Vulcanizing furnace with stretching function for silicone tube production

Abstract

The silicone tube production vulcanizing furnace with the stretching function comprises a supporting base and an outer shell installed above the supporting base, a cooling box is installed on the right side face of the outer shell, and an inner shell is installed on the inner side wall of the outer shell through a connecting assembly; conveying carrier rollers used for assisting the silicone tube to move are installed in the cooling box and the inner shell correspondingly, two vertical rods are connected to the inner wall of the bottom face of the cooling box, two connecting rods are installed on the outer sides of the upper portions of the vertical rods, and adjusting rollers are installed on the outer sides of the upper portions of the connecting rods in a penetrating mode. According to the vulcanizing furnace with the stretching function for silicone tube production, through arrangement of an electric push rod, the reciprocating movement range of a movable plate and a first rack assembly can be adjusted and controlled, so that the rotation angle range of a vertical rod can be adjusted and controlled, and the vertical rod conveniently drives an adjusting roller and a connecting rod to adjust and control the stretching amplitude of a silicone tube; therefore, different stretching amplitude requirements can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of silicone tube production vulcanization, and specifically to a vulcanizing furnace for silicone tube production with a stretching function. Background Art

[0002] When producing silicone tubes, in order to improve their physical properties such as strength, hardness, and elasticity, a vulcanizing furnace is required to vulcanize the silicone tubes under certain high temperature and pressure, thereby improving the performance of the silicone tubes. For example, in the prior art, the patent with the publication number "CN212472130U" and the patent name "A Silicone Tube Vulcanizing Baking Tunnel Furnace" discloses loading on one side in the conveying direction. When an empty lifting fixture passes through the unloading plate on this side, the left clamping rod and the right clamping rod open. An operator aligns the left and right pipe orifices of the silicone tube with the ferrule. Subsequently, when the lifting fixture passes through the positioning plate on this side, the left clamping rod and the right clamping rod return to the vertical state, and the ferrule enters the silicone tube and limits the left and right sides of the silicone tube. The silicone tube enters the vulcanizing baking tunnel with the lifting fixture, and unloads on the output direction side. The vulcanized and shaped silicone tube is clamped and conveyed out of the vulcanizing baking tunnel by the lifting fixture, and passes through the positioning plate. When passing through the unloading plate, the left clamping rod and the right clamping rod open, and the silicone tube automatically falls and can be collected through a collection box. Also, in the prior art, the patent with the publication number "CN118977358A" and the patent name "A Vulcanizing Furnace for Silicone Tube Production" discloses that a heat-conducting coiled tube slightly heats the cooling water flowing on the left side of the water delivery channel to ensure that the water sprayed out by the two spray nozzles in the middle of the inner box has a certain temperature. When the cam rotates, in addition to causing the spray nozzles to spray cooling water, the convex part of the cam will intermittently knock on the pull rod, causing the pull rod to slide along the sliding rod towards the outside of the chute and compress the compression spring. Under the action of the elastic force of the compression spring and the intermittent knocking, the pull rod will reciprocate in the chute. When the pull rod reciprocates, it will drive the guide wheel in contact with the silicone tube and repeatedly pull the silicone tube to stretch the silicone tube. By stretching, the internal stress of the silicone tube can be reduced, and the phenomena of shrinkage and deformation of the silicone tube can be avoided, ensuring the curing and forming effect of the entire equipment main body.

[0003] Although the vulcanizing furnace in the above prior art can drive the contact guide wheel to move reciprocally through the pull rod to stretch the silicone tube in contact, since the size of the cam is fixed, the range of the reciprocal movement of the contact guide wheel is fixed. Therefore, the stretching amplitude of the contact guide wheel is fixed and cannot be adjusted according to different requirements. So, we propose a vulcanizing furnace for silicone tube production with a stretching function to solve the problems raised above. Summary of the Invention

