TPV multi-composite externally-hung head

Abstract

The application relates to the technical field of sealing strip production equipment, and discloses a TPV multi-composite externally-hung type machine head, which comprises a main body, at least two discharge ports are arranged at the front part of the main body, the side part of the main body is provided with the same number of feeding ports as the discharge ports, the feeding ports and the discharge ports are in one-to-one correspondence, the discharge ports are respectively communicated with the corresponding feeding ports, the feeding ports are detachably connected with second joints, an electric heating rod is arranged in the main body, and a temperature sensor is arranged beside the electric heating rod. The main body is connected with a mold, and each discharge port on the main body is communicated with a corresponding feeding port on the mold. Therefore, before production, the main body is only connected with the mold, the connection between the extruders and the mold can be realized, the connection efficiency of the mold and the extruders can be greatly improved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sealing strip production equipment, and in particular to a TPV multi-composite externally-hung die head. BACKGROUND

[0002] TPV (thermoplastic vulcanizate) has both the resilience of traditional elastomers and the easy processability of thermoplastic plastics, and is often used in positions such as automobile glass sealing strips and door sealing strips, and has the functions of waterproofing, leakage prevention, sound insulation and noise reduction. For example, the use of TPV material for front windshield rubber strips can improve the tightness of the car window closure and prevent rainwater from seeping in.

[0003] Such automobile sealing strips are usually integrally formed by several different kinds or different grades of materials in the same mold, and the mold is provided with a plurality of material inlets for being connected with the several different extruders. Each extruder provides one kind of material, which enters the mold through the material inlet, and then forms the sealing strip.

[0004] Since the mold is directly connected with the joints of the pipelines of the extruders, the mold and the extruders need to be connected or disconnected each time before and after production, and the pipeline joints of the extruders need to be connected or disconnected one by one, which is not only time-consuming and laborious, but also easy to cause damage to the connection parts of the mold or material leakage at the connection parts. The mold has a high manufacturing cost, and the maintenance cost is also high, which increases the use cost of the mold. SUMMARY

[0005] The purpose of the application is to provide a TPV multi-composite externally-hung die head for realizing the quick connection or disconnection of the mold and the pipeline of the extruder, so as to improve the production efficiency.

[0006] To solve the above technical problems, the technical scheme adopted by the application is as follows:

[0007] A TPV multi-composite externally-hung die head comprises a main body, at least two material outlets are arranged on the front part of the main body, the same number of material inlets as the number of the material outlets are arranged on the side part of the main body, the material inlets and the material outlets correspond to each other one by one, the material outlets are respectively communicated with the corresponding material inlets, a second joint is detachably connected on the material inlets, an electric heating rod is inserted into the main body, and a temperature sensor is arranged beside the electric heating rod.

[0008] Further, a first joint is connected on the material inlet of the main body, a movable nut is movably connected to one end of the first joint, the other end of the movable nut is threadedly connected with the second joint, a temperature sensor is inserted into the second joint, a heat preservation sleeve is sleeved on the second joint, and the second joint and the movable nut are located in the heat preservation sleeve.

[0009] Furthermore, the end of the first connector away from the feed inlet is a spherical connecting part. The outer diameter of the connecting part is larger than the inner diameter of the movable nut near the end of the first connector. The connecting part is located inside the movable nut and is sandwiched between the movable nut and the second connector. The mating surfaces of the movable nut and the connecting part, as well as the mating surfaces of the second connector and the connecting part, are spherical surfaces corresponding to the connecting part.

[0010] Furthermore, there are four discharge ports evenly distributed along the circumference, and four inlets corresponding one-to-one with the four discharge ports. The four inlets are all located on the side of the main body. The second connectors are four detachably connected to the four inlets. The main body has four flow channels, which correspond one-to-one with the four inlets. Each inlet and its corresponding discharge port are connected through the corresponding flow channel.

