Injection mold for forming side face inwards-concave structure

Abstract

The utility model relates to an injection mold for forming a side surface concave structure. The injection mold comprises a base and a forming mechanism, the forming mechanism comprises a front forming die, a rear forming die, a first lateral forming die and an inclined sliding forming die; the front forming die and the rear forming die are arranged front and back, and the rear forming die is fixed on the base; the front forming die is arranged on the base in a sliding manner; the first lateral forming die is arranged on the base in a sliding mode and located beside the rear forming die, and a first forming structure is formed on the first lateral forming die. The inclined sliding forming die is slidably arranged on the rear forming die, a second forming structure is formed on the inclined sliding forming die, and the inclined sliding forming die can eject out a finished product to be separated from the forming mechanism through sliding; the front forming die, the first lateral forming die and the inclined sliding forming die perform die assembly action through sliding; during mold closing, the front forming mold, the rear forming mold, the first lateral forming mold and the oblique sliding forming mold define a forming cavity, and the first forming structure and the second forming structure define a first side cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection mold for forming a side concave structure. Background Art

[0002] A three-plate mold is a common injection mold. The traditional three-plate mold includes a front mold and a back mold. The front mold slides back and forth to close the mold with the back mold to form the molding cavity of the corresponding product. In order to produce some products with side concave structures, the existing three-plate mold is also equipped with a side mold. The side mold slides sideways to join the mold to form the product's side concave structure. Figure 1 and Figure 2 The figure shows a plastic finished product, on one side of which a first snap-fit structure 1' and a second snap-fit structure 2' arranged side by side are formed. The first snap-fit structure 1' includes a recessed structure 11' and two spherical protrusions 12'. The two spherical protrusions 12' are arranged on two opposite inner sides of the recessed structure 11'. In production, in order to form the structure of the spherical protrusion 12' as shown in the figure, two side molds are required to enclose it. However, in this plastic finished product, due to the obstruction of the second snap-fit structure 2', the shape structure of the first snap-fit structure 1' cannot be formed by the combination of two relatively sliding side molds. As a result, this plastic finished product with a more complex side concave structure cannot be produced by the existing three-plate mold. Therefore, it is necessary to provide a new injection mold to solve the above technical problems. Utility Model Content

[0003] The purpose of the utility model is to provide an injection mold for forming a side concave structure, which has a simple structure and a reasonable design and can be used to produce plastic products with relatively complex side concave structures.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an injection mold for forming a side concave structure, comprising a base and a molding mechanism; the molding mechanism comprises a front molding die, a rear molding die, a first lateral molding die and an oblique sliding molding die; the front molding die and the rear molding die are arranged front and back, and the rear molding die is fixed on the base; the front molding die is slidably arranged on the base, and the sliding direction of the front molding die is parallel to the central axis of the rear molding die; the first lateral molding die is slidably arranged on the base and is located on the side of the rear molding die, and the sliding direction of the first lateral molding die is perpendicular to the sliding direction of the front molding die, and the first lateral molding die is formed on the first lateral molding die. There is a first molding structure; the oblique sliding molding die can be slidably arranged on the rear molding die, and the angle formed between the sliding direction of the oblique sliding molding die and the sliding direction of the front molding die is an acute angle, and a second molding structure is formed on the oblique sliding molding die, and the oblique sliding molding die can eject the finished product from the molding mechanism by sliding; the front molding die, the first lateral molding die, and the oblique sliding molding die perform a mold closing action by sliding; when closing the mold: the front molding die, the rear molding die, the first lateral molding die, and the oblique sliding molding die are enclosed to form a molding cavity, and the molding cavity includes a main cavity and a first side cavity which are interconnected, and the first molding structure and the second molding structure are enclosed to form the first side cavity.

[0005] The working principle of this utility model:

[0006] Since the sliding direction of the first lateral molding mold is perpendicular to the sliding direction of the front molding mold, the angle formed between the sliding direction of the oblique sliding molding mold and the sliding direction of the front molding mold is an acute angle, so that the sliding path of the first lateral molding mold and the oblique sliding molding mold will not be blocked by other parts of the molding cavity, and thus the first lateral molding mold and the oblique sliding molding mold can also be more easily enclosed to form the first side cavity of the required part structure, and the position setting of the first side cavity is more flexible, so that this injection mold can be suitable for producing plastic finished products with more complex side concave structures.

