Film pressing wheel for high polymer material vacuum film pressing machine and temperature control mode of film pressing wheel

Abstract

The film pressing wheel comprises a film pressing roller, a left shaft head and a right shaft head are arranged on the left side and the right side of the film pressing roller respectively, a plurality of through holes are formed in the film pressing roller, a plurality of temperature sensing rods are arranged on the left side of the left shaft head, and a plurality of temperature sensing rods are arranged on the right side of the right shaft head. One end, close to the left shaft head, of each temperature sensing rod penetrates through the left shaft head and extends into the through hole, the number of the temperature sensing rods is three, the lengths of the three temperature sensing rods are 100 mm, 340 mm and 580 mm respectively, a wire connector is arranged on the left side of the left shaft head, and the output end of each temperature sensing rod is electrically connected with a temperature sensing wire. By arranging the left shaft head, the right shaft head and the structure that the through holes are formed in the film pressing roller, a physical space and an installation foundation are provided for built-in of the temperature sensing rod and the heater, the core problem that a temperature sensing element is transferred to the interior of the film pressing roller from the external environment is solved, and a foundation is laid for follow-up precise temperature measurement.

Description

Technical Field

[0001] This invention relates to the field of molding machine accessories technology, specifically to a molding wheel for a polymer material vacuum molding machine and its temperature control method. Background Technology

[0002] Pressing rollers, also known as silicone rollers or edge rollers, are a pair of rollers that are installed on both sides of the heating plate of a vacuum laminator and can roll. During the lamination process, the vacuum pump starts to work, and the pressing rollers press tightly against the substrate to be laminated under pressure.

[0003] For example, the patent application number published on the China Patent Network is 201520965323.4, and the patent name is: Double Pressure Roller Set Lamination Machine. It includes a frame, on which an upper plate area and a lamination area are vertically arranged from right to left. At the same height as the upper plate area, two sets of parallel and connected pressure roller sets, No. 1 and No. 2, are arranged, so that the PCB board passes through the No. 1 pressure roller set and the No. 2 pressure roller set to complete the lamination process. This utility model has a simple structure, and the two pressure roller sets can be set with different pressures and temperatures and can be adjusted more flexibly, reducing lamination quality problems caused by excessively high or low temperatures (pressures).

[0004] However, existing vacuum pressure rollers use external temperature probes for temperature measurement, which are easily affected by the external environment. When the equipment is evacuated, air will flow out of the cavity quickly, causing frequent temperature fluctuations, resulting in measurement errors and affecting the failure rate.

[0005] Therefore, it is necessary to redesign and modify the pressing wheel and its temperature control method for the vacuum pressing machine for polymer materials. Summary of the Invention

[0006] To address the problems mentioned in the background art, the present invention aims to provide a pressing wheel for a vacuum pressing machine for polymer materials and its temperature control method, which has the advantage of improving temperature measurement accuracy. It solves the problem that existing vacuum pressing wheels use external temperature probes for temperature measurement, which are easily affected by the external environment. When the equipment is evacuated, air in the cavity will flow out rapidly, causing frequent temperature fluctuations, resulting in measurement errors and affecting the failure rate.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pressing roller for a vacuum pressing machine for polymer materials and its temperature control method, comprising a pressing roller;

[0008] The left and right sides of the pressing roller are respectively provided with a left shaft head and a right shaft head. The inside of the pressing roller is provided with several through holes. The left side of the left shaft head is provided with several temperature sensing rods. The end of the temperature sensing rod near the left shaft head passes through the left shaft head and extends into the inside of the through hole.

[0009] As a preferred embodiment of the present invention, the number of temperature sensing rods is three, and the lengths of the three temperature sensing rods are 100mm, 340mm and 580mm respectively.

[0010] As a preferred embodiment of the present invention, a connector is provided on the left side of the left shaft head, and a temperature sensing wire is electrically connected to the output end of the temperature sensing rod. The end of the temperature sensing wire away from the temperature sensing rod is electrically connected to the connector.

[0011] As a preferred embodiment of the present invention, a plurality of grooves are provided on the left side of the left shaft head, the grooves are interconnected with the inner surface of the left shaft head, and the temperature sensing wire is embedded inside the grooves and extends through the left shaft head.

[0012] As a preferred embodiment of the present invention, a heater is provided on the right side of the right shaft head, and the input end of the heater is electrically connected to a cable. The end of the heater near the right shaft head passes through the right shaft head and the pressing roller in sequence and extends into the interior of the pressing roller.

