Injection mold capable of preventing injection molding opening from being blocked

Abstract

The injection mold comprises a control main machine, the control main machine is connected with a base, one side of the control main machine is connected with one side of a front pressing plate, the other side of the front pressing plate is connected with one side of a movable mold, the other side of the movable mold makes contact with one side of a fixed mold, and the other side of the fixed mold communicates with one side of a rear pressing plate. And the other side of the rear pressing plate communicates with an injection molding control device penetrating through the rear pressing plate, the rear pressing plate is connected with the base, and the injection molding control device is connected with a control sliding device. And most injection molding machines convey injection molding raw materials in a spiral mode, after the injection molding machines are not used, the injection molding raw materials cannot be circulated through conveying of spiral blades, so that an injection molding pipeline needs to be emptied, waste is caused, if the injection molding raw materials inside are not emptied, pigmentation is caused, and the color of the raw materials is changed. And the product quality is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold capable of avoiding blockage of an injection port. Background Art

[0002] Patent No. CN114889058A discloses an injection port of an injection mold, and relates to the technical field of injection molds. The invention includes an injection molding mechanism, on which a flow guiding mechanism and a heating mechanism are arranged, and the injection molding mechanism includes a lower mold, an upper mold movably connected to the lower mold, and an injection molding tube arranged on the upper mold. The invention drives the worm to rotate by starting the motor, and drives the rack to move by rotating the worm gear, so that the flow guiding tube can be moved to block and close the injection molding channel. At this time, the feed port will overlap with the injection molding channel, and the excess molten plastic will flow out through the flow guiding tube, which is not only convenient for the staff to collect in a centralized manner, but also can avoid the formation of a gate after the product is cooled and molded. At the same time, the heating plate is squeezed when the flow guiding tube moves, so that the second conductive head will contact the first conductive head, and the electric heater can be triggered to start, and the flow guiding tube is heated to avoid the hot molten plastic from solidifying when it encounters the cold flow guiding tube during diversion.

[0003] The injection mold is mainly composed of a movable mold and a fixed mold. The movable mold is installed on the movable plate of the injection molding machine, and the fixed mold is installed on the fixed 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. After the molds are separated, the plastic part remains on the movable mold side, and then the demoulding mechanism set in the movable mold ejects the plastic part.

[0004] The existing injection molding ports are easily clogged. The nozzle of the injection molding machine or the feed port of the mold is clogged by other impurities. After the equipment has been used for a long time, the nozzle or the feed port may accumulate impurities or raw material residues, which are not cleaned in time and cause blockage. At the same time, most of the existing injection molding machines use spiral conveyors to transport injection molding materials. When not in use, the spiral blade conveyor cannot circulate the injection molding materials, so the injection molding pipeline needs to be emptied, causing waste. If the injection molding materials inside are not emptied, pigments will precipitate, causing the color of the raw materials to change, affecting product quality.

[0005] Therefore, an injection mold that avoids clogging of the injection port is needed to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an injection mold which can avoid clogging of the injection port, so as to solve the problems mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection mold for avoiding blockage of an injection port, comprising a control host, the control host is connected to a base, one side of the control host is connected to one side of a front pressure plate, the other side of the front pressure plate is connected to one side of a movable mold, the other side of the movable mold contacts one side of a fixed mold, the other side of the fixed mold is connected to one side of a rear pressure plate, the other side of the rear pressure plate is connected to an injection control device passing through the rear pressure plate, the rear pressure plate is connected to the base, and the injection control device is connected to a control sliding device.

[0008] Furthermore, the injection molding control device includes an outer shell, one side of the inner wall of the outer shell is connected to one end of the inner shell, a hollow rectangular groove is opened at one end of the inner shell, the other end of the inner shell is in contact with one side of the control block, the other end of the control block is slidably connected to the injection port opened in the fixed mold, one side of the control block is connected to one end of the control rod, the outer shell and the inner shell are opened with a first feed port and a second feed port arranged vertically, the other end of the control is connected to a driving device, and the driving device is connected to a control sliding device.

[0009] Furthermore, the outer ring at one end of the control rod is connected to the closing block, and the closing block is slidably connected to the inner wall of the inner casing.

