Rubber foamed sponge forming device based on intelligent temperature control
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU WANMING POLYMER MATERIALS CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
Smart Images

Figure CN224408255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber foaming technology, specifically to a rubber foaming sponge molding device based on intelligent temperature control. Background Technology
[0002] Rubber foaming molding is a process that uses physical or chemical methods to create a uniform closed-cell or open-cell structure within a rubber matrix, resulting in lightweight, highly elastic, and heat-insulating porous materials. It is currently widely used in footwear (such as midsoles for athletic shoes), automobiles (sealing strips, shock-absorbing pads), and construction (insulation layers). During the rubber foaming process, temperature is a key factor affecting the decomposition of the foaming agent, bubble formation, and the performance of the finished product; therefore, molding equipment with heating capabilities is required.
[0003] Existing molding devices for rubber foam sponges lack intelligent control over the heating effect. As the height of the sponge increases during the foaming process, the upper layer of the sponge gradually moves away from the heating device at the bottom, resulting in a gradual decrease in the heating effect of the upper part and affecting the final foaming effect. Moreover, the uniformity and stability of the heating effect are particularly important for foaming. Therefore, we propose a rubber foam sponge molding device based on intelligent temperature control. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a rubber foam sponge molding device based on intelligent temperature control. This device ensures uniform heating and stable heat distribution. During the rubber foaming process, a vertical array of infrared sensors monitors the molding height of the rubber foam sponge. The PLC controller, based on the monitoring data from the infrared sensors, controls the activation of the heating plate on the corresponding side, heating the foam sponge from the outside. This allows for intelligent control of the heating device's operating range as foaming progresses, achieving intelligent control of the heating effect. Furthermore, it features a reliable raw material mixing unit, ensuring uniform mixing of the foaming materials and improving the subsequent foaming and molding effect, effectively solving the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rubber foam sponge molding device based on intelligent temperature control, comprising a molding tank, a uniform heating unit, and a raw material stirring unit;
[0006] Molding tank: It is a square tank with a mixing tank installed on the right side. A pump and a conveying pipe are installed between the mixing tank and the molding tank.
[0007] Uniform heating unit: Includes heat transfer oil pipes, heating oil tank one, delivery pump, heating oil tank two, and control panel. The heat transfer oil pipes consist of three parts: a portion of heat transfer oil pipes is laid on the inner bottom of both the molding tank and the mixing drum; a portion of the heat transfer oil pipes located below the mixing drum has a spiral structure; a portion of the heat transfer oil pipes located below the molding tank has a layered, interconnected square frame structure; the left and right portions of the heat transfer oil pipes are connected by a straight section in the middle, forming a closed-loop circulation. A heating oil tank one is installed at the bottom of both the molding tank and the mixing drum. The two heat transfer oil pipes... The middle straight sections pass through the interior of a heating oil tank 1 and a heating oil tank 2 respectively. Heating devices and temperature sensors are installed inside the heating oil tank 1 and the heating oil tank 2. A conveying pump is installed below the molding pool. The discharge end of the heating oil tank 1 is connected to the inlet end of the conveying pump. The discharge end of the conveying pump is connected to the inlet of the adjacent heat transfer oil pipe on the upper side. A control panel is installed on the right side of the front end of the molding pool. The control panel includes a digital display screen and a temperature adjustment knob. The heating devices and temperature sensors at the two heating oil tanks are bidirectionally electrically connected to the control panel.
[0008] Raw material mixing unit: installed inside the mixing tank.
[0009] The mixing tank is used to stir and mix the rubber foaming raw materials, and then transports them to the molding tank for shaping via a pump and conveying pipe. The heat transfer oil pipes heat both the molding tank and the mixing tank. Heating the molding tank provides the necessary temperature environment for foaming agent decomposition and bubble formation, while heating the mixing tank preheats the raw materials, facilitating subsequent foaming. The heat transfer oil pipes on the lower sides of the molding tank and mixing tank are evenly coiled to ensure uniform heating. The left and right sections of the heat transfer oil pipes are connected by a straight section in the middle, forming a closed-loop circulation. The delivery pump provides the power to transport the hot oil within the pipes and ensures directional circulation. Both heating oil tanks can reheat the oil after heat exchange, ensuring stable heating of the raw materials during mixing, conveying, and molding. The control panel uses temperature sensors to detect the temperature in both heating oil tanks and provides temperature display and control functions. This, combined with the circulating supply of hot oil and waste heat utilization, effectively maintains stable heating and saves energy.
