Internal circulation efficient vulcanization tunnel furnace

Abstract

The utility model discloses an internal circulation efficient vulcanization tunnel furnace which comprises a machine frame, a furnace body is arranged at the top of the machine frame, a conveying belt is in transmission connection with the interior of the furnace body, heating pipes are arranged on the bottom wall of the furnace body, rotating discs are symmetrically arranged on the inner wall of one side of the furnace body, a transverse shaft is arranged in the center of each rotating disc, and the transverse shaft is connected with the furnace body. A plurality of material receiving bases are arranged outside the transverse shaft in a surrounding mode, and a motor for driving the two rotating discs to rotate synchronously is arranged outside the furnace body. According to the internal circulation efficient vulcanization tunnel furnace, a section of internal circulation can be conducted on a rubber product conveying path, so that the heating duration of rubber products in the furnace body is prolonged, the heating uniformity and sufficiency of the rubber products are guaranteed, and the vulcanization effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel furnaces, in particular to an internal circulation high-efficiency vulcanization tunnel furnace. Background Art

[0002] Vulcanization is also called cross-linking or aging. It is a process in which cross-linking agents such as vulcanizers and accelerators are added to rubber to transform linear macromolecules into three-dimensional network structures under certain temperature and pressure conditions. Since sulfur was first used to cross-link natural rubber, it is called vulcanization. Rubber products can be subjected to high-temperature treatment in a tunnel furnace during the vulcanization process.

[0003] Existing vulcanization tunnel furnaces heat the vulcanized rubber products at high temperatures through a continuously running conveyor belt. Therefore, the rubber products can only be heated once for a limited time in the furnace body according to the length of the conveyor belt. However, the heat in the furnace body is easily escaped from both ends and unevenly distributed. As a result, if the rubber products are conveyed in the furnace body for a short time, they will be heated unevenly and insufficiently, which affects the vulcanization effect. Utility Model Content

[0004] The utility model aims to provide an internal circulation high-efficiency vulcanization tunnel furnace to solve the problem that the current vulcanization tunnel furnace can only heat the rubber product once for a limited time according to the length of the conveyor belt, and when the rubber product is conveyed in the furnace for a short time, the heating will be uneven and insufficient, which will affect the vulcanization effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal circulation high-efficiency vulcanization tunnel furnace, comprising a frame, a furnace body is arranged on the top of the frame, a conveyor belt is connected to the internal transmission of the furnace body, a heating tube is arranged on the bottom wall of the furnace body, turntables are symmetrically arranged on the inner wall of one side of the furnace body, a horizontal axis is arranged at the center of the turntable, a plurality of material receiving seats are arranged around the outside of the horizontal axis, and a motor for driving two turntables to rotate synchronously is arranged on the outside of the furnace body.

[0006] Preferably, the material receiving seat is composed of a horizontal portion and a bent portion, and a high temperature resistant rubber pad is provided on the outer wall of the bent portion of the material receiving seat.

[0007] Preferably, a recessed groove is provided on the inner side of the horizontal portion of the material receiving seat, and a plurality of air holes are evenly provided on the bottom wall of the recessed groove.

[0008] Preferably, the edge of the turntable is provided with a circular ring fixed on the inner wall of the furnace body, and the edge of the turntable is movably connected to the inner wall of the circular ring.

[0009] Preferably, a rotating shaft extending to the outside of the furnace body is provided at the center of the back side of the turntable, and a rotating wheel is fixedly sleeved on one end of the rotating shaft at the center of the turntable located outside the furnace body, a linkage belt is connected for transmission between the rotating wheels, and the output end of the motor is fixedly connected to the outer end of the rotating shaft at the center of one of the turntables.

[0010] Preferably, two heating tubes are symmetrically arranged on the bottom wall of the furnace body, and the heating tubes are connected through a connecting tube.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the internal circulation high-efficiency vulcanization tunnel furnace can perform an internal circulation on the rubber product conveying path to extend the heating time of the rubber product in the furnace body, ensure the uniformity and sufficiency of its heating, and improve the vulcanization effect. The internal circulation high-efficiency vulcanization tunnel furnace is provided with a plurality of material receiving seats installed on the horizontal axis inside the furnace body. When the conveyor belt conveys the rubber product to be vulcanized to the inside of the furnace body, the material receiving seat can rotate under the cooperation of the motor and the turntable to transfer the rubber product conveyed on the conveyor belt to its inner side and drive it to perform circular motion, thereby achieving the effect of extending the heating time of the rubber product in the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of an internal circulation high-efficiency vulcanization tunnel furnace of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal top view structure of an internal circulation high-efficiency vulcanization tunnel furnace of the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the side structure of a furnace body of an internal circulation high-efficiency vulcanization tunnel furnace.

