Commercial vehicle parking enhanced diaphragm production device and process

Abstract

The present invention discloses a production device and process for a parking enhanced diaphragm for commercial vehicles, and relates to the technical field of diaphragm production. The present invention comprises a lower mold and an upper mold, the top of the lower mold is provided with a lower mold cavity, the top of the lower mold cavity is provided with a dividing groove, the dividing groove is inclined away from the side of the lower mold cavity, the interior of the lower mold is provided with a cooling hole, the top of the lower mold cavity is provided with a step, the inner side of the step is provided with a plurality of groups of air holes in an annular shape, the bottom of the upper mold is provided with an upper punch, the interior of the upper mold is provided with a knife groove, the interior of the knife groove is slidably connected with a cutting ring knife, the bottom of the upper mold is provided with a plurality of groups of sliding holes in an annular shape, the interior of the sliding hole is bonded with a top bag, and the bottom of the top bag is bonded with a material discharge top column. The present invention utilizes the cooperation of the lower mold, the upper mold, the cutting ring knife and the air holes to simultaneously complete shaping, eliminate bubbles and quickly demould, and can greatly simplify the process and improve production quality at a very low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of diaphragm production, and in particular to a production device and process for a parking-enhanced diaphragm for commercial vehicles. Background Art

[0002] Parking diaphragms are mainly used to isolate noise, vibration and heat when the car is parked. They are usually installed in the wheel arch, engine compartment or bottom of the car, and the shapes may include flat, curved or customized to adapt to different body structures. Such diaphragms can effectively reduce the external noise entering the car and improve the riding comfort. Therefore, it is particularly important for commercial vehicles. The current production process of parking diaphragms mainly includes: material selection, ingredients and mixing, molding, vulcanization, cooling and finishing, quality inspection, packaging and storage.

[0003] At present, the vulcanized parking diaphragm is prone to burrs, and thinner excess materials are easily produced on the edges, which requires the use of trimming equipment for subsequent trimming before use. The trimming process has high requirements on the positioning accuracy of the trimming mold and the parking diaphragm. In the actual operation process, errors are easy to occur, which not only increases the production process of the parking diaphragm, but also easily affects the production accuracy of the diaphragm. At the same time, in the actual vulcanization process, uneven mixing of raw materials, incomplete removal of gas in the material, too high or too low vulcanization temperature, uneven pressure, etc., are all likely to cause bubbles in the vulcanized parking diaphragm, unstable vulcanization quality, and cross-linking reaction of the parking diaphragm during vulcanization, which will lead to strong adhesion and make demolding more difficult. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and provide a production device and process for a parking enhancement diaphragm for commercial vehicles.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A commercial vehicle parking enhanced diaphragm production device comprises a lower mold and an upper mold, wherein a lower mold cavity is provided at the top of the lower mold cavity, a dividing groove is provided at the top of the lower mold cavity, the dividing groove is inclined away from the side of the lower mold cavity, a cooling hole is provided inside the lower mold, a step is provided at the top of the lower mold cavity, a plurality of groups of air holes are provided in a ring shape on the inner side of the step, and the air holes penetrate to the bottom of the lower mold;

[0007] An upper punch is provided at the bottom of the upper mold, a knife groove is opened inside the upper mold, a cutting ring knife is slidably connected inside the knife groove, and the cutting ring knife can be lifted and lowered along the knife groove, a plurality of sliding holes are opened in a ring shape at the bottom of the upper mold, a top bag is bonded inside the sliding hole, a material discharge push column is bonded at the bottom of the top bag, and the material discharge push column is slidably connected in the sliding hole.

[0008] Furthermore, the upper punch and the upper die are designed to be separated, and the knife groove is arranged between the upper punch and the upper die, and the upper punch and the upper die are fixedly connected together through a sealing ring plate.

