Marble line cpe template preparation equipment and process thereof

Abstract

This invention discloses a marble-patterned CPE cutting board manufacturing equipment and process, including an injection molding mechanism. The discharge end of the injection molding mechanism is equipped with an automatic discharge mechanism that collects the injection-molded cutting boards discharged from the injection molding mechanism. The automatic discharge mechanism includes an injection molding machine body with a barrel installed on it. The barrel conveys and melts flow pattern masterbatch and base resin. The discharge end of the barrel is connected to a first molding die, and a second molding die is provided on one side of the first molding die for cooperation with it. After melting, the molten material forms the cutting board inside the first and second molding dies. This invention has the advantage of high efficiency, solving the problems of low efficiency, increased workload, and higher processing costs in existing marble-patterned CPE cutting board manufacturing processes, as well as the tendency for unstable processes and inconsistent performance between different batches of cutting boards.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting boards, in particular to a CPE cutting board with marble lines and a preparation device and process thereof. BACKGROUND

[0002] Cutting boards belong to a kind of kitchen supplies, including wood, metal or plastic materials, among which plastic cutting boards refer to anvil boards made of high molecular compounds as raw materials, usually referring to polyethylene or polypropylene material cutting boards, CPE is the abbreviation of chlorinated polyethylene, which is a special plastic material, CPE is the product of PE modified by chlorination, which has the properties of rubber cold resistance and plastic heat resistance, and also has the properties of wear resistance, corrosion resistance, oil resistance and aging resistance, CPE is often used as part of a composite material to make cutting boards, compared with pure plastic cutting boards, CPE composite cutting boards are usually more solid and have stronger impact resistance, and are not easy to crack. CPE cutting boards with marble lines usually refer to cutting boards with marble texture on the surface made of CPE material or CPE modification technology, which are made by fusing high melting point flow particle with color and base material through injection molding machine and forming mold. Because the melt viscosity or melting state of the flow particle and the base material is different, their flow speed and path in the mold cavity will be different. This flow rate difference causes the pigment to be unevenly dispersed in the base material, but in the form of irregular strips, bands or vortexes. Finally, after the product is cooled and shaped, a natural, smooth and unique marble texture effect is formed, and the texture position and form of each mold product will be different. The existing CPE cutting board with marble lines has low efficiency in the preparation process, increases the workload of the workers, and causes the processing cost of the cutting board to rise, and is prone to unstable process, resulting in different performance of the cutting boards of different batches. SUMMARY