[0010] Furthermore, the control sliding device includes a symmetrically arranged sliding rod and a sliding sleeve, the sliding rod is slidably connected to the sliding sleeve, one end of the sliding rod passes through the rear pressure plate and is connected to the front pressure plate, one end of the sliding sleeve is connected to the sliding block, the sliding block is slidably connected to the base, and the sliding block is connected to the driving device.

[0011] Furthermore, the driving device includes a private service motor, the output end of the private service motor is connected to the control rod, the outer ring of the control rod is connected to the inner ring of the spiral conveying blade, and the spiral conveying blade is connected to the inner wall of the inner casing.

[0012] Furthermore, the output end of the private service motor is connected to the transmission gear set, the transmission gear set is connected to one end of the heating sleeve, the other end of the heating sleeve is connected to the inner ring of the conductive slip ring, and the outer ring of the conductive slip ring is connected to the rear pressure plate.

[0013] Furthermore, the other side of the front pressure plate is connected to one end of the guide rod, and the other end of the guide rod is slidably connected to the through hole formed in the rear pressure plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the injection mold for avoiding injection port blockage is reasonable and has the following advantages: (1) The control host controls the front pressing plate to drive the movable mold to move and contact the fixed mold on the rear pressing plate. When the front pressing plate moves, it will drive the control sliding device to open the injection control device. The injection control device opens the injection port of the fixed mold for injection molding. After the injection molding is completed, the control host controls the front pressing plate to drive the movable mold to move and disengage from the fixed mold on the rear pressing plate. The injection control device closes the injection port of the fixed mold, thereby avoiding blockage of the injection port of the fixed mold and realizing automation to avoid blockage of the injection port. (2) The private service motor drives the control rod and the spiral conveying blade, and one side of the inner wall of the outer shell is connected to one end of the inner shell, a hollow rectangular groove is provided at one end of the inner shell, and the other end of the inner shell is not connected to the other side of the inner wall of the outer shell, so that the control block can be separated from the inner shell when the injection port is closed, and the continuously rotating private service motor can continue to drive the control rod and the spiral conveying blade to allow the injection molding material in the inner shell to circulate in the inner shell and the cavity between the inner shell and the outer shell, thereby preventing the spiral conveying blade from continuing to rotate when the injection molding material is not being injected, and avoiding the pigment precipitation of the injection molding material in the inner shell and the cavity without emptying, which causes the color of the material to change; (3) The main control unit drives the rear pressure plate, the slide rod, the slide sleeve and the slider, and the slider drives the driving device and the injection control device to move, so that no manual control is required, and it is possible to ensure that the injection port will not be blocked, thereby realizing automatic processing; when the injection port is opened for injection molding, the closing block no longer blocks the second feed port, so that normal injection molding can be performed, and after the injection molding is completed, the control rod is pushed to cause the control block to close the injection port of the fixed mold again, and at the same time, the closing block blocks the second feed port again, thereby preventing the continuously rotating spiral conveying blade from bringing in the injection molding raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 It is a structural schematic diagram of the injection molding control device in the present invention; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 for Figure 4 Enlarged view of point C in the middle; Figure 7 It is a structural schematic diagram of the control sliding device in the present invention; Figure 8 It is a schematic diagram of the structure of the spiral conveying blade in the present invention; Fig. 9It is a schematic diagram of the structure of the driving device in the present invention.

