Sandwich type insert injection mold

Abstract

A kind of sandwich type insert injection mold.The present application relates to the field of injection mold, including injection mold, the injection mold includes front mould and back mould, the back mould includes panel, back mould plate and back mould kernel arranged in sequence, the back mould kernel is connected in the front containing groove of back mould plate, the middle of the back mould kernel is equipped with back insert;It also includes needle plate A, needle plate B, needle plate C, needle, positioning needle and time sequence controller, the back of the back mould plate is equipped with back containing groove, the needle plate A, needle plate B and needle plate C are sequentially arranged and movably connected in back containing groove, the needle plate A is connected with needle plate B, the needle plate B, needle plate C and back mould plate are equipped with the through hole for placing spring one with intercommunication.The injection process of the present application is completed by one action of mold, more accurate and efficient, to improve production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of injection molds, and more particularly to a sandwich-type insert injection mold. Background Technology

[0002] Existing sandwich insert products have certain limitations in injection molding production. Previously, such products were made by first injection molding a plastic fixing post into the insert using a primary mold, and then using the plastic fixing post to fix the insert in a secondary mold for positioning. After the product from the secondary mold is produced, the protruding plastic fixing post is removed through secondary processing. This method is costly, time-consuming, and has low production efficiency. Summary of the Invention

[0003] To address the above problems, this invention provides a sandwich-type insert injection molding production equipment that is easy to operate and improves efficiency.

[0004] The technical solution of the present invention is: a sandwich-type insert injection mold, including an injection mold, the injection mold including a front mold and a rear mold, the rear mold including a panel, a rear template and a rear mold core arranged in sequence, the rear mold core being connected in a front receiving groove on the front side of the rear template, and a rear insert being provided in the middle of the rear mold core;

[0005] It also includes pin support plate A, pin support plate B, pin support plate C, pins, positioning pins, and a timing controller.

[0006] The rear template has a rear receiving groove on its rear side, and the pin support plate A, pin support plate B and pin support plate C are arranged sequentially and movably connected in the rear receiving groove.

[0007] The needle support plate A is connected to the needle support plate B. The needle support plate B, the needle support plate C, and the rear template are provided with communicating through holes for placing spring one.

[0008] The needle support plate A and the needle support plate B are provided with a through hole, and a guide post is provided in the through hole. The guide post is connected to the panel. The sum of the thickness of the needle support plate A and the thickness of the needle support plate B is less than the height of the guide post.

[0009] The sum of the height of the guide post and the thickness of the pin support plate C is less than the depth of the rear receiving groove;

[0010] The support pin is connected to the support pin plate B and passes through the support pin plate C, the rear template, and the rear mold core.

[0011] The positioning pin is connected to the pin support plate C and passes through the rear template and the rear mold core.

[0012] The panel is equipped with a high-pressure hydraulic cylinder, which is used to push the needle support plate A, and the timing controller is used to control the high-pressure hydraulic cylinder.

[0013] The front side of the positioning pin is chamfered.

[0014] The opposite surfaces of the support plate C and the rear template are provided with blind holes for placing the second spring.

[0015] A pressure sensor is provided on the front side of the support pin, and the pressure sensor is used to connect to the timing controller.

[0016] The perforations are blind holes located on the pin support plate B and the rear template, respectively.

[0017] It also includes a robotic arm for attaching inserts to the support pin.

[0018] The insert has a positioning hole, and the support pin is used to connect to the positioning hole.

[0019] The support pins consist of four pins, and the positioning pins consist of two pins.

[0020] The high-pressure hydraulic cylinders include at least two.

[0021] The front mold includes a front template and a front mold core. The front mold core is connected to the front template. A front insert is provided in the middle of the front mold core. The front insert and the rear insert are arranged opposite to each other. The front mold core and the rear mold core are arranged opposite to each other. The front template and the rear template are arranged opposite to each other.

[0022] In this invention, during mold opening, the timing controller controls the high-pressure hydraulic cylinder piston to first eject and act on the support pin plate A and support pin plate B, and then continue to act on the support pin plate C. At the same time, spring 1 is in a compressed state under the force of the high-pressure hydraulic cylinder. At this time, four support pins and two positioning pins extend out of the cavity of the rear mold core. The robot inserts the insert into the support pins, and the positioning pins press against the end face of the insert, forming a suspended positioning action of the insert in the mold. At this time, the mold opening state is completed.

[0023] After the mold is closed, the injected material enters the cavity. The timing controller controls the high-pressure cylinder to release pressure. Under the restoring force of the spring and the reverse thrust of the material, the support pins A, B, and C retract in sequence, and the support pins and positioning pins retract and become flush with the cavity surface. At this time, the material fills the entire cavity, and the injection molding process is completed.

[0024] The injection molding process of this invention is completed in one operation of the mold, which is more precise and efficient, thereby improving production efficiency and product quality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the mold-splitting structure in this invention.

