Injection mold and injection method for a sliding cover of a coffee machine

Abstract

The application relates to the technical field of injection molds, in particular to an injection mold and an injection method for a coffee machine sliding sleeve, which comprise an upper mold base and a lower mold base capable of being combined together, the bottom of the upper mold base is provided with an upper mold core, and the top of the lower mold base is provided with a lower mold core; when the upper mold base and the lower mold base are combined, the left and right horizontal positions are relatively displaced to be close to each other, the upper mold core, the lower mold core, the left horizontal position and the right horizontal position form a forming chamber for injection molding of a sliding sleeve body; and the left and right side inserts are relatively displaced to be close to each other to form a water nozzle forming chamber for injection molding of a water inlet nozzle, the water nozzle forming chamber is in communication connection with the forming chamber. The structure can realize the forming operation of the sliding sleeve body and the water inlet nozzle in the same injection mold, the CNC milling process of the water inlet nozzle and the water inlet is not needed, and therefore the production operation efficiency of the coffee machine sliding sleeve can be further improved.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to an injection mold and injection method for a sliding sleeve of a coffee machine. Background Technology

[0002] In the existing technology, the coffee machine sliding sleeve is mainly adapted and installed in capsule coffee machines. The coffee machine sliding sleeve can move up and down through the linkage of the upper and lower actuators, thereby adapting to capsules of different sizes.

[0003] See Figure 1 The present invention is a specific structure of a sliding sleeve of a coffee machine currently manufactured by the inventor, including a sliding sleeve body 1-1, mounting slots 1-2 located on the left and right sides of the sliding sleeve body, and a water inlet 1-3 located on the front side of the sliding sleeve body and extending obliquely, the water inlet having a water inlet 1-4.

[0004] Based on the above structure, due to the structural influence of the water inlet and the precision requirements of the water inlet, it is not possible to configure the side slide position for injection molding separately for the water inlet and the water inlet; the sliding sleeve body, the mounting slots on both sides and the reserved plastic 1-5 can only be injection molded by injection molding, and the reserved plastic positions are then machined by CNC milling to obtain the water inlet and the water inlet.

[0005] However, the inventors discovered in actual production operations that the method of injection molding the sliding sleeve body and the mounting slots on both sides, followed by CNC machining to form the water outlet and water inlet, has the following drawbacks: 1. Because the sliding sleeve body, mounting slot and water inlet cannot be machined in one go, the mounting slot and water inlet need to be machined by CNC. Compared with injection molding alone, the production efficiency of this manufacturing process of injection molding, transfer and CNC milling is limited. 2. Since the sliding sleeve body needs to be injection molded before it can be clamped on the CNC worktable for milling, the clamping depends on the operator's skill and force control. If there is a positional deviation or excessive force during clamping, the machining accuracy of the water inlet and water outlet may not meet the design requirements, and the product surface may be damaged, which seriously limits the accuracy and surface quality of the sliding sleeve.

[0006] Therefore, a new technical solution needs to be researched to address the above problems. Summary of the Invention

[0007] In view of this, the present invention addresses the deficiencies of the prior art, and its main objective is to provide an injection mold for a coffee machine sliding sleeve, effectively solving the technical problems of low efficiency, low precision, and poor surface quality in the production of sliding sleeves caused by the inability of the injection mold used for injection molding coffee machine sliding sleeves to achieve one-time injection molding.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An injection mold for a coffee machine sliding sleeve includes an upper mold base and a lower mold base that can be closed together. The upper mold base has an upper mold core at its bottom and a lower mold core at its top. The lower mold base is movably equipped with a left slide and a right slide. The left slide is movably equipped with a left insert, and the right slide is movably equipped with a right insert. After the upper mold base and the lower mold base are closed, the left and right slides can move closer together in a coordinated manner, so that the upper mold core, the lower mold core, the left slide and the right slide form a molding cavity for injection molding the sliding sleeve body; and the left and right inserts can move closer together in a coordinated manner to form a water nozzle molding cavity for injection molding the water inlet, and the water nozzle molding cavity can be connected to the molding cavity.

[0009] Furthermore, it also includes a left movable seat and a right movable seat that are movably installed on the lower mold base; The left sliding position is fixedly installed on the right surface of the left movable seat, and the right sliding position is fixedly installed on the left surface of the right movable seat; Both the left and right movable seats are provided with first inclined holes, and the bottom left and right sides of the upper mold base are provided with first inclined rods, which are inserted into the first inclined holes. When the upper mold base moves downward relative to the lower mold base, the left and right sliding parts can move synchronously towards the molding cavity through the cooperation of the first inclined rod and the first inclined hole.

