Production equipment for injection and pultrusion

Abstract

Production equipment for injection and pultrusion comprises an injection and solidification integrated device, a yarn frame and a glue injection machine, and the injection and solidification integrated device comprises a glue injection mold, a yarn threading plate, a glue extrusion mold, a transition section and a solidification mold; one end of the glue injection mold is detachably connected with the yarn threading plate, and the other end is connected with the glue extrusion mold; the transition section is connected between the glue extruding mold and the curing mold and is used for insulating heat; the outer side of the glue injection mold is connected with a silica gel heating ring; a glue injection hole is formed in the glue injection mold; the glue injection hole is connected with a glue injection machine through a glue pipe; the glue injection mold is also connected with a thermometer for detecting temperature; and a heating block is mounted on the outer side of the curing mold. According to the design of the yarn threading plates, the yarn threading plates are connected through detachable connecting structures, various different yarn threading plates can be replaced conveniently, and the yarn threading plates can be replaced according to actual requirements.

Description

Technical Field

[0001] The invention relates to a yarn processing device, in particular to a production device for injection pultrusion. Background Art

[0002] Existing injection pultrusion production equipment, for example: an injection device and an injection pultrusion molding method with the invention patent publication number CN118789853A, which discloses a glue injection machine and an injection pultrusion mold, the injection mold threading plate structure design is unreasonable, can not ensure that the yarn is fully separated and impregnated with resin, the injection section cavity is too large, resulting in excessive resin waste and increased costs, the injection section and the extrusion section are not set with a reasonable transition zone, the yarn is easily worn, the extrusion section structure design is unscientific, can not make the resin in the cavity fully flow and the yarn further impregnated to ensure more complete impregnation; the extrusion section and The curing section is provided with an extended section to control unreasonable heat transfer. The extended section is made of metal and has good thermal conductivity. It cannot effectively reduce the heat transferred from the curing mold to the extrusion section and the injection section, which will cause the resin in the extrusion section and the injection section to gel prematurely, shorten the use time, and deteriorate the performance of the prepared product; the production line does not provide monitoring of yarn breakage, which may easily lead to the failure to detect yarn breakage in time, thereby reducing product performance; the electronic temperature control device often deviates from the displayed temperature and the actual temperature, which is not convenient for the real control of the temperature of the injection section; this patent is mainly improved to address the problems existing in the invention patent. Summary of the invention

[0003] The present invention aims to solve the technical problem of providing a production equipment for injection pultrusion with a yarn threading plate that is detachably connected and has a reasonably set transition zone. The injection mold of the equipment uses a thermometer to detect the temperature, and the production line has a monitoring function for yarn breakage. A transition section for heat insulation is designed between the extrusion mold and the curing mold.

[0004] In order to solve the above technical problems, the technical solution of a production equipment for injection pultrusion of the present invention is:

[0005] It comprises an injection-curing integrated device, a yarn rack for guiding yarns to the injection-curing integrated device, and a glue injection machine for supplying glue to the injection-curing integrated device. The injection-curing integrated device comprises a glue injection mold, a yarn threading plate, a glue extrusion mold, a transition section and a curing mold; one end of the glue injection mold is detachably connected to the yarn threading plate, and the other end is connected to the glue extrusion mold; the transition section is connected between the glue extrusion mold and the curing mold for heat insulation; a silicone heating ring is connected to the outside of the glue injection mold; a glue injection hole is opened on the glue injection mold; the glue injection hole is connected to the glue injection machine through a rubber hose; a cone section surface is arranged inside the glue injection mold; The diameter of the conical section surface gradually decreases from the end close to the yarn threading plate to the end close to the glue extrusion mold; the glue extrusion mold is provided with an extended conical surface extending from the conical section surface on the side connected to the glue injection mold; the glue injection mold is provided with a glue release hole at the end with the largest diameter of the conical section surface; the glue injection mold is also connected to a thermometer for detecting temperature; a heating block is installed on the outside of the curing mold; a plurality of rollers for guiding the yarn are rotatably connected to the yarn rack; a speed sensor for detecting the speed of the roller is installed on one of the plurality of rollers; an alarm is also installed on the yarn rack; the speed sensor is connected to the alarm.

