Deflashing device for injection-molded shoe sole

Abstract

The utility model discloses a flash removing device for an injection-molded shoe sole. The flash removing device comprises a base and a shoe sole positioning, clamping and scraping assembly arranged on the base. The shoe sole positioning assembly achieves shoe sole contour matching and bottom limiting through a profiling block and a limiting bottom plate. The vertical clamping assembly fixes a shoe sole in multiple directions through a pressing wheel and an air cylinder pressing block, and the horizontal pressing assembly drives a push plate and a spring plunger to conduct lateral pressing through a manual cam. The scraper assembly is provided with an angle-adjustable scraper and a polyurethane guide roller, and is driven by an XY sliding rail to automatically scrape along a profiling path. According to the device, rapid positioning, stable clamping and accurate trimming of the shoe sole are achieved through a mechanical linkage structure, the problems that traditional manual trimming is low in efficiency and high in damage rate are solved, and the device is suitable for shoe soles of various models, has the advantages of being easy and convenient to operate, low in maintenance cost, safe, reliable and the like, and is suitable for automatic trimming treatment after TPU shoe sole injection molding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of athletic shoes sole production and manufacturing technology, especially relates to a injection molded sole flash removing device. BACKGROUND

[0002] In the TPU (thermoplastic polyurethane) sole injection molding process, the flash (burr) is inevitable process defects. The traditional flash removal mainly relies on manual edge trimming with a cutter, which has problems such as low efficiency, high labor intensity, and easy damage to the surface of the sole. The existing automatic equipment generally has the following shortcomings:

[0003] 1. The sole is not fixed stably, which leads to deviation of the trimming path and high rate of defective products; 2. The clamps need to be frequently replaced for different sole models, and the adjustment time is long; 3. The scraping angle and pressure depend on manual experience, and consistency is difficult to guarantee. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a injection molded sole flash removing device.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model relates to a injection molded sole flash removing device, which comprises a base, a sole positioning assembly, a vertical clamping assembly, a horizontal pressing assembly and a scraper assembly are arranged above the base; the sole positioning assembly comprises: a profiling block, the side surface shape of which is matched with the profile of the sole, and the profiling block is fixed in a profiling base through dovetail slot insertion; a limiting bottom plate is fixed above the profiling base, and the edge of the limiting bottom plate is provided with a limiting structure which abuts against the bottom of the sole;

[0007] The vertical clamping assembly comprises: a plurality of pressing wheels distributed along the length direction of the sole, the two ends of the pressing wheels are rotatably connected through shafts arranged on a vertical pressing plate; two pressing cylinders are symmetrically distributed, and a cylinder pressing block is hinged to the end of the piston rod of each pressing cylinder;

[0008] The horizontal pressing assembly comprises: a horizontal push plate which is slidingly connected through a linear guide rail arranged on the profiling base; a manual cam, the cam surface of which is in contact with the rolling part on the side surface of the horizontal push plate to drive the horizontal movement of the push plate; two spring plungers are fixed on the horizontal push plate, and the elastic contact end of each spring plunger abuts against the side surface of the sole;

[0009] The scraper assembly comprises: an XY slide rail which can move horizontally, a scraper bottom plate is fixed on the slide table of the XY slide rail; a scraper is hinged to one end of the scraper bottom plate and locked in place by a bolt; a guide roller made of polyurethane is hinged to the bottom of the scraper bottom plate, and the surface of the guide roller is in rolling contact with the side surface of the profiling block to provide a scraping path guide.

[0010] As a preferred technical scheme of the utility model, the cam positioning column and the cam limiting column are arranged on the profiling base, the manual cam is provided with the arc-shaped track matched with the cam limiting column and the cam mounting hole matched with the cam positioning column in gap, one side of the profiling base is provided with the horizontal baffle, the horizontal assembly reset spring is connected between the horizontal baffle and the horizontal push plate, the cam handle is fixedly connected to the side surface of the manual cam through bolts, and the holding part of the cam handle is covered with the anti-skid silica gel layer.

[0011] As a preferred technical scheme of the utility model, the X direction and Y direction sliding tables of the XY slide rail are respectively connected with reset springs, one end of the reset spring is fixed to the sliding table, and the other end is fixed to the spring fixing base of the base.

