A flat vulcanizing machine

By combining heating plate one and heating plate two, along with the design of elastic and driving components, the problem of uneven heating when the mold thickness is different is solved, achieving uniform heating and stability of the mold, and improving the heating efficiency and ease of operation of the flat vulcanizing machine.

CN224446550UActive Publication Date: 2026-07-03SHANGHAI DAHUA PHARM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DAHUA PHARM CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional flat vulcanizing machines are prone to uneven heating when the mold thickness varies, which affects the heating efficiency of the equipment.

Method used

The design employs a combination of heating plate one and heating plate two. Through the cooperation of elastic components and driving components, the mold thickness is automatically adjusted to achieve uniform heating. The design of positioning rods and connecting plates improves the stability and ease of operation of the mold.

Benefits of technology

This technology enables uniform heating of molds with varying thicknesses, improving the heating efficiency and ease of operation of the device, while also enhancing the stability of the molds during the heating process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a flat vulcanizing machine, relating to the field of pharmaceutical vulcanization and shaping. It includes a frame, with fixed rods fixedly mounted on the frame. Support plates are fixedly connected between the fixed rods, and a heating plate is mounted on the support plate. An elastic element is provided between the heating plate and the support plate. Two heating plates are slidably connected vertically along the fixed rods, with the heating plate located between the two heating plates. A connecting plate is fixedly mounted on the fixed rods, slidably connected to the heating plate. A second connecting plate is also slidably connected to the fixed rods, slidably connected to the heating plates. A threaded rod and a motor are vertically mounted on the frame. The threaded rod passes through the connecting plate and the second connecting plate and is rotatably connected to the frame. The threaded rod is threadedly connected to the corresponding second connecting plate. The threaded rod is coaxially fixed to the motor output shaft to drive the heating plate to move closer to or away from the heating plate. This application improves the heating efficiency of the device.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical vulcanization and shaping, and in particular to a flat vulcanizing machine. Background Technology

[0002] Currently, in the pharmaceutical industry, after the drug production is completed, a vulcanizing machine is needed to vulcanize and shape the drug with a silicone rubber outer layer. In traditional equipment, the drug needs to be placed in a corresponding mold during heating, and then the mold is placed into the vulcanizing machine for heating and pressurization to shape the drug.

[0003] Related technology can be found in Chinese Patent No. CN222406746U, which discloses a flat vulcanizing machine, relating to the field of vulcanizing machine technology. The machine includes a base and a heating platform mounted on the base. A cooling platform is fixedly mounted on one side of the heating platform on the base. A pair of chains are mounted above the base and outside the heating and cooling platforms. A pair of mounting brackets for mounting the chains are fixedly mounted on both sides of the base. A movable frame is detachably connected to the pair of chains via a connecting component. The movable frame has a stepped groove for placing the mold, and the stepped groove is larger than the outer contour of the heating and cooling platforms. This invention allows the movable frame to be moved by the pair of chains, enabling the mold to be moved above the heating or cooling platform. This changes the traditional method of manually moving the mold and prevents workers from being burned.

[0004] Regarding the aforementioned technologies, due to wear and tear from daily use and differences in production processes, molds may have varying thicknesses. When multiple molds are pressed and heated simultaneously, uneven heating and pressure can easily occur, affecting the heating effect of the device and hindering the improvement of the device's heating efficiency. Utility Model Content

[0005] To improve the heating efficiency of the device, this application provides a flat vulcanizing machine.

[0006] This application provides a flat vulcanizing machine, which adopts the following technical solution:

[0007] A flat vulcanizing machine includes a frame with several fixed rods vertically fixedly connected to it. A horizontally arranged support plate connects the fixed rods. Several heating plates are provided on both vertical end faces of the support plate. All heating plates are slidably connected to the support plate along the length of the fixed rods. The heating plates are arranged along the width of the support plate and are parallel to each other. An elastic element is provided between the support plate and the heating plates. In its natural state, the elastic element tends to push the heating plates away from the support plate. Two heating plates are slidably connected to the fixed rods along their own axes. The heating plates are located between the two heating plates and are parallel to the heating plates. A driving element is provided on the frame to drive the heating plates to move along the fixed rods.

