An injection mold for producing the housing of a data collector

Abstract

The present invention relates to the technical field of injection molds, and discloses an injection mold for producing a housing of a production data collector, including an injection part, the injection part includes a fuselage, the upper surface of the fuselage is fixedly connected with a screw injector through a bracket, a mold part, the mold part includes a fixed template, the bottom of the fixed template is fixedly connected with the upper surface of the fuselage, a hydraulic unit connected to the upper surface of the fuselage is arranged on one side of the fixed template away from the screw injector, and a moving mold is fixedly installed at the output end of the hydraulic unit. This injection mold for producing a housing of a production data collector can effectively solve the problem in the prior art that when injection molding, the moving mold and the fixed mold are closed to form a gating system and a cavity, and when opening the mold, the moving mold and the fixed mold are separated to take out plastic products. However, after long-term use of the moving mold and the fixed mold, impurities are likely to adhere to the joint surface between the two, affecting the sealing performance of the fit between the moving mold and the fixed mold.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold for the shell of a production data collector. Background Art

[0002] An injection mold is a tool for producing plastic products, which mainly consists of a female die combination template, a female die cavity, a female die core, a cavity ejector plate, an ejector pin, etc. The working principle of this mold is as follows: the molten plastic is injected into the mold cavity under high pressure by an injection molding machine. After cooling and solidifying, the ejector device in the mold ejects the workpiece from the mold cavity and leaves the mold. Finally, through subsequent processes such as trimming and punching, the finished product is obtained.

[0003] An injection mold is composed of a moving die and a stationary die. The moving die is installed on the moving template of the injection molding machine, and the stationary die is installed on the fixed template of the injection molding machine. During injection molding, the moving die and the stationary die are closed to form a gating system and a cavity. When the mold is opened, the moving die and the stationary die are separated to take out the plastic product. However, after long-term use, impurities are likely to adhere to the joint surface between the two, affecting the fitting tightness between the moving die and the stationary die. To solve the above technical problems, it is necessary to provide an injection mold for the shell of a production data collector. Summary of the Invention

[0004] In view of the above-mentioned drawbacks of the prior art, the present invention provides an injection mold for the shell of a production data collector, which can effectively solve the problem in the prior art that during injection molding, the moving die and the stationary die are closed to form a gating system and a cavity, and when the mold is opened, the moving die and the stationary die are separated to take out the plastic product, but after long-term use, impurities are likely to adhere to the joint surface between the two, affecting the fitting tightness between the moving die and the stationary die.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] The present invention provides an injection mold for the shell of a production data collector, including:

[0007] An injection part, the injection part includes a body, and a screw injector is fixedly connected to the upper surface of the body through a bracket;

[0008] A mold part, the mold part includes a fixed template, the bottom of the fixed template is fixedly connected to the upper surface of the body, a hydraulic unit connected to the upper surface of the body is provided on one side of the fixed template away from the screw injector, a moving die is fixedly installed at the output end of the hydraulic unit, and a stationary die adapted to the moving die is arranged on one side of the fixed template close to the hydraulic unit;

[0009] Among them, the hydraulic unit is connected to the side of the fixed template through a drive unit arranged on its top. A cleaning member is sleeved on the circumferential outer surface of the output end of the drive unit for removing impurities on the outer surfaces of the fixed mold and the movable mold.

[0010] Furthermore, the nozzle of the screw injection molding machine penetrates through the fixed template and extends into the space enclosed by the fixed mold and the movable mold. A blanking bin is provided inside the fuselage, and this blanking bin is located directly below the fixed mold and the movable mold.

[0011] Furthermore, a heater is fixedly connected to the upper surface of the fuselage through a support rod, and this heater is sleeved on the circumferential outer surface of the screw injection molding machine. A feed bin is fixedly communicated with the circumferential outer surface of the screw injection molding machine.

[0012] Furthermore, the cleaning member includes a slider. The inner side of the slider is fixedly connected to the circumferential outer surface of the output end of the drive unit. A straight rod is fixedly connected to the lower side of the slider through a connecting frame. The straight rod is fixedly connected to a brush roller through a spring plate arranged on its side. There are two spring plates and they are distributed up and down with the brush roller as the center.

