A knife guard disc for slicer and processing technology

Abstract

The present invention discloses a cutter disc for a slicer, comprising a cutter disc body made of a profile, with a mounting body connected to the back of the cutter disc body via reverse threads, or a boss structure provided on the back of the cutter disc body and connected to the mounting body via reverse threads. The cutter disc made of the profile ensures the density of the internal structure and surface gloss of the cutter disc, while also effectively reducing the cost of the cutter disc and facilitating cleaning and maintenance. This eliminates the problems of difficult post-processing and cleaning associated with existing gravity casting processes, thereby improving the competitiveness of slicer products. A processing technique for the cutter disc is also disclosed.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a knife guard disc for a slicer made of profiles and a processing technology thereof. Background Art

[0002] A food slicer is a machine for slicing food into thin slices. The slicer described in this application is suitable for the food industry, particularly meat processing. It boasts advantages such as ease of operation, high efficiency, low power consumption, easy cleaning and maintenance, safety and hygiene, and excellent meat-cutting performance. It is an indispensable meat processing product for hotels, restaurants, canteens, meat processing plants, and other establishments. Currently, all meat slicers on the market typically consist of a body, a cutter unit, and a carriage unit. The cutter unit is located within the body and comprises a blade, a cutter guard, and a drive shaft. The carriage unit is mounted on the body relative to the cutter unit. The cutter guard is a key component of the slicer. Existing cutter guards are mostly gravity-cast, resulting in a relatively thick cutter guard. They also have a dark (dull) surface that gives them a "stained" appearance. This results in low production efficiency and low mold and blank costs. Therefore, the competitiveness of slicer cutter guards needs to be further improved. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the prior art. Therefore, a processing technology for making a cutter disc for a slicer using profiles is proposed. The cutter disc made of profiles can ensure the density of the internal structure of the cutter disc, high surface gloss and low cost, and many other advantages.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A blade guard for a slicer includes a blade body made of a profile, with a mounting body connected to the back of the blade body via reverse threads, or a boss structure provided on the back of the blade body and connected to the mounting body via reverse threads. The blade guard made of the profile ensures a dense internal structure and high surface gloss. It also effectively reduces the cost of the blade guard and is easy to clean and maintain, eliminating the problems of gravity casting that lead to difficult post-production maintenance and cleaning, thereby improving the competitiveness of slicer products.

[0006] A processing technology for a knife guard disc for a slicer, the processing steps are as follows:

[0007] A. Banding situation:

[0008] A1: Profile processing: Profile plates with ribs on the back and multiple strip-shaped curved areas on the front are formed by die pressing;

[0009] A2: Blanks are formed by stamping: The profile sheet is formed into a disc blank using a press and a stamping die;

[0010] A3: Surface processing: a reverse thread is machined at the center of the rib, the front edge slope surface of the disc blank is processed by a machining fixture, the back rib is processed into a boss of designed thickness, the back edge slope surface is processed, and finally the mounting body is connected to the reverse thread;

[0011] B. Without tendons:

[0012] B1: Profile processing: Use molds to pressurize and form profile plates with multiple curved strips on the front and in accordance with the designed thickness;

[0013] B2: Punching to obtain blank: The profile plate is formed into a disc blank using a press and a punching die;

[0014] B3: Surface processing: a reverse thread is processed at the center of the disc blank, and the slope surface of the front edge and the slope surface of the back edge of the disc blank are processed by a machining fixture, and finally the mounting body is connected to the reverse thread.

[0015] The focus of this application is to manufacture the cutter disc by using two structural profiles. The two profile structures are respectively with ribs and without ribs. The ribbed structure is designed with only ribs at the installation body installed on the original structure. In subsequent machining, only the excess ribs need to be removed. The mass production cost of the profile is low and easy to process and shape. At the same time, it can effectively improve the surface strength, which is beneficial for the maintenance and cleaning of the equipment in the later stage. The other is the most cost-effective solution. It uses plate-shaped profiles and directly processes the back and front outer edges of the plate-shaped profiles. The production cost is further compressed. In addition, it only needs to process the reverse thread and the installation body to realize the processing of the cutter disc. At the same time, compared with the previous gravity casting cutter disc, it can effectively improve the surface strength, which is beneficial for the maintenance and cleaning of the equipment in the later stage. The cost will also be greatly compressed, thereby improving the competitiveness of the product in the industry.

