A nozzle punching device

Abstract

The utility model provides a water gap punching device, including installation bottom plate, product support, lower knife subassembly and upper knife subassembly, product support and upper knife subassembly are fixed on installation bottom plate, and lower knife subassembly is fixed on product support. Product support includes support bottom plate, pillar, support mounting panel, linear bearing, guide shaft, support cylinder and product baseplate etc. ; Lower knife subassembly is composed of lower knife vertical board, guide plate, slide, lower knife and lower knife cylinder etc. ; Upper knife subassembly includes upper knife bottom plate, upper knife vertical board, cutting knife up-down cylinder, cutting knife, pressure block up-down cylinder and pressure block. When working, lower knife stretches into water gap position and props up water gap, and upper knife presses down and cuts and cooperates pressure block and tears off water gap, and product baseplate can follow motion and press down to realize separation through cutting knife up-down cylinder. The device is compact in structure, coordinated in action, is suitable for the automatic punching of water gap of plastic, metal die casting and other products, and has the advantages of high efficiency, stability and smooth cut.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding equipment, and more specifically, to a sprue punching device. Background Technology

[0002] The sprue is the connection point between the frame and the injection molded part during the injection molding process. It is considered a redundant part and needs to be removed after molding. Currently, this is mainly done manually by operators. The specific process involves the injection molding machine's ejector taking the part out of the mold, then transferring it to a pneumatic shearing device for automatic cutting, and finally, the operator using a sprue to smooth it. This method is extremely inefficient. Taking an electronic price tag screen as an example, it has four sprue gates, meaning there are four sprue gates that need to be removed. Manually removing these sprue gates would be extremely time-consuming and labor-intensive.

[0003] While existing ultrasonic cutting methods can achieve the cutting function, they generate a large amount of powder residue that adheres to the surface of the injection molded part during the cutting process, making it difficult to remove. Therefore, this method has significant drawbacks. To solve these problems, we propose a sprue punching device. Utility Model Content

[0004] The purpose of this utility model is to address the problems raised in the existing background technology. To achieve the above-mentioned utility model objective, this utility model provides the following technical solution: a sprue punching device, including a mounting base plate, a product platform, a lower blade assembly, and an upper blade assembly, wherein the lower blade assembly is fixed to the product platform, and the product platform and the upper blade assembly are fixed to the mounting base plate.

[0005] As a preferred technical solution of this utility model, the product platform is composed of a platform base plate, support columns, a platform mounting plate, linear bearings, guide shafts, platform cylinders, limiting columns, product bases, and product positioning blocks. The product positioning blocks are fixed on the product base, the product base is fixed on the guide shaft, and the cylinder is connected through a floating joint. The linear bearings, platform cylinders, and limiting columns are fixed on the platform mounting plate, the platform mounting plate is fixed on the support columns, and the support columns are distributed and fixed on the platform base plate.

[0006] As a preferred technical solution of this utility model, the lowering blade assembly consists of a lowering blade upright plate, a guide plate, a sliding plate, a lowering blade, a pressure plate, a connecting plate, an adjusting screw mounting block, a floating joint, a floating joint connecting plate, a buffer, and a lowering blade cylinder. The buffer is fixed to the floating joint connecting plate, the sliding plate, the floating joint connecting plate, and the adjusting screw mounting block are fixed to the connecting plate, the floating joint is fixed to the lowering blade cylinder and connected to the floating joint connecting plate, the lowering blade cylinder is fixed to the lowering blade upright plate, the lowering blade upright plate and the pressure plate are fixed to the guide plate, and the lowering blade is fixed to the sliding plate, which is located in the slot opened in the guide plate.

[0007] As a preferred technical solution of this utility model, the upper blade assembly consists of an upper blade base plate, an upper blade upright plate, an upper blade mounting plate, upper and lower cutting cylinders, a cutting blade, upper and lower pressure block cylinders, and a pressure block. The pressure block is connected to the upper and lower pressure block cylinders via fixing components. The upper and lower pressure block cylinders and the cutting blade are connected to the upper and lower cutting cylinders via fixing components. The upper and lower cutting cylinders are fixed to the upper blade mounting plate. The upper blade mounting plate is fixed to the upper blade upright plate. The upper blade upright plate is fixed to the upper blade base plate.

[0008] As a preferred technical solution of this utility model, the product base is fixedly connected to the guide shaft and is movably connected to the platform cylinder through a floating joint.

[0009] As a preferred technical solution of this utility model, the lower blade is fixedly connected to the slide plate, the slide plate is fixedly connected to the connecting plate, and the connecting plate is connected to the lower blade cylinder through a floating joint connecting plate and a floating joint.

[0010] As a preferred technical solution of this utility model, the pressing block is connected to the upper and lower cylinders of the pressing block through a fixing member, and the upper and lower cylinders of the pressing block and the cutter are connected to the upper and lower cylinders of the cutter through a fixing member.

