Oven boss mold with guiding and positioning structure
By introducing a guide positioning structure into the oven mold, rapid positioning of the plate and diversified boss forming are achieved, the problems of mold cracking and high cost are solved, and the forming effect is improved.
Patent Information
- Application Number
- CN202422036350.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-21
AI Technical Summary
Existing oven molds are prone to cracking when stamping to form convex hulls and round holes, and two molds are required to complete the processing of different convex hulls, resulting in high costs.
An oven boss mold with a guide positioning structure is designed. By setting a molding mould and moving positioning block on the lower mold top plate, combined with the sliding and positioning pins of the upper and lower molds, the rapid positioning of the plate and diversified boss molding are achieved.
It improves the diversity and molding effect of the mold, avoids cracking of the boss, and reduces the cost of mold use.
Smart Images
Figure CN223113964U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, in particular to an oven boss mold with a guiding and positioning structure. Background Art
[0002] When some ovens are produced and processed, bosses and round holes need to be stamped on the lower part thereof. Usually, the bosses are first stamped on the plate, and then the round holes are punched on the bosses. Since the plate is generally selected as the h38 model with relatively high strength, the raised part is easy to crack during the stamping process, resulting in stamping failure. And generally, the position of the boss on the upper part of the current mold is fixed, while there are two different bosses on some ovens, and two molds are required for stamping, resulting in high costs. For this reason, we have designed an oven boss mold with a guiding and positioning structure. Summary of the Utility Model
[0003] In order to solve the technical problem that there are two different bosses on some ovens and two molds are required for stamping, the utility model provides an oven boss mold with a guiding and positioning structure.
[0004] The utility model is realized by adopting the following technical solutions: an oven boss mold with a guiding and positioning structure, including a lower template, an upper die fixing plate is installed above the lower template, an upper die ejector plate is slidably arranged up and down above the upper die fixing plate, four through holes are formed at the corners of the upper die ejector plate and extend downward through the lower template, and forming punches are sleeved in the through holes;
[0005] Longitudinally distributed moving grooves are formed on the upper die ejector plate, a moving positioning block is movably arranged back and forth in the moving grooves, and a positioning pin is arranged on the moving positioning block;
[0006] Guide columns are fixed at both left and right ends of the lower template, guide sleeves are slidably sleeved at the tops of the guide columns, an upper template is fixed above the guide sleeves, an upper die fixing plate is installed below the upper template, four equal-height blocks are fixed below the upper die fixing plate, a stripping plate is installed at the lower ends of the equal-height blocks, four forming concave dies are formed with depressions on the stripping plate, a round hole is formed upward through the center of the forming concave die, and an upper punch is arranged in the round hole.
[0007] As a further improvement of the above solution, the equal-height blocks are designed with through holes up and down, and the top end of the upper punch is placed in the equal-height blocks and connected with the upper die fixing plate;
[0008] A die handle is fixed at the center of the top of the upper template by screws, and the die handle is used to connect with a lifting mechanism so that the upper template can move up and down to form the oven boss.
[0009] As a further improvement of the above solution, cavities are formed through the upper and lower ends of the forming punch, and the bottom end of the cavity is communicated with the outside. Before the boss is formed, punching will be carried out first, and the scrap punched down will be discharged through the cavity.
[0010] As a further improvement of the above solution, the distance between the two forming punches on the front side is smaller than the distance between the two forming punches on the rear side, and the four forming dies are respectively located directly above the four forming punches. This mold is suitable for forming bosses of two different sizes, enabling a mold to have two uses and improving diversity.
[0011] As a further improvement of the above solution, a moving bar is fixed in the moving groove by screws. A plurality of uniformly distributed positioning holes are formed in the moving bar. A protrusion is arranged below the moving positioning block, and the protrusion is inserted into the positioning hole. A positioning pin is threadedly arranged above the moving positioning block, which can change the position of the moving positioning block as needed, so that the positioning pin is in a suitable position, and then the workpiece can be quickly positioned. It is applicable to workpieces of various different sizes.
[0012] As a further improvement of the above solution, a strip-shaped groove is formed on the lower end surface of the stripper plate. The strip-shaped groove is directly above the moving groove, and their shapes and sizes are the same. The positioning pin and the moving positioning block can be located in the strip-shaped groove, so as not to collide with the lower die ejector plate.
[0013] As a further improvement of the above solution, a plurality of embedding grooves are formed below the lower die fixing plate. Lifting spring columns are arranged in the embedding grooves. The upper ends of the lifting spring columns are embedded into the lower die ejector plate. The upper surface of the lower die ejector plate is flush with the upper surface of the forming punch at the initial time. During stamping, it will move downward, so as to form the oven boss.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. In the present utility model, a forming die is arranged on the stripper plate, and an upper punch is arranged in the forming die. A lower die ejector plate is arranged below the stripper plate, and a forming punch corresponding to the forming die is arranged on the lower die ejector plate. It can first punch the oven and then stretch to form a boss, so that the boss has a certain extension, and the boss and the bending part will not crack, ensuring the forming effect.