[0016] Another innovation is that the back of the cutter guard is designed with reverse thread. The reverse thread structure design can ensure the stability of the disc and the reliability of dimensional accuracy during machining of the cutter guard, and it also has the effect of connecting and matching with the bracket unit in the later stage.

[0017] Based on the above solution, the following improvements are made: the machining fixture includes a turning disc and a mounting disc, the mounting disc is provided with an area adapted to the arc-shaped strip area on the front of the tool guard disc, the mounting disc and the turning disc are magnetically adsorbed, and the turning disc is provided with a connecting head adapted to the reverse thread.

[0018] Based on the above scheme, the following improvements are made. The machining fixture also includes a turning and milling disk. The turning and milling disk and the mounting disk are installed through a connecting body. The connecting body includes an L-shaped crimping body inserted into the periphery of the turning disk. The free end of the L-shaped crimping body is provided with an elastic locating pin, and the back of the mounting disk is provided with a locating groove adapted to the elastic locating pin.

[0019] Another innovation of this application is that a machining fixture for processing the front and back sides of the tool guard is composed of a turning disc, a mounting disc and a milling disc. The disc blank of the tool guard has special characteristics: the workpiece is thin, rotating, and the outer edge needs to be further sloped. The turning disc and the disc blank are connected by reverse threads to ensure the precise processing of the slope surface of the front outer edge, as well as the stability of the process and the reliability of dimensional accuracy. When processing the back side, it is divided into two types: with ribs and without ribs. The specific plan is as follows.

[0020] The specific steps for surface processing of rib profiles are as follows:

[0021] H1: Connect the disc blank to the turning disc through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc. Rough turning and fine turning are performed on the outer edge of the front of the disc blank to form a slope surface.

[0022] H2: Remove the disc blank from the horizontal lathe and install it on the spindle chuck of the vertical lathe via the mounting plate. Rough turning and finish turning are performed on the ribs on the back of the disc blank in sequence. The rough surface of the slope is machined at the end of the rough turning process, and the final slope surface is machined at the same time during the finish turning process.

[0023] H3: Install the turning and milling disc by removing the turning disc, and install it as a whole with the mounting disc through the L-shaped press-fit body under the action of the elastic positioning pin and the positioning groove adaptation, and turn or mill out the boss of the designed thickness size.

[0024] Since the back of the profile is made of ribs, it is necessary to effectively remove the part of the ribs other than the installation body. The non-ribbed profile will further reduce the production and material costs based on the above solution. The specific steps for the surface processing of the non-ribbed profile are as follows:

[0025] H1: Connect the disc blank to the turning disc through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc. Rough turning and fine turning are performed on the outer edge of the front of the disc blank to form a slope surface.

[0026] H2: Remove the disc blank from the horizontal lathe and install it on the spindle chuck of the vertical lathe via the mounting plate. Rough turning and finish turning are performed on the outer edge of the back of the disc blank in sequence to produce the final slope surface.

[0027] Based on the above solution, the following improvement is made: the composition of the profile plate includes 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities;

[0028] Among them, 0.025≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.041.

[0029] Based on the above solution, the following improvement is made: the composition of the profile plate includes 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities;

[0030] Among them, 0.025≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.035.

[0031] Based on the above solution, the following improvement is made: the composition of the profile plate includes 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities;

[0032] Among them, 0.030≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.041.

[0033] Based on the above solution, the following improvement is made: the composition of the profile plate includes 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities;

[0034] Among them, 0.029≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.035.

