Injection mold for producing data collector shell

Abstract

The invention relates to the technical field of injection molds, and discloses an injection mold for producing a data collector shell, the injection mold comprises an injection molding part, the injection molding part comprises a machine body, the upper surface of the machine body is fixedly connected with a screw injection molding device and a mold part through a support, and the mold part comprises a fixed mold plate; and the bottom of the fixed mold plate is fixedly connected with the upper surface of the machine body, a hydraulic unit connected with the upper surface of the machine body is arranged on the side, away from the screw injection molding device, of the fixed mold plate, and a movable mold is fixedly installed at the output end of the hydraulic unit. The injection mold for producing the data collector shell can effectively solve the technical problems that in the prior art, during injection molding, a movable mold and a fixed mold are closed to form a pouring system and a cavity, during mold opening, the movable mold and the fixed mold are separated so as to take out a plastic product, but impurities are easily adhered to the bonding surface of the movable mold and the fixed mold after the movable mold and the fixed mold are used for a long time; and the attaching sealing performance of the movable mold and the fixed mold is influenced.

Description

Technical Field

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

[0002] Injection mold is a tool for producing plastic products, which is mainly composed of concave mold assembly template, concave mold cavity, concave mold core, cavity ejector plate and ejector pin. The working principle of this mold is: the molten plastic is injected into the mold cavity by the injection molding machine under high pressure, and after cooling and solidification, the ejector device in the mold ejects the part from the mold cavity and leaves the mold, and finally the finished product is obtained through subsequent processes such as trimming and punching.

[0003] The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product. However, after long-term use, the joint surface of the movable mold and the fixed mold is prone to adhere to impurities, which affects the fit and sealing of the movable mold and the fixed mold. In order to solve the above technical problems, it is necessary to provide an injection mold for producing a data collector shell. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an injection mold for producing a data acquisition device housing, which can effectively solve the problem in the prior art that during injection molding, the movable mold and the fixed mold are closed to form a casting system and a cavity, and when the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product. However, after long-term use, impurities are easily adhered to the joint surface of the movable mold and the fixed mold, affecting the sealing of the movable mold and the fixed mold.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an injection mold for producing a data collector housing, comprising: An injection molding part, the injection molding part comprises a body, and a screw injection molding machine is fixedly connected to the upper surface of the body through a bracket; The mold part includes a fixed template, the bottom of which is fixedly connected to the upper surface of the machine body, a hydraulic unit connected to the upper surface of the machine body is provided on the side of the fixed template away from the screw injection molding device, a movable mold is fixedly installed on the output end of the hydraulic unit, and a fixed mold matched with the movable mold is provided on the side of the fixed template close to the hydraulic unit; The hydraulic unit is connected to the side of the fixed mold plate through a driving unit arranged on the top thereof, and a cleaning piece is sleeved on the outer surface of the circumference of the output end of the driving unit for removing impurities from the outer surfaces of the fixed mold and the movable mold.

[0006] Furthermore, the nozzle of the screw injection molding machine penetrates the fixed mold plate and extends to the space surrounded by the fixed mold and the movable mold. A lower material bin is provided inside the machine body, and the lower material bin is located directly below the fixed mold and the movable mold.

[0007] Furthermore, a heater is fixedly connected to the upper surface of the body through a support rod, and the heater is sleeved on the circumferential outer surface of the screw injection molding machine, and the circumferential outer surface of the screw injection molding machine is fixedly connected to a feed bin.

[0008] Furthermore, the cleaning part includes a slider, the inner side of which is fixedly connected to the circumferential outer surface of the output end of the driving unit, a straight rod is fixedly connected to the bottom of the slider via a connecting frame, the straight rod is fixedly connected to a brush roller via a spring plate arranged on its side, and two spring plates are provided and distributed up and down with the brush roller as the center.