[0007] Furthermore, as described above, an injection mold for forming a side concave structure, the molding mechanism also includes a second lateral molding mold, the second lateral molding mold is slidably arranged on the base, the second lateral molding mold and the first lateral molding mold are respectively located on opposite sides of the rear molding mold, the sliding direction of the second lateral molding mold is parallel to the sliding direction of the first lateral molding mold, and a third molding structure is formed on the second lateral molding mold; a fourth molding structure is formed on the rear molding mold, and a fifth molding structure is formed on the front molding mold, and the second lateral molding mold performs a mold closing action by sliding; when closing the mold: the third molding structure, the fourth molding structure, and the fifth molding structure enclose a second side chamber, the second side chamber is connected to the main chamber, and the second side chamber and the first side chamber are both on the same side of the main chamber.

[0008] Furthermore, as described above, an injection mold for forming a side concave structure, the front molding mold is formed with a first front positioning slide, a second front positioning slide and a front molding structure; one end of the first front positioning slide is connected to a side elevation of the front molding mold, and the other end of the first front positioning slide is connected to the front molding structure; one end of the second front positioning slide is connected to the other side elevation of the front molding mold, and the other end of the second front positioning slide is connected to the front molding structure to form the fifth molding structure; a first rear positioning slide, a second rear positioning slide and a rear molding structure are formed on the rear molding mold, one end of the first rear positioning slide is connected to a side elevation of the rear molding mold, and the other end of the first rear positioning slide is connected to the rear molding structure, an inclined slide is formed on the bottom of the first rear positioning slide, and the angle formed between the central axis of the inclined slide and the central axis of the rear molding mold is an acute angle; the second rear positioning slide One end of the mold is connected to the other side facade of the rear molding mold, and the other end of the second rear positioning slide is connected to the rear molding structure to form the fourth molding structure; the oblique sliding molding mold is slidably arranged in the oblique slide, and the second molding structure of the oblique sliding molding mold protrudes from the bottom of the rear positioning slide; when the mold is closed, the first front positioning slide and the first rear positioning slide are combined to form the first positioning slide, and the second front positioning slide and the second rear positioning slide are combined to form the second positioning slide, and the front molding structure and the rear molding structure are combined to form the main cavity, and the first molding structure of the first lateral molding mold slides along the first positioning slide toward the direction of the main cavity and is combined with the second molding structure of the oblique sliding molding mold to form the first side cavity, and the third molding structure of the second lateral molding mold slides along the second positioning slide toward the direction of the main cavity and is combined with the fourth molding structure and the fifth molding structure to form the second side cavity.

[0009] Furthermore, the injection mold for forming a side concave structure as described above also includes a demolding mechanism, which includes a demolding drive seat and a demolding drive rod; the demolding drive seat is slidably arranged on the base, and the sliding direction of the demolding drive seat is parallel to the sliding direction of the front molding mold; one end of the demolding drive rod is connected and fixed to the demolding drive seat, and the other end of the demolding drive rod is rotatably connected to the oblique sliding molding mold, so that the oblique sliding molding mold is driven by the demolding drive seat to slide.

[0010] Furthermore, as described above, in an injection mold for forming a side concave structure, the demolding mechanism also includes a demolding ejector pin, one end of which is connected and fixed to the demolding drive seat, and the other end of the demolding ejector pin is arranged in the forming cavity, so that the demolding ejector pin can be driven by the demolding drive seat to eject the finished product from the molding mechanism.

[0011] Furthermore, as described above, an injection mold for forming a side concave structure, a guide hole is formed on the first side molding mold; it also includes a sliding mechanism, the sliding mechanism is slidably set on the base, the sliding direction of the sliding mechanism is parallel to the sliding direction of the front molding mold, and a driving guide is installed on the sliding mechanism, and the angle formed between the length direction of the driving guide and the sliding direction of the sliding mechanism is an acute angle, and one end of the driving guide can be slidably extended into the guide hole, so that the sliding mechanism can drive the first side molding mold to slide by sliding; the front molding mold is installed and fixed on the sliding mechanism.