[0035] Another innovation of this application is that the applicant has improved the profile formula according to the application scenarios and working conditions of the cutter disc, rationalized the proportion of Zn, Mg, Cu and Si in the aluminum product, and achieved the cutter disc with excellent antibacterial properties, machinability and surface cleanliness. By adding the corresponding amount of chromium, (CrFe)Al7 and (CrMn)Al 12 Intermetallic compounds such as Cu and Cu inhibit the nucleation and growth of recrystallization, strengthening the alloy to a certain extent, improving its resistance and reducing its susceptibility to stress corrosion cracking. Cu interacts strongly with the Mg and Si in the alloy, forming atomic pairs and resulting in the formation of complex clusters (Mg / Si / Cu). These complex clusters serve as nucleation sites for β-hardening, increasing the number of β-hardening precipitations in the alloy and improving the aging effect. As a key alloying element in Al alloy products, Cu increases the alloy's strength and hardness, as well as its heat resistance. In Al-Mg-Si alloys, CuAl₂, CuMgAl₂, and Al₂Cu₂Mg₈Si₇ phases also exist. During aging, these precipitates disperse in the matrix, pinning dislocations and blocking grain boundaries, thereby strengthening the alloy. The CuAl₂ secondary phase acts as a heterogeneous nucleus, providing nucleation sites, increasing the nucleation rate and refining the alloy grains. Cu atoms will also segregate at the Q / α(Al) interface, resulting in the segregation of the Al-Mg-Si alloy grain boundary precipitate phase to be mainly Mg2Si precipitate phase, which will hydrolyze under certain conditions to generate Mg(OH)2 and SiO2H20, which also plays a certain protective role for the alloy. However, there is a large potential difference between the compound formed by Cu and the matrix, so it will form a galvanic cell with the matrix, accelerating the dissolution of the solute-poor zone in the alloy, leading to the aggravation of the intergranular corrosion of the alloy. The segregation of Cu atoms at the Q / α(Al) interface also aggravates the intergranular corrosion of the alloy. Therefore, an appropriate amount of Zn is added to the Al alloy products to precipitate T-Mg at the grain boundary. 32 (AlZn) 49 By replacing β-Al3Mg2, the gap and potential difference between the matrix and grain boundary phases are reduced, causing Cu atoms to deviate from the interface, thereby improving the alloy's resistance to intergranular corrosion. At the same time, the appropriate addition of Zn improves the alloy's formability and enhances its age-hardening effect. Zn also has an antibacterial effect in aluminum alloys, particularly in kitchenware. When Zn comes into contact with bacteria, it inhibits their absorption of glucose, causing the thiol groups in the bacterial enzymes to oxidize. Zn+ replaces the Mg required to activate enzyme activity, causing the bacteria to lose their ability to absorb glucose and die. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front view schematic diagram of the overall structure of the present invention;

[0037] Figure 2This is a schematic diagram of the overall structure of the present invention when no mounting body is installed on the back side;

[0038] Figure 3 This is a schematic diagram of the overall structure of the present invention when the mounting body is installed on the back side;

[0039] Figure 4 This is a schematic diagram of the overall structure of the present invention when the mounting body is installed on the back side;

[0040] Figure 5 This is a schematic diagram of the overall structure of the present invention when no mounting body is installed on the back side;

[0041] Figure 6 Schematic diagram of the overall structure of the ribbed profile of the present invention;

[0042] Figure 7 This is a schematic diagram of the overall structure of the disc blank of the present invention;

[0043] Figure 8 This is a schematic diagram of the overall structure of the present invention when a turning disc is installed on the back side;

[0044] Figure 9 It is a schematic diagram of the overall structure of the turning disc of the present invention;

[0045] Figure 10 This is a schematic diagram of the overall structure of the non-ribbed profile of the present invention;

[0046] Figure 11 This is a front view of the overall structure of the mounting plate of the present invention;

[0047] Figure 12 It is a schematic diagram of the overall structure of the mounting plate and the turning and milling plate assembly of the present invention;

[0048] Figure 13 for Figure 11 Cross-section of the overall structure of the middle combination.

