A feeding device and feeding method for filling polytetrafluoroethylene molded pipe material

Abstract

The present application discloses a feeding device and a feeding method for filling polytetrafluoroethylene molded tube material, wherein the feeding device comprises a vibration device, an outer mold, a mold core, a pressure ring, a material guiding device, and a stirring device; the outer mold and the mold core are arranged to form a cavity; the stirring device comprises a stirring shell, a rotary drive mechanism, a stirring rotary mechanism, a stirring rod mechanism, and a stirring strain gauge mechanism; in the feeding method, when powder material accumulates in the material guiding device and is squeezed onto the stirring rod mechanism, the stirring strain gauge mechanism triggers the rotary drive mechanism to drive the stirring rotary mechanism to rotate, so that the stirring rod mechanism stirs the powder material to prevent the powder material from agglomerating and clogging and promote material discharge; the vibration device further accelerates the falling of the molded powder material by vibrating the outer mold and the material guiding device; the present application realizes uniform filling and effective feeding of the powder material through a combination of vibration and automatic stirring, reduces clogging, ensures uniform distribution of the powder material in the mold cavity during the molding process, and improves product quality and production efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of feeding devices, and in particular to a feeding device and a feeding method for filling polytetrafluoroethylene molded tube material. Background Art

[0002] In the traditional polytetrafluoroethylene (PTFE) tube pressing process, the molding powder is usually manually added to the mold cavity through a small container such as a cup or a shovel. This method often causes the molding powder to spill out due to the limited space of the cavity feed port, resulting in unstable feed weight and affecting the size of the final product. In addition, the powder is prone to agglomeration and blockage at the feed port, slowing down the feeding speed. Operators usually manually shake the outer mold or use tools to poke the powder into the cavity, which will cause uneven powder distribution and air to be trapped at the bottom of the cavity, resulting in uneven material density. This not only increases labor intensity, but also causes defects such as cracks, warping and poor size in the finished product, thereby reducing production efficiency and increasing the defective product rate. Summary of the invention

[0003] In order to improve the defect that during the pressing process of polytetrafluoroethylene tube material, the molding powder is easy to agglomerate and clog at the feed port, resulting in uneven distribution of the molding powder and thus increasing the defective rate of the product, the present application provides a feeding device and a feeding method for filling polytetrafluoroethylene molded tube material.

[0004] The present application provides a feeding device and a feeding method for a polytetrafluoroethylene molded tube material, which adopts the following technical solutions:

[0005] A feeding device for filling polytetrafluoroethylene molded tube material, comprising a vibrating device, an outer mold arranged on the vibrating device, a mold core connected to the vibrating device and inserted in the outer mold, a pressure ring sleeved on the outer side wall of the mold core and located between the mold core and the outer mold, a material guide device connected to the upper end of the outer mold and sleeved on the circumference of the upper end of the mold core, and a stirring device connected to the upper end of the mold core and inserted in the material guide device; the outer mold and the mold core are surrounded to form a cavity, and the pressure ring is inserted at the bottom of the cavity;

[0006] The stirring device comprises a stirring shell inserted at the upper end of the mold core, a rotary drive mechanism inserted in the stirring shell, a stirring rotating mechanism fixedly connected to the output end of the rotary drive mechanism, a stirring rod mechanism connected to the side edge of the stirring rotating mechanism and extending and inserted into the material guiding device, and a stirring strain gauge mechanism arranged on the stirring rotating mechanism and closely aligned with the stirring rod mechanism;

[0007] The stirring strain gauge mechanism is electrically connected to the rotary drive mechanism. When the molded powder in the material guiding device squeezes the stirring rod mechanism and deforms the stirring rotating mechanism at the position of the stirring strain gauge mechanism, the stirring strain gauge mechanism triggers the rotary drive mechanism to rotate, so that the stirring rotating mechanism drives the stirring rod mechanism to rotate.

[0008] By adopting the above technical scheme, the vibration device provides vibration power for the outer mold, the mold core is inserted in the outer mold, and the outer side wall of the mold core is separated from the outer mold by a pressure ring, and the pressure ring is fixed to the bottom of the cavity; the material guiding device is located at the upper end of the outer mold, and is sleeved around the upper end of the mold core, so that the powder enters the cavity through the material guiding device to prevent the powder from spilling; the stirring device is fixed to the upper end of the mold core through the stirring shell; when the powder accumulates in the material guiding device and is squeezed onto the stirring rod mechanism, the stirring strain gauge mechanism senses the deformation of the stirring rotating mechanism, and then triggers the rotating drive mechanism to drive the stirring rotating mechanism to rotate, so that the stirring rod mechanism stirs the powder, prevents the powder from agglomerating and clogging and promotes feeding; the present application realizes uniform filling and effective feeding of powder through the combination of vibration and automatic stirring, reduces clogging, ensures uniform distribution of powder in the cavity during molding, and improves product quality and production efficiency.

[0009] Preferably, the stirring and rotating mechanism is provided with strain strip grooves located on both sides of the stirring strain gauge mechanism and arranged along the length direction of the stirring strain gauge mechanism.

[0010] By adopting the above technical solution, the strain strip grooves are located on both sides of the stirring strain gauge mechanism, thereby enhancing the sensing sensitivity of the stirring strain gauge mechanism when the powder is squeezed; the stirring rotating mechanism is tightly fitted with the stirring strain gauge mechanism through the strain strip grooves, and when the powder in the material guiding device squeezes the stirring rod mechanism, the deformation is transmitted to the stirring rotating mechanism through the strain strip grooves, and the stirring strain gauge mechanism is deformed and senses this change; the present application improves the sensing sensitivity of the stirring strain gauge mechanism through the design of the strain strip grooves, improves the accuracy of the stirring process, ensures uniform distribution of powder, avoids blockage, reduces the need for manual intervention, and thereby improves product consistency and production efficiency.

[0011] Preferably, the stirring shell includes a bottom cover inserted into the upper end of the mold core, a shell body connected to the bottom cover, a positioning support sleeve connected to the upper end of the shell body and located between the stirring and rotating mechanism and the shell body, and an arched top cover fixedly connected to the stirring and rotating mechanism, and the stirring rod mechanism extends from the side edge of the arched top cover.