[0016] In the figure: 1-control host, 2-front pressure plate, 3-rear pressure plate, 4-guide rod, 5-control sliding device, 51-slide rod, 52-slide sleeve, 53-slider, 6-movable mold, 7-fixed mold, 8-heating sleeve, 9-injection control device, 91-outer shell, 911-first feed port, 92-control block, 93-inner shell, 931-second feed port, 94-control rod, 95-closing block, 10-driving device, 101-private service motor, 102-screw conveying blade, 103-transmission gear set, 104-conductive slip ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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] See also Figure 1-9 The present invention provides a technical solution: an injection mold for avoiding blockage of an injection port, comprising a control host 1, the control host 1 is connected to a base, one side of the control host 1 is connected to one side of a front pressing plate 2, the other side of the front pressing plate 2 is connected to one side of a movable mold 6, the other side of the movable mold 6 contacts one side of a fixed mold 7, the other side of the fixed mold 7 is connected to one side of a rear pressing plate 3, the other side of the rear pressing plate 3 is connected to an injection control device 9 passing through the rear pressing plate 3, the rear pressing plate 3 is connected to the base, the injection control device 9 is connected to a control sliding device 5, the front pressing plate 2 is controlled by the control host 1 to drive the movable mold 6 to move and contact the fixed mold 7 on the rear pressing plate 3, and the front pressing plate 2 is connected to the fixed mold 7 on the rear pressing plate 3. While moving, it will drive the control sliding device 5 to open the injection control device 9, and the injection control device 9 opens the injection port of the fixed mold 7 for injection. After the injection is completed, the control host 1 controls the front pressure plate 2 to drive the movable mold 6 to move and separate from the fixed mold 7 on the rear pressure plate 3. The injection control device 9 closes the injection port of the fixed mold 7, thereby avoiding blockage of the injection port of the fixed mold 7, and realizes automation to avoid blockage of the injection port. The other side of the front pressure plate 2 is connected to one end of the guide rod 4, and the other end of the guide rod 4 is slidably connected to the perforation opened in the rear pressure plate 3. The guide rod 4 can ensure the stability of demolding and avoid damage to the finished parts of the injection mold.

[0019] The injection molding control device 9 includes an outer shell 91, one side of the inner wall of the outer shell 91 is connected to one end of the inner shell 93, one end of the inner shell 93 is provided with a hollow rectangular groove, the other end of the inner shell 93 is in contact with one side of the control block 92, the other end of the control block 92 is slidably connected to the injection port provided in the fixed mold 7, one side of the control block 92 is connected to one end of the control rod 94, the outer shell 91 and the inner shell 93 are provided with a first feed port 911 and a second feed port 931 arranged vertically, the other end of the control is connected to the driving device 10, and the driving device 10 is connected to the control sliding device 5, by pulling the control rod 94, the control block 92 is separated from the injection port of the fixed mold 7, the injection port is opened for injection molding, after the injection molding is completed, the control rod 94 is pushed again to cause the control block 92 to close the injection port of the fixed mold 7 again, thereby avoiding the blockage of the injection port. The control sliding device 5 includes a symmetrically arranged sliding rod 51 and a sliding sleeve 52, the sliding rod 51 is slidably connected to the sliding sleeve 52, one end of the sliding rod 51 passes through the rear pressure plate 3 and is connected to the front pressure plate 2, one end of the sliding sleeve 52 is connected to the slider 53, the slider 53 is slidably connected to the base, and the slider 53 is connected to the driving device 10. The rear pressure plate 3, the sliding rod 51, the sliding sleeve 52 and the slider 53 are driven by the control host 1, and the slider 53 drives the driving device 10 and the injection control device 9 to move, so that there is no need for manual control to ensure that the injection port will not be blocked, thereby realizing automated processing. The outer ring of one end of the control rod 94 is connected to the closing block 95, and the closing block 95 is slidably connected to the inner wall of the inner shell 93.

[0020] The driving device 10 includes a private service motor 101, the output end of the private service motor 101 is connected to the control rod 94, the outer ring of the control rod 94 is connected to the inner ring of the spiral conveying blade 102, and the spiral conveying blade 102 is connected to the inner wall of the inner shell 93. When the injection port is opened for injection molding, the closing block 95 no longer blocks the second feed port 931, so that normal injection molding can be performed. After the injection molding is completed, the control rod 94 is pushed to cause the control block 92 to close the injection port of the fixed mold 7 again. At the same time, the closing block 95 blocks the second feed port 931 again, so as to prevent the continuously rotating spiral conveying blade from bringing in the injection molding material. At the same time, the private service motor 101 drives the control rod 94 and the spiral conveying blade, and One side of the inner wall of the outer shell 91 is connected to one end of the inner shell 93, and a hollow rectangular groove is provided at one end of the inner shell 93, while the other end of the inner shell 93 is not connected to the other side of the inner wall of the outer shell 91, so that the control block 92 can be separated from the inner shell 93 when the injection port is closed, and the continuously rotating private service motor 101 can continue to drive the control rod 94 and the spiral conveying blade to allow the injection molding material in the inner shell 93 to circulate in the inner shell 93 and the cavity between the inner shell 93 and the outer shell 91, thereby preventing the spiral conveying blade from continuing to rotate when the injection molding material is not being injected, and avoiding the pigment precipitation of the injection molding material in the inner shell 93 and the cavity without emptying, resulting in a change in the color of the raw material.