[0049] In the figure: 1. Cutter body; 2. Boss structure; 3. Mounting body; 4. Ribs; 5. Strip-shaped arc area; 6. Turning disc; 7. Mounting disc; 8. Connector; 9. Milling disc; 10. Elastic locating pin; 11. L-shaped crimping body; 12. Positioning groove. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0052] Example 1

[0053] like Figures 1 to 5 As shown, a blade guard for a slicer includes a blade body 1 made of a profile. The back of the blade body 1 is connected to a mounting body 3 via reverse threads, or a boss structure 2 is provided on the back of the blade body 1 and connected to the mounting body 3 via reverse threads. The blade guard made of profile ensures the density of the internal structure and surface gloss of the blade guard. It also effectively reduces the cost of the blade guard for slicers and is easy to clean and maintain. This eliminates the problems of gravity casting that lead to difficult post-production maintenance and cleaning, thereby improving the competitiveness of slicer products.

[0054] Example 2

[0055] like Figure 6 and Figure 7 As shown, the case of reinforced profiles:

[0056] like Figure 6 As shown, a processing technology for a knife guard disc for a slicer, the processing steps are as follows:

[0057] A1: Profile processing: A profile plate with ribs 4 on the back and multiple strip-shaped arc areas 5 on the front is formed by die pressing;

[0058] A2: Blanks are formed by stamping: The profile sheet is formed into a disc blank using a press and a stamping die;

[0059] A3: Surface processing: a reverse thread is machined at the center of the rib 4. The front edge slope of the disc blank is processed using a machining fixture. The back rib 4 is processed into a boss of designed thickness. The back edge slope is processed. Finally, the mounting body 3 is connected to the reverse thread.

[0060] Example 3

[0061] Non-reinforced profiles:

[0062] like Figure 10 As shown, a processing technology for a knife guard disc for a slicer, the processing steps are as follows:

[0063] B1: Profile processing: A profile plate having multiple strip-shaped arc areas 5 on the front and meeting the designed thickness is formed by die pressing;

[0064] B2: Punching to obtain blank: The profile plate is formed into a disc blank using a press and a punching die;

[0065] B3: Surface processing: a reverse thread is processed at the center of the disc blank, and the slope surface of the front edge and the slope surface of the back edge of the disc blank are processed by a machining fixture, and finally the mounting body 3 is connected to the reverse thread.

[0066] The focus of this application is to manufacture the cutter disc by using two structural profiles. The two profile structures are respectively with ribs 4 and without ribs 4. The structure with ribs 4 is designed by only using ribs 4 at the installation body 3 installed on the original structure. In subsequent machining, only the excess part of the ribs 4 needs to be removed. The mass production cost of the profile is low and easy to process and shape. At the same time, it can effectively improve the surface strength, which is beneficial for the maintenance and cleaning of the equipment in the later stage. The other is the most cost-effective solution. It uses plate-shaped profiles and directly processes the back and front outer edges of the plate-shaped profiles. The production cost is further compressed. In addition, it only needs to process the reverse thread and the installation body 3 to realize the processing of the cutter disc. At the same time, compared with the previous gravity casting cutter disc, it can effectively improve the surface strength, which is beneficial for the maintenance and cleaning of the equipment in the later stage. The cost will also be greatly compressed, thereby improving the competitiveness of the product in the industry.

[0067] Another innovation is that the back of the cutter guard is designed with reverse thread. The reverse thread structure design can ensure the stability of the disc and the reliability of dimensional accuracy during machining of the cutter guard, and it also has the effect of connecting and matching with the bracket unit in the later stage.

[0068] Example 4

[0069] Non-reinforced profiles:

[0070] like Figure 8 、 Figure 9 、 Figure 11 As shown, the machining fixture includes a turning disk 6 and a mounting disk 7. The mounting disk 7 is provided with an area adapted to the front arc-shaped strip area 5 of the tool guard disk. The mounting disk 7 and the turning disk 6 are adsorbed by magnetic force, and the turning disk 6 is provided with a connecting head 8 adapted to the reverse thread.