[0010] Furthermore, the uniform heating unit also includes infrared sensors, heating plates, and a PLC controller. A vertical row of infrared sensors is embedded in the middle of the inner wall of each side of the molding pool, with three sensors in each row, spaced equally. A heating plate is embedded on the outer side of the molding pool, corresponding horizontally to each infrared sensor. The heating plate contains heating wires. A PLC controller is installed on the left front end of the molding pool. The heating wires at each heating plate and the infrared sensors are electrically connected to the output of an external power supply through the PLC controller. The vertical array of infrared sensors monitors the molding height of the rubber foam sponge. When the infrared sensor detects that the foaming height exceeds the current sensor height, the PLC controller can activate the heating plate on the corresponding side to heat the foam sponge from the outside. This allows for intelligent control of the heating device's operating range as foaming progresses, achieving intelligent control of the heating effect.
[0011] Furthermore, the raw material mixing unit includes a mounting base, a motor, a mixing frame, and a central rotating shaft. A mounting base is installed at the upper end of the mixing tank, and a motor is mounted on the upper end of the mounting base. The output shaft of the motor faces downwards and is fixedly connected to the upper end of the central rotating shaft via a coupling. The central rotating shaft is vertically oriented, and a mixing frame is fixedly connected to its outer side. The mounting base is used to install the motor, which drives the mixing frame to rotate via the central rotating shaft, thereby mixing the foaming raw materials evenly.
[0012] Furthermore, the raw material mixing unit also includes connecting rods and locking blocks. Three connecting rods are fixedly connected to the outer circumferential array of the mounting base, with the outward-facing end of each connecting rod fixedly connected to the inner wall of the mixing tank. Three arc-shaped locking blocks are fixedly connected to the upper edge of the mounting base, and the three locking blocks together secure the motor to the outside. The connecting rods are used to fix the mounting base to the upper port of the mixing tank, and the locking blocks are used to secure the motor.
[0013] Furthermore, the device also includes support rods, arc-shaped pillars, straight prisms, and feet. A straight prism is fixedly connected to each of the four corners of the lower end of the molding tank. Three arc-shaped pillars are fixedly connected in a circular array to the lower end of the mixing tank. Support rods are fixedly connected to the lower ends of both heating oil tanks. A foot is fixedly connected to the lower end of each arc-shaped pillar and straight prism, with bolt through holes on the outer side of the foot. The straight prisms support the molding tank, the arc-shaped pillars support the mixing tank, the support rods support the two heating oil tanks, and the feet improve the stability of the molding tank and mixing tank, and can be secured with bolts.
[0014] Furthermore, it also includes a support platform and a fixing frame. The support platform is installed at the lower end of the delivery pump, supporting the lower side of the delivery pump. The fixing frame, which is fixedly Ω-shaped, is installed on the upper side of the delivery pump. The two ends of the fixing frame are fixedly connected to the support platform by bolts. The support platform is used to support the delivery pump, and the fixing frame is used to secure the delivery pump, reducing vibration during operation.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This rubber foam sponge molding device based on intelligent temperature control has the following advantages:
[0016] 1. The heat transfer oil pipe is used to heat the molding tank and mixing tank, providing the temperature environment required for the decomposition of foaming agent and the formation of bubbles. The heat transfer oil pipes on the lower side of the molding tank and mixing tank are evenly coiled to ensure the uniformity of the heating effect. The left and right heat transfer oil pipes are connected by a straight section in the middle to form a closed loop. Both heating oil tanks can reheat the heated oil after heat exchange to ensure that the raw materials are kept heated stably during mixing, conveying and molding.