[0006] The threading plate is circular with fiber felt holes or circular without fiber felt holes, or square with fiber felt holes or square without fiber felt holes.

[0007] The yarn threading plate is detachably connected to the glue injection mold through a sealing ring; the sealing ring is detachably connected to the glue injection mold, and the yarn threading plate is locked between the sealing ring and the glue injection mold.

[0008] The threading plate is circular with fiber felt holes or circular without fiber felt holes; the sealing ring is threadedly connected to the injection mold; an anti-loosening device is arranged between the sealing ring and the injection mold to prevent the sealing ring and the injection mold from rotating relative to each other; the anti-loosening device comprises a limiting sleeve sleeved on the injection mold; the limiting sleeve is connected to the injection mold by bolts; the end of the sealing ring is connected to a limiting ring plate; the outer periphery of the limiting sleeve is laterally slidably connected to an insert rod; the limiting ring plate is provided with an insert hole corresponding to the insert rod; one end of the insert rod is inserted into the insert hole, and the other end passes through the limiting sleeve and is connected to a connecting block; a spring is connected between the connecting block and the limiting sleeve; one end of the spring is welded to the connecting block, and the other end is welded to the limiting sleeve.

[0009] The threading plate is square with fiber felt holes or square without fiber felt holes; the end sealing ring is connected to the injection mold by bolts.

[0010] A first rubber gasket is connected between the yarn threading plate and the glue injection mold.

[0011] The heating blocks of the injection mold and the curing mold are both provided with thermometer sockets; thermometers are inserted into the thermometer sockets; and the thermometers are mercury thermometers.

[0012] The injection mold is provided with a first positioning ring on the side connected to the extrusion mold; the extrusion mold is provided with a first positioning ring groove corresponding to the first positioning ring on the side connected to the injection mold; the first positioning ring is inserted into the first positioning ring groove, and a second rubber gasket is placed in the first positioning ring; the second rubber gasket is located between the injection mold and the extrusion mold; the injection mold and the extrusion mold are connected by bolts; the extrusion mold is provided with a second positioning ring on the side connected to the transition section; the transition section is provided with a second positioning ring groove corresponding to the second positioning ring on the side connected to the extrusion mold; the second positioning ring is inserted into the second positioning ring groove, and a third rubber gasket is placed in the second positioning ring; the third rubber gasket is located between the transition section and the extrusion mold; the transition section and the extrusion mold are connected by bolts.

[0013] The transition section is hollow; an insulating gasket is arranged between the transition section and the curing mold; the transition section and the curing mold are connected by bolts; a waist-shaped opening is opened on the transition section for convenient observation of the yarn dipping and reducing the heat transfer of the curing mold.

[0014] The glue injection machine includes a machine platform, a glue storage device and a hydraulic device connected to a hydraulic push rod; the glue storage device and the hydraulic device are both installed on the machine platform, and the glue storage device and the hydraulic device are arranged horizontally; a piston is arranged in the glue storage device; the end of the hydraulic push rod is connected to the piston; a glue storage barrel is connected to the top of the glue storage device, and the glue outlet of the glue storage device is connected to a rubber hose; a first blocking ring is installed at the connection between the rubber hose and the glue storage device; a second blocking ring is connected between the glue storage device and the glue storage barrel; a small glue storage device is installed on the rubber hose.

[0015] The technical effects that can be achieved by the present invention are:

[0016] 1. The present invention allows the yarn on the yarn rack to pass through three rollers of different heights, one of which is equipped with a speed sensor for detecting the speed of the roller. When the yarn breaks, the roller stops rotating, and the speed sensor transmits a signal to the alarm, thereby sounding an alarm, so that the worker can know in time and deal with the broken yarn;

[0017] 2. In the design of the yarn threading board, the yarn threading board adopts a detachable connection structure to facilitate the replacement of various yarn threading boards. The yarn threading board can be replaced according to actual needs;

[0018] 3. The present invention uses a thermometer to measure temperature, which is more accurate;