[0071] Example 5

[0072] Reinforced profiles:

[0073] like Figure 8 、 9As shown in 11, 12 and 13, the machining fixture also includes a turning and milling disk 9. The turning and milling disk 9 and the mounting disk 7 are installed through a connecting body. The connecting body includes an L-shaped crimping body 11 inserted into the periphery of the turning disk 6. The free end of the L-shaped crimping body 11 is provided with an elastic locating pin 10, and the back of the mounting disk 7 is provided with a locating groove 12 adapted to the elastic locating pin 10.

[0074] Another innovation of the present application is that a machining fixture for processing the front and back sides of the tool guard is formed by a turning disc 6, a mounting disc 7 and a turning and milling disc 9. The disc blank of the tool guard has the particularity: the workpiece is thin, rotating, and the outer edge needs to be further sloped. The turning disc 6 and the disc blank are connected by reverse threads to ensure the precise processing of the slope surface of the front outer edge, the stability of the process, and the reliability of the dimensional accuracy. When processing the back side, it is divided into two types with ribs 4 and without ribs 4. The specific plan is as follows.

[0075] Example 6

[0076] like Figure 8 、 9 As shown in Figures 11, 12, and 13, the specific steps for processing the surface layer of the rib 4 profile are as follows:

[0077] H1: Connect the disc blank to the turning disc 6 through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc 6. Rough turning and fine turning are performed on the outer edge of the front side of the disc blank to form a slope surface;

[0078] H2: The disc blank is removed from the horizontal lathe and mounted on the spindle chuck of the vertical lathe via the mounting plate 7. The ribs 4 on the back of the disc blank are subjected to rough turning and finish turning in sequence. The rough turning process results in a sloped rough surface, and the finish turning process results in a final sloped surface.

[0079] H3: Install the turning and milling disc 9 by removing the turning disc 6, and install it as a whole with the mounting disc 7 through the L-shaped crimping body 11 under the action of the elastic positioning pin 10 and the positioning groove 12, and turn or mill a boss of the designed thickness size.

[0080] Example 7

[0081] like Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 As shown, for non-reinforced profiles:

[0082] Since the back of the profile uses ribs 4, it is necessary to effectively remove the portion of the ribs 4 other than that used to install the mounting body 3. The profile without ribs 4 will further reduce production and material costs based on the above solution. The specific steps for processing the surface layer of the profile without ribs 4 are as follows:

[0083] H1: Connect the disc blank to the turning disc 6 through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc 6. Rough turning and fine turning are performed on the outer edge of the front side of the disc blank to form a slope surface;

[0084] H2: The disc blank is removed from the horizontal lathe and mounted on the spindle chuck of the vertical lathe via the mounting plate 7. The outer edge of the back of the disc blank is subjected to rough turning and fine turning in sequence to produce the final slope surface.

[0085] Example 8

[0086] Based on the above embodiment, the following improvements are made: the composition of the profile plate includes 0.9 parts of Si, 0.42 parts of Fe, 0.7 parts of Cu, 0.12 parts of Mn, 1.8 parts of Mg, 1.1 parts of Zn, 0.08 parts of Cr, 0.1 parts of Ti, and the balance is Al and unavoidable impurities;

[0087] Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)=0.0299, and the value is between 0.025 and 0.035.

[0088] Example 9

[0089] Based on the above embodiment, the following improvements are made: the composition of the profile plate includes 0.6 parts of Si, 0.42 parts of Fe, 0.7 parts of Cu, 0.12 parts of Mn, 1.9 parts of Mg, 1.5 parts of Zn, 0.08 parts of Cr, 0.1 parts of Ti, and the balance is Al and unavoidable impurities;

[0090] Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)=0.0347, which is a value between 0.030 and 0.041.