[0012] As a preferred technical scheme of the utility model, the hinge of the scraper is provided with an angle scale disc, and the angle is locked through the butterfly bolt, and the division accuracy of the scale disc is ±1°.

[0013] As a preferred technical scheme of the utility model, the profiling block bottom is provided with the dovetail groove structure matched with the profiling base, and the matching positioning key is arranged in the profiling base.

[0014] As a preferred technical scheme of the utility model, the XY slide rail is fixedly connected with the scraper handle through bolts, the curvature radius of the holding part of the scraper handle is 50-80 mm, and the surface is covered with the anti-skid silica gel layer.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] 1. The shoe sole positioning assembly is matched with the limiting bottom plate through the profiling block, realizes the quick and accurate positioning of the shoe sole, is suitable for multiple shoe sole models, and the vertical clamping assembly and the horizontal pressing assembly are in cooperative action, the composite clamping force of the cylinder and the spring plunger is utilized, and the displacement of the shoe sole in the processing process is ensured.

[0017] 2. The XY slide rail is combined with the guide roller, the scraper is guided to automatically track the path along the profiling block contour, manual operation error is avoided, the angle of the scraper is adjustable and is locked through the scale disc, the uniform scraping of the flash of different thicknesses is ensured, and the surface damage of the shoe sole is reduced.

[0018] 3. The manual cam drives the horizontal push plate, the operation is labor-saving and the stroke is controllable, the fatigue degree of workers is reduced, the profiling block is quickly replaced through the dovetail groove, the new shoe sole model is only required to replace the profiling block, and the equipment modification cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification, which are used together with embodiments of the present application to explain the present application and do not constitute a limitation to the present application. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a front view of the present application;

[0022] Figure 3 is a top view of the present application;

[0023] Figure 4 is a schematic diagram of the cross-sectional structure of the present application;

[0024] In the drawings: 1, base; 2, shoe sole positioning assembly; 3, vertical clamping assembly; 4, horizontal pressing assembly; 5, scraper assembly; 21, profiling block; 22, profiling base; 23, limiting bottom plate; 31, pressing wheel; 32, vertical pressing plate; 33, pressing cylinder; 34, cylinder pressing block; 41, horizontal push plate; 42, manual cam; 43, spring plunger; 44, cam positioning column; 45, cam limiting column; 46, arc-shaped track; 47, cam mounting hole; 48, horizontal baffle; 49, horizontal assembly return spring; 50, cam handle; 51, XY slide rail; 52, scraper bottom plate; 53, scraper; 54, guide roller; 55, guide rail baffle; 56, scraper handle. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the present application, and do not constitute a limitation to the present application.

[0026] The same reference numerals in the drawings refer to the same components throughout.

[0027] As Figures 1-4 shown, the present application provides a flash removing device for injection molded shoe sole, and the specific structure and implementation details are as follows:

[0028] The base and sole positioning assembly includes: base 1: rectangular, bottom mounted adjustable foot bolts to adapt to the flatness of the ground. The top of the base 1 is fixed with the profiling base 22, which is an aluminum alloy casting with a two-way dovetail slot insertion structure. Profiling block 21: customized according to the sole model, the side profile completely matches the target sole, the bottom is processed with a two-way dovetail slot, and the positioning key in the profiling base 22 is matched through insertion to realize quick replacement. The surface of the profiling block 21 is covered with a rubber non-slip layer to prevent the sole from sliding. Limiting bottom plate 23: fixed vertically on the top of the profiling base 22 by 4 groups of M10 bolts, the edge is processed with an annular flange structure with a height of 3-5mm, used to limit the position of the sole bottom.

[0029] Please refer to the attached Figure 3 Vertical clamping assembly includes: compression wheel 31: a total of 8 groups, equally distributed along the length direction of the sole, each end of the compression wheel 31 is connected with the stainless steel rotating shaft on the vertical compression plate 32 through deep groove ball bearings, and the surface of the compression wheel 31 is coated with a polyurethane layer to increase the friction. Vertical compression plate 32: L-shaped aluminum alloy plate, connected with base 1 through linear guide rails, can slide in vertical direction. Compression cylinder 33: double-stroke cylinder (stroke 50mm / 100mm), symmetrically installed on both sides of base 1, the end of the piston rod is connected with cylinder compression block 34 through a hinge.