[0019] 4. A conical surface and an extended conical surface are designed between the injection mold and the extrusion mold. The yarn is guided by the conical surface and the extended conical surface, which is not easy to be worn. The glue release hole is located at the end side with the largest diameter of the conical surface of the injection mold, which is convenient for releasing the glue;

[0020] 5. A transition section is designed between the extrusion mold and the curing mold to insulate the two and reduce the impact between them. A waist-shaped opening is opened in the transition section to facilitate observation of the yarn dipping and reduce heat transfer from the curing mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a structural schematic diagram of a production equipment for injection pultrusion of the present invention;

[0023] Figure 2 yes Figure 1 A magnified view of part A;

[0024] Figure 3 yes Figure 1 A magnified view of part B;

[0025] Figure 4 yes Figure 1 Enlarged view of part C;

[0026] Figure 5 It is a schematic diagram of the structure of each threading plate;

[0027] Figure 6 It is a structural diagram of the glue injection machine;

[0028] Figure 7 It is a structural diagram of a yarn rack. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] See also Figures 1 to 7 .

[0031] A production equipment for injection pultrusion, comprising an injection-curing integrated device, a yarn rack 1 for guiding yarns for the injection-curing integrated device, and a glue injection machine for supplying glue to the injection-curing integrated device, the injection-curing integrated device comprising a glue injection mold 5, a yarn threading plate 2, a glue extrusion mold 7, a transition section 8 and a curing mold 10; one end of the glue injection mold 5 is detachably connected to the yarn threading plate 2, and the other end is connected to the glue extrusion mold 7; specifically, the yarn threading plate 2 is circular with fiber felt holes 22 or circular without fiber felt holes 22 or square with fiber felt holes 22 or square without fiber felt holes 22, the yarn threading plate 2 is detachably connected to the glue injection mold 5 through a sealing ring 3, the sealing ring 3 is detachably connected to the glue injection mold 5, and the yarn threading plate 2 is locked between the sealing ring 3 and the glue injection mold 5; more specifically, when the yarn threading plate 2 is circular with fiber felt holes 22 or circular without fiber felt holes 22 When the sealing ring 3 is threadedly connected to the injection mold 5, an anti-loosening device is arranged between the sealing ring 3 and the injection mold 5 to prevent the sealing ring 3 and the injection mold 5 from rotating relative to each other; the anti-loosening device comprises a limiting sleeve 31 sleeved on the injection mold 5, the limiting sleeve 31 is connected to the injection mold 5 by bolts, the end of the sealing ring 3 is connected to a limiting ring plate 36, the outer periphery of the limiting sleeve 31 is laterally slidably connected with an insertion rod 32, and the limiting ring plate 36 is provided with an insertion hole 33 corresponding to the insertion rod 32; one end of the insertion rod 32 is inserted into the insertion hole 33, and the other end passes through the limiting sleeve 31 and is connected to a connecting block 34; a spring 35 is connected between the connecting block 34 and the limiting sleeve 31, one end of the spring 35 is welded to the connecting block 34, and the other end is welded to the limiting sleeve 31; when the threading plate 2 is square with fiber felt holes 22 or square without fiber felt holes 22, the sealing ring 3 is connected to the injection mold 5 by bolts.

[0032] The design of the existing threading plate 2 only considers the threading of fibers, but does not consider the threading of fiber felt, and the fibers are not separated to the maximum extent, which may easily cause insufficient impregnation. In the design of the threading plate 2 of the present invention, the threading plate 2 is connected with a detachable connection structure, which is convenient for the threading plate 2 to be replaced according to actual needs, and is relatively convenient and quick. Specifically, a first rubber gasket 4 is connected between the threading plate 2 and the glue injection mold 5.

[0033] The transition section 8 is connected between the glue extrusion die 7 and the curing die 10 for heat insulation; specifically, the transition section 8 is hollow, and an insulating gasket 9 is arranged between the transition section 8 and the curing die 10; the transition section 8 is connected to the curing die 10 by bolts, and a waist-shaped opening 83 is opened on the transition section 8 for convenient observation of the yarn impregnation and reduction of heat transfer of the curing die 10; the transition section 8 of the present invention is a hollow design, and 3-6 waist-shaped openings are designed to facilitate observation of the yarn impregnation and reduction of heat transfer of the curing die 10.