[0026] Figure 2 This is a schematic diagram of the rear mold structure. Figure 1 ,

[0027] Figure 3 yes Figure 2 A magnified view of a section at point M.

[0028] Figure 4 This is a schematic diagram of the rear mold structure. Figure 2 ,

[0029] Figure 5 yes Figure 4 A magnified view of a portion of point N in the middle;

[0030] In the diagram, 1 is the front mold, 2 is the rear mold, 3 is pin support plate A, 4 is pin support plate B, 5 is pin support plate C, 6 is pin support, 7 is positioning pin, 8 is guide post, 9 is panel, 10 is rear template, 101 is rear receiving groove, 11 is rear mold core, 12 is through hole, 13 is spring one, 14 is high-pressure cylinder, 15 is positioning hole, 16 is front template, 17 is front mold core, 18 is insert, 19 is rear insert, 20 is chamfer, 21 is spring two, 22 is blind hole, and 23 is runner. Detailed Implementation

[0031] The present invention is as follows Figure 1-5 As shown, a sandwich-type insert injection mold includes an injection mold, which includes a front mold 1 and a rear mold 2. The rear mold 2 includes a panel 9, a rear template 10 and a rear mold core 11 arranged sequentially. The panel and the rear template are connected. The rear mold core 11 is connected to a front receiving groove on the front side of the rear template 10. A rear insert 19 is provided in the middle of the rear mold core.

[0032] It also includes pin support plate A3, pin support plate B4, pin support plate C5, pin support 6, positioning pin 7, and timing controller.

[0033] The rear template 10 is provided with a rear receiving groove 101 on its rear side. The needle support plate A3, needle support plate B4 and needle support plate C5 are arranged sequentially and movably connected in the rear receiving groove.

[0034] The needle support plate A3 and the needle support plate B4 are connected to form a whole. The needle support plate B4, the needle support plate C5, and the rear template 6 are provided with communicating through holes 12, which are used to place the spring 13.

[0035] The needle support plate A and the needle support plate B are provided with a through hole, and a guide post 8 is provided in the through hole. The guide post is connected to the panel. The sum of the thickness of the needle support plate A and the thickness of the needle support plate B, L1, is less than the height L2 of the guide post.

[0036] The sum of the height L2 of the guide post and the thickness L3 of the support plate C is less than the depth L of the rear receiving groove.

[0037] By setting guide posts, on the one hand, the reliability of the guiding action of the needle support plates A and B is ensured, and on the other hand, the needle support plate C is limited.

[0038] Under normal conditions, the support pin and the positioning pin are flush with the cavity surface of the rear mold core. During operation, the support pin plates A and B move first to extend the support pin, and then push the support pin plate C to extend the positioning pin. This results in the support pin extending beyond the cavity surface by a length greater than the positioning pin extending beyond the cavity surface, thereby enabling the support pin to connect to the insert and the positioning pin to position the insert, ensuring the reliability of the insert's position.

[0039] The support pin 6 is connected to the support pin plate B4 and passes through the support pin plate C, the rear template, and the rear mold core.

[0040] The positioning pin 7 is connected to the pin support plate C5 and passes through the rear template and the rear mold core.

[0041] The panel is equipped with a high-pressure hydraulic cylinder 14, which is used to push the pin support plate A3. The timing controller is used to control the high-pressure hydraulic cylinder. The timing controller can be installed on the mold or set up separately.

[0042] In this invention, during mold opening, the timing controller controls the high-pressure hydraulic cylinder piston to first eject the pin support plates A and B, and then continue to act on the pin support plate C. Simultaneously, spring 1 is compressed under the force of the high-pressure hydraulic cylinder. At this time, four pin support pins and two positioning pins extend out of the cavity of the rear mold core. The robotic arm inserts the insert into the pin support pins, while the positioning pins press against the end face of the insert, creating a suspended positioning action for the insert within the mold. At this point, the mold opening process is complete. Figure 2 As shown.

[0043] After mold closing, the injected plastic material enters the cavity. The timing controller releases pressure from the high-pressure cylinder, and under the restoring force of the spring and the counter-pushing force of the plastic material, the support pins A, B, and C retract sequentially. At this point, the support pins and positioning pins retract and become flush with the cavity surface, i.e. Figure 4 As shown, at this point, the rubber material fills the entire cavity simultaneously, and the injection molding process is complete.

[0044] The front side of the positioning pin 7 is chamfered 20.

[0045] The chamfer is designed so that when the adhesive enters the annular groove between the positioning pin and the insert (i.e., the chamfer of the insert), the adhesive's reverse thrust causes the pin support plate C to retract. This ensures the reliability of the insert's position during the adhesive injection process while simultaneously enabling the pin support plate C to move under the reverse thrust of the adhesive.

[0046] The opposite surfaces of the support plate C and the rear template are provided with blind holes 22 for placing the second spring 21.