[0003] The purpose of the present application is to provide a CPE cutting board with marble lines and a preparation device and process thereof, which has the advantages of high efficiency, solves the problem that the existing CPE cutting board with marble lines has low efficiency in the preparation process, increases the workload of the workers, and causes the processing cost of the cutting board to rise, and is prone to unstable process, resulting in different performance of the cutting boards of different batches. To achieve the above purpose, the present application provides the following technical scheme: a CPE cutting board with marble lines preparation device, comprising an injection molding mechanism, an automatic discharge mechanism is installed at the discharge end of the injection molding mechanism, and the automatic discharge mechanism collects the injection molding cutting board discharged by the injection molding mechanism. The automatic discharge mechanism includes an injection molding machine body, on which a barrel is installed. The barrel conveys and melts the flow pattern masterbatch and the base resin. The discharge end of the barrel is connected to a first molding die. A second molding die is provided on one side of the first molding die for use with it. After melting, the melt forms a plate inside the first molding die and the first molding die. The automatic feeding mechanism includes a receiving frame, which is located at the bottom of the opposite side of the first forming mold and the second forming mold, and a movable seat is fixedly connected to the surface of the receiving frame. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a drive device is installed at the output end of the material cylinder, and the output shaft of the drive device is connected to the screw inside the material cylinder. As a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, the top of the material cylinder is connected to a raw material tank, and the raw material tank contains flow pattern masterbatch and base resin. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a low-temperature heater is installed at the inlet and outlet ends of the material cylinder surface, and a high-temperature heater is installed at the middle end of the material cylinder surface. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a support base is movably installed at the bottom of the second molding mold, a first hydraulic rod is fixedly installed on one side of the top of the support base, a fixed frame is fixedly connected to the moving end of the first hydraulic rod, and the fixed frame is fixedly connected to the second molding mold to push it to move. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a second hydraulic rod is fixedly installed on the fixed frame, and a pushing structure is fixedly connected to the moving end of the second hydraulic rod. One end of the pushing structure extends into the second forming mold for pushing material, and a spring is fixedly connected to the pushing structure and the opposite side of the second forming mold. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a guide plate is fixedly connected to the top of the inner wall of the receiving frame, and the guide plate guides the cutting board falling into the receiving frame. In a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, a fan is fixedly installed on the surface of the receiving frame, and an air outlet is opened on the surface of the receiving frame to cooperate with the fan. The fan draws air from inside the receiving frame through the air outlet to create negative pressure inside, thereby cooling and adsorbing the cutting board inside the receiving frame. As a preferred embodiment of the marble-patterned CPE cutting board preparation equipment of the present invention, the movable seat is internally threaded with a lead screw, one end of the lead screw is rotatably connected to a fixed plate, and the other end of the lead screw is rotatably connected to a bracket. The fixed plate and the bracket are fixedly installed on the support base. A motor is fixedly installed on the fixed plate, and the output shaft of the motor is fixedly connected to one end of the lead screw. A pulley is fixedly installed at the bottom of the movable seat, and a slide rail is movably connected to the bottom of the pulley. The slide rail is fixedly installed on the top of the bracket. A process for preparing a CPE cutting board with a marble pattern includes the following steps: S1. Raw material preparation and proportioning: CPE resin and additives are mixed to prepare a base material, and flow pattern masterbatch with a melting point higher than that of the base material is mixed thoroughly and evenly in a mixer at a ratio of 96:4-99:1. S2. Injection molding: The substrate and flow pattern masterbatch are fed into a single screw injection molding machine. The single screw injection molding machine preheats the substrate and flow pattern masterbatch before melting them. The molten material enters the co-extrusion distributor. The co-extrusion distributor is equipped with a coat hanger-type flow channel. When the melt flows inside the coat hanger-type flow channel, it is stretched and folded to form a marble texture effect. S3. Texture is formed. The melt finally enters the molding mold. The different melt viscosity between the flow pattern masterbatch and the substrate causes them to have different flow speeds and paths in the mold cavity. This difference in flow rate causes the pigment to be distributed in the substrate in irregular strip, band or vortex shape. After injection, the melt is cooled to form a plate-shaped plastic cutting board. S4. Post-processing: After the forming mold discharges the cutting board, the cutting board is conveyed and cooled by an automatic feeding mechanism. After cooling, the cutting board is repaired and polished, and then anti-slip textures are processed on the surface of the cutting board by embossing rollers. Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Compared with the single solid color appearance of ordinary plastic cutting boards, the marble-patterned CPE cutting board prepared by this invention has extremely high decorative and simulation properties. Through the viscosity difference between the flow pattern masterbatch and the substrate in the molten state and the stretching and folding in the flow channel, the surface of the cutting board can present a natural, smooth, and unique marble texture, breaking the stereotype of traditional plastic products as cheap and monotonous. This stone-like visual effect not only caters to the aesthetic demand of modern kitchens for high-value kitchenware, but also significantly enhances the product's grade, giving it a stronger differentiation advantage and higher premium in market competition. 2. Compared with traditional "post-processing water transfer printing" or "surface spraying" marble imitation processes, this invention adopts an integrated molding technology, with the texture directly penetrating the material surface or tightly bonded to it. This fundamentally eliminates the risk of coating peeling and pigment migration contaminating food, and is more in line with the safety standards for food contact materials. At the same time, since the texture is formed through physical co-extrusion or injection molding rather than surface adhesion, the texture remains clearly visible even after long-term exposure to knife cutting, friction, and washing. It does not exhibit the phenomenon of the substrate being exposed and becoming unsightly due to surface wear, as seen in ordinary film-coated cutting boards, thus greatly extending the product's service life. Attached Figure Description