[0012] By adopting the above technical scheme, the upper end of the stirring rotating mechanism is fixedly connected to the arched top cover to form a closed structure and provide additional stability; the stirring rod mechanism extends from the side edge of the arched top cover and is inserted into the material guiding device for stirring; when the powder is accumulated in the material guiding device, the stirring strain gauge mechanism senses the deformation, triggers the rotation drive mechanism to start, drives the stirring rotating mechanism to rotate, and then rotates the stirring rod mechanism to evenly stir the powder, prevent agglomeration and promote the powder to smoothly enter the bottom of the cavity; the present application realizes precise and stable stirring function through the close cooperation of the bottom cover, the shell body, the positioning support sleeve and the arched top cover, ensures uniform distribution of the powder, reduces blockage and improves production efficiency and product quality.

[0013] Preferably, a top cover sealing groove is provided on the side of the arched top cover facing the positioning support sleeve, and a support sealing groove is provided on the side of the positioning support sleeve facing the arched top cover, and the top cover sealing groove and the support sealing groove are aligned; the stirring shell also includes a top cover sealing ring inserted in the top cover sealing groove and tightly attached to the upper side of the stirring and rotating mechanism, and a support sealing ring inserted in the support sealing groove and tightly attached to the lower side of the stirring and rotating mechanism.

[0014] By adopting the above technical scheme, the top cover sealing ring is inserted in the top cover sealing groove, and the support sealing ring is inserted in the support sealing groove, thereby ensuring the sealing between the stirring shell and the stirring rotating mechanism, and between the stirring rotating mechanism and the positioning support sleeve, and preventing the molded powder from entering the stirring device during the stirring process; the top cover sealing ring and the support sealing ring are respectively tightly matched with the stirring rotating mechanism, which can also reduce the friction and vibration of the stirring rotating mechanism during the rotation process, and improve the stability and efficiency of stirring; through this sealing and vibration reduction design, the present application can further improve the density uniformity and quality of the powder, reduce the product defective rate, and reduce the maintenance cost of the equipment.

[0015] Preferably, the stirring device also includes a power supply mechanism connected to the bottom cover, a circuit control module inserted in the shell body and located above the power supply mechanism, and an electric slip ring mechanism inserted at the middle position of the stirring and rotating mechanism; the stirring strain gauge mechanism is electrically connected to the electric slip ring mechanism, the electric slip ring mechanism is electrically connected to the circuit control module, and the circuit control module is electrically connected to the rotation drive mechanism and the power supply mechanism, respectively.

[0016] By adopting the above technical solution, the electric slip ring mechanism is installed in the middle position of the stirring and rotating mechanism as the electrical connection hub of the stirring device. The stirring strain gauge mechanism is electrically connected to the electric slip ring mechanism, and the electric slip ring mechanism is connected to the circuit control module to ensure the transmission of electrical signals during the stirring and rotating process; the circuit control module is also connected to the rotation drive mechanism and the power supply mechanism respectively, and the operation of the rotation drive mechanism is regulated by the circuit control module according to the sensing signal of the stirring strain gauge mechanism; when the powder accumulates in the material guide device and squeezes the stirring rod mechanism, the stirring strain gauge mechanism senses the deformation and transmits the signal to the circuit control module through the electric slip ring mechanism. After receiving the signal, the circuit control module starts the rotation drive mechanism to drive the stirring and rotating mechanism and the stirring rod mechanism to rotate, thereby uniformly stirring the powder, preventing agglomeration and ensuring that the powder enters the cavity smoothly; through the cooperation of this electrical system, the stirring device of the present application realizes automatic control, improves the accuracy of powder filling, and improves production efficiency and product quality.

[0017] Preferably, the material guiding device includes a material guiding funnel inserted into the open end of the cavity, and a screen mechanism fixedly connected to the bottom of the material guiding funnel and sleeved on the circumference of the stirring device; the stirring rod mechanism is located above the screen mechanism, the material guiding funnel, the screen mechanism and the outer side wall of the stirring device are an integrally molded structure, the material guiding device is detachably connected to the outer mold, and the stirring device is detachably connected to the mold core.

[0018] By adopting the above technical scheme, a material guide funnel is inserted at the open end of the cavity to guide the powder into the cavity, and a screen mechanism is fixedly connected to the bottom of the material guide funnel, and the screen mechanism is sleeved on the peripheral side of the stirring device to disperse the agglomerated powder; the stirring rod mechanism is located above the screen mechanism, and stirs the powder by rotation to prevent the powder from agglomerating; the outer side walls of the material guide funnel, the screen mechanism and the stirring device are an integrated structure to ensure the overall stability and sealing of the device; the material guide device is detachably connected to the outer mold to facilitate cleaning or maintenance when necessary, and the stirring device is synchronously detachably connected to the mold core to facilitate the assembly and disassembly of the device; through the combination of the material guide device and the stirring device, the powder can be effectively introduced into the cavity, the uniform stirring of the powder by the stirring rod mechanism and the dispersing function of the screen mechanism ensure the smooth flow of the powder, reduce blockage and agglomeration, and improve the uniformity of powder distribution, thereby improving product quality and production efficiency.

[0019] Preferably, the screen mechanism is fixedly connected to the positioning support sleeve, and the stirring device also includes a pressure detection mechanism arranged between the shell body and the positioning support sleeve and used to detect the weight of the pipe material on the screen mechanism, and the pressure detection mechanism is electrically connected to the rotary drive mechanism. When the weight of the molded powder on the screen mechanism is greater than the preset value of the pipe material weight, the pressure detection mechanism triggers the rotary drive mechanism to rotate to the maximum preset value.

[0020] By adopting the above technical solution, the pressure detection mechanism is used to detect the weight of the powder on the screen mechanism in real time. When the pressure detection mechanism detects that the weight of the powder on the screen mechanism is greater than the preset value of the tube material weight, the pressure detection mechanism will trigger the rotary drive mechanism to adjust the rotation speed of the stirring rotation mechanism to the maximum preset value, thereby accelerating the rotation speed of the stirring rod mechanism, quickly stirring the powder, and preventing excessive powder from accumulating or agglomerating. The pressure detection mechanism of the present application can dynamically adjust the stirring speed to ensure that the powder can be evenly distributed before entering the cavity, preventing blockage or uneven density problems, thereby improving the feeding efficiency and product quality, and reducing the need for manual intervention, while ensuring the stability and consistency of the production process.