[0011] As a preferred technical solution of this utility model, the support column is vertically distributed and fixed on the base plate of the platform, and the platform mounting plate is horizontally fixed on the support column.

[0012] As a preferred technical solution of this utility model, the lower blade plate and the guide plate are vertically fixedly connected, and the pressure plate and the guide plate are fixedly connected.

[0013] As a preferred technical solution of this utility model, the upper blade upright plate and the upper blade bottom plate are vertically fixedly connected, and the upper blade mounting plate and the upper blade upright plate are vertically fixedly connected.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: High efficiency: The pneumatic drive provides a fast response and short production cycle, significantly improving work efficiency; High precision: The combination of pre-padding the lower blade and step-by-step cutting with the upper blade ensures a smooth cut and reduces burrs; Strong adaptability: Suitable for sprue cutting of injection molded or die-cast parts made of various materials such as plastics, aluminum, and magnesium alloys; Strong safety: The product base adopts a buffer structure design, effectively preventing damage to the product during the punching process; Clean and environmentally friendly: It does not generate dust pollution, avoiding the debris problems caused by ultrasonic cutting; Wide versatility: The positioning blocks and cutting tools can be replaced according to different product structures, achieving compatibility with multiple models. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention;

[0016] Figure 2 A schematic diagram of the product platform structure provided for this utility model;

[0017] Figure 3 A schematic diagram of the lower blade assembly structure provided by this utility model;

[0018] Figure 4 A schematic diagram of the lower blade assembly structure provided by this utility model;

[0019] Figure 5 A schematic diagram of the upper blade assembly provided by this utility model.

[0020] The image shows:

[0021] 1. Install the base plate;

[0022] 2. Product platform; 201. Platform base plate; 202. Support column; 203. Platform mounting plate; 204. Linear bearing; 205. Guide shaft; 206. Platform cylinder; 207. Limiting post; 208. Product base; 209. Product positioning block;

[0023] 3. Lowering blade assembly; 301. Lowering blade upright plate; 302. Guide plate; 303. Slide plate; 304. Lowering blade; 305. Pressure plate; 306. Connecting plate; 307. Adjusting screw mounting block; 308. Floating joint; 309. Floating joint connecting plate; 310. Buffer; 311. Lowering blade cylinder;

[0024] 4. Upper blade assembly; 401. Upper blade base plate; 402. Upper blade upright plate; 403. Upper blade mounting plate; 404. Upper and lower cylinders for the cutter; 405. Cutter; 406. Upper and lower cylinders for the pressing block; 407. Pressing block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1: A sprue punching device includes a mounting base plate 1, a product platform 2, a lower blade assembly 3, and an upper blade assembly 4. The lower blade assembly 3 is fixed on the product platform 2, and the product platform 2 and the upper blade assembly 4 are fixed on the mounting base plate 1.

[0028] The product platform 2 consists of a platform base plate 201, support columns 202, platform mounting plate 203, linear bearing 204, guide shaft 205, platform cylinder 206, limiting post 207, product base 208, and product positioning block 209. The product positioning block 209 is fixed on the product base 208, the product base 208 is fixed on the guide shaft 205, and is connected to the platform cylinder 206 through a floating joint. The linear bearing 204, platform cylinder 206, and limiting post 207 are fixed on the platform mounting plate 203, the platform mounting plate 203 is fixed on the support columns 202, and the support columns 202 are distributed and fixed on the platform base plate 201.

[0029] The lowering blade assembly 3 consists of a lowering blade upright plate 301, a guide plate 302, a sliding plate 303, a lowering blade 304, a pressure plate 305, a connecting plate 306, an adjusting screw mounting block 307, a floating joint 308, a floating joint connecting plate 309, a buffer 310, and a lowering blade cylinder 311. The buffer 310 is fixed to the floating joint connecting plate 309. The sliding plate 303, the floating joint connecting plate 309, and the adjusting screw mounting block 307 are fixed to the connecting plate 306. The floating joint 308 is fixed to the lowering blade cylinder 311 and connected to the floating joint connecting plate 309. The lowering blade cylinder 311 is fixed to the lowering blade upright plate 301. The lowering blade upright plate 301 and the pressure plate 305 are fixed to the guide plate 302. The lowering blade 304 is fixed to the sliding plate 303. The sliding plate 303 is located in the slot opened in the guide plate 302.