[0004] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a schematic diagram of the injection molding mechanism of the present invention. Figure One ; Figure 3 This is a schematic diagram of the injection molding mechanism of the present invention. Figure Two ; Figure 4 This is a schematic diagram of the automatic discharging mechanism of the present invention. Figure One ; Figure 5 This is a schematic diagram of the automatic discharging mechanism of the present invention. Figure Two ; Figure 6 This is a flowchart of the preparation process of the present invention. In the diagram: 1. Injection molding mechanism; 2. Automatic unloading mechanism; 101. Injection molding machine body; 102. Drive unit; 103. Barrel; 104. Low-temperature heater; 105. First molding die; 106. Second molding die; 107. Fixing frame; 108. Support base; 109. First hydraulic rod; 110. High-temperature heater; 111. Raw material tank; 112. Second hydraulic rod; 113. Pushing structure; 114. Spring; 201. Receiving frame; 202. Guide plate; 203. Moving seat; 204. Bracket; 205. Pulley; 206. Lead screw; 207. Slide rail; 208. Fixing plate; 209. Motor; 210. Fan; 211. Air outlet. Detailed Implementation

[0005] Example 1 Please see Figures 1-5 A CPE cutting board preparation device with marble pattern includes an injection molding mechanism 1, and an automatic discharge mechanism 2 is installed at the discharge end of the injection molding mechanism 1 to collect the injection molded cutting boards discharged by the injection molding mechanism 1. Furthermore, the automatic discharge mechanism 2 includes an injection molding machine body 101, on which a barrel 103 is installed. The barrel 103 conveys and melts the flow pattern masterbatch and the base resin. The discharge end of the barrel 103 is connected to a first molding die 105. A second molding die 106 is provided on one side of the first molding die 105 for use with it. After melting, the melt forms a platen inside the first molding die 105. Furthermore, the automatic feeding mechanism 2 includes a receiving frame 201, which is located at the bottom of the first forming mold 105 and the second forming mold 106 on opposite sides, and a movable seat 203 is fixedly connected to the surface of the receiving frame 201. Furthermore, a drive device 102 is installed at the output end of the barrel 103, and the output shaft of the drive device 102 is connected to the screw inside the barrel 103. Furthermore, the top of the barrel 103 is connected to a raw material tank 111, which contains flow pattern masterbatch and base resin. Furthermore, a low-temperature heater 104 is installed at the feed end and discharge end of the material cylinder 103, and a high-temperature heater 110 is installed at the middle of the material cylinder 103. Furthermore, a support base 108 is movably installed at the bottom of the second molding die 106, and a first hydraulic rod 109 is fixedly installed on one side of the top of the support base 108. A fixed frame 107 is fixedly connected to the moving end of the first hydraulic rod 109, and the fixed frame 107 is fixedly connected to the second molding die 106 to push it to move. Furthermore, a second hydraulic rod 112 is fixedly installed on the fixed frame 107. A pushing structure 113 is fixedly connected to the moving end of the second hydraulic rod 112. One end of the pushing structure 113 extends into the second forming mold 106 for pushing materials. A spring 114 is fixedly connected to the pushing structure 113 and the opposite side of the second forming mold 106. Furthermore, a guide plate 202 is fixedly connected to the top of the inner wall of the receiving frame 201, and the guide plate 202 guides the cutting board falling into the receiving frame 201. Furthermore, a fan 210 is fixedly installed on the surface of the receiving frame 201, and an air outlet 211 is opened on the surface of the receiving frame 201 to cooperate with the fan 210. The fan 210 draws air from the inside of the receiving frame 201 through the air outlet 211 to create negative pressure inside, thereby cooling and adsorbing the cutting board inside the receiving frame 201. Furthermore, the movable seat 203 is internally threaded with a lead screw 206. One end of the lead screw 206 is rotatably connected to a fixed plate 208, and the other end of the lead screw 206 is rotatably connected to a bracket 204. The fixed plate 208 and the bracket 204 are fixedly installed on the support base 108. A motor 209 is fixedly installed on the fixed plate 208. The output shaft of the motor 209 is fixedly connected to one end of the lead screw 206. A pulley 205 is fixedly installed at the bottom of the movable seat 203. A slide rail 207 is movably connected to the bottom of the pulley 205. The slide rail 207 is fixedly installed on the top of the bracket 204. First, the flow pattern masterbatch and base resin are stored in the raw material tank 111. Then, the raw material enters the barrel 103, where it is conveyed and plasticized by a screw driven by the drive device 102. During this process, the low-temperature heater 104 and high-temperature heater 110 on the surface of the barrel 103 heat the material in stages, melting it into a uniform fluid. The molten material is then injected between the first molding mold 105 and the second molding mold 106. After cooling and solidification, a marble-patterned CPE board is formed. Subsequently, the