[0012] The cam is secured to the base and has a first end secured thereto, the second end secured to the base being rotatable about the first and second ends of the cam.

[0013] Furthermore, as described above, an injection mold for forming a side concave structure, a mounting groove is formed on the side of the first sliding seat facing away from the base, a clamping groove is formed on the groove surface of the mounting groove, and a mounting channel is formed on the groove bottom of the clamping groove, and the mounting channel is connected to the side of the first sliding seat facing the base; the driving guide is formed with a clamping head and a driving rod in sequence along its axis, the driving rod passes through the mounting groove, the clamping groove, and the mounting channel in sequence and is inserted into the guide hole, and the clamping head is clamped in the clamping groove; and a fixing block is also included, which is detachably embedded and fixed in the mounting groove.

[0014] Furthermore, as described above, an injection mold for forming a side concave structure, the sliding mechanism also includes a third sliding seat, the third sliding seat is slidably set on the base, the sliding direction of the third sliding seat is parallel to the sliding direction of the second sliding seat, the third sliding seat is on the side of the second sliding seat facing away from the first sliding seat, and a pulling piece is provided on the third sliding seat, and a hook-pull protrusion is formed on one end of the pulling piece, and the hook-pull protrusion can be driven by the third sliding seat to extend into the guide channel.

[0015] Furthermore, in an injection mold for forming a side concave structure as described above, a rear cooling channel is formed on the rear molding mold, a first cooling channel is formed on the base, and the first cooling channel is connected to the rear cooling channel to form a first cooling circuit; a front cooling channel is formed on the front molding mold, a second cooling channel is formed on the first sliding seat, and the second cooling channel is connected to the front cooling channel to form a second cooling circuit.

[0016] The technical solution of the utility model has the following beneficial effects: simple structure, reasonable design, and can be used to produce plastic finished products with relatively complex side concave structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural diagram of a plastic finished product in the background art;

[0018] Figure 2 It is a right side view of the plastic finished product in the background art;

[0019] Figure 3 It is a three-dimensional structural diagram of an embodiment;

[0020] Figure 4 It is a front view of an embodiment;

[0021] Figure 5 for Figure 4 The cross-sectional structural diagram in the AA direction;

[0022] Figure 6 for Figure 4 Cross-sectional structural diagram in the BB direction;

[0023] Figure 7 for Figure 4 The cross-sectional structure diagram in CC direction;

[0024] Figure 8 A front view of the first sliding seat of the embodiment;

[0025] Figure 9 A three-dimensional structural diagram of the front molding die of an embodiment;

[0026] Figure 10 A front view of the front molding die of the embodiment;

[0027] Figure 11 A three-dimensional structural diagram of the post-molding mold of an embodiment;

[0028] Figure 12 A front view of the rear molding die of the embodiment;

[0029] Figure 13 is a three-dimensional structural diagram of the first lateral forming die of the embodiment;

[0030] Description of reference numerals:

[0031] 1'-first buckle structure; 11'-notch structure; 12'-spherical protrusion; 2'-second buckle structure;

[0032] 1-base; 11-first cooling channel; 2-molding mechanism; 21-front molding die; 211-first front positioning chute; 212-second front positioning chute; 213-front molding structure; 214-fifth molding structure; 215-injection channel; 216-front cooling channel; 22-rear molding die; 221-first rear positioning chute; 222-second rear positioning chute; 223-rear molding structure; 224-oblique slide; 225-fourth molding structure; 226-rear cooling channel; 23-first lateral molding die; 231-first molding structure; 232-guide hole ;24-second lateral forming mold;25-oblique sliding forming mold;3-demolding mechanism;31-demolding drive seat;32-demolding drive rod;33-demolding ejector rod;4-sliding mechanism;41-first sliding seat;411-installation groove;412-clamping groove;413-installation channel;414-discharge channel;415-guide channel;416-second cooling channel;42-second sliding seat;43-third sliding seat;431-feed port;5-driving guide;51-clamping head;52-driving rod;6-fixing block;7-pulling piece;71-hook pull boss. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings.

