A tobacco cutting machine discharge chain and its production process

Abstract

The present invention provides a tobacco cutting machine chain and its production process, including the following steps: embedding a metal tin bronze alloy base material inside a high-precision mold, and using a 380 °C hot melt composite resin injection molding and cooling process on the outside of the metal tin bronze alloy base material; using 60-mesh white corundum sandblasting pretreatment on the part of the surface of the metal tin bronze alloy base material in contact with the composite plastic; the cutting machine chain includes a snap-on chain and a pin-through chain. This production process uses composite plastic and embeds a metal tin bronze alloy base material inside, providing two assembly methods, namely snap-on and pin-through. Both can reduce the noise generated by the friction between the chains during operation, reduce the running wear between the back of the chain and the driving sprocket, reduce the running wear between the back of the chain and the support plate, extend the service life, and adopt an online non-disassembly cleaning method of gently blowing clean with compressed air during cleaning. Therefore, the cleaning working time and cleaning frequency are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco cutting processing, and specifically to a tobacco cutter discharge chain and its production process. Background Art

[0002] The tobacco leaf itself has a complex composition, containing complex compound components such as tobacco amino acids, tobacco proteins, alkaloids, tar, natural fragrances, and inorganic compounds. Moreover, different formulations of flavoring agents are added during the production of tobacco materials, resulting in a high precipitation rate, high oil content, and complex composition of the materials.

[0003] The tobacco cutter discharge chain is used to transport tobacco leaves. Therefore, the discharge chain will directly contact the surface of the tobacco. After the discharge chain prepared by the existing process comes into contact with the tobacco leaves, the precipitates of the tobacco leaves are extremely likely to adhere and remain on the surface of the discharge chain, and the copper discharge chain cannot be effectively cleaned after the processing of the tobacco leaves. When tobacco processing enterprises produce materials of different batches and formulations, the residual stains on the surface of the copper discharge chain will contaminate and mix the materials, ultimately affecting the designed taste of tobacco products of different grades.

[0004] On the other hand, the wear life between the copper discharge chain manufactured by the conventional process and the support bottom plate (nylon plastic) is 2 years. Therefore, the service life is short, and when the pulling force during operation is too large, a large deformation amount will also occur. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a tobacco cutter discharge chain and its production process to solve the problems raised in the above background art. The present invention can produce a discharge chain for a tobacco cutter that is easy to clean, has strong wear resistance, a long service life, reduces the damage to the equipment support, and reduces the cleaning working time and cleaning frequency.

[0006] To achieve the above purpose, the present invention is realized through the following technical solutions: A production process for a tobacco cutter discharge chain includes the following: embedding a metal tin bronze alloy substrate inside a high-precision mold, and using a 380°C hot melt composite resin injection molding and cooling process for the outside of the metal tin bronze alloy substrate; using 60-mesh white corundum sandblasting pretreatment for the part of the surface of the metal tin bronze alloy substrate in contact with the composite plastic; and this production process includes the processing and production of two assembly forms, namely a snap-fastener type discharge chain and a pin type discharge chain.

[0007] Further, the weight of the metal tin bronze alloy substrate is reduced according to different stress-bearing parts.

[0008] Further, the components of the composite plastic include PEEK polyetheretherketone, POK polyketone, Kevlar toughened, reinforced and flame-retardant fiber, polysilazane, polytetrafluoroethylene, 1-micron bronze wear-resistant powder, graphite, zirconium phosphate, polyimide, and tungsten disulfide.

[0009] Further, the uses and proportion components of each material of the composite plastic are as follows: PEEK polyetheretherketone plays a self-lubricating and flame-retardant effect of 20%, POK polyketone plays a flame-retardant and toughening effect of 10%, Kevlar fiber plays a toughening, strengthening and flame-retardant effect of 10%, polysilazane plays an anti-sticking effect of 10%, polytetrafluoroethylene plays an anti-sticking and wear-resistant effect of 15%, 1-micron bronze wear-resistant powder of 10%, graphite of 10%, zirconium phosphate of 10%, polyimide of 5%, and tungsten disulfide of 5%.