[0013] Furthermore, a special-shaped cavity is provided inside the movable mold. A ejector rod and an adjusting rod are respectively slidably connected to the inner wall of the special-shaped cavity. The ejector rod and the adjusting rod are connected through a combined rod. A hollow tube communicating with the inside of the special-shaped cavity is provided on the side of the movable mold away from the fixed mold. A strong spring connected to the outer end of the ejector rod is provided on the inner wall of the hollow tube.

[0014] Furthermore, both ends of the ejector rod and the adjusting rod away from the strong spring penetrate through the movable mold and extend to the outside. The length of the ejector rod is greater than that of the adjusting rod. The end of the ejector rod away from the strong spring adopts a spherical design.

[0015] Furthermore, a forming hole communicating with the inside of the special-shaped cavity is provided on the side of the movable mold close to the fixed mold. The movable mold is connected to the inside of the forming hole through a working cavity provided inside it. A gear is rotatably connected to the inner wall of the working cavity. A sealing block is fixedly connected to the circumferential outer surface of the gear through a connecting rod.

[0016] Furthermore, the movable mold is connected to the working cavity through an internal cavity provided inside it. An internal block is slidably connected to the inner wall of the internal cavity. A rack meshing with the gear is fixedly connected to the outer end of the internal block. A return spring is fixedly connected to the side of the rack away from the internal block. A lifting block is fixedly connected to the end of the return spring away from the rack, and a smooth ball is rotatably installed inside the lifting block.

[0017] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0018] The present invention is provided with a cleaning member. The output end of the driving unit drives the slider on the cleaning member to rotate circumferentially, driving the straight rod, the elastic plate, and the brush roller to rotate synchronously. Since there are two brush rollers in total, the brush rollers can respectively clean the adjacent surfaces of the moving mold and the fixed mold. Among them, the brush roller can not only reciprocally clean the adjacent surfaces of the moving mold and the fixed mold by rotating rapidly, but also, under the action of centrifugal force, the impurities adhered to the brush roller can be automatically thrown out, improving the cleaning effect. During the cleaning process, the brush roller is in fitting contact with the adjacent surfaces of the moving mold and the fixed mold, and the elastic plate can not only play a buffering role for the brush roller, but also improve the fitting strength between the brush roller and the moving mold and the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the mold part of an embodiment of the present invention;

[0022] Figure 3 is a three-dimensional structural schematic diagram of the cleaning member of an embodiment of the present invention;

[0023] Figure 4 is a structural schematic diagram of a partial cross-section of the screw injector in an embodiment of the present invention;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the moving mold in an embodiment of the present invention;

[0025] Figure 6 is a structural schematic diagram of a partial cross-section of the moving mold in an embodiment of the present invention;

[0026] Figure 7 is a structural schematic diagram of a partial cross-section of the moving mold from multiple angles in an embodiment of the present invention.

[0027] The reference numerals in the figure respectively represent: 1. Injection molding part; 11. Machine body; 111. Hopper; 112. Heater; 12. Screw injection molding machine; 121. Feed bin; 2. Mold part; 21. Fixed template; 22. Hydraulic unit; 23. Moving mold; 231. Special-shaped cavity; 2311. Ejector rod; 2312. Adjusting rod; 2313. Connecting rod; 232. Hollow tube; 2321. Strong spring; 233. Forming hole; 234. Working cavity; 2341. Gear; 2342. Sealing block; 235. Built-in cavity; 2351. Built-in block; 2352. Rack; 2353. Return spring; 2354. Lifting block; 2355. Smooth ball; 24. Fixed mold; 25. Driving unit; 26. Cleaning part; 261. Slide block; 262. Straight rod; 263. Elastic plate; 264. Brush roller. Detailed implementation mode

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] Embodiment: Please refer to Figures 1-7 , the present invention provides a technical solution: an injection mold for manufacturing the housing of a production data collector, including:

[0031] An injection molding part 1, the injection molding part 1 includes a machine body 11, and a screw injection molding machine 12 is fixedly connected to the upper surface of the machine body 11 through a bracket;

[0032] A mold part 2, the mold part 2 includes a fixed template 21, the bottom of the fixed template 21 is fixedly connected to the upper surface of the machine body 11, a hydraulic unit 22 connected to the upper surface of the machine body 11 is provided on one side of the fixed template 21 away from the screw injection molding machine 12, a moving mold 23 is fixedly installed at the output end of the hydraulic unit 22, and a fixed mold 24 adapted to the moving mold 23 is arranged on one side of the fixed template 21 close to the hydraulic unit 22;

[0033] Wherein, the hydraulic unit 22 is connected to the side surface of the fixed template 21 through a driving unit 25 arranged on its top, and a cleaning part 26 is sleeved on the circumferential outer surface of the output end of the driving unit 25 for removing impurities on the outer surfaces of the fixed mold 24 and the moving mold 23.