[0009] Furthermore, a special-shaped cavity is opened inside the movable mold, and an ejector rod and an adjusting rod are slidably connected to the inner wall of the special-shaped cavity respectively. The ejector rod and the adjusting rod are connected by a combining rod. A hollow tube connected to the inside of the special-shaped cavity is arranged on the side of the movable mold away from the fixed mold, and the inner wall of the hollow tube is provided with a strong spring connected to the outer end of the ejector rod.

[0010] Furthermore, the ejector rod and the adjusting rod at one end away from the powerful spring both penetrate the movable mold and extend to the outside, the length of the ejector rod is greater than the length of the adjusting rod, and the end of the ejector rod away from the powerful spring adopts a spherical design.

[0011] Furthermore, a molding hole connected to the interior of the special-shaped cavity is opened on the side of the movable mold close to the fixed mold. The movable mold is connected to the interior of the molding hole through a working cavity opened therein. A gear is rotatably connected to the inner wall of the working cavity, and a sealing block is fixedly connected to the circumferential outer surface of the gear through a connecting rod.

[0012] Furthermore, the movable mold is connected to the working cavity through a built-in cavity therein, the inner wall of the built-in cavity is slidably connected with a built-in block, the outer end of the built-in block is fixedly connected with a tooth plate meshing with the gear, the tooth plate is fixedly connected with a return spring on the side away from the built-in block, the return spring is fixedly connected with a lifting block on one end away from the tooth plate, and a smooth ball is rotatably installed inside the lifting block.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a cleaning part, and the output end of the driving unit drives the slider on the cleaning part to rotate in a circle, and drives the straight rod, the spring plate and the brush roller to rotate synchronously. Since there are two brush rollers in total, the brush rollers can clean the adjacent surfaces of the movable mold and the fixed mold respectively. Among them, the brush roller can not only reciprocate and clean the adjacent surfaces of the movable mold and the fixed mold through rapid rotation, but also, under the action of centrifugal force, the impurities adhered to the brush roller can be automatically thrown out, thereby improving the cleaning effect. During the cleaning process, the brush roller is in close contact with the adjacent surfaces of the movable mold and the fixed mold, and the spring plate can not only play a buffering role on the brush roller, but also improve the bonding strength between the brush roller and the movable mold and the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the mold part of an embodiment of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of a cleaning piece according to an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a three-dimensional partial cross-section of a screw injection molding machine according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of a three-dimensional moving mold according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a three-dimensional partial cross-section of a movable mold according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a multi-angle three-dimensional partial cross-section of a movable mold according to an embodiment of the present invention.

[0016] The numbers in the figure represent: 1, injection molding part; 11, fuselage; 111, lower bin; 112, heater; 12, screw injection molding machine; 121, feed bin; 2, mold part; 21, fixed template; 22, hydraulic unit; 23, movable mold; 231, special-shaped cavity; 2311, ejector rod; 2312, adjustment rod; 2313, combination rod; 232, hollow tube; 2321, strong spring; 233, forming hole; 234, working chamber; 2341, gear; 2342, sealing block; 235, built-in chamber; 2351, built-in block; 2352, tooth plate; 2353, return spring; 2354, lifting block; 2355, smooth ball; 24, fixed mold; 25, driving unit; 26, cleaning part; 261, slider; 262, straight rod; 263, spring plate; 264, brush roller. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] Example: See Figure 1-Figure 7 The present invention provides a technical solution: an injection mold for producing a data collector housing, comprising: An injection molding part 1, the injection molding part 1 comprises a body 11, and a screw injection molding device 12 is fixedly connected to the upper surface of the body 11 through a bracket; The mold part 2 includes a fixed mold plate 21, the bottom of the fixed mold plate 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 the side of the fixed mold plate 21 away from the screw injection molding device 12, a movable mold 23 is fixedly installed on the output end of the hydraulic unit 22, and a fixed mold 24 adapted to the movable mold 23 is provided on the side of the fixed mold plate 21 close to the hydraulic unit 22; The hydraulic unit 22 is connected to the side of the fixed mold plate 21 through a driving unit 25 arranged on the top thereof. 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 from the outer surfaces of the fixed mold 24 and the movable mold 23.

