Injection mold device of saw blade protective cover

Abstract

The injection mold device of the saw blade protective cover comprises the first sliding mechanism and the second sliding mechanism, the sliding direction of the first sliding mechanism is perpendicular to that of the second sliding mechanism, the space of the injection mold device is effectively utilized, the overall size of the injection mold device is reduced, and the space utilization rate is increased; the second sliding mechanism comprises a second sliding block and a deflector rod, the first end of the second sliding block is an inverted buckle insert, is connected with the mold cavity and is used for forming an inverted buckle structure on the saw blade protective cover, so that the second sliding block can directly participate in the product forming process after mold closing, additional assembly steps are not needed, and the manufacturing cost is reduced; the second end of the second sliding block is provided with a containing groove used for containing the shifting rod. The driving lever is connected with the first sliding mechanism; when the first sliding mechanism moves, the driving lever is driven to move so as to drive the back-off insert of the second sliding block to be separated from the back-off structure, a product with the back-off structure is effectively demolded, the overall structure is simple and reasonable in design, and the stability of sliding action is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric cutting machines, in particular to an injection mold device for a saw blade protective cover of a portable electric cutting machine. Background Art

[0002] The slider is a mold component that can slide perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction during the mold opening action. When the product structure design makes it impossible to demould the mold normally without the slider, the slider must be used to complete the demoulding process.

[0003] However, due to the diversity of product structures, the requirements for sliders when opening the mold are also different. Especially when the undercut directions of the product are different, a multi-slider structure is required for demoulding. In this case, the reasonable design of the slider is particularly important.

[0004] For products with an undercut structure, such as the saw blade guard of a portable electric cutting machine, the structure of the sliding mechanism in the traditional injection mold device is cumbersome and complicated, and the space occupied is increased, resulting in a larger overall size of the mold structure, making it difficult to balance space utilization and the stability of the sliding action while ensuring the demoulding effect.

[0005] Therefore, how to optimize the design of sliding mechanisms with different directions (such as 90 degrees apart) to achieve effective space saving and stable sliding action has become a technical problem that needs to be solved urgently.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] In order to solve the above technical problems, the purpose of the present invention is to provide an injection mold device for a saw blade guard. The preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides an injection mold device for a saw blade guard cover, comprising a first sliding mechanism and a second sliding mechanism, wherein the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular; the second sliding mechanism comprises a second slider and a lever, wherein the first end of the second slider is an undercut insert and is connected to the mold cavity to form an undercut structure on the saw blade guard; a receiving groove is provided on the second end of the second slider to accommodate the lever; the lever is connected to the first sliding mechanism; when the first sliding mechanism moves, the lever is driven to move, thereby driving the undercut insert of the second slider to disengage from the undercut structure.

[0010] Preferably, the first sliding mechanism includes a base, a driving unit, a first slider, a first slide seat and a second slide seat, the base is connected to the rear template; the driving unit is arranged on the bottom surface of the base and is connected to the first slider through a connecting rod; the first slider is engaged and connected to the first slide seat; the second slide seat is connected to the first slide seat and to the shift rod.

[0011] Preferably, an inclined positioning groove is provided on the bottom surface of the second slide seat, one end of the shift rod is connected to the positioning groove via a fastener, and the other end extends into a receiving groove provided on the second slide block.

[0012] Preferably, a locking seat is provided on the first sliding seat, a first inclined surface is provided on the locking seat, and a second inclined surface matched with the first inclined surface is provided on the front template; the first inclined surface abuts against the second inclined surface so that the second sliding block is always in a locked state.

[0013] Preferably, a guide groove is provided on the rear template for guiding the sliding of the second sliding block.

[0014] Preferably, the second slider is connected to the guide groove via a spring, so as to provide a restoring force for the second slider.

[0015] Preferably, a guide rail is arranged in the guide groove, and a guide block matched with the guide rail is arranged on the second sliding block.

[0016] Preferably, a limiting member is provided on the guide groove, and a limiting groove matched with the limiting member is formed at the second end of the second sliding block for limiting the sliding stroke of the second sliding block.

[0017] Preferably, it further comprises a first travel switch and a detection member, wherein the first travel switch is arranged on the base, the detection member is connected to the first slide, and the first travel switch is used to detect the position information of the detection member, and further detect the position information of the first slide.

