A high-pressure rubber hose pretreatment device

Abstract

The present invention discloses a pretreatment device for high-pressure rubber hoses, including a crimping and blanking mechanism. The crimping and blanking mechanism includes an equipment box. The left side of the equipment box is fixedly connected to an electric telescopic rod through a bracket. The top of the electric telescopic rod is fixedly connected to a lifting rod through a fixing plate. The present invention relates to the technical field of rubber hose pretreatment. With this pretreatment device for high-pressure rubber hoses, through the combined use of the crimping and blanking mechanism and the clamping and rotating mechanism, the settings of these two mechanisms can install several rubber hoses in a vertical state and use the drive of the motor to rotate them successively below the crimping machine for pretreatment. Each rotation of the multi-faceted turntable in combination with the lifting stroke of the electric telescopic rod and the cooperation between the structures can achieve different and positive functions, enabling the rubber hoses to be corrected, crimped, and blanked after installation. The process is not only stable and efficient but also reduces the overall workload.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tube pretreatment, in particular to a high-pressure rubber tube pretreatment device. Background Art

[0002] High-pressure rubber hoses play many important roles in the industrial field. They are mainly used to transport liquids with a certain pressure and temperature, such as petroleum-based liquids and water-based liquids. They are widely used in mine hydraulic supports, oil field development, engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery and various machine tools. Existing high-pressure rubber hoses need to pre-treat the rubber hoses and metal joints before use and connect them using a crimping machine. The current operation method is to manually place one end of the rubber hose into the crimping machine for operation. Such a large workload leads to high work intensity and low efficiency. Patent documents have now been issued to improve this.

[0003] For example, Chinese patent CN221112922U, a high-pressure rubber tube pretreatment device, relates to the field of rubber tube pretreatment technology, and includes a moving mechanism, and a tube feeding mechanism is fixedly installed between the tops of the moving mechanism. In the utility model, two sliders are movably embedded in two slide grooves opened on the top of the bottom plate, so that two electric telescopic rods drive the two sliders to move in the two slide grooves, thereby moving the supporting plate fixedly installed between the tops of the two sliders. In addition, because the inner surface walls of the three tube grooves are movably inserted with rubber tubes, and the outer surface walls of the rubber tubes are movably sleeved with joint tubes, the rubber tubes and joint tubes that need to be pretreated are at the same horizontal line as the crimping machine, and there is no need for staff to perform this operation. When a large number of rubber tubes and joint tubes need to be pretreated, the intensity of the staff's work fatigue is reduced, thereby improving the work efficiency of the pretreatment.

[0004] Although the equipment in the above documents can replace manual operation and improve the efficiency of pretreatment, it still has obvious defects in actual use, such as:

[0005] When using this equipment, the staff needs to first place several rubber tubes inside the tube groove, and then use the electric telescopic rod and gear motor and other driving mechanisms to push the carrying plate to move. However, in this process, the rubber tube itself is elastic and bends, and cannot be placed straight in the tube groove. At the same time, this will also cause the front end of the rubber tube to be uneven. In addition, when several rubber tubes are arranged together, when one end of one of the rubber tubes is inserted into the crimping machine, the other side-by-side rubber tubes will conflict with the surface of the crimping machine, causing displacement. Although such multi-directional drive operation brings convenience to the staff, it will greatly reduce efficiency.

[0006] Therefore, a preprocessing device for high-pressure rubber hoses that can improve the preprocessing efficiency is now designed to solve such defects. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a preprocessing device for high-pressure rubber hoses, which solves the problems of slow efficiency and poor stability of existing rubber hose preprocessing equipment.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A preprocessing device for high-pressure rubber hoses includes a crimping and blanking mechanism. The crimping and blanking mechanism includes an equipment box. The left side of the equipment box is fixedly connected to an electric telescopic rod through a bracket. The top of the electric telescopic rod is fixedly connected to a lifting rod through a fixing plate. A lifting slide plate is slidably installed on the surface of the lifting rod. A first lifting opening is opened on the left side of the equipment box. The right end of the lifting slide plate passes through the first lifting opening and extends to the inside of the equipment box. One end of the lifting slide plate extending into the equipment box is fixedly connected to a crimping machine. The right side of the crimping machine is fixedly connected to a rectangular pressure rod through a bracket. A first spring is sleeved on the surface of the lifting rod. A clamping and rotating mechanism that cooperates with the crimping machine is installed inside the equipment box.