[0013] As a preferred embodiment of the present invention, bolts are provided on the left side of the left shaft head and the right side of the right shaft head, and the inner side of the bolts passes through the left shaft head and the right shaft head in sequence and is threadedly connected to the pressure roller.

[0014] A pressure roller for a vacuum laminator for polymer materials and its temperature control method.

[0015] S1: During operation, the heater installed on the right shaft head extends into the inside of the pressing roller to heat the roller body and raise its temperature.

[0016] S2: Three temperature sensing rods with lengths of 100mm, 340mm and 580mm respectively are inserted from the left side of the left shaft head and extend into through holes of different depths inside the pressing roller. They are connected to the connector on the left shaft head through temperature sensing wires to transmit temperature signals to the external control system, realizing multi-point real-time temperature monitoring.

[0017] S3: The control system compares the real-time temperature data fed back by the temperature sensor with the set temperature value and dynamically adjusts the power of the heater to form a closed-loop temperature control process.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention provides physical space and installation basis for the built-in temperature sensing rod and heater by setting a left shaft head, a right shaft head and opening a through hole inside the pressure roller. It solves the core problem of transferring the temperature sensing element from the external environment to the inside of the pressure roller, and lays the foundation for subsequent accurate temperature measurement.

[0020] 2. By setting three temperature sensing rods of different lengths, which can be distributed at different depths inside the pressing roller, this invention achieves the effect of synchronous and multi-point monitoring of the temperature in different areas along the axial direction of the pressing roller. This solves the problem that single-point temperature measurement may not be able to reflect the overall temperature uniformity of the roller, thus providing comprehensive data support for more accurate temperature control.

[0021] 3. By setting a connector on the left side of the left shaft head and electrically connecting the temperature sensing rod to it via a temperature sensing wire, this invention achieves the orderly collection and stable transmission of signals from the built-in temperature sensing rod. It also serves to concentrate and neatly lead out the sensitive temperature signal lines, solving the problem of messy and easily damaged wiring and improving the reliability and convenience of electrical connections.

[0022] 4. This invention provides a dedicated wiring path and protective space for the temperature sensing wire by opening a groove on the left side of the left shaft head and embedding the temperature sensing wire therein. This achieves a compact and uniform wiring layout, solves the problem that the wire may be damaged on the shaft head surface due to winding and friction, and avoids affecting the normal rotation of the pressure roller due to wire interference.

[0023] 5. By setting a heater on the right side of the right shaft head and having its cable pass through the right shaft head into the inside of the pressing roller, the present invention realizes the direct and uniform generation and transfer of heat from inside the pressing roller, solving the problems of low thermal efficiency and uneven roller surface temperature of traditional external heating methods, and achieving a heating effect of rapid and efficient heating and more uniform temperature distribution.

[0024] 6. By setting bolts on the outer sides of the left and right shaft heads, the present invention can connect them to the pressure roller by thread, forming a detachable and sturdy whole. This achieves the function of compactly and stably assembling the left shaft head, pressure roller, and right shaft head together, solving the safety hazards that may be caused by unreliable component connections, and also facilitating subsequent maintenance and component replacement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a side view of the structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structural separation of the present invention;

[0028] Figure 4 This is a schematic diagram of the side view of the separated structure of the present invention;

[0029] Figure 5 This is a partial structural diagram of the present invention;

[0030] Figure 6 For the present invention Figure 5Enlarged structural diagram at point A in the middle.

[0031] In the diagram: 1. Pressing roller; 2. Left shaft head; 3. Right shaft head; 4. Through hole; 5. Temperature sensing rod; 6. Connector; 7. Temperature sensing wire; 8. Cable groove; 9. Heater; 10. Cable; 11. Bolt. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 6 As shown, the present invention provides a pressing roller for a vacuum pressing machine for polymer materials and its temperature control method, including a pressing roller 1;

[0034] The left and right sides of the pressing roller 1 are respectively provided with a left shaft head 2 and a right shaft head 3. The inside of the pressing roller 1 is provided with several through holes 4. Several temperature sensing rods 5 are provided on the left side of the left shaft head 2. The end of the temperature sensing rod 5 near the left shaft head 2 passes through the left shaft head 2 and extends into the inside of the through hole 4.

[0035] refer to Figure 3 There are three temperature sensing rods 5, and the lengths of the three temperature sensing rods 5 are 100mm, 340mm and 580mm respectively.