[0018] Preferably, it further comprises a second travel switch, which is arranged on the base and is used to detect the position information of the first slide.

[0019] The preferred technical solution of the present invention can at least produce the following technical effects:

[0020] The present invention provides an injection mold device for a saw blade guard, comprising a first sliding mechanism and a second sliding mechanism, wherein the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular; the second sliding mechanism comprises a second slider and a lever, wherein the first end of the second slider is an undercut insert and is connected to the mold cavity, and is used to form an undercut structure on the saw blade guard; a receiving groove is provided on the second end of the second slider, and is used to accommodate the lever; the lever is connected to the first sliding mechanism; when the first sliding mechanism moves, the lever is driven to move, thereby driving the undercut insert of the second slider to disengage from the undercut structure. The first end of the second slider of the present invention is an undercut insert and is connected to the mold cavity, thereby driving the undercut structure on the saw blade guard, so that the second slider can directly participate in the product molding process after the mold is closed, without the need for additional assembly steps, thereby reducing the manufacturing cost. Moreover, there is a linkage between the first sliding mechanism and the second sliding mechanism, and when the first sliding mechanism moves, the lever moves accordingly, thereby driving the undercut insert of the second slider to disengage from the undercut structure, thereby realizing effective demoulding of the product with the undercut structure, and the overall structure is simple and the design is reasonable, thereby improving the stability of the sliding action. In addition, the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular, which effectively utilizes the space of the injection mold device, reduces the overall size of the injection mold device, and makes the injection mold device more compact, thereby improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an injection mold device of a saw blade guard provided by the present invention;

[0023] Figure 2 It is a structural schematic diagram of an injection mold device of a saw blade guard provided by the present invention, in which a front template is removed and a second sliding mechanism is exposed;

[0024] Figure 3 It is a structural schematic diagram of a first sliding mechanism and a second sliding mechanism of an injection mold device of a saw blade guard provided by the present invention;

[0025] Figure 4 It is a structural schematic diagram of a second sliding mechanism and a second sliding seat of an injection mold device of a saw blade guard provided by the present invention;

[0026] Figure 5The invention is a schematic structural diagram of a second sliding mechanism and a first mold cavity of an injection mold device for a saw blade guard provided by the present invention.

[0027] In the figure:

[0028] 1. Base; 101. Preset track; 2. Cylinder; 3. First slide block; 4. First slide seat; 5. Second slide seat; 51. Positioning groove; 6. Locking seat; 61. First inclined plane; 7. Connector; 8. Second slide block; 81. Undercut insert; 82. Accommodating groove; 83. Limiting groove; 84. Guide block; 9. Push rod; 10. Limiting member; 11. First travel switch; 12. Detection member; 121. Horizontal section; 122. Vertical section; 13. Second travel switch; 14. Front template; 15. Rear template; 151. Guide groove; 152. Guide rail; 16. Mold cavity. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] like Figure 1-Figure 5 As shown, the present invention provides an injection mold device for a saw blade guard, comprising a first sliding mechanism and a second sliding mechanism, wherein the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular; the second sliding mechanism comprises a second slider 8 and a lever 9, wherein the first end of the second slider 8 is an undercut insert 81, and is connected to the mold cavity 16, for forming an undercut structure on the saw blade guard; a receiving groove 82 is provided on the second end of the second slider 8, for accommodating the lever 9; the lever 9 is connected to the first sliding mechanism; when the first sliding mechanism moves, the lever 9 is driven to move, thereby driving the undercut insert 81 of the second slider 8 to disengage from the undercut structure.

[0031] The first end of the second slider 8 is an undercut insert 81, which is connected to the mold cavity 16 and is used to form an undercut structure on the saw blade guard for assembling a spring, so that the second slider 8 can directly participate in the product molding process after the mold is closed, without the need for additional assembly steps, thereby reducing manufacturing costs. In addition, there is a linkage between the first sliding mechanism and the second sliding mechanism. When the first sliding mechanism moves, the lever 9 moves accordingly, thereby driving the undercut insert 81 of the second slider 8 to disengage from the undercut structure, thereby achieving effective demolding of the product with the undercut structure. The overall structure is simple and the design is reasonable, thereby improving the stability of the sliding action. In addition, the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular, which effectively utilizes the space of the injection mold device, reduces the overall size of the injection mold device, and also makes the injection mold device more compact, thereby improving space utilization.