[0010] Furthermore: both the left movable seat and the right movable seat are provided with a first slot; The first slot of the left movable seat is movably mounted with a first movable plate, and the first movable plate is connected to the left insert. The first slot of the right movable seat is movably mounted with a second movable plate, which is connected to the right side insert.

[0011] Furthermore: Both the first movable plate and the second movable plate are provided with a second oblique hole penetrating their upper and lower surfaces, and the first oblique rod can extend downward through the second oblique hole and the first oblique hole in sequence; The first oblique hole is an oblique hole in the shape of an oblique hole, and the second oblique hole is a circular oblique hole; the length of the oblique hole is greater than the diameter of the circular oblique hole, and the diameter of the circular oblique hole is greater than the diameter of the first oblique rod; When the upper mold base and the lower mold base are in the mold-closed state, the upper mold base moves up a first distance relative to the lower mold base, which can drive the first moving plate and the second moving plate to move away from the molding cavity, so that the left insert and the right insert are demolded; when the upper mold base moves up a second distance relative to the lower mold base, it can drive the left moving base and the right moving base to move away from the molding cavity, so that the left slide and the right slide are demolded.

[0012] Furthermore: the bottom of the first movable plate and the second movable plate are provided with a first hook, and the top of the left side insert and the right side insert are provided with a second hook, and the first hook can be connected to the second hook.

[0013] Furthermore: the left row is provided with an installation notch for movably installing the left side insert and a clearance notch that can provide clearance for the first moving plate; the right row is provided with an installation notch for movably installing the right side insert and a clearance notch that can provide clearance for the first moving plate. The first movable plate can extend to the mounting notch by avoiding the notch, so that the first movable plate can be connected to the corresponding left side insert and right side insert. At the same time, the top of the first movable plate, the top of the left side insert, the top of the right side insert, the top of the left side slide, and the top of the right side slide are all flush. A first limiting plate is installed at the top of the left slide to restrict the vertical position of the left insert, and a first limiting plate is installed at the top of the right slide to restrict the vertical position of the right insert.

[0014] Furthermore: when the upper mold base is closed relative to the lower mold base, the left and right slides can form a molding insertion opening; The upper mold core is provided with a molding insertion protrusion that can be inserted into the molding insertion port, and the upper mold base is provided with a glue injection channel. The glue injection channel extends upward through the upper surface of the upper mold base to form a glue injection port, and extends downward through the lower surface of the insertion protrusion to form a glue injection port. When the upper mold base is closed relative to the lower mold base, the insertion protrusion can be inserted into the molding insertion port, so that the injection port is connected to the molding chamber.

[0015] Furthermore, it also includes a front slide, and the rear side of the front slide is provided with a sprue molding insert that can be inserted into the sprue molding cavity to cooperate with the injection molding of the sprue inlet; The front side of the slide is mounted on the front side movable seat, and can be movably mounted on the lower mold base via the front movable seat; The front movable seat is provided with a third inclined hole, the diameter of which is the same as that of the second inclined hole; the upper mold seat is provided with a third inclined rod, the diameter of which is the same as that of the first inclined rod, and the third inclined rod can be inserted into the third inclined hole.

[0016] Furthermore, it also includes a rear slide, which is movably mounted on the lower mold base via a rear movable seat. The rear slide can be inserted into the molding cavity to cooperate with the injection molding sliding sleeve body. The rear movable seat is provided with a fourth inclined hole, the diameter of which is the same as that of the third inclined hole; the upper mold seat is provided with a fourth inclined rod, the diameter of which is the same as that of the third inclined rod, and the third inclined rod can be inserted into the fourth inclined hole.

