Heat preservation shell plate machining die for tail gas catalytic converter

Abstract

The utility model provides a thermal insulation shell plate processing die for a tail gas catalyst, which realizes processing from a flat plate to a thermal insulation shell plate and reduces the production cost, and an embossing unit comprises an embossing upper plate and an embossing lower plate which are respectively arranged on an upper die and a lower die. Embossing convex points are respectively arranged on the embossing upper plate and the embossing lower plate corresponding to the shapes of the plates and are used for forming concave-convex textures on a material belt; the forming and blanking unit comprises a blanking male die arranged at the lower end of the upper die and a blanking female die arranged at the upper end of the lower die, the blanking male die is consistent with a heat preservation shell plate in appearance, a blanking groove is formed in the blanking female die, the blanking male die and the blanking groove are matched to cut out the appearance of the plate, the forming and blanking unit further comprises a discharging plate, and the discharging plate is provided with an avoiding groove corresponding to the blanking female die. A discharging spring is arranged on the discharging plate, and discharging rubber is further arranged between the upper die and the lower die. The waste material cutting-off unit comprises a cutting-off male die arranged at the lower end of the upper die, the cutting-off male die is located on the side edge of the blanking female die, and the cutting-off male die and the blanking female die are matched to cut off the material belt.

Description

TECHNICAL FIELD

[0001] The utility model relates to catalytic converter production equipment technical field, concretely relates to a kind of heat-insulating shell plate piece processing mould for tail gas catalytic converter. BACKGROUND

[0002] The outer cylinder of diesel engine aftertreatment catalytic converter is wrapped with heat-insulating shell, and the heat-insulating shell is adhered with a layer of heat-insulating cotton, so as to achieve the heat preservation effect requirement in a way similar to wearing a cotton-padded jacket.

[0003] The heat-insulating shell is usually wrapped in a two-piece structure, and the heat-insulating shell is made by first embossing the plate and then forming the two-piece heat-insulating shell through a stamping die, and then the two-piece heat-insulating shell is welded to the outside of the catalytic converter. The embossing of the plate before stamping has multiple effects in the manufacturing process of the heat-insulating shell, such as enhancing the connection strength, improving the sealing performance, improving the appearance texture, and adapting to complex shapes.

[0004] Previously, the embossed plate was purchased and then blanked. The purchased heat-insulating shell plate for tail gas catalytic converter is shown in FIG. Figure 1 The process is costly, and currently, there is an urgent need to design a processing equipment that can continuously process the heat-insulating shell plate for tail gas catalytic converter. UTILITY MODEL CONTENT

[0005] To solve the above problems, the utility model provides a heat-insulating shell plate processing mould for tail gas catalytic converter, which realizes the processing from a flat plate to a heat-insulating shell plate for tail gas catalytic converter, and reduces the production cost.

[0006] The technical scheme is as follows: a heat-insulating shell plate processing mould for tail gas catalytic converter, comprising an upper die and a lower die that cooperate with each other, characterized in that:

[0007] A embossing unit, a forming and blanking unit, and a waste material cutting unit are sequentially arranged along the conveying direction of the material belt,

[0008] The embossing unit comprises an embossing upper plate and an embossing lower plate arranged on the upper die and the lower die respectively, and the embossing upper plate and the embossing lower plate are provided with embossing protrusions corresponding to the shape of the plate, for forming concave-convex textures on the material belt;

[0009] The forming and blanking unit comprises a blanking protruding die arranged at the lower end of the upper die and a blanking recess die arranged at the upper end of the lower die, the blanking protruding die is consistent with the shape of the heat-insulating shell plate, the blanking recess die is provided with a blanking recess, and the blanking protruding die cooperates with the blanking recess to cut out the shape of the plate. The discharging plate is provided with a discharging spring, and the upper die and the lower die are further provided with a discharging rubber;

[0010] The waste material cutting unit comprises a cutting punch arranged at the lower end of the upper die, which is located at the side of the blanking recess, and the cutting punch cooperates with the blanking recess to cut the material belt.

[0011] Further, the lower end of the blanking recess is provided with a blanking chute, and the lower end of the cutting punch is provided with a waste material chute.

[0012] Further, the upper die and the lower die are guided and cooperated through guide columns and guide sleeves, and a spring is arranged between the upper die and the lower die, which is installed on a spring guide pin.

[0013] Further, the upper die comprises an upper die base, the cutting punch is fixed at the lower end of the upper die plate through a fixing block, and the lower end of the upper die base is provided with a fixing plate, and the fixing plate is provided with a clearance groove corresponding to the blanking punch, the ejection spring and the cutting punch.

[0014] Further, the upper end of the upper die base is provided with a buffer rubber, which is higher than the upper die base, so that the punch first contacts the buffer rubber.

[0015] Further, a limiting block is further arranged between the upper die and the lower die.

