A heat shield folding packaging mold and folding packaging process thereof

Abstract

The present invention relates to a heat shield folding packaging mold and a packaging process thereof, and belongs to the technical field of automobile exhaust system heat shield packaging. The heat shield folding packaging mold of the present invention comprises an upper mold base plate, a left scraper mechanism, a left lower scraper mold, a lower mold base plate, a lower mold, a right lower scraper mold, a right scraper mechanism, an upper outer mold, and an upper inner mold; when the folding packaging mold of the present invention is used for packaging, the packaging can be completed by only folding the sides of the upper and lower plates of the heat shield three times, which greatly improves the packaging efficiency and reduces the packaging cost, and the present invention realizes the packaging of ultra-thin stainless steel plates with a thickness of 0.15 mm, and the heat shield after packaging will fit tightly and completely wrap the catalytic converter without falling off, thereby improving the heat insulation effect of the heat shield and meeting the working environment requirements of the National VI converter.

Description

Technical Field

[0001] The invention relates to a heat shield folding packaging mould and a packaging process thereof, belonging to the technical field of automobile exhaust system heat shield packaging. Background Art

[0002] With the promotion of National VI products, the position of the three-way catalytic converter of the automobile exhaust system has to be moved forward to the position of the engine exhaust port. How to effectively package the catalytic converter has become one of the research hotspots. The traditional heat shield packaging process is to weld or bolt the heat shield to the catalytic converter. This method is suitable for traditional heat shields, but traditional heat shields have thick plates, poor insulation effect, high cost, and large installation space. They cannot meet the requirements of the National VI converter using 0.15mm plates for packaging and working environments of 800-1000℃.

[0003] The utility model patent with Chinese patent announcement number CN 209613892U discloses a heat insulation hood skirt folding mold, including an upper mold assembly and a lower mold assembly, the upper mold assembly is located above the lower mold assembly, the upper mold assembly and the lower mold assembly are connected by a lifting rod, the upper mold assembly includes an upper mold plate, a mounting seat and a first inclined guide column fixed to the lower bottom surface of the upper mold plate, the mounting seat is fixed to the lower bottom surface of the upper mold plate by bolts, a pressure block is installed at the lower end of the mounting seat, the lower mold assembly includes a lower mold plate and a fixed seat fixed to the upper surface of the lower mold plate, a positioning block and a second inclined guide column are provided on the fixed seat, a mounting hole is opened on the fixed seat, a stripping rod that can be telescoped up and down is installed in the mounting hole, a piston is fixed to the bottom end of the stripping rod, a spring is sleeved on the piston, the lower end of the spring is against the bottom of the mounting hole, and the upper end of the spring is against the piston. During packaging, the heat shield that needs to be folded is placed in the mold. When the upper mold assembly moves downward a certain distance, the pressure block drives the heat shield and the stripper rod to move downward together. The skirt of the heat shield and the second inclined guide column generate a force to bend to 90 degrees. When the upper mold assembly continues to move downward a certain distance, the first inclined guide column drives the second inclined guide column to move, and folds the skirt of the heat shield to 180 degrees. Then, when the upper mold assembly returns to the highest point, the spring in the fixed seat pushes the piston to reset the stripper rod. Although the mold and packaging method of the utility model realize the welding without hanging parts and reduce the packaging cost, the utility model folds the two plates of the heat shield separately to fit the catalytic converter, such as Figure 1 As shown, in this way, there will be a gap between the two plates, that is, the heat shield does not completely wrap the catalytic converter, resulting in poor heat insulation effect; in addition, when the skirt of a single plate of the heat shield is folded to 180 degrees, the heat shield is often easy to fall off due to insufficient fit with the catalytic converter.

[0004] Therefore, it is necessary to provide a heat shield folding packaging mold and a folding packaging process thereof through research and improvement to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a heat insulation cover folding packaging mold and a folding packaging process thereof, by folding and packaging two plates of the heat insulation cover three times, the heat insulation cover is attached and wrapped on the surface of the catalytic converter, thereby improving the heat insulation effect of the heat insulation cover while improving the processing efficiency and reducing the processing cost, thereby meeting the working environment requirements of the National VI converter.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A first aspect of the present invention provides a heat shield folding packaging mold, comprising an upper mold base plate, a left scraper mechanism, a left lower scraper mold, a lower mold base plate, a lower mold, a right lower scraper mold, a right scraper mechanism, an upper outer mold, and an upper inner mold;

[0008] Wherein, the upper part, the lower part and both sides of the heat shield folding packaging mold are provided with cylinders;

[0009] The upper mold bottom plate is fixedly connected to the cylinder located at the upper part, an upper outer mold is arranged on the lower surface of the upper mold bottom plate, and an upper inner mold is elastically connected to the inner side of the upper outer mold;