[0032] like Figure 1 , Figure 2 As shown, due to the compact layout of the first sliding mechanism and the second sliding mechanism of the present invention, two groups of injection molding structures can be set on the injection mold device to improve production efficiency, so that the injection mold device can produce two saw blade guard products at the same time.

[0033] As an optional implementation, Figure 1 , Figure 2 , Figure 3 As shown, the first sliding mechanism includes a base 1, a driving unit, a first slider 3, a first slide seat 4 and a second slide seat 5. The base 1 is connected to the rear template 15; the driving unit is arranged on the bottom surface of the base 1 and is connected to the first slider 3 through a connecting rod; the first slider 3 is connected to the first slide seat 4 by an inlay connection; the second slide seat 5 is connected to the first slide seat 4 and to the shift rod 9.

[0034] Furthermore, the driving part includes a cylinder 2. The cylinder 2 is mounted on the bottom surface of the base 1, and its telescopic end is connected to the first slider 3 through a connecting member 7. The telescopic movement of the cylinder 2 is converted into the first slider 3 driving the first slider 4 and the second slider 5 to slide on the preset track 101 through the connecting rod. With this arrangement, the overall structure is simple, compact, and reasonably designed, which ensures that the overall transmission is efficient and reliable while avoiding the cylinder 2 from occupying the upper space, thereby improving space utilization.

[0035] As an optional implementation, Figure 3 , Figure 4 As shown, an inclined positioning groove 51 is provided on the bottom surface of the second slide seat 5 , one end of the lever 9 is connected to the positioning groove 51 via a fastener, and the other end extends to a receiving groove 82 provided on the second slide block 8 .

[0036] Furthermore, the direction of the receiving groove 82 is adapted to the inclination direction of the lever 9 .

[0037] The cylinder 2 drives the first slider 3 to move, driving the first slide 4 to slide along the preset track 101 on the base 1, and then driving the second slide 5 and the lever 9 to move synchronously. Since the lever 9 abuts against the accommodating groove 82, during the movement, an outward force is applied to the second slider 8, driving the second slider 8 to move in a direction away from the mold cavity 16, thereby driving the undercut insert 81 of the second slider 8 to disengage from the undercut structure.

[0038] As an optional implementation, Figure 1 , Figure 2 The first slide seat 4 is shown as being provided with a locking seat 6, the locking seat 6 is provided with a first inclined surface 61, and the front template 14 is provided with a second inclined surface matched with the first inclined surface 61; the first inclined surface 61 abuts against the second inclined surface so that the second slide block 8 is always in a locked state.

[0039] In the mold closing state, the first bevel 61 is tightly contacted with the second bevel to lock the positions of the first base 1 and the second base 1, thereby locking the position of the second slider 8, thereby improving the stability of the second slider 8 during operation and preventing it from accidentally moving.

[0040] As an optional implementation, Figure 2 , Figure 4 , Figure 5 As shown, a guide groove 151 is provided on the rear template 15 for guiding the sliding of the second sliding block 8 .

[0041] This arrangement enables the second slider 8 to move along a predetermined track of the guide groove 151 during the sliding process, thereby improving the accuracy and stability of the second slider 8 during the sliding process.

[0042] As an optional implementation, the second slider 8 is connected to the guide groove 151 via a spring, so as to provide a restoring force for the second slider 8 .

[0043] The function of the spring is to release elastic potential energy after the external force disappears, so as to drive the second slider 8 to return to the initial position.

[0044] As an optional implementation, Figure 2 , Figure 4 , Figure 5 As shown, a guide rail 152 is arranged in the guide groove 151 , and a guide block 84 matched with the guide rail 152 is arranged on the second sliding block 8 .

[0045] Furthermore, the guide block 84 is arranged at the bottom of the second sliding block 8 .

[0046] The sliding cooperation between the guide block 84 and the guide rail 152 further improves the accuracy and stability of the second sliding block 8 during the sliding process.

[0047] As an optional implementation, Figure 4 , Figure 5 As shown, a limiting member 10 is disposed on the guide groove 151 , and a limiting groove 83 matched with the limiting member 10 is formed at the second end of the second slider 8 for limiting the sliding stroke of the second slider 8 .