[0009] Furthermore, a mounting plate is welded to the top of the upper mold, a connecting piece is fixedly installed on the bottom of the mounting plate, a lifting cylinder is fixedly installed on the bottom of the connecting piece, a lifting plate is fixedly installed on the bottom of the telescopic end of the lifting cylinder, and the lifting plate is connected to the cutting ring.

[0010] Furthermore, an adjustment ring groove is provided on the top of the lifting plate, an adjustment bolt is rotatably installed inside the adjustment ring groove, an adjustment slip ring is slidably connected inside the adjustment ring groove, a threaded hole is provided inside the adjustment slip ring, the adjustment bolt is threadedly connected in the threaded hole, and a connecting column is fixedly installed on the bottom of the adjustment slip ring, and the connecting column passes through the connecting piece and is connected to the cutting ring knife.

[0011] Furthermore, a buffer spring is arranged between the lifting plate and the upper mold.

[0012] Furthermore, a cavity is provided between the connecting piece and the upper punch, an air ring is inserted into the cavity, and the air ring is bonded to the top of the cutting ring, and a connecting hole is opened inside the upper punch, and the air ring is connected with the top bag through the connecting hole.

[0013] Furthermore, a groove is provided on the top of the lifting plate, and the telescopic end of the lifting cylinder is fixedly connected in the groove.

[0014] Furthermore, a guide column is fixedly installed at the bottom of the lifting plate, and guide holes are opened inside the lower mold and the upper mold, and the guide column can be inserted into the guide hole.

[0015] The production process of the parking enhancement diaphragm for commercial vehicles includes the following steps:

[0016] S1. Equipment installation: Install the lower mold and the upper mold on the vulcanizer;

[0017] S2, preheating: heat the rubber raw materials to 70-100℃, ready for vulcanization;

[0018] S3, vulcanization: placing the heated rubber material in a mold and vulcanizing it at a specific temperature and pressure, the vulcanization temperature is between 150-180°C, and the vulcanization time is 10-30 minutes;

[0019] S4, cooling: After the vulcanization is completed, the lower mold is separated from the upper mold, and the mold is automatically demolded. The demolded diaphragm is taken out of the mold and cooled. The cooling can be completed by natural cooling or using a cooling system to ensure that the product will not be deformed due to overheating;

[0020] S5. Inspection: After cooling and taking out, the diaphragm is directly inspected for quality to ensure that its elasticity, hardness and other performance indicators meet the requirements.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention can directly shape the parking diaphragm during the vulcanization process by setting a cutting ring knife, so that the parking diaphragm after vulcanization can be used directly after cooling, without the need for a trimming process, with a simple production process and high production quality.

[0023] 2. The present invention sets a small distance between the cutting ring and the lower mold cavity. During vulcanization, the air between the molds is quickly discharged through air suction through the pores. Under the blocking effect of the cutting ring, only a small amount of raw material passes through the cutting ring. Through the setting of the steps, excess raw material will not enter the pores, and the exhaust is stable.

[0024] 3. The present invention provides a large contact area between the upper mold and the vulcanized parking diaphragm through the setting of the cutting ring knife, and the parking diaphragm remains on the upper mold. Then the cutting ring knife rises and the material discharge top column descends, causing the edge of the parking diaphragm to tilt downward. At this time, the air hole jets out to quickly demold the parking diaphragm.

[0025] In summary, the present invention utilizes the cooperation of the lower mold, the upper mold, the cutting ring and the air hole to simultaneously complete shaping, eliminate bubbles and quickly demould, and can greatly simplify the process and improve production quality at a very low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the mold clamping structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the mold opening structure of the present invention;

[0028] Figure 3 It is a cross-sectional schematic diagram of the mold clamping structure of the present invention;

[0029] Figure 4 The present invention Figure 3 The enlarged schematic diagram of part A in the middle;

[0030] Figure 5 It is a cross-sectional schematic diagram of the lower mold of the present invention;

[0031] Figure 6 The upper mold structure of the present invention explodes Figure 1 ;

[0032] Figure 7 The upper mold structure of the present invention is schematically shown in FIG. Figure 2 ;

[0033] Figure 8 It is a schematic cross-sectional view of the upper mold of the present invention;

[0034] Fig. 9 It is a schematic cross-sectional view of the upper mold structure of the present invention.