[0021] Preferably, an outer mold material guide slope is provided on the inner side wall of the upper open end of the outer mold, and a core material guide slope corresponding to the outer mold material guide slope is provided on the outer side wall of the upper end of the core mold. The outer mold material guide slope and the core material guide slope are arranged to form a conical feed port with a conical cross-section. The cavity and the conical feed port are connected, and the material guide device is inserted in the conical feed port and is detachably connected to the outer mold.

[0022] By adopting the above technical solution, the material guiding device is inserted into the conical feed port and connected to the outer mold in a detachable manner; this design utilizes the structure of the conical feed port to guide the powder to smoothly enter the cavity, while reducing the possibility of powder accumulation and clogging through the conical geometry, thereby ensuring smoothness during the feeding process; the detachable connection between the material guiding device and the outer mold facilitates the cleaning and maintenance operations of the device, and increases the flexibility of the device; this design not only improves the efficiency of powder introduction, but also reduces the loss of powder at the feed port, thereby ensuring the consistency and accuracy of the product, and improving production efficiency and product quality.

[0023] Preferably, the upper end of the mold core is provided with a stirring insertion groove for movably inserting the stirring device.

[0024] By adopting the above technical scheme, a stirring plug-in groove is provided at the upper end of the mold core, so that the stirring device can be conveniently connected to the mold core, ensuring good stability and accurate positioning during the stirring process; during the stirring process, through the cooperation of the stirring device and the stirring plug-in groove, the stirring rod mechanism can effectively transmit the rotational motion of the stirring rotating mechanism to the powder, ensuring that the powder is evenly stirred, avoiding agglomeration and promoting the powder to smoothly enter the cavity; the present application enhances the flexibility and convenience of the device and improves the efficiency of powder stirring.

[0025] Preferably, a feeding method for filling polytetrafluoroethylene molded tube material, comprising the feeding device for filling polytetrafluoroethylene molded tube material, further comprises the following steps:

[0026] S1: inserting the material guiding device into the mold cavity and connecting it to the upper end of the outer mold, and inserting the stirring device into the upper end of the mold core;

[0027] S2: pouring the molded powder into the material guiding device;

[0028] S3: When the molded powder in the material guiding device squeezes the stirring rod mechanism, the stirring rod mechanism drives the stirring rotating mechanism at the position of the stirring strain gauge mechanism to deform;

[0029] S4: the stirring strain gauge mechanism triggers the rotation drive mechanism to rotate, so that the stirring rotation mechanism drives the stirring rod mechanism to rotate, and the stirring rod mechanism stirs the molding powder in the material guiding device, so that the molding powder falls and enters the mold cavity;

[0030] S5: The vibration device drives the outer mold and the material guiding device to vibrate, so that the molded powder in the material guiding device falls into the mold cavity faster.

[0031] By adopting the above technical scheme, the material guiding device is first inserted into the cavity and connected with the upper end of the outer mold to ensure the stable positioning of the material guiding device, and the stirring device is simultaneously inserted into the upper end of the mold core to prepare for the subsequent stirring operation; the molded powder is poured into the material guiding device; when the molded powder in the material guiding device squeezes the stirring rod mechanism, the stirring rod mechanism drives the stirring rotating mechanism at the position of the stirring strain gauge mechanism to deform, the stirring strain gauge mechanism triggers the rotation drive mechanism to rotate, and the stirring rotating mechanism drives the stirring rod mechanism to rotate, thereby stirring the molded powder in the material guiding device, so that the molded powder falls and enters the cavity; the vibration device further accelerates the falling of the molded powder by vibrating the outer mold and the material guiding device, ensuring that the powder is quickly and evenly filled into the cavity; through this feeding method, the uniform stirring and effective filling of the powder is ensured, the production efficiency is improved, the blockage phenomenon is reduced, and the quality and consistency of the final product are guaranteed.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. A feeding device for filling polytetrafluoroethylene molded tube material, wherein a vibration device provides vibration power for an outer mold, a mold core is inserted in the outer mold, and the outer side wall of the mold core is separated from the outer mold by a pressure ring, and the pressure ring is fixed to the bottom of the cavity; a material guide device is located at the upper end of the outer mold, and is sleeved around the upper end of the mold core, so that the powder enters the cavity through the material guide device to prevent the powder from spilling out; a stirring device is fixed to the upper end of the mold core through a stirring shell; when the powder accumulates in the material guide device and is squeezed onto the stirring rod mechanism, the stirring strain gauge mechanism senses the deformation of the stirring rotating mechanism, and then triggers the rotating drive mechanism to drive the stirring rotating mechanism to rotate, so that the stirring rod mechanism stirs the powder, prevents the powder from agglomerating and clogging, and promotes material discharge; the present application realizes uniform filling and effective feeding of the powder through a combination of vibration and automatic stirring, reduces clogging, ensures uniform distribution of the powder in the cavity during molding, and improves product quality and production efficiency;

[0034] 2. A feeding device for filling polytetrafluoroethylene molded tube material, wherein the strain strip grooves are located on both sides of the stirring strain gauge mechanism, thereby enhancing the inductive sensitivity of the stirring strain gauge mechanism when the powder is squeezed; the stirring rotating mechanism is closely fitted with the stirring strain gauge mechanism through the strain strip grooves, and when the powder in the material guiding device squeezes the stirring rod mechanism, the deformation is transmitted to the stirring rotating mechanism through the strain strip grooves, and the stirring strain gauge mechanism is deformed and senses this change; the present application improves the inductive sensitivity of the stirring strain gauge mechanism through the design of the strain strip grooves, improves the accuracy of the stirring process, ensures uniform distribution of the powder, avoids clogging, reduces the need for manual intervention, and thereby improves product consistency and production efficiency;

[0035] 3. A feeding method for filling polytetrafluoroethylene molded tube material, first inserting a material guide device into the mold cavity and connecting it to the upper end of the outer mold to ensure the stable positioning of the material guide device, and synchronously inserting a stirring device into the upper end of the mold core to prepare for the subsequent stirring operation; pouring the molded powder into the material guide device; when the molded powder in the material guide device squeezes the stirring rod mechanism, the stirring rod mechanism drives the stirring rotating mechanism at the position of the stirring strain gauge mechanism to deform, the stirring strain gauge mechanism triggers the rotation drive mechanism to rotate, and the stirring rotating mechanism drives the stirring rod mechanism to rotate, thereby stirring the molded powder in the material guide device, so that the molded powder falls and enters the mold cavity; the vibration device further accelerates the falling of the molded powder by vibrating the outer mold and the material guide device, ensuring that the powder is quickly and evenly filled into the mold cavity; through this feeding method, the uniform stirring and effective filling of the powder is ensured, the production efficiency is improved, the blockage phenomenon is reduced, and the quality and consistency of the final product are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic cross-sectional view of an embodiment of a feeding device for filling polytetrafluoroethylene molded tube material of the present application. Figure 1 .

