A plastic slider injection molding processing equipment for crane boom

Abstract

This invention relates to the field of plastic slider processing technology for crane booms, specifically to an injection molding processing equipment for plastic sliders used in crane booms. The equipment includes a molding unit and a processing unit. The molding unit performs injection molding on the plastic slider, using a submerged gate to ensure that burrs at the parting surface of the molded plastic slider coincide with the gate, reducing the surface processing difficulty of the plastic slider. This improves the surface quality of the plastic slider after processing by the processing unit. The processing unit only requires one processing step for the plastic slider, thus improving the processing efficiency and quality of the plastic sliders produced.

Description

Technical Field

[0001] This invention relates to the field of plastic slider processing technology for crane booms, specifically to a plastic slider injection molding processing equipment for crane booms. Background Technology

[0002] Plastic sliders for crane booms are important wear parts of crane booms. They have the characteristics of self-lubrication, good wear resistance, light weight and low cost. Therefore, there is a large demand for plastic sliders, and their quality standards are gradually improving. Plastic sliders are generally processed by injection molding.

[0003] During injection molding, burrs may appear on the parting surface of the molded plastic slider, and there may be a gate at the top. Therefore, it needs to be removed by processing. Generally, manual removal is used, but its efficiency is low. If traditional equipment is used for removal, each plastic slider needs to be fixed first and then processed. Since the parts of the plastic slider that need to be processed are different, it is difficult to completely remove the surface of the plastic slider in one go using traditional equipment. Therefore, the processing efficiency of the plastic slider is low, and the gate marks at the top of the processed plastic slider affect the quality of the plastic slider, resulting in a lower quality of the processed plastic slider. Summary of the Invention

[0004] In view of the above problems, this application provides a plastic slider injection molding processing equipment for crane booms to solve the technical problems of low surface quality and low processing efficiency of plastic sliders in related technologies. To achieve the above objective, this application provides the following technical solution.

[0005] The first aspect of this application provides a plastic slider injection molding processing equipment for a crane boom, including a molding unit and a processing unit: the processing unit, located at the right end of the molding unit, is used to perform surface processing on the molded plastic slider; the molding unit includes a worktable, a fixed mold base is fixedly installed on the upper end of the worktable, guide pillars are uniformly fixedly installed on the upper end of the fixed mold base, guide sleeves are slidably connected to the guide pillars, and a moving mold base is fixedly installed on the guide sleeves; an upper mold is fixedly installed on the lower end of the moving mold base, and a lower mold is fixedly installed on the upper end of the fixed mold base; the upper mold and the lower mold cooperate to shape the plastic slider; a control cylinder is fixedly installed on the upper end of the worktable. One end is fixedly connected to the moving mold base, which is equipped with a submerged gate. A high-pressure injection molding machine for injecting high-pressure liquid plastic into the cavity formed by the upper and lower molds is fixedly installed in the middle of the moving mold base. A pusher frame for pushing the molded plastic slider to the processing unit is fixedly installed on the upper part of the worktable and on the left side of the fixed mold base. The processing unit includes a transport frame. A transport frame for transporting the plastic slider is set on the upper part of the worktable and on the right side of the lower base of the mold. A control cylinder two is fixedly installed on the upper part of the worktable and on the rear right half of the transport frame. A fixing block is fixedly installed at the lower end of the control cylinder two. A cutting frame for cutting burrs on the plastic slider is fixedly installed at the lower end of the fixing block.

[0006] According to an embodiment of the present invention, the lower end face of the upper mold is horizontal and smooth, an anti-overflow frame is fixedly installed on the upper end of the upper mold, and positioning posts are evenly provided on the upper end of the upper mold.

[0007] According to an embodiment of the present invention, the upper end of the lower mold is provided with a forming groove, the inner wall of the forming groove is smooth, the lower end of the lower mold and the outer side of the forming groove are provided with a mating groove that cooperates with the anti-overflow frame, and the lower end of the upper mold is provided with positioning grooves that cooperate with the positioning posts.

[0008] According to an embodiment of the present invention, the pusher frame includes a rectangular block. A rectangular block is fixedly installed on the upper end of the worktable and on the left side of the fixed mold base frame. An electric telescopic rod is fixedly installed on the right end of the rectangular block. A pusher component is fixedly installed on the right end of the electric telescopic rod. A rubber block is fixedly installed on the right end of the pusher component.