[0017] 2. During the rubber foaming process, the vertical array of infrared sensors is used to monitor the molding height of the rubber foam sponge. The PLC controller can control the heating plate on the corresponding side to start according to the monitoring data of the infrared sensors, so as to heat the foam sponge from the outside. Thus, as the foaming continues, the opening range of the heating device can be controlled to realize intelligent control of the heating effect.
[0018] 3. This invention features a reliable and uniform heating unit, ensuring uniform heating effect and stable heat distribution. During the rubber foaming process, a vertical array of infrared sensors monitors the molding height of the foamed sponge. The PLC controller, based on the infrared sensor data, activates the corresponding heating plate to heat the foamed sponge from the outside. This allows for intelligent control of the heating device's operating range as foaming progresses, achieving intelligent control of the heating effect. Furthermore, a reliable raw material mixing unit ensures uniform mixing of the foaming materials, which is beneficial for improving the subsequent foaming and molding results. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the lower structure of this utility model;
[0021] Figure 3 This is a schematic diagram of a partial lower structure of the present invention;
[0022] Figure 4 This is a schematic diagram of the upper oblique side and internal structure of this utility model.
[0023] In the diagram: 1. Molding tank, 2. Mixing tank, 3. Uniform heating unit, 31. Heat transfer oil pipe, 32. Heating oil tank one, 33. Conveying pump, 34. Heating oil tank two, 35. Control panel, 36. Infrared sensor, 37. Heating plate, 38. PLC controller, 4. Raw material mixing unit, 41. Connecting rod, 42. Mounting base, 43. Motor, 44. Mixing rack, 45. Clamping block, 46. Central rotating shaft, 5. Support platform, 6. Fixing frame, 7. Support rod, 8. Arc-shaped support column, 9. Straight prism, 10. Foot. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-4 This embodiment provides a technical solution: a rubber foam sponge molding device based on intelligent temperature control, including a molding tank 1, a uniform heating unit 3 and a raw material stirring unit 4;
[0026] Molding tank 1: It is a square tank. A mixing tank 2 is installed on the right side of the tank. A pump and a conveying pipe are installed between the mixing tank 2 and the molding tank 1.
[0027] Uniform heating unit 3: includes heat transfer oil pipe 31, heating oil tank 1 32, delivery pump 33, heating oil tank 2 34, and control panel 35. The heat transfer oil pipe 31 consists of three parts: a portion of the heat transfer oil pipe 31 is laid on the inner bottom of both the molding tank 1 and the mixing drum 2; a portion of the heat transfer oil pipe 31 located below the mixing drum 2 has a spiral structure; a portion of the heat transfer oil pipe 31 located below the molding tank 1 has a layered, interconnected square frame structure; the left and right portions of the heat transfer oil pipe 31 are connected by a straight section in the middle, forming a closed-loop circulation. A heating oil tank 1 32 is installed on the lower side of both the molding tank 1 and the mixing drum 2 for heat transfer... Two straight sections of the oil pipe 31 pass through the interior of a heating oil tank 32. Heating devices and temperature sensors are installed inside the heating oil tank 32 and the heating oil tank 34. A conveying pump 33 is installed below the molding tank 1. The discharge end of the heating oil tank 32 is connected to the inlet end of the conveying pump 33. The discharge end of the conveying pump 33 is connected to the inlet of the adjacent heat transfer oil pipe 31 on the upper side. A control panel 35 is installed on the right side of the front end of the molding tank 1. The control panel 35 includes a digital display screen and a temperature adjustment knob. The heating devices and temperature sensors at the two heating oil tanks are bidirectionally electrically connected to the control panel 35.
[0028] Raw material mixing unit 4: installed inside mixing tank 2.
