A waste cleaning device for an engine gasket punch press

Abstract

The utility model relates to stamping die technical field, especially involves a kind of waste cleaning device for engine sealing gasket stamping machine, including waste cleaning subassembly and waste blanking plate, the waste cleaning subassembly includes intercommunicating negative pressure mechanism and conveying mechanism;The waste blanking plate is set below stamping die, the waste blanking plate side away from the stamping die is set the conveying mechanism;A plurality of large diameter through hole and small diameter through hole along the stamping direction extension setting are opened on the waste blanking plate, the large size waste falls through the large diameter through hole;The conveying mechanism is conducted with the small diameter through hole, and it is used for the conveying of small size waste.This waste cleaning device reduces the phenomenon of waste up, reduces the generation of waste product, reduces the rate of defective product, improves production and processing efficiency, reduces cost.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a waste cleaning device for an engine gasket stamping machine. Background Technology

[0002] A cylinder head gasket, also known as a cylinder liner, is located between the cylinder head and the cylinder block. Its function is to fill the microscopic gaps between the cylinder head and the cylinder block, ensuring good sealing at the mating surfaces. This guarantees a reliable seal for air, oil, and water during normal engine operation, preventing air leakage from the cylinder and water jacket leakage from the water jacket, and preventing the leakage of coolant and engine oil flowing from the engine block to the cylinder head. Its working mechanism is that the axial force generated by tightening the cylinder head bolts causes the cylinder head to press against the cylinder head. The sealing ribs arranged on the cylinder head gasket undergo elastic deformation when compressed by the cylinder head, creating contact pressure between them and the cylinder head and the cylinder block, thereby achieving a reliable seal for air, oil, water, and other media. Depending on the material, cylinder head gaskets can be divided into various types, such as metal asbestos gaskets, metal composite gaskets, and all-metal gaskets.

[0003] Currently, automotive engine gaskets are mostly produced by stamping, a pressure processing method that uses a die mounted on a press to apply pressure to the material at room temperature, causing it to separate or plastically deform, thereby obtaining the desired part. Stamping dies are a crucial component in the stamping process. Existing stamping dies on the market are prone to scrap jumping during the stamping process, affecting subsequent stamping steps and resulting in poor product quality and a high scrap rate. This generates approximately 30-50 scrap pieces per day (an average of 40 scrap pieces per day), leading to material waste, increased costs, reduced production efficiency, and adversely affecting the lifespan of the stamping dies. Utility Model Content

[0004] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a waste cleaning device for engine gasket stamping machine.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A waste material cleaning device for an engine gasket stamping machine, wherein the waste material includes large-sized waste material and small-sized waste material; the waste material cleaning device includes a waste material cleaning component and a waste material discharge plate, the waste material cleaning component includes a negative pressure mechanism and a conveying mechanism connected to each other; the waste material discharge plate is disposed below the stamping die, and the conveying mechanism is disposed on the side of the waste material discharge plate away from the stamping die; the waste material discharge plate has a plurality of large-diameter through holes and small-diameter through holes extending along the stamping direction, the large-sized waste material falls through the large-diameter through holes; the conveying mechanism is connected to the small-diameter through holes for conveying the small-sized waste material.

[0007] Large-size waste refers to waste with a diameter greater than 12mm, while small-size waste refers to waste with a diameter less than 12mm.

[0008] The beneficial effects of the waste cleaning device for engine gasket stamping machines provided by this utility model are as follows:

[0009] During the stamping process of engine gaskets, small-sized scrap materials that are prone to jumping onto the processing surface due to the negative pressure caused by the retraction of the stamping head are cleaned by a scrap cleaning device that creates a negative pressure greater than that caused by the retraction of the stamping head. This causes the small-sized scrap materials to move into the conveying mechanism under the greater negative pressure of the scrap cleaning device, greatly reducing the phenomenon of small-sized scrap materials jumping up, reducing the generation of scrap, lowering the defect rate, improving production efficiency, and reducing costs.