[0009] Preferably, the top of the electric telescopic rod is fixedly connected to a bent pressing frame through a bracket, and the bent pressing frame is located at the rear of the equipment box. A return spring rod is slidably installed at the rear of the equipment box. The top of the return spring rod is fixedly connected to an upper pressing plate. A second lifting opening is opened at the rear of the inner cavity of the equipment box.

[0010] Preferably, a conical column is fixedly connected to the bottom of the upper pressing plate and located inside the equipment box. The bottom end of the return spring rod is fixedly connected to a strip-shaped cross plate. A third spring is sleeved on the surface of the return spring rod. The top of the bent pressing frame is fixedly connected to a pressure reduction plate that cooperates with the strip-shaped cross plate.

[0011] Preferably, a material taking edge opening is opened on the right side of the equipment box. Sliding strip seats are fixedly connected to the front and rear of the bottom of the inner cavity of the material taking edge opening. A material receiving frame is slidably installed between the two sliding strip seats. A horizontal pulling round rod is slidably installed at the rear of the equipment box, and the right end of the horizontal pulling round rod is fixedly connected to the material receiving frame through a fixing plate. A second spring is sleeved on the surface of the horizontal pulling round rod.

[0012] Preferably, the left end of the horizontal pulling round rod is fixedly connected to a return groove plate that cooperates with the bent pressing frame, and the bent pressing frame is located inside the return groove plate. A loading groove is opened on the surface of the equipment box.

[0013] Preferably, the clamping and rotating mechanism includes a motor, the motor is fixedly installed on the top of the equipment box through a bracket, the output shaft of the motor is fixedly connected with a rotating rod through a coupling, the bottom end of the rotating rod penetrates through the equipment box and extends into the interior of the equipment box, and one end of the rotating rod extending into the interior of the equipment box is rotatably connected to the bottom of the inner cavity of the equipment box through a bearing member. A multi-faceted rotating seat is fixedly connected to the surface of the rotating rod and located inside the equipment box.

[0014] Preferably, a U-shaped seat is fixedly connected to the surface of the multi-faceted rotating seat, and a plurality of U-shaped seats are provided. A first rectangular frame is fixedly connected to the upper part of the surface of the U-shaped seat. A guiding vertical rod is fixedly connected to the bottom of the inner cavity of the U-shaped seat. A sliding sleeve lifting plate is slidably installed on the surface of the guiding vertical rod. A second rectangular frame is fixedly connected to the front end of the sliding sleeve lifting plate. A fourth spring is sleeved on the surface of the guiding vertical rod.

[0015] Preferably, sliding rods are slidably installed on both sides of the first rectangular frame and the second rectangular frame through openings. Rod frames are fixedly connected to the opposite ends of the two sliding rods. A fifth spring is sleeved on the surface of the sliding rod.

[0016] Preferably, a first toothed ring is rotatably connected to the opposite sides of the upper two rod frames through bearing members, a second toothed ring is rotatably connected to the opposite sides of the lower two rod frames through bearing members, and a vertical connecting rod is fixedly connected between the upper and lower sliding rods.

[0017] Preferably, a rectangular insertion cylinder for cooperating with the rectangular pressure rod is fixedly connected to the top of the U-shaped seat through an opening. A pressure-bearing column is fixedly connected to the top of the sliding sleeve lifting plate, and the top end of the pressure-bearing column extends into the inner side of the rectangular insertion cylinder.

[0018] The present invention provides a high-pressure rubber hose pretreatment device. Compared with the existing technology, it has the following beneficial effects:

[0019] (1) This high-pressure rubber hose pretreatment device combines the use of a crimping and blanking mechanism and a clamping and rotating mechanism. The settings of these two mechanisms can install several rubber hoses in a vertical state and use the drive of the motor to rotate them successively under the crimping machine for pretreatment. Each rotation of the multi-faceted rotating seat, combined with the lifting stroke of the electric telescopic rod and the cooperation between the structures, can achieve different and positive functions, enabling the rubber hoses to be corrected, crimped, and blanked after installation. The process is not only stable and efficient but also reduces the overall workload.