[0004] The purpose of the present invention is to provide a vulcanizing furnace for the production of silicone tubes with a stretching function, so as to solve the problem proposed in the above background technology that although the vulcanizing furnace on the current market can drive the contact guide wheel to move reciprocally through the pull rod to stretch the silicone tube in contact, but due to the fixed size of the cam, the range of the reciprocating movement of the contact guide wheel is fixed, so the stretching amplitude of the contact guide wheel is fixed and cannot be adjusted according to different requirements.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A vulcanizing furnace for the production of silicone tubes with a stretching function, including a support base and a housing installed above it, and a cooling box is installed on the right side of the housing. The inner side wall of the housing is installed with an inner housing through a connecting component. Conveyor rollers for assisting the movement of the silicone tube are installed in both the cooling box and the inner housing. Two vertical rods are connected to the bottom inner wall of the cooling box, and two connecting rods are installed on the outer side above the vertical rods. An adjusting roller is installed through the outer side above the connecting rod. The bottom inner wall of the cooling box is connected with a moving plate, and the right side of the moving plate is connected to the output end of an electric push rod that penetrates the right side of the cooling box.

[0006] Preferably, a transmission gear is key-connected to the lower end of the vertical rod, and the connecting rod is arranged in an "L" shape.

[0007] Preferably, a first rack assembly is installed inside the moving plate, and a transmission gear is meshed and connected to the front side of the first rack assembly.

[0008] Through the setting of the above structure, when the moving plate drives the first rack assembly to move, the first rack assembly can drive the transmission gear to rotate, without the need to use an additional power source, thus saving energy.

[0009] Preferably, both the front and rear sides of the moving plate are connected to a blowing frame arranged inside the upper part of the cooling box through a support frame, and the right side of the blowing frame is connected to a pipeline penetrating the right side of the cooling box through a connecting hose.

[0010] Through the setting of the above structure, it is convenient for the moving plate to drive the blowing frame to move reciprocally left and right together, so as to facilitate the blowing frame to blow and cool the silicone tube below evenly, thereby improving the cooling efficiency and effect.

[0011] Preferably, a cooling frame is fixed inside the left side of the cooling box, a heat conduction ring made of copper is installed in the through groove inside the cooling frame, and the inside of the cooling frame is hollow. The pipelines installed on the upper and lower sides of the cooling frame are respectively connected to the upper and lower sides of the cooling box through penetration.

[0012] Through the above structure, it is convenient for the heat conduction ring to conduct the heat on the surface of the silicone tube into the cooling frame, and then it is convenient to cool down the silicone tube.

[0013] Preferably, rotating rods are installed through the front and rear side surfaces of the cooling frame. Stirring plates are installed at equal intervals on the outer sides of the rotating rods located inside the cooling frame. A regulating gear is key-connected to the outer side of the rotating rod located below the cooling frame. Two sets of second rack assemblies are symmetrically installed on the left side surface of the moving plate, and the second rack assemblies are meshed with the regulating gear.

[0014] Through the above structure, when the moving plate drives the second rack assembly to move, the second rack assembly can drive the regulating gear to rotate, without the need to use an additional power source, saving energy.

[0015] Preferably, the connecting component includes an outer sleeve tube sleeved on the outer side surface of the inner shell. The length of the outer sleeve tube is less than that of the inner shell. A row of fixing rings is sleeved on the outer side of the outer sleeve tube. The outer side surface of the fixing ring is fixedly installed in fit with the inner side wall of the outer shell. Flow channels that do not overlap are opened on the left and right side surfaces of the fixing ring.

[0016] Through the above structure, since the flow channels opened on the left and right side surfaces of the fixing ring do not overlap, the flow trajectory of the gas in the fixing ring can be extended, which is convenient for the fixing ring to conduct heat on the heat in the gas well.

[0017] Preferably, the interiors of the fixing ring and the outer sleeve tube are both hollow, and the material of the fixing ring is copper.

[0018] Through the above structure, it is convenient to inject a certain amount of hot water into the outer sleeve tube. When the gas flows through the fixing ring and moves to the left, the fixing ring made of copper material can conduct the heat in the gas to the inside of the outer sleeve tube, so as to facilitate heating or heat preservation operations on the hot water in the outer sleeve tube.