[0015] In the figure: 1, frame; 2, furnace body; 3, conveyor belt; 4, heating tube; 5, turntable; 6, horizontal axis; 7, material receiving seat; 71, recessed groove; 72, air vent; 8, ring; 9, motor; 10, wheel; 11, linkage belt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: an internal circulation high-efficiency vulcanization tunnel furnace, comprising a frame 1, a furnace body 2 is arranged on the top of the frame 1, the bottom of the furnace body 2 is welded and fixed to the top of the frame 1, the interior of the furnace body 2 is connected with a conveyor belt 3 through a driving mechanism, both ends of the conveyor belt 3 penetrate to the outside of the front and rear ends of the furnace body 2, and a heating pipe 4 is arranged on the bottom wall of the furnace body 2, a hot air blower is arranged outside the top of the furnace body 2, and the air supply end of the hot air blower is connected to the heating pipe 4 through a connecting pipe, a turntable 5 is symmetrically arranged on the inner wall of one side of the furnace body 2, a horizontal axis 6 is welded and fixed at the center of the turntable 5, four material receiving seats 7 are arranged around the outside of the horizontal axis 6, the inner end of the material receiving seat 7 can be welded and fixed to the outer wall of the horizontal axis 6, and the outside of the furnace body 2 is provided with a drive for driving two turntables 5 The synchronously rotating motor 9, when the furnace body 2 of this structure conveys the rubber product to be vulcanized to the inside through the conveyor belt 3, the heating tube 4 can convey hot air through the hot air blower to heat the rubber product on the conveyor belt 3 at high temperature, and when the motor 9 is driven, it can drive the two turntables 5 to rotate inside the furnace body 2. When the turntable 5 rotates, it can drive several receiving seats 7 to rotate synchronously through the horizontal axis 6. During the rotation of the receiving seat 7, the rubber product conveyed on the conveyor belt 3 can be transferred to its inner side in real time, and then the rubber product is driven to perform a circular motion and then fall back onto the conveyor belt 3, thereby performing an internal circulation of the rubber product in the conveying path of the furnace body 2, extending the heating time of the rubber product in the furnace body 2, and avoiding the existing vulcanization tunnel furnace that can only be rotated according to the conveyor belt 3 is easily heated evenly and insufficiently for a single time, thereby ensuring the effect of vulcanization. The material receiving seat 7 is composed of a horizontal portion and a bent portion, and a high-temperature resistant rubber pad is provided on the outer wall of the bent portion of the material receiving seat 7. The material receiving seat 7 of this structure can transfer the rubber product more smoothly through the bent portion at the outer end, and the high-temperature resistant rubber pad on the outer wall of the bent portion of the material receiving seat 7 can flexibly press the conveyor belt 3 to cause a certain degree of depression on the conveying surface downward, so that the rubber product can fall into the inner side of the material receiving seat 7 more smoothly. A depressed groove 71 is provided on the inner side of the horizontal portion of the material receiving seat 7, and a plurality of air holes 72 are evenly provided on the bottom wall of the depressed groove 71. The material receiving seat 7 of this structure can transfer the rubber product more stably through the depressed groove 71 The rubber product can be transferred to reduce the possibility of falling, and the air vents 72 can ensure the air permeability of the receiving seat 7, so that the rubber product can be heated more effectively and fully. The edge of the turntable 5 is provided with a ring 8 welded and fixed on the inner wall of the furnace body 2, and the edge of the turntable 5 and the inner wall of the ring 8 are movably connected. The turntable 5 of this structure can rotate more stably inside the ring 8. The center of the back side of the turntable 5 is provided with a rotating shaft that penetrates to the outside of the furnace body 2. The connection between the rotating shaft and the furnace body 2 is connected through a bearing, and the center of the turntable 5 The shaft is located outside the furnace body 2 and is fixedly sleeved with a rotating wheel 10 at one end, and the rotating wheels 10 are connected with a linkage belt 11 for transmission, and the output end of the motor 9 is fixedly connected to the outer end of the rotating shaft at the center of one of the turntables 5.The bottom of the motor 9 is fixed to the outer wall of the furnace body 2 through a support block. When the motor 9 of this structure is driven, it will drive a turntable 5 to rotate through the rotating shaft, and the rotating wheel 10 and the linkage belt 11 will also cooperate with each other to drive another turntable 5 to rotate, thereby realizing the function of synchronously driving several receiving seats 7 to rotate. Two heating tubes 4 are symmetrically arranged on the bottom wall of the furnace body 2, and the heating tubes 4 are connected by a connecting tube. The heating tubes 4 of this structure can more evenly distribute the heat generated by the hot air blower to the inside of the furnace body 2, so that the heating effect of the rubber product is more balanced.

