Injection mold capable of assisting separation

Abstract

The invention provides an auxiliary separation injection mold, and relates to the field of injection molds, the auxiliary separation injection mold comprises a vibration hammer, the vibration hammer is inserted in a lower mold, and a mold assembly can achieve the function of automatically jacking a workpiece in the lower mold during demolding; meanwhile, the auxiliary separation assembly can achieve the operation of vibration demolding of the lower mold when the upper mold and the lower mold are separated, separation of the workpiece and the lower mold is more thorough, efficient and rapid through vibration, the phenomenon that the workpiece is damaged, broken and the like during demolding is avoided, the vibration effect is only generated when the upper mold and the lower mold are separated, and the work efficiency is improved. The injection mold is simple in structure and stable to use, and solves the problems that when a workpiece is taken out of an existing injection mold, no structure for assisting in separating the workpiece from the mold exists, after an upper mold and a lower mold are separated, the workpiece is prone to adhering to the interior of the lower mold, manual taking out is inconvenient, and the workpiece is prone to being damaged and broken when forcibly pulled.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an auxiliary separation injection mold. Background Art

[0002] An injection mold is a type of mold used for injection molding workpieces. Specifically, it is a method of obtaining a molded product by stirring completely molten plastic material through a screw at a certain temperature, injecting it into a mold cavity with high pressure, and obtaining a molded product after cooling and solidification. The injection mold is generally divided into an upper mold and a lower mold assembly. The upper mold and the lower mold are spliced ​​together for injection molding. After the upper mold and the lower mold are separated, the workpiece completed by injection molding can be taken out.

[0003] However, as far as the currently existing injection molds are concerned, there is no structure to assist in separating the workpiece from the mold when removing the workpiece. After the upper mold and the lower mold are separated, the workpiece is likely to adhere to the inside of the lower mold, making it inconvenient to remove manually. Forcibly pulling the workpiece inside the lower mold is likely to cause damage or cracking of the workpiece. The stability and flexibility are poor, and the practicality is not high. Summary of the invention

[0004] The disclosed embodiment relates to an auxiliary separation injection mold, which comprises a mold assembly and an auxiliary separation assembly. The mold assembly can realize the function of automatically lifting the workpiece inside the lower mold during demolding. At the same time, the auxiliary separation assembly can realize the operation of vibrating the lower mold to demold when the upper mold and the lower mold are separated. Vibration makes the separation of the workpiece and the lower mold more thorough, efficient and rapid, avoiding damage, cracking and the like of the workpiece during demolding. The vibration effect only occurs when the upper mold and the lower mold are separated. The mold is stable to use and can also avoid the phenomenon of unnecessary vibration reducing the mold closing accuracy during mold closing. The mold is extremely flexible, stable and practical.

[0005] According to a first aspect of the present disclosure, an auxiliary separation injection mold is provided, specifically comprising: a mold assembly, wherein the mold assembly comprises an upper mold and a lower mold, wherein the upper mold is plugged into the top of the lower mold; the mold assembly also comprises a separation mold, wherein the separation mold is plugged into the injection mold cavity of the lower mold; an auxiliary separation assembly, wherein the auxiliary separation assembly comprises a drive shaft, a control disk and a vibrating hammer, wherein the drive shaft is rotatably connected to the interior of the lower mold, the exterior of the control disk is rotatably connected to the interior of the lower mold, and the interior of the control disk is rotatably connected to the exterior of the drive shaft, and the vibrating hammer is plugged into the interior of the lower mold.

[0006] In at least some embodiments, a track-shaped rod is provided on the side of the separation mold, and a track-shaped groove is provided inside the injection mold cavity of the lower mold, and the track-shaped rod is inserted into the inside of the track-shaped groove.

[0007] In at least some embodiments, the top shape of the split mold is complementary to the bottom cross-sectional shape of the injection molded workpiece, and the track-shaped rod is complementary to the side shape of the injection molded workpiece.

[0008] In at least some embodiments, a separation top spring is provided at the bottom of the separation mold, and the two ends of the separation top spring respectively abut against the bottom of the separation mold and the inside of the lower mold. When the upper mold and the lower mold are spliced ​​together, the upper mold will abut against the track-shaped rod so that the separation mold is in the lowest use position.

[0009] In at least some embodiments, a splicing track rod is provided at the bottom of the upper mold, and a splicing track groove is provided inside the lower mold, and the splicing track rod is inserted into the splicing track groove.

[0010] In at least some embodiments, a driving rack is provided on a side of the splicing track rod, and a driving gear is provided on one side of the driving shaft, and the driving rack and the driving gear are meshed with each other for transmission.

