A cutting machine punching structure with chip removal function

Abstract

The utility model discloses a punching structure of a cutting machine with a chip removal function, including a punching spindle and a punch, the punch is installed at the lower end of the punching spindle, the middle part of the punch is penetrated by punch chip removal holes from top to bottom, the middle part of the punching spindle is penetrated by spindle chip removal channels connected to the punch chip removal holes of the punch, the upper end of the punching spindle is connected to a waste chip suction device through a chip removal pipe, one end of the chip removal pipe is connected to the spindle chip removal channel of the punching spindle, the waste chip suction device includes a vacuum generator and a waste chip collection container, the vacuum generator is connected to the waste chip collection container, the waste chip suction port of the vacuum generator is connected to the other end of the chip removal pipe, and the chip removal port of the vacuum generator is connected to the inside of the waste chip collection container. The structural design of the utility model is reasonable, and waste chips can be directly sucked into the waste chip collection container for collection while the punch is punching, the chip removal effect is good, the table of the cutting machine can be kept clean, the equipment cost can be reduced, and the pipeline arrangement is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, and more specifically to a cutting machine punching structure with a chip removal function. Background Art

[0002] Automatic cutting machines can cut various materials such as cloth, paper, and plates, which can greatly improve the processing accuracy and production efficiency of materials. At present, the heads of common cutting machines on the market are generally equipped with vibrating knives and punching devices, among which the punch of the punching device can be installed on the chuck end of the punching spindle and driven by the punch cylinder to move up and down, thereby punching the material. However, traditional cutting machines have the following shortcomings: the punch of the punching device will inevitably produce waste chips during the operation, and how to collect the waste chips is a problem that many manufacturers find difficult to solve. Although there are some cutting machines with suction fans or vacuum cleaners on the market, the cost of such cutting machines is high, and when the punching device moves, there is also the problem of arranging the suction pipeline with the random head movement. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a cutting machine punching structure with a chip removal function, which can directly suck waste chips into a waste chip collection container while the punch is punching. The chip removal effect is good, the table of the cutting machine can be kept clean, the equipment cost can be reduced, and the pipeline arrangement is simple.

[0004] To achieve the above-mentioned purpose, the utility model provides a cutting machine punching structure with chip removal function, including a punching spindle and a punch, the punch being installed at the lower end of the punching spindle, the middle part of the punch being penetrated by punch chip removal through holes from top to bottom, the middle part of the punching spindle being penetrated by a spindle chip removal channel connected with the punch chip removal through holes of the punch, the upper end of the punching spindle is connected to a waste chip suction device through a chip removal pipe, one end of the chip removal pipe is connected to the spindle chip removal channel of the punching spindle, the waste chip suction device includes a vacuum generator and a waste chip collection container, the vacuum generator is connected to the waste chip collection container, the vacuum generator is provided with an air inlet, a waste chip suction port and a chip removal port, the waste chip suction port of the vacuum generator is connected to the other end of the chip removal pipe, and the chip removal port of the vacuum generator is connected to the interior of the waste chip collection container.

[0005] Preferably, the vacuum generator includes a generator shell, a generator core and a generator chip removal nozzle, the generator shell is provided with an air cavity inside, the air cavity of the generator shell is connected with an air inlet arranged on one side of the generator shell, the generator core is installed in the air cavity of the generator shell, a core channel is penetrated through the middle part of the generator core from top to bottom, the upper end of the core channel is connected to the waste chip suction port arranged on the top of the generator shell, the lower end of the core channel is provided with a core channel expansion whose aperture gradually increases from top to bottom, the generator core is provided with an air hole connecting the air cavity of the generator shell and the core channel expansion, the generator chip removal nozzle is installed at the bottom of the generator shell and is located below the generator core, a chip removal nozzle channel is penetrated through the middle part of the generator chip removal nozzle from top to bottom, the inlet of the chip removal nozzle channel is connected to the core channel expansion, and the outlet of the chip removal nozzle channel is the chip removal port of the vacuum generator.

[0006] Preferably, the aperture of the upper end of the chip removal nozzle channel decreases gradually from top to bottom.

[0007] Preferably, the outer wall of the waste collection container is provided with a plurality of exhaust holes which connect the inner cavity of the container with the outside.

[0008] Preferably, the upper end of the punching spindle is rotatably mounted on the spindle pressure plate via a bearing, and one end of the chip removal tube is connected to the spindle chip removal channel of the punching spindle via a first joint mounted on the spindle pressure plate.

[0009] Preferably, the other end of the chip removal pipe is connected to the waste chip suction port of the vacuum generator through a second joint.

