Adjustable temperature control injection molding machine screw

Abstract

The utility model discloses an adjustable temperature control injection molding machine screw, which comprises a feeding channel, a flow control mechanism and a measuring mechanism, the outlet of the feeding channel is communicated with an injection molding cylinder, and the side wall of the outlet of the feeding channel is provided with a slot; the flow control structure comprises a guide rail, a variable frequency motor arranged on the side wall of the guide rail, a threaded rod arranged at the output end of the variable frequency motor, a threaded block matched with the threaded rod and a baffle arranged on the side wall of the threaded block. According to the utility model, the threaded rod is controlled by the variable frequency motor to rotate, so that the threaded block pushes the baffle plate to be inserted into the slot under the limiting guide of the guide rail, and then the outlet of the feeding channel is blocked and the flow of the outlet is adjusted; the purpose of accurately controlling the feeding flow is achieved, operation is easy, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, specifically to an adjustable temperature-controlled injection molding machine screw. Background Technology

[0002] The screw compression ratio of an injection molding machine refers to the ratio of the volume of one screw channel in the feeding section to the volume of the last screw channel in the homogenization section. It is directly proportional to the degree of plasticization of the plastic. Different plastic materials have different melt flow and expansion properties. A suitable compression ratio can make the plastic material uniformly plasticized and compacted during the injection molding process, resulting in more stable product quality.

[0003] Most existing technologies use different sizes of injection molding machines and screws for different types of plastic materials, resulting in poor applicability. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the use of the above and / or adjustable temperature control injection molding machine screw, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide an adjustable temperature-controlled injection molding machine screw. By controlling the rotation of the screw rod with a variable frequency motor, the screw block is guided by the guide rail to push the baffle into the slot, thereby blocking the outlet of the feeding channel, adjusting the outlet flow, and achieving precise control of the feeding flow. It is simple to operate and has a wide range of applications.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] Adjustable temperature-controlled injection molding machine screw, comprising:

[0009] A feeding channel, the outlet of which is connected to a plastic injection cylinder, and a slot is provided on the side wall of the outlet of the feeding channel;

[0010] A flow control mechanism, comprising a guide rail, a variable frequency motor disposed on the side wall of the guide rail, a threaded rod disposed on the output end of the variable frequency motor, a threaded block cooperating with the threaded rod, and a baffle disposed on the side wall of the threaded block, wherein the baffle is inserted along a slot;

[0011] The measuring mechanism includes a transparent optical disc disposed on the shaft of a threaded rod and a photoelectric switch that cooperates with the transparent optical disc.

[0012] As a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, the outer wall of the injection molding cylinder is provided with a protective shell, and the injection molding screw is provided inside the injection molding cylinder.

[0013] As a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, an injection driving motor is provided on the outer wall of the injection cylinder, and the output end of the injection driving motor is fixedly connected to the injection screw.

[0014] In a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, the baffle is a rectangular plate and the feeding channel has a rectangular cross-section.

[0015] As a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, a sealing strip is provided on the outer periphery of the baffle, and the sealing strip is made of high-temperature resistant rubber.

[0016] As a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, a connecting rod is provided on the side wall of the guide rail, and the connecting rod is fixedly connected to the side wall of the protective shell.

[0017] As a preferred embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model, the side wall of the transparent disc is circumferentially distributed with light-transmitting holes, the light source of the photoelectric switch is located on one side of the transparent disc, and the receiving end of the photoelectric switch is located on the other side of the transparent disc.

[0018] Compared with the prior art, the advantages of this utility model are: the adjustable temperature control injection molding machine screw, through the frequency conversion motor controlling the rotation of the screw rod, causes the screw block to push the baffle into the slot under the limit guidance of the guide rail, thereby blocking the outlet of the feeding channel, adjusting the outlet flow, achieving the purpose of precise control of the feeding flow, simple operation, and wide applicability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the adjustable temperature-controlled injection molding machine screw of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the adjustable temperature-controlled injection molding machine screw of this utility model;

[0022] Figure 3 This is a schematic diagram of the flow control mechanism of the adjustable temperature-controlled injection molding machine screw according to this utility model.