[0020] (2) The pre-treatment device for the high-pressure rubber hose is used by rotatably installing a first toothed ring and a second toothed ring on the surface of the U-shaped seat by means of a first rectangular frame, and cooperating with a pressure-bearing column and a rectangular pressure rod. The setting of these structures enables when the electric telescopic rod drives the crimping machine to descend, first making the rectangular pressure rod insert into the rectangular insertion cylinder to press the pressure-bearing column, so that the second toothed ring straightens the whole rubber hose, and driving the first toothed ring to rotate by the tension force during straightening to correct the top end of the rubber hose, preventing problems with the pre-treated rubber hose due to errors during installation, and effectively improving the production quality.

[0021] (3) The pre-treatment device for the high-pressure rubber hose is used by arranging a conical column at the top of the inner cavity of the equipment box and cooperating with a material receiving frame, a return-shaped groove plate and a bent pressing frame. The setting of these structures enables using the downward force of the electric telescopic rod, first making the bent pressing frame extrude the return-shaped groove plate and pulling the material receiving frame to move into the equipment box, and then when the bent pressing frame descends to the bottom, making the pressure drop plate press the upper pressing plate, thereby pushing the conical column to extrude the sliding rod frame, and simultaneously opening the first toothed ring and the second toothed ring by means of the connection of the vertical connecting rod, so that the crimped rubber hose falls into the material receiving frame. After the electric telescopic rod pulls the bent pressing frame to rise, the material receiving frame moves out of the equipment box to the right under the thrust of the second spring, facilitating the staff to take it, and effectively improving the overall practicality and functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of the present invention;

[0023] Figure 2 is a schematic structural view of the crimping and blanking mechanism of the present invention;

[0024] Figure 3 is a sectional view of the equipment box structure of the present invention;

[0025] Figure 4 is a top view of the internal structure of the equipment box of the present invention;

[0026] Figure 5 is a schematic structural view of the lifting slide plate, the first spring and the crimping machine of the present invention;

[0027] Figure 6 is a schematic structural view of the horizontal pulling round rod, the second spring and the return-shaped groove plate of the present invention;

[0028] Figure 7 is a schematic structural view of the conical column, the strip-shaped horizontal plate and the material taking edge of the present invention;

[0029] Figure 8 is a schematic structural view of the clamping and rotating mechanism of the present invention;

[0030] Figure 9Schematic diagram of the first toothed ring, second toothed ring and rectangular insertion cylinder structure of the present invention;

[0031] Figure 10 Schematic diagram of the fourth spring, vertical connecting rod and pressure-bearing column structure of the present invention.

[0032] In the figure: 1. Pressing buckle blanking mechanism; 2. Clamping and rotating mechanism; 101. Equipment box; 102. Electric telescopic rod; 103. Pulling rod; 104. First lifting port; 105. Lifting slide plate; 106. First spring; 107. Pressing buckle machine; 108. Rectangular pressing rod; 109. Bent pressing frame; 110. Rebound rod; 111. Upper pressing plate; 112. Second lifting port; 113. Conical column; 114. Strip-shaped horizontal plate; 115. Pressure reduction plate; 116. Material taking edge; 117. Sliding strip seat; 118. Material receiving frame; 119. Horizontally pulled round rod; 120. Second spring; 121. Return groove plate; 122. Third spring; 123. Loading groove; 201. Motor; 202. Rotating rod; 203. Fourth spring; 204. Multi-faceted rotating seat; 205. U-shaped seat; 206. First rectangular frame; 207. Guide sliding vertical rod; 208. Slide sleeve lifting plate; 209. Second rectangular frame; 210. Slide rod frame; 211. Side rod frame; 212. Fifth spring; 213. First toothed ring; 214. Second toothed ring; 215. Vertical connecting rod; 216. Rectangular insertion cylinder; 217. Pressure-bearing column. Detailed implementation manners

[0033] 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.

[0034] Please refer to Figures 1-10 , the present invention provides a technical solution: a high-pressure rubber tube pretreatment device, including a pressing buckle blanking mechanism 1;