[0017] To achieve the above objectives, the present invention also employs the following technical solution: an injection molding method for a coffee machine sliding sleeve, applied to the aforementioned injection mold, the injection molding method comprising: Step 1: Provide an injection molding machine; fix the lower mold base to the fixed plate of the injection molding machine, fix the upper mold base to the movable plate of the injection molding machine, and move the movable plate up and down in conjunction with the ejector system; connect the extrusion system of the injection molding machine to the injection port; Step 2: Start the ejector system to drive the movable plate to move downwards and move the upper mold base relative to the lower mold base to close the mold. Among them, the upper mold base moves down, which can link the left side slide, the right side slide, and the rear side slide to form a molding cavity, and the left side insert and the right side insert to form a water nozzle forming cavity. Furthermore, the front moving part moves in conjunction with the sprue forming insert, causing the sprue forming pin to be inserted into the sprue forming cavity; and the insertion protrusion is inserted into the insertion port. Step 3: Start the extrusion system and inject the hot melt slurry from the injection port, through the injection channel and injection port into the molding chamber and water nozzle molding chamber; wait 30-60 seconds for cooling and solidification to form the sliding sleeve body with water inlet. Step 4: Drive the upper mold base to move upward for the first time through the ejector system; and through the linkage of the first inclined rod, the left and right inserts move away from the demolding sprue nozzle. Through the linkage of the third inclined rod, the front slide moves forward to demold the sprue forming insert and the sprue nozzle is demolded. Through the linkage of the fourth inclined rod, the rear slide moves backward to demold the rear side of the sliding sleeve body. Step 5: Drive the upper mold base to move upward for the second time through the ejector system, and move the left and right slides away from the moving demolding sliding sleeve body through the linkage of the first inclined rod; Step 6: Drive the ejector plate upward through the ejector system, so that the ejector pin extends upward from the surface of the lower mold core, and ejects the sliding sleeve body from the lower mold core and unloads it; Step 7: Repeat steps 2 to 6 to continue injection molding the sliding sleeve body with water inlet and water outlet.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: 1. By movably installing a left insert on the left side slide and a right insert on the right side slide, when the left and right slides move relative to each other and approach the molding chamber of the surrounding structure for injection molding the sliding sleeve body, the left insert and right insert can move relative to each other and approach the water nozzle molding chamber of the surrounding structure for injection molding the water inlet. With this structure, the molding operations of the sliding sleeve body and the water inlet can be completed in the same injection mold, without the need to use CNC milling to process the water inlet and water inlet, thereby further improving the production efficiency of the coffee machine sliding sleeve. 2. Since CNC milling is not required, the surface of the sliding sleeve body can be damaged due to clamping, thereby improving the surface quality of the product. At the same time, the water inlet and water outlet are injection molded, which allows for better control of the dimensional and positional accuracy of the water inlet and water outlet compared to CNC milling, thereby further improving the production yield of the coffee machine sliding sleeve. 3. By movably installing a left-side insert on the left slide and a right-side insert on the right slide, there is no need to configure a separate side slide for the injection molding sprue nozzle, thus allowing for the layout of the front slide and the sprue forming insert. This enables the sprue nozzle and sprue to be injection molded in one go, further improving production efficiency. Moreover, this design does not require increasing the mold blank size, directly expanding the sprue nozzle forming capacity and achieving an extremely compact mold structure. Furthermore, without the need for complex timing control or additional power sources, the filling of complex structures can be achieved solely through the mechanical linkage of mold opening and closing, reducing mold failure rate and maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This describes the specific structure of a sliding sleeve on a coffee machine currently being manufactured by the inventor. Figure 2 This is a three-dimensional structural schematic diagram of an injection mold for a coffee machine sliding sleeve provided in an embodiment of this application; Figure 3 yes Figure 2 A schematic diagram of the lower mold base of an injection mold for a coffee machine sliding sleeve is shown. Figure 4 yes Figure 2 A schematic diagram of the upper mold base of an injection mold for a coffee machine sliding sleeve is shown. Figure 5 yes Figure 2 A partial three-dimensional structural diagram of an injection mold for a coffee machine sliding sleeve is shown. Figure 6 yes Figure 5 An exploded three-dimensional view of a partial mold for a sliding sleeve of a coffee machine is shown. Figure 7 yes Figure 5 A partial three-dimensional structural diagram of an injection mold for a coffee machine sliding sleeve is shown. Figure 8 yes Figure 7 The image shows a cross-sectional view at point AA of an injection mold for a coffee machine sliding sleeve. Figure 9 yes Figure 7 The image shows a cross-sectional view at the BB section of an injection mold for a coffee machine sliding sleeve. Figure 10 yes Figure 5 A three-dimensional structural diagram of the left slide of an injection mold for a coffee machine sliding sleeve is shown. Figure 11 yes Figure 10 The diagram shows a three-dimensional view of the left side of the injection mold for a coffee machine sliding sleeve from another angle. Figure 12 yes Figure 2 The image shows a sliding sleeve body injection molded from a coffee machine sliding sleeve.