[0018] Working principle: When using the internal circulation high-efficiency vulcanization tunnel furnace, first place the rubber product to be vulcanized on the conveying inlet end of the conveyor belt 3. When the conveyor belt 3 conveys the rubber product to the inside of the furnace body 2 through the driving mechanism, start the hot air blower on the top of the furnace body 2, and the hot air blower can convey the hot air to the two heating tubes 4. The heating tubes 4 use the hot air to heat the rubber product on the conveyor belt 3 at high temperature. At the same time, start the motor 9. When the motor 9 is driven, it will drive the linkage belt 11 with the cooperation of the two rotating wheels 10. At this time, the two turntables 5 will rotate inside the furnace body 2 after being linked. The turntable 5 rotates When rotating, it will remain stable with the cooperation of the ring 8, and when the turntable 5 rotates, it will drive several receiving seats 7 to rotate synchronously through the horizontal axis 6. During the rotation of the receiving seat 7, the rubber product transported on the conveyor belt 3 will be transferred to the recessed groove 71 on the inner side thereof in real time, and then the rubber product will be driven to perform a circular motion and then fall back onto the conveyor belt 3. During the transfer of the rubber product by the receiving seat 7, the fluidity of heat will be ensured through the air vents 72, so that the heating time of the rubber product in the furnace body 2 will be extended, and the vulcanization effect will be better, until the rubber product is transported out from the end of the conveyor belt 3, and a series of work will be completed.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An internal circulation high-efficiency vulcanization tunnel furnace, comprising a frame (1), a furnace body (2) is arranged on the top of the frame (1), a conveyor belt (3) is connected to the inside of the furnace body (2), and a heating pipe (4) is arranged on the bottom wall of the furnace body (2), characterized in that: A turntable (5) is symmetrically provided on the inner wall of one side of the furnace body (2), a horizontal axis (6) is provided at the center of the turntable (5), a plurality of material receiving seats (7) are provided around the outside of the horizontal axis (6), and a motor (9) is provided outside the furnace body (2) for driving the two turntables (5) to rotate synchronously.

2. The internal circulation high-efficiency vulcanization tunnel furnace according to claim 1, characterized in that: The material receiving seat (7) is composed of a horizontal portion and a bent portion, and a high temperature resistant rubber pad is provided on the outer wall of the bent portion of the material receiving seat (7).

3. The internal circulation high-efficiency vulcanization tunnel furnace according to claim 2 is characterized in that: A recessed groove (71) is provided on the inner side of the horizontal portion of the material receiving seat (7), and a plurality of air holes (72) are evenly provided on the bottom wall of the recessed groove (71).

4. The internal circulation high-efficiency vulcanization tunnel furnace according to claim 1, characterized in that: The edge of the turntable (5) is provided with a circular ring (8) fixed on the inner wall of the furnace body (2), and the edge of the turntable (5) and the inner wall of the circular ring (8) are movably connected.

5. The internal circulation high-efficiency vulcanization tunnel furnace according to claim 1, characterized in that: A rotating shaft penetrating to the outside of the furnace body (2) is provided at the center of the back side of each of the rotating disks (5), and a rotating wheel (10) is fixedly sleeved on one end of the rotating shaft at the center of each of the rotating disks (5) located outside the furnace body (2), a linkage belt (11) is connected between the rotating wheels (10), and the output end of the motor (9) is fixedly connected to the outer end of the rotating shaft at the center of one of the rotating disks (5).

6. The internal circulation high-efficiency vulcanization tunnel furnace according to claim 1, characterized in that: Two heating tubes (4) are symmetrically arranged on the bottom wall of the furnace body (2), and the heating tubes (4) are connected via a connecting tube.

Images