[0034] like Figures 3 to 13The embodiment is an injection mold for forming a side concave structure, comprising a base 1 and a molding mechanism 2; the molding mechanism 2 comprises a front molding die 21, a rear molding die 22, a first lateral molding die 23, a second lateral molding die 24 and an oblique sliding molding die 25; the front molding die 21 and the rear molding die 22 are arranged front and back, the rear molding die 22 is fixed on the base 1, and a fourth molding structure 225 is formed on the rear molding die 22; the front molding die 21 is slidably arranged on the base 1, and the sliding direction of the front molding die 21 is parallel to the central axis of the rear molding die 22 , a fifth molding structure 214 is formed on the front molding die 21; the first lateral molding die 23 and the second lateral molding die 24 are slidably arranged on the base 1 and are respectively located on opposite sides of the rear molding die 22, the sliding direction of the first lateral molding die 23 is perpendicular to the sliding direction of the front molding die 21, and the sliding direction of the second lateral molding die 24 is parallel to the sliding direction of the first lateral molding die 23, a first molding structure 231 is formed on the first lateral molding die 23, and a third molding structure is formed on the second lateral molding die 24; the oblique sliding molding die 25 is slidable The oblique sliding forming mold 25 is arranged on the rear forming mold 22, and the included angle between the sliding direction of the oblique sliding forming mold 25 and the sliding direction of the front forming mold 21 is an acute angle. A second forming structure is formed on the oblique sliding forming mold 25, and the oblique sliding forming mold 25 can eject the finished product from the forming mechanism 2 by sliding; the front forming mold 21, the first lateral forming mold 23, the second lateral forming mold 24, and the oblique sliding forming mold 25 perform a mold closing action by sliding; when the mold is closed: the front forming mold 21, the rear forming mold 22, the first lateral forming mold 23, and the oblique sliding forming mold 25 enclose a forming cavity, and the finished product is ejected from the forming mechanism 2. The mold cavity includes a main cavity, a first side cavity and a second side cavity. The front molding mold 21 and the rear molding mold 22 enclose the main cavity, the first molding structure 231 and the second molding structure enclose the first side cavity, the third molding structure, the fourth molding structure 225 and the fifth molding structure 214 enclose the second side cavity, and the first side cavity and the second side cavity are both connected to the main cavity and are on the same side of the main cavity. In this embodiment, the difference between the first lateral molding mold 23 and the second lateral molding mold 24 is only the different structure of the parts used to enclose to form the molding cavity.

[0035] The working principle of this embodiment is as follows:

[0036] Since the sliding direction of the first lateral molding die 23 is perpendicular to the sliding direction of the front molding die 21, the angle formed between the sliding direction of the oblique sliding molding die 25 and the sliding direction of the front molding die 21 is an acute angle, so that the movement of the first lateral molding die 23 and the oblique sliding molding die 25 will not be blocked by other parts of the molding cavity, and thus the first lateral molding die 23 and the oblique sliding molding die 25 can also be more easily enclosed to form the first side cavity of the required part structure, and the position setting of the first side cavity is more flexible, so that this injection mold can be suitable for producing plastic finished products with more complex side concave structures.