[0035] Figure numerals: 1. lower die; 11. lower die cavity; 12. guide hole; 13. cooling hole; 14. dividing groove; 15. step; 16. air hole; 2. upper die; 21. upper punch; 22. knife groove; 23. unloading ejector column; 24. ejector bag; 25. connecting hole; 3. mounting plate; 31. connecting piece; 32. lifting cylinder; 4. lifting plate; 41. guide column; 42. buffer spring; 43. adjusting ring groove; 44. adjusting bolt; 45. groove; 5. cutting ring knife; 6. sealing ring plate; 7. air ring; 8. adjusting slip ring; 81. threaded hole; 82. connecting column. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] Embodiment 1, as Figure 1-Figure 9 As shown, a production device for a parking enhanced diaphragm for commercial vehicles comprises a lower mold 1 and an upper mold 2, a lower mold cavity 11 is provided at the top of the lower mold 1, a dividing groove 14 is provided at the top of the lower mold cavity 11, and the dividing groove 14 is inclined away from the side of the lower mold cavity 11, a cooling hole 13 is provided inside the lower mold 1, a step 15 is provided at the top of the lower mold cavity 11, and a plurality of groups of air holes 16 are provided in a ring shape on the inner side of the step 15, and the air holes 16 penetrate to the bottom of the lower mold 1;

[0038] An upper punch 21 is provided at the bottom of the upper mold 2, and a knife groove 22 is opened inside the upper mold 2. A cutting ring knife 5 is slidably connected inside the knife groove 22, and the cutting ring knife 5 can be raised and lowered along the knife groove 22. A plurality of sliding holes are opened in a ring shape at the bottom of the upper mold 2, and a top bag 24 is bonded inside the sliding hole. A material discharge push column 23 is bonded to the bottom of the top bag 24, and the material discharge push column 23 is slidably connected in the sliding hole.

[0039] The heated rubber material is placed in the lower mold cavity 11, and the upper mold 2 is molded with the lower mold 1 to vulcanize the rubber at a specific temperature and pressure. At the same time, the air hole 16 is connected to the external negative pressure device. At this time, the cutting ring 5 is not inserted in the dividing groove 14, and there is only a small gap between it and the top of the lower mold cavity 11. The liquefied rubber first fills the cavity between the lower mold cavity 11, the upper punch 21 and the cutting ring 5. A small amount of rubber and excess gas enter the cavity between the step 15 and the cutting ring 5 through the gap under the suction action of the air hole 16, and the gas is discharged through the air hole 16. The step 15 has a certain height, so the liquefied rubber will not be submerged to the position of the air hole 16 and will not enter the air hole 16, thereby ensuring stable exhaust and improving the quality of rubber vulcanization. Then, the cutting ring 5 is controlled to descend, and the cutting ring 5 cuts the parking diaphragm. The cutting ring 5 is inserted into the dividing groove 14 to block the liquid rubber. Due to the small spacing, it can be easily blocked, and the inner side of the cutting ring 5 is in vertical contact with the dividing groove 14, so the edge molding quality of the parking diaphragm is high. At the same time, due to the inclined design of the dividing groove 14 away from the side of the lower mold cavity 11, it has the following advantages. Figure 4 As shown, the cutting ring 5 can completely squeeze the rubber out of the dividing groove 14, and no rubber will accumulate in the dividing groove 14, which makes subsequent demoulding convenient;

