Injection molding opening cleaning device for injection mold

Abstract

The injection molding opening cleaning device comprises a body, the body comprises a cleaning mechanism and a driving mechanism, the cleaning mechanism and the driving mechanism are connected through a push rod, the cleaning mechanism comprises an annular plate, and four groups of first scraping plates and second scraping plates are movably connected to the annular plate; an adjusting plate is further included, and a sliding groove matched with the adjusting plate is formed in the scraping plate; the driving mechanism comprises two sets of symmetrical motors, lead screws are connected to the motors, connecting blocks are arranged at the ends, away from the motors, of the lead screws, movable plates are in threaded connection with the lead screws, air cylinders are fixedly arranged in the middles of the sides, away from the motors, of the movable plates, and pistons of the air cylinders are fixedly connected with push rods. The scraping plate is adjustable, so that the opening and closing angle of the scraping plate can be adjusted, the cleaning mechanism can be closed to a certain angle to be smoothly inserted into the injection molding opening, then the cleaning mechanism stretches to make contact with the inner wall of the injection molding opening, then waste is scraped out, and the situation that the waste is pushed into the injection molding opening during insertion, and blockage is caused can be avoided; and meanwhile, the arc-shaped scrapers cannot damage the inner wall of the injection molding opening.

Description

Technical Field

[0001] The utility model relates to the field of cleaning devices, in particular to an injection port cleaning device for an injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. Specifically, it refers to the process of injecting heated and melted plastic into a mold cavity under high pressure by an injection molding machine, and then cooling and solidifying it to obtain a molded product. After the injection molding is completed, it is usually necessary to clean the injection port to avoid blockage of the injection port that affects the feeding speed, and to reduce the mixing of materials when different materials are injected. In the prior art, a scraper or scraper is usually used to scrape out the residual waste from the injection port. When a scraper is used, it is easy to damage the inner wall of the injection port during the cleaning process because the scraper is relatively sharp. When a scraper is used, when it is inserted into the injection port, the scraper cannot be adjusted, and it is easy to push the waste inside the injection port into the injection molding machine, causing blockage. Therefore, it is necessary to make improvements. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an injection port cleaning device for an injection mold to solve the problems existing in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A device for cleaning an injection port of an injection mold, comprising a body, the body comprising a cleaning mechanism and a driving mechanism, the two being connected by a push rod, the cleaning mechanism comprising a ring plate located near the left end of the push rod, four groups of arc-shaped first scrapers and second scrapers being movably connected to the ring plate, the second scrapers being located at the left end of the first scrapers and corresponding to the gaps between the first scrapers; and also comprising an adjusting plate with a slider fixedly connected to the push rod, the first scrapers and the second scrapers being provided with sliding grooves matching the adjusting plates;

[0006] The driving mechanism includes two groups of symmetrical motors, the motors are connected with screw rods, the end of the screw rods away from the motors has a connecting block, a movable plate is threadedly connected to the screw rods, a cylinder is fixedly arranged in the center of the movable plate away from the motor, and the piston of the cylinder is fixedly connected to the push rod.

[0007] Furthermore, the first scraper and the second scraper are hinged to the ring plate via arc hinges.

[0008] Furthermore, there are two groups of arc hinges on the first scraper and the second scraper.

[0009] Furthermore, the inner diameter of the ring plate is greater than the diameter of the push rod.

[0010] Furthermore, each group of the first scraper and the second scraper are tightly fitted.

[0011] The beneficial effect of the utility model is that the first scraper and the second scraper of the cleaning mechanism are movably connected to the ring plate on the push rod, and are slidably connected thereto through an adjustment plate, and then the push rod is driven to move left and right by the cylinder piston, so that the opening and closing angle can be adjusted, so that the cleaning mechanism can be closed to a certain angle and smoothly inserted into the injection port, and then stretched to contact the inner wall of the injection port, and then the waste material can be scraped out, which can avoid pushing the waste material into the injection port during insertion to cause blockage, and at the same time, the arc-shaped scraper will not damage the inner wall of the injection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure of the scraper of the utility model;

[0014] Figure 3 It is a schematic diagram of the planar structure of the utility model;

[0015] In the figure: 1. body; 11. cleaning mechanism; 111. first scraper; 112. second scraper; 113. slide; 114. adjustment plate; 115. ring plate; 116. arc hinge; 12. push rod; 13. driving mechanism; 131. motor; 132. screw rod; 133. movable plate; 134. connecting block; 135. cylinder. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0017] An injection port cleaning device for an injection mold, such as Figure 1-3 As shown, the main body 1 includes a cleaning mechanism 11 and a driving mechanism 13, which are connected by a push rod 12, and the cleaning mechanism 11 includes a ring plate 115 located near the left end of the push rod 12, and four groups of arc-shaped first scrapers 111 and second scrapers 112 are movably connected to the ring plate 115, and the second scrapers 112 are located at the left end of the first scrapers 111 and correspond to the gaps between the first scrapers 111; and also includes an adjustment plate 114 with a slider fixedly connected to the push rod 12, and the first scrapers 111 and the second scrapers 112 are provided with a slide groove 113 matched with the adjustment plate 114;