[0029] The mixing tank 2 is used to stir and mix the rubber foaming raw materials, and then transports them to the molding tank 1 for shaping via a pump and conveying pipe. The heat transfer oil pipe 31 is used to heat the molding tank 1 and the mixing tank 2. Heating the molding tank 1 provides the temperature environment required for the decomposition of the foaming agent and the formation of bubbles. Heating the mixing tank 2 preheats the raw materials, facilitating subsequent foaming. The heat transfer oil pipes 31 on the lower side of the molding tank 1 and the mixing tank 2 are evenly coiled to ensure uniform heating. The left and right parts are... The heat transfer oil pipes 31 are connected by a straight section in the middle to form a closed loop. The delivery pump 33 provides the power to transport the hot oil inside the pipes and enables the oil to circulate in a directional manner. Both heating oil tanks 32 can reheat the heated oil after heat exchange to ensure that the raw materials remain heated stably during mixing, transportation and forming of the components. The control panel 35 detects the temperature in the two heating oil tanks through temperature sensors and provides temperature display and control functions. This, combined with the circulation supply of hot oil and the utilization of waste heat, effectively maintains the stability of the heating effect and saves a certain amount of energy.
[0030] The uniform heating unit 3 also includes infrared sensors 36, heating plates 37, and a PLC controller 38. A vertical row of infrared sensors 36 is embedded in the middle of the inner wall of each side of the molding pool 1. Each row contains three equally spaced infrared sensors 36. A heating plate 37 is embedded on the outer side of the molding pool 1, at a position horizontally corresponding to each infrared sensor 36. The heating plate 37 contains heating wires. A PLC controller 38 is installed on the left side of the front end of the molding pool 1. The heating wires at each heating plate 37 and the infrared sensors 36 are electrically connected to the output of an external power supply through the PLC controller 38. The vertical array of infrared sensors 36 monitors the molding height of the rubber foam sponge. When the infrared sensor 36 detects that the foaming height exceeds the current sensor height, the PLC controller 38 can control the corresponding heating plate 37 to start, heating the foam sponge from the outside. This allows for intelligent control of the heating device's operating range as foaming progresses, achieving intelligent control of the heating effect.
[0031] The raw material mixing unit 4 includes a mounting base 42, a motor 43, a mixing frame 44, and a central rotating shaft 46. The mounting base 42 is installed at the upper end of the mixing tank 2, and the motor 43 is installed at the upper end of the mounting base 42. The output shaft of the motor 43 faces downward and is fixedly connected to the upper end of the central rotating shaft 46 via a coupling. The central rotating shaft 46 is vertically arranged, and the mixing frame 44 is fixedly connected to its outer side. The mounting base 42 is used to install the motor 43, and the motor 43 drives the mixing frame 44 to rotate through the central rotating shaft 46, thereby mixing the foaming raw materials evenly.
[0032] The raw material mixing unit 4 also includes connecting rods 41 and locking blocks 45. Three connecting rods 41 are fixedly connected to the outer circumferential array of the mounting base 42. The outward-facing end of the connecting rod 41 is fixedly connected to the inner wall of the mixing tank 2. Three arc-shaped locking blocks 45 are fixedly connected to the upper edge of the mounting base 42. The three locking blocks 45 are together secured to the outside of the motor 43. The connecting rods 41 are used to fix the mounting base 42 to the upper port of the mixing tank 2, and the locking blocks 45 are used to secure the motor 43.
[0033] It also includes support rods 7, arc-shaped support columns 8, straight prisms 9, and feet 10. A straight prism 9 is fixedly connected to each of the four corners at the lower end of the molding tank 1. Three arc-shaped support columns 8 are fixedly connected in a circular array at the lower end of the mixing tank 2. Support rods 7 are fixedly connected to the lower ends of both heating oil tanks. A foot 10 is fixedly connected to the lower ends of both the arc-shaped support columns 8 and the straight prisms 9. Bolt through holes are provided on the outer side of the foot 10. The straight prisms 9 support the molding tank 1, the arc-shaped support columns 8 support the mixing tank 2, the support rods 7 support the two heating oil tanks, and the feet 10 improve the stability of the molding tank 1 and the mixing tank 2, and can be secured with bolts.