[0011] Furthermore, four discharge ports are arranged in a cross shape at the front of the main body, with two inlets located on the left and right sides of the main body respectively, and the other two inlets located at the rear of the main body. The center lines of the inlets, the corresponding discharge ports, and the corresponding flow channels are located on the same horizontal plane.

[0012] Furthermore, the front part of the main body is detachably connected to a connecting plate at the discharge port, and the connecting plate is provided with a guide hole communicating with the discharge port.

[0013] Furthermore, a support block is connected to the front of the main body, and the support block is lower than the discharge port.

[0014] Furthermore, a base plate is provided below the main body, and a lifting device for moving the main body up and down is provided between the base plate and the main body.

[0015] Furthermore, the lifting device includes a vertical support leg fixedly connected to the base plate and a sliding column slidably connected to the top of the support leg. The top of the sliding column is fixedly connected to the main body. A worm gear screw jack is provided between the support leg and the main body. The housing of the worm gear screw jack is fixedly connected to the support leg. The screw of the worm gear screw jack is vertical, and the top of the screw is fixedly connected to the main body.

[0016] The positive effects of this invention are:

[0017] Each second connector connects to its corresponding extruder, and the main body is connected to the die. Each discharge port on the main body connects to its corresponding feed port on the die. Therefore, before production, only the main body needs to be connected to the die to connect each extruder to the die, greatly improving the connection efficiency between the die and the extruder, and thus increasing production efficiency. The main body is equipped with electric heating rods and temperature sensors. Under the combined action of the electric heating rods and temperature sensors, the main body can be maintained at a constant temperature, ensuring that the temperature of the raw material entering the die through the main body meets the production process requirements. Since the electric heating rods are inserted inside the main body, all the heat generated by the electric heating rods can be transferred to the main body. Because the electric heating rods heat the main body from the inside out, and the flow channel is located inside the main body, the raw material exiting the extruder is heated in time as it passes through the flow channel, thus improving the heating efficiency and speed of the electric heating rods on the main body and reducing energy consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the invention viewed from the front of the main body;

[0019] Figure 2 This is a schematic diagram of the invention viewed from the rear of the main body;

[0020] Figure 3 yes Figure 1 Top view;

[0021] Figure 4 This is an exploded view of the upper part of the present invention;

[0022] Figure 5 It is a sectional view of the main body, the first joint, and the second joint after they are connected.

[0023] Figure 6 It is a three-dimensional image of the main body;

[0024] Figure 7 yes Figure 6 The D-direction view;

[0025] Figure 8 yes Figure 7 A cross-sectional view of the AA section;

[0026] Figure 9 yes Figure 7 A sectional view of the BB section;

[0027] Figure 10 yes Figure 7 A sectional view of the CC section;

[0028] In the picture:

[0029] 1. Foot; 2. Base plate; 3. Support leg; 4. Lifting device; 5. Support block; 6. Connecting plate; 7. Cover plate; 8. Lifting ring; 9. Electric heating rod; 10. Main body; 11. Temperature sensor; 12. First connector; 13. Insulation sleeve; 14. Second connector; 15. Movable nut; 16. Flow channel; 17. Feed inlet; 18. Discharge outlet; 19. Guide hole; 20. Sliding column; 21. Recess; 22. Connecting part. Detailed Implementation

[0030] Example 1

[0031] like Figures 1 to 10 As shown, a TPV multi-composite external head includes a main body 10, with four discharge ports 18 at the front. The side of the main body 10 has six faces, and the raw material is in the shape of a cube. The two right-angled parts at the rear of the cube raw material are chamfered to form the six faces of the side of the main body 10.

[0032] The four discharge ports 18 are elongated strips with rounded ends. They are distributed circumferentially at the front of the main body 10, with the centers of opposite discharge ports 18 forming a cross shape. The main body 10 has four inlets 17 on its sides, located on the left and right sides and the two adjacent sides at the rear. Each inlet 17 corresponds to one discharge port 18. The main body 10 contains four flow channels 16, each corresponding to one inlet 17. Each inlet 17 is connected to its corresponding discharge port 18 via a flow channel 16.