[0016] 2. By arranging two groups of different forming punches before and after the lower die ejector plate, and a moving positioning block and a positioning pin are slidably arranged before and after above it, the end to be formed can be quickly positioned, and it can also be quickly positioned when positioning the other end, enabling a mold of one model to have two different boss structures. Description of the Drawings
[0017] Figure 1 Schematic diagram of the overall structure of a baking oven boss mold with a guiding and positioning structure provided by the present utility model;
[0018] Figure 2 For Figure 1 Bottom schematic diagram of the stripper plate;
[0019] Figure 3 For Figure 1 Top view of the lower template and the lower mold ejector plate in the middle;
[0020] Figure 4 Top view of the lower mold fixing plate;
[0021] Figure 5 Schematic diagram of the structure of the baking oven boss.
[0022] Main symbol description:
[0023] 1. Die handle; 2. Upper template; 3. Upper mold fixing plate; 4. Stripper plate; 5. Lower mold ejector plate; 6. Lower template; 7. Guide pillar; 8. Upper punch; 9. Forming female die; 10. Forming male die; 11. Equal height block; 12. Lower mold fixing plate; 13. Guide sleeve; 14. Moving positioning block; 15. Positioning pin; 16. Moving bar; 17. Lifting spring column; 18. Perforation. Specific implementation mode
[0024] Next, in combination with the accompanying drawings and specific implementation modes, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.
[0025] Embodiment:
[0026] Please combine Figures 1-4 , A baking oven boss mold with a guiding and positioning structure in this embodiment includes a lower template 6. An upper lower mold fixing plate 12 is installed above the lower template 6. A lower mold ejector plate 5 is slidably arranged up and down above the lower mold fixing plate 12. Four perforations 18 are opened at the corners of the lower mold ejector plate 5, and the perforations 18 extend downward through the lower template 6. A forming male die 10 is sleeved in the perforations 18, and the forming male die 10 is distributed along the position of the baking oven convex package;
[0027] A longitudinally distributed moving groove is opened on the lower mold ejector plate 5. A moving positioning block 14 is arranged to move back and forth in the moving groove, and a positioning pin 15 is arranged on the moving positioning block 14;
[0028] At both the left and right ends of the lower template 6, guide posts 7 are fixed. At the top of the guide posts 7, guide sleeves 13 are sleeved and slide up and down. Above the guide sleeves 13, an upper template 2 is fixed. Below the upper template 2, an upper die fixing plate 3 is installed. Below the upper die fixing plate 3, four equal-height blocks 11 are fixed. At the lower ends of the equal-height blocks 11, a stripper plate 4 is installed. On the stripper plate 4, four forming female dies 9 are formed by depressions. At the center of the forming female die 9, a round hole is formed and penetrates upward. In the round hole, an upper punch 8 is arranged.
[0029] The equal-height block 11 is designed to penetrate up and down. The top end of the upper punch 8 is placed inside the equal-height block 11 and is connected to the upper die fixing plate 3.
[0030] At the center of the top of the upper template 2, a die handle 1 is fixed by screws. The die handle 1 is used to connect to the lifting mechanism, so that the upper template 2 can move up and down, thereby forming the oven boss.
[0031] The forming male die 10 has cavities formed through its upper and lower ends, and the bottom end of the cavity is connected to the outside. Before the boss is formed, punching will be carried out first, and the scrap punched down will be discharged through the cavity.
[0032] The distance between the two forming male dies 10 on the front side is less than the distance between the two forming male dies 10 on the rear side, and the four forming female dies 9 are respectively directly above the four forming male dies 10. This mold is suitable for forming bosses of two different sizes, enabling a mold to have two uses and improving diversity.
[0033] A moving bar 16 is fixed in the moving groove by screws. A plurality of uniformly distributed positioning holes are formed in the moving bar 16. Below the moving positioning block 14, there is a protrusion, and the protrusion is inserted into the positioning hole. Above the moving positioning block 14, a positioning pin 15 is arranged in a threaded manner, which can change the position of the moving positioning block 14 according to needs, so that the positioning pin 15 is in a suitable position, and then the workpiece can be quickly positioned. It is suitable for workpieces of various different sizes.
[0034] On the lower end surface of the stripper plate 4, a strip-shaped groove is formed. The strip-shaped groove is directly above the moving groove, and their shapes and sizes are the same. The positioning pin 15 and the moving positioning block 14 can be in the strip-shaped groove, so as not to collide with the lower die ejector plate 5.
[0035] Below the lower die fixing plate 12, a plurality of embedding grooves are formed. In the embedding grooves, jacking spring columns 17 are arranged. The upper ends of the jacking spring columns 17 are embedded into the lower die ejector plate 5. Initially, the upper surface of the lower die ejector plate 5 is flush with the upper surface of the forming male die 10. During stamping, it will move downward, so that the oven boss is formed.