[0009] According to an embodiment of the present invention, the transport frame includes a sprocket. Two sprockets are rotatably connected from left to right on the upper part of the worktable and on the right side of the lower base of the mold. The sprockets are connected to each other by a toothed chain belt. A stepper motor is fixedly installed at the front end of the worktable via a motor mount. The output shaft of the stepper motor is fixedly connected to the sprocket on the left side via a coupling. Limit blocks are symmetrically fixedly installed at the front and rear ends of the worktable and on the left half of the toothed chain belt. Multiple cylindrical springs are fixedly installed at the opposite ends of the limit blocks. The ends of the cylindrical springs on the same limit block are fixedly installed with a pressing block. The surface of the toothed chain belt is evenly provided with material dropping holes. A collection box is snapped into the lower end of the worktable.

[0010] According to an embodiment of the present invention, the cutting frame includes a cutting blade, a cutting blade is fixedly installed at the lower end of a fixing block, a compression spring is fixedly installed at the lower end of the fixing block and inside the cutting blade, a push-out block is fixedly installed at the lower end of the compression spring, a crushing blade is uniformly fixedly installed at the lower end of the cutting blade, a grid blade is fixedly installed at the inner end of the cutting blade, a cylindrical spring II is fixedly installed at the inner end of the cutting blade and inside the grid blade, and a prism block is fixedly installed at the end of the cylindrical spring II.

[0011] According to an embodiment of the present invention, the fixed mold base frame includes a fixed template, a fixed template is fixedly installed on the upper end of the worktable, a top plate is fixedly installed on the upper end of the fixed template, and top rods are fixedly installed at the four corners of the upper end of the top plate, with the top rods penetrating the lower mold.

[0012] According to an embodiment of the present invention, the moving mold base includes a moving template and a guide sleeve that are fixedly installed on the moving template. A sprue sleeve is fixedly installed at the upper middle part of the moving template. The lower end of the moving template is fixedly connected to the upper mold. A submarine gate is fixedly installed between the moving template and the upper mold. The upper end of the submarine gate is fixedly connected to the sprue sleeve. The sprue sleeve is fixedly connected to the high-pressure injection molding machine.

[0013] As can be seen from the above technical solutions, the present invention has the following advantages: 1. In the present invention, by cooperating with the anti-overflow frame, a small amount of liquid plastic is prevented from overflowing from the gap between the upper mold and the lower mold, resulting in material waste. By cooperating with the positioning column and the positioning groove, the alignment between the upper mold and the lower mold is ensured, thereby ensuring that the parting surface of the plastic slider after molding has less burr, reducing the amount of material waste, and at the same time reducing the cutting difficulty of the cutting frame.

[0014] 2. In this invention, the burrs on the plastic slider are cut by the cutting blade, and the shredding blade ensures that the burrs are separated from the plastic slider at the same time. The cutting blade continues to move downward, and the grid blade scrapes off the burrs on the plastic slider that have not been completely removed. The elastic force of the compression spring drives the ejector block to squeeze the plastic slider, so that the plastic slider is smoothly squeezed out of the cutting blade and the plastic slider is prevented from getting stuck in the cutting blade. The cylindrical spring drives the prismatic block to push out the burr debris remaining in the grid blade, so as to prevent the burr debris from being stuck in the grid blade and affecting the scraping effect of the grid blade.

[0015] 3. In this invention, the gate on the molded plastic slider is located at the burr by using a submerged gate, so that the cutting frame removes the gate while removing the burrs on the plastic slider, so that there are no gate marks on the surface of the plastic slider, thus improving the surface quality of the plastic slider.

[0016] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems solved by the embodiments of this application based on a plastic slider injection molding processing equipment for crane booms, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 A front perspective three-dimensional structural diagram of a plastic slider injection molding processing equipment for a crane boom provided according to an embodiment of the present invention is shown.

[0019] Figure 2 A front sectional planar structural schematic diagram of a plastic slider injection molding processing equipment for a crane boom provided according to an embodiment of the present invention is shown.

[0020] Figure 3 It shows Figure 2 A magnified view of a portion at point N.

[0021] Figure 4 A front view schematic diagram of a plastic slider injection molding processing equipment for a crane boom provided according to an embodiment of the present invention is shown.