[0034] The nozzle of the screw injection device 12 penetrates through the fixed template 21 and extends into the space enclosed by the fixed mold 24 and the moving mold 23. A blanking bin 111 is provided inside the fuselage 11, and the blanking bin 111 is located directly below the fixed mold 24 and the moving mold 23.

[0035] A heater 112 is fixedly connected to the upper surface of the fuselage 11 through a support rod, and the heater 112 is sleeved on the outer circumferential surface of the screw injection device 12. An inlet bin 121 is fixedly communicated with the outer circumferential surface of the screw injection device 12.

[0036] The cleaning member 26 includes a slider 261. The inner side of the slider 261 is fixedly connected to the outer circumferential surface of the output end of the driving unit 25. A straight rod 262 is fixedly connected to the lower part of the slider 261 through a connecting frame. The straight rod 262 is fixedly connected to a brush roller 264 through an elastic plate 263 provided on its side. There are two elastic plates 263 and they are distributed up and down with the brush roller 264 as the center.

[0037] A special-shaped cavity 231 is provided inside the moving mold 23. A ejector rod 2311 and an adjusting rod 2312 are respectively slidably connected to the inner wall of the special-shaped cavity 231. The ejector rod 2311 and the adjusting rod 2312 are connected by a connecting rod 2313. A hollow tube 232 communicating with the inside of the special-shaped cavity 231 is provided on the side of the moving mold 23 away from the fixed mold 24. A strong spring 2321 connected to the outer end of the ejector rod 2311 is provided on the inner wall of the hollow tube 232.

[0038] One ends of the ejector rod 2311 and the adjusting rod 2312 away from the strong spring 2321 both penetrate through the moving mold 23 and extend to the outside. The length of the ejector rod 2311 is greater than the length of the adjusting rod 2312. One end of the ejector rod 2311 away from the strong spring 2321 adopts a spherical design.

[0039] A forming hole 233 communicating with the inside of the special-shaped cavity 231 is provided on the side of the moving mold 23 close to the fixed mold 24. The moving mold 23 is communicated with the inside of the forming hole 233 through a working cavity 234 provided inside it. A gear 2341 is rotatably connected to the inner wall of the working cavity 234. A sealing block 2342 is fixedly connected to the outer circumferential surface of the gear 2341 through a connecting rod.

[0040] The moving mold 23 is communicated with the working cavity 234 through an internal cavity 235 provided inside it. An internal block 2351 is slidably connected to the inner wall of the internal cavity 235. A toothed plate 2352 meshing with the gear 2341 is fixedly connected to the outer end of the internal block 2351. A return spring 2353 is fixedly connected to the side of the toothed plate 2352 away from the internal block 2351. A lifting block 2354 is fixedly connected to one end of the return spring 2353 away from the toothed plate 2352. A smooth ball 2355 is rotatably installed inside the lifting block 2354.

[0041] Reference Figures 1-7, the injection mold consists of a moving mold and a fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the moving mold and the fixed mold are closed to form a gating system and a cavity. When the mold is opened, the moving mold and the fixed mold are separated to remove the plastic product. However, after long-term use, impurities are likely to adhere to the joint surface between the moving mold and the fixed mold, affecting the fitting tightness between the moving mold and the fixed mold. To solve the above technical problems, it is necessary to provide an injection mold for the shell of a production data collector;

[0042] To overcome the above existing defects, the present invention designs an injection mold for the shell of a production data collector.

[0043] Injection molding process:

[0044] First, the raw materials are dispersed and melted by an external stirring device to make them fully mixed. Then, the melted raw materials are poured into the feed bin 121 of the injection part 1. Subsequently, the raw materials are injected into the mold cavity formed by the moving mold 23 and the fixed mold 24 under the pressure of the internal screw of the screw injector 12 (the heater 112 continuously heats it). After cooling and solidifying, the output end of the hydraulic unit 22 drives the moving mold 23 to separate from the fixed mold 24. The plastic product after injection molding is automatically separated under the combined action of the ejector rod 2311 and gravity and falls into the blanking bin 111.