[0034] It also includes a support platform 5 and a fixing frame 6. The support platform 5 is installed at the lower end of the delivery pump 33, supporting the lower side of the delivery pump 33. The fixing frame 6, which is fixedly Ω-shaped, is installed on the upper side of the delivery pump 33. The two ends of the fixing frame 6 are fixedly connected to the support platform 5 by bolts. The support platform 5 is used to support the delivery pump 33, and the fixing frame 6 is used to fasten the delivery pump 33 and reduce the vibration of the delivery pump 33 during operation.
[0035] The working principle of the rubber foaming sponge molding device based on intelligent temperature control provided by this utility model is as follows: This device has a reliable raw material mixing unit 4, a connecting rod 41 for fixing the mounting base 42 to the upper port of the mixing tank 2, a locking block 45 for securing the motor 43, and the mounting base 42 for installing the motor 43. The motor 43 drives the mixing frame 44 to rotate through the central rotating shaft 46, thereby mixing the foaming raw material evenly, which is beneficial to improving the subsequent foaming molding effect. The mixing tank 2 is used to mix the rubber foaming raw material and transport it to the molding tank 1 for shaping through the pump body and conveying pipe. The heat transfer oil pipe 31 is used to heat the molding tank 1 and the mixing tank 2. By heating the molding tank 1, the required temperature environment for foaming agent decomposition and bubble formation can be provided. This device also features a reliable uniform heating unit 3, which preheats the raw materials by heating the mixing tank 2, facilitating subsequent foaming. The heat transfer oil pipes 31 on the lower sides of the molding tank 1 and the mixing tank 2 are evenly coiled, ensuring uniform heating. The left and right sections of the heat transfer oil pipes 31 are connected by a straight section in the middle, forming a closed-loop circulation. The delivery pump 33 provides the power to transport the hot oil inside the pipes and enables directional circulation of the oil. Both heating oil tanks 32 can reheat the heated oil after heat exchange, ensuring stable heating of the raw materials during mixing, conveying, and molding. (Control panel) The PLC controller 38 detects the temperature in the two heating oil tanks using temperature sensors, providing temperature display and control functions. This, combined with the circulating supply of hot oil and waste heat utilization, effectively maintains stable heating performance and saves energy. A vertical array of infrared sensors 36 monitors the molding height of the rubber foam sponge. When the infrared sensor 36 detects that the foaming height exceeds the current sensor height, the PLC controller 38 controls the corresponding heating plate 37 to start, heating the foam sponge from the outside. This allows for intelligent control of the heating device's opening range as foaming progresses. Furthermore, the straight prism 9 supports the molding tank 1, the arc-shaped support column 8 supports the mixing tank 2, the support rod 7 supports the two heating oil tanks, and the feet 10 improve the stability of the molding tank 1 and mixing tank 2, and can be secured with bolts. The support platform 5 supports the delivery pump 33, and the fixing frame 6 secures the delivery pump 33, reducing vibration during operation.
[0036] It is worth noting that, in the above embodiments, the input terminals of the delivery pump 33, the heating devices inside the two heating oil tanks, and the temperature sensor are electrically connected to the output terminal of the external power supply through the control panel 35. The input terminals of the infrared sensor 36 and the heating wire inside the heating plate 37 are electrically connected to the output terminal of the external power supply through the PLC controller 38. The input terminal of the motor 43 is electrically connected to the output terminal of the external power supply through the external control switch group. The control panel 35, the PLC controller 38, and the external control switch group all use methods commonly used in the prior art to control the operation of the corresponding electrical devices.