[0021] The following are the labeling elements in the figure: 10. Upper mold base; 11. Upper mold core; 111. Insertion protrusion; 112. Injection port; 113. Injection nozzle; 12. First inclined rod; 13. Third inclined rod; 14. Fourth inclined rod; 15. Ejector plate; 151. Ejector pin; 20. Lower mold base; 21. Lower mold core; 22. Left sliding block; 221. Left movable seat; 222. First inclined hole; 2221. Inner abutment end; 2222. Outer abutment end; 223. First slot; 224. First movable plate; 2241. First hook; 225. Second movable plate; 226. Second inclined hole; 227. Mounting notch; 22 8. Avoidance notch; 229. First limiting plate; 210. Left side forming part; 23. Left side insert; 231. Second hook part; 24. Right side slide; 241. Right side moving seat; 242. Right side forming part; 25. Right side insert; 26. Insertion port; 27. Front side slide; 271. Sprue forming insert; 272. Front side moving seat; 273. Third oblique hole; 28. Rear side slide; 281. Rear side moving seat; 282. Fourth oblique hole; 30. Forming chamber; 40. Sprue forming chamber; 50. Sliding sleeve body; 51. Inlet nozzle; 511. Inlet; 52. Mounting slot. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figures 2 to 12 The injection mold for the coffee machine sliding sleeve provided in this application embodiment will now be described. The injection mold for the coffee machine sliding sleeve includes an upper mold base 10 and a lower mold base 20.

[0028] The upper mold base 10 and the lower mold base 20 can move relative to each other to close or open the mold. The upper mold base 10 is provided with an upper mold core 11 at the bottom, and the lower mold base 20 is provided with a lower mold core 21 at the top. The lower mold base 20 is movably equipped with a left slide 22 and a right slide 24. The left slide 22 is movably equipped with a left insert 23, and the right slide 24 is movably equipped with a right insert 25. When the upper mold base 10 and the lower mold base 20 are closed, the left slide 22 and the right slide 24 can move relative to each other and move closer together, so that the upper mold core 11, the lower mold core 21, the left slide 22 and the right slide 24 surround the molding chamber 30 for injection molding the sliding sleeve body 50; and the left insert 23 and the right insert 25 move relative to each other and surround the water nozzle molding cavity 40 for injection molding the water inlet 51. The water nozzle molding cavity 40 can be electrically connected to the molding chamber 30.

[0029] It should be noted that the lower mold core 21 is used to injection mold the outlet position at the bottom of the sliding sleeve body 50. The outlet position can be connected to the water inlet 51, and water is injected into the outlet through the water inlet 51. When the coffee capsule is installed, the sliding sleeve body 50 can abut against the coffee capsule, so that water can enter from the water inlet 51 and be injected into the coffee capsule through the outlet.

[0030] Specifically, it also includes a left movable seat 221 and a right movable seat 241 that are movably installed on the lower mold base 20; the left movable seat 22 is fixedly installed on the right surface of the left movable seat 221, and the right movable seat 24 is fixedly installed on the left surface of the right movable seat 241; both the left movable seat 221 and the right movable seat 241 are provided with a first inclined hole 222, and the left and right sides of the bottom of the upper mold base 10 are provided with a first inclined rod 12, which is inserted into the first inclined hole 222; when the upper mold base 10 moves down relative to the lower mold base 20, the left movable seat 22 and the right movable seat 24 can move synchronously toward the molding chamber 30 through the cooperation of the first inclined rod 12 and the first inclined hole 222.

[0031] More specifically, both the left movable seat 221 and the right movable seat 241 are provided with a first slot 223; a first movable plate 224 is movably installed in the first slot 223 of the left movable seat 221, and the first movable plate 224 is connected to the left insert 23; a second movable plate 225 is movably installed in the first slot 223 of the right movable seat 241, and the second movable plate 225 is connected to the right insert 25. Both the first moving plate 224 and the second moving plate 225 are provided with second oblique holes 226 penetrating their upper and lower surfaces. The first oblique rod 12 can extend downward through the second oblique hole 226 and the first oblique hole 222 in sequence. The first oblique hole 222 is an oblique hole in the shape of an oblique waist, and the second oblique hole 226 is an oblique hole in the shape of a circle. The length of the oblique hole in the shape of an oblique waist is greater than the diameter of the oblique hole in the shape of a circle, and the diameter of the oblique hole in the shape of a circle is greater than the diameter of the first oblique rod 12. When the upper mold base 10 and the lower mold base 20 are in the mold-closed state, the upper mold base 10 moves upward relative to the lower mold base 20 by a first distance, which can link the first moving plate 224 and the second moving plate 225 to move away from the molding chamber 30, so that the left insert 23 and the right insert 25 are demolded. When the upper mold base 10 moves upward relative to the lower mold base 20 by a second distance, it can link the left moving base 221 and the right moving base 241 to move away from the molding chamber 30, so that the left slide 22 and the right slide 24 are demolded.

