Silicone rubber extrusion forming equipment

Abstract

The utility model relates to the technical field of silicone rubber production, and discloses silicone rubber extrusion forming equipment which comprises a processing table, a lower die mechanism fixedly arranged at the top end of the processing table and an upper die mechanism erected above the lower die mechanism, and the upper die mechanism is used for being in press fit with the lower die mechanism; the conveying mechanism comprises a conveying assembly and a lifting assembly, the conveying assembly comprises conveying belts arranged on the two opposite sides of the lower die mechanism, the lifting assembly comprises a plurality of lifting rods and a lifting driving part, the lifting rods penetrate through the machining table and are in sliding connection with the machining table, and the lifting driving part is arranged at the bottom of the machining table; the driving end of the lifting driving piece is connected with the bottom end of the lifting rod, and the top end of the lifting rod is connected with the conveying belt so as to drive the conveying belt to ascend and descend to lift materials. Through cooperation of the lifting rod and the conveying belt, the mold does not need to be lifted frequently after the forming step is completed, and material transfer is achieved through lifting of the conveying belt, so that abrasion of the lower mold mechanism is reduced, and the problem of inaccurate alignment possibly caused by frequent lifting of the mold is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone rubber production, and particularly relates to a silicone rubber extrusion molding device. Background Art

[0002] Silicone rubber is a high-performance elastomer based on a silicon-oxygen chain. Due to its excellent resistance to high and low temperatures, aging resistance, chemical corrosion resistance, and outstanding electrical insulation performance, it is widely used in many fields such as automotive, medical, electronics, electrical, and construction. In modern industry, the demand for silicone rubber is increasing day by day, which has promoted the continuous innovation of related processing technologies, especially in the molding process. Currently, the molding of silicone rubber mainly adopts hot pressing molding and extrusion molding technologies. Among them, extrusion molding has become one of the main methods for silicone rubber processing because it is suitable for mass production and can manufacture various complex profiles.

[0003] Traditional silicone rubber extrusion molding machines generally feed materials manually and unload finished products manually, with low efficiency and certain safety risks. Therefore, recently, some extrusion molding machines that can achieve automatic loading and unloading have emerged. Usually, a lifting mechanism is equipped on the mold structure. To facilitate the removal of the finished product, the mold is lifted after the molding step is completed, and an automated robotic arm is further used for picking and placing. However, the frequent lifting operation of the mold will cause wear of the molding mold, especially under high load conditions, resulting in misalignment of the molding mold during the working process, thus affecting the quality of the finished product.

[0004] Therefore, it is necessary to provide a silicone rubber extrusion molding device to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a silicone rubber extrusion molding device to solve the technical problems mentioned in the background art.

[0006] The utility model adopts the following technical solutions:

[0007] A silicone rubber extrusion molding device, comprising:

[0008] A processing table, on the top of which a lower mold mechanism is fixedly arranged, and an upper mold mechanism is erected above the lower mold mechanism. Among them, the upper mold mechanism is used to press-fit with the lower mold mechanism;

[0009] The transmission mechanism includes a conveying component and a lifting component. The conveying component includes conveyor belts arranged on opposite sides of the lower die mechanism. The lifting component includes a lifting driving member and a plurality of lifting rods. The lifting rods penetrate the processing table and are slidably connected to the processing table. The lifting driving member is arranged at the bottom of the processing table, and the driving end of the lifting driving member is connected to the bottom end of the lifting rod. The top end of the lifting rod is connected to the conveyor belt to drive the conveyor belt to lift and place materials.

[0010] Further, the lower die mechanism includes a base fixedly arranged at the top end of the processing table. A lower forming head is arranged at the top end of the base. A forming groove is arranged at the top end of the lower forming head, and a heating tube is embedded in the forming groove.

[0011] Further, the upper die mechanism includes a plurality of support rods fixedly arranged at the top end of the processing table. A pressing driving member is fixedly connected to the top end of the support rods. The driving end of the pressing driving member is connected to a transmission plate. The transmission plate is slidably connected to the support rods. A heating plate is arranged at the bottom end of the transmission plate, and an upper forming head is fixedly connected to the bottom end of the heating plate.

[0012] Further, the conveying component further includes a fixing frame and a synchronizing rod. The fixing frame is fixedly connected to the top end of the lifting rod. The conveyor belt is rotatably connected to the fixing frame. The synchronizing rod is rotatably connected to the two conveyor belts to make the conveyor belts run synchronously.