[0047] Spring 2 is installed to work in conjunction with the rubber material to improve the retraction efficiency; at the same time, it ensures that the support plate C reliably contacts the guide post after retraction, thus achieving reliable limiting.

[0048] A pressure sensor is provided on the front side of the support pin, and the pressure sensor is used to connect to the timing controller.

[0049] A pressure sensor is installed so that when the support pin contacts the rubber material, it sends a signal to the timing controller, which facilitates the control of the high-pressure cylinder to release pressure, making the operation convenient and reliable.

[0050] The perforations are blind holes located on the pin support plate B4 and the rear template 10, respectively.

[0051] This makes it easier to install spring one and facilitates the reset action of the needle support plate B.

[0052] It also includes a robotic arm for attaching inserts to the support pin.

[0053] By using robotic arms for operation, manpower can be saved, and efficiency and safety can be improved.

[0054] The insert 18 is provided with a positioning hole 15, and the support pin is used to connect to the positioning hole.

[0055] This facilitates the positioning and connection of the insert.

[0056] The support pin 6 comprises four pins, and the positioning pin 7 comprises two pins.

[0057] By setting four support pins, the connecting insert can be reliably inserted and positioned. By setting positioning pins, the insert end face can be reliably held in place.

[0058] The high-pressure hydraulic cylinder 14 includes at least two.

[0059] The settings can be selected according to the actual processing needs.

[0060] The front mold 1 includes a front template 16 and a front mold core 17. The front mold core 17 is connected to the front template 16. A front insert is provided in the middle of the front mold core. The front insert and the rear insert 19 are arranged opposite to each other. The front mold core and the rear mold core are arranged opposite to each other. The front template and the rear template are arranged opposite to each other.

[0061] In this way, the insert is located in the cavity between the front mold core and the rear mold core, which facilitates injection molding during subsequent mold closing. In application, the nozzle is on the front mold, and the injection channel 23 passes through the front mold plate and the front mold core.

[0062] Regarding the information disclosed in this case, the following points need to be clarified:

[0063] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design.

[0064] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0065] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A sandwich-type insert injection mold, comprising an injection mold, the injection mold comprising a front mold and a rear mold, the rear mold comprising a panel, a rear template and a rear mold core arranged sequentially, the rear mold core being connected to a front receiving groove on the front side of the rear template, and a rear insert being provided in the middle of the rear mold core; Its features are, It also includes pin support plate A, pin support plate B, pin support plate C, pins, positioning pins, and a timing controller. The rear template has a rear receiving groove on its rear side, and the pin support plate A, pin support plate B and pin support plate C are arranged sequentially and movably connected in the rear receiving groove. The needle support plate A is connected to the needle support plate B. The needle support plate B, the needle support plate C, and the rear template are provided with communicating through holes for placing spring one. The needle support plate A and the needle support plate B are provided with a through hole, and a guide post is provided in the through hole. The guide post is connected to the panel. The sum of the thickness of the needle support plate A and the thickness of the needle support plate B is less than the height of the guide post. The sum of the height of the guide post and the thickness of the pin support plate C is less than the depth of the rear receiving groove; The support pin is connected to the support pin plate B and passes through the support pin plate C, the rear template, and the rear mold core. The positioning pin is connected to the pin support plate C and passes through the rear template and the rear mold core. The panel is equipped with a high-pressure hydraulic cylinder, which is used to push the pin support plate A, and the timing controller is used to control the high-pressure hydraulic cylinder. A pressure sensor is provided on the front side of the support pin, and the pressure sensor is used to connect to the timing controller.

2. The sandwich-type insert injection mold according to claim 1, characterized in that, The front side of the positioning pin is chamfered.

3. A sandwich-type insert injection mold according to claim 1 or 2, characterized in that, The opposite surfaces of the support plate C and the rear template are provided with blind holes for placing the second spring.

4. The sandwich-type insert injection mold according to claim 1, characterized in that, The perforations are blind holes located on the pin support plate B and the rear template, respectively.

5. A sandwich-type insert injection mold according to claim 1, characterized in that, It also includes a robotic arm for attaching inserts to the support pin.

6. A sandwich-type insert injection mold according to claim 5, characterized in that, The insert has a positioning hole, and the support pin is used to connect to the positioning hole.

7. A sandwich-type insert injection mold according to claim 1, characterized in that, The support pins consist of four pins, and the positioning pins consist of two pins.

8. A sandwich-type insert injection mold according to claim 1, characterized in that, The high-pressure hydraulic cylinders include at least two.

9. A sandwich-type insert injection mold according to claim 1, characterized in that, The front mold includes a front template and a front mold core. The front mold core is connected to the front template. A front insert is provided in the middle of the front mold core. The front insert and the rear insert are arranged opposite to each other. The front mold core and the rear mold core are arranged opposite to each other. The front template and the rear template are arranged opposite to each other.

Images