[0032] It should be noted that the oblique hole extends to the left and right and has an inner abutment end 2221 and an outer abutment end 2222. When the upper mold base 10 closes relative to the lower mold base 20, the first oblique rod 12 abuts against the inner abutment end 2221. When the upper mold base 10 opens relative to the lower mold base 20, the first oblique rod 12 abuts against the outer abutment end 2222. When the upper mold base moves up a first distance relative to the lower mold base, the first oblique rod moves from the inner abutment end to the outer abutment end, but does not abut against the outer abutment end. When the upper mold base moves up a second distance relative to the lower mold base, the first oblique rod abuts against the outer abutment end and moves away from the left and right slides respectively.

[0033] Furthermore, the bottom of the first movable plate 224 and the second movable plate 225 are provided with a first hook portion 2241, and the top of the left side insert 23 and the right side insert 25 are provided with a second hook portion 231. The first hook portion 2241 can be connected to the second hook portion 231. With this structure, the connection between the first movable plate 224 and the left side insert 23 and the connection between the second movable plate 225 and the right side insert 25 can be completed through the structure of the first hook portion 2241 and the second hook portion 231, making assembly simple.

[0034] Preferably, the left row position 22 is provided with an installation notch 227 for movably installing the left insert 23 and a clearance notch 228 for providing clearance for the first movable plate 224; the right row position 24 is provided with an installation notch 227 for movably installing the right insert 25 and a clearance notch 228 for providing clearance for the first movable plate 224; the first movable plate 224 can extend to the installation notch 227 through the clearance notch 228, so that the first movable plate 224 can be connected to the corresponding left insert 23 and right insert 25, and the top of the first movable plate 224, the top of the left insert 23, the top of the right insert 25, the top of the left row position 22, and the top of the right row position 24 are all flush; the top of the left row position 22 is provided with a first limiting plate 229 for limiting the vertical position of the left insert 23, and the top of the right row position 24 is provided with a first limiting plate 229 for limiting the vertical position of the right insert 25.

[0035] In other embodiments, when the upper mold base 10 is closed relative to the lower mold base 20, the left slide 22 and the right slide 24 can form a molding insertion port 26; the upper mold core 11 is provided with a molding insertion protrusion 111 that can be inserted into the molding insertion port 26; the upper mold base 10 is provided with a glue injection channel, which extends upward through the upper surface of the upper mold base 10 to form a glue injection port 112, and extends downward through the lower surface of the insertion protrusion 111 to form a glue injection port 113; when the upper mold base 10 is closed relative to the lower mold base 20, the insertion protrusion 111 can be inserted into the molding insertion port 26, so that the glue injection port 113 is connected to the molding chamber 30.

[0036] Specifically, it also includes a front slide 27, the rear side of which is provided with a sprue forming insert 271 that can be inserted into the sprue forming cavity 40 to cooperate with the injection molding sprue inlet 511; the front slide 27 is mounted on the front moving seat 272, and can be movably mounted on the lower mold base 20 through the front moving seat 272; the front moving seat 272 is provided with a third inclined hole 273, the diameter of the third inclined hole 273 is the same as the diameter of the second inclined hole 226; the upper mold base 10 is provided with a third inclined rod 13, the diameter of the third inclined rod 13 is the same as the diameter of the first inclined rod 12, and the third inclined rod 13 can be inserted into the third inclined hole 273.

[0037] It also includes a rear slide 28, which is movably mounted on the lower mold base 20 via a rear movable seat 281. The rear slide 28 can be inserted into the molding chamber 30 to cooperate with the injection molding of the sliding sleeve body 50. The rear movable seat 281 is provided with a fourth oblique hole 282, the diameter of which is the same as that of the third oblique hole 273. The upper mold base 10 is provided with a fourth oblique rod 14, the diameter of which is the same as that of the third oblique rod 13. The third oblique rod 13 can be inserted into the fourth oblique hole 282.

[0038] Specifically, the left side of the left slide 22 is provided with a left forming part on the right side, and the right side of the right slide 24 is provided with a right forming part 242 on the left side. The left forming part 210 and the right forming part can be injection molded to install the slot 52.

