Synchronous pitched roof mechanism and injection mold

Abstract

The utility model belongs to the field of core-pulling mechanisms, and provides a synchronous pitched roof mechanism and an injection mold, comprising a bottom plate provided with a guide piece; the first pitched roof assembly and the second pitched roof assembly are symmetrically arranged on the bottom plate, a first pitched roof block and a second pitched roof block are movably arranged on the first pitched roof assembly, and the first pitched roof block and the second pitched roof block are used for separating the product out of the product cavity when approaching oppositely; and the traction piece is movably arranged on the guide piece in a sleeving manner. Compared with the prior art, the structure has the advantages that the first transverse shaft and the second transverse shaft are movably inserted into the second linear bearing, so that when the pitched roof on any side acts too fast, the second linear bearing can be matched with the first transverse shaft and the second transverse shaft to force the pitched roof on the other side to act synchronously, and the structure is relatively simple on the whole; and meanwhile, a guarantee is provided for the stability of the product in the demolding action, and the qualification rate of the product is effectively ensured not to be influenced.

Description

Technical Field

[0001] The utility model belongs to the field of core pulling mechanisms, and in particular relates to a synchronous inclined ejector mechanism and an injection mold. Background Art

[0002] With the rapid development of technology, people have higher and higher requirements for product quality, which makes the stability of the demoulding action after product molding particularly important.

[0003] After the product is formed, most of them use an inclined ejector block to eject the product from the product cavity. However, when facing some large and easily deformed products, the inclined ejector mechanism in the existing mold often cannot ensure that all positions of the product can be stably pressed. In the process of using two inclined ejectors to eject the product, the synchronous action of the two inclined ejectors cannot be guaranteed, which causes the product to be damaged due to uneven force during the ejection process. This seriously affects the stability of the inclined ejector mechanism during product ejection and reduces the product qualification rate. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a synchronous tilting ejector mechanism and an injection mold.

[0005] The utility model solves the technical problem by adopting a technical solution of providing a synchronous tilting mechanism, comprising: a bottom plate, provided with a guide member;

[0006] The first inclined ejector assembly and the second inclined ejector assembly are symmetrically arranged on the bottom plate, the first inclined ejector assembly is movably provided with a first inclined ejector block and a second inclined ejector block, and the first inclined ejector block and the second inclined ejector block are used to separate the product from the product cavity when the first inclined ejector block and the second inclined ejector block are close to each other;

[0007] A traction member, movably sleeved on the guide member, with two ends of the traction member extending into the first inclined top block and the second inclined top block respectively, and the first inclined top block and the second inclined top block can drive the traction member to move in the vertical direction when approaching each other, and make the traction member movably inserted into the first inclined top block and the second inclined top block;

[0008] When the first inclined lift block or the second inclined lift block on any one side performs an inclined lift action too fast, the traction member can force it to perform an inclined lift action synchronously with the second inclined lift block or the first inclined lift block on the other side.

[0009] In the above-mentioned synchronous tilting mechanism, the traction member includes:

[0010] A first linear bearing, movably sleeved on the guide member;

[0011] The slide is connected to the first linear bearing, and a first transverse axis and a second transverse axis are formed on the outer wall of the slide. The first transverse axis is movably inserted in the first inclined top block, and the second transverse axis is movably inserted in the second inclined top block.

[0012] In the above-mentioned synchronous tilting lift mechanism, a limit block is further arranged on the bottom plate, a limit groove is formed on the limit block, and the first tilting lift block and the second tilting lift block are movably pressed against the limit groove.

[0013] In the above-mentioned synchronous lift mechanism, the first lift assembly and the second lift assembly both further include:

[0014] An inclined top base plate is detachably connected to the first inclined top block and the second inclined top block, and the inner side of the top of the inclined top base plate is movably connected to the guide member;

[0015] A symmetrically inclined top cylinder is arranged on the bottom plate, and the output end of the inclined top cylinder is connected to the bottom of the inclined top base plate;

[0016] The second linear bearing is arranged on the first inclined lift block and the second inclined lift block, and the ends of the first transverse axis and the second transverse axis away from the slide seat are movably inserted in the second linear bearing.

[0017] In the above-mentioned synchronous tilting lift mechanism, the guide member includes a fixed block and a column, the fixed block is arranged on the base plate, and the tilting lift base plate is movably clamped on the fixed block, so that the first tilting lift block and the second tilting lift block are movably pressed against the two side walls of the fixed block; the column is connected to the fixed block in the vertical direction, and the first linear bearing is movably sleeved on the column and can reciprocate along the axial direction of the column.

[0018] In the above-mentioned synchronous tilting mechanism, a mounting bracket is detachably connected to the bottom of the base plate, an arc-shaped surface is formed on the mounting bracket, and the tilting cylinder is closely connected to the arc-shaped surface.

[0019] In the above-mentioned synchronous tilting mechanism, a guide groove is formed on the fixed block, and a guide block is formed on the tilting base plate, and the guide block is movably engaged in the guide groove.