[0013] Further, a tension adjusting rod is further included. The fixing frame is provided with a waist-shaped adjusting hole. The tension adjusting rod passes through the waist-shaped adjusting hole, and the tension adjusting rod is rotatably connected to the conveyor belt. An adjusting member is arranged on one side of the fixing frame, and the adjusting member is movably connected to the tension adjusting rod.

[0014] Further, a conveying driving component is arranged on one side of the fixing frame. The conveying driving component includes a conveying motor fixedly installed on one side of the fixing frame. The driving end of the conveying motor is connected to a first pulley. One end of the synchronizing rod close to the conveying motor is connected to a second pulley. The first pulley and the second pulley are connected by a belt transmission to drive the synchronizing rod to make the conveyor belt run.

[0015] Further, a material blocking component is arranged on one side of the lower die mechanism facing the synchronizing rod. The material blocking component includes a material blocking driving member arranged at the top end of the processing table, and a material blocking rod is arranged at the driving end of the material blocking driving member.

[0016] Furthermore, a pressing member is provided at the top end of the base. The pressing member is disposed on one side of the lower forming head and is used to press and fix the material together with the upper forming head.

[0017] Furthermore, several alignment components are provided at the top end of the fixing frame. The alignment components include alignment sensors and protective cases. The protective cases are fixedly arranged at the top end of the fixing frame, and one side of the protective cases facing the lower die mechanism is open. The alignment sensors are arranged inside the protective cases, and the sensing ends of the alignment sensors face the side of the lower die mechanism.

[0018] Beneficial effects:

[0019] The utility model provides a silicone rubber extrusion molding device. Through the conveying component and the lifting component in the transmission mechanism, automatic feeding of materials and automatic discharging of finished products are realized. At the same time, through the cooperation of the lifting rod and the conveyor belt, after the molding step is completed, there is no need to frequently lift and lower the mold. The transfer of materials is achieved by the lifting of the conveyor belt, thereby reducing the wear of the lower die mechanism. Especially in the case of high load, the problem of inaccurate alignment that may be caused by frequently lifting and lowering the mold is avoided. Through the stable transmission mechanism, accurate pressing of the upper and lower die mechanisms is ensured, thereby guaranteeing the quality consistency of the finished products. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of a silicone rubber extrusion molding device of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of a silicone rubber extrusion molding device of the utility model in another direction;

[0022] Figure 3 is Figure 2 a partial enlarged schematic diagram of part A in

[0023] Wherein: 1, processing table; 2, lower die mechanism; 21, base; 22, lower forming head; 3, upper die mechanism; 31, support rod; 32, pressing drive member; 33, transmission plate; 34, heating plate; 35, upper forming head; 4, transmission mechanism; 41, conveying component; 411, conveyor belt; 412, fixing frame; 413, synchronizing rod; 42, lifting component; 421, lifting drive member; 422, lifting rod; 5, tension adjusting rod; 6, adjusting member; 7, conveying motor; 8, material blocking drive member; 9, material blocking rod; 10, pressing member; 11, alignment component.

[0024] The realization, functional characteristics and advantages of the purpose of the utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0025] It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, a direct connection or an indirect connection through an intermediate medium, and may be the communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0029] Refer to Figures 1 to 3, the present utility model proposes a silicone rubber extrusion molding device, including: a processing table 1, a lower die mechanism 2 fixedly arranged at the top of the processing table 1, and an upper die mechanism 3 erected above the lower die mechanism 2, wherein the upper die mechanism 3 is used for pressing and fitting with the lower die mechanism 2; a transmission mechanism 4, including a conveying component 41 and a lifting component 42, the conveying component 41 includes conveyor belts 411 arranged on opposite sides of the lower die mechanism 2, the lifting component 42 includes a lifting driving member 421 and a plurality of lifting rods 422, the lifting rods 422 penetrate through the processing table 1 and are slidably connected with the processing table 1, the lifting driving member 421 is arranged at the bottom of the processing table, the driving end of the lifting driving member 421 is connected with the bottom end of the lifting rod 422, and the top end of the lifting rod 422 is connected with the conveyor belt 411 to drive the conveyor belt 411 to lift and place materials.