[0039] In other embodiments, the lower mold base 20 is movably mounted with an ejector plate 15, the ejector plate 15 is provided with ejector pins 151, the ejector pins 151 can extend upward to the lower mold core 21; when the ejector plate 15 moves upward, it can be linked to eject the ejector plate 15 upward from the upper surface of the lower mold core 21 to eject the sliding sleeve body 50 from the lower mold core 21 for material discharge.

[0040] In other embodiments of this application, an injection molding method for a coffee machine sliding sleeve is also provided. The injection molding method is applied to the injection mold and includes: Step 1: Provide an injection molding machine; fix the lower mold base 20 to the fixed plate of the injection molding machine, fix the upper mold base 10 to the movable plate of the injection molding machine, and move the movable plate up and down in conjunction with the ejector system; connect the extrusion system of the injection molding machine to the injection port 112; Step 2: Start the ejector system to drive the movable plate to move downwards and move the upper mold base 10 relative to the lower mold base 20 to close the mold; Among them, the upper mold base 10 moves down, which can link the left side slide 22, the right side slide 24, and the rear side slide 28 to form a molding cavity 30, and the left side insert 23 and the right side insert 25 to form a water nozzle forming cavity 40. Furthermore, the front moving part 27 moves in conjunction with the sprue forming insert 271, which is inserted into the sprue forming cavity 40; and the insertion protrusion 111 is inserted into the insertion port 26. Step 3: Start the extrusion system and inject the hot melt slurry from the injection port 112, through the injection channel and injection port 113 into the molding chamber 30 and the water nozzle molding chamber 40; wait 30-60 seconds for cooling and solidification to form the sliding sleeve body 50 with the water inlet 51. Step 4: Drive the upper mold base 10 to move upward for the first time through the ejector system; and through the first inclined rod 12, link the left side insert 23 and the right side insert 25 to move away from the demolding sprue nozzle 51. Through the third inclined rod 13, link the front slide 27 to move forward so that the sprue forming insert 271 can be demolded from the sprue nozzle 511. Through the fourth inclined rod 14, link the rear slide 28 to move backward to demold the rear side of the sliding sleeve body 50. Step 5: Drive the upper mold base 10 to move upward for the second time through the ejector system, and the left slide 22 and right slide 24 move away from the moving demolding sliding sleeve body 50 through the linkage of the first inclined rod 12; Step 6: Drive the ejector plate 15 upward through the ejector system, so that the ejector pin 151 extends upward from the surface of the lower mold core 21, and ejects the sliding sleeve body 50 from the lower mold core 21 and discharges it; Step 7: Repeat steps 2 to 6 to continuously injection mold the sliding sleeve body 50 with water inlet 51 and water outlet 511.

[0041] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: 1. By movably installing a left insert 23 on the left slide 22 and a right insert 25 on the right slide 24, when the left slide 22 and the right slide 24 move relative to each other and approach the molding chamber of the surrounding structure for injection molding of the sliding sleeve body 50, the left insert 23 and the right insert 25 can move relative to each other and approach the water nozzle molding cavity 40 of the surrounding structure for injection molding of the water inlet 51. With this structure, the molding operations of the sliding sleeve body 50 and the water inlet 51 can be completed in the same injection mold, without the need to use CNC milling to process the water inlet 51 and the water inlet 511, thereby further improving the production efficiency of the coffee machine sliding sleeve. 2. Since CNC milling is not required, the surface of the sliding sleeve body 50 can be damaged due to clamping, thereby improving the surface quality of the product. At the same time, the water inlet 51 and water outlet 511 are injection molded by injection mold, which can better control the dimensional and positional accuracy of the water inlet 51 and water outlet 511 compared with CNC milling, thereby further improving the production yield of the coffee machine sliding sleeve. 3. By movably installing the left insert 23 on the left slide 22 and the right insert 25 on the right slide 24, it is not necessary to configure a separate side slide for the injection molding sprue nozzle 51, thus allowing for the layout of the front slide 27 and the sprue forming insert 271; this enables the sprue nozzle 51 and the sprue 511 to be injection molded in one go, thereby further improving production efficiency; moreover, this design does not require increasing the mold blank size, directly expanding the capacity of the molding sprue nozzle 51, achieving an extremely compact mold structure; and, without the need for complex timing control or additional power sources, the filling of complex structures can be achieved solely through the mechanical linkage of mold opening and closing, reducing the mold failure rate and maintenance costs.

