Cutting die and cutting device thereof

Abstract

The invention discloses a cutting die and a cutting device thereof, the cutting die comprises an upper die body, a lower die body and a positioning pin, and the upper die body and the lower die body are combined and connected into a whole through the positioning pin. The upper die body is provided with a first combination face and a feeding face, the upper die body is provided with a positioning through groove matched with raw materials, and the raw materials penetrate through the positioning through groove. The lower film body is provided with a second combination surface and a discharging surface, the lower film body is provided with a cutting through groove corresponding to the positioning through groove, the cutting through groove forms a blade at the edge of the second combination surface, and the raw material penetrates through the cutting through groove from the second combination surface to the discharging surface and is cut; discharging chutes are formed in the lower film body and located on the two sides of the cutting through groove. According to the cutting die and the cutting device thereof, the machining difficulty can be reduced, meanwhile, it is ensured that cutting waste is separated from the cutter in time, and therefore the cutting resistance is reduced, the machining cost is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting dies, in particular to a cutting die and a cutting device thereof. Background Art

[0002] like Figure 1 As shown, it is now necessary to process the strip-shaped raw material 20 and cut a groove of a certain depth. In the prior art, wire drawing or milling cutter processing is usually used to process strip-shaped raw materials. The wire drawing method is to stretch the excess material of the material strip, but the wire drawing feed rate is small. When the feed rate increases, the material is difficult to move and sometimes it will break. It is often necessary to use multiple small amounts to process it. This will lead to an increase in the number of processes, increased costs, poor quality control, and a waste of manpower and material resources. There is also a method of using a milling cutter to process directly on the raw material. This method requires the design of a special machine to ensure the processing shape, and it is also necessary to set up many auxiliary production jigs; and during the processing process, the cutting waste will accumulate at the cutting edge of the milling cutter, thereby increasing the cutting resistance.

[0003] To this end, how to design a cutting mold and its cutting device so that it can reduce the processing difficulty while ensuring the processing accuracy, while ensuring that the cutting waste is separated from the tool in time, thereby reducing the cutting resistance, slowing down the tool wear, so as to reduce the processing cost and improve the processing efficiency, is a technical problem that the staff in this field need to solve. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a cutting mold and a cutting device thereof, so that the machining difficulty can be reduced on the basis of ensuring machining accuracy, while ensuring that the cutting waste is separated from the tool in time, thereby reducing the cutting resistance, slowing down the tool wear, so as to reduce the machining cost and improve the machining efficiency.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A cutting die, comprising: an upper die body, a lower die body and a positioning pin, wherein the upper die body and the lower die body are connected to form a whole through the positioning pin;

[0007] The upper mold body is provided with a first bonding surface and a material feeding surface, and the upper mold body is provided with a positioning through groove matched with the raw material, and the raw material passes through the positioning through groove from the material feeding surface toward the first bonding surface;

[0008] The lower membrane body is provided with a second joint surface and a discharge surface, and the lower membrane body is provided with a cutting groove corresponding to the positioning groove, the cutting groove forms a blade at the edge of the second joint surface, and the raw material passes through the cutting groove from the second joint surface toward the discharge surface and is cut; the lower membrane body is provided with a discharge chute, the discharge chute is located on both sides of the cutting groove, and the ends of the discharge chute extend to the blade of the cutting groove.

[0009] In one of the embodiments, a receiving groove that is staggered with the positioning groove is provided on the feeding surface of the upper mold body, and a friction block is provided in the receiving groove. The friction block is located on both sides of the positioning groove; during processing, the friction block is pressed against the two side surfaces of the raw material, thereby rubbing the raw material passing through the positioning groove.

[0010] In one embodiment, a limiting ridge is provided on the first joint surface of the upper mold body, and a limiting groove cooperating with the limiting ridge is provided on the second joint surface of the lower mold body. When the upper mold body and the lower mold body are combined, the limiting ridge is embedded in the limiting groove.

[0011] In one embodiment, the upper mold body and the lower mold body are provided with pin holes, and the positioning pin is inserted into the pin holes.

[0012] A cutting device, comprising the above-mentioned cutting die, further comprising: a material belt driving module, a material feeding auxiliary module and a fixed base, wherein the material belt driving module is used to drive the raw material to move, the material feeding auxiliary module is used to help the raw material pass through the cutting die at the beginning, and the fixed base is used to install the cutting die; during processing, the raw material passes through the material feeding auxiliary module and the cutting die in sequence;

[0013] The feeding auxiliary module group includes an auxiliary mold and a pressure piece, the auxiliary mold includes a first half mold and a second half mold, and cutting grooves with blades are formed at the edges of both of them. The pressure piece is used to drive the first half mold and the second half mold to merge or separate; when the two are merged, the structure of the auxiliary mold is the same as that of the lower mold body, and the two cutting grooves are merged to form the cutting groove.