[0030] In the above embodiment, a lower die mechanism 2 is fixedly arranged at the top of the processing table 1, the upper die mechanism 3 is erected above the lower die mechanism 2, and is tightly pressed and fitted with the lower die mechanism 2 through a driving system. The transmission mechanism 4 includes a conveying component 41 and a lifting component 42. The conveying component 41 includes conveyor belts 411 arranged on both sides of the lower die mechanism 2 to facilitate the flow and transfer of materials. The lifting component 42 is composed of a plurality of lifting rods 422 cooperating with a lifting driving member 421. In this solution, the lifting rods 422 are preferably arranged in four. The lifting rods 422 penetrate through the processing table 1 and are slidably connected with it, ensuring the smoothness of the up and down movement of the conveying component 41. The lifting driving member 421 is located at the bottom of the processing table 1, and its driving end is connected to the bottom end of the lifting rod 422 through a connecting rod, ensuring that the conveyor belt 411 can perform a lifting movement under the push of the lifting rod 422, thereby realizing the automatic feeding and discharging of materials.

[0031] Through the conveying component 41 and the lifting component 42 in the transmission mechanism 4, the automatic feeding of materials and the automatic discharging of finished products are realized. At the same time, through the cooperation of the lifting rods 422 and the conveyor belts 411, after the molding step is completed, there is no need to frequently lift and lower the mold. Relying on the lifting of the conveyor belts 411 to realize the transfer of materials, thereby reducing the wear of the lower die mechanism 2. Especially in the case of high load, it avoids the problem of inaccurate alignment that may be caused by frequently lifting and lowering the mold. Through the stable transmission mechanism 4, it ensures the precise pressing and fitting of the upper and lower die mechanisms 2, thereby ensuring the quality consistency of the finished products.

[0032] In an embodiment, the lower die mechanism 2 includes a base 21, the base 21 is fixedly arranged at the top of the processing table 1, a lower forming head 22 is arranged at the top of the base 21, a forming groove is arranged at the top of the lower forming head 22, and a heating pipe is embedded in the forming groove.

[0033] In the above embodiments, the lower die mechanism 2 is crucial for the forming quality of the finished product. The base 21, as the support structure of the lower die mechanism 2, is fixed to the top of the processing table 1, ensuring the stability of the entire lower die mechanism 2 during the processing. The lower forming head 22 is fixedly arranged at the top of the base 21 and is in direct contact with the upper die mechanism 3.

[0034] A forming groove is provided at the top of the lower forming head 22. The forming groove is customized according to the product shape to precisely control the forming of the silicone rubber. To accelerate the softening of the silicone rubber, heating tubes are embedded in the forming groove. The heating tubes are evenly distributed and can quickly and evenly heat the silicone rubber in the forming groove, enabling it to reach an ideal state in a relatively short time.

[0035] In addition, the lower die mechanism 2 is also made of materials with high temperature resistance and corrosion resistance to cope with high-temperature heating and the chemical properties of the silicone rubber, ensuring the service life of the equipment and the forming quality. At the same time, the surfaces of the lower forming head 22 and the forming groove are both specially treated to improve their wear resistance and smoothness, further reducing the friction and resistance to the silicone rubber and facilitating the smooth demolding of the finished product.

[0036] In summary, the lower die mechanism 2 in this embodiment ensures the stability and quality consistency during the extrusion forming process of the silicone rubber through fine structural design and optimized material selection. At the same time, the embedding of the heating tubes also provides strong support for the forming of the silicone rubber, further improving the production efficiency and product quality.

[0037] In one embodiment, the upper die mechanism 3 includes a plurality of support rods 31. The support rods 31 are fixedly arranged at the top of the processing table 1. A pressing drive member 32 is fixedly connected to the top of the support rods 31. The driving end of the pressing drive member 32 is connected to a transmission plate 33. The transmission plate 33 is slidably connected to the support rods 31. A heating plate 34 is arranged at the bottom of the transmission plate 33. The heating plate 34 is fixedly connected to an upper forming head 35 at its bottom.

[0038] In the above embodiments, the upper die mechanism 3 uses multiple support rods 31 fixed to the top of the processing table 1 to ensure the stability of the overall structure. A pressing drive member 32 is installed at the top of the support rods 31. A cylinder is preferably selected as the pressing drive member 32. The driving end of the pressing drive member 32 is connected to the transmission plate 33. The transmission plate 33 is slidably connected to the support rods 31 through a sliding sleeve, enabling the transmission plate 33 to move smoothly and precisely in the vertical direction. The heating plate 34 is connected to the bottom of the transmission plate 33. The heating plate 34 is fixedly connected to the upper forming head 35. Uniformly distributed heating elements are arranged inside the heating plate 34 for preheating the upper forming head 35 before pressing to improve the pressing effect and the product forming quality.

