Mould with multiple forming mechanisms for special-shaped bottom plate

Abstract

The utility model discloses a mould with multiple forming mechanisms for a special-shaped bottom plate, which comprises a front mould assembly and a rear mould assembly, the front mould assembly comprises a front mould plate and a front mould core, and the rear mould assembly comprises a rear mould plate, a rear mould core, two first inclined ejection mechanisms and two second inclined ejection mechanisms. The first angle ejector mechanism and the second angle ejector mechanism respectively comprise a first angle ejector rod and a second angle ejector rod; a first forming block located on the rear side of the rear mold core, two second forming blocks located on the two sides of the rear mold core correspondingly and a third forming block located on the right side of the rear mold core are arranged on the rear mold plate, notches are formed in the positions, close to the second forming blocks, of the left side and the right side of the rear mold core, and the two first inclined ejector rods are located in the two notches correspondingly. The second angle ejector rod penetrates through the rear mold core; and a first driving mechanism, a second driving mechanism and a third driving mechanism which are matched with the first forming block, the second forming block and the third forming block are arranged on the front mold plate. The forming mechanism is more reasonable in layout, and it is guaranteed that products are formed smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold of a multi-molding mechanism of a special-shaped bottom plate. Background Art

[0002] Injection molds are widely used in the molding of various industrial injection molded parts. For some special-shaped base plates, due to their complex structure, there are always many difficulties in molding. Figure 1 That is, a special-shaped bottom plate 10 of the prior art, which has a plurality of perforations 11 on the rear side, circular holes 12 on the left and right walls of the special-shaped bottom plate 10, and convex rings 13 docking with the circular holes 12 on the inner sides of the left and right walls, undercuts 14 on the bottom wall between the two circular holes 12, and a position avoidance hole 15 on one side of the left wall. This complex structure requires the mold to be equipped with multiple molding mechanisms such as sliders, inclined tops, and sliding positions, but the layout of the existing molding mechanisms is not reasonable enough, and there is a risk of collision between the molding mechanisms during mold closing and mold opening, which affects the molding of the product. Utility Model Content

[0003] The utility model provides a mold with multiple molding mechanisms for a special-shaped bottom plate, and the layout of the molding mechanisms is more reasonable, thereby ensuring smooth molding of the product.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a mold of a multi-molding mechanism for a special-shaped bottom plate, comprising a front mold assembly and a rear mold assembly, wherein the front mold assembly comprises a front mold plate and a front mold core, and the rear mold assembly comprises a rear mold plate, a rear mold core, two first inclined ejector mechanisms and two second inclined ejector mechanisms, wherein the first inclined ejector mechanism and the second inclined ejector mechanism respectively comprise a first inclined ejector rod and a second inclined ejector rod; the rear mold plate is provided with a first molding block located at the rear side of the rear mold core, two second molding blocks located at the left and right sides of the rear mold core respectively, and a third molding block located at the right side of the rear mold core, a notch is provided at the left and right sides of the rear mold core near the second molding block, the two first inclined ejector rods are respectively located in the two notches, and the second inclined ejector rod passes through the rear mold core ; The front template is provided with a first driving mechanism, a second driving mechanism and a third driving mechanism respectively adapted to the first molding block, the second molding block and the third molding block; when the mold is closed, the first driving mechanism, the second driving mechanism and the third driving mechanism are respectively used to drive the first molding block, the second molding block and the third molding block to approach each other, and the front mold core, the rear mold core, the first molding block, the second molding block, the third molding block, the first inclined ejector rod and the second inclined ejector rod together form a molding cavity; when the mold is opened, the first driving mechanism, the second driving mechanism and the third driving mechanism are respectively used to drive the first molding block, the second molding block and the third molding block away from each other, the two first inclined ejector rods approach each other, and the two second inclined ejector rods approach each other.

[0006] In some embodiments, the rear mold assembly includes a pin plate, and the first inclined ejector mechanism also includes a first guide block arranged on the pin plate, the first guide block is provided with a first guide groove, the first guide grooves of the two first guide blocks are arranged facing each other, the missing groove is arranged at an angle, and the lower end of the first inclined ejector rod is arranged in the first guide groove and can slide in the first guide groove.

