Self-heating stainless steel model for condom production
By using self-heating stainless steel molds, the problem of high energy consumption of glass molds has been solved, achieving energy saving and improved product quality in condom production, and extending the service life of equipment.
Patent Information
- Application Number
- CN202423264232.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Existing condom production models use glass materials, resulting in high energy consumption and slow heating and cooling, which cannot meet the requirements of energy-saving and green manufacturing.
It adopts a self-heating stainless steel model, which is hollow inside and filled with a heat-conducting medium. It is equipped with a heater and a thermal sensor to achieve precise temperature control and reduce ineffective energy consumption.
This achieves energy savings in the condom production process, improves product quality, reduces defect rates, and extends equipment lifespan.
Smart Images
Figure CN223589877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condom production models, and in particular to a self-heating stainless steel model for condom production. Background Technology
[0002] Condom molds are important production tools in the condom production process. Condoms are made of materials such as latex and water-based polyurethane. After the mold is washed, it is immersed in a latex tank filled with liquid latex, baked at high temperature, immersed again, and dried. This process is repeated three times before the condom is demolded and inspected to complete the production of the condom.
[0003] Currently, condom production molds are generally made of glass. However, many stages of condom production require heating. Glass molds are characterized by thick walls, poor thermal conductivity, and slow heating and cooling. These characteristics are important factors contributing to the high energy consumption in this industry. In the current context of energy conservation and green manufacturing, energy conservation is an important demand and development trend for the future development of enterprises. Utility Model Content
[0004] To further improve energy efficiency, this application provides a self-heating stainless steel mold for condom production.
[0005] This application provides a self-heating stainless steel mold for condom production, employing the following technical solution:
[0006] A self-heating stainless steel model for condom production includes a model body, which is made of stainless steel and has a hollow interior forming a filling cavity. The filling cavity is filled with a heat-conducting medium. One end of the model body is open and has a plunger. A heater is installed on the plunger, which is located inside the filling cavity.
[0007] Optionally, the plunger is provided with a thermal sensor located in the filling cavity, and the heater is electrically connected to a thermal sensor switch and a controller. The thermal sensor is used to transmit a temperature signal to the controller, and the controller controls the thermal sensor switch to open and close.
[0008] Optionally, the thermally conductive medium is graphite, thermally conductive plastic particles, or aluminum powder particles.
[0009] Optionally, the heater includes a heating wire located at the center of the filling cavity and extending to an end close to the model body.
[0010] Optionally, one end of the heater extends out of the model body to form an electrical contact component.
[0011] Optionally, an outer cover is fitted over the bottom of the model body, one end of which is open and fitted with a sealing sleeve, which is fitted over the model body.
[0012] Optionally, the model body has an outwardly flared protrusion.
[0013] Optionally, the outer cover is fitted with a latch that is threadedly connected thereto, the latch having a pressing part that presses down on the sealing sleeve.
[0014] Optionally, one side of the sealing sleeve abuts against the pressing part, and the other side of the sealing sleeve abuts against the protrusion.
[0015] Optionally, the wall thickness of the model body is 0.5-1.2 mm.
[0016] In summary, this application includes at least one of the following beneficial technical effects:
[0017] 1. By setting a heater inside the model body, the model can be self-heated, achieving precise temperature control and effectively reducing heat waste, thereby achieving good energy saving.
[0018] 2. The electrically heated self-heating condom model eliminates unnecessary and ineffective energy consumption;
[0019] 3. The stainless steel mold allows for more precise temperature control, resulting in improved quality condoms and effectively reducing the production of defective condoms.
[0020] 4. Condom manufacturers' production equipment, such as chains and mounting bases, avoids the baking in high-temperature ovens, thus increasing their service life. Attached Figure Description
[0021] Figure 1 This is an overall structural diagram of Example 1.
[0022] Figure 2 This is an overall structural diagram of Example 2.