[0018] The driving mechanism 13 includes two symmetrical motors 131, the motors 131 are connected with screw rods 132, one end of the screw rods 132 away from the motors 131 is provided with a connecting block 134, a movable plate 133 is threadedly connected to the screw rods 132, a cylinder 135 is fixedly arranged in the center of the movable plate 133 away from the motor 131, and a piston of the cylinder 135 is fixedly connected to the push rod 12;

[0019] When the injection port needs to be cleaned, the cylinder 135 is first started, the piston extends to drive the push rod 12 to move to the left, and the push rod 12 drives the adjustment plate 114 to slide downward along the slide groove 113. At this time, the first scraper 111 and the second scraper 112 are squeezed by the adjustment plate 114 and close to the push rod 12 until the adjustment plate 114 slides to the bottom of the slide groove 113. At this time, the pause button of the cylinder 135 is pressed, the motor 131 is started to rotate forward, the motor 131 drives the screw rod 132 to rotate, and then drives the movable plate 133 to move to the left, and the movable plate 133 moves to the left. The movable plate 133 drives the push rod 12 to move to the left, thereby inserting the cleaning mechanism 11 into the injection port. At this time, the cylinder 135 is started again, and the piston contracts to drive the push rod 12 to move to the right. The adjustment plate 114 slides upward along the slide groove 113, and the first scraper 111 and the second scraper 112 also stretch accordingly until they contact the inner wall of the injection port to close the cylinder 135; then the motor 131 is started to reverse, and the movement of the screw rod 132 drives the cleaning mechanism 11 to move to the right and scrape out the waste in the injection port to complete the cleaning.

[0020] In the present invention, preferably, the first scraper 111 and the second scraper 112 are hinged to the ring plate 115 through an arc hinge 116, so that the connection between the two on the ring surface is more stable.

[0021] In the present invention, preferably, there are two groups of arc hinges 116 on the first scraper 111 and the second scraper 112 to further improve the stability of the connection between the two.

[0022] In the present invention, preferably, the inner diameter of the ring plate 115 is larger than the diameter of the push rod 12 , so that the push rod 12 can pass flexibly in the ring plate 115 .

[0023] In the present invention, preferably, each set of the first scraper 111 and the second scraper 112 are tightly fitted together, so that the waste can be scraped out evenly.

[0024] The working principle of the utility model is as follows: when the injection port needs to be cleaned, the cylinder 135 is first started, the piston extends and drives the push rod 12 to move to the left, and the push rod 12 drives the adjustment plate 114 to slide downward along the slide groove 113. At this time, the first scraper 111 and the second scraper 112 are squeezed by the adjustment plate 114 and close to the push rod 12 until the adjustment plate 114 slides to the bottom of the slide groove 113. At this time, the pause button of the cylinder 135 is pressed, the motor 131 is started to rotate forward, and the motor 131 drives the screw rod 132 to rotate and then drives the movable plate 133 to The movable plate 133 drives the push rod 12 to move to the left, thereby inserting the cleaning mechanism 11 into the injection port. At this time, the cylinder 135 is started again, and the piston contracts to drive the push rod 12 to move to the right. The adjusting plate 114 slides upward along the slide groove 113, and the first scraper 111 and the second scraper 112 also stretch accordingly until they contact the inner wall of the injection port to close the cylinder 135; then the motor 131 is started to reverse, and the cleaning mechanism 11 is driven to move to the right through the movement of the screw rod 132 to scrape out the waste in the injection port to complete the cleaning.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection port cleaning device for an injection mold, comprising a main body (1), wherein the main body (1) comprises a cleaning mechanism (11) and a driving mechanism (13), the two being connected by a push rod (12), characterized in that: The cleaning mechanism (11) comprises a ring plate (115) located near the left end of the push rod (12), and four groups of arc-shaped first scrapers (111) and second scrapers (112) are movably connected to the ring plate (115), and the second scrapers (112) are located at the left end of the first scrapers (111) and correspond to the gaps between the first scrapers (111); and also comprises an adjustment plate (114) with a slider fixedly connected to the push rod (12), and the first scrapers (111) and the second scrapers (112) are provided with sliding grooves (113) that cooperate with the adjustment plates (114); The driving mechanism (13) comprises two groups of symmetrical motors (131), the motors (131) are connected to screw rods (132), one end of the screw rods (132) away from the motors (131) is provided with a connecting block (134), a movable plate (133) is threadedly connected to the screw rods (132), a cylinder (135) is fixedly arranged in the center of the movable plate (133) away from the motors (131), and a piston of the cylinder (135) is fixedly connected to the push rod (12).

2. The injection port cleaning device for an injection mold according to claim 1, characterized in that: The first scraper (111) and the second scraper (112) are hinged to the ring plate (115) via arc hinges (116).

3. The injection port cleaning device for an injection mold according to claim 2, characterized in that: There are two groups of arc hinges (116) on the first scraper (111) and the second scraper (112).

4. The injection port cleaning device for an injection mold according to claim 1, characterized in that: The inner diameter of the ring plate (115) is greater than the diameter of the push rod (12).

5. The injection port cleaning device for an injection mold according to claim 1, characterized in that: Each group of the first scraper (111) and the second scraper (112) are tightly fitted.

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