[0020] The nozzle of the screw injection molding machine 12 passes through the fixed mold plate 21 and extends to the space surrounded by the fixed mold 24 and the movable mold 23 . A lower material bin 111 is provided inside the body 11 and is located directly below the fixed mold 24 and the movable mold 23 .

[0021] A heater 112 is fixedly connected to the upper surface of the body 11 via a support rod, and the heater 112 is sleeved on the circumferential outer surface of the screw injection molding device 12 , and the circumferential outer surface of the screw injection molding device 12 is fixedly connected to a feed bin 121 .

[0022] The cleaning member 26 includes a slider 261, the inner side of which is fixedly connected to the circumferential outer surface of the output end of the driving unit 25, a straight rod 262 is fixedly connected to the bottom of the slider 261 through a connecting frame, and the straight rod 262 is fixedly connected to a brush roller 264 through a spring plate 263 arranged on its side, and two spring plates 263 are provided and distributed up and down with the brush roller 264 as the center.

[0023] A special-shaped cavity 231 is opened inside the movable mold 23, and an ejector rod 2311 and an adjusting rod 2312 are slidably connected to the inner wall of the special-shaped cavity 231 respectively. The ejector rod 2311 and the adjusting rod 2312 are connected by a connecting rod 2313. A hollow tube 232 connected to the inside of the special-shaped cavity 231 is arranged on the side of the movable mold 23 away from the fixed mold 24, and the inner wall of the hollow tube 232 is provided with a strong spring 2321 connected to the outer end of the ejector rod 2311.

[0024] The ejector rod 2311 and the adjusting rod 2312 at one end away from the strong spring 2321 both penetrate the movable mold 23 and extend to the outside. The length of the ejector rod 2311 is greater than the length of the adjusting rod 2312. The end of the ejector rod 2311 away from the strong spring 2321 adopts a spherical design.

[0025] A molding hole 233 connected to the interior of the special-shaped cavity 231 is provided on the side of the movable mold 23 close to the fixed mold 24. The movable mold 23 is connected to the interior of the molding hole 233 through a working cavity 234 provided therein. A gear 2341 is rotatably connected to the inner wall of the working cavity 234. A sealing block 2342 is fixedly connected to the circumferential outer surface of the gear 2341 via a connecting rod.

[0026] The movable mold 23 is connected with the working cavity 234 through the built-in cavity 235 therein. The inner wall of the built-in cavity 235 is slidably connected with a built-in block 2351. The outer end of the built-in block 2351 is fixedly connected with a tooth plate 2352 meshing with the gear 2341. The tooth plate 2352 is fixedly connected with a return spring 2353 on the side away from the built-in block 2351. The end of the return spring 2353 away from the tooth plate 2352 is fixedly connected with a lifting block 2354, and a smooth ball 2355 is rotatably installed inside the lifting block 2354.

[0027] refer to Figure 1-7The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable mold plate of the injection molding machine, and the fixed mold is installed on the fixed mold plate of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product. However, after long-term use, the joint surface of the movable mold and the fixed mold is prone to adhere to impurities, which affects the fit and sealing of the movable mold and the fixed mold. In order to solve the above technical problems, it is necessary to provide an injection mold for producing a data collector housing; In order to overcome the above-mentioned defects, the present invention designs an injection mold for producing a data collector housing.

[0028] Injection molding process: First, the raw materials are dispersed and melted by an external stirring device to make them fully mixed. Then, the molten raw materials are poured into the feed bin 121 of the injection molding part 1. Subsequently, the raw materials are pressurized by the internal screw of the screw injection molding device 12 and injected into the mold cavity surrounded by the movable mold 23 and the fixed mold 24 (the heater 112 continuously heats it). After cooling and solidification, the output end of the hydraulic unit 22 drives the movable 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 lower bin 111.