[0033] Each feed port 17 is detachably connected to a second connector 14. The upper part of the main body 10 has an electric heating rod 9 inserted inside it. A temperature sensor 11 is also located next to the electric heating rod 9 on the main body 10. Two recesses 21 are symmetrically arranged on the top of the main body 10. The electric heating rods 9 are located at the bottom of the recesses 21. Each recess 21 contains four electric heating rods 9. Two temperature sensors 11 are symmetrically arranged on the left and right sides. A cover plate 7 is symmetrically arranged on the top of the main body 10. Three lifting rings 8 are screwed onto the top of the main body 10. Holes are opened on the cover plates 7 at positions corresponding to the leads of the lifting rings 8, temperature sensors 11, and electric heating rods 9.

[0034] Four second connectors 14 are connected to four extruders respectively, the front of the main body 10 is connected to the die, and the four discharge ports 18 are connected to the four feed ports on the die respectively. Therefore, before production begins, only the main body 10 needs to be connected to the die to connect the four extruders to the die, which can greatly improve the connection efficiency between the die and the extruder and improve production efficiency.

[0035] During production, the raw materials from the four extruders enter the main body 10 through four second connectors 14, and then enter the mold through the flow channel 16 and the discharge port 18. The electric heating rod 9 and temperature sensor 11 are connected to an electronic controller, which controls the electric heating rod 9 to heat the main body 10. The temperature sensor 11 feeds back the temperature of the main body 10 to the electronic controller, controlling the heating duration or heating power of the electric heating rod 9. Therefore, under the combined action of the electric heating rod 9 and the temperature sensor 11, the main body 10 can be maintained at a constant temperature, ensuring that the temperature of the raw materials entering the mold through the main body 10 meets the production process requirements. Since the electric heating rod 9 is inserted inside the main body 10, all the heat generated by the electric heating rod 9 can be transferred to the main body 10. The heating method of the main body 10 is from the inside out, and the flow channel 16 is located inside the main body 10, so that the raw materials from the extruders are heated as they pass through the flow channel 16, thereby improving the heating efficiency and heating speed of the main body 10 by the electric heating rod 9 and reducing energy consumption.

[0036] The centerline of each feed inlet 17, the centerline of the corresponding discharge outlet 18, and the centerline of the corresponding flow channel 16 are located on the same horizontal plane, so that the raw material flows horizontally through the flow channel 16, the air in the flow channel 16 can be discharged smoothly, the raw material can be filled in the flow channel 16, so that the raw material is in full contact with the main body 10, and the raw material passing through the flow channel 16 is fully heated.

[0037] The main body 10 is connected to the feed inlet 17 by a first connector 12 via a thread. The first connector 12 is provided with a movable nut 15 whose inner end is movably connected to it. The outer end of the movable nut 15 is threadedly connected to the second connector 14.

[0038] The outer end of the first connector 12 (i.e., the end furthest from the feed inlet 17 on the main body 10) is a spherical connecting part 22. The outer diameter of the connecting part 22 is larger than the inner diameter of the inner end of the movable nut 15 (i.e., the end closest to the first connector 12), and the connecting part 22 is located inside the movable nut 15. After tightening the movable nut 15, the connecting part 22 is clamped between the movable nut 15 and the second connector 14. The mating surfaces of the movable nut 15 and the connecting part 22, as well as the mating surfaces of the second connector 14 and the connecting part 22, are all spherical surfaces corresponding to the connecting part 22. Since the contact surfaces of the second connector 14 and the first connector 12 are spherical surfaces, and the contact surfaces of the movable nut 15 and the first connector 12 are also spherical surfaces, even if there is a small angular error when the first connector 12 and the second connector 14 are connected (even if there is a slight angle between the axis of the first connector 12 and the axis of the second connector 14), reliable connection and sealing of the first connector 12 and the second connector 14 can be guaranteed.