[0036] As a technical optimization of the present invention, by setting three temperature sensing rods 5 of different lengths, which can be distributed at different depths inside the pressing roller 1, the temperature of different areas along the axial direction of the pressing roller 1 can be monitored synchronously and at multiple points. This solves the problem that single-point temperature measurement may not be able to reflect the overall temperature uniformity of the roller, thus providing comprehensive data support for more accurate temperature control.

[0037] refer to Figure 3 A connector 6 is provided on the left side of the left shaft head 2. The output end of the temperature sensing rod 5 is electrically connected to the temperature sensing wire 7. The end of the temperature sensing wire 7 away from the temperature sensing rod 5 is electrically connected to the connector 6.

[0038] As a technical optimization of the present invention, by setting a connector 6 on the left side of the left shaft head 2 and electrically connecting the temperature sensing rod 5 to it through the temperature sensing wire 7, the orderly collection and stable transmission of the signal of the built-in temperature sensing rod 5 are realized. This achieves the function of concentrating and neatly leading out the sensitive temperature signal line, solving the problem of messy and easily damaged lines, and improving the reliability and convenience of electrical connection.

[0039] refer to Figure 6Several grooves 8 are provided on the left side of the left shaft head 2. The grooves 8 are connected to the inner surface of the left shaft head 2. The temperature sensing wire 7 is embedded in the grooves 8 and extends through the left shaft head 2.

[0040] As a technical optimization of the present invention, by opening a wire groove 8 on the left side of the left shaft head 2 and embedding the temperature sensing wire 7 therein, a dedicated wiring path and protection space are provided for the temperature sensing wire 7, achieving the effect of compact and neat wiring layout, solving the problem that the wire may be damaged on the surface of the shaft head due to winding and friction, and avoiding the normal rotation of the pressure roller due to wire interference.

[0041] refer to Figure 3 A heater 9 is provided on the right side of the right shaft head 3. The input end of the heater 9 is electrically connected to a cable 10. The end of the heater 9 near the right shaft head 3 passes through the right shaft head 3 and the pressure roller 1 in sequence and extends into the interior of the pressure roller 1.

[0042] As a technical optimization of the present invention, by setting a heater 9 on the right side of the right shaft head 3 and having its cable 10 pass through the right shaft head 3 into the inside of the pressing roller 1, heat is generated and transferred directly and uniformly from the inside of the pressing roller 1, which solves the problems of low thermal efficiency and uneven roller surface temperature of the traditional external heating method, and achieves a heating effect of rapid and efficient heating and more uniform temperature distribution.

[0043] refer to Figure 3 Bolts 11 are provided on the left side of the left shaft head 2 and the right side of the right shaft head 3. The inner side of the bolts 11 passes through the left shaft head 2 and the right shaft head 3 in sequence and is threadedly connected to the pressure roller 1.

[0044] As a technical optimization of the present invention, bolts 11 are provided on the outside of the left shaft head 2 and the right shaft head 3 to connect them to the pressure roller 1 by thread, forming a detachable and sturdy whole. This achieves the function of assembling the left shaft head 2, the pressure roller 1, and the right shaft head 3 together in a compact and stable manner, solving the safety hazards that may be caused by unreliable component connections, and also facilitating subsequent maintenance and component replacement.

[0045] refer to Figure 1 A pressure roller for a vacuum laminator for polymer materials and its temperature control method, comprising the following steps:

[0046] S1: During operation, the heater 9 installed on the right shaft head 3 will extend into the inside of the pressing roller 1 to heat the roller body and raise the roller body temperature;

[0047] S2: Three temperature sensing rods 5 with lengths of 100mm, 340mm and 580mm respectively are inserted from the left side of the left shaft head 2 and extend into the through holes 4 at different depths inside the pressure roller 1. They are connected to the connector 6 on the left shaft head 2 through the temperature sensing wire 7 to transmit the temperature signal to the external control system and realize multi-point real-time temperature monitoring.

[0048] S3: The control system compares the real-time temperature data fed back by the temperature sensing rod 5 with the set temperature value and dynamically adjusts the power of the heater 9 to form a closed-loop temperature control process.

