Mold ejection structure

Abstract

The utility model discloses a mold ejection structure. A lower mold is connected to the top of a base, an upper mold is connected to the top of the lower mold, an ejection rod is arranged at the bottom of the base in a sliding mode, a fixing plate is connected to the interior of the base, and an ejector pin is fixed between the fixing plate and the upper mold. According to the mold ejection structure, when the base moves downwards, the lower mold can be driven to move downwards, air in the air bag can be exhausted, and chippings in the lower mold groove can be cleaned out through the through groove when the air is exhausted, so that the product quality and the use efficiency of the mold are improved; when the collecting box is positioned, an internal notch can be attached to the side face of a penetrating groove, chippings cleaned by the cleaning mechanism can fall into the collecting box through the penetrating groove to be collected, the cleaning effect on the lower die can be further improved, finally, the product ejection position can be improved through threaded sliding of a threaded ring and a threaded rod and extension of the length of an ejection rod, and the product quality is improved. And the product demolding effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold ejection structure. Background Art

[0002] A mold is a tool or device used to transform raw materials into molded products in a specific shape and size. It consists of an upper mold and a lower mold. By applying pressure and controlling process conditions, the raw materials flow, cool, and solidify in the mold cavity to eventually form a molded product. The mold will use an ejection structure to separate the internal product to obtain the molded product.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN218429763U discloses a mold ejection structure, which belongs to the mold field. Its technical points include an upper mold, a lower mold, a bottom plate, and a fixed block. The upper mold cover is arranged on the upper surface of the lower mold, the bottom plate is arranged below the lower mold, and the bottom plate is fixedly connected to the lower mold through two symmetrically distributed fixed blocks. A mold core is installed in the middle of the upper surface of the lower mold, and a lower mold cavity is arranged on the periphery of the mold core. An upper mold cavity is arranged in the middle of the lower surface of the upper mold. A flow channel connected to the upper mold cavity is arranged at the top of the upper mold. An ejector rod is slidably sleeved in the middle of the bottom end of the bottom plate, one end of the ejector rod extends between the two fixed blocks and is installed with a base plate, a pad is installed in the middle of the upper surface of the base plate, and ejector plates are hingedly arranged on both sides of the upper surface of the base plate. The utility model can realize the secondary ejection of injection molded products, avoids the situation that the key is easily damaged due to the traditional single ejection, is conducive to improving the product qualification rate, and has a broad market prospect.

[0004] Most of the molds currently used in the market still have certain shortcomings. As shown in the above document, the device can improve the product qualification rate through secondary ejection. However, the mold will be used many times and there will be residues inside. If it is not cleaned in time, it will affect the quality of the product. Secondly, the position of the ejector rod is fixed, and sometimes there may be a short distance, which affects the use of the device. It is necessary to improve the existing structure. Utility Model Content

[0005] The utility model aims to provide a mold ejection structure to solve the problems in the above background technology that the mold ejection structure is inconvenient to clean and the ejection rod of the mold may not be long enough.

[0006] To achieve the above object, the utility model provides the following technical solutions: a mold ejection structure, wherein the top of the base is connected to a lower mold, the top of the lower mold is connected to an upper mold, an ejection rod is slidably arranged at the bottom of the base, a fixed plate is connected inside the base, and an ejector pin is fixed between the fixed plate and the upper mold;

[0007] A placement groove is provided on the right side of the lower mold, a diverter plate is installed inside the placement groove, and multiple groups of nozzles are connected to the side of the diverter plate. A cleaning mechanism is provided inside the lower mold, and the inside of the mold can be cleaned by the cleaning mechanism;

[0008] A slide groove is provided on the top of the ejector rod, and an adjustment mechanism is provided inside the slide groove, through which the length of the ejector rod can be extended.

[0009] Furthermore, the cleaning mechanism includes an airbag, and the airbag is connected to the top of the fixed plate, a one-way valve is connected to the side of the airbag, an air pipe is connected between the airbag and the diverter plate, a through groove is opened on the left side of the lower mold, and a collection mechanism is arranged on the left side of the lower mold.

[0010] Furthermore, the collecting mechanism includes a collecting box, and the collecting box is connected to the left side of the lower mold, a connecting block is fixed to the right side of the collecting box, a spring is connected inside the connecting block, and a positioning block is connected to the top of the spring.

[0011] Furthermore, a slot is provided on the left side of the lower mold, and a positioning slot is provided on the top of the slot.

[0012] Furthermore, the adjustment mechanism comprises a rotation groove, and the rotation groove is arranged at the top of the ejection rod, and a rotation block is rotated through the rotation groove.