[0011] In at least some embodiments, a control drive block is radially inserted into the other side of the drive shaft, and a positioning top spring is provided inside the control drive block, with two ends of the positioning top spring respectively abutting against the inside of the control drive block and the inside of the drive shaft.

[0012] In at least some embodiments, a control tooth groove is provided inside the control disk, and the cross-sectional shape of a single control tooth groove and an outer end block of the control drive block are both right triangles. When the splicing track rod moves upward, the straight edge of the block of the control drive block and the straight edge of the tooth groove of the control tooth groove are engaged.

[0013] In at least some embodiments, an energy storage top spring is provided inside the vibrating hammer, and two ends of the energy storage top spring respectively abut against the inside of the vibrating hammer and the inside of the lower mold.

[0014] In at least some embodiments, a vibration bump is provided on the side of the control disk, and a radially and linearly arranged vibration offset is provided on the vibration bump, and one end of the vibration hammer abuts against the outside of the vibration bump.

[0015] The auxiliary separation injection mold provided by the present invention has the following beneficial effects.

[0016] The mold assembly can realize the function of automatically lifting the workpiece inside the lower mold during demoulding. At the same time, the auxiliary separation assembly can realize the vibration demoulding operation of the lower mold when the upper mold and the lower mold are separated. The vibration makes the separation of the workpiece and the lower mold more thorough, efficient and rapid, avoiding damage, cracking and the like of the workpiece during demoulding. The vibration effect only occurs when the upper mold and the lower mold are separated. It is stable to use and can also avoid the phenomenon of unnecessary vibration reducing the mold closing accuracy during mold closing, thereby improving the flexibility, adaptability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the upper mold when the upper mold of the present invention moves upward.

[0021] Figure 3 It is a schematic diagram of the internal structure of the upper mold and the lower mold after being spliced ​​(molded).

[0022] Figure 4 It is a schematic diagram of the structure of the mold assembly after disassembly.

[0023] Figure 5 It is a schematic diagram of the internal structure of the auxiliary separation component of the present invention after being disassembled.

[0024] Figure 6 It is a schematic diagram of the internal structure of the upper mold when the upper mold of the present invention moves upward.

[0025] Figure 7 It is a schematic diagram of the internal structure of the upper mold when the upper mold of the present invention moves downward.

[0026] Figure 8 The present invention Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0027] Fig. 9 The present invention Figure 6 Schematic diagram of the enlarged structure of part B in the middle.

[0028] Fig.10 The present invention Figure 7 Schematic diagram of the enlarged structure of part C in the middle.

[0029] Reference numerals list 1. Mold assembly; 101. upper mold; 1011. splicing track rod; 1012. driving rack; 102. lower mold; 1021. track-shaped groove; 1022. splicing track groove; 103. separation mold; 1031. track-shaped rod; 1032. separation top spring; 2. Auxiliary separation component; 201. Drive shaft; 2011. Drive gear; 2012. Control drive block; 2013. Positioning top spring; 202. Control plate; 2021. Control tooth groove; 2022. Vibration bump; 20221. Vibration offset; 203. Vibration hammer; 2031. Energy storage top spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0031] Please refer to Figures 1 to 10 As shown: Embodiment 1: The present invention provides an auxiliary separation injection mold, including a mold assembly 1, the mold assembly 1 includes an upper mold 101 and a lower mold 102, the upper mold 101 is inserted into the top of the lower mold 102; the mold assembly 1 also includes a separation mold 103, the separation mold 103 is inserted into the injection mold cavity of the lower mold 102; the auxiliary separation assembly 2, the auxiliary separation assembly 2 includes a drive shaft 201, a control disk 202 and a vibrating hammer 203, the drive shaft 201 is rotatably connected to the inside of the lower mold 102, the control disk 202 is externally rotatably connected to the inside of the lower mold 102, and the control disk 202 is internally rotatably connected to the outside of the drive shaft 201, and the vibrating hammer 203 is inserted into the inside of the lower mold 102.

[0032] In the embodiment of the present disclosure, a splicing track rod 1011 is provided at the bottom of the upper mold 101, and a splicing track groove 1022 is provided inside the lower mold 102, and the splicing track rod 1011 is inserted into the inside of the splicing track groove 1022, a track-shaped rod 1031 is provided on the side of the separation mold 103, and a track-shaped groove 1021 is provided inside the injection mold cavity of the lower mold 102, and the track-shaped rod 1031 is inserted into the inside of the track-shaped groove 1021. This design facilitates the splicing action between the upper mold 101 and the lower mold 102, and the upper mold 101 and the lower mold 102 can be stably spliced ​​and joined, thereby improving the processing quality of the injection molded workpiece.