[0016] Further, a floating material pin is arranged on the blanking recess at the front side of the blanking recess.

[0017] Further, a material guiding pin is arranged at both sides of the embossing lower plate, and a material guiding ring is installed on the material guiding pin.

[0018] Further, the lower die comprises a lower die base, the embossing lower plate and the blanking recess are respectively fixed on the lower die base, the lower die base is provided with a blanking groove corresponding to the blanking recess, the lower die base is installed on the lower base plate through a lower cushion block, the lower base plate is used for connecting the punch, the upper end of the spring guide pin is connected to the upper die base, the lower end of the spring guide pin is installed on the lower die base through a spring cushion block, the lower end of the spring is provided with an isolation washer, and the outer diameter of the isolation washer is larger than the outer diameter of the spring.

[0019] Further, a material belt guiding device is arranged on the lower die base and located at the front side of the embossing unit, the material belt guiding device comprises a positioning block fixed on the lower die base, a pressing plate is fixed on the upper end of the positioning block through a bolt, and a washer is sleeved on the bolt to form a guiding groove between the positioning block and the pressing plate for the material belt to pass through.

[0020] Further, a forklift cushion block is arranged at both sides of the lower end of the lower die base.

[0021] The utility model discloses a heat -preserving shell board spare processing mould for tail gas catalytic converter, set up three stations on a mould, it realizes from flat material belt to tail gas catalytic converter heat -preserving shell board spare processing, wherein the first station's embossing unit forms the concave and convex texture on the material belt, the blanking punch and blanking die of the second station's forming blanking unit contact, and the blanking is completed to the plate spare that cuts out from the embossing position on the material belt, the cutting off punch and blanking die of the third station's waste material cutting unit contact cut off the waste material, and the waste material falls into the waste material sliding slot, so this can continuous production, need not manual recovery waste material and plate spare, improve production efficiency, reduce the cost of outsourcing board material. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the schematic diagram of heat -preserving shell board spare of tail gas catalytic converter for being processed to obtain;

[0023] Figure 2 It is the first perspective view of a heat -preserving shell board spare processing mould for tail gas catalytic converter in the embodiment;

[0024] Figure 3 It is the second perspective view of a heat -preserving shell board spare processing mould for tail gas catalytic converter in the embodiment;

[0025] Figure 4 It is the front view of a heat -preserving shell board spare processing mould for tail gas catalytic converter in the embodiment;

[0026] Figure 5 It is the schematic diagram of the upper die in the embodiment;

[0027] Figure 6 It is the schematic diagram of the upper die separation fixed plate after in the embodiment;

[0028] Figure 7 It is the schematic diagram of the lower die in the embodiment;

[0029] Figure 8 It is the first perspective view of a heat -preserving shell board spare processing mould for tail gas catalytic converter and punch cooperation in the embodiment;

[0030] Figure 9 It is the second perspective view of a heat -preserving shell board spare processing mould for tail gas catalytic converter and punch cooperation in the embodiment. DETAILED DESCRIPTION

[0031] See Figures 2 to 9 The utility model discloses a heat -preserving shell board spare processing mould for tail gas catalytic converter, including the upper die and lower die of mutual cooperation and closing, between upper die 100 and lower die 200, embossing unit, forming blanking unit, waste material cutting unit are set gradually along the material belt conveying direction,

[0032] The embossing unit comprises embossing upper plates 101 and embossing lower plates 201 arranged on the upper die 100 and the lower die 200 respectively, and the embossing upper plates 101 and the embossing lower plates 201 are provided with embossing convex points 102, 202 corresponding to the shapes of the plate pieces, for forming concave-convex textures on the material belt;

[0033] The forming and blanking unit comprises a blanking convex die 103 arranged at the lower end of the upper die and a blanking concave die 203 arranged at the upper end of the lower die, the blanking convex die 103 is consistent with the shape of the heat preservation shell plate piece, the blanking concave die 203 is provided with a blanking groove 204, the blanking convex die 103 cooperates with the blanking concave die 203 to cut out the shape of the plate piece, and the forming and blanking unit further comprises a discharging plate 104, the discharging plate 104 is provided with an avoiding groove corresponding to the blanking concave die 203, the discharging plate is provided with a discharging spring 105, and the upper die and the lower die are further provided with a discharging rubber 106; the forming and blanking unit realizes graded discharging through cooperation of the discharging spring 105 and the discharging rubber 106, the discharging rubber is used to meet the discharging demand when the discharging starts, the discharging spring is used to separate the waste after blanking in cooperation with the discharging plate, a discharging screw is arranged in the discharging spring, the discharging spring is prevented from being twisted and skewed, a large movement stroke is provided for the die, the two forces are superimposed, the die movement is more stable, and the cost is lower than that of a nitrogen spring, the movement and discharging functions of the long stroke of the upper die part of the die are realized, and the lower end of the blanking groove 203 is provided with a blanking chute 215, and the plate piece falls into the blanking chute 215 after blanking is completed;