[0010] A lower mold bottom plate is provided on a workbench directly below the upper mold bottom plate;

[0011] A lower mold is fixed on the upper surface of the lower mold bottom plate;

[0012] On the upper surface of the bottom plate of the lower mold, located on the left and right sides of the lower mold, a left lower scraper mold and a right lower scraper mold are respectively provided, and the left lower scraper mold and the right lower scraper mold are both fixedly connected to the cylinder located at the lower part;

[0013] On the upper surface of the lower mold bottom plate, located on the left side of the left lower blade mold and on the right side of the right lower blade mold, a left blade platform and a right blade platform are respectively provided, and slide rails are provided on the left blade platform and the right blade platform, and a left blade mechanism and a right blade mechanism are respectively fixedly connected to the cylinders located on both sides.

[0014] Furthermore, the upper mold base plate, the upper outer mold and the upper inner mold move up and down in a movement direction controlled by a cylinder located at the upper portion.

[0015] Furthermore, the lower mold is arranged directly below the upper outer mold and matches the structure of the upper outer mold.

[0016] Furthermore, the lower left scraper mold and the lower right scraper mold move up and down in the direction of movement controlled by the cylinder located at the bottom.

[0017] Furthermore, the left scraper mechanism and the right scraper mechanism move left and right respectively in the movement directions controlled by the cylinders located on both sides.

[0018] Furthermore, the height from the lower bottom surface of the left scraper mechanism and the right scraper mechanism to the upper surface of the bottom plate of the lower mold is consistent with the height from the upper end of the lower mold to the upper surface of the bottom plate of the lower mold.

[0019] A second aspect of the present invention provides a heat shield folding packaging process, wherein the folding packaging process uses the folding packaging mold to perform three folding packaging on two plates of the heat shield, and the specific steps include:

[0020] S1, first folding

[0021] The lower plate of the heat shield, the catalytic converter, and the upper plate of the heat shield are placed in the inner cavity of the lower mold in order from bottom to top. Under the push of the cylinder located at the top, the upper outer mold and the lower mold are closed so that the side edges of the upper and lower plates of the heat shield overlap each other. Then, the cylinders located at both sides are controlled to drive the left scraper mechanism and the right scraper mechanism to move inward at the same time, flatten the side edges of the upper and lower plates of the heat shield, and then return at the same time. At the same time, under the drive of the cylinder located at the top, the upper mold bottom plate drives the upper outer mold to move upward, and the left scraper mechanism and the right scraper mechanism are driven by the cylinders located at both sides to move inward at the same time to fold the side edges of the upper and lower plates of the heat shield to 90 degrees, completing the first folding, and then return after folding.

[0022] S2, second folding

[0023] Driven by the cylinder located at the top, the upper mold bottom plate drives the upper outer mold to move downward to press the heat shield, and then driven by the cylinder located at the bottom, the lower left scraper mold and the lower right scraper mold move upward at the same time to fold the side edges of the upper and lower plates of the heat shield to 180 degrees, completing the second folding, and then returning after folding;

[0024] S3, the third folding

[0025] Driven by the cylinder located at the top, the upper mold bottom plate drives the upper outer mold and the upper inner mold to move upward and leave the heat insulation cover. Then, driven by the cylinders located on both sides, the left scraper mechanism and the right scraper mechanism move inward at the same time to bend the side edges of the upper and lower plates of the heat insulation cover inward. After completing the third folding, it returns and takes out the workpiece.

[0026] Furthermore, the thickness of the upper and lower plates of the heat insulation cover is 0.15 mm.

[0027] The advantages and beneficial effects of the present invention compared to the prior art are:

[0028] 1. The present invention can fold and package the two plates of the heat shield at the same time, which greatly improves the processing efficiency and reduces the processing cost;

[0029] 2. The present invention can process a stainless steel plate with a thickness of 0.15 mm, and the packaging mold and process of the present invention can be used to tightly fit the heat shield and completely wrap the catalytic converter, thereby improving the heat insulation effect of the heat shield and meeting the working environment requirements of the National VI converter;

[0030] 3. The three-fold folding process of the present invention enables the two plates of the heat insulation cover to be firmly combined together during use and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram showing the effect of folding the two plates of the heat shield separately in the existing packaging process;

[0032] Figure 2 It is a schematic diagram of the main structure of a heat shield folding packaging mold of the present invention;