[0037] Figure 2 This is a schematic diagram of the dissection structure of a stirring device for a feeding device for a polytetrafluoroethylene molded tube filled with polytetrafluoroethylene. Figure 1 .

[0038] Figure 3 This is a schematic diagram of the dissection structure of a stirring device for a feeding device for a polytetrafluoroethylene molded tube filled with polytetrafluoroethylene. Figure 2 .

[0039] Figure 4 This is a schematic cross-sectional view of an embodiment of a feeding device for filling polytetrafluoroethylene molded tube material of the present application. Figure 2 .

[0040] Figure 5 The present invention is a schematic flow chart of the steps of a method for feeding polytetrafluoroethylene molded tube material.

[0041] Description of reference numerals:

[0042] 1. Vibration device; 2. External mold; 21. External mold material guide slope; 3. Mold core; 31. Mold core material guide slope; 32. Stirring slot; 4. Pressing ring; 5. Material guide device; 51. Material guide funnel; 52. Screen mechanism;

[0043] 6. Stirring device; 61. Stirring shell; 62. Rotary drive mechanism; 63. Stirring rotating mechanism; 64. Stirring rod mechanism; 65. Stirring strain gauge mechanism; 66. Power supply mechanism; 67. Circuit control module; 68. Electric slip ring mechanism; 69. Pressure detection mechanism; 611. Bottom cover; 612. Shell body; 613. Positioning support sleeve; 614. Arched top cover; 615. Top cover sealing ring; 616. Support sealing ring; 631. Strain strip groove; 6131. ​​Support sealing groove; 6141. Top cover sealing groove; 7. Cavity; 8. Conical feed port. DETAILED DESCRIPTION

[0044] The following is combined with Figures 1 to 5 This application is described in further detail.

[0045] The present application embodiment discloses a feeding device and a feeding method for filling a polytetrafluoroethylene molded tube. Figure 1A feeding device for filling polytetrafluoroethylene molded tube material comprises a vibrating device 1, an outer mold 2 arranged on the vibrating device 1, a core 3 connected to the vibrating device 1 and inserted in the outer mold 2, a pressure ring 4 sleeved on the outer side wall of the core 3 and located between the core 3 and the outer mold 2, a material guide device 5 connected to the upper end of the outer mold 2 and sleeved on the circumference of the upper end of the core 3, and a stirring device 6 connected to the upper end of the core 3 and inserted in the material guide device 5; the outer mold 2 and the core 3 are surrounded to form a cavity 7, and the pressure ring 4 is inserted at the bottom of the cavity 7;

[0046] The stirring device 6 comprises a stirring shell 61 inserted at the upper end of the mold core 3, a rotary drive mechanism 62 inserted in the stirring shell 61, a stirring rotating mechanism 63 fixedly connected to the output end of the rotary drive mechanism 62, a stirring rod mechanism 64 connected to the side edge of the stirring rotating mechanism 63 and extending and inserted into the material guiding device 5, and a stirring strain gauge mechanism 65 arranged on the stirring rotating mechanism 63 and closely aligned with the stirring rod mechanism 64;

[0047] The stirring strain gauge mechanism 65 is electrically connected to the rotary drive mechanism 62. When the molded powder in the material guiding device 5 squeezes the stirring rod mechanism 64 and deforms the stirring rotating mechanism 63 at the position of the stirring strain gauge mechanism 65, the stirring strain gauge mechanism 65 triggers the rotary drive mechanism 62 to rotate, so that the stirring rotating mechanism 63 drives the stirring rod mechanism 64 to rotate.

[0048] The vibration device 1 of the present application provides vibration power for the outer mold 2, the mold core 3 is inserted in the outer mold 2, and the outer side wall of the mold core 3 is separated from the outer mold 2 by a pressure ring 4, and the pressure ring 4 is fixed to the bottom of the cavity 7; the material guide device 5 is located at the upper end of the outer mold 2, and is sleeved around the upper end of the mold core 3, so that the powder enters the cavity 7 through the material guide device 5 to prevent the powder from spilling; the stirring device 6 is fixed to the upper end of the core 3 through the stirring shell 61; when the powder accumulates in the material guide device 5 and is squeezed to the stirring rod mechanism 64, the stirring strain gauge mechanism 65 senses the deformation of the stirring rotating mechanism 63, and then triggers the rotary drive mechanism 62 to drive the stirring rotating mechanism 63 to rotate, so that the stirring rod mechanism 64 stirs the powder, prevents the powder from agglomerating and clogging and promotes feeding; the present application realizes uniform filling and effective feeding of the powder through a combination of vibration and automatic stirring, reduces clogging, ensures uniform distribution of the powder in the cavity 7 during the molding process, and improves product quality and production efficiency;

[0049] The vibration device 1 is preferably a vibrator, and the rotation drive mechanism 62 is preferably a motor.

[0050] Furthermore, if Figure 2 As shown, the stirring and rotating mechanism 63 is provided with strain strip grooves 631 located on both sides of the stirring strain gauge mechanism 65 and arranged along the length direction of the stirring strain gauge mechanism 65 .

