Injection mold forming mechanism and multi-injection forming mold

Abstract

The utility model discloses an injection mold forming mechanism and a multi-injection forming mold, the injection mold forming mechanism comprises a forming insert, a first injection wedge block and a second injection wedge block, the first injection wedge block and the second injection wedge block are respectively arranged on two sides of the forming insert, and the forming insert is provided with a forming outline. When the first injection wedge block does linear motion in the first direction, the first wedge-shaped face of the first injection wedge block abuts against the first inclined face of the forming insert, the forming insert is pushed to rotate around the rotating shaft in the forward direction to the mold closing position, the forming contour is matched with the complementary contour of an inner cavity of a product, and precise mold closing is achieved. When the second injection wedge block does linear motion in the second direction, the second wedge-shaped face of the second injection wedge block abuts against the second inclined face of the forming insert, the forming insert is pushed to reversely rotate around the rotating shaft to the mold opening position, and mutual interference between the product and the forming insert during demolding is avoided. Under the sequential action of the first injection wedge block and the second injection wedge block, the forming insert completes mold closing and mold opening through rotation, and a high-precision special structure is machined in a limited space of a product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold forming mechanism and a multi-shot molding mold. Background Technology

[0002] In plastic mold design, some existing plastic parts have special structural features such as undercuts, concave sections, and threads. Conventional direct mold opening methods using front and rear molds cannot meet demolding requirements, and lateral core-pulling mechanisms such as angled ejectors or sliders are usually required to achieve molding. Currently, traditional molding methods mainly include core-pulling molding, angled ejector molding, and forced demolding molding, but these methods all have obvious limitations.

[0003] Core-pulling molding requires an additional core-pulling mechanism, which often necessitates a large extraction distance, leading to increased mold size. If the internal space of the product is too small, insufficient stroke may prevent successful demolding. Similarly, the distance between the molding area and the ejector plate in angled ejector molding is relatively large, and insufficient stroke within the limited injection space can also affect demolding. Forced demolding relies on the elastic deformation of the material for forced demolding, which can easily cause deformation of special features such as undercuts, making it difficult to meet high-precision molding requirements.

[0004] Therefore, how to process high-precision special structures within the limited space of plastic parts is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide an injection mold forming mechanism and a multi-shot molding mold, in which the molding insert can alternately close and open the mold under the alternating push of the first and second injection wedges, so as to realize the processing of high-precision special structures within the limited space of the product, and solve the technical problem that it is difficult to process high-precision special structures within the limited space of plastic parts.

[0006] To achieve the above objectives, this utility model provides an injection mold forming mechanism, comprising:

[0007] A molded insert is rotatably mounted about a rotation axis. The molded insert has a molded contour that matches the complementary contour of the product's inner cavity.

[0008] The first injection wedge is disposed on the first side of the molding insert; the first injection wedge has a first wedge-shaped surface, which cooperates with the first inclined surface of the molding insert; when the first injection wedge moves linearly along the first direction, the first wedge-shaped surface is used to push the molding insert to rotate around the rotation axis to the mold closing position through the first inclined surface.

[0009] The second injection wedge is located on the second side of the molding insert. The second injection wedge has a second wedge-shaped surface that engages with the second inclined surface of the molding insert. When the second injection wedge moves linearly along the second direction, the second wedge-shaped surface is used to push the molding insert to rotate in the opposite direction around the rotation axis to the mold opening position through the second inclined surface.

[0010] Among them, the center lines of the first direction, the second direction, and the rotation axis are perpendicular to each other.

[0011] In some embodiments, it also includes:

[0012] The first linear drive unit is fixedly connected to the first wedge block, and the first linear drive unit is used to drive the first wedge block to perform linear reciprocating motion along the first direction;

[0013] Mold closing position detection component, used to detect whether the molding insert has rotated to the mold closing position;

[0014] The controller is connected to the first linear drive and the mold closing position detection component respectively; the controller is used to control the first linear drive to stop extending when the molding insert rotates to the mold closing position according to the signal fed back by the mold closing position detection component.