[0033] In the embodiment of the present disclosure, the top shape of the separation mold 103 is complementary to the bottom cross-sectional shape of the injection molded workpiece, and the track-shaped rod 1031 is complementary to the side shape of the injection molded workpiece. A separation top spring 1032 is provided at the bottom of the separation mold 103, and the two ends of the separation top spring 1032 are respectively against the bottom of the separation mold 103 and the inside of the lower mold 102. When the upper mold 101 and the lower mold 102 are spliced, the upper mold 101 will resist the track-shaped rod 1031 so that the separation mold 103 is in the lowest use position. In use, the mold assembly 1 can realize the injection molding operation of the workpiece. At the same time, the mold assembly 1 also has the function of automatic demoulding, which facilitates the processing operation. When the upper mold 101 is inserted into the top of the lower mold 102 to complete the mold closing action, the upper mold 101 can drive the lower mold 102 to move forward by resisting and squeezing the track-shaped rod 1031. The separation mold 103 moves down to the processing position, and at this time the separation top spring 1032 is in a compressed state. After the upper mold 101 and the lower mold 102 are assembled and molded, the molten plastic material can be injected through the injection channel for injection molding. The separation mold 103 can realize the shaping of the bottom of the workpiece, the injection mold cavity inside the lower mold 102 and the side of the track-shaped rod 1031 can shape the side of the workpiece, and the upper mold 101 can shape the bottom and middle space of the workpiece. After the processing and cooling are completed, the upper mold 101 is lifted to separate it from the lower mold 102. At this time, under the action of the separation top spring 1032, the separation mold 103 will follow the lifting of the upper mold 101 and push the workpiece out of the lower mold 102 to complete the demolding and taking-out operation. It is convenient and flexible to use, simplifies the operation process, and greatly improves work efficiency.

[0034] In the embodiment of the present disclosure, a driving rack 1012 is provided on the side of the splicing track rod 1011, and a driving gear 2011 is provided on one side of the driving shaft 201. The gear teeth of the driving rack 1012 and the driving gear 2011 are engaged with each other for transmission. In use, the auxiliary separation component 2 can vibrate inside the lower mold 102 when the upper mold 101 and the lower mold 102 are separated. Vibration can prevent the workpiece from adhering to the injection mold cavity of the lower mold 102, facilitate the demoulding operation of the workpiece, and also prevent the workpiece from being damaged or cracked during demoulding. When the upper mold 101 moves upward (separated from the lower mold 102), the workpiece is prevented from being damaged or cracked. ), at this time, the driving rack 1012 can drive the driving shaft 201 to rotate forward through the driving gear 2011, and the driving shaft 201 can drive the control driving block 2012 to rotate synchronously when rotating forward. The control disk 202 is provided with a control tooth groove 2021 inside, and the cross-sectional shapes of the single tooth groove of the control tooth groove 2021 and the outer end block of the control driving block 2012 are both right triangles. When the splicing track rod 1011 moves upward, the straight edge of the block of the control driving block 2012 is clamped with the straight edge of the tooth groove of the control tooth groove 2021. When the control driving block 2012 follows the driving shaft 201 to rotate forward, the straight edge of the block of the control driving block 2012 will The control disk 202 is connected with the straight edge of the tooth groove 2021, thereby driving the control disk 202 to rotate synchronously. A vibration protrusion 2022 is provided on the side of the control disk 202, and a radial and linear vibration offset 20221 is provided on the vibration protrusion 2022. One end of the vibration hammer 203 abuts against the outside of the vibration protrusion 2022. When the control disk 202 rotates forward, the vibration protrusion 2022 will abut against the vibration hammer 203 to achieve the vibration action of the vibration hammer 203 frequently hitting the lower mold 102. An energy storage top spring 2031 is provided inside the vibration hammer 203, and the two ends of the energy storage top spring 2031 abut against the vibration hammer 203 respectively. When the vibration lug 2022 rotates forwardly following the control disk 202, it can push the vibration hammer 203 to one side and compress the energy storage top spring 2031 through resistance and extrusion. When it rotates to the position of the vibration offset platform 20221, the resistance effect of the vibration lug 2022 on the vibration hammer 203 is temporarily invalid, so that the energy storage top spring 2031 is released and drives the vibration hammer 203 to move quickly and strike the inside of the lower mold 102 to complete the vibration action. The continuous upward movement of the upper mold 101 will make the above-mentioned action cyclic and frequently triggered, thereby realizing the function of vibration-assisted demolding, and the demolding is stable and efficient.