[0019] Preferably, an exhaust duct is fixedly installed through the upper right side surface of the outer shell and the inner shell, and a circle of through holes is opened at equal intervals on the outer side surface of the exhaust duct located between the gaps of the outer shell and the inner shell.

[0020] Through the above structure, it is convenient for the gas in the exhaust duct to be discharged into the gap between the outer shell and the inner shell through the through holes first, which is convenient for the gas to flow well to the left later.

[0021] Preferably, an air outlet pipe is fixedly installed through the left rear side surface of the outer shell.

[0022] Through the above structure, it is convenient to discharge the gas through the air outlet pipe later. Compared with the prior art, the beneficial effects of the present invention are as follows: The vulcanizing furnace for producing the silica gel tube with a stretching function facilitates the vertical rod to drive the adjusting roller and the connecting rod to regulate the stretching amplitude of the silica gel tube, so as to meet different stretching amplitude requirements. The specific content is as follows: Through the setting of the electric push rod, the range of the reciprocating movement of the moving plate and the first rack assembly can be regulated, so that the rotation angle range of the vertical rod can be regulated, which facilitates the vertical rod to drive the adjusting roller and the connecting rod to regulate the stretching amplitude of the silica gel tube, thus meeting different stretching amplitude requirements; By using the cooling water in the cooling frame in cooperation with the heat-conducting ring made of copper, it is convenient to conduct and recover the heat on the surface of the silica gel tube. Then, it is not only convenient to cool the silica gel tube, but also the waste heat can be recovered and reused, saving energy; At the same time, through the meshing connection of the second rack assembly and the regulating gear, the rotating rod and the stirring plate can be driven to rotate together, and then it is convenient for the stirring plate to stir the water in the cooling frame, thereby ensuring the temperature uniformity of the water at various positions in the cooling frame and facilitating the improvement of the efficiency and quality of cooling and waste heat recovery.

[0023] By using the fixed ring body and the outer sleeve body both made of copper in cooperation, the heat in the gas discharged through the exhaust duct can be conducted to the inside of the outer sleeve body, so as to heat and keep warm the temperature of the water in the outer sleeve body. Then, it is convenient for the outer sleeve body to insulate the outside of the inner shell, preventing the heat inside the inner shell from flowing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a rear view structure schematic diagram of the present invention; Figure 3 is a sectional structure schematic diagram of the outer shell of the present invention; Figure 4 is of the present invention Figure 3 the enlarged structure schematic diagram at A in; Figure 5 is a three-dimensional structure schematic diagram of the outer sleeve body of the present invention; Figure 6 is a main sectional structure schematic diagram of the cooling box of the present invention; Figure 7 is a bottom view structure schematic diagram of the blowing frame of the present invention; Figure 8 is a top view structure schematic diagram of the moving plate of the present invention; Figure 9 is a three-dimensional structure schematic diagram of the vertical rod of the present invention; Figure 10 is a partial sectional structure schematic diagram of the cooling frame of the present invention.

[0025] In the figure: 1. Outer housing; 2. Support base; 3. Cooling box; 4. Exhaust duct; 41. Through hole; 5. Air outlet duct; 6. Inner housing; 7. Outer sleeve body; 8. Fixed ring body; 81. Flow channel; 9. Cooling frame; 91. Heat conduction ring; 10. Blowing frame; 11. Moving plate; 111. Support frame; 112. First rack assembly; 12. Electric push rod; 13. Vertical rod; 131. Transmission gear; 132. Adjusting roller; 133. Connecting rod; 14. Second rack assembly; 15. Rotating rod; 151. Stirring plate; 152. Control gear; 16. Conveyor roller. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-10 , the present invention provides the following technical solutions: Embodiment 1: The vulcanizing furnace for the production of silicone tubes with stretching function in this embodiment can adjust the stretching amplitude, so as to meet different stretching requirements. The specific structure is shown in the attached Figure 1 and attached Figures 6-9 as shown, including a support base 2 and an outer housing 1 installed above it, and a cooling box 3 is installed on the right side of the outer housing 1. The inner side wall of the outer housing 1 is installed with an inner housing 6 through a connecting component. Conveyor rollers 16 for assisting the movement of the silicone tube are installed in both the cooling box 3 and the inner housing 6. Two vertical rods 13 are connected to the bottom inner wall of the cooling box 3, and two connecting rods 133 are installed on the outer side above the vertical rods 13. An adjusting roller 132 is installed through the outer side above the connecting rod 133. A moving plate 11 is connected to the bottom inner wall of the cooling box 3. The right side of the moving plate 11 is connected to the output end of an electric push rod 12 passing through the right side of the cooling box 3. A transmission gear 131 is key-connected to the lower end of the vertical rod 13. The connecting rod 133 is arranged in an "L" shape. A first rack assembly 112 is installed inside the moving plate 11. The front side of the first rack assembly 112 is meshed with the transmission gear 131. Both the front and rear sides of the moving plate 11 are connected to a blowing frame 10 arranged inside the upper part of the cooling box 3 through support frames 111. The right side of the blowing frame 10 is connected to a pipeline passing through the right side of the cooling box 3 through a connecting hose.