[0022] Figure 5 It shows Figure 4 A sectional view along the AA direction.

[0023] Figure 6 It shows Figure 4 A sectional view along the BB direction.

[0024] Figure 7 It shows Figure 6 A magnified view of a portion of point M.

[0025] Figure 8 It shows Figure 7 A magnified view of a portion at point E.

[0026] Figure 9 A schematic diagram of the front view structure of the grid blades and prism blocks is shown.

[0027] The above figures include the following reference numerals:

[0028] 1. Molding unit; 11. Worktable; 12. Fixed mold base; 121. Fixed mold plate; 122. Ejector plate; 123. Ejector rod; 13. Guide pillar; 14. Guide sleeve; 15. Moving mold base; 151. Moving mold plate; 152. Sprue sleeve; 16. Upper mold; 161. Overflow prevention frame; 162. Positioning pillar; 17. Lower mold; 171. Molding groove; 172. Mating groove; 173. Positioning groove; 18. Control cylinder one; 19. Submerged gate; 191. High-pressure injection molding machine; 20. Ejector frame; 201. Rectangular block; 202. Electric telescopic... 2. Rod; 203. Pusher; 204. Rubber block; 2. Processing unit; 21. Transport frame; 211. Sprocket 1; 212. Toothed chain belt 1; 213. Stepper motor 1; 214. Limit block; 215. Cylindrical spring 1; 216. Extrusion block; 217. Drop hole; 218. Collection box; 22. Control cylinder 2; 23. Fixing block; 24. Cutting frame; 241. Cutting blade; 242. Extrusion spring; 243. Push-out block; 244. Crushing blade; 245. Grid blade; 246. Cylindrical spring 2; 247. Prism block. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] See Figure 1 , Figure 2 and Figure 3A plastic slider injection molding processing equipment for crane boom includes a molding unit 1 and a processing unit 2. The processing unit 2 is located at the right end of the molding unit 1 and is used to perform surface processing on the molded plastic slider. The molding unit 1 includes a worktable 11, a fixed mold base 12 is fixedly installed on the upper end of the worktable 11, guide pillars 13 are uniformly fixedly installed on the upper end of the fixed mold base 12, guide sleeves 14 are slidably connected to the guide pillars 13, and a moving mold base 15 is fixedly installed on the guide sleeves 14. An upper mold 16 is fixedly installed on the lower end of the moving mold base 15, and the upper end of the fixed mold base 12 is fixedly installed with... The worktable 11 is equipped with a lower mold 17, and an upper mold 16 cooperates with the lower mold 17 to shape the plastic slider. A control cylinder 18 is fixedly installed on the upper end of the worktable 11, and the end of the control cylinder 18 is fixedly connected to the moving mold base 15. A submarine gate 19 is provided on the moving mold base 15. A high-pressure injection molding machine 191 for injecting high-pressure liquid plastic into the cavity formed by the upper mold 16 and the lower mold 17 is fixedly installed on the upper part of the middle of the moving mold base 15. A pusher 20 for pushing the molded plastic slider to the processing unit 2 is fixedly installed on the upper end of the worktable 11 and located on the left side of the fixed mold base 12. 2. The system includes a transport frame 21. A transport frame 21 for transporting plastic sliders is located on the upper end of the worktable 11 and to the right of the lower base of the mold. A control cylinder 22 is fixedly installed on the upper end of the worktable 11 and to the rear right half of the transport frame 21. A fixing block 23 is fixedly installed at the lower end of the control cylinder 22. A cutting frame 24 for cutting burrs on the plastic slider is fixedly installed at the lower end of the fixing block 23. First, the moving mold base 15 is moved downwards by the control cylinder 18 until the upper mold 16 and the lower mold 17 are in close contact. At this time, high-pressure liquid plastic is injected into the moving mold base 15 by the high-pressure injection molding machine 191. High-pressure liquid plastic enters the cavity formed by the upper mold 16 and the lower mold 17 through the submarine gate 19. After a certain period of time, the moving mold base 15 is moved upward by the control cylinder 18, and the molded plastic slider is pushed out by the fixed mold base 12. The molded plastic slider is pushed to the transport frame 21 by the pusher frame 20. The transport frame 21 drives the plastic slider to move to the right until the plastic slider moves directly below the fixed block 23. At this time, the fixed block 23 is moved downward by the control cylinder 22, so that the cutting frame 24 moves downward to cut the burrs on the surface of the plastic slider.