[0051] The strain strip grooves 631 provided on the stirring rotating mechanism 63 of the present application are located on both sides of the stirring strain gauge mechanism 65 and are arranged along the length direction of the stirring strain gauge mechanism 65. This design enhances the sensing sensitivity of the stirring strain gauge mechanism 65 when the powder is squeezed; the stirring rotating mechanism 63 is tightly fitted with the stirring strain gauge mechanism 65 through the strain strip grooves 631. When the powder in the material guiding device 5 squeezes the stirring rod mechanism 64, the deformation is transmitted to the stirring rotating mechanism 63 through the strain strip grooves 631, and the stirring strain gauge mechanism 65 is deformed and senses this. Changes; the stirring strain gauge mechanism 65 triggers the rotation drive mechanism 62 to start, the rotation drive mechanism 62 drives the stirring rotation mechanism 63 to rotate, the stirring rotation mechanism 63 then drives the stirring rod mechanism 64 to rotate, the stirring rod mechanism 64 is inserted in the material guide device 5, and effectively stirs the powder to prevent agglomeration, ensuring that the powder smoothly enters the bottom of the cavity 7; the present application improves the accuracy of the stirring process through the design of the strain strip groove 631, ensures that the powder is evenly distributed, avoids clogging, reduces the need for manual intervention, and thus improves the consistency and production efficiency of the product;

[0052] The stirring strain gauge mechanism 65 is preferably a strain gauge.

[0053] Furthermore, if Figure 2 As shown, the stirring shell 61 includes a bottom cover 611 inserted into the upper end of the mold core 3, a shell body 612 connected to the bottom cover 611, a positioning support sleeve 613 connected to the upper end of the shell body 612 and located between the stirring rotating mechanism 63 and the shell body 612, and an arched top cover 614 fixedly connected to the stirring rotating mechanism 63, and the stirring rod mechanism 64 extends from the side edge of the arched top cover 614.

[0054] The bottom cover 611 of the present application is inserted into the upper end of the mold core 3 and connected to the shell body 612 to provide basic support; the positioning support sleeve 613 is located between the stirring and rotating mechanism 63 and the shell body 612 to ensure that the stirring and rotating mechanism 63 can remain stable during rotation; the upper end of the stirring and rotating mechanism 63 is fixedly connected to the arched top cover 614 to form a closed structure and provide additional stability; the stirring rod mechanism 64 extends from the side edge of the arched top cover 614 and is inserted into the material guide device 5 for stirring; when the powder is accumulated in the material guide device 5, the stirring strain gauge mechanism 65 senses the deformation, triggers the rotation drive mechanism 62 to start, drives the stirring and rotating mechanism 63 to rotate, and then rotates the stirring rod mechanism 64 to evenly stir the powder, prevent agglomeration and promote the powder to smoothly enter the bottom of the cavity 7; the present application realizes a precise and stable stirring function through the close cooperation of the bottom cover 611, the shell body 612, the positioning support sleeve 613 and the arched top cover 614, ensures uniform distribution of the powder, reduces blockage and improves production efficiency and product quality.

[0055] Specifically, Figure 2 and Figure 3 As shown, a top cover sealing groove 6141 is provided on the side of the arched top cover 614 facing the positioning support sleeve 613, and a support sealing groove 6131 is provided on the side of the positioning support sleeve 613 facing the arched top cover 614, and the top cover sealing groove 6141 and the support sealing groove 6131 are aligned; the stirring shell 61 also includes a top cover sealing ring 615 inserted in the top cover sealing groove 6141 and tightly attached to the upper side of the stirring rotating mechanism 63, and a support sealing ring 616 inserted in the support sealing groove 6131 and tightly attached to the lower side of the stirring rotating mechanism 63.

[0056] The top cover sealing ring 615 of the present application is inserted into the top cover sealing groove 6141, and the support sealing ring 616 is inserted into the support sealing groove 6131, thereby ensuring the sealing between the stirring shell 61 and the stirring rotating mechanism 63, and between the stirring rotating mechanism 63 and the positioning support sleeve 613, thereby preventing the molded powder from entering the stirring device 6 during the stirring process; the top cover sealing ring 615 and the support sealing ring 616 are respectively tightly matched with the stirring rotating mechanism 63, which can also reduce the friction and vibration of the stirring rotating mechanism 63 during the rotation process, thereby improving the stability and efficiency of the stirring; through this sealing and vibration reduction design, the present application can further improve the density uniformity and quality of the powder, reduce the product defective rate, and reduce the maintenance cost of the equipment.

[0057] More specifically, if Figures 2 to 4 As shown, the stirring device 6 also includes a power supply mechanism 66 connected to the bottom cover 611, a circuit control module 67 inserted in the shell body 612 and located above the power supply mechanism 66, and an electric slip ring mechanism 68 inserted at the middle position of the stirring rotation mechanism 63; the stirring strain gauge mechanism 65 is electrically connected to the electric slip ring mechanism 68, the electric slip ring mechanism 68 is electrically connected to the circuit control module 67, and the circuit control module 67 is electrically connected to the rotation drive mechanism 62 and the power supply mechanism 66 respectively.

[0058] The power supply mechanism 66 of the present application is connected to the bottom cover 611 to provide power support for the entire device; the electric slip ring mechanism 68 is installed in the middle position of the stirring and rotating mechanism 63, serving as the electrical connection hub of the stirring device 6, the stirring strain gauge mechanism 65 is electrically connected to the electric slip ring mechanism 68, and the electric slip ring mechanism 68 is connected to the circuit control module 67 to ensure the transmission of electrical signals during the stirring and rotating process; the circuit control module 67 is also connected to the rotation drive mechanism 62 and the power supply mechanism 66 respectively, and the operation of the rotation drive mechanism 62 is controlled by the circuit control module 67 according to the induction of the stirring strain gauge mechanism 65. The signal is used for regulation; when the powder is accumulated in the material guide device 5 and squeezes the stirring rod mechanism 64, the stirring strain gauge mechanism 65 senses the deformation and transmits the signal to the circuit control module 67 through the electric slip ring mechanism 68. After receiving the signal, the circuit control module 67 starts the rotation drive mechanism 62, driving the stirring rotation mechanism 63 and the stirring rod mechanism 64 to rotate, thereby uniformly stirring the powder, preventing agglomeration and ensuring that the powder enters the cavity 7 smoothly; through the cooperation of this electrical system, the stirring device 6 realizes automatic control, improves the accuracy of powder filling, and improves production efficiency and product quality;

[0059] The power supply mechanism 66 is preferably a battery.