first hydraulic rod 109 moves the second molding mold 106 through the fixing frame 107 to demold the material. The pressure rod 112 pushes the pushing structure 113 to move. The pushing structure 113 overcomes the resistance of the spring 114 and pushes the cutting board out of the second forming mold 106, so that the finished cutting board falls into the bottom receiving frame 201 and is guided smoothly into the frame by the guide plate 202. Finally, the fan 210 is started to generate negative pressure inside the receiving frame 201 through the air outlet 211 to adsorb and fix the cutting board and assist in rapid cooling. At the same time, the motor 209 drives the lead screw 206 to rotate, which drives the threaded moving seat 203 to move along the slide rail 207, thereby automatically conveying the full receiving frame 201 to the next station. Example 2 Please see Figure 6 A process for preparing a CPE cutting board with a marble pattern includes the following steps: S1. Raw material preparation and proportioning: CPE resin and additives are mixed to prepare a base material, and flow pattern masterbatch with a melting point higher than that of the base material is mixed thoroughly and evenly in a mixer at a ratio of 96:4-99:1. S2. Injection molding: The substrate and flow pattern masterbatch are fed into a single screw injection molding machine. The single screw injection molding machine preheats the substrate and flow pattern masterbatch before melting them. The molten material enters the co-extrusion distributor. The co-extrusion distributor is equipped with a coat hanger-type flow channel. When the melt flows inside the coat hanger-type flow channel, it is stretched and folded to form a marble texture effect. S3. Texture is formed. The melt finally enters the molding mold. The different melt viscosity between the flow pattern masterbatch and the substrate causes them to have different flow speeds and paths in the mold cavity. This difference in flow rate causes the pigment to be distributed in the substrate in irregular strip, band or vortex shape. After injection, the melt is cooled to form a plate-shaped plastic cutting board. S4. Post-processing: After the forming mold discharges the cutting board, the cutting board is conveyed and cooled by an automatic feeding mechanism. After cooling, the cutting board is repaired and polished, and then anti-slip textures are processed on the surface of the cutting board by embossing rollers. Through precise raw material ratios and a special flow channel design, the problems of stiff textures and low simulation of traditional cutting boards are effectively solved. In steps S1 and S2, flow pattern masterbatch with a melting point higher than that of the substrate is selected, and combined with a coat hanger-style flow channel, the stretching and folding effect of the melt during the flow process is used to make the flow pattern masterbatch form a natural strip or vortex distribution in the substrate, rather than a simple color mixing, thus giving the cutting board a realistic and unique marble visual effect. At the same time, step S3 uses the difference in melt viscosity between different materials to assist in texture shaping. This physical co-extrusion molding method replaces the traditional water transfer printing or spray painting process, which not only avoids the food safety hazards that chemical coatings may bring, but also makes the texture integrated with the cutting board substrate, wear-resistant and colorfast, significantly improving the product's aesthetics and service life. This solution not only improves product quality but also significantly enhances production efficiency and safety through automated post-processing. Step S4 introduces an automatic unloading mechanism in conjunction with a cooling system, enabling rapid cooling and conveying of the cutting board after molding. This reduces the risk of thermal deformation and labor costs caused by manual handling. Furthermore, the embossing treatment on the cutting board surface creates anti-slip textures that not only increase the product's tactile feel and friction, preventing slippage when cutting vegetables, but also further conceal minor imperfections that may occur during the injection molding process. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CPE cutting board preparation device with marble pattern, comprising an injection molding mechanism (1), characterized in that: The discharge end of the injection molding mechanism (1) is equipped with an automatic discharge mechanism (2), which collects the injection molding board discharged by the injection molding mechanism (1). The automatic discharge mechanism (2) includes an injection molding machine body (101), on which a barrel (103) is installed. The barrel (103) conveys and melts the flow pattern masterbatch and the base resin. The discharge end of the barrel (103) is connected to a first molding die (105). A second molding die (106) is provided on one side of the first molding die (105) for use with it. After melting, the melt forms a plate inside the first molding die (105). The automatic feeding mechanism (2) includes a receiving frame (201), which is located at the bottom of the opposite side of the first forming mold (105) and the second forming mold (106). A movable seat (203) is fixedly connected to the surface of the receiving frame (201).