[0039] In one embodiment, the conveying assembly 41 further includes a fixing frame 412 and a synchronizing rod 413. The fixing frame 412 is fixedly connected to the top end of the lifting rod 422. The conveyor belt 411 is rotatably connected to the fixing frame 412. The synchronizing rod 413 is rotatably connected to the two conveyor belts 411 to make the conveyor belts 411 run synchronously.

[0040] In the above embodiment, the fixing frame 412 is tightly and fixedly connected to the top end of the lifting rod 422 to ensure the stability of the conveyor belt 411 during the lifting process. The synchronizing rod 413 is installed between the two conveyor belts 411 and is driven by rollers to achieve the synchronous operation of the conveyor belts 411 on both sides. This not only simplifies the transmission system but also greatly improves the efficiency and accuracy of material transmission, avoiding the problem of material deviation caused by the asynchronous operation of the conveyor belts 411.

[0041] In one embodiment, a tension adjusting rod 5 is further included. The fixing frame 412 is provided with a waist-shaped adjusting hole. The tension adjusting rod 5 passes through the waist-shaped adjusting hole and is rotatably connected to the conveyor belt 411. An adjusting member 6 is arranged on one side of the fixing frame 412, and the adjusting member 6 is movably connected to the tension adjusting rod 5.

[0042] In the above embodiment, in order to further optimize the operation effect of the conveyor belt 411, a tension adjusting rod 5 is arranged on the fixing frame 412. It passes through the preset waist-shaped adjusting hole on the fixing frame 412 and is rotatably connected to the conveyor belt 411. One end or both ends of the tension adjusting rod 5 are set to protrude from the fixing frame 412, and the tension adjustment is realized through the adjusting member 6. According to the actual operation of the conveyor belt 411, its tension can be easily adjusted to ensure that the conveyor belt 411 can still maintain a stable transmission efficiency during long-term operation, reducing problems such as failures and unsmooth material transmission caused by slack or over-tightening.

[0043] In one embodiment, a conveying drive assembly is arranged on one side of the fixing frame 412. The conveying drive assembly includes a conveying motor 7. The conveying motor 7 is fixedly installed on one side of the fixing frame 412. A first pulley is connected to the driving end of the conveying motor 7. One end of the synchronizing rod 413 close to the conveying motor 7 is connected to a second pulley. The first pulley and the second pulley are connected by a belt drive to drive the synchronizing rod 413 to make the conveyor belt 411 run.

[0044] In the above embodiments, the conveyor motor 7 in the conveyor drive assembly serves as the power source and is fixed to one side of the fixed frame 412. The drive end of the motor is closely connected to the first pulley, and power is transmitted to the second pulley on the synchronous rod 413 through a belt, achieving smooth power transmission, effectively reducing energy loss during the transmission process, and ensuring that the conveyor belt 411 can operate continuously and efficiently. At the same time, belt drive also has a certain buffering and vibration absorption effect, which helps to reduce the vibration and noise generated when the equipment operates at high speed.

[0045] In one embodiment, a material blocking assembly is provided on the side of the lower die mechanism 2 facing the synchronous rod 413. The material blocking assembly includes a material blocking drive member 8, and the material blocking drive member 8 is arranged at the top of the processing table 1. A material blocking rod 9 is arranged at the drive end of the material blocking drive member 8.

[0046] In the above embodiments, the material blocking drive member 8 in the material blocking assembly is preferably a cylinder or an electric push rod, which is installed at the top of the processing table 1, and its drive end is closely connected to the material blocking rod 9. In each processing process, when the material is conveyed above the lower die mechanism 2, the material blocking drive member 8 will block the material to prevent deviation or dropping.

[0047] In one embodiment, a pressing member 10 is further arranged at the top of the base 21. The pressing member 10 is arranged on one side of the lower forming head 22, and the pressing member 10 is used to press and fix the material with the upper forming head 35.

[0048] In the above embodiments, the pressing member 10 can cooperate with the upper forming head 35 to ensure that the material remains stable during the forming process. Thus, when the upper forming head 35 descends and closes with the lower forming head 22, the material can be evenly stressed to ensure the forming effect.

[0049] In one embodiment, a plurality of alignment components 11 are arranged at the top of the fixed frame 412. The alignment components 11 include alignment sensors and protective shells. The protective shells are fixedly arranged at the top of the fixed frame 412, and one side of the protective shell facing the lower die mechanism 2 is open. The alignment sensors are arranged inside the protective shells, and the sensing ends of the alignment sensors face the side of the lower die mechanism 2.