[0060] In addition, if Figure 4 As shown, the material guiding device 5 includes a material guiding funnel 51 inserted into the open end of the cavity 7, and a screen mechanism 52 fixedly connected to the bottom of the material guiding funnel 51 and sleeved on the side of the stirring device 6; the stirring rod mechanism 64 is located above the screen mechanism 52, and the material guiding funnel 51, the screen mechanism 52 and the outer side wall of the stirring device 6 are an integrally formed structure, the material guiding device 5 is detachably connected to the outer mold 2, and the stirring device 6 is detachably connected to the mold core 3.

[0061] The material guide funnel 51 of the present application is inserted at the open end of the cavity 7 to guide the powder into the cavity 7, and the screen mechanism 52 is fixedly connected to the bottom of the material guide funnel 51, and the screen mechanism 52 is sleeved on the peripheral side of the stirring device 6 to disperse the agglomerated powder; the stirring rod mechanism 64 is located above the screen mechanism 52, and the powder is stirred by rotation to prevent the powder from agglomerating; the outer side wall of the material guide funnel 51, the screen mechanism 52 and the stirring device 6 is an integrated structure to ensure the overall stability and sealing of the device; the material guide device 5 is detachably connected to the outer mold 2, which is convenient for cleaning or maintenance when necessary, and the stirring device 6 is synchronously detachably connected to the core 3 to facilitate the assembly and disassembly operation of the device; through the combination of the material guide device 5 and the stirring device 6, the powder can be effectively introduced into the cavity 7, the stirring rod mechanism 64 uniformly stirs the powder and the dispersing function of the screen mechanism 52 ensures the smooth flow of the powder, reduces blockage and agglomeration, and improves the uniformity of powder distribution, thereby improving product quality and production efficiency.

[0062] And, if Figure 2 and Figure 4 As shown, the screen mechanism 52 is fixedly connected to the positioning support sleeve 613, and the stirring device 6 also includes a pressure detection mechanism 69 arranged between the shell body 612 and the positioning support sleeve 613 and used to detect the weight of the pipe material on the screen mechanism 52. The pressure detection mechanism 69 is electrically connected to the rotation drive mechanism 62. When the weight of the molded powder on the screen mechanism 52 is greater than the preset value of the pipe material weight, the pressure detection mechanism 69 triggers the rotation drive mechanism 62 to rotate to the maximum preset value.

[0063] The pressure detection mechanism 69 of the present application is used to detect the weight of the powder on the screen mechanism 52 in real time. When the pressure detection mechanism 69 detects that the weight of the powder on the screen mechanism 52 is greater than the preset value of the tube material weight, the pressure detection mechanism 69 will trigger the rotation drive mechanism 62 to adjust the rotation speed of the stirring rotation mechanism 63 to the preset maximum rotation speed, thereby accelerating the rotation speed of the stirring rod mechanism 64, quickly stirring the powder, and preventing excessive powder from accumulating or agglomerating; the pressure detection mechanism 69 of the present application can dynamically adjust the stirring speed to ensure that the powder can be evenly distributed before entering the cavity 7, preventing blockage or uneven density problems, thereby improving the feeding efficiency and product quality, and reducing the need for manual intervention, while ensuring the stability and consistency of the production process;

[0064] The pressure detection mechanism 69 is preferably a pressure sensor.

[0065] Furthermore, if Figure 4 As shown, an outer mold material guide slope 21 is provided on the inner side wall of the open end of the outer mold 2, and a core material guide slope 31 corresponding to the outer mold material guide slope 21 is provided on the outer side wall of the upper end of the core 3. The outer mold material guide slope 21 and the core material guide slope 31 are arranged to form a conical feed port 8 with a conical cross-section. The cavity 7 is connected to the conical feed port 8, and the guide device 5 is inserted in the conical feed port 8 and is detachably connected to the outer mold 2.

[0066] The material guiding device 5 of the present application is inserted into the conical feed port 8 and is connected to the outer mold 2 in a detachable manner; this design utilizes the structure of the conical feed port 8 to guide the powder to smoothly enter the cavity 7, while reducing the possibility of powder accumulation and clogging through the conical geometry, thereby ensuring smoothness during the feeding process; the detachable connection between the material guiding device 5 and the outer mold 2 facilitates the cleaning and maintenance operations of the device, and increases the flexibility of use of the device; this design not only improves the efficiency of powder introduction, but also reduces the loss of powder at the feed port, thereby ensuring the consistency and accuracy of the product, and improving production efficiency and product quality.

[0067] Furthermore, if Figure 4 As shown, the upper end of the mold core 3 is provided with a stirring insertion groove 32 for movably inserting the stirring device 6.

[0068] The upper end of the mold core 3 of the present application is provided with a stirring plug groove 32, so that the stirring device 6 can be easily connected to the mold core 3, ensuring good stability and accurate positioning during the stirring process; during the stirring process, through the cooperation of the stirring device 6 and the stirring plug groove 32, the stirring rod mechanism 64 can effectively transmit the rotational motion of the stirring rotating mechanism 63 to the powder, ensuring that the powder is evenly stirred, avoiding agglomeration and promoting the powder to smoothly enter the cavity 7; the present application enhances the flexibility and convenience of the device and improves the efficiency of powder stirring.

[0069] Specifically, Figure 5 As shown, a feeding method for filling polytetrafluoroethylene molded tube material includes a feeding device for filling polytetrafluoroethylene molded tube material, and further includes the following steps:

[0070] S1: insert the material guiding device 5 into the cavity 7 and connect it to the upper end of the outer mold 2, and insert the stirring device 6 into the upper end of the mold core 3;

[0071] S2: pouring the molded powder into the material guiding device 5;

[0072] S3: When the molded powder in the material guiding device 5 squeezes the stirring rod mechanism 64, the stirring rod mechanism 64 drives the stirring rotating mechanism 63 at the position of the stirring strain gauge mechanism 65 to deform;

[0073] S4: the stirring strain gauge mechanism 65 triggers the rotation drive mechanism 62 to rotate, so that the stirring rotation mechanism 63 drives the stirring rod mechanism 64 to rotate, and the stirring rod mechanism 64 stirs the molded powder in the material guiding device 5, so that the molded powder falls and enters the mold cavity 7;

[0074] S5: The vibration device 1 drives the outer mold 2 and the material guiding device 5 to vibrate, so that the molded powder in the material guiding device 5 falls into the mold cavity 7 faster.