[0008] By adopting the above technical solution, under the support of the frame, the fixed rod guides and limits the vertical displacement of the second heating plate. The support plate supports the first heating plate, and the elastic element connects and supports the first heating plate, creating a space for movement between the first heating plate and the support plate. The mold is placed on the upper first heating plate and the lower second heating plate. The driving component moves the two second heating plates closer to the support plate, so that one side of the mold contacts the first heating plate and the other side contacts the second heating plate. The first heating plate corresponds to the first mold. When the mold on the upper support plate contacts the upper second heating plate, the second heating plate and the first heating plate work together to press, fix, and heat the mold. When the mold on the lower second heating plate contacts the first heating plate at the lower end of the support plate, the first heating plate and the second heating plate work together to press, fix, and heat the mold. Under the action of the elastic element, the first heating plate automatically adjusts to adapt to the thickness of the mold. Different mold thicknesses ensure that all molds are heated and pressed evenly, which helps to improve the heating efficiency of the device for the mold.

[0009] Optionally, the fixing rod is slidably connected to a connecting plate parallel to the support plate along the vertical direction. The connecting plate is located on the side of the support plate along the width direction. A groove is provided on the side of the connecting plate near the support plate. The groove is parallel to the length direction of the heating plate. The two sides of the support plate are inserted into the groove and slidably connected to the connecting plate along the groove. The heating plate is fixedly provided with protrusions on both sides along the width direction. A connecting plate is fixedly connected to the fixing rod and is parallel to the heating plate. The connecting plate is provided with a groove for accommodating the protrusions. The groove is parallel to the groove. The heating plate is slidably connected to the connecting plate along the groove.

[0010] By adopting the above technical solution, the fixing rod guides and limits the vertical displacement of connecting plate one and connecting plate two, connecting plate one supports the support plate and guides the support plate to move laterally through groove one, which facilitates the placement or removal of molds on the support plate, connecting plate two supports heating plate two and guides the heating plate two to move laterally through groove two, which also facilitates the placement or removal of molds on the support plate, thus improving the ease of operation of the device.

[0011] Optionally, a positioning rod 1 is fixedly provided on the lower end face of the connecting plate, and a positioning rod 2 is fixedly provided on the lower end face of the upper connecting plate 2. Both positioning rod 1 and positioning rod 2 are set parallel to the fixed rod. Positioning holes 1 that are adapted to positioning rod 1 are opened on both sides of the lower heating plate 2, and positioning holes 2 that are adapted to positioning rod 2 are opened on both sides of the support plate. Positioning holes 1 and positioning rod 1 are directly opposite each other, and positioning rod 2 and positioning holes 2 are directly opposite each other.

[0012] By adopting the above technical solution, when the second heating plate approaches the first heating plate, the first positioning rod passes through the first positioning hole, thereby fixing the displacement of the second heating plate below in the horizontal direction. The second positioning rod passes through the second positioning hole, thereby fixing the displacement of the support plate in the horizontal direction, thus fixing the position of the mold on the first and second heating plates, which is beneficial to improving the stability of the mold when the device is heating.

[0013] Optionally, the driving component corresponds one-to-one with the heating plate. The driving component includes a motor and a threaded rod. The threaded rod passes vertically through the first connecting plate and the second connecting plate in sequence and is rotatably connected to the frame. The threaded rod is rotatably connected to the first connecting plate and threadedly connected to the corresponding second connecting plate. The motor is fixedly connected to the fixing rods on both sides of the frame, and the threaded rod is coaxially fixedly connected to the motor output shaft.

[0014] By adopting the above technical solution, when the operator starts one of the motors, the motor drives the threaded rod to rotate. Under the support and guidance of the fixed rod, the connecting plate two drives the heating plate two to move vertically, so that the operator can adjust the position between the heating plate one and the heating plate two.

[0015] Optionally, the end face of the heating plate one away from the support plate and the end face of the heating plate two near the heating plate one are both provided with rectangular grooves for placing the mold. The rectangular grooves are arranged along the length of the heating plate one, and all the rectangular grooves are parallel to each other.