[0031] See Figure 3 and Figure 5 The lower end surface of the upper mold 16 is horizontal and smooth, and an anti-overflow frame 161 is fixedly installed on the upper end of the upper mold 16. Positioning posts 162 are evenly provided on the upper end of the upper mold 16.

[0032] See Figure 2 , Figure 3 and Figure 5The lower mold 17 has a forming groove 171 at its upper end, and the inner wall of the forming groove 171 is smooth. The lower end of the lower mold 17 and the outer side of the forming groove 171 have a mating groove 172 that cooperates with the anti-overflow frame 161. The lower end of the upper mold 16 has evenly spaced positioning grooves 173 that cooperate with the positioning pins 162. Through the cooperation of the upper mold 16 and the lower mold 17, the forming groove 171 shapes the plastic slider. Through the cooperation of the mating groove 172 with the anti-overflow frame 161, a small amount of liquid plastic is prevented from overflowing from the gap between the upper mold 16 and the lower mold 17, resulting in material waste. Through the cooperation of the positioning pins 162 with the positioning grooves 173, the alignment between the upper mold 16 and the lower mold 17 is ensured.

[0033] See Figure 2 The pusher frame 20 includes a rectangular block 201. The rectangular block 201 is fixedly installed on the upper end of the worktable 11 and on the left side of the fixed mold base frame 12. An electric telescopic rod 202 is fixedly installed on the right end of the rectangular block 201. A pusher component 203 is fixedly installed on the right end of the electric telescopic rod 202. A rubber block 204 is fixedly installed on the right end of the pusher component 203. The pusher component 203 is moved to the right by the electric telescopic rod 202. The rubber block 204 first contacts the plastic slider. Under the pushing force of the electric telescopic rod 202, the plastic slider is pushed to the right out of the mold 17 and into the transport frame 21.

[0034] See Figure 2 and Figure 5 The transport frame 21 includes sprockets 211. Two sprockets 211 are rotatably connected from left to right on the upper end of the workbench 11, located on the right side of the lower base of the mold. The sprockets 211 are connected by a toothed chain belt 212. A stepper motor 213 is fixedly mounted on the front end of the workbench 11 via a motor mount. The output shaft of the stepper motor 213 is fixedly connected to the left sprocket 211 via a coupling. Limiting blocks 214 are symmetrically fixedly mounted at both ends of the workbench 11, on the left half of the toothed chain belt 212. Multiple cylindrical springs 215 are fixedly mounted on opposite ends of each limiting block 214. The cylindrical spring 215 on 214 is fixedly mounted with a pressing block 216 at its end. The toothed chain belt 212 has uniformly opened drop holes 217 on its surface. The lower end of the worktable 11 is clamped with a collection box 218. The stepper motor 213 drives the sprocket 211 to rotate, thereby driving the toothed chain belt 212 to move. The cylindrical spring 215 cooperates with the pressing block 216 to press the plastic slider pushed onto the toothed chain belt 212, so that the plastic slider is in the middle of the toothed chain belt 212. The burrs and debris removed from the surface of the plastic slider smoothly enter the collection box 218 through the drop holes 217 and are collected.

[0035] See Figure 6 , Figure 7 , Figure 8 and Figure 9The cutting frame 24 includes a cutting blade 241. The cutting blade 241 is fixedly mounted on the lower end of a fixing block 23. A compression spring 242 is fixedly mounted on the lower end of the fixing block 23 and inside the cutting blade 241. A push-out block 243 is fixedly mounted on the lower end of the compression spring 242. Crushing blades 244 are evenly fixedly mounted on the lower end of the cutting blade 241. Grid blades 245 are fixedly mounted on the inner ends of the cutting blade 241. A cylindrical spring 246 is fixedly mounted on the inner end of the cutting blade 241 and inside the grid blades 245. A prismatic block 247 is fixedly mounted at the end of the cylindrical spring 246. When the plastic slider is transported to directly below the fixing block 23, the stepper motor 213 drives the toothed chain belt 212 to stop moving. At this time, the cylinder 22 is controlled... 2. The cutting blade 241 moves downward, cutting the burrs on the plastic slider. The crushing blade 244 ensures that the burrs are separated from the plastic slider. The cutting blade 241 continues to move downward, scraping off any remaining burrs on the plastic slider by the grid blade 245. The spring force of the compression spring 242 drives the ejector block 243 to squeeze the plastic slider, allowing it to be smoothly expelled from the cutting blade 241 and preventing it from getting stuck inside. The cylindrical spring 246 drives the prismatic block 247 to push out the burr debris remaining in the grid blade 245, preventing it from being trapped inside and affecting the scraping effect of the grid blade 245.