2. The CPE cutting board preparation equipment with marble pattern according to claim 1, characterized in that: A drive device (102) is installed at the output end of the barrel (103), and the output shaft of the drive device (102) is connected to the screw inside the barrel (103).

3. The CPE cutting board preparation equipment with marble pattern according to claim 1, characterized in that: The top of the barrel (103) is connected to a raw material tank (111), which contains flow pattern masterbatch and base resin.

4. The CPE cutting board preparation equipment with marble pattern according to claim 1, characterized in that: Low-temperature heaters (104) are installed at the feed end and discharge end of the material cylinder (103), and a high-temperature heater (110) is installed at the middle end of the material cylinder (103).

5. The CPE cutting board preparation equipment with marble pattern according to claim 1, characterized in that: The second molding die (106) has a support base (108) movably installed at the bottom. A first hydraulic rod (109) is fixedly installed on one side of the top of the support base (108). A fixed frame (107) is fixedly connected to the moving end of the first hydraulic rod (109). The fixed frame (107) is fixedly connected to the second molding die (106) to push it to move.

6. The CPE cutting board preparation equipment with marble pattern according to claim 5, characterized in that: A second hydraulic rod (112) is fixedly installed on the fixed frame (107). The moving end of the second hydraulic rod (112) is fixedly connected to a pusher structure (113). One end of the pusher structure (113) extends into the second forming mold (106) for pushing material. A spring (114) is fixedly connected to the pusher structure (113) and the opposite side of the second forming mold (106).

7. The CPE cutting board preparation equipment with marble pattern according to claim 6, characterized in that: A guide plate (202) is fixedly connected to the top of the inner wall of the receiving frame (201), and the guide plate (202) guides the cutting board that falls into the receiving frame (201).

8. The CPE cutting board preparation equipment with marble pattern according to claim 7, characterized in that: A fan (210) is fixedly installed on the surface of the receiving frame (201). An air outlet (211) is opened on the surface of the receiving frame (201) to cooperate with the fan (210). The fan (210) draws air from the inside of the receiving frame (201) through the air outlet (211) to generate negative pressure inside, so as to cool and absorb the cutting board inside the receiving frame (201).

9. The CPE cutting board preparation equipment with marble pattern according to claim 8, characterized in that: The movable seat (203) is internally threaded with a lead screw (206). One end of the lead screw (206) is rotatably connected to a fixed plate (208), and the other end of the lead screw (206) is rotatably connected to a bracket (204). The fixed plate (208) and the bracket (204) are fixedly installed on the support base (108). A motor (209) is fixedly installed on the fixed plate (208). The output shaft of the motor (209) is fixedly connected to one end of the lead screw (206). A pulley (205) is fixedly installed at the bottom of the movable seat (203). A slide rail (207) is movably connected to the bottom of the pulley (205). The slide rail (207) is fixedly installed on the top of the bracket (204).

10. A process for preparing a CPE cutting board with a marble pattern, characterized in that, Includes the following steps: S1. Raw material preparation and proportioning: CPE resin and additives are mixed to prepare a base material, and flow pattern masterbatch with a melting point higher than that of the base material is mixed thoroughly and evenly in a mixer at a ratio of 96:4-99:

1. S2. Injection molding: The substrate and flow pattern masterbatch are fed into a single screw injection molding machine. The single screw injection molding machine preheats the substrate and flow pattern masterbatch before melting them. The molten material enters the co-extrusion distributor. The co-extrusion distributor is equipped with a coat hanger-type flow channel. When the melt flows inside the coat hanger-type flow channel, it is stretched and folded to form a marble texture effect. S3. Texture is formed. The melt finally enters the molding mold. The different melt viscosity between the flow pattern masterbatch and the substrate causes them to have different flow speeds and paths in the mold cavity. This difference in flow rate causes the pigment to be distributed in the substrate in irregular strip, band or vortex shape. After injection, the melt is cooled to form a plate-shaped plastic cutting board. S4. Post-processing: After the forming mold discharges the cutting board, the cutting board is conveyed and cooled by an automatic feeding mechanism. After cooling, the cutting board is repaired and polished, and then anti-slip textures are processed on the surface of the cutting board by embossing rollers.

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