[0036] In the embodiment of the present application, the implementation principle of an oven boss mold with a guiding and positioning structure is as follows: change the position of the movable positioning block 14 as needed so that the distance between the front surface of the positioning pin 15 and the forming punch 10 is the distance between the edge of one side of the oven and the boss. Then, place the sheet from front to back above the lower die ejector plate 5 and make its rear side contact the positioning pin 15. Then, the upper template 2 moves downward under the action of the lifting mechanism. Since the upper surface of the lower die ejector plate 5 is flush with the upper surface of the forming punch 10 initially, it will move downward during stamping. At this time, the lower surface of the upper punch 8 will first contact the sheet and punch a round hole in it. Then, the forming die cavity 9 and the forming punch 10 will form the oven boss. When forming another boss at the other end, perform the same operation as above, that is, adjust the direction of the mold and re-change the position of the positioning pin 15 for positioning. And first punch a hole and then perform convex stretching forming to make the boss have a certain extension, so that the boss and the bending part will not crack;
[0037] By arranging a forming die cavity 9 on the stripper plate 4, and arranging an upper punch 8 inside the forming die cavity 9, arranging a lower die ejector plate 5 below the stripper plate 4, and arranging a forming punch 10 corresponding to the forming die cavity 9 on the lower die ejector plate 5, it can first punch the oven and then stretch to form a boss, so that the boss has a certain extension and the boss and the bending part will not crack, ensuring the forming effect;
[0038] By arranging two groups of different forming punches 10 before and after the lower die ejector plate 5, and arranging a movable positioning block 14 and a positioning pin 15 to slide back and forth above it, it can quickly position one end to be formed, and can also quickly position when positioning the other end, so that a mold of one type has two different boss structures.
[0039] The above-mentioned implementation manners are only the preferred implementation manners of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.
Claims
1. A baking oven boss mold with a guiding and positioning structure, comprising a lower template (6), characterized in that, Above the lower template (6), a lower die fixing plate (12) is installed. Above the lower die fixing plate (12), a lower die ejector plate (5) is slidably arranged up and down. At the corners of the lower die ejector plate (5), four through holes (18) are opened, and the through holes (18) extend downward through the lower template (6). A forming punch (10) is sleeved in the through holes (18). On the lower die ejector plate (5), longitudinally distributed moving grooves are opened. In the moving grooves, a moving positioning block (14) is movably arranged back and forth. A positioning pin (15) is arranged on the moving positioning block (14). Guide columns (7) are fixed at both the left and right ends of the lower template (6). The top ends of the guide columns (7) are slidably sleeved with guide sleeves (13). Above the guide sleeves (13), an upper template (2) is fixed. Below the upper template (2), an upper die fixing plate (3) is installed. Four equal-height blocks (11) are fixed below the upper die fixing plate (3). A stripping plate (4) is installed at the lower ends of the equal-height blocks (11). Four forming female dies (9) are formed by depressions on the stripping plate (4). A round hole is formed by penetrating upward at the center of the forming female die (9). An upper punch (8) is arranged in the round hole.
2. The oven boss mold with a guiding and positioning structure according to claim 1, characterized in that, The equal-height blocks (11) are designed with through holes up and down. The top end of the upper punch (8) is placed in the equal-height blocks (11) and connected to the upper die fixing plate (3). A die handle (1) is fixed by screws at the center of the top of the upper template (2).
3. The oven boss mold with a guiding and positioning structure according to claim 1, characterized in that The upper and lower ends of the forming punch (10) are formed with cavities, and the bottom end of the cavity is communicated with the outside.
4. The oven boss mold with a guiding and positioning structure according to claim 3, characterized in that, The distance between the two front forming punches (10) is smaller than the distance between the two rear forming punches (10), and the four forming female dies (9) are respectively located directly above the four forming punches (10).
5. The oven boss mold with a guiding and positioning structure according to claim 1, characterized in that A moving bar (16) is fixed in the moving groove by screws, and a plurality of uniformly distributed positioning holes are opened on the moving bar (16). A protrusion is arranged below the moving positioning block (14), and the protrusion is inserted into the positioning holes. A positioning pin (15) is arranged above the moving positioning block (14) in a threaded manner.
6. The oven boss mold with a guiding and positioning structure according to claim 5, characterized in that, A strip-shaped groove is opened on the lower surface of the stripping plate (4). The strip-shaped groove is directly above the moving groove, and their shapes and sizes are the same.
7. The oven boss mold with a guiding and positioning structure according to claim 1, characterized in that, A plurality of embedding grooves are opened below the lower die fixing plate (12). Lifting spring columns (17) are arranged in the embedding grooves, and the upper ends of the lifting spring columns (17) are embedded into the lower die ejector plate (5).