Automatic knife feeding and grinding equipment

Abstract

The present invention provides an automatic feeding and grinding device for table knives, which belongs to the field of tableware processing equipment, and includes a knife holder, a knife sharpening assembly, a feeding assembly and a clamping assembly. The knife sharpening assembly is an axially symmetrical structure, and the knife sharpening assembly includes a grinding disc. The knife holder is arranged between two symmetrical grinding discs, and the knife holder fixes the handle of the table knife. The other end of the table knife extends to the middle of the two grinding discs, and the grinding disc moves along its axis to clamp and grind the table knife. The feeding assembly is arranged on one side of the knife holder to position a plurality of table knives arranged in an overlapping manner. The clamping assembly includes a feeding clamping piece and a unloading clamping piece. The feeding clamping piece transfers the table knife from the feeding assembly to the knife holder, and the unloading clamping piece transfers the table knife from the home position to the unloading position. The present invention can realize continuous feeding, automatic grinding and automatic unloading of table knives, greatly improves the efficiency of grinding, and has high precision, reduces labor intensity, and saves manpower.

Description

Technical Field

[0001] The invention belongs to the field of tableware processing equipment, relates to the processing of table knives, and relates to automatic feeding and polishing equipment for table knives. Background Art

[0002] In the process of tableware forming, it needs to go through multiple processes such as forming, forging, grinding and polishing. Unlike tableware such as spoons and forks, table knives have certain sharpness requirements, so the blade of the table knife needs to be grinded. At present, the grinding of table knives is mostly done manually after the knives are fixed. The grinding efficiency is low and the labor intensity is high. It requires more experience from the operator and the consistency of the product after grinding is difficult to control.

[0003] Our company previously had one-time clamping grinding equipment, but with the assembly line-style single-piece loading and improved automation level, there is still room for improvement in grinding efficiency, and the previous structure was complex and the cost was relatively high. Summary of the invention

[0004] The problem to be solved by the present invention is to provide an automatic feeding and grinding device for table knives, which can realize continuous feeding, automatic grinding and automatic unloading of table knives, greatly improving the grinding efficiency, and has high precision, reducing labor intensity and saving manpower.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic feeding and grinding device for table knives, comprising a knife holder, a knife sharpening assembly, a feeding assembly and a clamping assembly, wherein the knife sharpening assembly is an axially symmetrical structure, and the knife sharpening assembly comprises a grinding disc, the knife holder is arranged between two symmetrical grinding discs, the knife holder fixes the handle of the table knife, and the other end of the table knife extends to the middle of the two grinding discs, and the grinding disc moves along its axis to clamp and grind the table knife;

[0006] The feeding assembly is arranged on one side of the knife holder to position a plurality of table knives that are arranged overlappingly up and down;

[0007] The clamping assembly includes a loading clamping piece and a unloading clamping piece. The loading clamping piece transfers the table knife from the loading assembly to the knife holder, and the unloading clamping piece transfers the table knife from the knife holder to the unloading position.

[0008] Furthermore, the knife holder, the knife sharpening assembly, the feeding assembly and the clamping assembly are all fixed on the base, the knife holder is arranged in the middle of the upper end of the base, and one side of the knife holder is provided with a support block and a rear pressure block for positioning the table knife, the rear pressure block is L-shaped rotated 90 degrees clockwise, and limits the end and upper part of the handle of the table knife, and the support block is arranged on the side close to the grinding disc, and the support block supports the end of the handle of the table knife close to the blade.

[0009] Furthermore, the knife sharpening assembly also includes a knife sharpening motor, which drives the grinding disc to rotate through a belt and a pulley structure, and the grinding discs on both sides of the knife holder are arranged to rotate in opposite directions.

[0010] Furthermore, the loading clamp and the unloading clamp have the same structure, and the loading clamp includes a horizontal linear module, a vertical linear module and a finger cylinder. The upper end of the finger cylinder is arranged at the lower end of the vertical linear module and moves up and down relative to the tool holder, and the lower end is arranged corresponding to the table knife. The vertical linear module is arranged on the horizontal linear module and moves horizontally relative to the tool holder.

