Adsorbing and chip collecting device for punching die of spiral baffle plate

Abstract

The utility model discloses a spiral baffle plate punching die adsorbing and chip collecting device, and belongs to the field of spiral baffle plate production equipment. According to the technical scheme, the spiral baffle plate punching die adsorbing and chip collecting device comprises a lower die and an upper die which are sequentially arranged from bottom to top, a stamping cavity is formed in the upper end of the lower die, and a material collecting cavity is formed below the stamping cavity; according to the punching device, the negative pressure mechanism is started, so that outside air enters the punching cavity through the air channel to blow and clean punching scraps attached to the surfaces of the punching assembly and the punching template, the cleaned scraps enter the material collecting cavity along the hole channel along with airflow to be collected, and the punching assembly and the punching template can be cooled when the airflow enters the punching cavity; the service life of the punching assembly and the punching die plate is prolonged, and after the waste materials and the chippings in the material collecting cavity are collected to a certain amount, the material collecting cavity can be opened to clear out the waste materials and the chippings.

Description

Technical Field

[0001] The utility model belongs to the technical field of spiral baffle production equipment, and in particular relates to a chip adsorption and collection device for a spiral baffle punching die. Background Art

[0002] The most commonly used in traditional heat exchangers are bow-shaped baffles, which have been gradually replaced by spiral baffles in recent years due to defects such as large flow resistance and pressure drop, dead zone, easy scaling, small average temperature difference of heat transfer, and easy failure under vibration conditions. The surface of the spiral baffle needs to be opened with tube holes for inserting heat exchange tubes. The tube holes are generally punched on the finished spiral baffle parts by stamping dies.

[0003] After punching, the existing punching die will leave the debris inside the die or directly scatter on the ground below the die, which needs to be cleaned manually. Moreover, part of the debris will remain inside the die. The impact debris will cause certain wear to the die itself and the workpiece in the subsequent punching work. Frequent manual cleaning will greatly reduce production efficiency. During the punching process, the die itself will generate obvious heat due to high-intensity friction, which will affect the service life of the die. Utility Model Content

[0004] The utility model provides a chip adsorption and collection device for a spiral baffle punching die to solve at least one of the above technical problems.

[0005] The technical solution adopted by the utility model is:

[0006] A chip adsorption and collection device for a spiral baffle punching die comprises a lower die and an upper die which are arranged in sequence from bottom to top, a stamping cavity is provided at the upper end of the lower die, a collecting cavity is provided below the stamping cavity, a punching template is provided between the stamping cavity and the collecting cavity, a stamping block which cooperates with the stamping cavity is provided at the lower end of the upper die, a punching assembly which cooperates with the punching template is provided at the bottom of the stamping block, a plurality of groups of air ducts are provided in the stamping block, the air ducts extend from the upper end of the side wall of the stamping block to the bottom of the stamping block, an exhaust channel connected to the collecting cavity is provided on the side wall of the lower die, and a negative pressure mechanism is connected to the outside of the exhaust channel.

[0007] Preferably, the upper mold slides up and down so that the punching block has a first position completely separated from the punching cavity, a second position in which the outer wall of the punching block is sealed and slidably connected to the inner wall of the punching cavity and the punching assembly is separated from the punching template, and the punching block is located in the second position to allow outside air to enter the punching cavity along the air duct.

[0008] Preferably, the punching template is provided with a plurality of groups of holes, the punching assembly comprises a tool holder, the tool holder is fixedly connected to the bottom of the punching block by a plurality of groups of bolts, and a plurality of groups of tool heads cooperating with the holes are provided at the bottom of the tool holder.

[0009] Preferably, the length of the cutter head is not less than the length of the channel.

[0010] Preferably, the negative pressure mechanism comprises a negative pressure fan, and the negative pressure fan comprises an air inlet end and an air outlet end, and the air inlet end is connected to the air outlet channel.