[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rubber foamed sponge forming device based on intelligent temperature control, characterized by: It includes a molding tank (1), a uniform heating unit (3), and a raw material mixing unit (4); Molding tank (1): It is a square tank with a mixing tank (2) installed on the right side of the tank. A pump and a conveying pipe are installed between the mixing tank (2) and the molding tank (1). Uniform heating unit (3): includes heat transfer oil pipe (31), heating oil tank one (32), delivery pump (33), heating oil tank two (34) and control panel (35). The heat transfer oil pipe (31) consists of three parts. A portion of heat transfer oil pipe (31) is laid on the inner side of the bottom of the molding tank (1) and the mixing tank (2). A portion of heat transfer oil pipe (31) located on the lower side of the mixing tank (2) has a spiral structure. A portion of heat transfer oil pipe (31) located on the lower side of the molding tank (1) has a frame structure with layers connected. The left and right portions of heat transfer oil pipe (31) are connected through the middle straight section and form a closed loop. A heating oil tank one (32) is installed on the lower side of the molding tank (1) and the mixing tank (2). The two middle straight sections of the heat transfer oil pipe (31) pass through the interior of a heating oil tank (32) and the heating oil tank (34) are equipped with heating devices and temperature sensors. A conveying pump (33) is installed below the molding pool (1). The discharge end of the heating oil tank (32) is connected to the inlet end of the conveying pump (33). The discharge end of the conveying pump (33) is connected to the inlet of the adjacent heat transfer oil pipe (31) on the upper side. A control panel (35) is installed on the right side of the front end of the molding pool (1). The control panel (35) includes a digital display screen and a temperature adjustment knob. The heating devices and temperature sensors at the two heating oil tanks are bidirectionally electrically connected to the control panel (35). Raw material mixing unit (4): installed inside the mixing tank (2).
2. The smart temperature control based rubber foamed sponge forming device as claimed in claim 1, wherein: The uniform heating unit (3) also includes an infrared sensor (36), a heating plate (37) and a PLC controller (38). A vertical row of infrared sensors (36) is embedded in the middle of the inner wall of each side of the molding pool (1). There are three infrared sensors (36) in each row, and the spacing between them is equal. A heating plate (37) is embedded in the outer side of the molding pool (1) at a position corresponding to each infrared sensor (36) horizontally. The heating plate (37) is equipped with an electric heating wire inside. A PLC controller (38) is installed on the left side of the front end of the molding pool (1). The electric heating wire and the infrared sensor (36) at each heating plate (37) are electrically connected to the output terminal of the external power supply through the PLC controller (38).
3. The rubber foam sponge molding device based on intelligent temperature control according to claim 1, characterized in that: The raw material mixing unit (4) includes a mounting base (42), a motor (43), a mixing frame (44), and a central rotating shaft (46). The mounting base (42) is installed at the upper port of the mixing tank (2). The motor (43) is installed at the upper end of the mounting base (42). The output shaft of the motor (43) faces downward and is fixedly connected to the upper end of the central rotating shaft (46) through a coupling. The central rotating shaft (46) is vertically arranged and the mixing frame (44) is fixedly connected to the outside.
4. The rubber foam sponge molding device based on intelligent temperature control according to claim 3, characterized in that: The raw material mixing unit (4) also includes connecting rods (41) and locking blocks (45). Three connecting rods (41) are fixedly connected to the outer circumferential array of the mounting base (42). The outward end of the connecting rod (41) is fixedly connected to the inner wall of the mixing barrel (2). Three arc-shaped locking blocks (45) are fixedly connected to the upper edge of the mounting base (42). The three locking blocks (45) are locked together on the outside of the motor (43).
5. The rubber foam sponge molding device based on intelligent temperature control according to claim 1, characterized in that: It also includes support rods (7), arc-shaped support columns (8), straight prisms (9) and feet (10). A straight prism (9) is fixedly connected to each of the four corners of the lower end of the molding pool (1). Three arc-shaped support columns (8) are fixedly connected to the lower end of the mixing tank (2) in a circular array. Support rods (7) are fixedly connected to the lower ends of the two heating oil tanks. A foot (10) is fixedly connected to the lower end of the arc-shaped support column (8) and the straight prism (9). Bolt through holes are opened on the outer side of the foot (10).
6. The rubber foam sponge molding device based on intelligent temperature control according to claim 1, characterized in that: It also includes a support platform (5) and a fixing frame (6). The lower end of the delivery pump (33) is equipped with a support platform (5), which supports the lower side of the delivery pump (33). The upper side of the delivery pump (33) is equipped with a fixed frame (6) in the shape of an Ω. The two ends of the fixing frame (6) are fixedly connected to the support platform (5) by bolts.