[0035] In the embodiment of the present disclosure, a control driving block 2012 is radially inserted into the other side of the driving shaft 201, and a positioning top spring 2013 is provided inside the control driving block 2012. The two ends of the positioning top spring 2013 are respectively against the inside of the control driving block 2012 and the inside of the driving shaft 201. In use, the auxiliary separation component 2 will not trigger the vibration function and action when the upper mold 101 moves downward (joined with the lower mold 102). When the upper mold 101 moves downward, the driving rack 1012 can drive the driving shaft 2011 through the driving gear 2011. 1 is reversed, and the vibration offset 20221 will jam one end of the vibration hammer 203 so that the control disk 202 can never be reversed, so that the bevel of the control drive block 2012 will collide and squeeze with the bevel of the control tooth groove 2021, and make the control drive block 2012 move toward the inside of the drive shaft 201 to avoid and compress the positioning top spring 2013, while not blocking the device, it can also avoid the auxiliary separation component 2 from vibrating during the mold closing (upper mold 101 moves down) action, resulting in a decrease in the mold closing accuracy, and the use is stable.

[0036] Specific usage and function of this embodiment: In the present invention, the mold assembly 1 can realize the injection molding operation of the workpiece. At the same time, the mold assembly 1 also has the function of automatic demoulding, which facilitates the processing operation. When the upper mold 101 is inserted into the top of the lower mold 102 to complete the mold closing action, the upper mold 101 can drive the separation mold 103 to move down to the processing position by resisting and squeezing the track-shaped rod 1031, and at this time, the separation top spring 1032 is in a compressed state. After the upper mold 101 and the lower mold 102 are spliced ​​and molded, the molten plastic material can be injected through the injection channel for injection molding. The separation mold 103 can realize the shaping of the bottom of the workpiece, and the injection mold cavity inside the lower mold 102 and the side of the track-shaped rod 1031 can be the side of the workpiece The upper mold 101 can shape the bottom and middle space of the workpiece. After the processing is completed and the cooling is completed, the upper mold 101 is lifted to separate it from the lower mold 102. At this time, under the action of the separation top spring 1032, the separation mold 103 will follow the lifting of the upper mold 101 and push the workpiece out of the lower mold 102 to complete the demoulding and taking operation. The auxiliary separation component 2 can vibrate inside the lower mold 102 when the upper mold 101 and the lower mold 102 are separated. The vibration can prevent the workpiece from adhering to the injection mold cavity of the lower mold 102, which facilitates the demoulding operation of the workpiece and avoids the damage and cracking of the workpiece during demoulding. When the upper mold 101 moves upward (separated from the lower mold 102), At this time, the driving rack 1012 can drive the driving shaft 201 to rotate forward through the driving gear 2011, and the driving shaft 201 can drive the control driving block 2012 to rotate synchronously when rotating forward. When the control driving block 2012 follows the driving shaft 201 to rotate forward, the straight edge of the control driving block 2012 will be engaged with the straight edge of the tooth groove 2021, thereby driving the control disk 202 to rotate forward synchronously. When the control disk 202 rotates forward, the vibration protrusion 2022 will resist the vibration hammer 203 to achieve the vibration action of the vibration hammer 203 frequently hitting the lower mold 102. When the vibration protrusion 2022 follows the control disk 202 to rotate forward, it can push the vibration hammer 203 to one side and compress the energy storage top spring 2031 through resistance and extrusion. When it rotates to the vibration When the upper mold 101 is moved to the position of the offset table 20221, the resistance effect of the vibration protrusion 2022 on the vibration hammer 203 is temporarily invalid, so that the energy storage top spring 2031 is released and drives the vibration hammer 203 to move quickly to hit the inside of the lower mold 102 to complete the vibration action. The continuous upward movement of the upper mold 101 will cause the above-mentioned action to be triggered cyclically and frequently, thereby realizing the function of vibration-assisted demoulding. The auxiliary separation component 2 will not trigger the vibration function and action when the upper mold 101 moves downward (joined with the lower mold 102). When the upper mold 101 moves downward, the driving rack 1012 can drive the driving shaft 201 to reverse through the driving gear 2011, and the vibration offset table 20221 will jam one end of the vibration hammer 203, making it impossible for the control disk 202 to reverse.Therefore, the bevel of the control driving block 2012 will contact and squeeze the bevel of the control tooth groove 2021, and the control driving block 2012 will move toward the inside of the driving shaft 201 to avoid and compress the positioning top spring 2013. While not blocking the device, it can also prevent the auxiliary separation component 2 from vibrating during the mold closing (upper mold 101 moves down) action, resulting in a decrease in mold closing accuracy.