[0010] A cutting machine row chain prepared by the above production process, the cutting machine row chain includes a snap-type row chain and a pin-type row chain.

[0011] Further, the snap-type row chain includes a first composite plastic layer and a first copper alloy skeleton; the pin-type row chain includes a second composite plastic layer and a second copper alloy skeleton.

[0012] Further, a pin hole is provided at the end of the pin-type row chain, and a pin shaft is inserted inside the pin hole, and the pin shaft is made of 304 stainless steel as a whole.

[0013] Further, a self-lubricating coating is applied on the surface of the pin shaft.

[0014] Advantages of the present invention:

[0015] 1. The production process of the tobacco cutting machine row chain uses composite plastic and embeds a metal tin bronze alloy substrate inside, providing two assembly methods of snap-type and pin-type, both of which can reduce the noise of the mutual friction of the row chain during operation, and at the same time reduce the weight, reduce wear, and extend the service life.

[0016] 2. The tobacco cutting machine row chain adopts the method of blowing clean with compressed air online without disassembly, so it is easy to clean and prevent scale formation, reduces the cleaning working time and cleaning frequency, improves the wear resistance, has the effects of anti-sticking, easy cleaning, self-lubrication, wear resistance, large load, chemical corrosion resistance, and non-combustion. The friction coefficient of the material passing through is the same as that of the copper alloy with grooves, which can ensure that the material is smooth and does not slip during transmission, and the existing driving roller can be directly used to cooperate with the row chain of the new material without affecting the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the principle of a production process of a tobacco cutting machine row chain of the present invention;

[0018] Figure 2 is a schematic structural diagram of the buckle-type row chain of the present invention after connection;

[0019] Figure 3 is a schematic end view of a part of the buckle-type row chain of the present invention;

[0020] Figure 4 This is the structural schematic diagram of the invention after the pin - type chain is connected;

[0021] Figure 5 This is the end schematic diagram of the pin - type chain part of the invention;

[0022] In the figure: 1. Buckle - type chain; 2. Pin - type chain; 3. First composite plastic layer; 4. First copper alloy skeleton; 5. Second composite plastic layer; 6. Second copper alloy skeleton; 7. Pin hole; 8. Pin shaft. Specific embodiments

[0023] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a production process for the chain of a tobacco cutter, including the following content: embedding a metal tin bronze alloy base material inside a high - precision mold, and reducing the weight of the base material according to different stress parts. The outer part of the metal tin bronze alloy base material uses a 380 °C hot - melt composite resin injection molding and cooling process. The total size of the chain produced by this process is the same as that of the traditional metal copper chain, so as to avoid affecting the assembly process of the chain of the cutter; the surface of the metal tin bronze alloy base material in contact with the composite plastic is pretreated with 60 - mesh white corundum sandblasting to increase the bonding force between the composite plastic and the base material; and this production process includes the processing and production of two assembly forms, namely the buckle - type chain 1 and the pin - type chain 2.

[0025] In this embodiment, the uses and proportion components of each material of the composite plastic are as follows: PEEK polyetheretherketone plays a self - lubricating and flame - retardant effect of 20%, POK polyketone plays a flame - retardant and toughening effect of 10%, Kevlar fiber plays a toughening, strengthening and flame - retardant effect of 10%, polysilazane plays an anti - sticking effect of 10%, polytetrafluoroethylene plays an anti - sticking and wear - resistant effect of 15%, 1 - micron - sized bronze wear - resistant powder of 10%, graphite of 10%, zirconium phosphate of 10%, polyimide of 5%, tungsten disulfide of 5%.