[0007] In some embodiments, the second inclined ejector mechanism also includes a second guide block arranged on the ejector plate, the second guide block is provided with a second guide groove, the second guide grooves of the two second guide blocks are arranged facing each other, the rear mold core is provided with an inclined through groove, the second inclined ejector rod is passed through the through groove, and the lower end of the second inclined ejector rod is arranged in the second guide groove and can slide in the second guide groove.

[0008] In some embodiments, the ejector plate is further provided with an ejector pin, and the ejector pin passes through the lower mold plate and the lower mold core.

[0009] In some embodiments, the first driving mechanism, the second driving mechanism and the third driving mechanism respectively include a first inclined guide block, a second inclined guide block and a third inclined guide block, and the first forming block, the second forming block and the third forming block are respectively provided with a first inclined guide hole, a second inclined guide hole and a third inclined guide hole adapted to the first inclined guide block, the second inclined guide block and the third inclined guide block, and the first inclined guide block, the second inclined guide block and the third inclined guide block are respectively slidably matched with the first inclined guide hole, the second inclined guide hole and the third inclined guide hole.

[0010] In some embodiments, the rear template is provided with a first guide rail located on the rear side of the rear mold core, two second guide rails located on the left and right sides of the rear mold core respectively, and a third guide rail located on the right side of the rear mold core, and the first molding block, the second molding block and the third molding block are slidably matched with the first guide rail, the second guide rail and the third guide rail respectively.

[0011] In some embodiments, the first molding block includes an insert and a plurality of protrusions disposed on a front side surface of the insert close to the rear mold core, and when the mold is closed, the protrusions abut against the rear mold core.

[0012] The utility model has at least the following beneficial effects: the utility model is provided with a first molding block located on the rear side of the rear mold core, two second molding blocks respectively located on the left and right sides of the rear mold core, and a third molding block located on the right side of the rear mold core on the rear template; notches are provided at the left and right sides of the rear mold core near the second molding block, the two first inclined ejector rods are respectively located in the two notches, and the second inclined ejector rod passes through the rear mold core; when the mold is closed, the first molding block, the second molding block and the third molding block are close to each other, and the front mold core, the rear mold core, the first molding block, the second molding block, the third molding block, the first inclined ejector rod and the second inclined ejector rod are combined to form a molding cavity; when the mold is opened, the first molding block, the second molding block and the third molding block are away from each other, the two first inclined ejector rods are close to each other, and the two second inclined ejector rods are close to each other; in this way, different molding mechanisms are in different positions and move in opposite directions, which can effectively avoid conflicts, and the layout of all molding mechanisms is more reasonable, ensuring the smooth molding of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a special-shaped bottom plate in the prior art;

[0014] Figure 2 It is a structural schematic diagram of a mold of a multi-molding mechanism for a special-shaped bottom plate according to an embodiment of the utility model;

[0015] Figure 3 A schematic cross-sectional view of a mold of a multi-molding mechanism for a special-shaped bottom plate according to an embodiment of the utility model;

[0016] Figure 4 It is a structural schematic diagram of a mold of a multi-molding mechanism for a special-shaped bottom plate of an embodiment of the utility model after removing part of the front mold component;

[0017] Figure 5 It is a structural schematic diagram of a mold of a multi-molding mechanism for a special-shaped bottom plate of an embodiment of the utility model after removing part of the front mold assembly, the rear mold plate and the rear mold core;

[0018] Figure 6This is a schematic structural diagram of the first driving mechanism and the first forming block of an embodiment of the utility model.