[0034] The waste cutting unit comprises a cutting convex die 107 arranged at the lower end of the upper die, the cutting convex die 107 is located at the side of the blanking concave die 203, the cutting convex die 107 cooperates with the blanking concave die 203 to cut the material belt, and the lower end of the cutting convex die 107 is provided with a waste chute 205;

[0035] In the embodiment, the three stations of the embossing unit, the forming and blanking unit and the waste cutting unit are used to realize processing from the flat material belt to the heat preservation shell plate piece of the exhaust gas catalytic converter, the embossing unit at the first station performs embossing on the material belt to form concave-convex textures, which has multiple effects of enhancing the connection strength, improving the sealing performance, improving the appearance quality and adapting to complex shapes; the blanking convex die and the blanking concave die of the forming and blanking unit at the second station are in contact to cut out the plate piece from the embossed position on the material belt, the plate piece falls into the blanking chute, the blanking is completed, the waste is separated from the die through discharging of the discharging plate, the discharging spring and the discharging rubber; the cutting convex die and the blanking concave die of the waste cutting unit at the third station are in contact to cut off the waste, the waste falls into the waste chute, and the die in the embodiment only needs to purchase a flat plate to obtain the heat preservation shell plate piece of the exhaust gas catalytic converter from the flat plate, the cost of the purchased plate is reduced, the heat preservation shell plate piece and the waste are directly classified and collected, and the production efficiency is improved.

[0036] In one embodiment, the upper die and the lower die are guided by the guide pillar 108 and the guide sleeve, and the spring 109 is arranged between the upper die and the lower die, the spring 109 is installed on the spring guide pin 110, the upper die comprises an upper die seat 111, the cutting punch 107 is fixed on the lower end of the upper die seat through the fixing block 113, the lower end of the upper die seat 111 is provided with a fixed plate 112, and the fixed plate 112 is provided with a clearance groove corresponding to the blanking punch 103, the ejection spring 105 and the cutting punch 107; the upper end of the upper die seat 111 is provided with a buffer rubber 114, the buffer rubber 114 is higher than the upper die seat 111, so that the punch first contacts the buffer rubber 114, and the upper die and the lower die are further provided with a limiting block 115.

[0037] The lower die comprises a lower die seat 206, the embossing lower plate 201 and the blanking concave punch 203 are fixed on the lower die seat 206, the lower die seat 206 is provided with a blanking groove corresponding to the blanking concave punch 203, the lower die seat 206 is installed on the lower base plate 208 through the lower cushion block 207, the lower base plate 208 is used for connecting the punch, the upper end of the spring guide pin 110 is connected with the upper die seat 111, the lower end of the spring guide pin 110 is installed on the lower die seat 206 through the spring cushion block 116, the lower end of the spring is provided with an isolation washer 117, the outer diameter of the isolation washer 117 is greater than the outer diameter of the spring 109, so that the upper die and the lower die are not separated during the transfer process.

[0038] See Figure 8 、 9 Unlike the general mold installation method, the mold for processing the heat preservation shell plate of the tail gas catalytic converter in the embodiment only needs to tightly install the lower die on the pressure center of the machine tool, and the upper die does not need to be installed. The upper die part of the mold is supported by the spring 109 to float the upper die, and the guide pillar and the guide sleeve always keep together without being separated during the movement of the mold, so that the precision of the vertical movement of the mold is ensured; when the mold is unloaded, the ejection spring 105 and the ejection rubber 106 simultaneously provide the force, and the mold completes the unloading; the machine tool first contacts the buffer rubber 114 at the upper end of the upper die seat during the downward movement of the machine tool, so as to reduce the damage to the mold, the machine tool continues to move downward to complete the blanking, and the limiting block 115 avoids that the machine tool moves downward excessively during the adjustment of the mold to cause damage to the mold, and the height of the limiting block can also be referred to to improve the efficiency of adjusting the mold height of the machine tool.

[0039] When the punch has the problems of poor equipment precision such as that the surface of the lower base plate is not parallel to the slide block of the punch, the slide block of the punch does not move completely vertically, and the overall gap of the punch is large, the mold in the embodiment can offset the influence of the punch on the blanking gap by using the precision of the mold itself.

[0040] In one embodiment of the utility model, the blanking recess 203 is provided with a floating pin 209 on the front side of the blanking recess 203, the height of the floating pin 209 is higher than the blanking recess 203, the embossing lower plate 201 is provided with a guide pin 210 on both sides, the guide pin 210 is provided with a guide ring 211,

[0041] The material belt guiding device is arranged on the lower die seat and on the front side of the embossing unit, the material belt guiding device comprises a positioning block 212 fixed on the lower die seat, the upper end of the positioning block 212 is fixed with a pressing plate 213 through bolts, and the bolts are provided with gaskets so that the positioning block 212 and the pressing plate 213 form a guide groove for the material belt to pass through.