[0011] Furthermore, the loading assembly includes a bottom plate, on which a first retaining groove and a second retaining groove are arranged opposite to each other, the first retaining groove and the second retaining groove form a <> shape to limit the two ends of the table knife in the length direction, and multiple table knives are arranged overlappingly up and down.

[0012] Furthermore, a support seat is provided on the bottom plate, a first adjustment block is provided on the upper end of the support seat, the first retaining groove is provided on the second adjustment block, a first elongated hole is provided on the first adjustment block, and the first elongated hole is used for the first adjustment block to move and adjust in the direction of the second adjustment block;

[0013] A first extension arm is provided at one side of the support seat, a second adjustment block is provided on the first extension arm, a second elongated hole for the second adjustment block to move relative to the first adjustment block is provided on the first extension arm, and the second retaining groove is provided on the first adjustment block.

[0014] Furthermore, a second extension arm is provided on the side of the support seat away from the first extension arm, and a third elongated hole is provided on the second extension arm, and the axis of the third elongated hole in the length direction is arranged parallel to the axial direction of the first elongated hole in the length direction; a first limiting rod is provided on the inner side of the first extension arm, and a second limiting rod is provided on the inner side of the second extension arm, and the first limiting rod and the second limiting rod are both vertically arranged and opposite to each other, so as to limit a plurality of knife handles overlapping each other.

[0015] Furthermore, a first clamping arm is provided at the inner lower end of the first extension arm, the outer side of the first clamping arm is fitted with the inner side of the first extension arm, the upper end of the first clamping arm is hinged to the lower end of the first positioning block, the first positioning block is fixedly locked to the first extension arm, and a second clamping arm is provided at the inner lower end of the second extension arm, the outer side of the second clamping arm is fitted with the inner side of the second extension arm, the upper end of the second clamping arm is hinged to the lower end of the second positioning block, the second positioning block is fixedly locked to the second extension arm, and the first clamping arm and the second clamping arm are correspondingly arranged to support the table knife below.

[0016] Furthermore, the lower ends of the first clamping arm and the second clamping arm are provided with downwardly extending positioning arcs, the first positioning block is provided with a fourth long hole for adjusting its up and down movement relative to the first extension arm, and the second positioning block is provided with a fifth long hole for adjusting its up and down movement relative to the second extension arm.

[0017] Furthermore, a clamping cylinder is provided on the outer side of the second extension arm, and an output shaft of the clamping cylinder passes through the second extension arm and is provided corresponding to the second clamping arm.

[0018] Compared with the prior art, the present invention has the following advantages and positive effects.

[0019] 1. The present invention is provided with a knife sharpening assembly, a feeding assembly and a clamping assembly. The feeding assembly can place a plurality of table knives at the same time to ensure the continuous feeding of the table knives. The clamping assembly includes a feeding clamping piece and a discharging clamping piece, and the two actions can be performed simultaneously, thereby improving the work efficiency. The knife sharpening assembly can realize automatic movement and grinding, thereby greatly improving the grinding efficiency, and the grinding is of high precision, reducing the labor intensity, and saving manpower.

[0020] 2. The clamping assembly of the present application is composed of a horizontal linear module and a vertical realization module, which realizes horizontal and vertical movement. The structure of the linear module can be purchased from the market, has high precision, and a simple structure. The up and down and horizontal movements, combined with the finger cylinder, realize the horizontal and vertical movement of the table knife, meeting the needs of automatic loading and unloading;

[0021] 3. The clamping assembly and the sharpening assembly of the present application are both driven by servo motors, which have high precision and can simplify the control program. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the automatic feeding and grinding device for table knives of the present invention from the front view;

[0024] Figure 2 It is a schematic structural diagram of the automatic feeding and grinding device for table knives of the present invention from a side view;

[0025] Figure 3 The present invention Figure 2 Detailed drawing of Part A;

[0026] Figure 4 The present invention Figure 2 Detail of Part B;

[0027] Figure 5It is a structural schematic diagram of the front view of the feeding assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the feeding assembly of the present invention from the rear;

[0029] Figure 7 It is a schematic diagram of the structure of the feeding assembly of the present invention from a top view;

[0030] Figure 8 The present invention Figure 7 Detail of Part C.