[0037] like Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the front molding die 21 is formed with a first front positioning slot 211, a second front positioning slot 212 and a front molding structure 213; one end of the first front positioning slot 211 is connected to a side elevation of the front molding die 21, and the other end of the first front positioning slot 211 is connected to the front molding structure 213; one end of the second front positioning slot 212 is connected to the other side elevation of the front molding die 21, and the other end of the second front positioning slot 212 is connected to the front molding structure 213 and forms the fifth molding structure 2 14; A first rear positioning chute 221, a second rear positioning chute 222 and a rear forming structure 223 are formed on the rear forming mold 22. One end of the first rear positioning chute 221 is connected to a side elevation of the rear forming mold 22, and the other end of the first rear positioning chute 221 is connected to the rear forming structure 223. An oblique slide 224 is formed on the bottom of the first rear positioning chute 221. The angle formed between the central axis of the oblique slide 224 and the central axis of the rear forming mold 22 is an acute angle; the angle of the second rear positioning chute 222 is One end is connected with the other side elevation of the rear forming mold 22, and the other end of the second rear positioning slide 222 is connected with the rear forming structure 223 to form the fourth forming structure 225; the oblique sliding forming mold 25 is slidably set in the oblique slide 224, and the second forming structure of the oblique sliding forming mold 25 protrudes from the bottom of the rear positioning slide; when the mold is closed, the first front positioning slide 211 and the first rear positioning slide 221 are combined to form the first positioning slide, the second front positioning slide 212 and the second rear positioning slide 222 are combined to form the second positioning slide, the front forming structure 213 and the rear forming structure 223 are combined to form the main cavity, the first forming structure of the first lateral forming mold 23 slides along the first positioning slide toward the direction of the main cavity and is combined with the second forming structure of the oblique sliding forming mold 25 to form the first side cavity, the third forming structure of the second lateral forming mold 24 slides along the second positioning slide toward the direction of the main cavity and is combined with the fourth forming structure 225 and the fifth forming structure 214 to form the second side cavity. With such a structure, the front molding die 21, the rear molding die 22, the first lateral molding die 23, the second lateral molding die 24 and the oblique sliding molding die 25 can be conveniently aligned during mold closing, and the mold closing operation is more accurate.

[0038] like Figure 7As shown, this embodiment also includes a demolding mechanism 3, which includes a demolding drive seat 31 and a demolding drive rod 32; the demolding drive seat 31 is slidably arranged on the base 1, and the sliding direction of the demolding drive seat 31 is parallel to the sliding direction of the front molding die 21; one end of the demolding drive rod 32 is connected and fixed to the demolding drive seat 31, and the other end of the demolding drive rod 32 is rotatably connected to the oblique sliding molding die 25, so that the oblique sliding molding die 25 is driven by the demolding drive seat 31 to slide. After injection molding and cooling molding in the molding cavity, the front molding mold 21, the first lateral molding mold 23, and the second lateral molding mold 24 of the molding mechanism 2 slide away from the rear molding mold 22 and separate, and the demolding drive seat 31 drives the demolding drive seat 31 to slide by sliding, so that the plastic finished product is pressed and separated from the rear molding mold 22 by the oblique sliding molding mold 25. Since the oblique sliding molding mold 25 slides obliquely, the side concave structure of the plastic finished product can be prevented from being stuck in the second molding structure of the oblique sliding molding mold 25 and unable to be demolded.

[0039] like Figure 6 As shown, the demoulding mechanism 3 further includes a demoulding ejector pin 33, one end of which is fixedly connected to the demoulding drive seat 31, and the other end of which is disposed in the forming cavity, so that the demoulding ejector pin 33 can be driven by the demoulding drive seat 31 to eject the finished product from the forming mechanism 2. Since the demoulding ejector pin 33 and the demoulding drive pin 32 can be driven to slide simultaneously by the demoulding drive seat 31, the demoulding ejector pin 33 can cooperate with the oblique sliding forming die 25 to press and demould the finished plastic product, thereby achieving a better demoulding effect.

[0040] like Figure 5 、 Figure 6 and Figure 13 As shown, the first and second lateral molding dies 23 and 24 are each formed with guide holes 232. The first and second lateral molding dies 23 and 24 also include a sliding mechanism 4 slidably disposed on the base 1. The sliding direction of the sliding mechanism 4 is parallel to the sliding direction of the front molding die 21. The sliding mechanism 4 is mounted with a plurality of driving guides 5. The angle formed between the length of the driving guides 5 and the sliding direction of the sliding mechanism 4 is acute. Each driving guide 5 corresponds to a guide hole 232. One end of the driving guide 5 slidably extends into the guide hole 232, so that the sliding mechanism 4 drives the first and second lateral molding dies 23 and 24 to slide. The front molding die 21 is mounted and fixed to the sliding mechanism 4. This structure facilitates the driving of the first and second lateral molding dies 23 and 24, making the structure of the injection mold more compact.