[0014] In one embodiment, a guide column is provided between the first half mold and the second half mold, and the first half mold and the second half mold are driven by the pressure member to approach or separate from each other along the guide column.

[0015] In one embodiment, the pressure member is a telescopic cylinder structure, the number of the pressure members is two, and the two pressure members drive the first half mold and the second half mold respectively.

[0016] In one of the embodiments, the feeding auxiliary module includes a guide wheel group, which is used to guide and limit the moving raw material, and the guide wheel group is arranged on both sides of the auxiliary mold; the guide wheel group includes a fixed plate and two rollers installed on the fixed plate, and the two rollers clamp the raw material.

[0017] In one of the embodiments, the material belt driving module includes an unwinder and a rewinder. After the raw material starts from the unwinder, it passes through the feeding auxiliary module and the cutting die in sequence and reaches the rewinder.

[0018] In summary, the cutting mold and cutting device of the present invention can reduce the processing difficulty while ensuring the processing accuracy, and at the same time ensure that the cutting waste is separated from the tool in time, thereby reducing the cutting resistance, slowing down the tool wear, so as to reduce the processing cost and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the state of the raw materials involved in the present invention before and after processing;

[0021] Figure 2 It is a schematic structural diagram of the cutting die of the present invention;

[0022] Figure 3 for Figure 2 An exploded schematic diagram of the cutting die shown;

[0023] Figure 4 for Figure 2 The schematic diagram of the structure of the upper mold body and the lower mold body shown;

[0024] Figure 5 A schematic diagram of the state of the raw material passing through the cutting die;

[0025] Figure 6 It is a schematic diagram of the state of the raw material passing through the lower mold body;

[0026] Figure 7 It is a schematic diagram of the partial structure of the cutting device of the present invention;

[0027] Figure 8 for Figure 7The structural schematic diagram of the auxiliary mold shown;

[0028] Fig. 9 This is a schematic diagram of the coordination between the two when assisting the mold in cutting raw materials. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The present invention provides a cutting die 100, which is intended to reduce the processing difficulty and processing cost of a raw material 20. Figure 2 As shown, the cutting mold 100 includes: an upper mold body 110, a lower mold body 120 and a positioning pin 130. The upper mold body 110 and the lower mold body 120 are connected to form a whole through the positioning pin 130.

[0033] Among them, Figure 3 As shown, the upper mold body 110 is provided with a first joint surface 111 and a material feeding surface 112, and the upper mold body 110 is provided with a positioning slot 113 that matches the raw material 20. During processing, the raw material 20 passes through the positioning slot 113 from the material feeding surface 112 toward the first joint surface 111.

[0034] like Figure 3 and Figure 4As shown, the lower film body 120 is provided with a second joint surface 121 and a discharge surface 122, and the lower film body 120 is provided with a cutting groove 123 corresponding to the positioning groove 113, and the cutting groove 123 forms a blade at the edge of the second joint surface 121. The raw material 20 passes through the cutting groove 123 from the second joint surface 121 toward the discharge surface 122 and is cut by the blade, that is, the raw material 20 will be cut by the blade when sliding through the cutting groove 123, thereby obtaining the desired finished product. The lower film body 120 is also provided with a discharge chute 124, which is located on both sides of the cutting groove 123, and the ends of the discharge chute 124 extend to the blade of the cutting groove 123, so as to discharge the waste generated by cutting.

[0035] The working principle of the cutting die 100 is as follows:

[0036] During processing, the upper mold body 110 and the lower mold body 120 are combined to form a whole, the first joint surface 111 is fitted with the second joint surface 121, and the positioning groove 113 is aligned with the cutting groove 123. The raw material 20 slides through the cutting mold 100 (such as Figure 5 Specifically, the raw material 20 passes through the positioning slot 113 and the cutting slot 123 in sequence. As the raw material 20 slides, the raw material 20 will be cut by the blade when passing through the blade (as shown in FIG. Figure 6 As shown in the figure, the waste material removed during the process will enter the discharge chute 124 on both sides under the action of inertia, and be discharged from the cutting die 100 along the inclined surface. After cutting, the raw material 20 becomes the desired finished product and is discharged from the cutting through groove 123, and finally the finished product can be rolled up.