[0036] See Figure 2 , Figure 3 and Figure 5 The fixed mold base 12 includes a fixed template 121. The fixed template 121 is fixedly installed on the upper end of the worktable 11. The top plate 122 is fixedly installed on the upper end of the fixed template 121. The top rods 123 are fixedly installed at the four corners of the upper end of the top plate 122. The top rods 123 penetrate the lower mold 17. The molded plastic slider is ejected from the lower mold 17 by the top rods 123.

[0037] See Figure 2 and Figure 5 The moving mold base 15 includes a moving template 151 and a guide sleeve 14, which are fixedly installed together. A sprue sleeve 152 is fixedly installed at the upper middle part of the moving template 151. The lower end of the moving template 151 is fixedly connected to the upper mold 16. A submarine gate 19 is fixedly installed between the moving template 151 and the upper mold 16. The upper end of the submarine gate 19 is fixedly connected to the sprue sleeve 152. The sprue sleeve 152 is fixedly connected to the high-pressure injection molding machine 191. The submarine gate 19 makes the gate on the molded plastic slider located at the burr. The cutting frame 24 removes the burrs on the plastic slider and removes the gate at the same time, so that there are no gate marks on the surface of the plastic slider, thus improving the surface quality of the plastic slider.

[0038] The working principle of this invention is as follows: First step: First, the moving mold base 15 is moved downward by the control cylinder 18 until the upper mold 16 and the lower mold 17 are in close contact. At this time, high pressure liquid plastic is injected into the moving mold base 15 by the high pressure injection molding machine 191. The high pressure liquid plastic enters the cavity formed by the upper mold 16 and the lower mold 17 through the submerged gate 19.

[0039] Step 2: After a certain period of time, the moving mold base 15 is moved upward by the control cylinder 18, the molded plastic slider is pushed out by the fixed mold base 12, the molded plastic slider is pushed to the transport frame 21 by the pusher frame 20, and the plastic slider is moved to the right by the transport frame 21.

[0040] Step 3: When the plastic slider moves directly below the fixed block 23, the fixed block 23 is moved downward by the control cylinder 22, thereby causing the cutting frame 24 to move downward to cut the burrs on the surface of the plastic slider.

[0041] In the description of this invention, it should be understood that the terms "center," "middle," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "end," "axial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Furthermore, the terms "first," "second," "number one," "number two," "one," and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A plastic slider injection molding processing equipment for crane boom, characterized in that... It includes a molding unit (1) and a processing unit (2): The processing unit (2) is located at the right end of the molding unit (1) and is used to perform surface processing on the molded plastic slider. The molding unit (1) includes a worktable (11), a fixed mold base (12) is fixedly installed on the upper end of the worktable (11), guide pillars (13) are evenly fixedly installed on the upper end of the fixed mold base (12), guide sleeves (14) are connected to the guide pillars (13) in a sliding fit, and a moving mold base (15) is fixedly installed on the guide sleeves (14). An upper mold (16) is fixedly installed on the lower end of the moving mold base (15), and a lower mold (17) is fixedly installed on the upper end of the fixed mold base (12). The upper mold (16) and the lower mold (17) cooperate to shape the plastic slider. A control cylinder (18) is fixedly installed on the upper end of the worktable (11). The end of the control cylinder (18) is fixedly connected to the moving mold base (15). The moving mold base (15) is provided with a submerged gate (19). The upper part of the middle of the moving mold base (15) is fixedly installed with a high-pressure injection molding machine (191) that injects high-pressure liquid plastic into the cavity formed by the upward mold (16) and the lower mold (17). The upper part of the worktable (11) and the left side of the fixed mold base (12) is fixedly installed with a pusher (20) that pushes the plastic slider after molding to the processing unit (2). The processing unit (2) includes a transport frame (21). The upper end of the workbench (11) and the right side of the mold base are provided with a transport frame (21) for transporting plastic sliders. The upper end of the workbench (11) and the rear side of the right half of the transport frame (21) are fixedly installed with a control cylinder (22). The lower end of the control cylinder (22) is fixedly installed with a fixing block (23). The lower end of the fixing block (23) is fixedly installed with a cutting frame (24) for cutting burrs on the plastic sliders. The cutting frame (24) includes a cutting blade (241), a cutting blade (241) is fixedly installed at the lower end of a fixing block (23), a compression spring (242) is fixedly installed at the lower end of the fixing block (23) and inside the cutting blade (241), a push-out block (243) is fixedly installed at the lower end of the compression spring (242), a crushing blade (244) is evenly fixedly installed at the lower end of the cutting blade (241), a grid blade (245) is fixedly installed at the inner end of the cutting blade (241), a cylindrical spring (246) is fixedly installed at the inner end of the cutting blade (241) and inside the grid blade (245), and a prism block (247) is fixedly installed at the end of the cylindrical spring (246).