[0011] Preferably, a filter assembly is provided in the exhaust channel, and the filter assembly includes a filter tube, and the filter tube is connected to the exhaust channel by a thread. The filter tube is provided with a first filter screen, a second filter screen and a third filter screen in sequence along the air flow direction, and the mesh diameters of the first filter screen, the second filter screen and the third filter screen gradually decrease.

[0012] Preferably, a collecting trough is provided in the collecting cavity, the collecting trough is slidably connected to the collecting cavity, and a push-pull handle is provided on the outer wall of the collecting trough.

[0013] Preferably, an air filter element is detachably connected to the upper end of the air duct.

[0014] Preferably, a plurality of guide rods are provided at the upper end of the lower mold, and the upper mold is slidably connected to the guide rods.

[0015] Preferably, a connecting flange is provided at the upper end of the upper mold.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0017] 1. In the present application, the upper mold is started to slide downward so that the punching block slides into the punching cavity to punch the workpiece. At the same time, the punching assembly cooperates with the holes set on the punching template to punch the workpiece. The stamping and punching processes are carried out simultaneously, which can improve the production efficiency of the spiral baffle.

[0018] During the punching process, the punching component punches the workpiece, and the part located in the channel area is punched out along the channel to form a process hole on the surface of the workpiece. The punched workpiece waste falls into the aggregate cavity along the channel for collection. After the punching and punching actions are completed, the upper mold is started and slightly moved upward by one end to expose the upper end of the air duct to the outside world, and the lower end is located between the bottom surface of the punching block and the punching cavity. By opening the negative pressure mechanism, the outside air enters the punching cavity through the air duct to blow and clean the punching components and the punching template The stamping debris attached to the surface is purged and cleaned, and the cleaned debris follows the air flow along the channel into the aggregate cavity for collection.

[0019] On the other hand, the airflow entering the punching cavity will cool down the punching components and the punching template, thereby increasing the service life of the punching components and the punching template. When a certain amount of waste and debris is collected in the collection cavity, the collection cavity can be opened to clear out the waste and debris.

[0020] 2. As a preferred embodiment of the utility model, after the stamping and punching actions are completed, the upper mold is driven to slide upward to the second position, so that the bottom end face of the stamping block can ensure the sealing of the upper opening of the stamping cavity while forming a through air flow channel among the air duct, the stamping cavity, the hole channel, and the aggregate cavity. At this time, the negative pressure mechanism is started to drive the outside air to circulate along the above-mentioned air flow channel, so that the air flow entering the stamping cavity can blow and clean the stamping debris remaining in the stamping cavity.

[0021] 3. As a preferred embodiment of the utility model, during the punching process, the tool holder slides downward under the push of the punching block, and the tool head cuts the workpiece in the hole area. Specifically, the tool head is a cylindrical component with a cutting tip. The tool holder and the punching block can be disassembled by bolts to facilitate the repair, maintenance or replacement of the tool holder and the tool head. In order to ensure the cutting efficiency of the tool head, the tool head needs to be polished regularly.

[0022] Furthermore, the length of the cutter head is not less than the length of the channel. This design enables the cutter head to directly push the waste generated by cutting into the collecting cavity along the channel when punching the workpiece, thereby preventing the cut waste from being stuck in the channel.

[0023] 4. As a preferred embodiment of the present invention, the setting of the filter assembly facilitates preventing the debris in the aggregate chamber from entering the negative pressure fan along the exhaust channel and affecting the negative pressure fan. Specifically, the setting of the first filter facilitates blocking the stamping debris with a larger diameter, the setting of the second filter facilitates filtering the debris with a smaller diameter, and the setting of the third filter facilitates filtering the dust particles in the air flowing through.

[0024] 5. As a preferred embodiment of the present invention, the impact debris entering the collection cavity will fall into the collection trough. When the impact debris collected in the collection trough reaches a certain amount, the collection trough is pulled out by pushing and pulling the handle, and then the debris collected in the collection trough can be poured out.

