CN217394496U - A tool positioning and clamping structure for a sharpener - Google Patents

Abstract

The utility model discloses a knife positioning and clamping structure of a knife grinder, which comprises a knife grinder workbench positioned below a grinding wheel, wherein the knife grinder workbench is provided with a knife mounting and locking mechanism for fixing a knife on the surface, and the knife grinder workbench is rotationally connected with a workbench supporting frame and is used for adjusting the angle between the knife and the bottom surface of the grinding wheel; when the cutter mounting and locking mechanism is used for mounting a cutter, the length direction of the cutting edge of the cutter is consistent with the reciprocating direction of the grinding wheel on the guide rail of the knife grinder; the top of a tool placing frame in the tool mounting and locking mechanism is of a right-angle structure, two tool mounting stations are arranged, and the distance between a tool and a grinding wheel can be adjusted through an adjusting screw according to the condition of the tool to be ground. The utility model discloses can be accurate, quick confirm the mounted position of cutter and fix its locking, and once can be simultaneously two wait to grind the cutter by the clamping, realize two cutters grinding simultaneously, avoid the emery wheel to rotate the idle running of removal in-process, improve grinding efficiency.

Description

A tool positioning and clamping structure for a sharpener

technical field

The utility model belongs to the technical field of knife sharpening auxiliary equipment in the field of plastic crushing, and particularly relates to a knife sharpening tool positioning and clamping structure.

Background technique

At present, as the country implements the sustainable development strategy and the requirements of environmental protection policies, recycling waste plastics and then shredding, cleaning, and manufacturing recycled plastic particles is the main way to recycle and reuse waste plastics. The specific method is to use crushers and cleaning agents to pre-process waste plastics to meet the requirements of hot-melt granulation; then use special granulation equipment to heat and plasticize broken plastics such as waste polyethylene and polypropylene. - Extrusion molding process, processing to produce recycled granules. Compared with simple landfill and incineration, recycled plastic granules can be reused as raw materials in the plastics industry, realizing the true recycling of resources and making great contributions to resource conservation and environmental protection.

In the current actual production, it is found that the cutter of the crusher wears out quickly, and the cutter is usually replaced in less than a week. That is, the cutter of the crusher needs to be disassembled for re-grinding, and the cutter of the prior art sharpener usually adopts a clamping block or an electromagnet. Since there is no positioning surface, each time the sharpening tool is clamped and fixed, it is necessary to carefully measure the positioning, which leads to prolonged time-consuming of sharpening work. In addition, when the grinding wheel of the sharpening machine moves back and forth along the guide rail, when only one tool is sharpened , part of the stroke is empty consumption, but when more than two tools need to be ground at the same time, there is no special tooling in the existing technology, which leads to double the installation and positioning time, and even due to the inaccurate positioning of the two tools, one of them is not properly ground or Too much grinding is a waste of time and tools.

In view of this, the inventors have designed a tool positioning and clamping structure for a sharpener to solve the above technical problems.

Utility model content

The purpose of the present utility model is to overcome the shortcomings of the above-mentioned prior art, and to provide a tool positioning and clamping structure for a sharpening machine. The tool positioning and clamping structure includes a right-angle positioning surface, which can accurately and quickly determine the installation position of the tool It is clamped, and the tool positioning and clamping structure can clamp two tools to be ground at one time, and adjust the distance and angle between the tool and the bottom surface of the grinding wheel according to the wear condition of the tool, so as to avoid one of them being ground out of place during grinding. The grinding amount is too large, which improves the grinding efficiency and avoids the loss of tools.

The purpose of this utility model is to be solved by the following technical solutions:

A tool positioning and clamping structure for a sharpener, comprising a sharpener worktable located under a grinding wheel, a tool installation and locking mechanism for fixing a tool is installed on the surface of the knife sharpener worktable, and the knife sharpener worktable It is rotatably connected with the support frame of the worktable to adjust the angle between the tool and the bottom surface of the grinding wheel;

Wherein, when the tool installation locking mechanism installs the tool, the length direction of the blade of the tool is consistent with the reciprocating direction of the grinding wheel on the guide rail of the sharpener.

Further, the tool mounting and locking mechanism includes a tool placement rack slidably mounted on the worktable of the knife sharpener, a vertical plate with threaded holes vertically fixed on the worktable of the knife sharpener, and a tool placement rack for connecting the tool placement rack and the vertical plate. an adjusting screw, the screw part of the adjusting screw is threadedly connected with the threaded hole of the vertical plate, and the end of the adjusting screw is rotatably connected with the bearing installed in the tool placement frame, so as to adjust the distance between the tool placement frame and the vertical plate;

Wherein, a plurality of pressing plates for pressing the tools are detachably connected to the tool placement rack.

Further, the tool installation and locking mechanism further includes an L-shaped pressing block for fixing the position of the tool placement rack, and the L-shaped pressing block is detachably connected to the worktable of the sharpening machine.