[0016] By adopting the above technical solution, the operator places the mold into the rectangular groove, which limits the mold and helps to improve the stability of the mold when the device is heated.

[0017] Optionally, a sliding plate is slidably connected to one side of the lower end of the rectangular groove along the width direction of the heating plate, and a plurality of elastic elements are fixed between the sliding plate and the inner wall of the rectangular groove. In its natural state, the elastic elements tend to push the sliding plate away from the inner wall of the rectangular groove.

[0018] By adopting the above technical solution, when the operator puts molds of different widths into the rectangular groove, the sliding plate and the inner wall of the rectangular groove cooperate to clamp and fix the mold under the elastic action of the elastic element two, which helps to improve the stability of the mold when the device is heated.

[0019] Optionally, both ends of the support plate and the heating plate can be detachably connected to arc-shaped plates along the length direction. The arc-shaped plates are arranged parallel to the support plate, and the outer side of the arc-shaped plates is covered with a heat insulation layer along the circumferential direction.

[0020] By adopting the above technical solution, when operators need to pick up or place the mold, the curved edge provides a gripping area for the operators, while the heat insulation layer reduces the probability of operators being burned.

[0021] Optionally, a support rod is fixed on the frame, the support rod is parallel to the fixed rod, and an exhaust fan that moves vertically up and down is provided on the support rod, with the exhaust fan facing the gap between heating plate one and heating plate two.

[0022] By adopting the above technical solution, after the device completes the vulcanization of the mold, the device is in a high-temperature state. The operator starts the exhaust fan to blow towards heating plate one and heating plate two to accelerate the cooling of the device, making it easier for the operator to take the mold and improving the efficiency of mold replacement.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Under the support of the frame, the fixed rod guides and limits the vertical displacement of the second heating plate. The support plate supports the first heating plate, and the elastic element connects and supports the first heating plate, creating a space for movement between the first heating plate and the support plate. The mold is placed on the upper first heating plate and the lower second heating plate. The driving component moves the two second heating plates closer to the support plate, so that one side of the mold contacts the first heating plate and the other side contacts the second heating plate. The first heating plate corresponds to the first mold. When the mold on the upper support plate contacts the upper second heating plate, the second heating plate and the first heating plate work together to press, fix, and heat the mold. When the mold on the lower second heating plate contacts the first heating plate at the lower end of the support plate, the first heating plate and the second heating plate work together to press, fix, and heat the mold. Under the action of the elastic element, the first heating plate automatically adjusts to adapt to the thickness of the mold. Different mold thicknesses ensure that all molds are heated and pressed evenly, which helps to improve the heating efficiency of the device for the mold.

[0025] 2. The fixing rod guides and limits the vertical displacement of connecting plate one and connecting plate two. Connecting plate one supports the support plate and guides the support plate to move laterally through groove one, which facilitates the placement or removal of molds on the support plate. Connecting plate two supports heating plate two and guides heating plate two to move laterally through groove two, which also facilitates the placement or removal of molds on the support plate, thus improving the ease of operation of the device.

[0026] 3. When the second heating plate approaches the first heating plate, the first positioning rod passes through the first positioning hole, thereby fixing the horizontal displacement of the second heating plate below. The second positioning rod passes through the second positioning hole, thereby fixing the horizontal displacement of the second heating plate above. This fixes the position of the mold on the first and second heating plates, which helps to improve the stability of the mold when the device is heating. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a flat vulcanizing machine.

[0028] Figure 2This is a schematic diagram designed to highlight the structure of the heating plate.

[0029] Figure 3 This is a schematic diagram designed to highlight the structure of connecting plate one and connecting plate two.