[0028] Insert one end of the silicone tube into the inner housing 6. At this time, the rotation of the conveying roller 16 inside the inner housing 6 drives the silicone tube to move to the conveying roller 16 inside the cooling box 3 to the right. At this time, the vulcanization mechanism and the heating mechanism inside the inner housing 6 cooperate to vulcanize the silicone tube. Since this part is prior art, no detailed introduction will be made here. The vulcanized silicone tube enters the cooling box 3. At this time, connect the connecting hose at the right end of the air blowing frame 10 to an external cold air conveying mechanism. Then, the external cold air enters the air blowing frame 10, and the cold air blows downward on the silicone tube through the air blowing holes on the bottom surface of the air blowing frame 10, thereby cooling the silicone tube. At the same time, start the electric push rod 12. The output end of the electric push rod 12 drives the moving plate 11 to move to the left. At this time, the slider on the bottom surface of the moving plate 11 slides in the chute opened on the inner wall of the bottom surface of the cooling box 3, so as to ensure the stable sliding of the moving plate 11. When the moving plate 11 slides to the left, it drives the transmission gear 131 and the vertical rod 13 to rotate through the first rack assembly 112. When the vertical rod 13 rotates, it drives the adjusting rollers 132 and the connecting rods 133 on the left and right sides to rotate by a certain angle. Then, the electric push rod 12 drives the moving plate 11 to move to the right to reset. At this time, by the same token as described above, the adjusting rollers 132 and the connecting rods 133 rotate in the reverse direction to reset. By operating in this way repeatedly, the adjusting rollers 132 can stretch the silicone tube well. At the same time, the sliding range of the moving plate 11 is controlled by the electric push rod 12, and then the rotation angle range of the adjusting rollers 132 and the connecting rods 133 can be adjusted. Therefore, the stretching amplitude of the adjusting rollers 132 can be adjusted to meet different stretching requirements. Through stretching, the silicone rubber molecular chains are oriented axially, which can well eliminate vulcanization shrinkage and ensure that the dimensional tolerance of the silicone tube is controlled within ±0.1 mm, significantly improving the longitudinal tensile strength.

[0029] When the moving plate 11 slides back and forth left and right, it will drive the air blowing frame 10 to move back and forth left and right through the support frame 111, so that the air blowing frame 10 blows cold air evenly on the silicone tube, which is convenient for improving the cooling efficiency and cooling quality of the silicone tube.

[0030] Embodiment 2: The vulcanizing furnace for producing silicone tubes with a stretching function in this embodiment, on the basis of Embodiment 1, not only facilitates the cooling of the silicone tube, but also can recycle and reuse the heat on the surface of the silicone tube, thereby saving energy. The specific structure is referred to in the appendix Figures 6-10As shown in the figure, a cooling frame 9 is fixedly installed inside the left side of the cooling box 3. A heat conduction ring 91 made of copper is installed in the through groove inside the cooling frame 9, and the inside of the cooling frame 9 is hollow. The pipes installed on the upper and lower sides of the cooling frame 9 are respectively connected through the upper and lower sides of the cooling box 3. Rotating rods 15 are installed through the front and rear sides of the cooling frame 9. Stirring plates 151 are installed at equal intervals on the outer side of the rotating rod 15 located inside the cooling frame 9. A regulating gear 152 is key-connected to the outer side of the rotating rod 15 located below the cooling frame 9. Two groups of second rack components 14 are symmetrically installed on the left side surface of the moving plate 11, and the second rack components 14 are meshed with the regulating gear 152.