[0010] Based on the above technical solution, the present invention can also be improved in the following ways:

[0011] Furthermore, the conveying mechanism includes at least one transverse conveying pipe extending along the waste discharge plate, and also includes several first longitudinal conveying pipes connected to the waste discharge plate, wherein the several first longitudinal conveying pipes enable the connection between the small-diameter through hole and the transverse conveying pipe.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that the small-sized waste formed by stamping is transported to the transverse conveying pipe through the small-diameter through hole and the first longitudinal conveying pipe, thereby realizing the cleaning of the small-sized waste.

[0013] Furthermore, the conveying mechanism also includes several conveying cavities and a second longitudinal conveying pipe, the second longitudinal conveying pipe being connected to the waste material discharge plate, and the small-diameter through hole, the second longitudinal conveying pipe, the conveying cavity, and the transverse conveying pipe being connected in sequence.

[0014] The beneficial effect of adopting the above-mentioned further technical solution is that the small-sized waste material formed by stamping is transported to the transverse conveying pipe through the small-diameter through hole, the second longitudinal conveying pipe, and the conveying cavity, thereby realizing the cleaning of the small-sized waste material.

[0015] Furthermore, the number, position, and inner diameter of the first and second longitudinal conveying pipes are adapted to their corresponding small-diameter through holes.

[0016] The beneficial effects of adopting the above-mentioned further technical solutions are: ensuring the cleaning of small-sized waste materials at different locations, avoiding the residue of small-sized waste materials, and preventing small-sized waste materials from jumping upwards.

[0017] Furthermore, along the extension direction of the waste material discharge plate, the conveying cavity is orthogonally arranged to the transverse conveying pipe.

[0018] Furthermore, the conveying cavity includes a first plate and a second plate that are spliced ​​together. Arc-shaped grooves are formed on the opposing surfaces of the first plate and the second plate, and the two arc-shaped grooves form a conveying path for small-sized waste materials.

[0019] The beneficial effect of adopting the above-mentioned further technical solution is that by designing the inner cavity shape of the conveying cavity, it is convenient to convey small-sized waste materials.

[0020] Furthermore, it also includes a third structural component, which is connected to the first plate and the second plate to form the conveying cavity, and the transverse conveying pipe passes through the conveying cavity.

[0021] The beneficial effect of adopting the above-mentioned further technical solution is that it facilitates the conveying of small-sized waste materials into the transverse conveying pipe.

[0022] Furthermore, when the number of transverse conveying pipes is greater than one, the transverse conveying pipes are spaced apart.

[0023] The beneficial effects of adopting the above-mentioned further technical solution are: to facilitate the cleaning of small-sized waste materials in different locations, to avoid the residue of small-sized waste materials, and to prevent small-sized waste materials from jumping upwards.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] The waste cleaning device for engine gasket stamping machine provided by this utility model realizes the cleaning of waste from engine gasket stamping machine and avoids waste jumping up;

[0026] Large-sized waste materials fall directly through the through holes in the waste material drop plate under their own gravity, which can effectively prevent large-sized waste materials from clogging the conveying mechanism. At the same time, it can also avoid the problem that the conveying mechanism needs to be designed with an excessively large inner diameter to accommodate the size of large-sized waste materials.

[0027] Small-sized waste materials are cleaned by the waste cleaning component. The small-sized waste materials formed by stamping are transported in a timely manner by the negative pressure mechanism and the conveying mechanism to avoid the small-sized waste materials being attracted by the negative pressure when the stamping head retracts and jumping upwards.

[0028] The waste cleaning device for the engine gasket stamping machine solves the technical problem of small-sized waste jumping up. During the production process, no waste products are generated due to small-sized waste jumping up, which improves the production yield, reduces production costs, reduces raw material loss, and greatly improves the service life of the mold.