[0037] It is worth noting that, as can be seen from the above, the cross section of the cutting groove 123 is the cross section of the finished product, and the cross section of the positioning groove 113 is the same as the cross section of the raw material 20. The positioning groove 113 mainly positions the raw material 20 to ensure that the raw material 20 can vertically enter the cutting groove 123, thereby ensuring the cutting quality.

[0038] Compared with the prior art, the cutting die 100 of the present invention has the advantages of reducing processing difficulty and processing cost, improving processing efficiency, reducing cutting resistance, slowing down tool wear, etc., as follows:

[0039] Compared with the traditional wire drawing processing method, since the wire drawing processing is to stretch the excess material of the material strip (raw material 20), the single feed amount is small. If the feed amount is increased blindly, it will easily lead to difficulty in moving the material and there is a risk of breaking. Therefore, it is necessary to adopt a strategy of multiple small amounts for processing, that is, to perform wire drawing on the material strip (raw material 20) multiple times. This results in low processing efficiency, and the surface of the finished product produced will have lines and burrs on its edges, and the product quality and precision are poor. After adopting the cutting method of the present invention, the raw material 20 can be processed and formed in one time, thereby greatly improving production efficiency;

[0040] Compared with the traditional milling cutter processing method, the milling cutter processing requires the use of a positioning fixture, which leads to a higher processing cost; and during the milling cutter processing, the cutting waste will accumulate at the cutting edge of the milling cutter, thereby increasing the cutting resistance, causing the tool to be damaged faster, and also increasing the production cost. After adopting the cutting method of the present invention, the positioning groove 113 of the upper mold body 110 realizes the positioning function of the fixture, thereby significantly reducing the cost of the fixture; at the same time, during the cutting process, since the raw material 20 is always subjected to tension and keeps sliding, the material itself has kinetic energy. When the raw material 20 is cut through the blade, the waste generated will be discharged from the cutting mold 100 along the discharge chute 124 under the action of inertia, thereby avoiding the problem of increased processing resistance caused by waste accumulation.

[0041] In this embodiment, the upper mold body 110 and the lower mold body 120 are provided with a pin hole 101 (such as Figure 3 and Figure 4 As shown in FIG. 1 , the positioning pin 130 is inserted into the pin hole 101. The positioning pin 130 plays a positioning role when the upper mold body 110 and the lower mold body 120 are combined to prevent the positioning slot 113 from being misaligned with the cutting slot 123 due to misalignment.

[0042] Preferably, Figure 4 As shown, a limiting ridge 114 is provided on the first joint surface 111 of the upper mold body 110, and a limiting groove 125 is provided on the second joint surface 121 of the lower mold body 120 to cooperate with the limiting ridge 114. When the upper mold body 110 and the lower mold body 120 are combined, the limiting ridge 114 is embedded in the limiting groove 125. The design of the limiting ridge 114 and the limiting groove 125 also plays a role in preventing misalignment, and the cooperation of the two can better prevent waste from splashing into the gap between the upper mold body 110 and the lower mold body 120 during cutting.

[0043] Further, in another embodiment, if Figure 3As shown, a receiving groove 115 interlaced with the positioning groove 113 is provided on the feeding surface 112 of the upper mold body 110, and a friction block 116 is provided in the receiving groove 115, and the friction block 116 is located on both sides of the positioning groove 113. When in use, the friction block 116 abuts against the two sides of the raw material 20, thereby rubbing the raw material 20 sliding through the positioning groove 113. After the friction of the friction block 116, the corresponding position of the raw material 20 generates heat and causes the local temperature to rise, so that the material in this area softens for subsequent cutting.

[0044] like Figure 7 As shown, the present invention also provides a cutting device 10, which includes the above-mentioned cutting die 100, and also includes: a material belt driving module (not shown), a feeding auxiliary module 200 and a fixed base 300. Among them, the material belt driving module is used to drive the raw material 20 to move, the feeding auxiliary module 200 is used to help the raw material 20 pass through the cutting die 100 at the beginning, and the fixed base 300 is used to install the cutting die 100. During processing, the raw material 20 passes through the feeding auxiliary module 200 and the cutting die 100 in sequence.

[0045] The material belt drive module includes an unwinder and a rewinder (not shown). When in use, the raw material 20 starts from the unwinder, passes through the feeding auxiliary module 200 and the cutting die 300 in sequence, and reaches the rewinder. The material belt drive module provides power for the movement of the raw material 20.