[0042] The material belt slides against the forming die and the blanking die, due to the long span and small thickness of the material belt, there is a risk that the material belt is stuck at the blade edge of the die, the floating pin 209 is arranged in the middle area of the die, the material belt floats above the die by a distance to avoid the risk of being stuck, the material belt guiding device on the front side of the embossing unit and the guide pin 210 limit the range of the material belt from leaving the guide ring height of the upper die, the material belt is in a certain area, stable feeding is realized, the material belt is floated, and the material belt is in the range of the guide ring, the risk of distortion and sticking of the material is avoided, and stable production is realized.

[0043] In the embodiment, the forklift pad 214 is arranged on both sides of the lower end of the lower die seat, the forklift needs to be inserted into the bottom of the lower die seat before the mold is transferred, the forklift pad is designed in the embodiment, the area where the guide column protrudes is protected, the damage of the forklift to the guide column is avoided, on the other hand, the forklift pad is in the balance area of the mold, the mold is prevented from falling unbalanced during the transfer process, the forklift pad is located at both ends of the mold, the mold can be forked without manual assistance, and the labor intensity of personnel is reduced.

[0044] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0045] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A mold for processing heat-insulating shell plates of exhaust gas catalysts, comprising an upper mold and a lower mold that cooperate with each other, characterized in that: Along the conveying direction of the material belt, there are embossing units, forming blanking units, and waste cutting units. The embossing unit includes an embossing upper plate and an embossing lower plate respectively provided on the upper die and the lower die, wherein the embossing upper plate and the embossing lower plate are respectively provided with embossing convex points corresponding to the shape of the plate, for forming a concave-convex texture on the material strip; The forming blanking unit includes a blanking punch provided at the lower end of the upper die and a blanking die at the upper end of the lower die, the blanking punch being consistent with the outer shape of the insulation shell plate, the blanking die being provided with a blanking groove, the blanking punch and the blanking groove cooperating to cut out the outer shape of the plate, and further including a stripper plate, the stripper plate being provided with an avoidance groove corresponding to the blanking die, the stripper plate being provided with a stripper spring, and a stripper rubber being further provided between the upper die and the lower die; The waste cutting unit includes a cutting punch arranged at the lower end of the upper die, the cutting punch is located on the side of the blanking die, and the cutting punch cooperates with the blanking die to cut the material strip.

2. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 1, characterized in that: The lower end of the blanking groove is provided with a blanking chute; the lower end of the cutting punch is provided with a waste chute.

3. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 1, characterized in that: The upper die and the lower die are guided and matched by a guide column and a guide sleeve. A spring is provided between the upper die and the lower die, and the spring is installed on a spring guide pin.

4. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 3, characterized in that: The upper die includes an upper die base, the cutting punch is fixed to the lower end of the upper die plate through a fixing block, a fixing plate is provided at the lower end of the upper die base, and a clearance groove is provided on the fixing plate corresponding to the blanking punch, the unloading spring and the cutting punch.

5. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 4, characterized in that: A buffer rubber is provided at the upper end of the upper die base, and the buffer rubber is provided higher than the upper die base so that the punch press contacts the buffer rubber first. A limit block is also provided between the upper die and the lower die.

6. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 1, characterized in that: A floating pin is provided on the blanking die at the front side of the blanking groove, and the height of the floating pin is higher than the blanking groove.

7. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 1, characterized in that: Material guide pins are arranged on both sides of the embossing lower plate, and material guide rings are installed on the material guide pins.

8. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 3, characterized in that: The lower die includes a lower die base, the embossing lower plate and the blanking die are respectively fixed on the lower die base, the lower die base is provided with a blanking groove corresponding to the blanking die, the lower die base is installed on the lower pad through a lower pad, the lower pad is used to connect the punch press, the upper end of the spring guide pin is connected to the upper die base, the lower end of the spring guide pin is installed on the lower die base through a spring pad, the lower end of the spring is provided with an isolation washer, and the outer diameter of the isolation washer is larger than the outer diameter of the spring.

9. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 8, characterized in that: A material strip guiding device is provided on the lower die base and in front of the embossing unit. The material strip guiding device includes a positioning block fixed on the lower die base. A pressure plate is fixed to the upper end of the positioning block by a bolt. A gasket is mounted on the bolt so that a guide groove for the material strip to pass through is formed between the positioning block and the pressure plate.

10. The heat-insulating shell plate processing mold for an exhaust gas catalyst according to claim 8, characterized in that: Forklift pads are respectively arranged on both sides of the lower end of the lower die base.

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