[0033] Figure 3 This is a schematic diagram of a state in which the left scraper mechanism and the right scraper mechanism simultaneously move inwards in step S1 of an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of a state in which the upper mold bottom plate drives the upper outer mold to move upward, and the left scraper mechanism and the right scraper mechanism move inward at the same time in step S1 of an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the first folding process of an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of a state in which the upper mold bottom plate drives the upper outer mold to move downward, and the lower left scraper mold and the lower right scraper mold move upward at the same time in step S2 of an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the second folding process of an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the motion state in which the upper mold bottom plate drives the upper outer mold and the upper inner mold to move upward, and the left scraper mechanism and the right scraper mechanism move inward at the same time in step S3 of the embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the third folding process of an embodiment of the present invention;

[0040] Figure numerals: upper mold base plate 1, left scraper mechanism 2, lower left scraper mold 3, lower mold base plate 4, lower mold 5, lower right scraper mold 6, right scraper mechanism 7, upper outer mold 8, upper inner mold 9, upper plate 10, lower plate 11. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail below in conjunction with embodiments and drawings.

[0042] like Figure 2 As shown, a heat shield folding packaging mold includes an upper mold base plate 1, a left scraper mechanism 2, a left lower scraper mold 3, a lower mold base plate 4, a lower mold 5, a right lower scraper mold 6, a right scraper mechanism 7, an upper outer mold 8, and an upper inner mold 9; cylinders are provided on the upper part, the lower part and both sides of the heat shield folding packaging mold.

[0043] Among them, the upper mold base plate 1 is fixedly connected to the cylinder located at the top, and an upper outer mold 9 is provided on the lower surface of the upper mold base plate 1. The inner side of the upper outer mold 9 is elastically connected to an upper inner mold 9. The upper mold base plate 1, the upper outer mold 8 and the upper inner mold 9 move up and down in the movement direction controlled by the cylinder located at the top.

[0044] A lower mold base plate 4 is provided on a workbench directly below the upper mold base plate 1 ; a lower mold 5 is fixed to the upper surface of the lower mold base plate 4 , and the lower mold 5 is provided directly below the upper outer mold 8 and matches the structure of the upper outer mold 8 .

[0045] On the upper surface of the lower mold base plate 4, located on the left and right sides of the lower mold 5, a lower left scraper mold 3 and a lower right scraper mold 6 are respectively provided. The lower left scraper mold 3 and the lower right scraper mold 6 are both fixedly connected to the cylinder located at the bottom, and move up and down with the movement direction controlled by the lower cylinder.

[0046] On the upper surface of the lower mold base plate 4, located on the left side of the lower left blade mold 3 and on the right side of the lower right blade mold 6, a left blade platform and a right blade platform are respectively provided, and slide rails are provided on the left blade platform and the right blade platform, and a left blade mechanism 2 and a right blade mechanism 7 are respectively provided on the corresponding slide rails. The left blade mechanism 2 and the right blade mechanism 7 are respectively fixedly connected to the cylinders located on both sides, and move left and right with the movement direction controlled by the cylinders on both sides.

[0047] Furthermore, the cylinder may be a hydraulic cylinder or a pneumatic cylinder to meet corresponding power requirements.

[0048] Furthermore, the height from the lower bottom surface of the left scraper mechanism 2 and the right scraper mechanism 7 to the upper surface of the lower mold bottom plate 4 is consistent with the height from the upper end of the lower mold 5 to the upper surface of the lower mold bottom plate 4 .

[0049] The hem-folding packaging mold of the present invention performs three hem-folding packaging on the upper and lower 0.15 mm plates of the heat shield, and the specific steps include:

[0050] S1, first folding

[0051] like Figure 3-5 As shown, the lower plate 11 of the heat shield, the catalytic converter, and the upper plate 10 of the heat shield are placed in the inner cavity of the lower mold 5 in sequence from bottom to top, and the upper outer mold 8 and the lower mold 5 are closed under the push of the cylinder located at the top, so that the side edges of the upper and lower plates of the heat shield overlap, and then the cylinders located at both sides are controlled to drive the left scraper mechanism 2 and the right scraper mechanism 7 to move inward at the same time, flatten the side edges of the upper and lower plates of the heat shield and then return at the same time; at the same time, driven by the cylinder located at the top, the upper mold bottom plate 1 drives the upper outer mold 8 to move upward, and the left scraper mechanism 2 and the right scraper mechanism 7 are driven by the cylinders on both sides to move inward at the same time to fold the side edges of the upper and lower plates of the heat shield to 90 degrees, completing the first folding, and then return after folding;

[0052] S2, second folding

[0053] like Figure 6-7 As shown, driven by the cylinder located at the top, the upper mold bottom plate 1 drives the upper outer mold 8 to move downward to press the heat shield, and then driven by the cylinder located at the bottom, the lower left scraper mold 3 and the lower right scraper mold 6 move upward at the same time to fold the side edges of the upper and lower plates of the heat shield to 180 degrees, completing the second folding, and then retreating after folding;

[0054] S2, the third folding

[0055] like Figure 8-9 As shown, driven by the cylinder located at the top, the upper mold base plate 1 drives the upper outer mold 8 and the upper inner mold 9 to move upward and leave the heat insulation cover. Then, driven by the cylinders located on both sides, the left scraper mechanism 2 and the right scraper mechanism 7 move inward at the same time to make the side edges of the upper and lower plates of the heat insulation cover bend inward to prevent the heat insulation cover from falling off during use. After the third folding is completed, the left scraper mechanism 2 and the right scraper mechanism 7 are retracted and the workpiece is taken out.