2. The plastic slider injection molding equipment for crane boom according to claim 1, characterized in that: The transport frame (21) includes a sprocket (211). Two sprockets (211) are rotatably connected from left to right on the upper end of the worktable (11) and located on the right side of the mold's lower base. The sprockets (211) are connected by a toothed chain belt (212). A stepper motor (213) is fixedly mounted on the front end of the worktable (11) via a motor mount. The output shaft of the stepper motor (213) is fixedly connected to the sprocket (211) on the left side via a coupling. 11) Limiting blocks (214) are symmetrically fixedly installed at both ends of the front and rear ends and on the left half of the toothed chain belt (212). Multiple cylindrical springs (215) are fixedly installed on opposite ends of the limiting blocks (214). The ends of the cylindrical springs (215) on the same limiting block (214) are fixedly installed with a pressing block (216). The surface of the toothed chain belt (212) is evenly provided with dropping holes (217). A collection box (218) is snapped into the lower end of the worktable (11).

3. The plastic slider injection molding equipment for crane boom according to claim 1, characterized in that: The moving mold base (15) includes a moving template (151) and a guide sleeve (14) together fixedly installed on the moving template (151). A sprue sleeve (152) is fixedly installed at the upper middle part of the moving template (151). The lower end of the moving template (151) is fixedly connected to the upper mold (16). A submarine gate (19) is fixedly installed between the moving template (151) and the upper mold (16). The upper end of the submarine gate (19) is fixedly connected to the sprue sleeve (152). The sprue sleeve (152) is fixedly connected to the high-pressure injection molding machine (191).

4. The plastic slider injection molding equipment for crane boom according to claim 1, characterized in that: The fixed mold base (12) includes a fixed template (121). The fixed template (121) is fixedly installed on the upper end of the workbench (11). The top plate (122) is fixedly installed on the upper end of the fixed template (121). The top rods (123) are fixedly installed at the four corners of the upper end of the top plate (122). The top rods (123) penetrate the lower mold (17).

5. The plastic slider injection molding equipment for crane boom according to claim 1, characterized in that: The pusher frame (20) includes a rectangular block (201). The rectangular block (201) is fixedly installed on the upper end of the worktable (11) and on the left side of the fixed mold base frame (12). An electric telescopic rod (202) is fixedly installed on the right end of the rectangular block (201). A pusher component (203) is fixedly installed on the right end of the electric telescopic rod (202). A rubber block (204) is fixedly installed on the right end of the pusher component (203).

6. The plastic slider injection molding equipment for crane boom according to claim 1, characterized in that: The lower end face of the upper mold (16) is horizontal and smooth. An anti-overflow frame (161) is fixedly installed on the upper end of the upper mold (16). Positioning posts (162) are evenly provided on the upper end of the upper mold (16).

7. The plastic slider injection molding equipment for crane boom according to claim 6, characterized in that: The lower mold (17) has a forming groove (171) at its upper end. The inner wall of the forming groove (171) is smooth. The lower end of the lower mold (17) and the outer side of the forming groove (171) have a mating groove (172) that matches the anti-overflow frame (161). The lower end of the upper mold (16) has a positioning groove (173) that matches the positioning post (162) evenly distributed at its lower end.

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