[0015] In some embodiments, it also includes:

[0016] Mold closing timer: The mold closing timer is used to record the mold closing time period of the molded insert at the mold closing position;

[0017] The mold closing timer is connected to the controller. The controller is used to control the first linear drive to start retracting when the mold closing time reaches the set time period, so that the first injection wedge block separates from the molding insert.

[0018] In some embodiments, it also includes:

[0019] The second linear drive is fixedly connected to the second wedge block and is used to drive the second wedge block to perform linear reciprocating motion along the second direction.

[0020] The first reset detection element is used to detect whether the first wedge block has reached the first initial position.

[0021] The second linear drive and the first reset detection are respectively connected to the controller; the controller is used to control the second linear drive to start extending outward according to the signals fed back by the mold closing timer and the first reset detection when the mold closing time period reaches the set time period and the first injection wedge reaches the first initial position.

[0022] In some embodiments, it also includes:

[0023] Mold opening position detection component, used to detect whether the molded insert has rotated to the mold opening position;

[0024] The mold opening position detection component is connected to the controller. The controller is used to control the second linear drive component to stop extending when the molded insert rotates to the mold opening position based on the signal fed back by the mold opening position detection component.

[0025] In some embodiments, the first wedge block pushes a notch toward one end of the molded insert, the notch being formed by the intersection of a first wedge-shaped surface and a first positioning surface, the first positioning surface abutting against the first end face of the molded insert.

[0026] In some embodiments, it also includes:

[0027] The first guide seat is fixedly installed and can be slidably engaged with the first injection wedge block along the first direction. The first guide seat is used to guide the molding insert to move linearly along the first direction. A first guide rail and a first slide groove are provided between the first guide seat and the first injection wedge block to cooperate with each other.

[0028] The second guide seat is fixedly installed and can slide with the second injection wedge block along the second direction. The second guide seat is used to guide the molding insert to move linearly along the second direction. A second guide rail and a second slide groove are provided between the second guide seat and the second injection wedge block to cooperate with each other.

[0029] In some embodiments, the side of the molded insert away from the molded contour has a side mating surface; further comprising:

[0030] The mold opening limit seat has a limiting inclined surface; when the molded insert rotates to the mold opening position, the limiting inclined surface abuts against the side mating surface to restrict the molded insert from continuing to rotate in the opposite direction.

[0031] In some embodiments, a clearance notch is provided at one end of the molding profile facing the first injection wedge block, the clearance notch being used to avoid the product sidewall; a side positioning surface is formed on the side of the clearance notch facing the product sidewall; the molding profile is specifically a rectangular groove formed on the side positioning surface.

[0032] This utility model also provides a multi-shot molding die, including the above-mentioned injection mold forming mechanism.

[0033] Compared with the prior art, the present invention optimizes the injection mold forming mechanism. The optimized injection mold forming mechanism includes a forming insert and a first injection wedge block and a second injection wedge block respectively disposed on both sides of the forming insert. The forming insert has a forming contour.

[0034] When the first injection wedge moves in a straight line along the first direction, the first wedge-shaped surface of the first injection wedge abuts against the first inclined surface of the molding insert, pushing the molding insert to rotate around the rotation axis in the positive direction to the mold closing position. At this time, the molding contour and the complementary contour of the product cavity are matched to achieve precise mold closing.

[0035] When the second injection wedge moves in a straight line along the second direction, the second wedge-shaped surface of the second injection wedge abuts against the second inclined surface of the molding insert, pushing the molding insert to rotate in the opposite direction around the rotation axis to the mold opening position, ensuring that the molding contour and the complementary contour gradually separate, and avoiding interference between the product and the molding insert during demolding.