[0034] The outside of the injection mold 5 is connected to a silicone heating ring 53; the injection mold 5 is provided with an injection hole 54, which is connected to the injection machine through a rubber hose 5924; a conical section 52 is provided inside the injection mold 5, and the diameter of the conical section 52 gradually decreases from the end close to the threading plate 2 to the end close to the extrusion mold 7, and the extrusion mold 7 is provided with an extended conical surface 71 extending from the conical section 52 on the side connected to the injection mold 5, and the injection mold 5 has a glue release hole 56 at the end with the largest diameter of the conical section 52; specifically, the internal taper of the injection mold 5 and the extrusion mold 7 of the present invention is set to 5-20°, and the injection hole 54 It is designed to be close to one-third of the glue extrusion mold 7. The glue injection mold 5 is provided with a quarter straight section from the yarn outlet, and a glue release hole 56 is designed below the straight section; the front quarter of the glue extrusion mold 7 is designed as a conical section, and the rear three quarters are designed as a straight section. The inner diameter of the straight section is consistent with the inner diameter of the transition section 8 and the inner diameter of the curing mold 10. The present invention designs a conical section surface 52 and an extended conical surface 71 between the glue injection mold 5 and the glue extrusion mold 7. The yarn is guided by the conical section surface 52 and the extended conical surface 71, which is not easy to be worn, and the glue release hole 56 is located on the end side of the maximum diameter of the conical section surface 52 of the glue injection mold 5, so as to facilitate the release of the glue.

[0035] A heating block 102 is installed on the outside of the curing mold 10, and a thermometer for detecting temperature is also connected to the injection mold 5. Specifically, the injection mold 5 and the heating block 102 of the curing mold 10 are both provided with a thermometer socket 55, and a thermometer is inserted in the thermometer socket 55. The thermometer is a mercury thermometer, which is used to accurately measure the temperature. The temperature obtained by the thermometer inserted on the injection mold 5 is used to compare with the control temperature of the silicone heating ring 53, and the thermometer located on the heating block 102 of the curing mold 10 is used to accurately measure the actual temperature on the heating block 102.

[0036] A plurality of rollers 14 for guiding the yarn are rotatably connected to the yarn frame 1; among the plurality of rollers 14, a speed sensor for detecting the rotation speed of the roller 14 is installed on one of the rollers 14, and an alarm 13 is also installed on the yarn frame 1, and the speed sensor is connected to the alarm 13; specifically, the present invention allows the yarn on the yarn frame 1 to pass through three rollers 14 of different heights, wherein the roller 14 in the middle has the functions of a speed sensor and an alarm 13, when the yarn breaks, the middle roller 14 does not rotate, the speed sensor can monitor it, and thus send a signal to the alarm 13, and the alarm 13 will sound an alarm, so that the workers can know in time and deal with the broken yarn.

[0037] In the connection between the injection mold 5 and the extrusion mold 7, the injection mold 5 is provided with a first positioning ring 58 on the side connected to the extrusion mold 7, and the extrusion mold 7 is provided with a first positioning ring groove corresponding to the first positioning ring 58 on the side connected to the injection mold 5. The first positioning ring 58 is inserted into the first positioning ring groove, and a second rubber gasket 6 is placed in the first positioning ring 58; the second rubber gasket 6 is located between the injection mold 5 and the extrusion mold 7; the injection mold 5 and the extrusion mold 7 are connected by bolts; and in the connection between the extrusion mold 7 and the transition section 8, A second positioning ring 81 is provided on the side of the rubber extrusion die 7 connected to the transition section 8, and a second positioning ring groove corresponding to the second positioning ring 81 is opened on the side of the transition section 8 connected to the rubber extrusion die 7. The second positioning ring 81 is inserted into the second positioning ring groove, and a third rubber gasket 74 is placed in the second positioning ring 81; the third rubber gasket 74 is located between the transition section 8 and the rubber extrusion die 7; the transition section 8 and the rubber extrusion die 7 are connected by bolts; the connection between the injection mold 5 and the rubber extrusion die 7 of the present invention is relatively convenient, and the connection between the rubber extrusion die 7 and the transition section 8 is relatively convenient.