[0020] In the above-mentioned synchronous lift mechanism, the first lift block and the second lift block are both formed with protruding blocks, and the lift base plate is formed with limiting grooves, and the protruding blocks are inserted into the limiting grooves so that the first lift block and the second lift block can move synchronously with the lift base plate.

[0021] The utility model solves the technical problem by adopting a technical solution that also provides an injection mold, comprising the above-mentioned synchronous tilting ejector mechanism.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] (1) The utility model provides a synchronous tilting mechanism and an injection mold. When the first tilting block and the second tilting block are brought closer to each other, the first linear bearing can reciprocate along the axis of the column, which has a certain guiding effect on the demoulding action. At the same time, the first transverse axis and the second transverse axis are movably inserted in the second linear bearing. When the tilting action on either side is too fast, the second linear bearing can cooperate with the first transverse axis and the second transverse axis to force the tilting action on the other side to move synchronously. The structure is relatively simple as a whole and easy to operate. At the same time, it also provides a guarantee for the stability of the product during the demoulding action, effectively ensuring that the qualified rate of the product is not affected.

[0024] (2) The protruding block on the lift block is inserted into the limiting groove on the lift base plate, which can not only increase the overall strength of the lift block, but also prevent relative displacement between the lift base plate and the lift block, thus ensuring the smoothness and stability of the lift action. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a cross-sectional view of the present application;

[0026] Figure 2 It is a schematic diagram of the installation structure between the traction member and the column;

[0027] Figure 3 It is an exploded view of the second lift block, the lift base plate and the fixed block.

[0028] In the figure, 1, bottom plate; 10, limit block; 100, limit groove; 11, mounting bracket; 110, arc surface;

[0029] 2. guide member; 20. fixing block; 200. guide groove; 21. column;

[0030] 30. First tilting lift assembly; 31. Second tilting lift assembly; 320. First tilting lift block; 321. Second tilting lift block; 322. Tilting lift base plate; 323. Tilting lift cylinder; 324. Second linear bearing; 325. Guide block; 326. Protruding block; 327. Limiting groove;

[0031] 4. traction member; 40. first linear bearing; 41. slide seat; 410. first transverse axis; 411. second transverse axis. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figure 1 As shown, in this solution, a synchronous tilting ejector mechanism used in an injection mold is mainly described in detail, but the synchronous tilting ejector mechanism is not limited to being used in injection molds, and can also be applied to other molds, such as die-casting molds.

[0034] like Figures 1 to 3 As shown, a synchronous tilting mechanism comprises: a base plate 1, which is provided with a guide member 2; a first tilting assembly 30 and a second tilting assembly 31, which are symmetrically arranged on the base plate 1, and a first tilting block 320 and a second tilting block 321 are movably arranged on the first tilting assembly 30, and when the first tilting block 320 and the second tilting block 321 approach each other, the product is separated from the product cavity; a traction member 4, which is movably sleeved on the guide member 2, and the two ends of the traction member 4 extend into the first tilting block 320 and the second tilting block 321 respectively, and the first tilting block 320 and the second tilting block 321 can drive the traction member 4 to move in the vertical direction when approaching each other, and make the traction member 4 movably inserted into the first tilting block 320 and the second tilting block 321; when the tilting action of the first tilting block 320 or the second tilting block 321 on any one side is too fast, the traction member 4 can force it to perform the tilting action synchronously with the second tilting block 321 or the first tilting block 320 on the other side.

[0035] The main purpose of this application is to realize the synchronous tilting action of two tilting blocks, specifically, Figure 1 As shown, the guide member 2 in the present scheme is arranged on the bottom plate 1, which plays a certain guiding and limiting effect on the tilting action, ensuring the smoothness and stability of the entire tilting process, and the traction member 4 is movably sleeved on the guide member 2, and the two ends of the traction member 4 extend into the first tilting block 320 and the second tilting block 321; when the product is formed in the product cavity, the first tilting assembly 30 and the second tilting assembly 31 can respectively drive the first tilting block 320 and the second tilting block 321 to perform the tilting action. During this process, the first tilting block 320 and the second tilting block 321 can drive the traction member 4 to slide on the guide member 2 when moving (that is, Figure 1 In the vertical direction), since the first inclined ejector block 320 and the second inclined ejector block 321 are inclined, as the two gradually approach each other and eject the product, the two ends of the traction member 4 will gradually extend into the first inclined ejector block 320 and the second inclined ejector block 321, respectively. In other words, the traction member 4 Figure 1While moving in the vertical direction, its two sides will also be movably inserted in the inclined ejector block as it moves. Therefore, when the inclined ejector on one side moves too fast, the traction member 4 can cooperate with the guide member 2 to force it to perform the inclined ejector action synchronously with the inclined ejector block on the other side, thereby ensuring that the product can be smoothly and stably separated from the product cavity. The overall structure is relatively simple and easy to operate. At the same time, it also provides a guarantee for the stability of the product during demoulding, effectively ensuring that the qualified rate of the product is not affected.