Further, the top of the tool placement rack is a right-angle structure, and is used for positioning and contacting the bottom surface and the side surface of the tool when placing the tool.

Further, at least two T-shaped chutes or dovetail-shaped chutes are arranged on the working table of the knife sharpener along the moving direction of the adjusting screw, and the bottom of the corresponding tool placement rack is provided with T-shaped chutes or dovetails. T-shaped rib or dovetail that is suitable for the type chute.

Further, the tool placement rack is provided with two workstations for placing tools.

Further, the pressing plate and the tool placement frame and the L-shaped pressing block and the worktable of the sharpening machine are all connected by screws.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model provides a tool positioning and clamping structure for a sharpening machine. A tool mounting and locking mechanism is installed on the worktable of the sharpening machine, wherein the top of the tool placement rack in the tool mounting and locking mechanism is provided with a right-angle positioning mechanism. Surface, combined with the detachable pressing block, can accurately and quickly determine the installation position of the tool and clamp and fix it. Secondly, the distance between the tool and the grinding wheel can be adjusted by adjusting the screw. After the distance is determined, the L-shaped pressing The clamping block locks the position of the tool placement frame, and the tool grinder table and the table support frame are rotatably connected, which can adjust the angle between the tool and the bottom surface of the grinding wheel. That is to say, through the tool positioning and clamping structure, the angle and distance between the tool and the grinding wheel can be adjusted, so as to achieve precise grinding, avoid tool loss and prolong the service life of the tool.

2. The utility model provides a tool positioning and clamping structure for a sharpening machine. The tool placement frame is provided with two tool placement stations according to the distance that the grinding wheel moves along the guide rail, so that two tools can be clamped at one time through this structure. It can realize the simultaneous grinding of two knives, avoid the idle consumption of the grinding wheel during the rotation and movement, and improve the grinding efficiency.

Description of drawings

The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. It is obvious to those skilled in the art that In other words, on the premise of no creative labor, other drawings can also be obtained based on these drawings.

Fig. 1 is the overall schematic diagram of the tool positioning and clamping structure of a knife sharpener of the present invention;

Fig. 2 is the partial enlarged structural schematic diagram of the cutter positioning and clamping structure of the cutter machine in Fig. 1 of the utility model;

FIG. 3 is a schematic structural diagram of the tool installation locking mechanism of the present invention.

Among them: 1 is the grinding wheel; 2 is the tool grinder table; 3 is the tool; 4 is the tool installation locking mechanism; 5 is the worktable support frame; 41 is the tool placement frame; 42 is the vertical plate; It is a pressing plate; 45 is an L-shaped pressing block.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of means consistent with the aspects of the invention recited in the appended claims.

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIGS. 1 to 3 , the present invention provides a tool positioning and clamping structure for a sharpening machine, including a sharpening machine table 2 located below the grinding wheel 1 . The tool installation locking mechanism 4 of the tool 3, wherein, when the tool installation locking mechanism 4 installs the tool 3, the length direction of the blade of the tool 3 is consistent with the direction of the reciprocating movement of the grinding wheel 1 on the guide rail of the tool grinder. 2 is rotatably connected with the worktable support frame 5 for adjusting the angle between the tool 3 and the bottom surface of the grinding wheel 1 .

Specifically, the tool installation and locking mechanism 4 in the embodiment of the present invention includes a tool placement frame 41 slidably installed on the knife grinder table 2 and a vertical plate 42 with threaded holes vertically fixed on the knife grinder table 2. And the adjusting screw 43 connecting the tool placing frame 41 and the vertical plate 42, the screw part of the adjusting screw 43 is threadedly connected with the threaded hole of the vertical plate 42, and the end of the screw part is rotatably connected with the bearing installed in the tool placing frame 41, so that through the positive Counter-rotating the adjusting screw 43 can adjust the distance between the tool placing frame 41 and the vertical plate 42 , wherein the tool placing frame 41 is located on the side close to the grinding wheel 1 , the vertical plate 42 is arranged away from the grinding wheel 1 , and the tool placing frame 41 can be installed on the There are a plurality of pressing plates 44 for pressing the tool 3 in detachable connection. For example, the pressing plates 44 are connected with the tool placing frame 41 through screws. Through the above settings, the distance between the tool 3 on the tool placement frame 41 and the grinding wheel 1 can be adjusted, that is, when the tool 3 is ground, the tool 3 can pass through the tool grinder table 2 and the table support frame according to the wear of the tool 3 The rotating connection of 5 and the adjusting screw 43 adjust the angle and distance of the tool 3 to be ground, so as to avoid excessive or insufficient grinding amount when grinding the tool, which will affect the normal use of the tool.