[0030] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Fixing rod; 3. Heating plate one; 31. Support plate; 32. Elastic element one; 33. Rectangular groove; 331. Slide plate; 332. Elastic element two; 34. Connecting plate one; 341. Positioning rod one; 342. Positioning hole one; 35. Groove one; 4. Heating plate two; 41. Connecting plate two; 42. Positioning hole two; 43. Groove two; 44. Protrusion; 45. Positioning rod two; 5. Arc plate; 51. Heat insulation layer; 6. Driving component; 61. Threaded rod; 62. Motor; 7. Support rod; 71. Exhaust fan. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a flat vulcanizing machine. Example

[0033] Reference Figure 1 and Figure 2 A flat vulcanizing machine includes a frame 1. Multiple fixing rods 2 are fixed along the circumference of the frame 1. The fixing rods 2 are perpendicular to the frame 1. A horizontally arranged support plate 31 is connected between the multiple fixing rods 2. Multiple heating plates 3 for heating the mold are installed on both sides of the support plate 31 along the vertical direction. The heating plates 3 are all parallel to the support plate 31. The support plate 31 supports the heating plates 3.

[0034] Reference Figure 1 A connecting plate 34 is provided between the fixed rod 2 and the support plate 31. The connecting plate 34 is fixedly connected to the fixed rod 2. A groove 35 is provided at one end of the connecting plate 34 near the support plate 31. The support plate 31 is inserted into the groove 35 and slidably connected to the connecting plate 34 along the length of the groove 35. When the operator removes the support plate 31, the groove 35 guides the support plate 31, allowing it to move along the length of the groove 35, which improves the ease of use of the device.

[0035] Reference Figure 1 and Figure 3Two heating plates 4 are vertically mounted on the fixed rod 2. A support plate 31 is located between the two heating plates 4. The heating plates 4 are parallel to the heating plate 3. A connecting plate 41 is provided between the heating plates 4 and the fixed rod 2, and the connecting plate 41 is slidably connected to the fixed rod 2 vertically. The heating plates 4 have protrusions 44 on both sides along the horizontal direction, and the protrusions 44 are arranged along the length direction of the heating plates 4. The connecting plate 41 has grooves 43 corresponding to the protrusions 44. The protrusions 44 are inserted into the grooves 43, so that the heating plates 4 move along the length direction of the grooves 43. The connecting plate 41 drives the heating plates 4 to move horizontally, and the grooves 43 guide the displacement of the heating plates 4 along their own length direction, so that the operator can move the heating plates 4 in or out, which improves the convenience of the device.

[0036] Reference Figure 1 and Figure 2 An elastic element 32, which can be a spring, is provided between the support plate 31 and the heating plate 3. The spring applies a pushing force to the heating plate 3 away from the support plate 31. When the heating plate 3 and the heating plate 4 work together to clamp the mold, under the support and limiting effect of the heating plate 4, the mold pushes the heating plate 4 closer to the support plate 31. The moving distance of the heating plate 3 is different for molds of different thicknesses. At this time, the elastic element 32 is in a deformed state and pushes the heating plate 3 to fit against the mold. The spring supports the heating plate 3, so that molds of different thicknesses can fit against both the heating plate 3 and the heating plate 4, thereby making the mold pressurized and heated evenly, which is beneficial to improving the heating efficiency of the mold.

[0037] Reference Figure 1 and Figure 3 Rectangular grooves 33 are provided on the side of heating plate 3 facing away from support plate 31 and the side of heating plate 4 near support plate 31. The rectangular grooves 33 are parallel to support plate 31. A sliding plate 331 is slidably connected to the inner wall of the rectangular groove 33. An elastic element 332, which can be a spring, is fixed between the sliding plate 331 and the inner wall of the rectangular groove 33. When molds of different widths are placed into the rectangular groove 33, the mold compresses the sliding plate 331, and the spring supports the sliding plate 331. This allows the sliding plate 331 and the inner wall of the rectangular groove 33 to clamp and fix the mold, improving the stability of the mold during operation. Furthermore, the position of the sliding plate 331 can be automatically adjusted according to the mold size, making it suitable for different molds.