[0042] The above are merely preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present invention.

Claims

1. An injection mold for a coffee machine sliding sleeve, comprising an upper mold base (10) and a lower mold base (20) that can be closed together, wherein the upper mold base (10) is provided with an upper mold core (11) at the bottom and the lower mold base (20) is provided with a lower mold core (21) at the top. Its features are: The lower mold base (20) is movably equipped with a left slide (22) and a right slide (24). The left slide (22) is movably equipped with a left insert (23), and the right slide (24) is movably equipped with a right insert (25). When the upper mold base (10) and the lower mold base (20) are closed, the left slide (22) and the right slide (24) can move closer to each other, so that the upper mold core (11), the lower mold core (21), the left slide (22) and the right slide (24) surround the molding chamber (30) for injection molding of the sliding sleeve body; and the left insert (23) and the right insert (25) move closer to each other to surround the water nozzle molding cavity (40) for injection molding of the water inlet, and the water nozzle molding cavity (40) can be connected to the molding chamber (30).

2. The injection mold for a coffee machine sliding sleeve according to claim 1, characterized in that: It also includes a left movable seat (221) and a right movable seat (241) that are movably installed on the lower mold base (20); The left side row position (22) is fixedly installed on the right surface of the left side movable seat (221), and the right side row position (24) is fixedly installed on the left surface of the right side movable seat (241); The left movable seat (221) and the right movable seat (241) are both provided with a first inclined hole (222), and the bottom left and right sides of the upper mold seat (10) are provided with a first inclined rod (12), which is inserted into the first inclined hole (222); When the upper mold base (10) moves down relative to the lower mold base (20), the left slide (22) and the right slide (24) can move synchronously toward the molding cavity (30) through the cooperation of the first inclined rod (12) and the first inclined hole (222).

3. The injection mold for a coffee machine sliding sleeve according to claim 2, characterized in that: Both the left movable seat (221) and the right movable seat (241) are provided with a first slot (223); The first slot (223) of the left movable seat (221) is movably mounted with a first movable plate (224), and the first movable plate (224) is connected to the left insert (23); The first slot (223) of the right movable seat (241) is movably mounted with a second movable plate (225), and the second movable plate (225) is connected to the right insert (25).

4. The injection mold for a coffee machine sliding sleeve according to claim 3, characterized in that: Both the first movable plate (224) and the second movable plate (225) are provided with second oblique holes (226) penetrating their upper and lower surfaces, and the first oblique rod (12) can extend downward through the second oblique hole (226) and the first oblique hole (222) in sequence; The first oblique hole (222) is an oblique hole in the shape of an oblique hole, and the second oblique hole (226) is an oblique hole in the shape of a circular oblique hole; the length of the oblique hole is greater than the diameter of the circular oblique hole, and the diameter of the circular oblique hole is greater than the diameter of the first oblique rod (12); When the upper mold base (10) and the lower mold base (20) are in the mold-closed state, the upper mold base (10) moves up a first distance relative to the lower mold base (20), which can link the first moving plate (224) and the second moving plate (225) to move away from the molding cavity (30) and demold the left insert (23) and the right insert (25); when the upper mold base (10) moves up a second distance relative to the lower mold base (20), it can link the left moving base (221) and the right moving base (241) to move away from the molding cavity (30) and demold the left slide (22) and the right slide (24).

5. The injection mold for a coffee machine sliding sleeve according to claim 3 or 4, characterized in that: The first movable plate (224) and the second movable plate (225) are provided with a first hook (2241) at the bottom, and the left side insert (23) and the right side insert (25) are provided with a second hook (231) at the top. The first hook (2241) can be connected to the second hook (231).

6. The injection mold for a coffee machine sliding sleeve according to claim 5, characterized in that: The left row (22) is provided with an installation notch (227) for movably installing the left side insert (23) and a clearance notch (228) for providing clearance for the first movable plate (224). The right row is provided with an installation notch (227) for movably installing the right side insert (25) and a clearance notch (228) for providing clearance for the first movable plate (224). The first movable plate (224) can extend to the mounting notch (227) through the avoidance notch (228), so that the first movable plate (224) can be connected to the corresponding left side insert (23) and right side insert (25), and the top of the first movable plate (224), the top of the left side insert (23), the top of the right side insert (25), the top of the left side slide (22) and the top of the right side slide (24) are all flush. The top of the left row (22) is equipped with a first limiting plate (229) for limiting the vertical position of the left insert (23), and the top of the right row (24) is equipped with a first limiting plate (229) for limiting the vertical position of the right insert (25).