[0030] Cylinder compression block 34: nylon material, bottom processed with anti-skid pattern (pattern depth 0.5mm), compression force is adjusted to 0.3-0.5MPa through cylinder pressure valve.

[0031] Please refer to the attached Figure 3 Horizontal compression assembly includes: horizontal push plate 41: T-shaped aluminum alloy plate, connected with the side of profiling base 22 through two groups of linear guide rails, the sliding direction of the guide rail is parallel to the width direction of the sole, and the sliding stroke is 0-30mm. Manual cam 42: eccentric wheel structure, cam lift is 15mm, the cam surface is in contact with the rolling bearing (model 6200) on the side of the horizontal push plate 41, the cam mounting hole 47 is clearance fitted with the cam positioning column 44 on the profiling base 22 (clearance 0.1mm), and the arc-shaped track 46 is matched with the cam limiting column 45 to limit the rotation angle to 0-180°. Spring plunger 43: elastic plunger with spring pre-tightening force of 5-8N, the end of the plunger is installed with a rubber contact head, which is fixed in the mounting hole of the horizontal push plate 41 through threads. Horizontal assembly return spring 49: stainless steel compression spring (wire diameter 2mm, free length 50mm), connecting horizontal baffle 48 and horizontal push plate 41, providing a return force to make the push plate return to position.

[0032] Please refer to the attached Figures 2-3, the scraper assembly comprises: XY slide rail 51: adopt cross ball linear slide rail (X stroke 200mm, Y stroke 150mm), the bottom of the slide rail is fixed on the machining plane of the base 1 through bolts, the X and Y slide tables are respectively connected with constant force return springs (tension 10N), and the scraper is automatically returned to the center. The scraper bottom plate 52: is fixed on the slide table of the XY slide rail 51 through four groups of M8 bolts, and a hinge shaft mounting hole is processed at the front end of the scraper bottom plate 52. The scraper 53: the cutter head is made of high-speed steel (hardness HRC 62-64), the cutter handle is made of aluminum alloy, the cutter handle is connected with the scraper bottom plate 52 through a hinge shaft, a sector angle scale dial (division accuracy ±1°) is installed at the hinge joint, and the scraping angle is locked through a butterfly bolt. The guide roller 54: is a polyurethane coated roller (diameter 30mm, width 10mm), which is hinged to the bottom of the scraper bottom plate 52 through a stainless steel pin shaft, and the roller is in contact with the side surface of the profiling block 21. The scraper handle 56: is an ergonomic arc design (curvature radius R60mm), which is filled with foamed silica gel inside and covered with a non-slip pattern rubber layer on the surface, and is fixed on the top of the XY slide rail 51 through two groups of M6 bolts.

[0033] The use mode of the utility model is as follows:

[0034] 1. Sole positioning: place the TPU sole on the profiling block 21, and the sole edge is attached to the annular flange of the limiting bottom plate 23.

[0035] 2. Clamping operation: start the pressing cylinder 33, drive the cylinder pressing block 34 to press down to the upper surface of the sole, and the pressing force is stabilized at 0.4MPa; rotate the manual cam 42 to the maximum lift position, push the horizontal push plate 41 to move to the side surface of the sole, and the rubber head of the spring plunger 43 is tightly attached to the side surface of the sole.

[0036] 3. Scraping adjustment: according to the thickness of the flash (usually 0.2-1mm), loosen the butterfly bolt, adjust the scraper 53 to an inclination angle of 30°-45° and lock; hold the scraper handle 56, slowly push the XY slide rail 51 along the contour of the profiling block 21, the guide roller 54 rolls tightly against the profiling block 21, and the scraper 53 removes the flash.

[0037] 4. Reset and maintenance: after scraping is completed, release the pressure of the pressing cylinder 33, reverse rotate the manual cam 42, and the horizontal push plate 41 retreats to the initial position under the action of the reset spring 49; periodically clean the rubber anti-slip layer on the surface of the profiling block 21, and apply lithium-based lubricating grease to the linear guide rail.