[0031] Reference numerals:

[0032] 1. Base; 2. Tool holder; 21. Rear pressure block; 22. Support block; 3. Sharpening assembly; 31. Sharpening motor; 32. Grinding disc; 5. Clamping assembly; 51. Horizontal linear module; 52. Vertical linear module; 53. Finger cylinder; 6. Feeding assembly; 61. Bottom plate; 62. First retaining groove; 63. Second retaining groove; 64. Support seat; 65. First extension arm; 651. Second long hole; 652. First clamping arm; 653. First positioning block; 66. Second extension arm; 661. Third long hole; 662. Clamping steel; 663. Second clamping arm; 665. Second positioning block; 67. First adjusting block; 671. First long hole; 68. Second adjusting block; 691. First limit rod; 692. Second limit rod. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-Figure 8 As shown, the present invention is an automatic feeding and grinding device for table knives, comprising a knife holder 2, a knife sharpening assembly 3, a feeding assembly 6 and a clamping assembly 5. The knife sharpening assembly 3 is an axially symmetrical structure, and the knife sharpening assembly 3 comprises a grinding disc 32. The knife holder 2 is arranged between two symmetrical grinding discs 32. The knife holder 2 fixes the handle of the table knife. The other end of the table knife extends to the middle of the two grinding discs 32. The grinding disc 32 moves along its axis to clamp and grind the table knife.

[0038] The feeding assembly 6 is arranged on one side of the knife holder 2 to position a plurality of table knives which are arranged overlappingly up and down;

[0039] The clamping assembly 5 includes a loading clamp and a unloading clamp. The loading clamp transfers the table knife from the loading assembly 6 to the knife holder 2, and the unloading clamp transfers the table knife from the knife holder to the unloading position.

[0040] Preferably, the knife holder 2, the sharpening assembly 3, the loading assembly 6 and the clamping assembly 5 are all fixed on the base 1. The knife holder 2 is arranged in the middle of the upper end of the base 1. One side of the knife holder 2 is provided with a support block 22 and a rear pressure block 21 for positioning the table knife. The rear pressure block 21 is L-shaped rotated 90 degrees clockwise to limit the handle end and the upper part of the table knife. The support block 22 is arranged on the side close to the grinding disc 32. The support block 22 supports the end of the table knife handle close to the blade. This fixing method is simple and convenient for loading and unloading.

[0041] Preferably, the knife sharpening assembly 3 also includes a knife sharpening motor 31, which drives the grinding disc 32 to rotate through a belt and pulley structure, and then a motor screw structure is arranged below to realize the axial reverse movement of the grinding disc 32, so as to facilitate the knife to be sharpened close to the table. The grinding discs 32 on both sides of the knife holder 2 are arranged in opposite directions, so as to ensure the reliability of the positioning of the table knife during the sharpening process.

[0042] Preferably, the loading clamp and the unloading clamp have the same structure, the loading clamp includes a horizontal linear module 51, a vertical linear module 52 and a finger cylinder 53, the upper end of the finger cylinder 53 is arranged at the lower end of the vertical linear module 52 and moves up and down relative to the knife holder 2, the lower end corresponds to the table knife setting, the vertical linear module 52 is arranged on the horizontal linear module 51 and moves horizontally relative to the knife holder 2, the up, down, left and right movements of the finger cylinder 53 realize the change and adjustment of the position of the table knife, which is conducive to the setting of automatic loading and unloading.

[0043] Preferably, the loading assembly 6 includes a base plate 61, on which a first retaining groove 62 and a second retaining groove 63 are arranged opposite to each other. The first retaining groove 62 and the second retaining groove 63 form a <> shape to limit the two ends of the table knife in the length direction. Multiple table knives are arranged overlappingly up and down, with a simple structure and low cost.

[0044] Preferably, a support seat 64 is provided on the bottom plate 61, a first adjusting block 67 is provided at the upper end of the support seat 64, a second retaining groove 63 is provided on the first adjusting block 67, a first elongated hole 671 is provided on the first adjusting block 67, and the first elongated hole 671 is used for moving the first adjusting block 67 toward the second adjusting block 68; a first extending arm 65 is provided on one side of the support seat 64, a second adjusting block 68 is provided on the first extending arm 65, a second elongated hole 651 is provided on the first extending arm 65 for the second adjusting block 68 to move relative to the first adjusting block 67, and a first retaining groove 62 is provided on the second adjusting block 68, which is suitable for fixing table knives of different lengths, thereby expanding the scope of application of the present structure, being able to position multiple specifications, and improving the versatility of the equipment.