[0019] Wherein, the accompanying drawings are marked as follows:

[0020] Special-shaped bottom plate 10, perforation 11, round hole 12, convex ring 13, undercut 14, avoidance hole 15;

[0021] Front mold assembly 100, front mold plate 110, front mold core 120;

[0022] Rear mold assembly 200, rear mold plate 210, rear mold core 220, ejector plate 230, ejector 240;

[0023] A first forming block 310, an insert block 311, a protrusion 312, a second forming block 320, and a third forming block 330;

[0024] A first tilting mechanism 410, a first tilting rod 411, a first guide block 412, a second tilting mechanism 420, a second tilting rod 421, and a second guide block 422;

[0025] The first driving mechanism 510 , the first oblique guide block 511 , the second driving mechanism 520 , the second oblique guide block 521 , the third driving mechanism 530 , the third oblique guide block 531 . DETAILED DESCRIPTION

[0026] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0027] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated 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. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0029] The embodiment of the utility model provides a mold of a multi-molding mechanism of a special-shaped bottom plate, such as Figure 2-6As shown, it includes a front mold assembly 100 and a rear mold assembly 200. The front mold assembly 100 and the rear mold assembly 200 can be close to each other for mold closing, or can be separated from each other for mold opening. The front mold assembly 100 includes a front mold plate 110 and a front mold core 120, and the front mold core 120 is fixed on the front mold plate 110. The rear mold assembly 200 includes a rear mold plate 210, a rear mold core 220, two first inclined ejection mechanisms 410 and two second inclined ejection mechanisms 420, and the rear mold core 220 is fixed on the rear mold plate 210. The first inclined ejection mechanism 410 and the second inclined ejection mechanism 420 respectively include a first inclined ejection rod 411 and a second inclined ejection rod 421, and the first inclined ejection rod 411 and the second inclined ejection rod 421 are driven by the rear mold assembly 200.

[0030] The rear mold plate 210 is provided with a first molding block 310 located at the rear side of the rear mold core 220, two second molding blocks 320 respectively located at the left and right sides of the rear mold core 220, and a third molding block 330 located at the right side of the rear mold core 220. The left and right sides of the rear mold core 220 are respectively provided with notches near the two second molding blocks 320, and two first inclined ejector rods 411 are respectively located in the two notches, and the second inclined ejector rod 421 passes through the rear mold core 220. The first molding block 310 is used to form the perforations on the rear side of the special-shaped bottom plate, the second molding block 320 is used to form the circular holes on the left and right walls of the special-shaped bottom plate, the first inclined ejector rod 411 is used to form the convex rings on the left and right walls of the special-shaped bottom plate from the inside together with the second molding block 320, the second inclined ejector rod 421 is used to form the undercut 14 on the bottom wall of the special-shaped bottom plate, and the third molding block 330 is used to form the avoidance holes on the side walls of the special-shaped bottom plate.

[0031] The front template 110 is provided with a first driving mechanism 510, a second driving mechanism 520 and a third driving mechanism 530 which are respectively adapted to the first molding block 310, the second molding block 320 and the third molding block 330. The first driving mechanism 510, the second driving mechanism 520 and the third driving mechanism 530 can respectively drive the first molding block 310, the second molding block 320 and the third molding block 330 to move.

[0032] When the mold is closed, the first drive mechanism 510, the second drive mechanism 520 and the third drive mechanism 530 can respectively drive the first molding block 310, the second molding block 320 and the third molding block 330 to approach each other, and the front mold core 110, the rear mold core 210, the first molding block 310, the second molding block 320, the third molding block 330, the first inclined ejector rod 411 and the second inclined ejector rod 421 enclose a molding cavity, and the special-shaped bottom plate is formed in the molding cavity. When the mold is opened, the first drive mechanism 510, the second drive mechanism 520 and the third drive mechanism 530 can respectively drive the first molding block 310, the second molding block 320 and the third molding block 330 to move away from each other, the two first inclined ejector rods 411 approach each other to disengage the convex ring from the inside, and the two second inclined ejector rods 421 approach each other to disengage the undercut from the inside, thereby completing demolding. Therefore, in this embodiment, different molding mechanisms are placed at different positions and move in opposite directions, which can effectively avoid conflicts. The layout of all molding mechanisms is more reasonable, ensuring smooth molding of products.