[0056] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A heat shield folding packaging mold, characterized in that: It includes an upper mold base plate, a left scraper mechanism, a left lower scraper mold, a lower mold base plate, a lower mold, a right lower scraper mold, a right scraper mechanism, an upper outer mold, and an upper inner mold; Wherein, the upper part, the lower part and both sides of the heat shield folding packaging mold are provided with cylinders; The upper mold bottom plate is fixedly connected to the cylinder located at the upper part, an upper outer mold is arranged on the lower surface of the upper mold bottom plate, and an upper inner mold is elastically connected to the inner side of the upper outer mold; A lower mold bottom plate is provided on a workbench directly below the upper mold bottom plate; A lower mold is fixed on the upper surface of the lower mold bottom plate; On the upper surface of the bottom plate of the lower mold, located on the left and right sides of the lower mold, a left lower scraper mold and a right lower scraper mold are respectively provided, and the left lower scraper mold and the right lower scraper mold are both fixedly connected to the cylinder located at the lower part; On the upper surface of the lower mold bottom plate, located on the left side of the left lower blade mold and on the right side of the right lower blade mold, a left blade platform and a right blade platform are respectively provided, and slide rails are provided on the left blade platform and the right blade platform, and a left blade mechanism and a right blade mechanism are respectively fixedly connected to the cylinders located on both sides.

2. A heat shield folding packaging mold according to claim 1, characterized in that: The upper mold bottom plate, the upper outer mold and the upper inner mold move up and down in the direction of movement controlled by the cylinder located at the upper part.

3. The heat shield folding packaging mold according to claim 1, characterized in that: The lower mold is arranged directly below the upper outer mold and matches the structure of the upper outer mold.

4. The heat shield folding packaging mold according to claim 1, characterized in that: The lower left scraper mold and the lower right scraper mold move up and down in the direction of movement controlled by the cylinder located at the lower part.

5. The heat shield folding packaging mold according to claim 1, characterized in that: The left scraper mechanism and the right scraper mechanism respectively move left and right in the direction of movement controlled by the cylinders located on both sides.

6. The heat shield folding packaging mold according to claim 5, characterized in that: The height from the lower bottom surface of the left scraper mechanism and the right scraper mechanism to the upper surface of the bottom plate of the lower mold is consistent with the height from the upper end of the lower mold to the upper surface of the bottom plate of the lower mold.

7. A heat shield folding packaging process, characterized in that: The folding packaging process adopts a heat shield folding packaging mold as described in any one of claims 1 to 6, and the packaging is completed by folding the side edges of the upper and lower plates of the heat shield three times.

8. A heat shield folding packaging process as claimed in claim 7, characterized in that the step include: S1, first folding The lower plate of the heat shield, the catalytic converter, and the upper plate of the heat shield are placed in the inner cavity of the lower mold in order from bottom to top, and the upper outer mold and the lower mold are closed, and then the left scraper mechanism and the right scraper mechanism move inward at the same time to push the side edges of the upper and lower plates of the heat shield flat and then return at the same time; at the same time, the upper mold bottom plate drives the upper outer mold to move upward, and the left scraper mechanism and the right scraper mechanism move inward at the same time to fold the side edges of the upper and lower plates of the heat shield to 90 degrees, completing the first folding, and then return after folding; S2, second folding The upper mold bottom plate drives the upper outer mold to move downward to press the heat shield, and then the lower left scraper mold and the lower right scraper mold move upward at the same time to fold the side edges of the upper and lower plates of the heat shield to 180 degrees, completing the second folding, and then returning; S3, the third folding The upper mold bottom plate drives the upper outer mold and the upper inner mold to move upward and leave the heat insulation cover, and then the left scraper mechanism and the right scraper mechanism move inward at the same time to bend the side edges of the upper and lower plates of the heat insulation cover inward, and return after completing the third folding to take out the workpiece.

9. A heat shield folding packaging process as claimed in claim 8, characterized in that: The thickness of the upper and lower plates of the heat insulation cover is 0.15 mm.

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