[0031] The silica gel tube passes through the cooling frame 9, and a certain amount of cooling water is injected into the cooling frame 9 through the upper pipe. At this time, the heat conduction ring 91 made of copper can conduct the heat on the surface of the silica gel tube to the cooling water in the cooling frame 9, so that the temperature of the cooling water rises. At the same time, the moving plate 11 drives the second rack component 14 to slide left and right reciprocally, so that the second rack component 14 drives the regulating gear 152 and the rotating rod 15 to rotate. When the rotating rod 15 rotates, it drives the stirring plate 151 to rotate, and then the stirring plate 151 can stir the water in the cooling frame 9, so that the water temperature at each position in the cooling frame 9 is the same. Therefore, the water in the cooling frame 9 can not only cool the silica gel tube well, but also recover the waste heat well, which is convenient for the later reuse of the waste heat.

[0032] Embodiment 3: The vulcanizing furnace for producing silica gel tubes with stretching function in this embodiment, on the basis of Embodiment 1, not only facilitates the recovery of the heat of the discharged gas, but also can reuse the heat to insulate the outer side of the inner shell 6, avoiding the loss of heat inside the inner shell 6 to the outside. The specific structure is referred to in the attached Figures 6-10 As shown in the figure, the connecting component includes an outer sleeve tube body 7 sleeved on the outer side surface of the inner shell 6, and the length of the outer sleeve tube body 7 is less than the length of the inner shell 6. A row of fixing ring bodies 8 are sleeved and installed on the outer side of the outer sleeve tube body 7. The outer side surface of the fixing ring body 8 is fixedly installed in fit with the inner side wall of the outer shell 1. Through grooves 81 that do not overlap are opened on the left and right side surfaces of the fixing ring body 8. The inside of the fixing ring body 8 and the outer sleeve tube body 7 are both hollow. The material of the fixing ring body 8 is copper. An exhaust pipe 4 is fixedly installed through the upper side of the right side surfaces of the outer shell 1 and the inner shell 6, and a circle of through holes 41 are opened at equal intervals on the outer side surface of the exhaust pipe 4 located between the outer shell 1 and the inner shell 6. An air outlet pipe 5 is fixedly installed through the left rear side surface of the outer shell 1.

[0033] First, inject a certain amount of hot water into the outer sleeve body 7 through a pipeline. When the gas in the inner housing body 6 is discharged through the air extraction mechanism, at this time, the gas first enters the exhaust duct 4, and then the gas is discharged into the space between the outer housing body 1 and the inner housing body 6 through the through holes 41 on the outer side of the exhaust duct 4. Then the gas flows to the left, and then the gas first enters the rightmost fixing ring body 8 through the flow groove 81, and then is discharged from the flow groove 81 on the left side surface of the fixing ring body 8 and enters another fixing ring body 8. By repeating such operations, the gas sequentially enters a plurality of fixing ring bodies 8 with a hollow interior, enabling the fixing ring bodies 8 to come into good contact with the gas. Thus, the fixing ring bodies 8 conduct the heat in the gas to the outer sleeve body 7, and then the water in the outer sleeve body 7 can be heated or insulated well. As a result, the water in the outer sleeve body 7 can be maintained at a certain temperature, and the water in the outer sleeve body 7 can heat or insulate the outer side of the inner housing body 6, preventing the heat in the inner housing body 6 from leaking outwards. Finally, the gas is discharged through the air outlet duct 5, thus completing a series of operations.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vulcanizing furnace for producing silica gel tubes with stretching function, comprising a support base (2) and a housing (1) installed above it, and a cooling box (3) is installed on the right side of the housing (1), characterized in that: The inner side wall of the outer housing (1) is provided with an inner housing (6) through a connecting component. Conveyor rollers (16) for assisting the movement of the silica gel tube are installed in both the cooling box (3) and the inner housing (6). The bottom inner wall of the cooling box (3) is connected with two groups of vertical rods (13), and two groups of connecting rods (133) are installed on the outer side above the vertical rods (13). An adjusting roller (132) is installed through the outer side above the connecting rod (133). The bottom inner wall of the cooling box (3) is connected with a moving plate (11), and the right side surface of the moving plate (11) is connected with the output end of an electric push rod (12) penetrating through the right side surface of the cooling box (3).