[0013] Furthermore, a threaded ring is fixed on the top of the rotating block, a threaded rod is fixed on the bottom of the fixing plate, the threaded rod slides inside the slide groove, and the threaded ring is threadedly sleeved on the surface of the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The mold ejection structure can drive the lower mold to move downward when the base moves downward, so that the gas in the airbag can be discharged. When the gas is discharged, the debris in the lower mold groove can be cleaned out through the through groove, thereby improving the product quality and the use efficiency of the mold. Secondly, under the action of the positioning block and the positioning groove, the internal notch of the collection box can be fitted on the side of the through groove when the collection box is positioned, and the debris cleaned by the cleaning mechanism can fall into the collection box through the through groove for collection, which can further improve the cleaning effect of the lower mold. Finally, the threaded ring and the threaded rod slide together to extend the length of the ejection rod, which can improve the ejection position of the product and the demoulding effect of the product.

[0016] 2. A nozzle is provided, through which the gas transported to the inside of the diverter plate can be diverted and compressed and discharged at the same time, thereby increasing the strength of the ejected airflow and improving the cleaning efficiency;

[0017] 3. A one-way valve is provided, which can improve the efficiency of air intake of the airbag during compression and reset, thereby improving the effect of mold cleaning in disguise;

[0018] 4. It is equipped with positioning blocks and positioning grooves, and the inclined surfaces on both sides of the positioning blocks and the positioning grooves can realize quick positioning, which improves the convenience of operation and the efficiency of use;

[0019] 5. A threaded ring is provided, and the threaded sliding between the threaded ring and the threaded rod realizes the stable rise of the fixed plate, thereby extending the length of the ejector rod and further increasing the position distance of the mold ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the base of the utility model;

[0022] Figure 3 This is an enlarged three-dimensional structural diagram of the airbag of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the collection box of the utility model;

[0024] Figure 5 For this utility model Figure 4 The enlarged three-dimensional structure diagram of the middle A part;

[0025] Figure 6 This is a schematic diagram of the split three-dimensional structure of the ejector rod of the utility model;

[0026] Figure 7 It is a schematic diagram of the sectional three-dimensional structure of the ejector rod of the utility model.

[0027] In the figure: 1, base; 2, lower mold; 3, upper mold; 4, ejector rod; 5, fixing plate; 6, ejector pin; 201, placement groove; 202, diverter plate; 203, nozzle; 204, air bag; 205, one-way valve; 206, air pipe; 207, through groove; 208, collecting box; 209, connecting block; 210, spring; 211, positioning block; 212, slot; 213, positioning groove; 401, slide groove; 402, rotating groove; 403, rotating block; 404, threaded ring; 405, threaded rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 3 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the mold of the ejection structure is inconvenient to clean and affects the product quality, a cleaning mechanism is disclosed:

[0031] A lower mold 2 is connected to the top of the base 1, an upper mold 3 is connected to the top of the lower mold 2, an ejector rod 4 is slidably arranged at the bottom of the base 1, a fixed plate 5 is connected inside the base 1, an ejector pin 6 is fixed between the fixed plate 5 and the upper mold 3, an accommodation groove 201 is opened on the right side of the lower mold 2, a diverter plate 202 is installed inside the accommodation groove 201, and multiple groups of nozzles 203 are connected to the side of the diverter plate 202, a cleaning mechanism is arranged inside the lower mold 2, and the inside of the mold can be cleaned by the cleaning mechanism, a slide groove 401 is opened on the top of the ejector rod 4, and an adjustment mechanism is arranged inside the slide groove 401, and the length of the ejector rod 4 can be extended by the adjustment mechanism.

[0032] The cleaning mechanism includes an airbag 204, and the airbag 204 is connected to the top of the fixed plate 5. A one-way valve 205 is connected to the side of the airbag 204. An air pipe 206 is connected between the airbag 204 and the diverter plate 202. A through groove 207 is opened on the left side of the lower mold 2. A collecting mechanism is arranged on the left side of the lower mold 2. When the ejection structure is in use, when the base 1 moves downward, the lower mold 2 can be driven to move downward. When the lower mold 2 moves to the top of the airbag 204, it can be squeezed. After being squeezed, the airbag 204 can be deformed to transport the internal gas through the air pipe 206 to the inside of the diverter plate 202 for separation. The diverter plate 202 discharges the diverted gas through multiple groups of nozzles 203. When the gas is discharged, the debris in the groove of the lower mold 2 can be cleaned out through the through groove 207, thereby improving product quality and mold use efficiency.