[0038] Reference Figure 1The frame 1 is equipped with a driving component 6 for driving the second heating plate 4 to move vertically. The driving component 6 includes a motor 62 and a threaded rod 61. The motor 62 is fixedly mounted on the fixed rod 2, and the threaded rod 61 is set parallel to the fixed rod 2. The threaded rod 61 passes through the second connecting plate 41 and the first connecting plate 34 in sequence and is rotatably connected to the frame 1. When the motor 62 is started, it drives the threaded rod 61 to rotate. Under the limiting action of the fixed rod 2, the second heating plate 4 slides up and down along the fixed rod 2, so that the second heating plate 4 gradually approaches and contacts the first heating plate 3. The first heating plate 3 and the second heating plate 4 cooperate to clamp and fix the mold, which helps to improve the stability of the device during operation. When the second heating plate 4 is away from the first heating plate 3, it is easier for the operator to pick up or place the mold, which helps to improve the convenience of the device operation.

[0039] Reference Figure 1 A positioning rod 341 is fixedly provided on the lower end face of the connecting plate 34. The positioning rod 341 is set parallel to the fixing rod 2. Positioning rods 45 are fixedly provided on the lower end faces of both sides of the support plate 31. The positioning rods 45 are parallel to the positioning rods 341. The heating plate 4 has a positioning hole 342 corresponding to the positioning rod 341. When the lower heating plate 4 approaches the heating plate 3, the positioning rod 341 passes through the corresponding positioning hole 342. The positioning hole 342 and the positioning rod 341 cooperate to restrict the displacement of the lower heating plate 4 in the horizontal direction, so that the heating plate 3 and the heating plate 4 are facing each other. Both sides of the support plate 31 have positioning holes 42 corresponding to the positioning rod 45. When the upper heating plate 4 approaches the heating plate 3, the positioning rod 45 is inserted into the corresponding positioning hole 42. The positioning rod 45 and the positioning hole 42 cooperate to restrict the displacement of the support plate 31 in the horizontal direction, so that the heating plate 3 and the heating plate 4 are facing each other, which helps to improve the stability of the device during operation.

[0040] Reference Figure 1 The heating plate 3 and heating plate 4 are detachably connected to curved plates 5 on both sides along their length. Bolts are provided on both sides of the curved plates 5, which are threaded through the curved plates 5 and connected to the heating plate 4 and support plate 31. The side of the curved plate 5 facing away from the arc is a vertical plane, which fits against both ends of the heating plates 3 and 4 along their length. The curved surface provides a gripping area for the operator when handling or placing the mold. A heat insulation layer 51 is circumferentially covered on the surface of the curved plates 5, allowing the operator to grip the curved plates 5 to move or push the heating plates 3 and 4 in, while reducing the probability of burns.

[0041] Reference Figure 1A support rod 7 is fixed vertically on the frame 1, and an exhaust fan 71 is slidably connected vertically on the support rod 7. The exhaust fan 71 is aligned with the gap between the heating plate 3 and the heating plate 4. After the device heats the mold, the exhaust fan 71 is activated so that it is directly facing the mold. The airflow accelerates the cooling of the mold, reduces the temperature of the device and the outer surface of the mold, which helps to reduce the probability of the operator being burned and improves the safety of the device during use.

[0042] The implementation principle of a flat vulcanizing machine according to an embodiment of this application is as follows: The operator pulls the heating plate 3 and the heating plate 4 and places the mold into the rectangular groove 33, pushes back the heating plate 3 and the heating plate 4, and starts the motor 62 in sequence to make the heating plate 4 move closer to the heating plate 3. All the positioning rods 341 are inserted into the corresponding positioning holes 342, and all the positioning rods 45 are inserted into the corresponding positioning holes 42. Under the support of the spring, the heating plate 3 and the heating plate 4 cooperate to clamp the mold, so that the mold is pressed and heated evenly. After heating is completed, the exhaust fan 71 is started to cool the mold. During the heating process, the device can heat molds with different thicknesses and widths evenly at the same time without replacing the device, which is beneficial to improving the heating efficiency and applicability of the device.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flat press comprising a frame (1), characterized in that: The frame (1) is vertically fixedly connected to several fixed rods (2), and horizontally arranged support plates (31) are connected between the fixed rods (2). Several heating plates (3) are provided on both vertical end faces of the support plates (31). All heating plates (3) are slidably connected to the support plates (31) along the length direction of the fixed rods (2). The heating plates (3) are arranged along the width direction of the support plates (31) and are parallel to each other. An elastic element (32) is provided between the support plates (31) and the heating plates (3). The elastic element (32) has a tendency to push the heating plates (3) away from the support plates (31) in its natural state. Two heating plates (4) are slidably connected to the fixed rods (2) along their own axis. The heating plates (3) are located between the two heating plates (4). The heating plates (4) are parallel to the heating plates (3). The frame (1) is provided with a driving element (6) for driving the heating plates (4) to move along the fixed rods (2).