2. The vulcanizing furnace for the production of a silica gel tube with a stretching function according to claim 1, characterized in that: A transmission gear (131) is key-connected to the lower end of the vertical rod (13), and the connecting rod (133) is arranged in an "L" shape.

3. The vulcanizing furnace for the production of a silicone tube with a stretching function according to claim 2, characterized in that: A first rack component (112) is installed inside the moving plate (11), and the front side surface of the first rack component (112) is meshed and connected with the transmission gear (131).

4. A vulcanizing furnace for the production of a silicone tube with a stretching function according to claim 1, characterized in that: Both the front and rear sides of the moving plate (11) are connected with a blowing frame (10) arranged inside the upper part of the cooling box (3) through a support frame (111), and the right side surface of the blowing frame (10) is connected with a pipeline penetrating through the right side surface of the cooling box (3) through a connecting hose.

5. A vulcanizing furnace for producing a silica gel tube with a stretching function according to claim 1, characterized in that: A cooling frame (9) is fixed inside the left side of the cooling box (3). A heat conduction ring (91) made of copper is installed in the through groove inside the cooling frame (9), and the inside of the cooling frame (9) is hollow. The pipelines installed on the upper and lower side surfaces of the cooling frame (9) are respectively connected with the upper and lower side surfaces of the cooling box (3) through penetration.

6. A vulcanizing furnace for the production of a silica gel tube with a stretching function according to claim 5, characterized in that: Rotating rods (15) are installed through the front and rear side surfaces inside the cooling frame (9). Stirring plates (151) are installed at equal intervals on the outer side of the rotating rod (15) located inside the cooling frame (9). A regulating gear (152) is key-connected to the outer side of the rotating rod (15) located below the cooling frame (9). Two groups of second rack components (14) are symmetrically installed on the left side surface of the moving plate (11), and the second rack components (14) are meshed and connected with the regulating gear (152).

7. A vulcanizing furnace for producing a silicone tube with a stretching function according to claim 1, characterized in that: The connecting component includes an outer sleeve tube body (7) sleeved on the outer side surface of the inner housing (6). The length of the outer sleeve tube body (7) is less than the length of the inner housing (6), and a row of fixing ring bodies (8) is sleeved and installed on the outer side of the outer sleeve tube body (7). The outer side surface of the fixing ring body (8) is fixedly installed in fit with the inner side wall of the outer housing (1). Flow channels (81) that do not overlap are opened on the left and right side surfaces of the fixing ring body (8).

8. A vulcanizing furnace for the production of a silica gel tube with a stretching function according to claim 7, characterized in that: The inside of both the fixing ring body (8) and the outer sleeve tube body (7) is hollow, and the material of the fixing ring body (8) is copper material.

9. A vulcanizing furnace for the production of silicone tubes with stretching function according to claim 1, characterized in that: An exhaust pipe (4) is fixedly installed through the upper part of the right side surface of the outer housing (1) and the inner housing (6), and a circle of through holes (41) is opened at equal intervals on the outer side surface of the exhaust pipe (4) located between the gaps of the outer housing (1) and the inner housing (6).

10. A vulcanizing furnace for producing a silica gel tube with a stretching function according to claim 9, characterized in that: An air outlet pipe (5) is fixedly installed through the left rear side surface of the outer housing (1).

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