[0037] In another embodiment, the energy storage top springs 2031 of different specifications can be replaced for assembly and use. The energy storage top springs 2031 of different specifications have different release forces on the vibrating hammer 203 after compression and energy storage, thereby changing the vibration force of the auxiliary separation component 2, being able to adapt to the use of different types of injection molding molds, and improving the adaptability of the device.

[0038] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An injection mold for auxiliary separation, comprising: A mold assembly (1), wherein the mold assembly (1) comprises an upper mold (101) and a lower mold (102), wherein the upper mold (101) is plugged into the top of the lower mold (102); characterized in that the mold assembly (1) also comprises a separation mold (103), wherein the separation mold (103) is plugged into the injection mold cavity of the lower mold (102); an auxiliary separation assembly (2), wherein the auxiliary separation assembly (2) comprises a drive shaft (201), a control disk (202) and a vibrating hammer (203), wherein the drive shaft (201) is rotatably connected to the interior of the lower mold (102), the exterior of the control disk (202) is rotatably connected to the interior of the lower mold (102), and the interior of the control disk (202) is rotatably connected to the exterior of the drive shaft (201), and the vibrating hammer (203) is plugged into the interior of the lower mold (102).

2. An auxiliary separation injection mold as claimed in claim 1, characterized in that: A track-shaped rod (1031) is provided on the side of the separation mold (103), and a track-shaped groove (1021) is provided inside the injection mold cavity of the lower mold (102), and the track-shaped rod (1031) is inserted into the inside of the track-shaped groove (1021).

3. An auxiliary separation injection mold as claimed in claim 2, characterized in that: The top shape of the separation mold (103) is complementary to the bottom cross-sectional shape of the injection molded workpiece, and the track-shaped rod (1031) is complementary to the side shape of the injection molded workpiece.

4. An auxiliary separation injection mold as claimed in claim 3, characterized in that: A separation top spring (1032) is provided at the bottom of the separation mold (103), and two ends of the separation top spring (1032) respectively abut against the bottom of the separation mold (103) and the inside of the lower mold (102). When the upper mold (101) and the lower mold (102) are spliced, the upper mold (101) will abut against the track-shaped rod (1031) so that the separation mold (103) is in the lowest use position.

5. An auxiliary separation injection mold as claimed in claim 4, characterized in that: A splicing track rod (1011) is provided at the bottom of the upper mold (101), and a splicing track groove (1022) is provided inside the lower mold (102), and the splicing track rod (1011) is inserted into the splicing track groove (1022).

6. An auxiliary separation injection mold as claimed in claim 5, characterized in that: A driving rack (1012) is provided on the side of the splicing track rod (1011), and a driving gear (2011) is provided on one side of the driving shaft (201), and the driving rack (1012) and the driving gear (2011) are driven by tooth engagement.

7. An auxiliary separation injection mold as claimed in claim 6, characterized in that: A control drive block (2012) is radially inserted into the interior of the other side of the drive shaft (201), and a positioning top spring (2013) is provided inside the control drive block (2012), with two ends of the positioning top spring (2013) respectively abutting against the interior of the control drive block (2012) and the interior of the drive shaft (201).

8. An auxiliary separation injection mold as claimed in claim 7, characterized in that: The control disc (202) is provided with a control tooth groove (2021) inside, and the cross-sectional shapes of a single tooth groove of the control tooth groove (2021) and the outer end block of the control driving block (212) are both right triangles, and when the splicing track rod (1011) moves upward, the straight edge of the block of the control driving block (2012) and the straight edge of the tooth groove of the control tooth groove (221) are engaged.

9. An auxiliary separation injection mold as claimed in claim 8, characterized in that: An energy storage top spring (2031) is provided inside the vibrating hammer (203), and two ends of the energy storage top spring (2031) respectively abut against the inside of the vibrating hammer (203) and the inside of the lower mold (102).

10. An auxiliary separation injection mold according to claim 9, characterized in that: A vibration protrusion (2022) is provided on the side of the control disk (202), and a vibration offset platform (20221) is provided on the vibration protrusion (2022) in a radial and linear manner, and one end of the vibration hammer (203) abuts against the outside of the vibration protrusion (2022).

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