[0036] Therefore, it can be seen that in this utility model, the first wedge-shaped surface and the first inclined surface, as well as the second wedge-shaped surface and the second inclined surface, form a wedge-face mating structure, effectively improving the molding accuracy of the molding insert. In this utility model, the molding insert, driven by the first and second injection wedge blocks, rotates to achieve mold opening and closing, forming a rotary mold opening and closing structure, which can adapt to limited spaces. Moreover, the mold opening trajectory of the molding insert changes from the original straight line trajectory to an arc trajectory, avoiding the risk of contour scratching caused by the traditional straight line trajectory. Therefore, the injection mold molding mechanism of this utility model can process high-precision special structures within the limited space of the product. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0038] Figure 1 A diagram showing the state of the first injection wedge block pushing the molding insert to rotate in the positive direction around the rotation axis in the injection mold forming mechanism provided in this embodiment of the utility model;

[0039] Figure 2 A diagram showing the state of the second injection wedge pushing the molding insert to rotate in the opposite direction around the rotation axis in the injection mold forming mechanism provided in this embodiment of the utility model;

[0040] Figure 3 A schematic diagram of the molding insert of the injection mold forming mechanism provided in the embodiment of this utility model;

[0041] Figure 4 A diagram showing the state of the first injection wedge block abutting against the molding insert in the injection mold forming mechanism provided in this embodiment of the utility model;

[0042] Figure 5A diagram showing the state of the injection mold forming mechanism provided in this embodiment of the present invention when the first injection wedge pushes the molding insert to the mold closing position;

[0043] Figure 6 A diagram showing the state of the second injection wedge block abutting against the molding insert in the injection mold forming mechanism provided in this embodiment of the utility model.

[0044] Figure 7 This is a diagram showing the state of the second injection wedge block pushing the molding insert to the mold opening position in the injection mold forming mechanism provided in this embodiment of the utility model.

[0045] In the attached diagrams 1 and 4, the straight arrows indicate the direction of movement of the first shot wedge block, and the full arrows indicate the direction of rotation of the forming insert;

[0046] In the attached diagrams 2 and 6, the straight arrows indicate the direction of movement of the second wedge block, and the full arrows indicate the direction of rotation of the forming insert.

[0047] The attached figures are labeled as follows:

[0048] 1. Molding insert; 2. Rotating shaft; 3. Product inner cavity; 4. First injection wedge; 5. Second injection wedge;

[0049] The molding outline 11, the first inclined surface 12, the second inclined surface 13, the side mating surface 14, and the clearance notch 15;

[0050] Side positioning surface 151;

[0051] Complementary contours 31;

[0052] First wedge-shaped surface 41;

[0053] Second wedge surface 51. Detailed Implementation

[0054] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0055] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] This utility model discloses an injection mold forming mechanism, as shown in the attached figure. Figure 1 and 2As shown, the device includes a molding insert 1, a first injection wedge block 4, and a second injection wedge block 5. A rotating shaft 2 is fixedly mounted on the frame. The middle section of the molding insert 1 has a rotating hole, which is rotatably engaged with the rotating shaft 2, allowing the molding insert 1 to be rotatably mounted. The molding insert 1 has a molding contour 11, which shapes a complementary contour 31 on the inner cavity 3 of the product. The molding contour 11 and the complementary contour 31 engage to form a concave-convex mating structure.

[0057] As attached Figure 1 As shown, the first injection wedge block 4 is disposed on the first side of the forming insert 1 and moves linearly along the first direction, that is, along the Y-axis. The first injection wedge block 4 has a first wedge-shaped surface 41, as shown in the attached figure. Figure 3 and 4 As shown. The first wedge-shaped surface 41 mates with the first inclined surface 12 of the molded insert 1, as shown in the attached figure. Figure 1 and 5 As shown.

[0058] As attached Figure 2 As shown, the second injection wedge 5 is disposed on the second side of the forming insert 1 and moves linearly along the second direction, that is, along the X-axis. The second injection wedge 5 has a second wedge-shaped surface 51, as shown in the attached figure. Figure 3 and 6 As shown. The second wedge-shaped surface 51 mates with the second inclined surface 13 of the molded insert 1, as shown in the attached figure. Figure 2 and 7 As shown. That is to say, a wedge-shaped mating structure is formed between the first wedge-shaped surface 41 and the first inclined surface 12, and between the second wedge-shaped surface 51 and the second inclined surface, which makes the transmission smoother and effectively improves the forming accuracy of the molding insert 1.