[0030] The upper blade assembly 4 consists of an upper blade base plate 401, an upper blade upright plate 402, an upper blade mounting plate 403, upper and lower cutting cylinders 404, a cutting blade 405, upper and lower pressure cylinders 406, and a pressure block 407. The pressure block 407 is connected to the upper and lower pressure cylinders 406 via fasteners. The upper and lower pressure cylinders 406 and the cutting blade 405 are connected to the upper and lower cutting cylinders 404 via fasteners. The upper and lower cutting cylinders 404 are fixed to the upper blade mounting plate 403. The upper blade mounting plate 403 is fixed to the upper blade upright plate 402. The upper blade upright plate 402 is fixed to the upper blade base plate 401.

[0031] The product base 208 is fixedly connected to the guide shaft 205, and is movably connected to the stage cylinder 206 through a floating joint.

[0032] The lower cutter 304 is fixedly connected to the slide plate 303, the slide plate 303 is fixedly connected to the connecting plate 306, and the connecting plate 306 is connected to the lower cutter cylinder 311 through the floating joint connecting plate 309 and the floating joint 308.

[0033] The pressing block 407 is connected to the upper and lower cylinders 406 of the pressing block through a fixing component, and the upper and lower cylinders 406 of the pressing block and the cutter 405 are connected to the upper and lower cylinders 404 of the cutter through a fixing component.

[0034] The support column 202 is vertically fixed to the base plate 201 of the platform, and the platform mounting plate 203 is horizontally fixed to the support column 202.

[0035] The lower blade plate 301 and the guide plate 302 are vertically fixedly connected, and the pressure plate 305 and the guide plate 302 are fixedly connected.

[0036] The upper blade upright plate 402 is vertically fixedly connected to the upper blade base plate 401, and the upper blade mounting plate 403 is vertically fixedly connected to the upper blade upright plate 402.

[0037] Example 2: A sprue punching device. The device comprises: a mounting base plate 1, a product platform 2, a lower blade assembly 3, and an upper blade assembly 4; the lower blade assembly 3 is fixed on the product platform 2; the product positioning platform 2 and the upper blade assembly 4 are fixed on the mounting base plate 1.

[0038] like Figure 2As shown, the product positioning platform 2 consists of a platform base plate 201, support columns 202, platform mounting plate 203, linear bearings 204, guide shafts 205, platform cylinders 206, limiting posts 207, product bases 208, and product positioning blocks 209. The product positioning blocks 209 are fixed to the product bases 208. The product bases 208 are fixed to the guide shafts 205 and are connected to the platform cylinders 206 for up-and-down movement via floating joints. The linear bearings 204, platform cylinders 206, and limiting posts 207 are fixed to the platform mounting plate 203. The platform mounting plate 203 is fixed to the support columns 202. The support columns 202 are distributed and fixed on the platform base plate 201.

[0039] like Figure 3 , Figure 4 As shown, the lowering blade assembly 3 consists of a lowering blade upright plate 301, a guide plate 302, a sliding plate 303, a lowering blade 304, a pressure plate 305, a connecting plate 306, an adjusting screw mounting block 307, a floating joint 308, a floating joint connecting plate 309, a buffer 310, and a lowering blade cylinder 311. The buffer 310 is fixed to the floating joint connecting plate 309. The sliding plate 303, the floating joint connecting plate 309, and the adjusting screw mounting block 307 are fixed to the connecting plate 306. The floating joint 308 is fixed to the lowering blade cylinder 311 and connects to the floating joint connecting plate 309. The lowering blade cylinder 311 is fixed to the lowering blade upright plate 301. The lowering blade upright plate 301 and the pressure plate 305 are fixed to the guide plate 302. The lowering blade 304 is fixed to the sliding plate 303. The sliding plate 303 is located in the slot opened in the guide plate 302 and slides.

[0040] like Figure 5 As shown, the upper blade assembly 4 consists of an upper blade base plate 401, an upper blade upright plate 402, an upper blade mounting plate 403, upper and lower cutting cylinders 404, a cutting blade 405, upper and lower pressure cylinders 406, and a pressure block 407. The pressure block 407 is connected to and moves with the upper and lower pressure cylinders 406 via several fixing components. The upper and lower pressure cylinders 406 and the cutting blade 405 are connected to and move with the upper and lower cutting cylinders 404 via several fixing components. The upper and lower cutting cylinders 404 are fixed to the upper blade mounting plate 403. The upper blade mounting plate 403 is fixed to the upper blade upright plate 402. The upper blade upright plate 402 is fixed to the upper blade base plate 401.

[0041] In this example, the product is transported to the product base 208 by a conveying device. The lower blade assemblies 3 on both sides then actuate, with the lower blade 304 extending into the sprue position to cushion it. This ensures that the upper cutting blade, when it operates, levels the surface, guaranteeing a smooth cut. Due to the product's characteristics, the curved edge blocks the sprue; therefore, a two-stage cutting structure (upper and lower blades) is not feasible, as it would damage the product. Instead, the lower blade is pushed in to cushion the sprue, ensuring that the sprue is flush against the lower blade 304 when the upper cutting blade presses down, thus guaranteeing a smooth cut.