[0075] The present application first inserts the material guiding device 5 into the cavity 7 and connects it with the upper end of the outer mold 2 to ensure the stable positioning of the material guiding device 5, and simultaneously inserts the stirring device 6 into the upper end of the mold core 3 to prepare for the subsequent stirring operation; the molded powder is poured into the material guiding device 5; when the molded powder in the material guiding device 5 squeezes the stirring rod mechanism 64, the stirring rod mechanism 64 drives the stirring rotating mechanism 63 at the position of the stirring strain gauge mechanism 65 to deform, and the stirring strain gauge mechanism 65 triggers the rotation drive mechanism 62 to rotate, and the stirring rotating mechanism 63 drives the stirring rod mechanism 64 to rotate, thereby stirring the molded powder in the material guiding device 5, so that the molded powder falls and enters the cavity 7; the vibration device 1 further accelerates the falling of the molded powder by vibrating the outer mold 2 and the material guiding device 5, ensuring that the powder is quickly and evenly filled into the cavity 7; through this feeding method, the uniform stirring and effective filling of the powder are ensured, the production efficiency is improved, the blockage phenomenon is reduced, and the quality and consistency of the final product are guaranteed.

[0076] The implementation principle of a feeding device and a feeding method for filling polytetrafluoroethylene molded tube material in the embodiment of the present application is as follows:

[0077] A feeding device for filling polytetrafluoroethylene molded tube material, wherein a vibration device 1 provides vibration power for an outer mold 2, a mold core 3 is inserted in the outer mold 2, and the outer side wall of the mold core 3 is separated from the outer mold 2 by a pressure ring 4, and the pressure ring 4 is fixed to the bottom of a cavity 7; a material guide device 5 is located at the upper end of the outer mold 2 and is sleeved around the upper end of the mold core 3, so that the powder enters the cavity 7 through the material guide device 5 to prevent the powder from spilling out; a stirring device 6 is fixed to the upper end of the mold core 3 through a stirring shell 61; when the powder is accumulated on the material guide device When the stirring rod mechanism 64 is squeezed into the housing 5, the stirring strain gauge mechanism 65 senses the deformation of the stirring rotating mechanism 63, thereby triggering the rotary drive mechanism 62 to drive the stirring rotating mechanism 63 to rotate, so that the stirring rod mechanism 64 stirs the powder to prevent the powder from agglomerating and clogging and promote feeding; the present application realizes uniform filling and effective feeding of the powder through the combination of vibration and automatic stirring, reduces the clogging phenomenon, ensures the uniform distribution of the powder in the mold cavity 7 during the molding process, and improves the product quality and production efficiency;

[0078] The strain strip grooves 631 provided on the stirring rotating mechanism 63 are located on both sides of the stirring strain gauge mechanism 65 and are arranged along the length direction of the stirring strain gauge mechanism 65. This design enhances the inductive sensitivity of the stirring strain gauge mechanism 65 when the powder is squeezed; the stirring rotating mechanism 63 is closely fitted with the stirring strain gauge mechanism 65 through the strain strip grooves 631. When the powder in the material guiding device 5 squeezes the stirring rod mechanism 64, the deformation is transmitted to the stirring rotating mechanism 63 through the strain strip grooves 631, and the stirring strain gauge mechanism 65 is deformed and senses this change. ; The stirring strain gauge mechanism 65 triggers the rotation drive mechanism 62 to start, the rotation drive mechanism 62 drives the stirring rotation mechanism 63 to rotate, the stirring rotation mechanism 63 then drives the stirring rod mechanism 64 to rotate, the stirring rod mechanism 64 is inserted in the material guide device 5, and effectively stirs the powder to prevent agglomeration, ensuring that the powder smoothly enters the bottom of the cavity 7; the present application improves the accuracy of the stirring process through the design of the strain strip groove 631, ensures that the powder is evenly distributed, avoids clogging, reduces the need for manual intervention, and thus improves the consistency and production efficiency of the product;

[0079] A feeding method for filling polytetrafluoroethylene molded tube material, first inserting a material guide device 5 into a mold cavity 7 and connecting it with the upper end of an outer mold 2 to ensure that the material guide device 5 is firmly positioned, and synchronously inserting a stirring device 6 into the upper end of a mold core 3 to prepare for subsequent stirring operations; pouring molded powder into the material guide device 5; when the molded powder in the material guide device 5 squeezes a stirring rod mechanism 64, the stirring rod mechanism 64 drives a stirring rotating mechanism 63 at the position of a stirring strain gauge mechanism 65 to deform, the stirring strain gauge mechanism 65 triggers a rotating drive mechanism 62 to rotate, and the stirring rotating mechanism 63 drives the stirring rod mechanism 64 to rotate, thereby stirring the molded powder in the material guide device 5, so that the molded powder falls and enters the mold cavity 7; the vibration device 1 further accelerates the falling of the molded powder by vibrating the outer mold 2 and the material guide device 5, ensuring that the powder is quickly and evenly filled into the mold cavity 7; through this feeding method, even stirring and effective filling of the powder are ensured, production efficiency is improved, clogging is reduced, and the quality and consistency of the final product are guaranteed.