[0059] As attached Figure 4 and 5 As shown, when the first injection wedge block 4 moves in a straight line along the first direction, the first wedge-shaped surface 41 of the first injection wedge block 4 abuts against the first inclined surface 12 of the molding insert 1, pushing the molding insert 1 to rotate in the positive direction around the rotation axis 2 to the mold closing position. That is, the first injection wedge block 4 pushes the molding insert 1 to rotate clockwise to the mold closing position by moving downward. At this time, the molding contour 11 and the complementary contour 31 of the product cavity 3 are matched to achieve precise mold closing.

[0060] As attached Figure 6 and 7 As shown, when the second injection wedge block 5 moves in a straight line along the second direction, the second wedge surface 51 of the second injection wedge block 5 abuts against the second inclined surface 13 of the molding insert 1, pushing the molding insert 1 to rotate in the opposite direction around the rotation axis 2 to the mold opening position. That is, the second injection wedge block 5 pushes the molding insert 1 to rotate counterclockwise to the mold opening position by moving to the right, ensuring that the molding contour 11 and the complementary contour 31 gradually separate, and avoiding the molding insert 1 from scratching the complementary contour 31.

[0061] The first direction, the second direction, and the centerline of rotation axis 2 are all mutually perpendicular. The first direction in this text refers to the... Figure 1 and 2 The direction indicated by the Y-axis, and the second direction mentioned in the text refers to the attached direction. Figure 1 and 2 The direction indicated by the X-axis.

[0062] In other words, the molding insert 1 is pushed by the first injection wedge 4 and the second injection wedge 5 to achieve mold opening and closing through rotation, forming a rotating mold opening and closing structure that can adapt to the limited processing space of the product cavity 3; moreover, the mold opening trajectory of the molding insert 1 is changed from the original straight trajectory to an arc trajectory, avoiding the risk of contour scratching caused by the traditional straight trajectory.

[0063] In summary, under the alternating push of the first ejector wedge 4 and the second ejector wedge 5, the molding insert 1 in this utility model can reciprocate between the mold closing position and the mold opening position, alternately performing mold closing and mold opening, thereby realizing the processing of a high-precision special structure within the limited space of the product.

[0064] In a preferred embodiment, the injection mold forming mechanism further includes a first linear drive, a mold closing position detection component, and a controller. The first linear drive is fixedly connected to the first injection wedge 4, and is used to drive the first injection wedge 4 to perform linear reciprocating motion along a first direction, so as to... Figure 1 Taking the current view as an example, the first injection wedge block 4 reciprocates vertically along the Y-axis. The first linear drive can be a hydraulic cylinder, a pneumatic cylinder, or a linear motor, without specific limitations. The mold closing position detection component is used to detect whether the molding insert 1 has rotated to the mold closing position. Specifically, the mold closing position detection component can be a position sensor or an angle sensor, etc. The controller is connected to the first linear drive and the mold closing position detection component respectively.

[0065] When the mold closing position detection component detects that the molding insert 1 has rotated to the mold closing position, the mold closing position detection component sends a signal to the controller. After the controller judges and processes the signal, the controller sends a command to the first linear drive component, which controls the first linear drive component to automatically stop extending outward, so that the first injection wedge block 4 automatically stops in the mold closing position. The first injection wedge block 4 applies a thrust to the molding insert 1, ensuring that the molding insert 1 remains stably in the mold closing position, providing stable support for the molding insert 1 and improving the mold closing accuracy.

[0066] In a preferred embodiment, the injection mold forming mechanism further includes a mold closing timer connected to the controller, which is used to record the mold closing time period of the molded insert 1 in the mold closing position.