[0040] After vulcanization is completed, the upper mold 2 is controlled to separate from the lower mold 1. Since the cutting ring knife 5 contacts the edge of the vulcanized parking diaphragm, the contact area of ​​the parking diaphragm is increased, so that the parking diaphragm will remain on the upper mold 2. When the upper mold 2 drives the parking diaphragm to just leave the lower mold 1, the cutting ring knife 5 is controlled to rise, and the cutting ring knife 5 is retracted into the knife groove 22, and the edge of the parking diaphragm is exposed. At the same time, air is ventilated into the top bag 24, and the top bag 24 pushes the unloading push column 23 to descend. The unloading push column 23 props up the edge of the parking diaphragm to pry the edge of the parking diaphragm down. It should be noted that the running distance of the unloading push column 23 is short, and it does not need to pass through the upper mold 2, so it has little impact on the structure of the upper mold 2. , and reacts quickly. As the upper mold 2 continues to rise, the edge of the parking diaphragm moves to the position of the air hole 16, and the air hole 16 blows air during unloading, and the gas blows between the parking diaphragm and the upper punch 21, so that the parking diaphragm is automatically demoulded. At the same time, the annular airflow quickly and evenly cools the parking diaphragm to prevent the parking diaphragm from deformation or excessive internal stress. The demoulded parking diaphragm falls on the lower mold 1 and can be directly removed. Due to the design of the dividing groove 14, the excess part on the lower mold 1 has a certain distance from the dividing groove 14 after the cutting ring knife 5 is taken out. The excess part can be quickly removed through this distance to complete the vulcanization of the parking diaphragm;

[0041] The vulcanized parking diaphragm does not need to be cooled or shaped, and can be directly sent to the inspection station. After passing the inspection, it can be packaged. The process steps are simple and the production quality is high.

[0042] Embodiment 2, based on the above embodiment, further includes: the upper punch 21 and the upper mold 2 are designed to be separate, and the knife groove 22 is arranged between the upper punch 21 and the upper mold 2, and the upper punch 21 and the upper mold 2 are fixedly connected together through a sealing ring plate 6. Through this design, the upper punch 21 and the upper mold 2 can be processed separately, and the processing and assembly are convenient.

[0043] Embodiment three, based on the above embodiment, further includes: a mounting plate 3 is welded on the top of the upper mold 2, a connecting member 31 is fixedly installed on the bottom of the mounting plate 3, a lifting cylinder 32 is fixedly installed on the bottom of the connecting member 31, a lifting plate 4 is fixedly installed on the bottom of the telescopic end of the lifting cylinder 32, and the lifting plate 4 is connected to the cutting ring knife 5.

[0044] During installation, the upper mold 2 is installed on the vulcanizer using the mounting plate 3, and then the connecting piece 31 is installed below the mounting plate 3, and then the lifting cylinder 32 is installed below the connecting piece 31, and the lifting cylinder 32 is provided with two groups, and then the lifting plate 4 is installed on the telescopic end of the lifting cylinder 32;

[0045] The lifting cylinder 32 is controlled to operate, the lifting cylinder 32 drives the lifting plate 4 to move up and down, and the lifting plate 4 drives the cutting ring knife 5 to move up and down.

[0046] Furthermore, a buffer spring 42 is provided between the lifting plate 4 and the upper mold 2 .

[0047] Furthermore, a groove 45 is provided on the top of the lifting plate 4, and the telescopic end of the lifting cylinder 32 is fixedly connected in the groove 45, thereby saving installation spacing and making the structure more compact.

[0048] Embodiment 4, on the basis of the above embodiment, further includes: an adjusting ring groove 43 is opened on the top of the lifting plate 4, an adjusting bolt 44 is rotatably installed inside the adjusting ring groove 43, an adjusting slip ring 8 is slidably connected inside the adjusting ring groove 43, a threaded hole 81 is opened inside the adjusting slip ring 8, the adjusting bolt 44 is threadedly connected in the threaded hole 81, and a connecting column 82 is fixedly installed on the bottom of the adjusting slip ring 8, and the connecting column 82 passes through the connecting piece 31 and is connected to the cutting ring knife 5.