[0045] Preferably, a second extension arm 66 is provided on the side of the support seat 64 away from the first extension arm 65, and a third elongated hole 661 is provided on the second extension arm 66, and the axis of the third elongated hole 661 in the length direction is arranged parallel to the axis of the first elongated hole 671 in the length direction; a first limiting rod 691 is provided on the inner side of the first extension arm 65, and a second limiting rod 692 is provided on the inner side of the second extension arm 66, the first limiting rod 691 and the second limiting rod 692 are both vertically arranged and opposite to each other, so as to limit the multiple knife handles overlapping each other, and the arrangement of the first limiting rod 691 and the second limiting rod 692 further strengthens the positioning of the multiple knifes and improves the stability.

[0046] Preferably, a first clamping arm 652 is provided at the inner lower end of the first extension arm 65, the outer side of the first clamping arm 652 is fitted with the inner side of the first extension arm 65, the upper end of the first clamping arm 652 is hinged to the lower end of the first positioning block 653, the first positioning block 653 is locked to the first extension arm 65, and a second clamping arm 663 is provided at the inner lower end of the second extension arm 66, the outer side of the second clamping arm 663 is fitted with the inner side of the second extension arm 66, the upper end of the second clamping arm 663 is hinged to the lower end of the second positioning block 665, the second positioning block 665 is locked to the second extension arm 66, the first clamping arm 652 and the second clamping arm 663 are correspondingly arranged to support the table knife from below, and the arrangement of the first clamping arm 652 and the second clamping arm 663 makes the table knife more securely clamped and positioned.

[0047] Preferably, the lower ends of the first clamping arm 652 and the second clamping arm 663 are both provided with a positioning arc extending downward, the first positioning block 653 is provided with a fourth long hole for adjusting its up and down movement relative to the first extension arm 65, and the second positioning block 665 is provided with a fifth long hole for adjusting its up and down movement relative to the second extension arm 66. The provision of the fourth long hole and the fifth long hole facilitates the adjustment of the upper and lower positions of the first clamping arm 652 and the second clamping arm 663, compensates for processing errors, and improves assembly efficiency; more preferably, a clamping cylinder is provided on the outer side of the second extension arm 66, and the output shaft of the clamping cylinder passes through the second extension arm 66 and is correspondingly arranged with the second clamping arm 663, so that the table knife can be intermittently unloaded from the bottom, and then pushed from the bottom by another cylinder, so that the finger cylinder 53 can go to the designated position to pick up materials, one at a time, and there will be no situation of picking up two materials at the same time, and the movement is smoother.