[0038] Specifically, the glue injection machine of the present invention comprises a machine platform 59, a glue storage device 592 and a hydraulic device 591 connected to a hydraulic push rod 5911; the glue storage device 592 and the hydraulic device 591 are both installed on the machine platform 59, and the glue storage device 592 and the hydraulic device 591 are arranged horizontally; a piston 593 is arranged in the glue storage device 592, the end of the hydraulic push rod 5911 is connected to the piston 593, a glue storage barrel 5922 is connected to the top of the glue storage device 592, and the glue outlet of the glue storage device 592 is connected to a rubber hose 5924; a first blocking ring 5923 is installed at the connection between the rubber hose 5924 and the glue storage device 592, and a second blocking ring 5921 is connected between the glue storage device 592 and the glue storage barrel 5922; a small glue storage device 5926 is installed on the rubber hose 5924; the glue injection machine of the present invention is designed to be placed horizontally, using hydraulic The hydraulic push rod 5911 is made to move back and forth, a second blocking ring 5921 is provided between the glue delivery pipeline of the glue storage barrel 5922 and the glue storage device 592, and a first blocking ring 5923 is also provided between the glue storage device 592 and the rubber hose 5924. When injecting glue into the glue injection mold 5, the first blocking ring 5923 at the rubber hose 5924 is opened, and the second blocking ring 5921 below the glue storage barrel 5922 is closed. When adding glue to the glue storage device, the first blocking ring 5923 is closed, and the second blocking ring 5921 below the glue storage barrel 5922 is opened. The glue in the glue storage barrel 5922 can be added manually, or it can be designed as a glue mixing device for mechanical glue addition. The glue feeding amount of the glue injection section of the glue injection mold 5 can be controlled by closing and adjusting the switch above the glue injection hole 54, so as to try to prevent glue from flowing out of the yarn threading hole or to ensure that there is very little glue flowing out, so as to reduce costs.

[0039] When in use, first place the glue liquid in the glue storage barrel 5922, the hydraulic push rod 5911 is at the top of the glue storage device 592, ensure that there is as little air as possible in the glue storage device 592, close the first blocking ring 5923 at the glue storage device 592 connecting the rubber hose 5924, open the glue storage barrel 5922 to pass the second blocking ring 5921 of the glue storage device 592, start the hydraulic push rod 5911, and the glue liquid in the glue storage barrel 5922 flows into the glue storage device 592. When the glue liquid in the glue storage device 592 is full, the hydraulic push rod 5911 stops moving, and the glue in the glue storage barrel 5922 is The amount of glue liquid must be ensured to be always present but not overflowing; close the second blocking ring 5921 of the glue storage barrel 5922 to allow the glue liquid to enter the glue storage device 592, open the first blocking ring 5923 entering the glue hose 5924, and the hydraulic push rod 5911 begins to push the glue liquid into the glue hose 5924. During the production process, ensure that the small glue storage device 5926 is filled with glue liquid to prevent the glue liquid in the glue hose 5924 from flowing back; the existing glue injection machine is placed vertically, and the stability is not strong enough during the glue injection process, and the safety cannot be guaranteed. The glue injection machine of the present invention is designed to be placed horizontally, which can effectively avoid this problem.