[0067] When the mold closing timer detects that the molded insert 1 has reached the set time period in the mold closing position, the mold closing timer sends a signal to the controller. After the controller processes the signal, it sends a command to the first linear drive, which automatically retracts, driving the first injection wedge 4 to move upwards away from the molded insert 1 until the first injection wedge 4 separates from the molded insert 1. This avoids collisions and interference between the molded insert 1 and the first injection wedge 4 when the second injection wedge 5 moves, reducing the risk of the molding die scratching the complementary contour 31 and achieving higher molding accuracy. The set time period mentioned in this text refers to the optimal time period required for the molded contour 11 to shape the complementary contour 31, which is related to factors such as the material of the product.

[0068] In a preferred embodiment, the injection mold forming mechanism further includes a second linear drive and a first reset detection component, both connected to the controller. The second linear drive is fixedly connected to the second injection wedge 5, and is used to drive the second injection wedge 5 to perform linear reciprocating motion along a second direction, thereby... Figure 1 Taking the current view as an example, the second wedge block 5 performs a horizontal linear reciprocating motion along the X-axis. The second linear drive can also be a hydraulic cylinder, a pneumatic cylinder, or a linear motor, etc. The first reset detection element is used to detect whether the first wedge block 4 has reached the first initial position; specifically, it can be a position sensor, but is not limited to this.

[0069] When the mold closing timer detects that the molded insert 1 has been in the mold closing position for a set period of time, and the first reset detector detects that the first injection wedge 4 has reached the first initial position, the mold closing timer and the first reset detector simultaneously send signals to the controller. After the controller processes the signals, it sends a command to the second linear drive, which automatically extends and pushes the second injection wedge 5 to move in a straight line in the second direction from the second initial position. This pushes the molded insert 1 to rotate counterclockwise to the mold opening position. This process achieves a high degree of automation and control precision, improving molding efficiency and accuracy. In other words, the second injection wedge 5 only moves after the first injection wedge 4 has completely retracted; the first injection wedge 4 moves before the second injection wedge, and the two do not move simultaneously to avoid mutual interference.

[0070] The first initial position in the text refers to the initial position when the first wedge block 4 stops moving in a straight line, and the second initial position refers to the initial position when the second wedge block 5 stops moving in a straight line.

[0071] In a preferred embodiment, the injection mold forming mechanism further includes a mold opening position detection component connected to the controller. The mold opening position detection component is used to detect whether the molding insert 1 has rotated to the mold opening position. Specifically, it can be a position sensor, but is not limited to this.

[0072] When the mold opening position detection component detects that the molding insert 1 has rotated to the mold opening position, the mold opening position detection component sends a signal to the controller. After the controller judges and processes the signal, the controller sends a command to the second linear drive component, which controls the second linear drive component to automatically stop extending outward, so that the second injection wedge block 5 automatically stops at the mold opening position, ensuring that the molding insert 1 remains stably in the mold opening position, avoiding the molding contour 11 from scratching the complementary contour 31 during the product removal process, and achieving high molding accuracy.

[0073] As a preferred embodiment, as shown in the appendix Figure 4 As shown, the first injection wedge block 4 pushes the notch 42 at one end of the molding insert 1. The notch 42 is formed by the intersection of the first wedge surface 41 and the first positioning surface 43. The first wedge surface 41 abuts against the first inclined surface 12 of the molding insert 1, and the first positioning surface 43 abuts against the first end face of the molding insert 1. The first wedge surface 41 can be used to push the molding insert 1 to rotate stably, and the molding insert 1 can be restricted from leaving the first wedge surface 41 during the rotation process. This avoids affecting the molding accuracy of the product due to the movement of the molding insert 1 relative to the first injection wedge block 4 when the mold is closed.

[0074] In a preferred embodiment, the injection mold forming mechanism further includes a first guide seat and a second guide seat fixedly disposed thereon. The first guide seat is slidably engaged with the first injection wedge 4 along a first direction to guide the molding insert 1 to move linearly along the first direction. The second guide seat is slidably engaged with the second injection wedge 5 along a second direction to guide the molding insert 1 to move linearly along the second direction.