[0045] It should be noted that impurities are likely to adhere to the joint surface between the moving mold 23 and the fixed mold 24 after long-term use. For this reason, this application is provided with a cleaning part 26:

[0046] After the moving mold 23 and the fixed mold 24 are separated from each other and both are cooled, the driving unit 25 is started. The output end of the driving unit 25 drives the slider 261 on the cleaning part 26 to rotate in a circle, driving the straight rod 262, the elastic plate 263 and the brush roller 264 to rotate synchronously. Since there are two brush rollers 264 in total, the brush rollers 264 can respectively clean the adjacent surfaces of the moving mold 23 and the fixed mold 24. Among them, the brush roller 264 can not only reciprocally clean the adjacent surfaces of the moving mold 23 and the fixed mold 24 by rotating quickly, but also under the action of centrifugal force, the impurities adhered to the brush roller 264 can be automatically thrown out, improving the cleaning effect. During the cleaning process, the brush roller 264 is in fitting contact with the adjacent surfaces of the moving mold 23 and the fixed mold 24. The elastic plate 263 can not only play a buffering role for the brush roller 264, but also improve the fitting strength between the brush roller 264 and the moving mold 23 and the fixed mold 24.

[0047] In practical applications, plastic products are formed in the cavities of the moving mold 23 and the fixed mold 24. At the same time, not only the ejector rod 2311 is hidden in the forming hole 233, but also the required plastic product trimming is formed in the forming hole 233. However, there is a moving gap between the forming hole 233 and the ejector rod 2311, and the plastic product trimming often has uneven lengths, flash and other situations.

[0048] When the moving mold 23 approaches the fixed mold 24:

[0049] When the smooth ball 2355 starts to contact the fixed mold 24, the fixed mold 24 generates a thrust on the smooth ball 2355, driving the smooth ball 2355 to move inside the moving mold 23, driving the lifting block 2354 to move towards the side of the toothed plate 2352, and the return spring 2353 is compressed elastically. At the same time, the elastic force of the return spring 2353 acts on the toothed plate 2352, and the toothed plate 2352 drives the built-in block 2351 to have a tendency to slide inwards along the inner wall of the built-in cavity 235. The toothed plate 2352 drives the gear 2341 to rotate by a small angle (the toothed plate 2352 only needs to slide a short distance), driving the outer circumferential surface of the sealing block 2342 to fit on the outer circumferential surface of the ejector rod 2311 until the smooth ball 2355 is completely hidden in the moving mold 23, and the compression amount of the return spring 2353 is the largest (constantly storing energy). Then, the outer surface of the fixed mold 24 starts to squeeze the adjusting rod 2312, driving the ejector rod 2311 and the connecting rod 2313 to slide along the inner wall of the special-shaped cavity 231, and the strong spring 2321 starts to be further compressed. Until the fixed mold 24 and the moving mold 23 are close to closing, the spherical surface of the ejector rod 2311 starts to separate from the sealing block 2342. Under the elastic force of the return spring 2353, the sealing block 2342 starts to rotate quickly to cut off the forming hole 233, dividing the "forming hole 233 channel into two parts". One part is used for the hiding of the ejector rod 2311 (the combined gap between the two will not contain plastic and does not affect normal sliding out), and the other part is used for the forming of the plastic product trimming. The two do not interfere with each other, and the length of the formed plastic product trimming is consistent.

[0050] When the moving mold 23 moves away from the fixed mold 24:

[0051] After the plastic product is cooled, the moving mold 23 gradually moves away from the fixed mold 24, and the fixed mold 24 and the adjusting rod 2312 begin to separate. Under the elastic force of the powerful spring 2321, the ejector rod 2311 has a tendency to slide outwards. However, since the sealing block 2342 has not been reset, the ejector rod 2311 can only remain in a constant stationary state. When the fixed mold 24 and the smooth ball 2355 gradually separate, the built-in block 2351 is magnetically designed. At the bottom of the inner wall of the built-in cavity 235, there is a magnetic block with the same magnetism as the built-in block 2351. Under the magnetic force of the magnetic block, the built-in block 2351 and the toothed plate 2352 slide outwards along the inner wall of the built-in cavity 235. The toothed plate 2352 drives the gear 2341 to start slowly resetting. At the same time, the reset spring 2353 drives the lifting block 2354 and the smooth ball 2355 to slowly reset. When the sealing block 2342 completely separates from the spherical surface of the ejector rod 2311, the ejector rod 2311 quickly pops outwards. By means of the separation process of the moving mold 23 and the fixed mold 24, the energy storage and ejection of the ejector rod 2311 are realized, and the plastic product is demolded.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An injection mold for producing the housing of a data collector, characterized in that, Including: An injection molding section (1), the injection molding section (1) includes a machine body (11), and a screw injector (12) is fixedly connected to the upper surface of the machine body (11) through a bracket; A mold section (2), the mold section (2) includes a fixed template (21), the bottom of the fixed template (21) is fixedly connected to the upper surface of the machine body (11), a hydraulic unit (22) connected to the upper surface of the machine body (11) is provided on one side of the fixed template (21) away from the screw injector (12), a moving mold (23) is fixedly installed at the output end of the hydraulic unit (22), and a stationary mold (24) adapted to the moving mold (23) is arranged on one side of the fixed template (21) close to the hydraulic unit (22); Wherein, the hydraulic unit (22) is connected to the side surface of the fixed template (21) through a driving unit (25) arranged on its top, and a cleaning member (26) is sleeved on the outer surface of the circumference of the output end of the driving unit (25) for removing impurities on the outer surfaces of the stationary mold (24) and the moving mold (23). The cleaning member (26) includes a slider (261), a straight rod (262) is fixedly connected to the lower part of the slider (261) through a connecting frame, and a brush roller (264) is fixedly connected to the straight rod (262) through an elastic plate (263) arranged on its side surface. There are two elastic plates (263) and they are distributed up and down with the brush roller (264) as the center; A special-shaped cavity (231) is formed inside the moving mold (23), a ejector rod (2311) and an adjusting rod (2312) are respectively slidably connected to the inner wall of the special-shaped cavity (231), the ejector rod (2311) and the adjusting rod (2312) are connected through a connecting rod (2313), a hollow tube (232) communicating with the inside of the special-shaped cavity (231) is arranged on one side of the moving mold (23) away from the stationary mold (24), and a strong spring (2321) connected to the outer end of the ejector rod (2311) is arranged on the inner wall of the hollow tube (232); A forming hole (233) communicating with the inside of the special-shaped cavity (231) is formed on one side of the moving mold (23) close to the stationary mold (24), the moving mold (23) is connected to the inside of the forming hole (233) through a working cavity (234) formed inside it, a gear (2341) is rotatably connected to the inner wall of the working cavity (234), and a sealing block (2342) is fixedly connected to the outer surface of the circumference of the gear (2341) through a connecting rod; The moving mold (23) is connected to the working cavity (234) through an internal cavity (235) formed inside it, an internal block (2351) is slidably connected to the inner wall of the internal cavity (235), a toothed plate (2352) meshing with the gear (2341) is fixedly connected to the outer end of the internal block (2351), a return spring (2353) is fixedly connected to one side of the toothed plate (2352) away from the internal block (2351), a lifting block (2354) is fixedly connected to one end of the return spring (2353) away from the toothed plate (2352), and a smooth ball (2355) is rotatably installed inside the lifting block (2354).

2. The injection mold for manufacturing the housing of a production data collector according to claim 1, wherein: The nozzle of the screw injector (12) penetrates through the fixed template (21) and extends into the space enclosed by the fixed mold (24) and the moving mold (23). A blanking bin (111) is provided inside the fuselage (11), and the blanking bin (111) is located directly below the fixed mold (24) and the moving mold (23).

3. An injection mold for manufacturing the housing of a production data collector according to claim 1, characterized in that: A heater (112) is fixedly connected to the upper surface of the fuselage (11) through a support rod, and the heater (112) is sleeved on the outer circumferential surface of the screw injector (12). An inlet bin (121) is fixedly communicated with the outer circumferential surface of the screw injector (12).

4. An injection mold for manufacturing the housing of a production data collector according to claim 1, wherein: The inner side of the slider (261) is fixedly connected to the outer circumferential surface of the output end of the driving unit (25).

5. An injection mold for manufacturing the housing of a production data collector according to claim 1, wherein: One ends of the ejector rod (2311) and the adjusting rod (2312) away from the strong spring (2321) penetrate through the moving mold (23) and extend to the outside. The length of the ejector rod (2311) is greater than that of the adjusting rod (2312). One end of the ejector rod (2311) away from the strong spring (2321) is designed with a spherical surface.

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