[0026] The weight ratios of each material of the composite plastic are shown in the following table:

[0027] Name Weight ratio PEEK 12 POK 8 Aramid fiber 12 Polysilazane 10 PTFE 20 Bronze powder 9 Graphite 6 Zirconium phosphate 5 Polyimide 10 Tungsten disulfide 8

[0028] In this embodiment, the single - section size of the copper chain produced by this production process for the chain of the tobacco cutter is: L*B*H: 500*40*30 mm. After testing by an electronic tensile testing machine, the designed longitudinal load - bearing capacity of the single - section copper chain is 9 tons; the transverse tensile force: 10 tons;

[0029] This embodiment also provides a wire cutting machine chain produced by the above production process. The wire cutting machine chain includes a snap-on chain 1 and a pin-through chain 2. The snap-on chain 1 includes a first composite plastic layer 3 and a first copper alloy skeleton 4; the pin-through chain 2 includes a second composite plastic layer 5 and a second copper alloy skeleton 6. A pin hole 7 is formed at the end of the pin-through chain 2, and a pin shaft 8 is inserted into the pin hole 7. The pin shaft 8 is made of 304 stainless steel as a whole. A self-lubricating coating is applied on the surface of the pin shaft 8.

[0030] Compared with the traditional copper chain and the support bottom plate (nylon plastic) with a wear life of 2 years, the wear life between this new chain and the support bottom plate (nylon plastic) is 4 years.

[0031] Compared with the traditional copper alloy chain, the area ratio of the tobacco material sticking to the surface of the chain is 55 - 87%. For this new chain, the area ratio of the sticking material on the surface is 5 - 9%.

[0032] Compared with the traditional copper chain that needs to be cleaned by 3 - 5 people once a month for two days each time, this new chain only needs to be cleaned by 1 person once every three months for half an hour each time.

[0033] Compared with the traditional copper chain that needs to be soaked in a cleaning agent and cleaned by high-temperature ultrasonic waves after disassembly, this new chain mainly uses the method of blowing clean with compressed air online without disassembly. Therefore, it is easy to clean and prevent scale formation, reducing the cleaning working time and cleaning frequency, reducing the running wear between the back of the chain and the driving sprocket, and reducing the running wear between the back of the chain and the support plate. Therefore, the overall wear resistance is improved.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0035] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A production process for the discharge chain of a tobacco cutter, characterized in that, It includes the following processes: embedding a metal tin bronze alloy substrate inside a high-precision mold, and using a 380°C hot melt composite plastic injection molding and cooling process on the outside of the metal tin bronze alloy substrate; using 60-mesh white corundum sandblasting pretreatment on the part of the surface of the metal tin bronze alloy substrate in contact with the composite plastic; and this production process is used to produce the wire cutting machine row chains in two assembly forms, namely the snap-on type and the pin-through type; the weight of the metal tin bronze alloy substrate is reduced according to different stress parts; the composition of the composite plastic includes PEEK polyetheretherketone, POK polyketone, Kevlar toughened, reinforced and flame-retardant fiber, polysilazane, polytetrafluoroethylene, 1-micron bronze wear-resistant powder, graphite, zirconium phosphate, polyimide, and tungsten disulfide.

2. The tobacco cutting machine row chain production process according to claim 1, characterized in that: The weight ratios of the components of the composite plastic are as follows: PEEK polyetheretherketone 12%, POK polyketone 8%, Kevlar toughened, reinforced and flame-retardant fiber 12%, polysilazane 10%, polytetrafluoroethylene 20%, 1-micron bronze wear-resistant powder 9%, graphite 6%, zirconium phosphate 5%, polyimide 10%, and tungsten disulfide 8%.

3. A wire cutting machine discharge chain produced by the production process as described in claim 1, characterized in that: The wire cutting machine row chain includes a snap-on type row chain (1) and a pin-through type row chain (2); the snap-on type row chain (1) includes a first composite plastic layer (3) and a first copper alloy skeleton (4); the pin-through type row chain (2) includes a second composite plastic layer (5) and a second copper alloy skeleton (6), a pin hole (7) is provided at the end of the pin-through type row chain (2), a pin shaft (8) is inserted inside the pin hole (7), and the pin shaft (8) is made of 304 stainless steel as a whole; a self-lubricating coating is applied on the surface of the pin shaft (8).

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