[0041] like Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, the sliding mechanism 4 includes a first sliding seat 41 and a second sliding seat 42. The first sliding seat 41 and the second sliding seat 42 can be slidably arranged on the base 1. The sliding directions of the first sliding seat 41 and the second sliding seat 42 are parallel to the sliding direction of the front molding die 21. The first sliding seat 41 is located between the second sliding seat 42 and the base 1. A feeding channel communicating with the two sides thereof is formed on the first sliding seat 41, and a discharging channel 414 communicating with the two sides thereof is formed on the second sliding seat 42. The first sliding seat 41 and the second sliding seat 42 can be moved by sliding. The dynamic combination is connected together and encloses a guide channel 415, which is connected to the feed channel and the discharge channel 414. The driving guide 5 and the front molding die 21 are both arranged on the first sliding seat 41. The front molding die 21 is formed with an injection channel 215, which connects the opposite sides of the front molding die 21. The length direction of the injection channel 215 is parallel to the sliding direction of the front molding die 21. The injection channel 215 is set to narrower along its length as it approaches the molding cavity. When the mold is closed, one end of the injection channel 215 is connected to the molding cavity. In this embodiment, six molding mechanisms 2 are provided. The diversion structure formed by the guide channel 415 allows the filler injected from the feed channel to be evenly injected into the molding cavities of the six molding mechanisms 2. This structure makes it more convenient to inject material into the molding cavity.

[0042] like Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the first sliding seat 41 has a mounting groove 411 formed on the side facing away from the base 1. A clipping groove 412 is formed on the top of the mounting groove 411. A mounting channel 413 is formed on the bottom of the clipping groove 412. The mounting channel 413 communicates with the side of the first sliding seat 41 facing the base 1. The driving guide 5 has a clipping head 51 and a driving rod 52 formed along its axis. The driving rod 52 passes through the mounting groove 411, the clipping groove 412, and the mounting channel 413 in sequence and is inserted into the guide hole 232. The clipping head 51 is clipped into the clipping groove 412. The driving guide 5 also includes a fixing block 6 that is detachably fixed in the mounting groove 411. This structure facilitates the installation and removal of the driving guide 5, thereby facilitating the replacement of the first lateral forming die, the second lateral forming die, and other lateral forming dies to accommodate the production of plastic finished products of different specifications.

[0043] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7As shown, the sliding mechanism 4 also includes a third sliding seat 43, which is slidably arranged on the base 1, and the sliding direction of the third sliding seat 43 is parallel to the sliding direction of the second sliding seat 42. The third sliding seat 43 is on the side of the second sliding seat 42 facing away from the first sliding seat 41, and a feed port 431 is formed on the third sliding seat 43. The third sliding seat 43 and the second sliding seat 42 slide close to each other to enable the feed port 431 to be connected to the feed channel; a pulling piece 7 is provided on the third sliding seat 43, and a hook-pull protrusion 71 is formed on one end of the pulling piece 7, and the hook-pull protrusion 71 can be driven by the third sliding seat 43 to extend into the guide channel 415. After injection molding, the condensation in the guide channel 415 forms a sprue structure of the plastic product. At this time, the hook-pull protrusion 71 is connected to the sprue structure. The first sliding seat 41 and the second sliding seat 42 slide away from each other to form a gap for the sprue structure to discharge materials, and the sprue structure is fitted with the second sliding seat 42. The third sliding seat 43 slides away from the second sliding seat 42, so that the hook-pull protrusion 71 is embedded in the side of the second sliding seat 42, so that the hook-pull protrusion 71 is separated from the sprue structure, and then the sprue structure discharges materials under the action of its own weight due to lack of support, making the discharge of the sprue structure more convenient.

[0044] like Figure 1 and Figure 5 As shown, the rear molding die 22 is formed with a rear cooling channel 226, and the base 1 is formed with a first cooling channel 11. The first cooling channel 11 and the rear cooling channel 226 are connected to form a first cooling circuit. The front molding die 21 is formed with a front cooling channel 216, and the first sliding seat 41 is formed with a second cooling channel 416. The second cooling channel 416 and the front cooling channel 216 are connected to form a second cooling circuit. After the injection molding operation is completed, cooling water is introduced into the first and second cooling circuits to accelerate the cooling and molding of the filler in the molding cavity, thereby improving production efficiency.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications, combinations, and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be within the scope of the claims of the present invention.