2. A press according to claim 1, characterized in that: The fixing rod (2) is slidably connected to a connecting plate (34) parallel to the support plate (31) in the vertical direction. The connecting plate (34) is located on the side of the support plate (31) in the width direction. The connecting plate (34) has a groove (35) on the side near the support plate (31). The groove (35) is parallel to the length direction of the heating plate (3). The two sides of the support plate (31) are inserted into the groove (35) and slidably connected to the connecting plate (34) along the groove (35). The heating plate (4) has protrusions (44) fixed on both sides in the width direction. The fixing rod (2) is fixedly connected to a connecting plate (41) parallel to the heating plate (4). The connecting plate (41) has a groove (43) for accommodating the protrusions (44). The groove (43) is parallel to the groove (35). The heating plate (4) is slidably connected to the connecting plate (41) along the groove (43).

3. A press according to claim 2, characterized in that: The lower end face of the connecting plate 1 (34) is fixed with a positioning rod 1 (341), and the lower end face of the upper connecting plate 2 (41) is fixed with a positioning rod 2 (45). The positioning rod 1 (341) and the positioning rod 2 (45) are both parallel to the fixing rod (2). The lower heating plate 2 (4) has a positioning hole 1 (342) on both sides that is compatible with the positioning rod 1 (341). The support plate (31) has a positioning hole 2 (42) on both sides that is compatible with the positioning rod 2 (45). The positioning hole 1 (342) is directly opposite to the positioning rod 1 (341), and the positioning rod 2 (45) is directly opposite to the positioning hole 2 (42).

4. A press according to claim 1, characterized in that: The driving component (6) corresponds to the heating plate (3). The driving component (6) includes a motor (62) and a threaded rod (61). The threaded rod (61) passes vertically through the connecting plate (34) and the connecting plate (41) in sequence and is rotatably connected to the frame (1). The threaded rod (61) is rotatably connected to the connecting plate (34) and threadedly connected to the corresponding connecting plate (41). The motor (62) is fixedly connected to the fixing rods (2) on both sides of the frame (1). The threaded rod (61) is coaxially fixedly connected to the output shaft of the motor (62).

5. A flat press according to claim 1, characterized in that: The end face of the heating plate one (3) away from the support plate (31) and the end face of the heating plate two (4) near the heating plate one (3) are both provided with rectangular grooves (33) for placing the mold. The rectangular grooves (33) are arranged along the length of the heating plate one (3) and all the rectangular grooves (33) are parallel to each other.

6. A press according to claim 5, characterized in that: The lower end of the rectangular groove (33) is slidably connected to a sliding plate (331) along one side of the width direction of the heating plate (3). A plurality of elastic elements (332) are fixed between the sliding plate (331) and the inner wall of the rectangular groove (33). The elastic elements (332) have a tendency to push the sliding plate (331) away from the inner wall of the rectangular groove (33) in a natural state.

7. A press according to claim 1, characterized in that: Both ends of the support plate (31) and the heating plate (4) along the length direction are detachably connected to arc plates (5). The arc plates (5) are set parallel to the support plate (31), and the outer side of the arc plates (5) is covered with a heat insulation layer (51) along the circumferential direction.

8. A press according to claim 1, characterized in that: A support rod (7) is fixed on the frame (1). The support rod (7) is parallel to the fixed rod (2). An exhaust fan (71) that moves vertically is provided on the support rod (7). The gap between the exhaust fan (71) and the first heating plate (3) and the second heating plate (4) is directly opposite.