[0075] Specifically, a first guide rail and a first sliding groove are provided between the first guide seat and the first injection wedge 4, and a second guide rail and a second sliding groove are provided between the second guide seat and the second injection wedge 5. Both the first and second sliding rails can be T-shaped sliding rails, and both the first and second sliding grooves can be T-shaped sliding grooves.

[0076] As a preferred embodiment, the molded insert 1 has a side mating surface 14 on the side away from the molded contour 11, as shown in the attached figure. Figure 3 As shown. The injection mold forming mechanism also includes a mold opening limit seat, which has a limiting inclined surface. When the molding insert 1 rotates to the mold opening position, the limiting inclined surface abuts against the side mating surface 14 to limit the molding insert 1 from continuing to rotate in the opposite direction, ensuring that the molding insert 1 is reliably stopped in the mold opening position, and avoiding excessive flipping of the molding insert 1 in the mold opening position so that the first wedge surface 41 of the first injection wedge block 4 cannot be aligned with the first inclined surface 12 of the molding insert 1.

[0077] As a preferred embodiment, as shown in the appendix Figure 3As shown, the end of the molding profile 11 facing the first injection wedge block 4 is provided with a clearance notch 15. The clearance notch 15 is used to avoid interference between the molding insert 1 and the product cavity 3, preventing the molding insert 1 from failing to reach the mold closing position and ensuring that the molding insert 1 can be smoothly molded. A side positioning surface 151 is formed on the side of the clearance notch 15 facing the product sidewall. The molding profile 11 is specifically a rectangular groove formed on the side positioning surface 151, and the complementary profile 31 of the product cavity 3 is specifically a rectangular protrusion. The rectangular groove and the rectangular protrusion fit together, resulting in high molding accuracy. Of course, interchange the profile shapes of the molding profile 11 and the complementary profile 31 without affecting the purpose of this utility model. However, no matter how the profile shapes of the molding profile 11 and the complementary profile 31 are changed, it must be ensured that a convex-concave fit structure is formed between the molding profile 11 and the complementary profile 31.

[0078] It should be noted that the controller should include a signal receiving unit, a signal judging unit, and a signal transmitting unit. The signal receiving unit receives electrical signals sent by detection components such as the mold closing position detector, the mold closing timer, or the first reset detector. The signal judging unit is electrically connected to the signal receiving unit so that it can determine whether the signal received by the signal receiving unit is a trigger signal. The signal transmitting unit is electrically connected to the signal judging unit so that it sends the judgment signal generated by the signal judging unit to the execution components such as the first linear drive or the second linear drive. The specific arrangement of the signal receiving unit, the signal judging unit, and the signal transmitting unit can refer to the prior art; in this utility model, only the application scenario of the above three components has been changed, and no substantial improvement has been made. Obviously, controllers with this structure are widely used in existing automatic control equipment, such as MCUs, DSPs, or microcontrollers. The key point of this utility model is that the controller combines each detection component and each execution component in a pairwise correspondence.

[0079] This utility model also provides a multi-shot molding die, which includes the above-mentioned injection molding mechanism and has the same beneficial effects.

[0080] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0081] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An injection mold forming mechanism characterized by comprising: The molding insert (1) is rotatably arranged around a rotation axis (2), and is provided with a molding profile (11) matched with a complementary profile (31) of a product inner cavity (3). A first shooting wedge (4) is arranged on a first side of the molding insert (1), and has a first wedge surface (41) matched with a first inclined surface (12) of the molding insert (1); when the first shooting wedge (4) moves linearly in a first direction, the first wedge surface (41) is used to push the molding insert (1) to rotate forward around the rotation axis (2) to a closed mold position through the first inclined surface (12). A second shooting wedge (5) is arranged on a second side of the molding insert (1), and has a second wedge surface (51) matched with a second inclined surface (13) of the molding insert (1); when the second shooting wedge (5) moves linearly in a second direction, the second wedge surface (51) is used to push the molding insert (1) to rotate reversely around the rotation axis (2) to an open mold position through the second inclined surface (13). The first direction, the second direction and the center line of the rotation axis (2) are perpendicular to each other. Further comprising:

2. The injection mold forming mechanism according to claim 1, characterized by, A first linear driving member fixedly connected with the first shooting wedge (4), and used to drive the first shooting wedge (4) to move linearly and reciprocally in the first direction; A closed mold position detection member used to detect whether the molding insert (1) is rotated to the closed mold position; A controller connected with the first linear driving member and the closed mold position detection member respectively; the controller is used to control the first linear driving member to stop extending out according to a signal fed back by the closed mold position detection member when the molding insert (1) is rotated to the closed mold position. Further comprising:

3. The injection mold forming mechanism according to claim 2, wherein A closed mold timer used to record a closed mold time period of the molding insert (1) in the closed mold position; The closed mold timer is connected with the controller, and the controller is used to control the first linear driving member to start retracting to separate the first shooting wedge (4) from the molding insert (1) according to a signal fed back by the closed mold timer when a set time period is reached. Further comprising:

4. The injection mold forming mechanism according to claim 3, wherein A second linear driving member fixedly connected with the second shooting wedge (5), and used to drive the second shooting wedge (5) to move linearly and reciprocally in the second direction; A first reset detection member used to detect whether the first shooting wedge (4) reaches a first initial position; ​ The second linear driving member and the first reset detection member are connected with the controller respectively; the controller is used for controlling the second linear driving member to start extending out according to the signals fed back by the clamp timer and the first reset detection member when the clamp time period reaches the set time period and the first shooting wedge block (4) reaches the first initial position.

5. The injection mold forming mechanism according to claim 4, wherein Further comprising: An open-die position detection member, which is used for detecting whether the forming insert (1) rotates to the open-die position; The open-die position detection member is connected with the controller, and the controller is used for controlling the second linear driving member to stop extending out according to the signal fed back by the open-die position detection member when the forming insert (1) rotates to the open-die position.

6. The injection mold forming mechanism according to any one of claims 1 to 5, characterized by The first shooting wedge block (4) pushes a pushing gap (42) towards one end of the forming insert (1), the pushing gap (42) is formed by the intersection of the first wedge surface (41) and the first positioning surface (43), and the first positioning surface (43) abuts against the first end surface of the forming insert (1).

7. The injection mold forming mechanism according to any one of claims 1 to 5, characterized by Further comprising: A first guide seat, which is fixedly arranged and slidably matched with the first shooting wedge block (4) along the first direction, and used for guiding the forming insert (1) to move linearly along the first direction, and first guide rails and first sliding grooves matched with each other are arranged between the first guide seat and the first shooting wedge block (4); A second guide seat, which is fixedly arranged and slidably matched with the second shooting wedge block (5) along the second direction, and used for guiding the forming insert (1) to move linearly along the second direction, and second guide rails and second sliding grooves matched with each other are arranged between the second guide seat and the second shooting wedge block (5).

8. The injection mold forming mechanism according to any one of claims 1 to 5, characterized by The side of the forming insert (1) away from the forming contour (11) is provided with a side edge matching surface (14); further comprising: An open-die limiting seat, which is provided with a limiting inclined surface; when the forming insert (1) rotates to the open-die position, the limiting inclined surface abuts against the side edge matching surface (14) to limit the forming insert (1) from continuing to rotate reversely.

9. The injection mold forming mechanism according to any one of claims 1 to 5, characterized by, The end of the forming contour (11) towards the first shooting wedge block (4) is provided with an avoiding gap (15) for avoiding the product side wall; the side of the avoiding gap (15) towards the product side wall is formed with a side positioning surface (151); and the forming contour (11) is specifically a rectangular groove formed on the side positioning surface (151).

10. A multi-shot molding tool, characterized by The injection mold forming mechanism according to any one of claims 1 to 9. The injection mold forming mechanism according to any one of claims 1 to 9.

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