Claims

1. An injection mold for forming a side concave structure, characterized in that: The invention comprises a base and a forming mechanism; the forming mechanism comprises a front forming mold, a rear forming mold, a first lateral forming mold and an oblique sliding forming mold; the front forming mold and the rear forming mold are arranged front and back, and the rear forming mold is fixed on the base; the front forming mold is slidably arranged on the base, and the sliding direction of the front forming mold is parallel to the central axis of the rear forming mold; the first lateral forming mold is slidably arranged on the base and is located beside the rear forming mold, and the sliding direction of the first lateral forming mold is perpendicular to the sliding direction of the front forming mold, and a first forming structure is formed on the first lateral forming mold; the oblique sliding forming mold is slidably arranged on the base On the rear molding die, the included angle between the sliding direction of the oblique sliding molding die and the sliding direction of the front molding die is an acute angle, and a second molding structure is formed on the oblique sliding molding die, which can eject the finished product from the molding mechanism by sliding; the front molding die, the first lateral molding die, and the oblique sliding molding die perform a mold closing action by sliding; when closing the mold: the front molding die, the rear molding die, the first lateral molding die, and the oblique sliding molding die are enclosed to form a molding cavity, and the molding cavity includes a main chamber and a first side chamber that are interconnected, and the first molding structure and the second molding structure are enclosed to form the first side chamber.

2. The injection mold for forming a side concave structure according to claim 1, characterized in that: The molding mechanism also includes a second lateral molding mold, which is slidably arranged on the base, and the second lateral molding mold and the first lateral molding mold are respectively located on opposite sides of the rear molding mold, and the sliding direction of the second lateral molding mold is parallel to the sliding direction of the first lateral molding mold. A third molding structure is formed on the second lateral molding mold; a fourth molding structure is formed on the rear molding mold, and a fifth molding structure is formed on the front molding mold. The second lateral molding mold performs a mold closing action by sliding; when closing the mold: the third molding structure, the fourth molding structure, and the fifth molding structure enclose a second side chamber, the second side chamber is connected to the main chamber, and the second side chamber and the first side chamber are both on the same side of the main chamber.

3. The injection mold for forming a side concave structure according to claim 2, characterized in that: The front forming mold is formed with a first front positioning slide, a second front positioning slide and a front forming structure; one end of the first front positioning slide is connected to a side elevation of the front forming mold, and the other end of the first front positioning slide is connected to the front forming structure; one end of the second front positioning slide is connected to the other side elevation of the front forming mold, and the other end of the second front positioning slide is connected to the front forming structure and forms the fifth forming structure; a first rear positioning slide, a second rear positioning slide and a rear forming structure are formed on the rear forming mold, one end of the first rear positioning slide is connected to a side elevation of the rear forming mold, and the other end of the first rear positioning slide is connected to the rear forming structure, and an inclined slide is formed on the groove bottom of the first rear positioning slide, and the angle formed between the central axis of the inclined slide and the central axis of the rear forming mold is an acute angle; one end of the second rear positioning slide is connected to the other side elevation of the rear forming mold The cam is connected to the rear molding structure and the other end of the second rear positioning slide is connected to the rear molding structure to form the fourth molding structure; the oblique sliding molding mold can be slidably arranged in the oblique slide, and the second molding structure of the oblique sliding molding mold protrudes from the bottom of the rear positioning slide; when the mold is closed, the first front positioning slide and the first rear positioning slide are combined to form the first positioning slide, and the second front positioning slide and the second rear positioning slide are combined to form the second positioning slide, the front molding structure and the rear molding structure are combined to form the main cavity, the first molding structure of the first lateral molding mold slides along the first positioning slide toward the direction of the main cavity and is combined with the second molding structure of the oblique sliding molding mold to form the first side cavity, the third molding structure of the second lateral molding mold slides along the second positioning slide toward the direction of the main cavity and is combined with the fourth molding structure and the fifth molding structure to form the second side cavity.