[0023] Figure 3 This is a diagram showing the connection structure between the heat-conducting strip and the heater in Example 3.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Model body; 2. Filling cavity; 3. Heat transfer medium; 4. Plunger; 5. Heater; 6. Electrical contact component; 7. Thermal sensor; 8. Outer cover; 9. Sealing sleeve; 10. Lock; 11. Protrusion; 12. Pressing part; 13. Heat transfer strip; 14. Slide rod; 15. Shaft. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0027] Example 1
[0028] A self-heating stainless steel mold for condom production, such as Figure 1 As shown, the model includes a model body 1, which is made of stainless steel and has a hollow interior forming a filling cavity 2. The shape of the model body 1 is consistent with that of a condom. One end of the model body 1 is closed and the other end is open. The filling cavity 2 of the model body 1 is filled with a heat-conducting medium 3. A plunger 4 is provided at the open end of the model body 1 to prevent the heat-conducting medium 3 from falling out. A heater 5 is provided on the plunger 4 and is located inside the filling cavity 2. In this embodiment, the heater 5 is an electric heating wire. The heating of the electric heating wire can evenly transfer heat to the model body 1 through the heat-conducting medium 3, realizing the self-heating of the model body 1. The heating of the model body 1 is uniform, which ultimately meets the heating requirements in the condom production process. Uniform heating effectively improves the final production quality of the condom. In this embodiment, the wall thickness of the model body 1 is 0.5-1.2mm. The model body 1 has thermal conductivity, fast heat transfer speed, small temperature gradient, and has the characteristics of corrosion resistance, thermal shock resistance, and oxidation resistance.
[0029] like Figure 1 As shown, in this embodiment, the heater 5 is long and has an electric heating wire. The heater 5 is located in the center of the filling cavity 2. The end of the heater 5 extends to the closed end near the model body 1. In this way, when the heater 5 heats, the distance from which the heat reaches the outer wall of the model body 1 is basically the same, ensuring that the heat transfer time is close, thereby achieving a more uniform heating purpose. One end of the heater 5 extends out of the model body 1 to form an electrical contact component 6. The electrical contact component 6 is used to connect to the power supply on the production line to achieve power supply.
[0030] like Figure 1 As shown, the thermally conductive medium 3 is graphite, thermally conductive plastic particles, or aluminum powder particles. Taking graphite as an example, its thermal conductivity exceeds that of metals such as steel. The medium possesses characteristics of good thermal conductivity / low thermal resistance, light weight, and aging resistance. It exhibits good chemical stability at room temperature and is resistant to corrosion from acids, alkalis, and organic solvents. It has good plasticity and toughness, and can adapt to various shapes. It has good thermal shock resistance, and can withstand drastic temperature changes without damage when used at room temperature. During sudden temperature changes, the volume change is small, and no cracks are generated. The model is lightweight; for example, the density of aluminum is 3-4 times that of graphite. Specific heat capacity: At room temperature, the specific heat capacity of the filler is 0.71 J / (g·K), while the constant-volume specific heat capacity of stainless steel is between 0.4-0.6 J / (g·℃).
[0031] The heat-conducting medium 3 rapidly and evenly transfers the heat emitted by the heater 5 to the outer shell of the model, achieving advantages such as constant temperature, fast heating speed, high temperature control accuracy, and long service life. It can raise the temperature to the required constant temperature in a short time, resulting in high production efficiency. Precise temperature control within the required range ensures production quality. It can operate continuously for thousands of hours, reducing equipment replacement and maintenance costs.
[0032] like Figure 1 As shown, a thermal sensor 7 is also installed on the plunger 4. The thermal sensor 7 is located inside the filling cavity 2. The thermal sensor 7 is used to sense the temperature inside the filling cavity 2 in a timely manner. A thermal sensing switch and a controller are electrically connected to the heater 5. After sensing the temperature, the thermal sensor transmits the temperature signal to the controller. The controller controls the opening and closing of the thermal sensing switch. In this way, when the temperature is insufficient, the heater 5 can be automatically turned on to continue heating. When the temperature is reached, the heater 5 can be automatically turned off, effectively reducing energy waste and achieving better energy-saving effect.
[0033] The plunger 4 is used to seal the heat-conducting medium 3 inside the model body 1. It also serves as the mounting platform for the heater 5 and the thermal sensor 7, which are installed and fixed by the plunger 4. The plunger 4 also provides vibration protection.
[0034] like Figure 1 As shown, an outer cover 8 is fitted onto the bottom of the model body 1. One end of the outer cover 8 is open and has a sealing sleeve 9. The sealing sleeve 9 is fitted onto the model body 1, and a locking buckle 10 is threadedly connected to the outer cover 8. The sealing sleeve 9, the locking buckle 10, and the outer cover 8 together constitute the support body of the model base, which is locked and fixed to the opening of the model by threaded fastening. At the same time, the support body formed by the sealing sleeve 9, the locking buckle 10, and the outer cover 8 is the mounting component for installing the model onto the condom production line.