[0039] Normally, the first connector 12 is connected to the feed inlet 17 of the main body 10, and the second connector 14 is connected to the pipeline of the extruder. The second connector 14 can be quickly connected to and disconnected from the first connector 12 by means of the movable nut 15. The outer walls of the movable nut 15, the first connector 12, and the second connector 14 are all provided with hexagonal mating parts for cooperating with a wrench.

[0040] Each second connector 14 is also equipped with a temperature sensor 11. The second connector 14 is covered by an insulation sleeve 13. The side wall of the insulation sleeve 13 has holes for the temperature sensor 11 to pass through. Both the second connector 14 and the movable nut 15 are located inside the insulation sleeve 13. The insulation sleeve 13 serves to insulate, reducing heat loss between the first connector 12 and the second connector 14. The temperature sensor 11 monitors the temperature of the raw material before it enters the main body 10 and feeds it back to the controller to control the heating time or power of the electric heating rod 9, thereby maintaining the temperature of the raw material entering the mold within the temperature range required by the production process. An axial gap is provided on the side wall at the bottom of the insulation sleeve 13 for easy assembly and disassembly.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that:

[0043] A circular connecting plate 6 is detachably connected to the front of the main body 10 at the discharge port 18 via screws. The connecting plate 6 has four guide holes 19, each corresponding to and communicating with one of the four discharge ports 18. During production, the connecting plate 6 is connected to the mold via bolts, allowing the four guide holes 19 to communicate with the four inlets of the mold. Therefore, each time the mold is used, it only needs to be connected to the connecting plate 6 via its flange, without directly connecting it to the main body 10. After a period of use, the threads in the connecting holes of the connecting plate 6 may wear due to repeated disassembly and assembly. Only the connecting plate 6 needs to be replaced (the connecting plate 6 can be kept as a spare consumable part), eliminating the need for maintenance of the main body 10, thus reducing the operating cost of this invention.

[0044] A support block 5 is connected to the front of the main body 10. The support block 5 is lower than the discharge port 18. The top surface of the support block 5 is an arc shape corresponding to the flange shape of the mold. The bottom of the connecting plate 6 is sandwiched between the support block 5 and the main body 10. By placing the flange of the mold on the support block 5 and rotating the mold, the bolt holes on the flange can be aligned with the connecting holes on the connecting plate 6, thus facilitating the connection between the mold and the connecting plate 6.

[0045] Example 3

[0046] like Figure 1 and Figure 2 As shown, the difference between this embodiment and Embodiment 2 is that:

[0047] A rectangular base plate 2 is provided below the main body 10. Base feet 1 are provided near the four corners of the base plate 2. A screw rod at the top of each base foot 1 passes through the base plate 2, and two nuts are screwed onto the screw rod. The two nuts clamp the upper and lower surfaces of the base plate 2, thereby locking the height of the base feet 1. The base plate 2 can be leveled by adjusting the height of the base feet 1. A lifting device 4 is provided between the base plate 2 and the main body 10 to move the main body 10 up and down.

[0048] The lifting device 4 includes three vertically arranged legs 3 in a triangular pattern, fixedly connected to the base plate 2. Each leg 3 has a cylindrical sliding column 20 slidably connected to its top, and the tops of all three sliding columns 20 are fixedly connected to the bottom of the main body 10. A mounting plate is fixedly connected between the upper parts of the three legs 3. A worm gear screw jack is located between the mounting plate and the main body 10. The housing of the worm gear screw jack is fixedly connected to the mounting plate, and the screw of the worm gear screw jack is vertical, with its top fixedly connected to the main body 10. By cranking the handwheel on the worm gear screw jack, the screw moves up and down, thereby moving the main body 10 up and down to facilitate adjusting the height of the main body 10 and aligning the connecting plate 6 on the main body 10 with the mold.