[0029] This waste cleaning device for engine gasket stamping machines can clean up waste without changing the structure of existing stamping machines, resulting in low cost and high efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the waste cleaning device of this utility model;

[0031] Figure 2 This is a structural schematic diagram of the waste cleaning device of this utility model from another angle;

[0032] Figure 3 This is a schematic diagram of the conveying mechanism;

[0033] Figure 4 This is a schematic diagram of the conveying cavity.

[0034] Figure 5 This is a partial structural diagram of the waste material discharge plate;

[0035] Figure 6 This is a schematic diagram of the sealing gasket structure;

[0036] Figure 7 A schematic diagram showing the classification of holes on a sealing gasket;

[0037] Figure 8 This is a three-station diagram of the sealing gasket and the waste material discharge plate;

[0038] Figure 9 This is a schematic diagram showing the positional relationship between the sealing gasket and the waste cleaning device.

[0039] Figure label:

[0040] 1. Conveying mechanism; 12. Transverse conveying pipe; 13. First longitudinal conveying pipe; 14. Conveying cavity; 141. First plate; 142. Second plate; 143. Third structural component; 144. Inner cavity; 15. Second longitudinal conveying pipe;

[0041] 2. Scrap material discharge plate; 21. Large diameter through hole; 22. Medium diameter through hole; 23. Small diameter through hole;

[0042] 3. Sealing gasket;

[0043] 301. First set of punches;

[0044] 311. Second group of large holes; 312. Second group of medium holes; 313. Second group of small holes;

[0045] 321. Third group of medium-sized holes; 322. Third group of small-sized holes;

[0046] 41. First workstation; 42. Second workstation; 43. Third workstation. Detailed Implementation

[0047] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0048] See Figures 1 to 2 This utility model provides a waste cleaning device for an engine gasket stamping machine. The engine gasket undergoes multiple stamping processes to stamp all holes, with each stamping operation covering a portion of the holes. The waste cleaning device includes a waste cleaning assembly and a waste discharge plate 2. The waste cleaning assembly includes a connected negative pressure mechanism and a conveying mechanism 1. The waste discharge plate 2 is positioned below the stamping die, and the conveying mechanism 1 is located on the side of the waste discharge plate 2 furthest from the stamping die. (Reference) Figure 5 As shown, the waste material discharge plate 2 has several large-diameter through holes 21, medium-diameter through holes 22, and small-diameter through holes 23 (note that only some of the large-diameter through holes, medium-diameter through holes, and small-diameter through holes are shown in the figure to illustrate their approximate relative size relationship). The large-diameter through holes 21, medium-diameter through holes 22, and small-diameter through holes 23 are adapted to the position of the punch on the stamping die. Large-sized waste materials fall naturally through the large-diameter through holes 21 or medium-diameter through holes 22 under the action of gravity. The conveying mechanism 1 is connected to all the small-diameter through holes 23 corresponding to at least one stamping station and is used to provide negative pressure to all the small-diameter through holes 23 corresponding to this station to realize the conveying of small-sized waste materials. The negative pressure mechanism is used to provide negative pressure.

[0049] See Figure 3 In this embodiment, the conveying mechanism 1 includes two transverse conveying pipes 12 extending along the waste discharge plate 2. The two transverse conveying pipes 12 are connected to a negative pressure mechanism through a pipeline to maintain a negative pressure inside the transverse conveying pipes 12. It also includes several first longitudinal conveying pipes 13 connected to the waste discharge plate 2. Each first longitudinal conveying pipe 13 connects each small-diameter through hole 23 to the transverse conveying pipeline 12. Under the action of the negative pressure mechanism, small-sized waste is conveyed from the discharge point to the transverse conveying pipes 12.