[0080] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A feeding device for filling polytetrafluoroethylene molded tube material, characterized in that: The invention comprises a vibration device (1), an outer mold (2) arranged on the vibration device (1), a mold core (3) connected to the vibration device (1) and inserted into the outer mold (2), a pressure ring (4) sleeved on the outer side wall of the mold core (3) and located between the mold core (3) and the outer mold (2), a material guide device (5) connected to the upper end of the outer mold (2) and sleeved on the circumference of the upper end of the mold core (3), and a stirring device (6) connected to the upper end of the mold core (3) and inserted into the material guide device (5); the outer mold (2) and the mold core (3) are arranged to form a cavity (7), and the pressure ring (4) is inserted into the bottom of the cavity (7); The stirring device (6) comprises a stirring shell (61) inserted into the upper end of the mold core (3), a rotary drive mechanism (62) inserted into the stirring shell (61), a stirring rotating mechanism (63) fixedly connected to the output end of the rotary drive mechanism (62), a stirring rod mechanism (64) connected to the side edge of the stirring rotating mechanism (63) and extending and inserted into the material guiding device (5), and a stirring strain gauge mechanism (65) arranged on the stirring rotating mechanism (63) and closely aligned with the stirring rod mechanism (64); The stirring strain gauge mechanism (65) is electrically connected to the rotary drive mechanism (62). When the molded powder in the material guiding device (5) squeezes the stirring rod mechanism (64) and causes the stirring rotary mechanism (63) at the position of the stirring strain gauge mechanism (65) to deform, the stirring strain gauge mechanism (65) triggers the rotary drive mechanism (62) to rotate, so that the stirring rotary mechanism (63) drives the stirring rod mechanism (64) to rotate; The stirring rotating mechanism (63) is provided with strain strip grooves (631) located on both sides of the stirring strain gauge mechanism (65) and arranged along the length direction of the stirring strain gauge mechanism (65); the stirring shell (61) comprises a bottom cover (611) inserted into the upper end of the mold core (3), a shell body (612) connected to the bottom cover (611), a positioning support sleeve (613) connected to the upper end of the shell body (612) and located between the stirring rotating mechanism (63) and the shell body (612), and an arched top cover (614) fixedly connected to the stirring rotating mechanism (63), and the stirring rod mechanism (64) extends from the side edge of the arched top cover (614); The material guiding device (5) comprises a material guiding funnel (51) inserted into the open end of the cavity (7), and a screen mechanism (52) fixedly connected to the bottom of the material guiding funnel (51) and sleeved on the side of the stirring device (6); the stirring rod mechanism (64) is located above the screen mechanism (52); the material guiding funnel (51), the screen mechanism (52) and the outer side wall of the stirring device (6) are an integrally formed structure; the material guiding device (5) is detachably connected to the outer mold (2), and the stirring device (6) is detachably connected to the mold core (3); the screen mechanism (52) is fixedly connected to the bottom of the material guiding funnel (51) and sleeved on the side of the stirring device (6); the stirring rod mechanism (64) is located above the screen mechanism (52); the material guiding funnel (51), the screen mechanism (52) and the outer side wall of the stirring device (6) are an integrally formed structure; the material guiding device (5) is detachably connected to the outer mold (2), and the stirring device (6) is detachably connected to the mold core (3); The mesh mechanism (52) is fixedly connected to the positioning support sleeve (613); the stirring device (6) further comprises a pressure detection mechanism (69) disposed between the shell body (612) and the positioning support sleeve (613) and used to detect the weight of the pipe material on the mesh mechanism (52); the pressure detection mechanism (69) is electrically connected to the rotary drive mechanism (62); when the weight of the molded powder on the mesh mechanism (52) is greater than a preset value of the pipe material weight, the pressure detection mechanism (69) triggers the rotary drive mechanism (62) to rotate to a preset maximum speed value; An outer mold material guide slope (21) is provided on the inner side wall of the upper open end of the outer mold (2), and a core material guide slope (31) is provided on the outer side wall of the upper end of the core mold (3) and is arranged corresponding to the outer mold material guide slope (21). The outer mold material guide slope (21) and the core material guide slope (31) are arranged to form a conical feed port (8) with a conical cross-section. The cavity (7) is connected to the conical feed port (8), and the material guide device (5) is inserted into the conical feed port (8) and is detachably connected to the outer mold (2).

2. A feeding device for filling polytetrafluoroethylene molded tube material according to claim 1, characterized in that: A top cover sealing groove (6141) is provided on the side of the arched top cover (614) facing the positioning support sleeve (613), and a support sealing groove (6131) is provided on the side of the positioning support sleeve (613) facing the arched top cover (614), and the top cover sealing groove (6141) and the support sealing groove (6131) are arranged in alignment; the stirring shell (61) also includes a top cover sealing ring (615) inserted in the top cover sealing groove (6141) and tightly attached to the upper side of the stirring and rotating mechanism (63), and a support sealing ring (616) inserted in the support sealing groove (6131) and tightly attached to the lower side of the stirring and rotating mechanism (63).

3. A feeding device for filling polytetrafluoroethylene molded tube material according to claim 1, characterized in that: The stirring device (6) further comprises a power supply mechanism (66) connected to the bottom cover (611), a circuit control module (67) inserted into the shell body (612) and located above the power supply mechanism (66), and an electric slip ring mechanism (68) inserted at the middle position of the stirring rotating mechanism (63); the stirring strain gauge mechanism (65) is electrically connected to the electric slip ring mechanism (68), the electric slip ring mechanism (68) is electrically connected to the circuit control module (67), and the circuit control module (67) is electrically connected to the rotation drive mechanism (62) and the power supply mechanism (66), respectively.

4. A feeding device for filling polytetrafluoroethylene molded tube material according to claim 1, characterized in that: The upper end of the mold core (3) is provided with a stirring insertion groove (32) for movably inserting the stirring device (6).

5. A method for feeding polytetrafluoroethylene molded tube material, characterized in that: The feeding device for a polytetrafluoroethylene molded tube material filled with polytetrafluoroethylene according to any one of claims 1 to 4 further comprises the following steps: S1: inserting the material guiding device (5) into the mold cavity (7) and connecting it to the upper end of the outer mold (2), and inserting the stirring device (6) into the upper end of the mold core (3); S2: pouring the molded powder into the material guiding device (5); S3: When the molded powder in the material guiding device (5) squeezes the stirring rod mechanism (64), the stirring rod mechanism (64) drives the stirring rotating mechanism (63) at the position of the stirring strain gauge mechanism (65) to deform; S4: the stirring strain gauge mechanism (65) triggers the rotation drive mechanism (62) to rotate, so that the stirring rotation mechanism (63) drives the stirring rod mechanism (64) to rotate, and the stirring rod mechanism (64) stirs the molding powder in the material guiding device (5), so that the molding powder falls and enters the mold cavity (7); S5: The vibration device (1) drives the outer mold (2) and the material guiding device (5) to vibrate, so that the molded powder in the material guiding device (5) falls into the mold cavity (7) faster.

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