[0040] Specifically, an embodiment of the present invention provides an injection pultrusion mold, in which the yarn feeding plate 2 is designed to be circular, and the diameter of the solid core rod used for pultrusion is φ20. Each yarn feeding hole is used to pass 2-4 balls of yarn. 2 balls of yarn are selected again, and the cross-sectional area of ​​the yarn feeding hole is 1.2 times the cross-sectional area of ​​the yarn. The yarn feeding hole can be circular or elliptical or other shapes. The elliptical shape is selected here. The internal cone section of the injection mold 5 and the extrusion mold 7 is designed to be 15°, the length of the injection mold 5 is designed to be 60cm, and the heating temperature of the injection mold 5 is set to 40°C. The length of the extrusion mold 7 is designed to be 40cm, the length of the transition section 8 is designed to be 30cm, the length of the waist-shaped opening 83 is 20cm, and the width is 4cm. The waist-shaped opening 83 can be designed to be 4, and the heating of the curing mold 10 can be designed to be 4-stage heating, and the temperature can be set according to the performance of the resin system.

[0041] Specifically, in an embodiment of the present invention, the yarn feeding plate 2 may be designed to be circular, the diameter of the solid core rod used for pultruding the surface guide felt is φ30, each yarn feeding hole is used to feed 3 balls of yarn, and the cross-sectional area of ​​the yarn feeding hole is 1.25 times the cross-sectional area of ​​the yarn. The yarn feeding hole may be circular, and the fiber felt passes through the semi-circular hole in two halves. The fiber felt has a gram weight of 45g / m2, and the fiber felt has overlaps to ensure that the surface fiber felt is fully covered. The internal cone section of the injection mold 5 and the extrusion mold 7 is designed to be 10°, the length of the injection mold 5 is designed to be 60cm, and the heating temperature of the injection mold 5 is set to 35°C. The length of the extrusion mold 7 is designed to be 32cm, the length of the transition section 8 is designed to be 40cm, the length of the waist-shaped opening 83 is 30cm, and the width is 6cm. The waist-shaped opening 83 can be designed to be 3, and the heating of the curing mold 10 can be designed to be 5-stage heating, and the temperature can be set according to the performance of the resin system.

Claims

1. A production equipment for injection pultrusion, comprising an injection-curing integrated device, a yarn rack (1) for guiding yarn to the injection-curing integrated device, and a glue injection machine for supplying glue to the injection-curing integrated device, characterized in that: The injection-curing integrated device comprises a glue injection mold (5), a yarn threading plate (2), a glue extrusion mold (7), a transition section (8) and a curing mold (10); one end of the glue injection mold (5) is detachably connected to the yarn threading plate (2), and the other end is connected to the glue extrusion mold (7); the transition section (8) is connected between the glue extrusion mold (7) and the curing mold (10) for heat insulation; a silicone heating ring (53) is connected to the outer side of the glue injection mold (5); a glue injection hole (54) is provided on the glue injection mold (5); the glue injection hole (54) is connected to the glue injection machine through a rubber hose (5924); a conical section surface (52) is provided inside the glue injection mold (5); the conical section surface (52) extends from the end close to the connection to the yarn threading plate (2) to the end close to the connection to the glue extrusion mold (7 ) end diameter gradually decreases; the glue extrusion mold (7) is provided with an extended conical surface (71) extending from the conical section surface (52) on the side connected to the glue injection mold (5); the glue injection mold (5) is provided with a glue release hole (56) at the end with the largest diameter of the conical section surface (52); the glue injection mold (5) is also connected to a thermometer for detecting temperature; a heating block (102) is installed on the outer side of the curing mold (10); a plurality of rollers (14) for guiding the yarn are rotatably connected to the yarn frame (1); one of the plurality of rollers (14) is installed with a speed sensor for detecting the speed of the roller (14); an alarm (13) is also installed on the yarn frame (1); the speed sensor is connected to the alarm (13).

2. The production equipment for injection pultrusion according to claim 1, characterized in that: The threading plate (2) is circular with fiber felt holes (22) or circular without fiber felt holes (22) or square with fiber felt holes (22) or square without fiber felt holes (22).

3. The production equipment for injection pultrusion according to claim 2, characterized in that: The yarn threading plate (2) is detachably connected to the glue injection mold (5) via a sealing ring (3); the sealing ring (3) is detachably connected to the glue injection mold (5), and the yarn threading plate (2) is locked between the sealing ring (3) and the glue injection mold (5).