Preferably, the sliding connection structure between the tool placement frame 41 and the sharpening machine table 2 in the embodiment of the present invention is as follows: at least two T-shaped chutes or dovetails are arranged on the knife sharpening table 2 along the moving direction of the adjusting screw 43 T-shaped chute (not shown in the figure), the bottom of the corresponding tool placement rack 41 is provided with a T-shaped protruding strip or dovetail which is matched with the T-shaped chute or dovetail chute, and the two are clearance fit.

Wherein, the tool installation locking mechanism 4 further includes an L-shaped pressing block 45 for fixing the position of the tool placing frame 41 , and the L-shaped pressing block 45 is detachably connected with the tool grinding machine table 2 . The preferred L-shaped pressing blocks 45 can be provided in multiples according to the length of the tool placing frame 41 , and each L-shaped pressing block 45 can be connected to the table 2 of the sharpening machine through screws, so that when the position of the tool placing frame 41 is determined, , Locked by the L-shaped pressing block 45 to avoid shaking during the grinding process and affect the grinding effect.

Preferably, the top of the tool placement rack 41 in the embodiment of the present invention is a right-angle structure. When the tool placement rack 41 is used to place the cutter 3, the right angle of the top of the tool placement rack 41 is in contact with the bottom surface and the side surface of the cutter 3. In addition, the detachable pressing plate 44 , which can accurately and quickly determine the installation position of the tool and clamp it.

In addition, when the grinding wheel 1 of the sharpener wears the tool, the grinding wheel 1 not only rotates but also reciprocates along the guide rail of the sharpener, and the reciprocating distance far exceeds the length of a single tool 3, so that when the tool is installed When the locking mechanism 4 (tool placement rack 41 ) is only provided with one tool station, a large part of the stroke of the grinding wheel 1 is consumed in the grinding process, resulting in a waste of resources. Therefore, in the present invention, combined with the actual length of the reciprocating movement of the grinding wheel 1, as shown in FIG. 3, two workstations for placing the tool 3 are provided on the tool placing frame 41, so that the tool positioning and clamping structure can be used for one-time clamping. Two knives 3 realize simultaneous grinding of the two knives, avoid idle consumption of the grinding wheel 1 during the rotation and movement, and improve the grinding efficiency.

The above are only specific embodiments of the present invention, so that those skilled in the art can understand or realize the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

It should be understood that the present invention is not limited to what has been described above, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims (7)

1. A knife positioning and clamping structure of a knife sharpener is characterized by comprising a knife sharpener workbench (2) positioned below a grinding wheel (1), wherein a knife installation locking mechanism (4) used for fixing a knife (3) is installed on the surface of the knife sharpener workbench (2), and the knife sharpener workbench (2) is rotatably connected with a workbench supporting frame (5) and used for adjusting the angle between the knife (3) and the bottom surface of the grinding wheel (1);

when the cutter mounting and locking mechanism (4) is used for mounting the cutter (3), the length direction of the cutting edge of the cutter (3) is consistent with the reciprocating direction of the grinding wheel (1) on the guide rail of the knife grinder.

2. The cutter positioning and clamping structure of the knife sharpener according to claim 1, wherein the cutter mounting and locking mechanism (4) comprises a cutter placing frame (41) slidably mounted on the sharpener table (2), a vertical plate (42) vertically and fixedly mounted on the surface of the sharpener table (2) and provided with a threaded hole, and an adjusting screw (43) for connecting the cutter placing frame (41) and the vertical plate (42), wherein the screw part of the adjusting screw (43) is in threaded connection with the threaded hole of the vertical plate (42), and the tail end of the adjusting screw is in rotational connection with a bearing mounted in the cutter placing frame (41) and used for adjusting the distance between the cutter placing frame (41) and the vertical plate (42);

the tool placing rack (41) is detachably connected with a plurality of pressing plates (44) used for pressing tools (3).

3. The tool positioning and clamping structure of the knife sharpener according to claim 2, wherein the tool mounting and locking mechanism (4) further comprises an L-shaped pressing block (45) for fixing the position of the tool placing frame (41), and the L-shaped pressing block (45) is detachably connected with the workbench (2) of the knife sharpener.

4. The structure of claim 2, wherein the top of the tool holder (41) is a right-angled structure for positioning and contacting the bottom and side surfaces of the tool (3) when the tool (3) is placed thereon.

5. The structure of claim 2, wherein the knife positioning and clamping structure of the knife grinder is characterized in that at least two T-shaped sliding grooves or dovetail-shaped sliding grooves are arranged on the workbench (2) of the knife grinder along the moving direction of the adjusting screw (43), and T-shaped convex strips or dovetails matched with the T-shaped sliding grooves or dovetail-shaped sliding grooves are arranged at the bottom of the corresponding knife placing frame (41).

6. The structure of claim 2, wherein the tool holder (41) is provided with two stations for placing the tool (3).

7. The structure of claim 3, wherein the pressing plate (44) is connected to the tool holder (41) and the L-shaped pressing block (45) is connected to the worktable (2) via screws.

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