[0035] like Figure 1 As shown, an outwardly expanding protrusion 11 is provided at one end of the model body 1 with an opening, and a pressing part 12 for pressing the sealing sleeve 9 is provided on the latch 10. One side of the sealing sleeve 9 abuts against the protrusion 11, and the other side abuts against the pressing part 12. After the sealing sleeve 9 is squeezed and tightened, the sealing performance at the connection can be further improved.
[0036] This embodiment eliminates unnecessary and ineffective energy consumption, achieving energy savings of over 30% and saving over 100 tons of natural gas annually. Production line optimization reduces the need for baking equipment and space; because the stainless steel mold allows for more precise temperature control, the quality of produced condoms is improved, effectively reducing the production of defective condoms. Condom manufacturers reduce energy consumption, lower pollution emissions, and alleviate environmental pressure. Production equipment such as chains and mounting brackets in condom manufacturing avoids high-temperature baking ovens, increasing their lifespan.
[0037] Example 2
[0038] A self-heating stainless steel mold for condom production, such as Figure 2As shown, the main difference between this embodiment and Embodiment 1 is that a heat-conducting strip 13 extends from the side wall of the heater 5. The heat-conducting strip 13 is inclined downwards and multiple heat-conducting strips 13 are spaced apart along the length of the heater 5. The heat-conducting strips 13 are symmetrically arranged. With the further arrangement of the heat-conducting strips 13, the heat conduction efficiency is further improved. The heat-conducting strips 13 can more fully transfer heat to the heat-conducting medium 3. Moreover, the heat-conducting strips 13, which are inclined downwards, also have a certain degree of anti-detachment. The heater 5 is not easy to loosen, which improves the installation firmness of the heater 5 on the plunger 4.
[0039] Example 3
[0040] A self-heating stainless steel mold for condom production, such as Figure 3 As shown, the main difference between this embodiment and embodiment 2 lies in the connection method between the heat-conducting strip 13 and the heater 5. In this embodiment, the central shaft 15 of the heat-conducting strip 13 is rotatably connected to the heater 5, and a slide rod 14 is slidably connected to the heater 5 along its length. One end of the heat-conducting strip 13 is movably hinged to the slide rod 14, and the other end of the heat-conducting strip 13 is located inside the heat-conducting medium 3. One end of the slide rod 14 extends out of the outer cover 8 for easy operation and adjustment. In actual use, the specific orientation of the heat-conducting strip 13 can be adjusted by sliding the slide rod 14 to achieve a better heat conduction effect, and the operation is simple and convenient.
[0041] 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 self-heating stainless steel mold for condom production, comprising a mold body (1), characterized in that: The model body (1) is made of stainless steel and has a hollow interior forming a filling cavity (2). The filling cavity (2) is filled with a heat-conducting medium (3). One end of the model body (1) is open and is provided with a plunger (4). A heater (5) is provided on the plunger (4) and located inside the filling cavity (2).
2. The self-heating stainless steel mold for condom production according to claim 1, characterized in that: The plunger (4) is provided with a thermal sensor located in the filling cavity (2). The heater (5) is electrically connected to a thermal sensor switch and a controller. The thermal sensor is used to transmit temperature signals to the controller, and the controller controls the thermal sensor switch to open and close.
3. The self-heating stainless steel mold for condom production according to claim 2, characterized in that: The thermally conductive medium (3) is graphite, thermally conductive plastic particles, or aluminum powder particles.
4. The self-heating stainless steel mold for condom production according to claim 1, characterized in that: The heater (5) includes a heating wire located at the center of the filling cavity (2) and extending to the end near the model body (1).
5. A self-heating stainless steel mold for condom production according to claim 1, characterized in that: One end of the heater (5) extends out of the model body (1) to form an electrical contact component (6).
6. The self-heating stainless steel mold for condom production according to claim 1, characterized in that: The bottom end of the model body (1) is fitted with an outer cover (8), one end of which is open and fitted with a sealing sleeve (9), which is fitted over the model body (1).
7. A self-heating stainless steel mold for condom production according to claim 6, characterized in that: The model body (1) has an outwardly flared protrusion (11).
8. A self-heating stainless steel mold for condom production according to claim 7, characterized in that: The outer cover (8) is fitted with a latch (10) that is threadedly connected to it, and the latch (10) has a pressing part (12) that presses down on the sealing sleeve (9).
9. A self-heating stainless steel mold for condom production according to claim 8, characterized in that: One side of the sealing sleeve (9) abuts against the pressing part (12), and the other side of the sealing sleeve (9) abuts against the protrusion (11).
10. A self-heating stainless steel mold for condom production according to claim 1, characterized in that: The wall thickness of the model body (1) is 0.5-1.2 mm.