[0046] The feeding auxiliary module 200 is mainly used to solve the problem of how the raw material 20 passes through the cutting die 100 at the beginning. Figure 7 and Figure 8 As shown, the feeding auxiliary mold assembly 200 includes an auxiliary mold 210 and a pressure member 220. The auxiliary mold 210 includes a first half mold 211 and a second half mold 212. The edges of both molds form a cutting groove 213 with a blade. The pressure member 220 is used to drive the first half mold 211 and the second half mold 212 to merge or separate. When the two are merged, the structure of the auxiliary mold 210 is the same as that of the lower mold body 120, and the two cutting grooves 213 are merged to form a cutting through groove 123.

[0047] A guide post 214 (such as Figure 8 As shown in FIG. 2 , the first half mold 211 and the second half mold 212 are driven by the pressure member 220 to move closer to or away from each other along the guide column 214. Preferably, the pressure member 220 is a telescopic cylinder structure, and the number of the pressure members 220 is two, and the two pressure members 220 drive the first half mold 211 and the second half mold 212 respectively.

[0048] In addition to the cutting die 100 that can cut the raw material 20, the cutting device 10 of the present invention also has a feeding auxiliary module 200 that can solve the problem of how the raw material 20 passes through the cutting die 100 at the beginning. Since the cross-sectional area of ​​the cutting groove 123 is smaller than the cross-sectional area of ​​the raw material 20, the end of the raw material 20 cannot directly pass through the cutting groove 123 at the beginning, and the end of the raw material 20 needs to be partially cut first. The prior art can use a milling cutter to process the end of the raw material 20, and then pass the end through the cutting groove 123 after processing, and then use a driving device to apply a pulling force to the raw material 20, so that the raw material 20 can slide smoothly through the cutting groove 123, so as to smoothly carry out subsequent cutting processing. However, the steps of the milling cutter local processing method in the prior art are relatively cumbersome, and the operation is time-consuming and labor-intensive; for this reason, the feeding auxiliary module 200 is used in the present invention to solve the problem of how the end of the raw material 20 passes through the cutting groove 123.

[0049] The working principle of the feeding auxiliary module 200 is described below:

[0050] Initially, the first half mold 211 and the second half mold 212 are separated, and the end of the raw material 20 passes through the two, and the raw material 20 and the cut groove 213 are aligned with each other; then, the first half mold 211 and the second half mold 212 are brought closer together under the action of the pressure member 220, during which the driving device pulls the raw material 20 in the forward direction, and the end of the raw material 20 is clamped to form an extra section 21 (such as Fig. 9 As shown, the excess section 21 initially exceeds the area where the groove 213 is located. When the two grooves 213 are combined, a portion of the raw material 20 will be cut by the groove 213, thereby obtaining a finished product section 22 (as shown in FIG. Fig. 9 As shown). Then, the first half mold 211 and the second half mold 212 are separated again, and the staff cuts off the excess segment 21, and then inserts the finished segment 22 through the cutting mold 100. Since the cross-sectional area of ​​the finished segment 22 is the same as the cross-sectional area of ​​the cutting slot 123, the finished segment 22 at the end of the raw material 20 can smoothly pass through the cutting mold 100. Finally, the end of the raw material 20 is connected to the winding machine. As the winding machine operates, the remaining raw material 20 will continuously pass through the cutting mold 100 and then be cut and formed. In this way, the problem of how the end of the raw material 20 passes through the cutting slot 123 is solved.

[0051] Compared with the prior art, the threading method using the feeding auxiliary module 200 of the present invention is simpler and more convenient. It only requires the merging and separation of the first half mold 211 and the second half mold 212 to cut out a finished product section 22 that can pass through the cutting groove 123 in a part of the raw material 20, thereby solving the problem of how to initially thread.

[0052] It is worth emphasizing that when the first half mold 211 and the second half mold 212 are combined, the two cutting grooves 213 will form the same structure as the cutting groove 123, and the raw material 20 will also be cut into the required shape when passing through the cutting groove 213. However, the present invention does not directly use the auxiliary mold 210 for cutting, but adds a cutting mold 100 for cutting, which is mainly based on the following reasons: in the process of moving and cutting the raw material 20, the blade part will be subjected to a large reaction force. If the split structure of the auxiliary mold 210 is adopted, the cutting groove 213 will vibrate slightly during the cutting process, resulting in burrs on the product, and the product precision cannot be well guaranteed. However, the integrated structure of the cutting mold 100 can better limit the raw material 20, the cross-sectional area of ​​the cutting groove 123 will not change, and the blade will not vibrate, thereby reducing the burrs on the product and improving the product precision. Therefore, the present invention adopts the cutting mold 100 as the main cutting tool, and the auxiliary mold 210 is only used to assist in the penetration of the raw material 20 at the beginning.