[0029] It is worth noting that the mating surfaces of the movable mold 23 and the fixed mold 24 are prone to be adhered with impurities after long-term use. In this regard, the present application is provided with a cleaning piece 26: After the movable mold 23 and the fixed mold 24 are separated from each other, the driving unit 25 is started after both are cooled. The output end of the driving unit 25 drives the slider 261 on the cleaning member 26 to rotate in a circle, and drives the straight rod 262, the spring plate 263 and the brush roller 264 to rotate synchronously. Since there are two brush rollers 264, the brush rollers 264 can clean the adjacent surfaces of the movable mold 23 and the fixed mold 24 respectively. Among them, the brush roller 264 can not only reciprocate and clean the adjacent surfaces of the movable mold 23 and the fixed mold 24 by rapid rotation, but also, under the action of centrifugal force, the impurities adhered to the brush roller 264 can be automatically thrown out to improve the cleaning effect. During the cleaning process, the brush roller 264 is in contact with the adjacent surfaces of the movable mold 23 and the fixed mold 24, and the spring plate 263 can not only play a buffering role on the brush roller 264, but also improve the bonding strength between the brush roller 264 and the movable mold 23 and the fixed mold 24.

[0030] In actual applications, plastic products will be formed in the mold cavities of the movable mold 23 and the fixed mold 24. At the same time, not only is the ejector rod 2311 hidden in the molding hole 233, but the required plastic product edges will also be formed in the molding hole 233. However, there is a movable gap between the molding hole 233 and the ejector rod 2311, and the plastic product edges often have different lengths, flash, etc.

[0031] When the movable mold 23 approaches the fixed mold 24: When the smooth ball 2355 begins 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 toward the inside of the movable mold 23, driving the lifting block 2354 to move toward the side of the toothed plate 2352, and the return spring 2353 is elastically deformed under pressure. 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 slide inward along the inner wall of the built-in cavity 235, and the toothed plate 2352 drives the gear 2341 to rotate at a small angle (the toothed plate 2352 only needs to slide a short distance), driving the circumferential outer surface of the sealing block 2342 to fit against the circumferential outer surface of the ejector rod 2311, until the smooth ball 2355 is completely hidden in the movable mold 23, and the return spring 2353 is compressed to the maximum (continuously storing force). Next, the outer surface of the fixed mold 24 begins to squeeze the adjusting rod 2312, driving the ejector rod 2311 and the combining rod 2313 to slide along the inner wall of the special-shaped cavity 231, and the strong spring 2321 begins to be further compressed until the fixed mold 24 and the movable mold 23 are close to being closed, and the spherical surface of the ejector rod 2311 begins to separate from the sealing block 2342. Under the elastic force of the reset spring 2353, the sealing block 2342 begins to rotate rapidly to cut off the forming hole 233, dividing the "forming hole 233 channel into two parts", one part is used to hide the ejector rod 2311 (the gap between the two will not contain plastic and will not affect the normal sliding out), and the other part is used for the edge molding of the plastic product. The two do not interfere with each other, and the edge lengths of the formed plastic products are consistent.

[0032] When the movable mold 23 is away from the fixed mold 24: After the plastic product is cooled, the movable mold 23 gradually leaves the fixed mold 24, and the fixed mold 24 and the adjusting rod 2312 begin to separate. Under the elastic force of the strong spring 2321, the ejector rod 2311 tends to slide outward. However, since the sealing block 2342 has not been reset, the ejector rod 2311 can only maintain a constant and motionless state. When the fixed mold 24 and the smooth ball 2355 are gradually separated, the built-in block 2351 adopts a magnetic design, and a magnetic block with the same magnetic properties as the built-in block 2351 is installed at the bottom of the inner wall of the built-in cavity 235. Under the magnetic force of the magnetic block, the built-in block 2351 and the tooth plate 2352 are driven to slide outward along the inner wall of the built-in cavity 235, and the tooth plate 2352 drives the gear 2341 to slowly reset. At the same time, the reset spring 2353 drives the lifting block 2354 and the smooth ball 2355 to slowly reset until the sealing block 2342 is completely separated from the spherical surface of the ejector rod 2311, and the ejector rod 2311 quickly pops outward. With the help of the separation process of the movable mold 23 and the fixed mold 24, the ejector rod 2311 is ejected by the stored force, so that the plastic product is demolded.