[0033] Embodiment 2:

[0034] like Figure 2 , Figure 4 and Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the ejection structure does not have the function of collecting debris, a collection mechanism is disclosed:

[0035] The collecting mechanism includes a collecting box 208, and the collecting box 208 is connected to the left side of the lower mold 2, a connecting block 209 is fixed on the right side of the collecting box 208, a spring 210 is connected inside the connecting block 209, a positioning block 211 is connected to the top of the spring 210, a slot 212 is provided on the left side of the lower mold 2, and a positioning groove 213 is provided on the top of the slot 212. Before the cleaning mechanism of the ejection structure is used, the moving collecting box 208 can drive the connecting block 209 to move, and the connecting block 209 can be inserted when it moves to the side of the slot 212. When the connecting block 209 is inserted, it can drive the positioning block 211 to tilt and face the inner wall of the slot 212 to squeeze, and when the positioning block 211 is squeezed, it can pass through the connecting block 209 slides, and the positioning block 211 can squeeze the spring 210. After the positioning block 211 is squeezed into the inside of the connecting block 209, the connecting block 209 can drive the positioning block 211 to move to the bottom of the positioning groove 213. At this time, the positioning block 211 can be reset by the spring 210. When the positioning block 211 is reset, it can be engaged with the positioning groove 213 for positioning. When the positioning block 211 is positioned, it can drive the collection box 208 to be positioned. When the collection box 208 is positioned, the internal notch can be attached to the side of the through groove 207. The debris cleaned by the cleaning mechanism can fall into the collection box 208 through the through groove 207 for collection, which can further improve the cleaning effect of the lower mold 2.

[0036] Embodiment three:

[0037] like Figure 2 , Figure 6 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the ejection rod 4 of the ejection structure may not be long enough, an adjustment mechanism is disclosed:

[0038] The adjusting mechanism comprises a rotating groove 402, and the rotating groove 402 is provided at the top of the ejector rod 4, a rotating block 403 is rotatably passed through the rotating groove 402, a threaded ring 404 is fixed at the top of the rotating block 403, a threaded rod 405 is fixed at the bottom of the fixed plate 5, and the threaded rod 405 slides inside the slide groove 401, and the threaded ring 404 is threadedly sleeved on the surface of the threaded rod 405. Before the ejection structure is used, the rotating block 403 can be driven to rotate by rotating the threaded ring 404, and the rotating block 403 can rotate through the rotating groove 402 when rotating, and the threaded ring 404 can drive the threaded rod 405 to slide by thread when rotating, and the threaded rod 405 can push the fixed plate 5 to move upward when the fixed plate 5 moves upward, and the length of the ejector rod 4 can be extended when the fixed plate 5 moves upward, and the position of the product ejection can be improved by adjusting the length of the ejector rod 4, and the demoulding effect of the product can be improved.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold ejection structure, comprising a base (1), the top of the base (1) is connected to a lower mold (2), the top of the lower mold (2) is connected to an upper mold (3), an ejection rod (4) is slidably disposed at the bottom of the base (1), a fixed plate (5) is connected inside the base (1), an ejector pin (6) is fixed between the fixed plate (5) and the upper mold (3), characterized in that ； A placement groove (201) is provided on the right side of the lower mold (2), a diverter plate (202) is installed inside the placement groove (201), and a plurality of groups of nozzles (203) are connected to the side of the diverter plate (202). A cleaning mechanism is provided inside the lower mold (2), and the inside of the mold can be cleaned by the cleaning mechanism; A slide groove (401) is provided at the top of the ejector rod (4), and an adjustment mechanism is provided inside the slide groove (401), through which the length of the ejector rod (4) can be extended.

2. A mold ejection structure according to claim 1, characterized in that: The cleaning mechanism comprises an air bag (204), and the air bag (204) is connected to the top of the fixed plate (5), a one-way valve (205) is connected to the side of the air bag (204), an air pipe (206) is connected between the air bag (204) and the diverter plate (202), a through groove (207) is opened on the left side of the lower mold (2), and a collecting mechanism is arranged on the left side of the lower mold (2).

3. A mold ejection structure according to claim 2, characterized in that: The collecting mechanism comprises a collecting box (208), and the collecting box (208) is connected to the left side of the lower mold (2), a connecting block (209) is fixed to the right side of the collecting box (208), a spring (210) is connected inside the connecting block (209), and a positioning block (211) is connected to the top of the spring (210).

4. A mold ejection structure according to claim 1, characterized in that: A slot (212) is provided on the left side of the lower mold (2), and a positioning slot (213) is provided on the top of the slot (212).

5. The mold ejection structure according to claim 1, characterized in that: The adjustment mechanism comprises a rotating groove (402), and the rotating groove (402) is opened at the top of the ejection rod (4), and a rotating block (403) is rotatably penetrated inside the rotating groove (402).

6. A mold ejection structure according to claim 5, characterized in that: A threaded ring (404) is fixed on the top of the rotating block (403), a threaded rod (405) is fixed on the bottom of the fixed plate (5), the threaded rod (405) slides inside the slide groove (401), and the threaded ring (404) is threadedly sleeved on the surface of the threaded rod (405).

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