[0035] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7, which shows the overall structure of the snap-fastening and blanking mechanism 1. The snap-fastening and blanking mechanism 1 includes an equipment box 101. The left side of the equipment box 101 is fixedly connected to an electric telescopic rod 102 through a bracket. The top of the electric telescopic rod 102 is fixedly connected to a lifting rod 103 through a fixing plate. A lifting slide plate 105 is slidably mounted on the surface of the lifting rod 103. A first lifting opening 104 is opened on the left side of the equipment box 101. The right end of the lifting slide plate 105 penetrates through the first lifting opening 104 and extends to the inside of the equipment box 101. One end of the lifting slide plate 105 extending into the equipment box 101 is fixedly connected to a snap-fastening machine 107. The right side of the snap-fastening machine 107 is fixedly connected to a rectangular pressing rod 108 through a bracket. A first spring 106 is sleeved on the surface of the lifting rod 103. A clamping and rotating mechanism 2 that cooperates with the snap-fastening machine 107 is installed inside the equipment box 101. The top of the electric telescopic rod 102 is fixedly connected to a bent pressing frame 109 through a bracket, and the bent pressing frame 109 is located at the rear of the equipment box 101. A return spring rod 110 is slidably mounted at the rear of the equipment box 101. The top of the return spring rod 110 is fixedly connected to an upper pressing plate 111. A second lifting opening 112 is opened at the rear of the inner cavity of the equipment box 101. A conical column 113 is fixedly connected to the bottom of the upper pressing plate 111 and located inside the equipment box 101. The bottom end of the return spring rod 110 is fixedly connected to a strip-shaped horizontal plate 114. A third spring 122 is sleeved on the surface of the return spring rod 110. The top of the bent pressing frame 109 is fixedly connected to a pressure drop plate 115 that cooperates with the strip-shaped horizontal plate 114. A material-taking side opening 116 is opened on the right side of the equipment box 101. Sliding strip seats 117 are fixedly connected to both the front and rear of the bottom of the inner cavity of the material-taking side opening 116. A material receiving frame 118 is slidably mounted between the two sliding strip seats 117. A horizontal pulling round rod 119 is slidably mounted at the rear of the equipment box 101, and the right end of the horizontal pulling round rod 119 is fixedly connected to the material receiving frame 118 through a fixing plate. A second spring 120 is sleeved on the surface of the horizontal pulling round rod 119. The left end of the horizontal pulling round rod 119 is fixedly connected to a return groove plate 121 that cooperates with the bent pressing frame 109, and the bent pressing frame 109 is located inside the return groove plate 121. A loading groove 123 is opened on the surface of the equipment box 101.

[0036] In use, first, both ends of the rubber tube are respectively clamped into the interiors of the first toothed ring 213 and the second toothed ring 214. At this time, the first toothed ring 213 and the second toothed ring 214 use the elastic force of the fifth spring 212 to clamp both ends of the rubber tube. Subsequently, the connector tube is sleeved on the top of the rubber tube. Then, the motor 201 is started, and the rotating rod 202 drives the multi-faceted rotating base 204 and several U-shaped seats 205 on the surface to rotate clockwise by 90 degrees. After the rotation is completed, the rubber tube is located below the crimping machine 107. At the same time, the installation of the rubber tube continues at the loading groove 123. Then, the electric telescopic rod 102 is started to drive the lifting rod 103 and the bent pressing frame 109 to descend synchronously. At this time, the lifting slide plate 105 is driven to descend by the elastic force of the first spring 106. At this time, the bottom end of the moment pressing rod 108 first inserts into the rectangular insertion cylinder 216 to press the bearing column 217. After the bearing column 217 is pressed, the second moment frame 209 is driven to descend by the limit of the sliding sleeve lifting plate 208 and the guiding vertical rod 207. At this time, the second moment frame 209 pulls the bottom end of the rubber tube to straighten the entire rubber tube. At this time, since the multi-faceted rotating base 204 and the first toothed ring 213 can rotate, the top end of the rubber tube can be pulled and corrected. After the second moment frame 209 completely descends to the bottom, the moment pressing rod 108 stops descending. At the same time, the crimping machine 107 is docked with the docking head. And the electric telescopic rod 102 will continue to descend by the action of the lifting rod 103 and the lifting slide plate 105. Subsequently, the crimping machine 107 is started to perform pre-crimping of the docking head and the rubber tube. After the pre-treatment is completed, the electric telescopic rod 102 is started to raise the crimping machine 107. Then, the motor 201 is started to continue driving the multi-faceted rotating base 204 to rotate.