[0049] The above embodiments are described in detail and specifically, illustrating preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, they are not limited to the present invention, and the patent scope of the present invention cannot be limited by this embodiment alone. That is, any equivalent changes or modifications made to the spirit disclosed in the present invention, without departing from the structure of the present invention, such as local improvements within the system and modifications and transformations between subsystems, are still within the patent scope of the present invention.

Claims

1. A TPV multi-composite external generator head, characterized in that, Includes a main body (10), the front of the main body (10) is provided with at least two discharge ports (18), the side of the main body (10) is provided with the same number of inlets (17) as the discharge ports (18), the inlets (17) and discharge ports (18) correspond one to one, the discharge ports (18) are respectively connected to the corresponding inlets (17), the inlets (17) are detachably connected with a second connector (14), the main body (10) is provided with an electric heating rod (9) inserted into it, and the main body (10) is provided with a temperature sensor (11) next to the electric heating rod (9). The main body (10) is connected to a first connector (12) at the feed inlet (17). The first connector (12) is provided with a movable nut (15) at one end, which is movably connected to it. The other end of the movable nut (15) is threadedly connected to a second connector (14). A temperature sensor (11) is also inserted into the second connector (14). The second connector (14) is covered with an insulation sleeve (13). The second connector (14) and the movable nut (15) are both located inside the insulation sleeve (13). The end of the first connector (12) away from the feed inlet (17) is a spherical connecting part (22). The outer diameter of the connecting part (22) is larger than the inner diameter of the movable nut (15) near the end of the first connector (12). The connecting part (22) is located inside the movable nut (15). The connecting part (22) is sandwiched between the movable nut (15) and the second connector (14). The mating surfaces of the movable nut (15) and the connecting part (22) and the mating surfaces of the second connector (14) and the connecting part (22) are both spherical surfaces corresponding to the connecting part (22).

2. The TPV multi-composite external generator head according to claim 1, characterized in that, The discharge ports (18) are four evenly distributed along the circumference. The feed ports (17) are four that correspond one-to-one with the four discharge ports (18). The four feed ports (17) are all located on the side of the main body (10). The second connectors (14) are four that are detachably connected to the four feed ports (17). The main body (10) is provided with four flow channels (16). The four flow channels (16) correspond one-to-one with the four feed ports (17). Each feed port (17) and the corresponding discharge port (18) are connected through the corresponding flow channel (16).

3. The TPV multi-composite external generator head according to claim 2, characterized in that, Four discharge ports (18) are arranged in a cross shape at the front of the main body (10). Two inlets (17) are respectively located on the left and right sides of the main body (10), and the other two inlets (17) are located at the rear of the main body (10). The center line of the inlet (17), the center line of the corresponding discharge port (18), and the center line of the corresponding flow channel (16) are located on the same horizontal plane.

4. The TPV multi-composite external generator head according to claim 1, characterized in that, The main body (10) has a connecting plate (6) detachably connected to the front of the discharge port (18), and the connecting plate (6) is provided with a guide hole (19) communicating with the discharge port (18).

5. A TPV multi-composite external generator head according to claim 1, characterized in that, The front part of the main body (10) is connected to a support block (5), which is lower than the discharge port (18).

6. The TPV multi-composite external generator head according to claim 1, characterized in that, A base plate (2) is provided below the main body (10), and a lifting device (4) for driving the main body (10) to move up and down is provided between the base plate (2) and the main body (10).

7. A TPV multi-composite external generator head according to claim 6, characterized in that, The lifting device (4) includes a vertical support leg (3) fixedly connected to the base plate (2) and a sliding column (20) slidably connected to the top of the support leg (3). The top of the sliding column (20) is fixedly connected to the main body (10). A worm gear screw jack is provided between the support leg (3) and the main body (10). The housing of the worm gear screw jack is fixedly connected to the support leg (3). The screw of the worm gear screw jack is vertical, and the top of the screw is fixedly connected to the main body (10).

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