[0053] In this embodiment, if Figure 7 As shown, the feeding auxiliary module 200 includes a guide wheel group 230, which is used to guide and limit the moving raw material 20, and the guide wheel group 230 is arranged on both sides of the auxiliary mold 210. The guide wheel group 230 includes a fixed plate 231 and two rollers 232 installed on the fixed plate 231. The two rollers 232 clamp the raw material 20, thereby ensuring that the raw material 20 will not be misplaced during the movement process.

[0054] To sum up, the cutting mold 100 and its cutting device 10 of the present invention can reduce the processing difficulty while ensuring the processing accuracy, and at the same time ensure that the cutting waste is separated from the tool in time, thereby reducing the cutting resistance, slowing down the tool wear, so as to reduce the processing cost and improve the processing efficiency; moreover, the cutting device 10 also solves the problem of how the raw material 20 can easily pass through the cutting mold 100 at the initial stage.

[0055] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cutting die, characterized in that: include: An upper mold body, a lower mold body and a positioning pin, wherein the upper mold body and the lower mold body are connected to form a whole through the positioning pin; The upper mold body is provided with a first bonding surface and a material feeding surface, and the upper mold body is provided with a positioning through groove matched with the raw material, and the raw material passes through the positioning through groove from the material feeding surface toward the first bonding surface; The lower membrane body is provided with a second joint surface and a discharge surface, and the lower membrane body is provided with a cutting groove corresponding to the positioning groove, the cutting groove forms a blade at the edge of the second joint surface, and the raw material passes through the cutting groove from the second joint surface toward the discharge surface and is cut; the lower membrane body is provided with a discharge chute, the discharge chute is located on both sides of the cutting groove, and the ends of the discharge chute extend to the blade of the cutting groove.

2. The cutting die according to claim 1, characterized in that: A receiving groove which is staggered with the positioning groove is provided on the feeding surface of the upper mold body, and a friction block is provided in the receiving groove. The friction block is located on both sides of the positioning groove. During processing, the friction block is pressed against the two side surfaces of the raw material, thereby rubbing the raw material passing through the positioning groove.

3. The cutting die according to claim 1, characterized in that: A limiting ridge is provided on the first joint surface of the upper mold body, and a limiting groove cooperating with the limiting ridge is provided on the second joint surface of the lower mold body. When the upper mold body and the lower mold body are combined, the limiting ridge is embedded in the limiting groove.

4. The cutting die according to claim 1, characterized in that: The upper mold body and the lower mold body are provided with pin holes, and the positioning pins are inserted into the pin holes.

5. A cutting device, characterized in that: A cutting die according to any one of claims 1 to 4, further comprising: a material belt driving module, a material feeding auxiliary module and a fixed base, wherein the material belt driving module is used to drive the raw material to move, the material feeding auxiliary module is used to help the raw material pass through the cutting die at the beginning, and the fixed base is used to install the cutting die; during processing, the raw material passes through the material feeding auxiliary module and the cutting die in sequence; The feeding auxiliary module group includes an auxiliary mold and a pressure piece, the auxiliary mold includes a first half mold and a second half mold, and cutting grooves with blades are formed at the edges of both of them. The pressure piece is used to drive the first half mold and the second half mold to merge or separate; when the two are merged, the structure of the auxiliary mold is the same as that of the lower mold body, and the two cutting grooves are merged to form the cutting groove.

6. The cutting device according to claim 5, characterized in that: A guide column is provided between the first half mold and the second half mold, and the first half mold and the second half mold are driven by the pressure member to approach or separate from each other along the guide column.

7. The cutting device according to claim 5, characterized in that: The pressure member is a telescopic cylinder structure, there are two pressure members, and the two pressure members drive the first half mold and the second half mold respectively.

8. The cutting device according to claim 5, characterized in that: The feeding auxiliary module includes a guide wheel group, which is used to guide and limit the moving raw materials, and the guide wheel group is arranged on both sides of the auxiliary mold; the guide wheel group includes a fixed plate and two rollers installed on the fixed plate, and the two rollers clamp the raw materials.

9. The cutting device according to claim 5, characterized in that: The material belt driving module includes an unwinder and a rewinder. After the raw material starts from the unwinder, it passes through the feeding auxiliary module and the cutting die in sequence and reaches the rewinder.

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