[0023] 100. Feeding channel; 110. Protective housing; 101. Slot; 120. Injection molding cylinder; 130. Injection molding screw; 131. Injection molding drive motor; 200. Flow control mechanism; 210. Guide rail; 220. Variable frequency motor; 230. Threaded rod; 240. Threaded block; 250. Baffle; 251. Sealing strip; 211. Connecting rod; 300. Measuring mechanism; 310. Transparent disc; 320. Photoelectric switch. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure will not be enlarged to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

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

[0027] This utility model provides an adjustable temperature-controlled injection molding machine screw. The screw rod is rotated by a variable frequency motor, which causes the screw block to push the baffle into the slot under the limit guidance of the guide rail. This blocks the outlet of the feeding channel, adjusts the outlet flow, and achieves the purpose of precise control of the feeding flow. It is simple to operate and has a wide range of applications.

[0028] Figures 1-3 The diagram shown is a structural schematic of one embodiment of the adjustable temperature-controlled injection molding machine screw of this utility model. Please refer to [link / reference]. Figures 1-3 The adjustable temperature-controlled injection molding machine screw of this embodiment includes a feeding channel 100, a flow control mechanism 200, and a measuring mechanism 300 in its main body.

[0029] Plastic granules are fed into the injection cylinder 120 through the feeding channel 100. The injection cylinder 120, in conjunction with the injection screw 130, melts and injects the plastic granules to ensure the injection molding effect of the device. Specifically, the outlet of the feeding channel 100 is connected to the injection cylinder 120, and a slot 101 is provided on the side wall of the outlet of the feeding channel 100. In this embodiment, a protective shell 110 is provided on the outer wall of the injection cylinder 120, and an injection screw 130 is provided inside the injection cylinder 120. An injection drive motor 131 is provided on the outer wall of the injection cylinder 120, and the output end of the injection drive motor 131 is fixedly connected to the injection screw 130. The cross-section of the feeding channel 100 is rectangular.

[0030] The flow control mechanism 200 controls the rotation of the threaded rod 230 via the variable frequency motor 220, causing the threaded block 240 to be guided by the guide rail 210 to push the baffle 250 into the slot 101, thereby blocking the outlet of the feeding channel 100 and adjusting the outlet flow rate. This can achieve various flow adjustment effects. Specifically, the flow control mechanism includes a guide rail 210, a variable frequency motor 220 disposed on the side wall of the guide rail 210, a threaded rod 230 disposed on the output end of the variable frequency motor 220, a threaded block 240 that cooperates with the threaded rod 230, and a baffle 250 disposed on the side wall of the threaded block 240. The baffle 250 is inserted along the slot 101. In this embodiment, the baffle 250 is a rectangular plate, and a sealing strip 251 is disposed on the outer periphery of the baffle 250. The sealing strip 251 is made of high temperature resistant rubber. A connecting rod 211 is disposed on the side wall of the guide rail 210, and the connecting rod 211 is fixedly connected to the side wall of the protective shell 110.

[0031] The measuring mechanism 300 rotates synchronously with the threaded rod 230 via the transparent optical disc 310. Light passes through the light-transmitting holes intermittently, allowing the photoelectric switch 320 to detect the light signals in real time. For example, if there are 60 light-transmitting holes, one rotation of the threaded rod 230 represents one rotation of the transparent optical disc 310. The threaded block 240 drives the baffle 250 to move by one thread pitch. The photoelectric switch 320 detects 60 photoelectric signals and transmits them in real time to an external control system. The external control system processes these signals to obtain the sealing area of ​​the baffle 250 at the outlet. The required feed flow rate is set, and the control system controls the variable frequency motor 220 to start and stop, so as to achieve precise control of the feed flow rate. The operation is simple and the application range is wide. Specifically, the measuring mechanism 300 includes a transparent optical disc 310 disposed on the shaft of the threaded rod 230 and a photoelectric switch 320 that cooperates with the transparent optical disc 310. In this embodiment, the side wall of the transparent optical disc 310 has light-transmitting holes distributed around its circumference. The light source of the photoelectric switch 320 is located on one side of the transparent optical disc 310, and the receiving end of the photoelectric switch 320 is located on the other side of the transparent optical disc 310.