[0050] In the above embodiments, the alignment components 11 can accurately convey the unprocessed materials to the preset positions. Each pair of alignment sensors is precisely installed inside the protective shells, and their sensing ends are precisely aligned with the lower die mechanism 2. They can quickly capture and confirm the position information of the materials before the materials are conveyed to the forming area, ensuring the precise alignment of the materials before forming, effectively avoiding poor forming caused by position deviation. At the same time, the introduction of the protective shells not only provides a stable support for the alignment sensors, but also effectively prevents interference or damage to them caused by external environmental factors, further ensuring the long-term stable operation of the equipment.

[0051] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included within the patent protection scope of the present utility model.

Claims

1. A silicone rubber extrusion molding device, characterized in that: include: A processing table, a lower mold mechanism is fixedly arranged on the top of the processing table, and an upper mold mechanism is mounted above the lower mold mechanism, wherein the upper mold mechanism is used for pressing with the lower mold mechanism; The transmission mechanism includes a transmission component and a lifting component. The transmission component includes a conveyor belt arranged on opposite sides of the lower mold mechanism. The lifting component includes a lifting drive and a plurality of lifting rods. The lifting rods penetrate the processing table and are slidably connected to the processing table. The lifting drive is arranged at the bottom of the processing table. The driving end of the lifting drive is connected to the bottom end of the lifting rod, and the top end of the lifting rod is connected to the conveyor belt to drive the conveyor belt to lift and lower materials.

2. A silicone rubber extrusion molding device according to claim 1, characterized in that: The lower mold mechanism comprises a base, the base is fixedly arranged on the top of the processing table, a lower molding head is arranged on the top of the base, a molding groove is arranged on the top of the lower molding head, and a heating pipe is embedded in the molding groove.

3. A silicone rubber extrusion molding device according to claim 2, characterized in that: The upper mold mechanism includes a plurality of support rods, the support rods are fixedly arranged on the top of the processing table, the top of the support rods is fixedly connected with a pressing drive member, the driving end of the pressing drive member is connected with a transmission plate, the transmission plate is slidably connected to the support rods, the bottom end of the transmission plate is provided with a heating plate, and the bottom end of the heating plate is fixedly connected with an upper forming head.

4. The silicone rubber extrusion molding equipment according to claim 1, characterized in that: The conveying assembly also includes a fixed frame and a synchronization rod, the fixed frame is fixedly connected to the top end of the lifting rod, the conveyor belt is rotatably connected to the fixed frame, and the synchronization rod is rotatably connected to the two conveyor belts to enable the conveyor belts to run synchronously.

5. The silicone rubber extrusion molding equipment according to claim 4, characterized in that: It also includes a tensioning adjustment rod, the fixed frame is provided with a waist-shaped adjustment hole, the tensioning adjustment rod is passed through the waist-shaped adjustment hole, and the tensioning adjustment rod is rotatably connected to the conveyor belt, and an adjustment piece is provided on one side of the fixed frame, and the adjustment piece is movably connected to the tensioning adjustment rod.

6. The silicone rubber extrusion molding equipment according to claim 5, characterized in that: A transmission drive assembly is provided on one side of the fixed frame, and the transmission drive assembly includes a transmission motor. The transmission motor is fixedly installed on one side of the fixed frame, and a driving end of the transmission motor is connected to a first pulley, and an end of the synchronization rod close to the transmission motor is connected to a second pulley. The first pulley and the second pulley are connected by belt transmission to drive the synchronization rod to make the conveyor belt run.

7. The silicone rubber extrusion molding equipment according to claim 4, characterized in that: A material blocking assembly is arranged on one side of the lower mold mechanism facing the synchronization rod. The material blocking assembly includes a material blocking driving member. The material blocking driving member is arranged on the top of the processing table. A material blocking rod is arranged at the driving end of the material blocking driving member.

8. The silicone rubber extrusion molding equipment according to claim 3, characterized in that: A pressing piece is also provided at the top of the base, and the pressing piece is provided on one side of the lower forming head, and the pressing piece is used to press and fix the material with the upper forming head.

9. The silicone rubber extrusion molding equipment according to claim 4, characterized in that: A plurality of alignment components are arranged at the top of the fixing frame, and the alignment components include an alignment sensor and a protective shell. The protective shell is fixedly arranged at the top of the fixing frame, and the protective shell is open toward one side of the lower mold mechanism. The alignment sensor is arranged on the inner side of the protective shell, and the sensing end of the alignment sensor is toward one side of the lower mold mechanism.

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