[0037] Please refer to Figure 8 、 Figure 9 and Figure 10, which shows the overall structure of the clamping and rotating mechanism 2. The clamping and rotating mechanism 2 includes a motor 201. The motor 201 is a servo motor and is preset to drive a rotation of 90 degrees each time it starts. The motor 201 is fixedly installed on the top of the equipment box 101 through a bracket. The output shaft of the motor 201 is fixedly connected with a rotating rod 202 through a coupling. The bottom end of the rotating rod 202 penetrates through the equipment box 101 and extends into the interior of the equipment box 101. One end of the rotating rod 202 extending into the interior of the equipment box 101 is rotatably connected to the bottom of the inner cavity of the equipment box 101 through a bearing member. A multi-faceted rotating base 204 is fixedly connected to the surface of the rotating rod 202 and located inside the equipment box 101. A U-shaped seat 205 is fixedly connected to the surface of the multi-faceted rotating base 204, and a number of U-shaped seats 205 are provided. The upper part of the surface of the U-shaped seat 205 is fixedly connected with a first rectangular frame 206. The bottom of the inner cavity of the U-shaped seat 205 is fixedly connected with a guiding vertical rod 207. A sliding sleeve lifting plate 208 is slidably installed on the surface of the guiding vertical rod 207. The front end of the sliding sleeve lifting plate 208 is fixedly connected with a second rectangular frame 209. A fourth spring 203 is sleeved on the surface of the guiding vertical rod 207. Both sides of the first rectangular frame 206 and the second rectangular frame 209 are slidably installed with sliding rod frames 210 through openings. One end of the two sliding rod frames 210 facing away from each other is fixedly connected with a side rod frame 211. A fifth spring 212 is sleeved on the surface of the sliding rod frame 210. One side of the upper two side rod frames 211 facing each other is rotatably connected with a first toothed ring 213 through a bearing member. One side of the lower two side rod frames 211 facing each other is rotatably connected with a second toothed ring 214 through a bearing member. A vertical connecting rod 215 is fixedly connected between the upper and lower sliding rod frames 210. The top of the U-shaped seat 205 is fixedly connected with a rectangular insertion cylinder 216 that is used in cooperation with the rectangular pressure rod 108 through an opening. The top of the sliding sleeve lifting plate 208 is fixedly connected with a pressure-bearing column 217, and the top end of the pressure-bearing column 217 extends into the inner side of the rectangular insertion cylinder 216.

[0038] When the rubber tube to be preprocessed rotates to the right, the electric telescopic rod 102 drives the buckle press 107 and the bending press frame 109 to descend at this time, so that the bending press frame 109 descends first to squeeze the return groove plate 121, so that the return groove plate 121 uses the horizontal pull round rod 119 to pull the material receiving frame 118 to move leftward under the limit of the sliding strip seat 117. When the material receiving frame 118 moves leftward to the extreme position, at this time the buckle press 107 will also just be docked with the docking head. Then the continuous descent of the electric telescopic rod 102 will make the pressure drop plate 115 press the upper top pressure plate 111. After the upper top pressure plate 111 is pressed, it will push the tapered column 113 to descend. At this time, the descending tapered column 113 will be inserted into the inner side of the first rectangular frame 206 and squeeze the two slide bar frames 210. Since the upper and lower slide bar frames 210 are both connected by the vertical connecting rod 215, the first gear ring 213 and the second gear ring 214 will be simultaneously squeezed open. The rubber tube that has completed the preprocessing after being opened falls into the inner part of the material receiving frame 118. After the electric telescopic rod 102 rises again, the pressure drop plate 115 and the upper top pressure plate 111 will be separated first, and then the tapered column 113 will rise and disengage from the second rectangular frame 209. As the bending press frame 109 rises, the material receiving frame 118 moves rightward under the thrust of the second spring 120. When the electric telescopic rod 102 rises completely to the top, the material receiving frame 118 also moves to the outside of the equipment box 101. Subsequently, the rubber tube that has completed the preprocessing is taken out.