[0025] 6. As a preferred embodiment of the utility model, an air filter is detachably connected to the upper end of the air duct. The air filter is arranged to filter dust mixed in the air entering the air duct, prevent dust in the air from adhering to the air duct and causing blockage, and further prevent dust in the external environment from entering the stamping cavity, the aggregate cavity and the negative pressure fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is one of the structural schematic diagrams of a specific implementation method of the utility model;

[0027] Figure 2 This is the second structural diagram of a specific implementation method of the utility model;

[0028] Figure 3 It is a front view of a specific implementation method of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the filter assembly in the utility model.

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0031] In the attached picture:

[0032] 1. Lower mold; 101. Stamping cavity; 1011. Punching template; 2. Upper mold; 201. Stamping block; 202. Tool holder; 2021. Tool head; 203. Air duct; 204. Connecting flange; 3. Collecting cavity; 301. Exhaust duct; 4. Negative pressure fan; 401. Air inlet end; 5. Collecting trough; 501. Push-pull handle; 6. Filter tube; 601. First filter screen; 602. Second filter screen; 603. Third filter screen; 7. Guide rod. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0035] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0038] Reference Figure 1-Figure 4 A spiral baffle punching die adsorption and chip collection device comprises a lower die 1 and an upper die 2 which are arranged in sequence from bottom to top, a stamping cavity 101 is arranged at the upper end of the lower die 1, a collecting cavity 3 is arranged below the stamping cavity 101, a punching template 1011 is arranged between the stamping cavity 101 and the collecting cavity 3, a stamping block 201 cooperating with the stamping cavity 101 is arranged at the lower end of the upper die 2, a punching assembly cooperating with the punching template 1011 is arranged at the bottom of the stamping block 201, a plurality of groups of air ducts 203 are arranged in the stamping block 201, the air ducts 203 penetrate from the upper end of the side wall of the stamping block 201 to the bottom of the stamping block 201, an exhaust channel 301 connected to the collecting cavity 3 is arranged on the side wall of the lower die 1, and a negative pressure mechanism is connected to the outside of the exhaust channel 301.

[0039] It can be understood by those skilled in the art that the staff places the spiral baffle part to be stamped into the stamping cavity 101 and adjusts it to the set stamping position, and starts the upper mold 2 to slide downward so that the stamping block 201 slides into the stamping cavity 101 to stamp the workpiece. At the same time, the punching assembly cooperates with the holes set on the punching template 1011 to punch the workpiece. The stamping and punching processes are carried out simultaneously, which can improve the production efficiency of the spiral baffle.

[0040] During the punching process, the punching assembly punches the workpiece, punches out the part located in the channel area along the channel, forms a process hole on the surface of the workpiece, and the punched workpiece waste falls into the collection chamber 3 along the channel for collection. After the punching and punching actions are completed, the upper mold 2 is started to move slightly upward by one end, so that the upper end of the air duct 203 is exposed to the outside world, and the lower end is located between the bottom surface of the punching block 201 and the punching chamber 101. By opening the negative pressure mechanism, the outside air enters the punching chamber 101 through the air duct 203 to blow and clean the punching debris attached to the surface of the punching assembly and the punching template 1011. The cleaned debris enters the collection chamber 3 along the channel with the air flow and is collected. On the other hand, the air flow entering the punching chamber 101 will cool down the punching assembly and the punching template 1011, and increase the service life of the punching assembly and the punching template 1011. When the waste and debris in the collection chamber 3 are collected to a certain amount, the collection chamber 3 can be opened to clear out the waste and debris.

[0041] Specifically, the upper mold 2 slides up and down so that the punch block 201 has a first position completely separated from the punch cavity 101, such as Figure 1 As shown; the outer wall of the punching block 201 is sealed and slidably connected to the inner wall of the punching cavity 101 and the punching assembly is separated from the punching template 1011, as in the second position Figure 2 As shown, the stamping block 201 is located at the second position so that external air can enter the stamping cavity 101 along the air duct 203 .

[0042] After the stamping and punching actions are completed, the upper mold 2 is driven to slide upward to the second position so that the bottom end face of the stamping block 201 can ensure the sealing of the upper opening of the stamping cavity 101 while forming a through air flow channel among the air duct 203, the stamping cavity 101, the hole channel, and the aggregate cavity 3. At this time, the negative pressure mechanism is started to drive the outside air to circulate along the above-mentioned air flow channel, so that the airflow entering the stamping cavity 101 can blow and clean the stamping debris remaining in the stamping cavity 101.