[0049] During installation, the upper mold 2 is installed on the vulcanizer using the mounting plate 3, and then the connecting piece 31 is installed under the mounting plate 3, and then the lifting cylinder 32 is installed under the connecting piece 31, and two groups of lifting cylinders 32 are provided, and then the lifting plate 4 is installed on the telescopic end of the lifting cylinder 32, and then the connecting column 82 passes through the connecting piece 31, and the cutting ring 5, the connecting column 82 and the adjusting slip ring 8 are fixed together with long bolts. The initial position of the cutting ring 5 can be fine-tuned by adjusting the bolt 44, so that when the parking diaphragm is vulcanized, the distance between the cutting ring 5 and the lower mold cavity 11 can meet the design requirement of 2-5mm, which will not affect the vulcanization of the parking diaphragm and can stably exhaust gas without affecting the vulcanization of the parking diaphragm. It does not require high installation precision and can be fine-tuned after installation, which is convenient to install.

[0050] Embodiment 5, based on the above embodiment, further includes: a cavity is provided between the connecting piece 31 and the upper punch 21, an air ring 7 is inserted into the cavity, and the air ring 7 is bonded to the top of the cutting ring 5, and a connecting hole 25 is opened inside the upper punch 21, and the air ring 7 is connected with the top bag 24 through the connecting hole 25.

[0051] After vulcanization is completed, the upper mold 2 is controlled to separate from the lower mold 1. Since the cutting ring 5 contacts the edge of the parking diaphragm after vulcanization, the contact area of ​​the parking diaphragm is increased, so that the parking diaphragm will remain on the upper mold 2. When the upper mold 2 drives the parking diaphragm to just leave the lower mold 1, the cutting ring 5 is controlled to rise and retract into the knife groove 22. The edge of the parking diaphragm is exposed, and the cutting ring 5 squeezes the air ring 7. The air ring 7 expands the top bag 24 through the connecting hole 25. The top bag 24 pushes the unloading top column 23 to descend. No additional drive is required, and both can be carried out simultaneously, with a compact structure.

[0052] Embodiment 6, on the basis of the above embodiment, further includes: a guide column 41 is fixedly installed at the bottom of the lifting plate 4, and guide holes 12 are opened inside the lower mold 1 and the upper mold 2, and the guide column 41 can be inserted into the guide hole 12. Through this design, the upper mold 2 and the lower mold 1 are guided for mold closing, and the mold closing accuracy is high.

[0053] Embodiment 7, based on the above embodiment, further includes a production process of a parking enhancement diaphragm for commercial vehicles, comprising the following steps:

[0054] S1. Equipment installation: Install the lower mold 1 and the upper mold 2 on the vulcanizer;

[0055] S2, preheating: heat the rubber raw materials to 70-100℃, ready for vulcanization;

[0056] S3, vulcanization: placing the heated rubber material in a mold and vulcanizing it at a specific temperature and pressure, the vulcanization temperature is between 150-180°C, and the vulcanization time is 10-30 minutes;

[0057] S4, cooling: after the vulcanization is completed, the lower mold 1 is separated from the upper mold 2, and the mold is automatically demolded. The demolded diaphragm is taken out of the mold and cooled. The cooling can be completed by natural cooling or using a cooling system to ensure that the product will not be deformed due to overheating;

