of the right chute of the workstation frame 1. The waste removing lower shaft 14 and the waste removing lower shaft sliding block component 15 are assembled and then placed into a right sliding groove of the workstation rack 1, and the bottom surface of the sliding block is in contact with a waste removing lower cushion block. And the waste cleaning upper shaft 10 and the waste cleaning upper shaft sliding block component 9 are assembled and then placed into a right sliding groove of the workstation rack 1. A waste cleaning gap adjusting block 11 is arranged between the waste cleaning lower sliding block part 15 and the waste cleaning upper sliding block part 9 and used for controlling the gap between the waste cleaning upper shaft and the waste cleaning lower shaft. At the lower right of the lower waste removing shaft 14 is a waste removing shovel member 17 fixed to a wall panel of the machine frame by screws. For removing waste material. The paper feeding supporting plate 5 is fixed on a left middle beam of the workstation frame 1 through screws, and the middle paper supporting plate 13 is fixed on the middle beam of the frame. The paper outlet frame 12 is fixed on the right middle beam of the workstation frame 1. The paper feed supporting plate 5, the middle paper supporting plate 13 and the paper output frame 12 are used for supporting products to pass through the workstation to complete the die cutting action.

In fig. 1, when the paper is conveyed from the left, the paper is in a state where the printed surface faces upward and the surface contacting the milk product faces downward. The paper firstly enters the space between the upper die cutting shaft and the lower die cutting shaft on the left side of the workstation for die cutting treatment. The shaft body of the die-cutting upper shaft is a smooth surface subjected to hardening treatment. The shaft body of the lower shaft of the die is provided with a cutter block carved with a cutter line, and the cutter block is fixed in a cutter block groove formed in the shaft body by using a screw. The knife lines on all the knife blocks are connected to form the die-cutting external dimension of a product. The surface clearance between the blade and the shaft body of the upper shaft is adjusted to be about 0.02mm, and when paper passes through the space between the upper shaft and the lower shaft, the paper is cut into a required product shape from bottom to top by the blade. At the moment, the finished product and the waste are not completely separated, and the finished product and the waste simultaneously keep a fixed position and move rightwards to enter the waste discharging upper shaft and the waste discharging lower shaft. The waste discharging upper shaft is provided with a needle pricking hole processed according to the waste material arrangement position, the waste discharging lower shaft is provided with a needle pricking according to the waste material arrangement position, the waste material is pricked through the needle pricking and pulled down from the product through rotation of the shaft body, and the paper outlet frame is provided with an empty groove in the corresponding waste material position, so that waste material separation is facilitated. The waste material breaks away from the pricking pin when the waste material shovel passes through after the pricking pin pulls the waste material off the product, and the waste discharge action is completed. The waste-removed product continues to move to the right along the exit tray into a subsequent station. Thus completing the undercut die cutting action.

Claims (2)

1. The utility model provides an undercut formula circle-on-circle cross cutting workstation which characterized in that:

the lower cushion block is placed at the bottom of a left side chute of the workstation rack, and the die-cutting lower shaft sliding block component are assembled and then placed in the left side chute of the workstation rack and fall on the lower cushion block; the die cutting gap adjusting block is placed on the die cutting lower shaft sliding block component; after being assembled, the die-cutting upper shaft and the die-cutting upper shaft sliding block component are placed in a left sliding chute of a work station rack and fall on a die-cutting clearance adjusting block, and a waste-removing lower cushion block is placed on the bottom surface of a right sliding chute of the work station rack; the waste cleaning lower shaft and the waste cleaning lower shaft sliding block component are assembled and then placed into a right sliding chute of a workstation rack, so that the bottom surface of the sliding block is contacted with a waste cleaning lower cushion block; assembling the waste cleaning upper shaft and the waste cleaning upper shaft sliding block component and then placing the assembled waste cleaning upper shaft and the waste cleaning upper shaft sliding block component into a right sliding chute of a rack of the workstation; a waste cleaning gap adjusting block is arranged between the waste cleaning lower sliding block component and the waste cleaning upper sliding block component; a waste cleaning shovel component is arranged at the right lower part of the waste cleaning lower shaft and is fixed on a wallboard of the frame by screws, a paper feeding supporting plate is fixed on a left middle cross beam of the frame of the workstation by screws, and a middle paper supporting plate is fixed on a middle cross beam of the frame; the paper outlet frame is fixed on the right middle cross beam of the workstation frame.

2. An undercut round to round die cutting station as claimed in claim 1, characterized in that:

the lower shaft is fully provided with blades, and the width of each blade is 0.06-0.08 mm; the angle of the cutting edge is 45 deg..

Images