[0042] Once the product is in place, the upper and lower cylinders 404 of the cutter drive the cutter 405 to descend, cutting the sprue but not completely severing it; a 0.1mm margin is left to prevent the upper and lower blades from contacting and chipping. Then, the upper and lower cylinders 406 of the pressure block drive the pressure block 407 to press down on the product, severing the sprue from the product. The lower blade holds the sprue in place, and the bottom of the product base 208 is connected to the platform cylinder 206, which, along with the pressure block 407, lowers the product to sever the sprue.

[0043] The product base 208 uses aluminum parts inlaid with polyurethane to buffer some of the force when the pressure block 407 is pressed down, preventing product damage and deformation.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A sprue punching device, characterized in that, It includes a mounting base plate (1), a product platform (2), a lower blade assembly (3), and an upper blade assembly (4). The lower blade assembly (3) is fixed on the product platform (2), and the product platform (2) and the upper blade assembly (4) are fixed on the mounting base plate (1).

2. The sprue punching device according to claim 1, characterized in that, The product platform (2) consists of a platform base plate (201), a support column (202), a platform mounting plate (203), a linear bearing (204), a guide shaft (205), a platform cylinder (206), a limiting post (207), a product base (208), and a product positioning block (209). The product positioning block (209) is fixed on the product base (208), the product base (208) is fixed on the guide shaft (205), and is connected to the platform cylinder (206) through a floating joint. The linear bearing (204), the platform cylinder (206), and the limiting post (207) are fixed on the platform mounting plate (203), the platform mounting plate (203) is fixed on the support column (202), and the support column (202) is distributed and fixed on the platform base plate (201).

3. The sprue punching device according to claim 1, characterized in that, The lowering blade assembly (3) consists of a lowering blade upright plate (301), a guide plate (302), a sliding plate (303), a lowering blade (304), a pressure plate (305), a connecting plate (306), an adjusting screw mounting block (307), a floating joint (308), a floating joint connecting plate (309), a buffer (310), and a lowering blade cylinder (311). The buffer (310) is fixed on the floating joint connecting plate (309). The sliding plate (303) and the floating joint connecting plate (309) are also included in the assembly. The adjusting screw mounting block (307) is fixed on the connecting plate (306), the floating joint (308) is fixed on the lower blade cylinder (311) and connected to the floating joint connecting plate (309), the lower blade cylinder (311) is fixed on the lower blade upright plate (301), the lower blade upright plate (301) and the pressure plate (305) are fixed on the guide plate (302), the lower blade (304) is fixed on the slide plate (303), and the slide plate (303) is located in the slot opened in the guide plate (302).

4. The sprue punching device according to claim 1, characterized in that, The upper blade assembly (4) consists of an upper blade base plate (401), an upper blade upright plate (402), an upper blade mounting plate (403), upper and lower blade cylinders (404), a cutter (405), upper and lower pressure cylinders (406), and a pressure block (407). The pressure block (407) is connected to the upper and lower pressure cylinders (406) through a fixing member. The upper and lower pressure cylinders (406) and the cutter (405) are connected to the upper and lower blade cylinders (404) through a fixing member. The upper and lower blade cylinders (404) are fixed on the upper blade mounting plate (403). The upper blade mounting plate (403) is fixed on the upper blade upright plate (402). The upper blade upright plate (402) is fixed on the upper blade base plate (401).

5. The sprue punching device according to claim 2, characterized in that, The product base (208) is fixedly connected to the guide shaft (205) and is movably connected to the platform cylinder (206) through a floating joint.

6. The sprue punching device according to claim 3, characterized in that, The lower blade (304) is fixedly connected to the slide plate (303), the slide plate (303) is fixedly connected to the connecting plate (306), and the connecting plate (306) is connected to the lower blade cylinder (311) through the floating joint connecting plate (309) and the floating joint (308).

7. The sprue punching device according to claim 4, characterized in that, The pressure block (407) is connected to the upper and lower cylinders (406) of the pressure block through a fixing member, and the upper and lower cylinders (406) of the pressure block and the cutter (405) are connected to the upper and lower cylinders (404) of the cutter through a fixing member.

8. The sprue punching device according to claim 2, characterized in that, The support column (202) is vertically distributed and fixed on the base plate (201) of the platform, and the platform mounting plate (203) is horizontally fixed on the support column (202).

9. The sprue punching device according to claim 3, characterized in that, The lower blade plate (301) and the guide plate (302) are vertically fixedly connected, and the pressure plate (305) and the guide plate (302) are fixedly connected.

10. The sprue punching device according to claim 4, characterized in that, The upper blade upright plate (402) and the upper blade base plate (401) are vertically fixedly connected, and the upper blade mounting plate (403) and the upper blade upright plate (402) are vertically fixedly connected.

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