[0033] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An injection mold for producing a data collector housing, characterized in that: include: An injection molding part (1), the injection molding part (1) comprising a body (11), an upper surface of the body (11) being fixedly connected to a screw injection molding device (12) via a bracket; A mold part (2), the mold part (2) comprising a fixed mold plate (21), the bottom of the fixed mold plate (21) being 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) being provided on a side of the fixed mold plate (21) away from the screw injection molding device (12), a movable mold (23) being fixedly installed on an output end of the hydraulic unit (22), and a fixed mold (24) matching the movable mold (23) being provided on a side of the fixed mold plate (21) close to the hydraulic unit (22); The hydraulic unit (22) is connected to the side of the fixed mold plate (21) via a driving unit (25) arranged on the top thereof, and a cleaning member (26) is sleeved on the outer surface of the circumference of the output end of the driving unit (25) for cleaning impurities on the outer surfaces of the fixed mold (24) and the movable mold (23); The movable mold (23) has a special-shaped cavity (231) formed inside, and an ejector rod (2311) and an adjusting rod (2312) are slidably connected to the inner wall of the special-shaped cavity (231), respectively, and the ejector rod (2311) and the adjusting rod (2312) are connected via a coupling rod (2313). A hollow tube (232) communicating with the inside of the special-shaped cavity (231) is provided on a side of the movable mold (23) away from the fixed mold (24), and 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).

2. The injection mold for producing a data collector housing according to claim 1, characterized in that: The nozzle of the screw injection molding machine (12) penetrates the fixed mold plate (21) and extends into the space enclosed by the fixed mold (24) and the movable mold (23); a lower material bin (111) is provided inside the machine body (11), and the lower material bin (111) is located directly below the fixed mold (24) and the movable mold (23).

3. The injection mold for producing a data collector housing according to claim 1, characterized in that: The upper surface of the machine body (11) is fixedly connected to a heater (112) via a support rod, and the heater (112) is sleeved on the circumferential outer surface of the screw injection molding machine (12), and the circumferential outer surface of the screw injection molding machine (12) is fixedly connected to a feed bin (121).

4. The injection mold for producing a data collector housing according to claim 1, characterized in that: The cleaning member (26) comprises a slider (261), the inner side of which 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 bottom of the slider (261) via a connecting frame, the straight rod (262) is fixedly connected to a brush roller (264) via a spring plate (263) arranged on the side thereof, and two spring plates (263) are provided and are distributed up and down with the brush roller (264) as the center.

5. The injection mold for producing a data collector housing according to claim 1, characterized in that: The ejector rod (2311) and the adjusting rod (2312) at one end away from the strong spring (2321) both penetrate the movable mold (23) and extend to the outside; the length of the ejector rod (2311) is greater than the length of the adjusting rod (2312); and the end of the ejector rod (2311) away from the strong spring (2321) adopts a spherical design.

6. The injection mold for producing a data collector housing according to claim 1, characterized in that: A molding hole (233) communicating with the interior of the special-shaped cavity (231) is provided on a side of the movable mold (23) close to the fixed mold (24); the movable mold (23) is connected to the interior of the molding hole (233) via a working cavity (234) provided therein; 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 circumferential outer surface of the gear (2341) via a connecting rod.

7. The injection mold for producing a data collector housing according to claim 5, characterized in that: The movable mold (23) is connected to the working cavity (234) via a built-in cavity (235) therein; a built-in block (2351) is slidably connected to the inner wall of the built-in cavity (235); a tooth plate (2352) meshing with a gear (2341) is fixedly connected to the outer end of the built-in block (2351); a return spring (2353) is fixedly connected to the side of the tooth plate (2352) away from the built-in block (2351); a lifting block (2354) is fixedly connected to the end of the return spring (2353) away from the tooth plate (2352); and a smooth ball (2355) is rotatably installed inside the lifting block (2354).

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