[0091] Example 10

[0092] Based on the above embodiment, the following improvements are made: the composition of the profile plate includes 0.5 parts of Si, 0.42 parts of Fe, 0.9 parts of Cu, 0.12 parts of Mn, 2.1 parts of Mg, 1.8 parts of Zn, 0.08 parts of Cr, 0.1 parts of Ti, and the balance is Al and unavoidable impurities;

[0093] Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)=0.0396, and the value is between 0.029 and 0.035.

[0094] Comparative Example 1: The profile plate is made of 6061 aluminum alloy or 6063 aluminum alloy.

[0095] The performance parameter comparison table is as follows:

[0096] category tensile strength Antibacterial rate (%) or antibacterial performance value Antibacterial durability Example 8 171MPa ≥99.97 or ≥2.0 ≥95 or ≥1.5 Example 9 173MPa ≥99.98 or ≥2.1 ≥96 or ≥1.6 Example 10 176MPa ≥99.99 or ≥2.2 ≥96 or ≥1.6 Comparative Example 1 124MPa ≥95.57 or ≥1.8 ≥90 or ≥1.0

[0097] Another innovation of this application is that the applicant has improved the profile formula according to the application scenarios and working conditions of the cutter disc, rationalized the proportion of Zn, Mg, Cu and Si in the aluminum product, and achieved the cutter disc with excellent antibacterial properties, machinability and surface cleanliness. By adding the corresponding amount of chromium, (CrFe)Al7 and (CrMn)Al 12 Intermetallic compounds such as Cu and Cu inhibit the nucleation and growth of recrystallization, strengthening the alloy to a certain extent, improving its resistance and reducing its susceptibility to stress corrosion cracking. Cu interacts strongly with the Mg and Si in the alloy, forming atomic pairs and resulting in the formation of complex clusters (Mg / Si / Cu). These complex clusters serve as nucleation sites for β-hardening, increasing the number of β-hardening precipitations in the alloy and improving the aging effect. As a key alloying element in Al alloy products, Cu increases the alloy's strength and hardness, as well as its heat resistance. In Al-Mg-Si alloys, CuAl₂, CuMgAl₂, and Al₂Cu₂Mg₈Si₇ phases also exist. During aging, these precipitates disperse in the matrix, pinning dislocations and blocking grain boundaries, thereby strengthening the alloy. The CuAl₂ secondary phase acts as a heterogeneous nucleus, providing nucleation sites, increasing the nucleation rate and refining the alloy grains. Cu atoms will also segregate at the Q / α(Al) interface, resulting in the segregation of the Al-Mg-Si alloy grain boundary precipitate phase to be mainly Mg2Si precipitate phase, which will hydrolyze under certain conditions to generate Mg(OH)2 and SiO2H2O, which also plays a certain protective role for the alloy. However, there is a large potential difference between the compound formed by Cu and the matrix, so it will form a galvanic cell with the matrix, accelerating the dissolution of the solute-poor zone in the alloy, leading to the aggravation of the intergranular corrosion of the alloy. The segregation of Cu atoms at the Q / α(Al) interface also aggravates the intergranular corrosion of the alloy. Therefore, an appropriate amount of Zn is added to the Al alloy products to precipitate T-Mg at the grain boundary. 32 (AlZn) 49 By replacing β-Al3Mg2, the potential difference between the matrix and grain boundary phases is reduced, and Cu atoms are deflected away from the interface, thereby improving the alloy's resistance to intergranular corrosion and overcoming the negative effects of the introduction of Cu into the alloy. At the same time, the appropriate addition of Zn improves the alloy's formability and enhances its age-hardening effect. Zn also has an antibacterial effect in aluminum alloys, particularly in kitchenware. When Zn comes into contact with bacteria, it inhibits their absorption of glucose, causing the oxidation of the thiol groups in the bacterial enzymes. Zn+ replaces the Mg required to activate the enzyme activity, causing the bacteria to lose their ability to absorb glucose and die.