[0033] In some embodiments, the rear mold assembly 200 includes an ejector plate 230, and the first inclined ejector mechanism 410 also includes a first guide block 412 disposed on the ejector plate 230, and a first guide groove is disposed on the first guide block 412, and the first guide grooves of the two first guide blocks 412 are disposed opposite to each other, and the notch on the rear mold core 220 is disposed obliquely, and the lower end of the first inclined ejector rod 411 passes through the notch and is disposed in the first guide groove, and the first inclined ejector rod 411 can slide in the first guide groove. When the mold is opened, the ejector plate 230 moves upward, driving the first inclined ejector rod 411 to move upward as well. Due to the presence of the notch, the first inclined ejector rod 411 moves obliquely, so that the two first inclined ejector rods 411 can approach each other along the first guide groove to disengage the convex ring from the inside.

[0034] Furthermore, the second inclined ejector mechanism 420 also includes a second guide block 422 disposed on the ejector plate 230, a second guide groove is disposed on the second guide block 422, the second guide grooves of the two second guide blocks 422 are disposed opposite to each other, the rear mold core 220 is provided with an inclined through groove, the second inclined ejector rod 421 is disposed in the through groove, the lower end of the second inclined ejector rod 421 passes through the through groove and is disposed in the second guide groove, and the second inclined ejector rod 421 can slide in the second guide groove. When the mold is opened, the ejector plate 230 moves upward, driving the second inclined ejector rod 421 to move upward as well. Due to the presence of the through groove, the second inclined ejector rod 421 moves obliquely, so that the two second inclined ejector rods 421 can approach each other along the second guide groove to disengage from the undercut from the inside.

[0035] In some embodiments, the ejector plate 230 is further provided with an ejector pin 240, which passes through the lower mold plate 210 and the lower mold core 220. When the mold is opened, the ejector plate 230 moves upward, driving the ejector pin 240 to eject upward, so as to push the formed special-shaped bottom plate away from the rear mold core 220, so as to facilitate the operator to take away the formed product.

[0036] In some embodiments, the first driving mechanism 510, the second driving mechanism 520 and the third driving mechanism 530 respectively include a first oblique guide block 511, a second oblique guide block 521 and a third oblique guide block 531, and the first molding block 310, the second molding block 320 and the third molding block 330 are respectively provided with a first oblique guide hole, a second oblique guide hole and a third oblique guide hole adapted to the first oblique guide block 511, the second oblique guide block 521 and the third oblique guide block 531, and the first oblique guide block 511, the second oblique guide block 521 and the third oblique guide block 531 are respectively slidably matched with the first oblique guide hole, the second oblique guide hole and the third oblique guide hole. During the mold closing process, the front mold assembly 100 drives the first oblique guide block 511, the second oblique guide block 521 and the third oblique guide block 531 to approach the rear mold assembly 200, and under the action of the oblique guide holes, the first molding block 310, the second molding block 320 and the third molding block 330 are pushed to move laterally on the rear mold plate 220, so as to approach each other. During the mold opening process, the front mold assembly 100 drives the first oblique guide block 511, the second oblique guide block 521 and the third oblique guide block 531 to move in opposite directions, so that the first molding block 310, the second molding block 320 and the third molding block 330 move away from each other.

[0037] Furthermore, the rear template 210 is provided with a first guide rail located on the rear side of the rear mold core 220, two second guide rails located on the left and right sides of the rear mold core 220 respectively, and a third guide rail located on the right side of the rear mold core 220. The first molding block 310, the second molding block 320 and the third molding block 330 are slidably matched with the first guide rail, the second guide rail and the third guide rail respectively, so that the first molding block 310, the second molding block 320 and the third molding block 330 can stably slide on the rear template 220 along a preset direction.

[0038] In some embodiments, the first molding block 310 includes an insert 311 and a plurality of protrusions 312 arranged on the front side of the insert 311 near the rear mold core 220. When the mold is closed, the protrusions 312 abut against the rear mold core 220 to form perforations on the rear side wall of the special-shaped base plate. The gap between the insert 311 and the rear mold core 220 is used to form the rear side wall of the special-shaped base plate.