[0050] The conveying mechanism 1 further includes several conveying cavities 14 and a second longitudinal conveying pipe 15, which are used to connect to small-diameter through holes 23 that are relatively far away from the transverse conveying pipe 12. The second longitudinal conveying pipe 15 is connected to the corresponding small-diameter through holes 23 on the waste material discharge plate 2. The conveying cavities 14 are used to connect the second longitudinal conveying pipe 15 and the transverse conveying pipe 12. The first longitudinal conveying pipe 13 and the second longitudinal conveying pipe 15 are used to convey all the small-sized waste materials corresponding to the small-diameter through holes 23 near the transverse conveying pipe 12 and in this station to the transverse conveying pipe 12.

[0051] Because the through holes on the sealing gasket 3 are completed by stamping at multiple stations, each stamping process corresponds to a set of conveying mechanisms. Each set of conveying mechanisms is adapted to the position of the small diameter through hole 23 in the corresponding process. This embodiment only shows the conveying mechanism corresponding to one station.

[0052] See Figure 6 , Figure 7 As shown, this is a sealing gasket 3 for a certain engine, which has several holes of different sizes formed by stamping. These holes are formed by stamping at three different workstations. Figure 5 This is a partial schematic diagram of the waste material discharge plate 2. Figure 8 The diagram shows the sealing gasket 3 at three different stations on the waste material discharge plate 2. In actual processing, the complete plate passes through the three different stations in sequence, and some holes are punched at each station. After passing through the three stations, all the designed holes on the sealing gasket 3 are obtained.

[0053] The waste generated during the stamping process is cleaned up by a waste cleaning device to prevent waste from jumping up, especially small-sized waste. Small-sized waste refers to waste with a diameter of less than 12mm. Waste with a diameter of more than 12mm can fall down by its own weight.

[0054] For more specific details, please refer to Figure 6 , Figure 7 , Figure 8As shown, the engine sealing gasket 3 is processed at the first station 41, where five holes in the first group of punches 301 are all larger than 12mm. The second station 42 is used to process the second group of punches, which includes four large holes 311, thirteen medium holes 312, and four small holes 313. The third station 43 is used to process the third group of punches, which includes five medium holes 321 and fifteen small holes 322. The waste generated by the first group of punch holes 301, the second group of large holes 311, the second group of medium holes 312, and the third group of medium holes 321 can all be cleaned by their own gravity falling down. Therefore, it is only necessary to set the corresponding dropping holes on the waste dropping plate 2. However, the waste generated by the four second group of small holes 313 and the fifteen third group of small holes 322 is less than 12mm in size. When the punch retracts, the negative pressure generated can easily cause the waste to bounce back to the working surface, affecting the processing quality of subsequent processes. Therefore, it is necessary to rely on a waste cleaning device for cleaning.

[0055] like Figure 9 As shown, the second set of small-sized holes 313 processed on the second station 42 corresponds to the transverse conveying pipe 12 above the conveying mechanism 1, that is... Figure 9 The first longitudinal conveying pipe 13 and the second longitudinal conveying pipe 15 on the upper transverse conveying pipe 12 respectively correspond to one of the small holes in the second group of small-sized holes 313. These holes are used to draw the corresponding small-sized waste material into the transverse conveying pipe 12 under the action of the negative pressure mechanism, preventing it from rebounding to the working surface. The third group of small-sized holes 322 processed on the third station 43 corresponds to... Figure 9 The lower transverse conveying pipe 12 shown, namely the first longitudinal conveying pipe 13 and the second longitudinal conveying pipe 15 on the lower transverse conveying pipe 12, respectively correspond to a small hole in the third group of small-sized holes 322. They are used to absorb the small-sized waste corresponding to the small-sized holes into the transverse conveying pipe 12 and carry it away, so as to prevent it from bouncing back to the working surface.

[0056] The small-sized waste material being sucked up is transported to the waste collection point via the transverse conveyor pipe 12;

[0057] The second longitudinal conveying pipe 15 is positioned differently from the transverse conveying pipe 12 it is connected to, in order to reach the drop position of the small-sized waste that needs to be collected, so as to achieve the cleaning of small-sized waste at different locations.