[0058] S5. Inspection: After cooling and taking out, the diaphragm is directly inspected for quality to ensure that its elasticity, hardness and other performance indicators meet the requirements.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A commercial vehicle parking enhancement diaphragm production device, comprising a lower mold (1) and an upper mold (2), characterized in that: A lower mold cavity (11) is provided at the top of the lower mold (1), a dividing groove (14) is provided at the top of the lower mold cavity (11), the dividing groove (14) is tilted away from the side of the lower mold cavity (11), a cooling hole (13) is provided inside the lower mold (1), a step (15) is provided at the top of the lower mold cavity (11), a plurality of groups of air holes (16) are provided in a ring shape on the inner side of the step (15), and the air holes (16) penetrate to the bottom of the lower mold (1); An upper punch (21) is provided at the bottom of the upper die (2), a knife groove (22) is provided inside the upper die (2), a cutting ring knife (5) is slidably connected inside the knife groove (22), and the cutting ring knife (5) can be lifted and lowered along the knife groove (22), a plurality of groups of sliding holes are provided in an annular shape at the bottom of the upper die (2), a top bag (24) is bonded inside the sliding hole, a material discharge push column (23) is bonded at the bottom of the top bag (24), and the material discharge push column (23) is slidably connected in the sliding hole; The upper punch (21) and the upper die (2) are designed to be separated, and the knife groove (22) is arranged between the upper punch (21) and the upper die (2); the upper punch (21) and the upper die (2) are fixedly connected together through a sealing ring plate (6); a mounting plate (3) is welded on the top of the upper die (2); a connecting piece (31) is fixedly installed on the bottom of the mounting plate (3); a lifting cylinder (32) is fixedly installed on the bottom of the connecting piece (31); a lifting plate (4) is fixedly installed on the bottom of the telescopic end of the lifting cylinder (32); the lifting plate (4) is connected to the cutting ring knife (5); an adjusting ring groove (43) is opened on the top of the lifting plate (4); a rotating shaft (43) is installed inside the adjusting ring groove (43) An adjusting bolt (44) is provided, wherein the adjusting ring groove (43) is internally slidably connected with an adjusting slip ring (8), a threaded hole (81) is provided inside the adjusting slip ring (8), and the adjusting bolt (44) is threadedly connected in the threaded hole (81). A connecting column (82) is fixedly installed at the bottom of the adjusting slip ring (8), and the connecting column (82) passes through the connecting piece (31) and is connected to the cutting ring knife (5). A cavity is provided between the connecting piece (31) and the upper punch (21), and an air ring (7) is inserted into the cavity, and the air ring (7) is bonded to the top of the cutting ring knife (5). A connecting hole (25) is provided inside the upper punch (21), and the air ring (7) is connected to the top bag (24) through the connecting hole (25).

2. The commercial vehicle parking enhancement diaphragm production device according to claim 1, characterized in that: A buffer spring (42) is provided between the lifting plate (4) and the upper die (2).

3. The commercial vehicle parking enhancement diaphragm production device according to claim 1, characterized in that: The top of the lifting plate (4) is provided with a groove (45), and the telescopic end of the lifting cylinder (32) is fixedly connected in the groove (45).

4. The commercial vehicle parking enhancement diaphragm production device according to claim 1, characterized in that: A guide column (41) is fixedly mounted on the bottom of the lifting plate (4), and guide holes (12) are provided inside the lower mold (1) and the upper mold (2), and the guide column (41) can be inserted into the guide hole (12).

5. A process for producing a parking enhancement diaphragm for commercial vehicles, using a production device for a parking enhancement diaphragm for commercial vehicles as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Equipment installation: Install the lower mold (1) and the upper mold (2) on the vulcanizing machine; S2, preheating: heating the rubber raw materials to 70-100°C in preparation for vulcanization; S3, vulcanization: Place the heated rubber material in a mold and vulcanize it at a specific temperature and pressure. The vulcanization temperature is between 150-180°C and the vulcanization time is 10-30 minutes. S4, cooling: after the vulcanization is completed, the lower mold (1) is separated from the upper mold (2), and the mold is automatically demolded. The demolded diaphragm is taken out of the mold and cooled. The cooling can be completed by natural cooling or using a cooling system to ensure that the product will not be deformed due to overheating; S5. Inspection: After cooling and taking out, the diaphragm is directly inspected for quality to ensure that its elasticity and hardness performance indicators meet the requirements.

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