[0098] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A processing technology for a knife guard disc for a slicer, characterized in that: The processing steps are as follows: A. Banding situation: A1: Profile processing: Profile plates with ribs on the back and multiple strip-shaped curved areas on the front are formed by die pressing; A2: Blanks are formed by stamping: The profile sheet is formed into a disc blank using a press and a stamping die; A3: Surface processing: a reverse thread is machined at the center of the rib, the front edge slope surface of the disc blank is processed by a machining fixture, the back rib is processed into a boss of designed thickness, the back edge slope surface is processed, and finally the mounting body is connected to the reverse thread; B. Without tendons: B1: Profile processing: Use molds to pressurize and form profile plates with multiple curved strips on the front and in accordance with the designed thickness; B2: Punching to obtain blank: The profile plate is formed into a disc blank using a press and a punching die; B3: Surface processing: a reverse thread is processed at the center of the disc blank, and the slope surface of the front edge and the slope surface of the back edge of the disc blank are processed by a machining fixture, and finally the mounting body is connected to the reverse thread.

2. The processing technology of the knife guard disc for a slicer according to claim 1, characterized in that: The machining fixture includes a turning disk and a mounting disk. The mounting disk is provided with an area adapted to the arc-shaped belt area on the front of the tool guard disk. The mounting disk and the turning disk are adsorbed by magnetic force. The turning disk is provided with a connector adapted to the reverse thread.

3. The processing technology of the knife guard disc for a slicer according to claim 2, characterized in that: The machining fixture also includes a turning and milling disk, and the turning and milling disk and the mounting disk are installed through a connecting body. The connecting body includes an L-shaped crimping body inserted into the periphery of the turning disk. The free end of the L-shaped crimping body is provided with an elastic locating pin, and the back of the mounting disk is provided with a locating groove adapted to the elastic locating pin.

4. The processing technology of the knife guard disc for a slicer according to claim 3, characterized in that: The specific steps of surface layer processing are as follows: H1: Connect the disc blank to the turning disc through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc. Rough turning and fine turning are performed on the outer edge of the front of the disc blank to form a slope surface. H2: Remove the disc blank from the horizontal lathe and install it on the spindle chuck of the vertical lathe via the mounting plate. Rough turning and finish turning are performed on the ribs on the back of the disc blank in sequence. The rough surface of the slope is machined at the end of the rough turning process, and the final slope surface is machined at the same time during the finish turning process. H3: Install the turning and milling disc by removing the turning disc, and install it as a whole with the mounting disc through the L-shaped press-fit body under the action of the elastic positioning pin and the positioning groove adaptation, and turn or mill out the boss of the designed thickness size.

5. The processing technology of the knife guard disc for a slicer according to claim 3, characterized in that: The specific steps of surface layer processing are as follows: H1: Connect the disc blank to the turning disc through the reverse thread, and install it on the spindle chuck of the horizontal lathe through the turning disc. Rough turning and fine turning are performed on the outer edge of the front of the disc blank to form a slope surface. H2: Remove the disc blank from the horizontal lathe and install it on the spindle chuck of the vertical lathe via the mounting plate. Rough turning and fine turning are performed on the outer edge of the back of the disc blank in sequence to produce the final slope surface.

6. The processing technology of the blade guard for a slicer according to claim 1, characterized in that: The profile plate comprises 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities; Among them, 0.025≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.

041.

7. The processing technology of the blade guard for a slicer according to claim 6, characterized in that: The profile plate comprises 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities; Among them, 0.025≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.

035.

8. The processing technology of the blade guard for a slicer according to claim 6, characterized in that: The profile plate comprises 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities; Among them, 0.030≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.

041.

9. The processing technology of the blade guard for a slicer according to claim 6, characterized in that: The profile plate comprises 0.2-0.9 parts of Si, 0.35-0.7 parts of Fe, 0.5-1.0 parts of Cu, 0.1-0.15 parts of Mn, 1.7-2.4 parts of Mg, 1.0-3.0 parts of Zn, 0.04-0.35 parts of Cr, 0.1-0.15 parts of Ti, and the balance is Al and unavoidable impurities; Among them, 0.029≤Mg / (Zn+Al+Cu)+Zn / (Al+Mg+Si)≤0.035.

Images