[0043] As a specific implementation of the punching template 1011 and the punching assembly in this application, refer to Figure 1 and Figure 2 The punching template 1011 is provided with a plurality of groups of holes, and the punching assembly includes a tool holder 202, which is fixedly connected to the bottom of the punching block 201 by a plurality of groups of bolts, and a plurality of groups of tool heads 2021 cooperating with the holes are provided at the bottom of the tool holder 202.

[0044] During the punching process, the tool holder 202 slides downward under the push of the punch block 201, and the cutter head 2021 cuts the workpiece in the hole area. Specifically, the cutter head 2021 is a cylindrical component with a cutting tip. The tool holder 202 and the punch block 201 can be disassembled by bolts to facilitate the repair, maintenance or replacement of the tool holder 202 and the cutter head 2021. In order to ensure the cutting efficiency of the cutter head 2021, the cutter head 2021 needs to be polished regularly.

[0045] Preferably, the length of the cutter head 2021 is not less than the length of the channel. This design allows the cutter head 2021 to directly push the waste generated by cutting into the collecting cavity 3 along the channel when punching the workpiece, avoiding the cut waste from being stuck in the channel.

[0046] As a specific implementation of the negative pressure mechanism, the negative pressure mechanism includes a negative pressure fan 4 , and the negative pressure fan 4 includes an air inlet end 401 and an air outlet end, and the air inlet end 401 is connected to the air outlet passage 301 .

[0047] By turning on the negative pressure fan 4, the outside air enters the stamping cavity 101 along the air duct 203, then enters the collecting cavity 3 along the hole, and then enters the exhaust air inlet end 401 along the exhaust air channel 301, and finally is discharged from the exhaust air end.

[0048] As a preferred example of the above embodiment, refer to Figure 2 and Figure 4 A filter assembly is provided in the exhaust channel 301, and the filter assembly includes a filter tube 6. The filter tube 6 is connected to the exhaust channel 301 by threads. The filter tube 6 is provided with a first filter screen 601, a second filter screen 602 and a third filter screen 603 in sequence along the air flow direction. The mesh diameters of the first filter screen 601, the second filter screen 602 and the third filter screen 603 gradually decrease.

[0049] The setting of the filter assembly facilitates preventing debris in the aggregate chamber 3 from entering the negative pressure fan 4 along the exhaust channel 301 and affecting the negative pressure fan 4. Specifically, the setting of the first filter 601 facilitates blocking stamping debris with a larger diameter, the setting of the second filter 602 facilitates filtering debris with a smaller diameter, and the setting of the third filter 603 facilitates filtering dust particles in the air flowing through.

[0050] As a preferred embodiment of the collecting cavity 3, refer to Figure 1-Figure 3 A collecting groove 5 is provided in the collecting cavity 3, and the collecting groove 5 is slidably connected to the collecting cavity 3. A push-pull handle 501 is provided on the outer wall of the collecting groove 5.

[0051] The impact debris entering the collecting cavity 3 will fall into the collecting trough 5. When the impact debris collected in the collecting trough 5 reaches a certain amount, the collecting trough 5 is pulled out by pushing and pulling the handle 501, and then the debris collected in the collecting trough 5 can be poured out.

[0052] As a preferred embodiment of the present application, an air filter is detachably connected to the upper end of the air duct 203. The air filter is arranged to filter dust mixed in the air entering the air duct 203, prevent dust in the air from adhering to the air duct 203 and blocking the air duct 203, and further prevent dust in the external environment from entering the stamping chamber 101, the collecting chamber 3 and the negative pressure fan 4.

[0053] As a preferred embodiment of the present application, refer to Figure 1-Figure 3 , a plurality of guide rods 7 are provided at the upper end of the lower die 1, and the upper die 2 is slidably connected to the guide rods 7. The setting of the guide rods 7 facilitates the guidance and positioning of the upper die 2, ensures that the punching block 201 and the punching cavity 101 can be accurately matched, and improves the qualified rate of the punched finished product.