[0032] Combination Figures 1-3 The adjustable temperature-controlled injection molding machine screw of this embodiment is used as follows: Plastic granules are fed into the injection cylinder 120 through the feeding channel 100. The injection cylinder 120, in conjunction with the injection screw 130, melts and injects the plastic granules to ensure the injection molding effect of the device. The variable frequency motor 220 controls the rotation of the threaded rod 230, causing the threaded block 240 to be guided by the guide rail 210 to push the baffle 250 into the slot 101, thereby blocking the outlet of the feeding channel 100 and adjusting the outlet flow rate. Various flow rate adjustment effects can be achieved. The light-transmitting disc 310 rotates synchronously with the threaded rod 230, and the light-transmitting hole... Intermittent light transmission allows photoelectric switch 320 to detect light signals in real time. For example, if there are 60 light-transmitting holes, one rotation of threaded rod 230 indicates one rotation of light-transmitting disc 310. Threaded block 240 drives baffle 250 to move one thread pitch. Photoelectric switch 320 detects 60 photoelectric signals and transmits them to an external control system in real time. The external control system processes the signals to obtain the sealing area of ​​baffle 250 at the outlet. The required feed flow rate is set in the external control system, which then controls the variable frequency motor 220 to start and stop, achieving precise control of the feed flow rate. The operation is simple and has a wide range of applications.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An adjustable temperature-controlled injection molding machine screw, characterized in that, include: A feeding channel (100) is provided, the outlet of which is connected to a plastic injection cylinder (120), and a slot (101) is provided on the side wall of the outlet of the feeding channel (100). A flow control mechanism (200) includes a guide rail (210), a variable frequency motor (220) disposed on the side wall of the guide rail (210), a threaded rod (230) disposed on the output end of the variable frequency motor (220), a threaded block (240) cooperating with the threaded rod (230), and a baffle (250) disposed on the side wall of the threaded block (240). The baffle (250) is inserted along the slot (101). The measuring mechanism (300) includes a transparent optical disc (310) disposed on the shaft of the threaded rod (230) and a photoelectric switch (320) cooperating with the transparent optical disc (310).

2. The adjustable temperature-controlled injection molding machine screw according to claim 1, characterized in that, The outer wall of the injection molding cylinder (120) is provided with a protective shell (110), and the inside of the injection molding cylinder (120) is provided with an injection screw (130).

3. The adjustable temperature-controlled injection molding machine screw according to claim 2, characterized in that, The outer wall of the injection molding cylinder (120) is provided with an injection molding drive motor (131), and the output end of the injection molding drive motor (131) is fixedly connected to the injection molding screw (130).

4. The adjustable temperature-controlled injection molding machine screw according to claim 3, characterized in that, The baffle (250) is a rectangular plate, and the feeding channel (100) has a rectangular cross-section.

5. The adjustable temperature-controlled injection molding machine screw according to claim 4, characterized in that, A sealing strip (251) is provided on the outer periphery of the baffle (250), and the sealing strip (251) is made of high temperature resistant rubber strip.

6. The adjustable temperature-controlled injection molding machine screw according to claim 5, characterized in that, The guide rail (210) has a connecting rod (211) on its side wall, and the connecting rod (211) is fixedly connected to the side wall of the protective shell (110).

7. The adjustable temperature-controlled injection molding machine screw according to claim 6, characterized in that, The transparent optical disc (310) has light-transmitting holes distributed around its sidewall. The light source of the photoelectric switch (320) is located on one side of the transparent optical disc (310), and the receiving end of the photoelectric switch (320) is located on the other side of the transparent optical disc (310).

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