7. The injection mold for a coffee machine sliding sleeve according to claim 1 or 6, characterized in that: When the upper mold base (10) closes relative to the lower mold base (20), the left slide (22) and the right slide (24) can form the molding insertion port (26). The upper mold core (11) is provided with a molding insertion protrusion (111) that can be inserted into the molding insertion port (26), and the upper mold base (10) is provided with a glue injection channel. The glue injection channel extends upward through the upper surface of the upper mold base (10) to form a glue injection port (112), and extends downward through the lower surface of the insertion protrusion (111) to form a glue injection port (113). When the upper mold base (10) closes relative to the lower mold base (20), the insertion protrusion (111) can be inserted into the molding insertion port (26), so that the injection port (113) is connected to the molding chamber (30).

8. The injection mold for a coffee machine sliding sleeve according to claim 7, characterized in that: It also includes a front slide (27), and the rear side of the front slide (27) is provided with a sprue molding insert (271) that can be inserted into the sprue molding cavity (40) to cooperate with the injection molding inlet. The front slide (27) is mounted on the front movable seat (272) and can be movably mounted on the lower mold base (20) via the front movable seat (272). The front movable seat (272) is provided with a third inclined hole (273), the diameter of which is the same as that of the second inclined hole (226); the upper mold seat (10) is provided with a third inclined rod (13), the diameter of which is the same as that of the first inclined rod (12), and the third inclined rod (13) can be inserted into the third inclined hole (273).

9. The injection mold for a coffee machine sliding sleeve according to claim 8, characterized in that: It also includes a rear slide (28), which is movably mounted on the lower mold base (20) via a rear movable seat (281). The rear slide (28) can be inserted into the molding cavity (30) to cooperate with the injection molding of the sliding sleeve body. The rear movable seat (281) is provided with a fourth oblique hole (282), the diameter of which is the same as that of the third oblique hole (273); the upper mold seat (10) is provided with a fourth oblique rod (14), the diameter of which is the same as that of the third oblique rod (13), and the third oblique rod (13) can be inserted into the fourth oblique hole (282).

10. An injection molding method for a coffee machine sliding sleeve, characterized in that: The injection molding method, applied to the injection mold according to any one of claims 1-9, comprises: Step 1: Provide an injection molding machine; fix the lower mold base (20) to the fixed plate of the injection molding machine, fix the upper mold base (10) to the movable plate of the injection molding machine, and move the movable plate up and down through the push rod system; connect the extrusion system of the injection molding machine to the injection port (112). Step 2: Start the ejector system to drive the movable plate to move downward and move the upper mold base (10) relative to the lower mold base (20) to close the mold; Among them, the upper mold base (10) moves down, which can link the left side slide (22), the right side slide (24), and the rear side slide (28) to form a molding cavity (30), and the left side insert (23) and the right side insert (25) to form a water nozzle molding cavity (40). Furthermore, the front moving part (27) moves in conjunction with the nozzle to insert the nozzle forming pin (271) into the nozzle forming cavity (40); and the insertion protrusion (111) is inserted into the insertion port (26); Step 3: Start the extrusion system and inject the hot melt slurry from the injection port (112), through the injection channel and injection port (113) into the molding chamber (30) and the water nozzle molding chamber (40); wait 30-60 seconds for cooling and solidification to form the sliding sleeve body with the water inlet. Step 4: Drive the upper mold base (10) to move upward for the first time through the ejector system; and through the first inclined rod (12) linking the left side insert (23) and the right side insert (25) to move away from the displacement demolding sprue nozzle, and through the third inclined rod (13) linking the front side slide (27) to move forward so that the sprue forming insert (271) is demolded from the sprue nozzle, and through the fourth inclined rod (14) linking the rear side slide (28) to move backward to demold the rear side of the sliding sleeve body; Step 5: Drive the upper mold base (10) to move upward for the second time through the ejector system, and the left slide (22) and right slide (24) move away from the moving demolding sliding sleeve body through the first inclined rod (12); Step 6: Drive the ejector plate upward through the ejector system, so that the ejector pin extends upward from the surface of the lower mold core (21), and eject the sliding sleeve body from the lower mold core (21) and unload it; Step 7: Repeat steps 2 to 6 to continue injection molding the sliding sleeve body with water inlet and water outlet.

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