[0054] Furthermore, a connecting flange 204 is provided at the upper end of the upper mold 2. The connecting flange 204 is provided to facilitate connection with an external driving device, and the external driving device drives the upper mold 2 to slide up and down. The driving device can be a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is fixedly connected to the connecting flange 204 by fixing bolts.

[0055] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0056] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A spiral baffle punching die adsorption and chip collection device, comprising a lower die (1) and an upper die (2) arranged in sequence from bottom to top, the upper end of the lower die (1) is provided with a punching cavity (101), a collecting cavity (3) is provided below the punching cavity (101), a punching template (1011) is provided between the punching cavity (101) and the collecting cavity (3), the lower end of the upper die (2) is provided with a punching block (201) matched with the punching cavity (101), the bottom of the punching block (201) is provided with a punching assembly matched with the punching template (1011), characterized in that: The punching block (201) is provided with a plurality of groups of air ducts (203), the air ducts (203) extending from the upper end of the side wall of the punching block (201) to the bottom of the punching block (201), the side wall of the lower mold (1) is provided with an exhaust passage (301) connected to the collecting cavity (3), and the exhaust passage (301) is externally connected to a negative pressure mechanism.

2. A chip adsorption and collection device for a spiral baffle punching die according to claim 1, characterized in that: The upper mold (2) slides up and down so that the punching block (201) has a first position in which it is completely separated from the punching cavity (101), and a second position in which the outer wall of the punching block (201) is sealed and slidably connected to the inner wall of the punching cavity (101) and the punching assembly is separated from the punching template (1011); the punching block (201) is located in the second position so that external air can enter the punching cavity (101) along the air duct (203).

3. A chip adsorption and collection device for a spiral baffle punching die according to claim 2, characterized in that: The punching template (1011) is provided with a plurality of groups of holes, and the punching assembly comprises a tool holder (202), wherein the tool holder (202) is fixedly connected to the bottom of the punching block (201) via a plurality of groups of bolts, and a plurality of groups of tool heads (2021) matching the holes are provided at the bottom of the tool holder (202).

4. A chip adsorption and collection device for a spiral baffle punching die according to claim 3, characterized in that: The length of the cutter head (2021) is not less than the length of the channel.

5. The chip adsorption and collection device for a spiral baffle punching die according to claim 1, characterized in that: The negative pressure mechanism comprises a negative pressure fan (4), the negative pressure fan (4) comprises an air inlet end (401) and an air outlet end, and the air inlet end (401) is connected to the air outlet channel (301).

6. A chip adsorption and collection device for a spiral baffle punching die according to claim 5, characterized in that: A filter assembly is provided in the exhaust passage (301), the filter assembly comprising a filter tube (6), the filter tube (6) being connected to the exhaust passage (301) via a thread, the filter tube (6) being provided with a first filter screen (601), a second filter screen (602) and a third filter screen (603) in sequence along the air flow direction, the mesh diameters of the first filter screen (601), the second filter screen (602) and the third filter screen (603) gradually decreasing.

7. The chip adsorption and collection device for a spiral baffle punching die according to claim 1, characterized in that: A collecting groove (5) is provided in the collecting cavity (3), the collecting groove (5) is slidably connected to the collecting cavity (3), and a push-pull handle (501) is provided on the outer wall of the collecting groove (5).

8. The chip adsorption and collection device for a spiral baffle punching die according to claim 1, characterized in that: An air filter element is detachably connected to the upper end of the air duct (203).

9. The chip adsorption and collection device for a spiral baffle punching die according to claim 1, characterized in that: The upper end of the lower mold (1) is provided with a plurality of guide rods (7), and the upper mold (2) is slidably connected to the guide rods (7).

10. A chip adsorption and collection device for a spiral baffle punching die according to any one of claims 1 to 9, characterized in that: The upper end of the upper mold (2) is provided with a connecting flange (204).

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