[0010] Preferably, a rotating sleeve is provided on the outside of the punching spindle.

[0011] Preferably, the punch is locked at the lower end of the punching spindle by a locking cap.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The upper end of the punching spindle of the utility model can be connected to the waste chip suction device through a chip removal pipe, the punch chip removal through hole of the punch, the spindle chip removal channel of the punching spindle and the chip removal pipe can be interconnected to form a chip removal passage, and the vacuum generator of the waste chip suction device can suck away the waste chips entering the chip removal passage from the punch by means of vacuum negative pressure, and discharge the waste chips into the waste chip collection container of the waste chip suction device for collection. The structural design of the utility model is reasonable, and the waste chips can be directly sucked into the waste chip collection container while the punch is punching, so the chip removal effect is good, the table of the cutting machine can be kept clean, the equipment cost is reduced, and the pipeline arrangement is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The utility model provides a punching structure of a cutting machine with a chip removal function;

[0016] Figure 2 It is a cross-sectional view of the punching part of the punching structure of the cutting machine provided in the embodiment of the utility model;

[0017] Figure 3 It is a cross-sectional view of the waste scrap suction device provided by an embodiment of the utility model;

[0018] Figure 4 It is a cross-sectional view of a vacuum generator provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Please refer to Figure 1 The embodiment of the utility model provides a cutting machine punching structure with chip removal function, including a punching spindle 1 and a punch 2, wherein the punch 2 is mounted at the lower end of the punching spindle 1, and the upper end of the punching spindle 1 is connected to a waste chip suction device through a chip removal pipe 3. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, the punch 2 can be locked at the lower end chuck portion of the punching spindle 1 by a locking cap 12 , and the punch 2 can be locked by tightening the locking cap 12 .

[0022] like Figure 2 As shown, a punch chip removal through hole 21 is penetrated from top to bottom in the middle of the punch 2 , and a spindle chip removal channel 11 connected to the punch chip removal through hole 21 of the punch 2 is penetrated from top to bottom in the middle of the punching spindle 1 .

[0023] In order to enable the punching spindle 1 to rotate, the upper end of the punching spindle 1 is rotatably mounted on the spindle pressing plate 7 through a bearing 6. In addition, a rotating sleeve 10 may be further provided on the outside of the punching spindle 1.

[0024] like Figure 1 and Figure 2 As shown, one end of the chip removal pipe 3 can be connected to the spindle chip removal channel 11 of the punching spindle 1 through a first joint 8 installed on the spindle pressure plate 7, so that the chip removal pipe 3 is connected to the spindle chip removal channel 11 of the punching spindle 1.

[0025] In this embodiment, the punch chip removal through hole of the punch, the spindle chip removal channel of the punching spindle and the chip removal pipe can be interconnected to form a chip removal passage.

[0026] like Figure 3 and Figure 4 As shown, the waste chip suction device may include a vacuum generator 4 and a waste chip collection container 5. The vacuum generator 4 is connected to the waste chip collection container 5. The waste chip collection container 5 is located below the vacuum generator 4. The waste chip suction port of the vacuum generator 4 is connected to the other end of the chip removal pipe 3. The chip removal port of the vacuum generator 4 is connected to the interior of the waste chip collection container 5.

[0027] Specifically, the vacuum generator 4 may further include a generator shell 41, a generator core 42 and a generator chip removal nozzle 43. An air cavity 44 is provided inside the generator shell 41. The air cavity 44 of the generator shell 41 is connected to an air inlet 411 arranged on one side of the generator shell 41. The air inlet 411 of the generator shell 41 can be connected to various high-pressure gas sources that can provide high-speed gas. The generator core 42 is installed in the air cavity 44 of the generator shell 41. A core channel 421 runs through the middle of the generator core 42 from top to bottom. The upper end of the core channel 421 is connected to a waste chip suction port arranged on the top of the generator shell 41. The waste chip suction port of the generator shell 41 can be passed through The second joint 9 is connected to the other end of the chip removal pipe 3, and the lower end of the core channel 421 is provided with a core channel expansion opening 422 whose aperture gradually increases from top to bottom. The generator core 42 is provided with an inclined air vent 423 which connects the air cavity 44 of the generator housing 41 and the core channel expansion opening 422. The generator chip removal nozzle 43 is installed at the bottom of the generator housing 41 and is located below the generator core 42. A chip removal nozzle channel 431 passes through the middle part of the generator chip removal nozzle 43 from top to bottom, and the inlet of the chip removal nozzle channel 431 is connected to the core channel expansion opening 422. The aperture of the upper end of the chip removal nozzle channel 431 gradually decreases from top to bottom, and the outlet of the chip removal nozzle channel 431 is the chip removal opening of the vacuum generator 4.