[0039] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A mold of a multi-molding mechanism for a special-shaped bottom plate, characterized in that: The invention comprises a front mold assembly and a rear mold assembly, wherein the front mold assembly comprises a front mold plate and a front mold core, and the rear mold assembly comprises a rear mold plate, a rear mold core, two first inclined ejector mechanisms and two second inclined ejector mechanisms, wherein the first inclined ejector mechanism and the second inclined ejector mechanism respectively comprise a first inclined ejector rod and a second inclined ejector rod; the rear mold plate is provided with a first forming block located at the rear side of the rear mold core, two second forming blocks respectively located at the left and right sides of the rear mold core, and a third forming block located at the right side of the rear mold core, and notches are provided at the left and right sides of the rear mold core near the second forming blocks, the two first inclined ejector rods are respectively located in the two notches, and the second inclined ejector rod passes through the rear mold core; The front template is provided with a first driving mechanism, a second driving mechanism and a third driving mechanism which are respectively adapted to the first molding block, the second molding block and the third molding block; when the mold is closed, the first driving mechanism, the second driving mechanism and the third driving mechanism are respectively used to drive the first molding block, the second molding block and the third molding block to approach each other, and the front mold core, the rear mold core, the first molding block, the second molding block, the third molding block, the first inclined ejector rod and the second inclined ejector rod are combined to form a molding cavity; when the mold is opened, the first driving mechanism, the second driving mechanism and the third driving mechanism are respectively used to drive the first molding block, the second molding block and the third molding block to move away from each other, the two first inclined ejectors approach each other, and the two second inclined ejectors approach each other.

2. The mold of the multi-molding mechanism of the special-shaped bottom plate according to claim 1, characterized in that: The rear mold assembly includes a pin plate, and the first inclined ejector mechanism also includes a first guide block arranged on the pin plate, the first guide block is provided with a first guide groove, the first guide grooves of the two first guide blocks are arranged facing each other, the missing groove is arranged at an angle, and the lower end of the first inclined ejector rod is arranged in the first guide groove and can slide in the first guide groove.

3. The mold of the multi-molding mechanism of the special-shaped bottom plate according to claim 2, characterized in that: The second inclined ejector mechanism also includes a second guide block arranged on the ejector plate, the second guide block is provided with a second guide groove, the second guide grooves of the two second guide blocks are arranged facing each other, the rear mold core is provided with an inclined through groove, the second inclined ejector rod is passed through the through groove, and the lower end of the second inclined ejector rod is arranged in the second guide groove and can slide in the second guide groove.

4. The mold of the multi-molding mechanism of the special-shaped bottom plate according to claim 2, characterized in that: The ejector plate is also provided with an ejector pin, and the ejector pin passes through the lower mold plate and the lower mold core.

5. The mold of the multi-molding mechanism for the special-shaped bottom plate according to any one of claims 1 to 4, characterized in that: The first driving mechanism, the second driving mechanism and the third driving mechanism respectively include a first oblique guide block, a second oblique guide block and a third oblique guide block, and the first forming block, the second forming block and the third forming block are respectively provided with a first oblique guide hole, a second oblique guide hole and a third oblique guide hole adapted to the first oblique guide block, the second oblique guide block and the third oblique guide block, and the first oblique guide block, the second oblique guide block and the third oblique guide block are respectively slidably matched with the first oblique guide hole, the second oblique guide hole and the third oblique guide hole.

6. The mold of the multi-molding mechanism of the special-shaped bottom plate according to claim 5, characterized in that: The rear template is provided with a first guide rail located on the rear side of the rear mold core, two second guide rails located on the left and right sides of the rear mold core respectively, and a third guide rail located on the right side of the rear mold core, and the first forming block, the second forming block and the third forming block are slidably matched with the first guide rail, the second guide rail and the third guide rail respectively.

7. The mold of the multi-molding mechanism for the special-shaped bottom plate according to any one of claims 1 to 4, characterized in that: The first forming block includes an insert block and a plurality of protrusions arranged on the front side surface of the insert block close to the rear mold core. When the mold is closed, the protrusions abut against the rear mold core.

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