[0048] Furthermore, the limiting member 10 includes a limiting bolt. Through the cooperation of the limiting bolt and the spring, after the mold is opened, the second sliding block 8 will not exceed a predetermined range during the sliding process.

[0049] As an optional implementation, Figure 1 , Figure 2 , Figure 3 As shown, it also includes a first travel switch 11 and a detection member 12. The first travel switch 11 is arranged on the base 1, and the detection member 12 is connected to the first slide 4. The first travel switch 11 is used to detect the position information of the detection member 12, and then detect the position information of the first slide 4.

[0050] Furthermore, the detection rod is an L-shaped structure, wherein the horizontal section 121 thereof is connected to the first slide seat 4 , and the vertical section 122 thereof is arranged corresponding to the first travel switch 11 .

[0051] When the first travel switch 11 detects the vertical section 122 of the detection rod, it indicates that the first slide 4 has slid to the predetermined position and sends a mold closing signal to prevent mold collision caused by the first slide 4 not reaching the correct position during the mold closing process.

[0052] As an optional implementation, Figure 1 , Figure 2 , Figure 3 As shown, a second travel switch 13 is also included. The second travel switch 13 is arranged on the base 1 and is used to detect the position information of the first slide 4.

[0053] When the first slider 3 retreats to the set position, that is, the second travel switch 13 detects the first slide 4 and sends an ejection signal, the ejection action can be performed, thereby effectively avoiding the mold collision caused by the ejection operation before the first slider 3 slides to the predetermined position.

[0054] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0055] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "an example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An injection mold device for a saw blade guard, characterized in that: It includes a first sliding mechanism and a second sliding mechanism, and the sliding directions of the first sliding mechanism and the second sliding mechanism are perpendicular; the second sliding mechanism includes a second slider and a lever, and the first end of the second slider is an undercut insert and is connected to the mold cavity to form an undercut structure on the saw blade guard; the second end of the second slider is provided with a receiving groove for accommodating the lever; the lever is connected to the first sliding mechanism; when the first sliding mechanism moves, the lever is driven to move, thereby driving the undercut insert of the second slider to disengage from the undercut structure.

2. The injection mold device of the saw blade guard according to claim 1, characterized in that: The first sliding mechanism includes a base, a driving unit, a first slider, a first slide seat and a second slide seat, the base is connected to the rear template; the driving unit is arranged on the bottom surface of the base and is connected to the first slider through a connecting rod; the first slider is connected to the first slide seat in an inlay manner; the second slide seat is connected to the first slide seat and to the shift rod.

3. The injection mold device of the saw blade guard according to claim 1, characterized in that: The bottom surface of the second slide seat is provided with an inclined positioning groove, one end of the shifting rod is connected to the positioning groove via a fastener, and the other end extends into a receiving groove provided on the second slide block.

4. The injection mold device of the saw blade guard according to claim 1, characterized in that: The first slide seat is provided with a locking seat, the locking seat is provided with a first inclined surface, and the front template is provided with a second inclined surface adapted to the first inclined surface; the first inclined surface abuts against the second inclined surface so that the second slide block is always in a locked state.

5. The injection mold device of the saw blade guard according to claim 2, characterized in that: The rear template is provided with a guide groove for guiding the sliding of the second sliding block.

6. The injection mold device of the saw blade guard according to claim 5, characterized in that: The second sliding block is connected to the guide groove via a spring, which is used to provide a restoring force for the second sliding block.

7. The injection mold device for a saw blade guard according to claim 5, characterized in that: A guide rail is arranged in the guide groove, and a guide block matched with the guide rail is arranged on the second sliding block.

8. The injection mold device of the saw blade guard according to claim 5, characterized in that: A limiting piece is arranged on the guide groove, and a limiting groove matched with the limiting piece is formed at the second end of the second sliding block, so as to limit the sliding stroke of the second sliding block.

9. The injection mold device of a saw blade guard according to claim 2, characterized in that: It also includes a first travel switch and a detection member, wherein the first travel switch is arranged on the base, the detection member is connected to the first slide, and the first travel switch is used to detect the position information of the detection member, and further detect the position information of the first slide.

10. The injection mold device of a saw blade guard according to claim 2, characterized in that: It also includes a second travel switch, which is arranged on the base and is used to detect the position information of the first slide.

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