[0039] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A high-pressure rubber hose pretreatment device, comprising a crimping and blanking mechanism (1), characterized in that: The press-button blanking mechanism (1) includes an equipment box (101). The left side of the equipment box (101) is fixedly connected to an electric telescopic rod (102) through a bracket. The top of the electric telescopic rod (102) is fixedly connected to a lifting rod (103) through a fixing plate. A lifting slide plate (105) is slidably installed on the surface of the lifting rod (103). A first lifting opening (104) is opened on the left side of the equipment box (101). The right end of the lifting slide plate (105) penetrates through the first lifting opening (104) and extends to the inside of the equipment box (101). One end of the lifting slide plate (105) extending into the equipment box (101) is fixedly connected to a press-button machine (107). The right side of the press-button machine (107) is fixedly connected to a rectangular pressing rod (108) through a bracket. A first spring (106) is sleeved on the surface of the lifting rod (103). A clamping and rotating mechanism (2) that cooperates with the press-button machine (107) is installed inside the equipment box (101). The clamping and rotating mechanism (2) includes a motor (201). The motor (201) is fixedly installed on the top of the equipment box (101) through a bracket. The output shaft of the motor (201) is fixedly connected to a rotating rod (202) through a coupling. The bottom end of the rotating rod (202) penetrates through the equipment box (101) and extends to the inside of the equipment box (101). One end of the rotating rod (202) extending into the equipment box (101) is rotatably connected to the bottom of the inner cavity of the equipment box (101) through a bearing member. A multi-faceted rotating seat (204) is fixedly connected to the surface of the rotating rod (202) and is located inside the equipment box (101). A U-shaped seat (205) is fixedly connected to the surface of the multi-faceted rotating seat (204), and several U-shaped seats (205) are provided. A first rectangular frame (206) is fixedly connected to the upper part of the surface of the U-shaped seat (205). A guiding vertical rod (207) is fixedly connected to the bottom of the inner cavity of the U-shaped seat (205). A sliding sleeve lifting plate (208) is slidably installed on the surface of the guiding vertical rod (207). A second rectangular frame (209) is fixedly connected to the front end of the sliding sleeve lifting plate (208). A fourth spring (203) is sleeved on the surface of the guiding vertical rod (207). Sliding rod frames (210) are slidably installed on both sides of the first rectangular frame (206) and the second rectangular frame (209) through openings. One end of the two sliding rod frames (210) facing away from each other is fixedly connected to a side rod frame (211). A fifth spring (212) is sleeved on the surface of the sliding rod frame (210). A first gear ring (213) is rotatably connected to the relatively side of the upper two side rod frames (211) through a bearing member. A second gear ring (214) is rotatably connected to the relatively side of the lower two side rod frames (211) through a bearing member. A vertical connecting rod (215) is fixedly connected between the upper and lower sliding rod frames (210). The top of the U-shaped seat (205) is fixedly connected with a rectangular insertion cylinder (216) that is used in cooperation with the rectangular pressure rod (108) by opening an opening. The top of the sliding sleeve lifting plate (208) is fixedly connected with a pressure-bearing column (217), and the top end of the pressure-bearing column (217) extends to the inside of the rectangular insertion cylinder (216).

2. The pretreatment device for a high-pressure rubber hose according to claim 1, wherein: The top of the electric telescopic rod (102) is fixedly connected with a bent pressure frame (109) through a bracket, and the bent pressure frame (109) is located at the rear of the equipment box (101). A rebound rod (110) is slidably installed at the rear of the equipment box (101). The top end of the rebound rod (110) is fixedly connected with an upper top pressure plate (111). A second lifting opening (112) is opened at the rear of the inner cavity of the equipment box (101).

3. The pretreatment device for a high-pressure rubber hose according to claim 2, characterized in that: A conical column (113) is fixedly connected to the bottom of the upper top pressure plate (111) and located inside the equipment box (101). The bottom end of the rebound rod (110) is fixedly connected with a strip-shaped horizontal plate (114). A third spring (122) is sleeved on the surface of the rebound rod (110). The top end of the bent pressure frame (109) is fixedly connected with a pressure drop plate (115) that is used in cooperation with the strip-shaped horizontal plate (114).

4. The pretreatment device for a high-pressure rubber hose according to claim 3, wherein: A material taking side opening (116) is opened on the right side of the equipment box (101). Sliding bar seats (117) are fixedly connected to the front and rear of the bottom of the inner cavity of the material taking side opening (116). A material receiving frame (118) is slidably installed between the two sliding bar seats (117). A horizontally pulling round rod (119) is slidably installed at the rear of the equipment box (101), and the right end of the horizontally pulling round rod (119) is fixedly connected with the material receiving frame (118) through a fixing plate. A second spring (120) is sleeved on the surface of the horizontally pulling round rod (119).

5. A high-pressure rubber hose pretreatment device according to claim 4, characterized in that: The left end of the horizontally pulling round rod (119) is fixedly connected with a return groove plate (121) that is used in cooperation with the bent pressure frame (109), and the bent pressure frame (109) is located inside the return groove plate (121). A loading groove (123) is opened on the surface of the equipment box (101).

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