[0028] like Figure 1 and Figure 3As shown, the waste collection container 5 can be preferably configured in a square shape, and the outer wall of the waste collection container 5 can be provided with a plurality of exhaust holes 51 for connecting the inner cavity of the container with the outside, and the exhaust holes 51 are conducive to gas circulation.

[0029] The working principle of the utility model is as follows:

[0030] During the punching process, waste chips will directly enter from the punch chip removal hole of the punch. At the same time, high-speed gas will be introduced into the air inlet of the vacuum generator. After the high-speed gas enters the air cavity of the generator shell, it will flow into the chip removal nozzle channel of the generator chip removal nozzle through the inclined air hole, and finally enter the waste chip collection container and be discharged to the outside through the exhaust hole of the waste chip collection container. Based on the principle of Venturi effect, negative pressure can be formed in the core channel of the generator core and in the chip removal passage composed of the punch chip removal hole of the punch, the spindle chip removal channel of the punching spindle and the chip removal pipe. In this way, the vacuum generator can suck away the waste chips entering the chip removal passage from the punch by vacuum negative pressure. After the waste chips enter the core channel of the generator core, they will be discharged into the waste chip collection container through the chip removal nozzle channel of the generator chip removal nozzle for collection.

[0031] To sum up, the utility model has a reasonable structural design. While the punch is punching, waste chips can be directly sucked into the waste chip collection container. The chip removal effect is good, the table of the cutting machine can be kept clean, the equipment cost is reduced, and the pipeline layout is simple.

[0032] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A punching structure of a cutting machine with a chip removal function, comprising a punching spindle and a punch, wherein the punch is mounted at the lower end of the punching spindle, and is characterized in that: A punch chip removal hole is penetrated through the middle part of the punch from top to bottom, and a spindle chip removal channel connected with the punch chip removal hole of the punch is penetrated through the middle part of the punching spindle from top to bottom. The upper end of the punching spindle is connected to the waste chip suction device through a chip removal pipe, and one end of the chip removal pipe is connected to the spindle chip removal channel of the punching spindle. The waste chip suction device includes a vacuum generator and a waste chip collection container, and the vacuum generator is connected to the waste chip collection container. The vacuum generator is provided with an air inlet, a waste chip suction port and a chip removal port. The waste chip suction port of the vacuum generator is connected to the other end of the chip removal pipe, and the chip removal port of the vacuum generator is connected to the interior of the waste chip collection container.

2. A cutting machine punching structure with chip removal function according to claim 1, characterized in that: The vacuum generator includes a generator shell, a generator core and a generator chip removal nozzle. An air cavity is provided inside the generator shell, and the air cavity of the generator shell is connected to an air inlet arranged on one side of the generator shell. The generator core is installed in the air cavity of the generator shell. A core channel runs through the middle of the generator core from top to bottom. The upper end of the core channel is connected to a waste chip suction port arranged on the top of the generator shell. The lower end of the core channel is provided with a core channel expansion whose aperture gradually increases from top to bottom. An air vent connecting the air cavity of the generator shell and the core channel expansion is provided on the generator core. The generator chip removal nozzle is installed at the bottom of the generator shell and is located below the generator core. A chip removal nozzle channel runs through the middle of the generator chip removal nozzle from top to bottom. The inlet of the chip removal nozzle channel is connected to the core channel expansion, and the outlet of the chip removal nozzle channel is the chip removal port of the vacuum generator.

3. A cutting machine punching structure with chip removal function according to claim 2, characterized in that: The aperture of the upper end of the chip removal nozzle channel decreases gradually from top to bottom.

4. The punching structure of a cutting machine with chip removal function according to claim 1, characterized in that: The outer wall of the waste collection container is provided with a plurality of exhaust holes for connecting the inner cavity of the container with the outside.

5. The punching structure of a cutting machine with chip removal function according to claim 1, characterized in that: The upper end of the punching spindle is rotatably mounted on the spindle pressure plate through a bearing, and one end of the chip removal tube is connected to the spindle chip removal channel of the punching spindle through a first joint mounted on the spindle pressure plate.

6. The punching structure of a cutting machine with chip removal function according to claim 1, characterized in that: The other end of the chip removal pipe is connected to the waste chip suction port of the vacuum generator through a second joint.

7. The punching structure of a cutting machine with chip removal function according to claim 1, characterized in that: A rotating sleeve is arranged outside the punching spindle.

8. The punching structure of a cutting machine with chip removal function according to claim 1, characterized in that: The punch is locked at the lower end of the punching spindle through a locking cap.

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