4. The injection mold for forming a side concave structure according to claim 1, characterized in that: It also includes a demoulding mechanism, which includes a demoulding drive seat and a demoulding drive rod; the demoulding drive seat is slidably arranged on the base, and the sliding direction of the demoulding drive seat is parallel to the sliding direction of the front molding die; one end of the demoulding drive rod is fixedly connected to the demoulding drive seat, and the other end of the demoulding drive rod is rotatably connected to the oblique sliding molding die, so that the oblique sliding molding die is driven by the demoulding drive seat to slide.

5. The injection mold for forming a side concave structure according to claim 4, characterized in that: The demoulding mechanism also includes a demoulding ejector pin, one end of which is fixedly connected to the demoulding drive seat, and the other end of which is arranged in the forming cavity, so that the demoulding ejector pin can be driven by the demoulding drive seat to eject the finished product from the molding mechanism.

6. The injection mold for forming a side concave structure according to claim 1, characterized in that: A guide hole is formed on the first lateral forming mold; it also includes a sliding mechanism, which is slidably set on the base, and the sliding direction of the sliding mechanism is parallel to the sliding direction of the front forming mold. A driving guide is installed on the sliding mechanism, and the angle formed between the length direction of the driving guide and the sliding direction of the sliding mechanism is an acute angle. One end of the driving guide can be slidably extended into the guide hole, so that the sliding mechanism can drive the first lateral forming mold to slide by sliding; the front forming mold is installed and fixed on the sliding mechanism.

7. The injection mold for forming a side concave structure according to claim 6, characterized in that: The sliding mechanism includes a first sliding seat and a second sliding seat, wherein the first sliding seat and the second sliding seat are both slidably arranged on the base, and the sliding directions of the first sliding seat and the second sliding seat are parallel to the sliding direction of the front forming mold. The first sliding seat is located between the second sliding seat and the base; a feed channel is formed on the first sliding seat and connected to its two side surfaces, and a discharge channel is formed on the second sliding seat and connected to its two side surfaces. The first sliding seat and the second sliding seat can be connected together by a sliding combination and enclosed to form a guide channel, and the guide channel is connected to the feed channel and the discharge channel; the driving guide and the front forming mold are both arranged on the first sliding seat, and an injection channel is formed on the front forming mold, and the injection channel connects the opposite sides of the front forming mold, and the length direction of the injection channel is parallel to the sliding direction of the front forming mold. The injection channel is narrowed as it approaches the forming cavity along its length direction; when the mold is closed: one end of the injection channel is connected to the forming cavity.

8. The injection mold for forming a side concave structure according to claim 7, characterized in that: A mounting groove is formed on the side of the first sliding seat facing away from the base, a clamping groove is formed on the groove surface of the mounting groove, a mounting channel is formed on the groove bottom of the clamping groove, and the mounting channel is connected to the side of the first sliding seat facing the base; the driving guide is formed with a clamping head and a driving rod in sequence along its axis, the driving rod passes through the mounting groove, the clamping groove, and the mounting channel in sequence and is inserted into the guide hole, and the clamping head is clamped in the clamping groove; it also includes a fixing block, which is detachably embedded and fixed in the mounting groove.

9. The injection mold for forming a side concave structure according to claim 7, characterized in that: The sliding mechanism also includes a third sliding seat, which is slidably arranged on the base. The sliding direction of the third sliding seat is parallel to the sliding direction of the second sliding seat. The third sliding seat is located on the side of the second sliding seat facing away from the first sliding seat. A pulling piece is provided on the third sliding seat, and a hook-pull protrusion is formed on one end of the pulling piece. The hook-pull protrusion can be driven by the third sliding seat and extended into the guide channel.

10. The injection mold for forming a side concave structure according to claim 7, characterized in that: A rear cooling channel is formed on the rear forming mold, a first cooling channel is formed on the base, and the first cooling channel is connected with the rear cooling channel to form a first cooling circuit; a front cooling channel is formed on the front forming mold, a second cooling channel is formed on the first sliding seat, and the second cooling channel is connected with the front cooling channel to form a second cooling circuit.

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