4. The production equipment for injection pultrusion according to claim 3, characterized in that: The threading plate (2) is circular with fiber felt holes (22) or circular without fiber felt holes (22); the end-sealing ring (3) is threadedly connected to the injection mold (5); an anti-loosening device is provided between the end-sealing ring (3) and the injection mold (5) to prevent the end-sealing ring (3) and the injection mold (5) from rotating relative to each other; the anti-loosening device comprises a limiting sleeve (31) sleeved on the injection mold (5); the limiting sleeve (31) is connected to the injection mold (5) by bolts; the end of the end-sealing ring (3) is connected to a limiting ring plate (36); the outer periphery of the limiting sleeve (31) is laterally slidably connected with an insertion rod (32); the limiting ring plate (36) is provided with an insertion hole (33) corresponding to the insertion rod (32); one end of the insertion rod (32) is inserted into the insertion hole (33), and the other end passes through the limiting sleeve (31) and is connected to a connecting block (34); a spring (35) is connected between the connecting block (34) and the limiting sleeve (31); one end of the spring (35) is welded to the connecting block (34), and the other end is welded to the limiting sleeve (31).

5. The production equipment for injection pultrusion according to claim 3, characterized in that: The threading plate (2) is square with fiber felt holes (22) or square without fiber felt holes (22); the sealing ring (3) is connected to the injection mold (5) by bolts.

6. The production equipment for injection pultrusion according to claim 3, characterized in that: A first rubber gasket (4) is connected between the yarn threading plate (2) and the glue injection mold (5).

7. The production equipment for injection pultrusion according to claim 1, characterized in that: The heating blocks (102) of the injection mold (5) and the curing mold (10) are both provided with thermometer sockets (55); thermometers are inserted into the thermometer sockets (55); and the thermometers are mercury thermometers.

8. The production equipment for injection pultrusion according to claim 1, characterized in that: The side of the injection mold (5) connected to the extrusion mold (7) is provided with a first positioning ring (58); the side of the extrusion mold (7) connected to the injection mold (5) is provided with a first positioning ring groove corresponding to the first positioning ring (58); the first positioning ring (58) is inserted into the first positioning ring groove, and a second rubber gasket (6) is placed in the first positioning ring (58); the second rubber gasket (6) is located between the injection mold (5) and the extrusion mold (7); the injection mold (5) and the extrusion mold (7) are connected by bolts. ; The rubber extrusion die (7) is provided with a second positioning ring (81) on its side connected to the transition section (8); The transition section (8) is provided with a second positioning ring groove corresponding to the second positioning ring (81) on its side connected to the rubber extrusion die (7); The second positioning ring (81) is inserted into the second positioning ring groove, and a third rubber gasket (74) is placed in the second positioning ring (81); The third rubber gasket (74) is located between the transition section (8) and the rubber extrusion die (7); The transition section (8) and the rubber extrusion die (7) are connected by bolts.

9. The production equipment for injection pultrusion according to claim 1, characterized in that: The transition section (8) is hollow; a heat insulating gasket (9) is provided between the transition section (8) and the curing mould (10); the transition section (8) and the curing mould (10) are connected by bolts; and a waist-shaped opening (83) is provided on the transition section (8) for conveniently observing the yarn dipping condition and reducing heat transfer of the curing mould (10).

10. The production equipment for injection pultrusion according to claim 1, characterized in that: The glue injection machine comprises a machine platform (59), a glue storage device (592) and a hydraulic device (591) connected to a hydraulic push rod (5911); the glue storage device (592) and the hydraulic device (591) are both installed on the machine platform (59), and the glue storage device (592) and the hydraulic device (591) are arranged transversely; a piston (593) is arranged in the glue storage device (592); the end of the hydraulic push rod (5911) is connected to the piston (593) ; A glue storage barrel (5922) is connected to the top of the glue storage device (592), and the glue outlet of the glue storage device (592) is connected to a rubber hose (5924); a first blocking ring (5923) is installed at the connection between the rubber hose (5924) and the glue storage device (592); a second blocking ring (5921) is connected between the glue storage device (592) and the glue storage barrel (5922); a small glue storage device (5926) is installed on the rubber hose (5924).

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