[0048] In actual application, multiple table knives are placed overlappingly between the first stop groove 62 and the second stop groove 63, and the handles of the table knives are limited by the first limiting rod 691 and the second limiting rod 692 to improve the stability of the multiple placements. The first clamping arm 652 and the second clamping arm 663 below clamp and position the table knives, which is convenient for clamping the last table knife. When grinding is required, the finger cylinder 53 moves downward under the drive of the vertical linear module 52, and then moves upward after clamping the table knife, and then It moves horizontally toward the knife holder 2, then descends and places the table knife on the knife holder 2. At this time, the knife sharpening motor 31 starts, driving the grinding disc 32 to move toward the table knife and rotates to sharpen the table knife to complete the sharpening of the edge of the table knife. After the sharpening is completed, the grinding disc 32 moves away from the table knife, and the unloading clamping member clamps the table knife to the unloading position. The action of the unloading clamping member is the same as the action principle of the loading clamping member, and this is repeated. While unloading, loading can be carried out to achieve continuity of action, which greatly improves work efficiency.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Automatic feeding and grinding equipment for table knives, characterized by: It includes a knife holder, a knife sharpening assembly, a feeding assembly and a clamping assembly. The knife sharpening assembly is an axially symmetrical structure. The knife sharpening assembly includes a grinding disc. The knife holder is arranged between two symmetrical grinding discs. The knife holder fixes the handle of the table knife. The other end of the table knife extends to the middle of the two grinding discs. The grinding disc moves along its axis to clamp and sharpen the table knife. The feeding assembly is arranged on one side of the knife holder to position multiple table knives that are overlapped up and down. The clamping assembly includes a feeding clamping piece and a discharging clamping piece. The feeding clamping piece transfers the table knife from the feeding assembly to the knife holder, and the discharging clamping piece transfers the table knife from the knife holder to the discharging position. The feeding assembly comprises a bottom plate, on which a first retaining groove and a second retaining groove are arranged opposite to each other, wherein the first retaining groove and the second retaining groove form a <> shape to limit the two ends of the table knife in the length direction, and a plurality of table knives are arranged overlappingly up and down; A support seat is provided on the bottom plate, a first adjustment block is provided on the upper end of the support seat, the first stop groove is provided on the second adjustment block, a first elongated hole is provided on the first adjustment block, and the first elongated hole is used for the first adjustment block to move and adjust in the direction of the second adjustment block; a first extension arm is provided on one side of the support seat, a second adjustment block is provided on the first extension arm, a second elongated hole is provided on the first extension arm for the second adjustment block to move relative to the first adjustment block, and the second stop groove is provided on the first adjustment block; A second extension arm is provided on a side of the support seat away from the first extension arm, a third elongated hole is provided on the second extension arm, and an axis of the third elongated hole in a length direction is arranged parallel to an axis of the first elongated hole in a length direction; a first limiting rod is provided on an inner side of the first extension arm, and a second limiting rod is provided on an inner side of the second extension arm, the first limiting rod and the second limiting rod are both arranged vertically and opposite to each other, so as to limit a plurality of knife handles that are arranged overlappingly up and down; A first clamping arm is provided at the inner lower end of the first extension arm, and the outer side of the first clamping arm is fitted with the inner side of the first extension arm. The upper end of the first clamping arm is hinged to the lower end of the first positioning block, and the first positioning block is fixedly locked to the first extension arm. A second clamping arm is provided at the inner lower end of the second extension arm, and the outer side of the second clamping arm is fitted with the inner side of the second extension arm. The upper end of the second clamping arm is hinged to the lower end of the second positioning block, and the second positioning block is fixedly locked to the second extension arm. The first clamping arm and the second clamping arm are correspondingly arranged to support the table knife below.

2. The automatic feeding and grinding equipment for table knives according to claim 1 is characterized by: The knife holder, knife sharpening assembly, feeding assembly and clamping assembly are all fixed on the base, the knife holder is arranged in the middle of the upper end of the base, one side of the knife holder is provided with a support block and a rear pressure block for positioning the table knife, the rear pressure block is L-shaped rotated 90 degrees clockwise, and limits the handle end and the upper part of the table knife, the support block is arranged on the side close to the grinding disc, and the support block supports the end of the table knife handle close to the blade.

3. The automatic feeding and grinding equipment for table knives according to claim 1 is characterized by: The knife sharpening assembly also includes a knife sharpening motor, which drives the grinding disc to rotate through a belt and a pulley structure, and the grinding discs on both sides of the knife holder are arranged in opposite directions.

4. The automatic feeding and grinding equipment for table knives according to claim 1, characterized in that: The loading clamp and the unloading clamp have the same structure. The loading clamp includes a horizontal linear module, a vertical linear module and a finger cylinder. The upper end of the finger cylinder is arranged at the lower end of the vertical linear module and moves up and down relative to the tool holder, and the lower end is arranged corresponding to the table knife. The vertical linear module is arranged on the horizontal linear module and moves horizontally relative to the tool holder.

5. The automatic feeding and grinding equipment for table knives according to claim 1 is characterized by: The lower ends of the first clamping arm and the second clamping arm are both provided with downwardly extending positioning arcs, the first positioning block is provided with a fourth long hole for adjusting its up and down movement relative to the first extension arm, and the second positioning block is provided with a fifth long hole for adjusting its up and down movement relative to the second extension arm.

6. The automatic knife feeding and grinding device according to claim 1, characterized in that: A clamping cylinder is disposed on the outer side of the second extension arm, and an output shaft of the clamping cylinder passes through the second extension arm and is disposed corresponding to the second clamping arm.

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