[0058] The second longitudinal conveying pipe 15 is connected to the transverse conveying pipe 12 via the conveying cavity 14. (See below) Figure 4The conveying cavity 14 includes a first plate 141 and a second plate 142 that are spliced ​​together. Arc-shaped grooves are formed on the opposing surfaces of the first plate 141 and the second plate 142. The two arc-shaped grooves form an inner cavity 144, which is connected to the second longitudinal conveying pipe 15 and the transverse conveying pipe 12 for conveying small-sized waste materials. The inner cavity 144 has a hollow cylindrical structure to facilitate the conveying of small-sized waste materials. The conveying cavity 14 also includes a third structural member 143, which has a concave arc surface. The concave arc surface cooperates with one end of the inner cavity 144 to form a circular hole so that the transverse conveying pipe 12 can pass through.

[0059] The waste cleaning device for engine sealing gasket stamping machine provided by this utility model can clean large-sized waste and small-sized waste separately, avoiding waste jumping up and causing subsequent waste products. Before the improvement, the waste rate was 30-50 pieces per day on average. After adopting this waste cleaning device, the waste rate was greatly reduced, the production efficiency was improved, the production cost was reduced, the raw material loss was reduced, and the service life of the mold was greatly improved.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste cleaning device for an engine gasket stamping machine, wherein the waste includes large-sized waste and small-sized waste; characterized in that, The waste cleaning device includes a waste cleaning component and a waste discharge plate. The waste cleaning component includes a negative pressure mechanism and a conveying mechanism that are connected to each other. The waste discharge plate is located below the stamping die, and the conveying mechanism is located on the side of the waste discharge plate away from the stamping die. The waste discharge plate has several large-diameter through holes and small-diameter through holes extending along the stamping direction. Large-sized waste materials fall through the large-diameter through holes. The conveying mechanism is connected to the small-diameter through holes and is used for conveying small-sized waste materials.

2. The waste cleaning device for engine gasket stamping machine according to claim 1, characterized in that, The conveying mechanism includes at least one transverse conveying pipe extending along the waste discharge plate, and also includes several first longitudinal conveying pipes connected to the waste discharge plate, wherein the several first longitudinal conveying pipes enable the connection between the small-diameter through hole and the transverse conveying pipe.

3. The waste cleaning device for engine gasket stamping machine according to claim 2, characterized in that, The conveying mechanism also includes several conveying cavities and a second longitudinal conveying pipe. The second longitudinal conveying pipe is connected to the waste material discharge plate. The small-diameter through hole, the second longitudinal conveying pipe, the conveying cavity, and the transverse conveying pipe are connected in sequence.

4. The waste cleaning device for engine gasket stamping machine according to claim 3, characterized in that, The number, position, and inner diameter of the first and second longitudinal conveying pipes are adapted to their corresponding small-diameter through holes.

5. The waste cleaning device for engine gasket stamping machine according to claim 3, characterized in that, Along the extension direction of the waste discharge plate, the conveying cavity is orthogonally arranged to the transverse conveying pipe.

6. The waste cleaning device for engine gasket stamping machine according to claim 3, characterized in that, The conveying cavity includes a first plate and a second plate that are spliced ​​together. Arc-shaped grooves are formed on the opposite surfaces of the first plate and the second plate, and the two arc-shaped grooves form a conveying path for small-sized waste materials.

7. The waste cleaning device for engine gasket stamping machine according to claim 6, characterized in that, It also includes a third structural component, which is connected to the first plate and the second plate to form the conveying cavity, and the transverse conveying pipe passes through the conveying cavity.

8. The waste cleaning device for engine gasket stamping machine according to claim 2, characterized in that, When the number of transverse conveying pipes is greater than one, the transverse conveying pipes are spaced apart.

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