[0021] The output end of the private service motor 101 is connected to the transmission gear set 103, the transmission gear set 103 is connected to one end of the heating sleeve 8, the other end of the heating sleeve 8 is connected to the inner ring of the conductive slip ring 104, and the outer ring of the conductive slip ring 104 is connected to the rear pressure plate 3. The heating sleeve 8 can be rotated through the transmission gear set 103 and the conductive slip ring 104 to more fully heat the injection molding material in the inner shell 93 and the cavity.

[0022] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An injection mold for preventing injection port blockage, comprising a control host (1), characterized in that: The control host (1) is connected to the base, one side of the control host (1) is connected to one side of the front pressure plate (2), the other side of the front pressure plate (2) is connected to one side of the movable mold (6), the other side of the movable mold (6) is in contact with one side of the fixed mold (7), the other side of the fixed mold (7) is connected to one side of the rear pressure plate (3), the other side of the rear pressure plate (3) is connected to an injection control device (9) passing through the rear pressure plate (3), the rear pressure plate (3) is connected to the base, and the injection control device (9) is connected to the control sliding device (5).

2. An injection mold for preventing injection port blockage according to claim 1, characterized in that: The injection control device (9) comprises an outer shell (91), one side of the inner wall of the outer shell (91) is connected to one end of an inner shell (93), one end of the inner shell (93) is provided with a hollow rectangular groove, the other end of the inner shell (93) is in contact with one side of a control block (92), the other end of the control block (92) is slidably connected to an injection port provided in a fixed mold (7), one side of the control block (92) is connected to one end of a control rod (94), the outer shell (91) and the inner shell (93) are provided with a first feed port (911) and a second feed port (931) arranged vertically, the other end of the control is connected to a driving device (10), and the driving device (10) is connected to a control sliding device (5).

3. The injection mold for preventing injection port blockage according to claim 2, characterized in that: The outer ring of one end of the control rod (94) is connected to a closing block (95), and the closing block (95) is slidably connected to the inner wall of the inner casing (93).

4. The injection mold for preventing injection port blockage according to claim 2, characterized in that: The control sliding device (5) comprises a sliding rod (51) and a sliding sleeve (52) which are symmetrically arranged. The sliding rod (51) is slidably connected to the sliding sleeve (52). One end of the sliding rod (51) passes through the rear pressure plate (3) and is connected to the front pressure plate (2). One end of the sliding sleeve (52) is connected to a sliding block (53). The sliding block (53) is slidably connected to a base. The sliding block (53) is connected to a driving device (10).

5. The injection mold for preventing injection port blockage according to claim 4, characterized in that: The driving device (10) comprises a servo motor (101), the output end of the servo motor (101) is transmission-connected to a control rod (94), the outer ring of the control rod (94) is transmission-connected to an inner ring of a spiral conveying blade (102), and the spiral conveying blade (102) is transmission-connected to an inner wall of an inner casing (93).

6. The injection mold for preventing injection port blockage according to claim 5, characterized in that: The output end of the private service motor (101) is transmission-connected to the transmission gear set (103), the transmission gear set (103) is transmission-connected to one end of the heating sleeve (8), the other end of the heating sleeve (8) is connected to the inner ring of the conductive slip ring (104), and the outer ring of the conductive slip ring (104) is connected to the rear pressure plate (3).

7. The injection mold for preventing injection port blockage according to claim 1, characterized in that: The other side of the front pressure plate (2) is connected to one end of the guide rod (4), and the other end of the guide rod (4) is slidably connected to a through hole provided in the rear pressure plate (3).

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