[0038] 5. Change type: when the profiling block 21 is replaced, the old profiling block is slid out along the dovetail groove, the new profiling block is inserted and locked, the position of the annular flange of the limiting bottom plate 23 is adjusted (adjusted through the bolt hole), and the model switching can be completed within 10 minutes.

[0039] The utility model relates to a kind of injection shoe sole flash removing device, by multiple components collaborative design, it has solved the pain point of unstable positioning, low efficiency, artificial dependency higher in traditional TPU shoe sole flash removal, with high precision, high adaptability and operation safety, provide a reliable low-cost solution for shoe sole manufacturing industry.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An injection-molded sole flash removal device comprising a base (1), characterized in that: The base (1) is provided with a sole positioning assembly (2), a vertical clamping assembly (3), a horizontal pressing assembly (4) and a scraper assembly (5) above; the sole positioning assembly (2) comprises: a profiling block (21) whose side shape matches the sole contour and is fixed in a profiling base (22) through dovetail slot insertion; a limiting bottom plate (23) fixed above the profiling base (22), the edge of which is provided with a limiting structure abutting against the bottom of the sole; the vertical clamping assembly (3) comprises: a plurality of pressing wheels (31) distributed along the length direction of the sole, the two ends of which are rotatably connected through the rotating shaft provided on the vertical pressing plate (32); two symmetrically distributed pressing cylinders (33), the piston rod end of which is hinged with a cylinder pressing block (34); the horizontal pressing assembly (4) comprises: a horizontal push plate (41) slidingly connected through the linear guide rail provided on the profiling base (22); a manual cam (42), the cam surface of which is in contact with the rolling part on the side surface of the horizontal push plate (41) to drive the horizontal movement of the push plate; two spring plungers (43) fixed on the horizontal push plate (41), the elastic contact end of which abuts against the side surface of the sole; the scraper assembly (5) comprises: an XY slide rail (51) horizontally movable, the slide table of which is fixed with a scraper bottom plate (52); a scraper (53) hinged to one end of the scraper bottom plate (52) and locked in angle through a bolt; a guide roller (54) of polyurethane material hinged to the bottom of the scraper bottom plate (52), and the roller surface is in rolling contact with the side surface of the profiling block (21) to provide the guide of the scraping path.

2. A flash removal apparatus for injection molded shoe soles according to claim 1, wherein The profiling base (22) is provided with a cam positioning column (44) and a cam limiting column (45), the manual cam (42) is provided with an arc-shaped track (46) matched with the cam limiting column (45) and a cam mounting hole (47) gap matched with the cam positioning column (44); one side of the profiling base (22) is provided with a horizontal baffle (48), and the horizontal baffle (48) is connected with the horizontal push plate (41) through a horizontal assembly reset spring (49); the side surface of the manual cam (42) is fixedly connected with a cam handle (50) through a bolt, and the grip part of the cam handle (50) is covered with a non-slip silica gel layer.

3. A flash removal apparatus for injection molded shoe soles according to claim 1, wherein The X and Y direction slide tables of the XY slide rail (51) are respectively connected with reset springs, one end of the reset spring is fixed to the slide table, and the other end is fixed to the spring fixing seat of the base (1); the two sides of the XY slide rail (51) are symmetrically provided with square guide rail baffles (55), and the guide rail baffles (55) are fixed on the base (1) through bolts.

4. The flash removal apparatus of claim 1, wherein, The hinge of the scraper (53) is provided with an angle scale disc, and the angle is locked through a butterfly bolt, and the graduation accuracy of the scale disc is ±1°.

5. The flash removal apparatus of claim 1, wherein, The bottom of the profiling block (21) is provided with a dovetail groove structure inserted with the profiling base (22), and the profiling base (22) is provided with a matching positioning key.

6. A flash removal apparatus for injection molded shoe soles according to claim 1, wherein The top of the XY slide rail (51) is fixedly connected with a scraper handle (56) through a bolt, the curvature radius of the grip part of the scraper handle (56) is 50-80mm, and the surface is covered with a non-slip silica gel layer.

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