[0049] The working principle and usage process of this invention: The core component of the pressing roller is the pressing roller 1, which has a left shaft head 2 and a right shaft head 3 on its left and right sides, respectively. During operation, the heater 9 installed on the right shaft head 3 extends into the pressing roller 1 to heat the roller body. To accurately measure the temperature, three temperature sensing rods 5 with lengths of 100mm, 340mm, and 580mm are inserted from the left side of the left shaft head 2 and extend into through holes 4 at different depths inside the pressing roller 1, realizing multi-point real-time monitoring of the roller body temperature. These temperature sensing rods 5 are connected to the connector on the left shaft head 2 through temperature sensing wires 7. 6. The temperature signal is then transmitted to the external control system, forming a closed loop in the entire temperature control process. The control system compares the real-time temperature data fed back by the temperature sensing rod 5 with the set temperature value and dynamically adjusts the power of the heater 9. This built-in temperature measurement method allows the temperature detection to occur directly inside the pressing roller 1, effectively avoiding temperature measurement fluctuations caused by violent air flow in the cavity during the vacuuming process. This significantly improves the accuracy of temperature measurement and the stability of temperature control, ensuring the quality of the polymer material pressing process and reducing the failure rate of the equipment caused by inaccurate temperature control.

[0050] In summary, the pressure roller and its temperature control method for this polymer material vacuum pressing machine, through the structure of setting the left shaft head 2, the right shaft head 3, and opening the through hole 4 inside the pressure roller 1, provide physical space and installation basis for the built-in temperature sensing rod 5 and heater 9, solve the core problem of transferring the temperature sensing element from the external environment to the inside of the pressure roller 1, and lay the foundation for subsequent accurate temperature measurement.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A pressing roller for a vacuum pressing machine for polymer materials, comprising a pressing roller (1); Its features are: The left and right sides of the pressing roller (1) are respectively provided with a left shaft head (2) and a right shaft head (3). The pressing roller (1) has several through holes (4) inside. The left side of the left shaft head (2) is provided with several temperature sensing rods (5). The end of the temperature sensing rod (5) near the left shaft head (2) passes through the left shaft head (2) and extends into the through hole (4).

2. The pressing wheel for a polymer material vacuum pressing machine according to claim 1, characterized in that: The number of the temperature sensing rods (5) is three, and the lengths of the three temperature sensing rods (5) are 100mm, 340mm and 580mm respectively.

3. The pressing wheel for a polymer material vacuum pressing machine according to claim 1, characterized in that: A connector (6) is provided on the left side of the left shaft head (2), and a temperature sensing wire (7) is electrically connected to the output end of the temperature sensing rod (5). The end of the temperature sensing wire (7) away from the temperature sensing rod (5) is electrically connected to the connector (6).

4. The pressing wheel for a polymer material vacuum pressing machine according to claim 3, characterized in that: The left shaft head (2) has several grooves (8) on its left side. The grooves (8) are connected to the inner surface of the left shaft head (2). The temperature sensing wire (7) is embedded in the grooves (8) and extends through the left shaft head (2).

5. The pressing wheel for a polymer material vacuum pressing machine according to claim 1, characterized in that: A heater (9) is provided on the right side of the right shaft head (3). The input end of the heater (9) is electrically connected to a cable (10). The end of the heater (9) near the right shaft head (3) passes through the right shaft head (3) and the pressure roller (1) in sequence and extends into the interior of the pressure roller (1).

6. The pressing wheel for a polymer material vacuum pressing machine according to claim 1, characterized in that: Bolts (11) are provided on the left side of the left shaft head (2) and the right side of the right shaft head (3). The inner side of the bolts (11) passes through the left shaft head (2) and the right shaft head (3) in sequence and is threadedly connected to the pressure roller (1).

7. The temperature control method for the pressing roller of a polymer material vacuum pressing machine according to claim 1, characterized in that: Includes the following steps: S1: During operation, the heater (9) installed on the right shaft head (3) will extend into the inside of the pressing roller (1) to heat the roller body and raise the temperature of the roller body; S2: Three temperature sensing rods (5) with lengths of 100mm, 340mm and 580mm respectively are inserted from the left side of the left shaft head (2) and extend into the through holes (4) of different depths inside the pressure roller (1). They are connected to the connector (6) on the left shaft head (2) through the temperature sensing wire (7) to transmit the temperature signal to the external control system and realize multi-point real-time temperature monitoring. S3: The control system compares the real-time temperature data fed back by the temperature sensing rod (5) with the set temperature value and dynamically adjusts the power of the heater (9) to form a closed-loop temperature control process.

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