[0036] The traction member 4 includes: a first linear bearing 40, which is movably mounted on the guide member 2; a slide 41, which is connected to the first linear bearing 40, and a first transverse axis 410 and a second transverse axis 411 are formed on the outer wall of the slide 41. The first transverse axis 410 is movably inserted in the first inclined top block 320, and the second transverse axis 411 is movably inserted in the second inclined top block 321.

[0037] like Figure 1 and Figure 2 As shown, the slide 41 is sleeved on the first linear bearing 40, and the two are detachably connected by screws, and the first transverse axis 410 and the second transverse axis 411 are respectively arranged on both sides of the slide 41 facing the first inclined top block 320 and the second inclined top block 321, and the first transverse axis 410 and the second transverse axis 411 are respectively movably inserted in the first inclined top block 320 and the second inclined top block 321, so that the first inclined top block 320 and the second inclined top block 321 can be moved along the first inclined top block 320 and the second inclined top block 321. Figure 1 When the tilting action is performed and the two sides are approaching each other, the slide 41 and the first linear bearing 40 are driven along the horizontal axis. Figure 1 While the guide member 2 moves upward, the first transverse axis 410 and the second transverse axis 411 can be movably inserted in the first inclined ejector block 320 and the second inclined ejector block 321 respectively during movement, so as to force the side with a faster inclined ejector movement to perform the inclined ejector movement synchronously with the normally moving inclined ejector block, thereby ensuring that the product can stably leave the product cavity.

[0038] The first tilting lift assembly 30 and the second tilting lift assembly 31 also include: a tilting lift base plate 322, which is detachably connected to the first tilting lift block 320 and the second tilting lift block 321, and the inner side of the top of the tilting lift base plate 322 is movably clamped on the guide member 2; a symmetrically inclined tilting lift cylinder 323, which is arranged on the base plate 1, and the output end of the tilting lift cylinder 323 is connected to the bottom of the tilting lift base plate 322; a second linear bearing 324, which is arranged on the first tilting lift block 320 and the second tilting lift block 321, and the ends of the first transverse axis 410 and the second transverse axis 411 away from the slide seat 41 are movably inserted into the second linear bearing 324.

[0039] refer to Figure 1 and Figure 3By utilizing the movable clamping connection between the inclined top base plate 322 and the guide member 2, the first inclined top block 320 and the second inclined top block 321 are guided and limited during the inclined top process, thereby ensuring the smoothness and stability of the inclined top process. It is worth noting that the first linear bearing 40 in the present scheme is arranged on the first inclined lift block 320 and the second inclined lift block 321 in the horizontal direction, and the two are arranged coaxially, so that when the two symmetrically inclined inclined lift cylinders 323 push the first inclined lift block 320 and the second inclined lift block 321 to perform the inclined lift action, the first linear bearing 40 is driven to move along the guide member 2 through the first transverse axis 410 and the second transverse axis 411. As the first inclined lift block 320 and the second inclined lift block 321 gradually approach each other, the first transverse axis 410 and the second transverse axis 411 can slide in the second linear bearing 324, which effectively prevents the inclined lift block and the second linear bearing 324 from getting stuck, and can also utilize the cooperation between the second linear bearing 324 and the two coaxial transverse axes to ensure that the first inclined lift block 320 and the second inclined lift block 321 perform the inclined lift action synchronously.

[0040] Preferably, the role of the second linear bearing 324 in this solution can be similar to that of the guide sleeve, which can play a certain guiding effect on the movement of the first horizontal axis 410 and the second horizontal axis 411, while also avoiding the jamming phenomenon between the two and affecting the smoothness and stability of the tilting action.

[0041] The guide member 2 includes a fixed block 20 and a column 21. The fixed block 20 is arranged on the base plate 1. The inclined top base plate 322 is movably clamped on the fixed block 20, so that the first inclined top block 320 and the second inclined top block 321 are movably pressed against the two side walls of the fixed block 20; the column 21 is connected to the fixed block 20 in the vertical direction, and the first linear bearing 40 is movably sleeved on the column 21 and can reciprocate along the axial direction of the column 21.

[0042] like Figures 1 to 3 As shown, the fixed block 20 can also be installed in a disassembled manner using screws, which provides convenience for subsequent maintenance and replacement, and the column 21 is arranged on the fixed block 20 in the vertical direction, wherein the first linear bearing 40 is movably sleeved on the column 21, so that as the first inclined top block 320 and the second inclined top block 321 perform the inclined top action synchronously, the first linear bearing 40 can be driven to move along the axial direction of the column 21 through the first transverse axis 410 and the second transverse axis 411, so that the first transverse axis 410 and the second transverse axis 411 are respectively inserted into the inside of the two inclined top blocks when they approach each other, which not only plays a guiding effect, but also can use the transverse axis to apply radial force to the bearings, thereby forcing the first inclined top block 320 and the second inclined top block 321 to perform the inclined top action synchronously.

[0043] Preferably, in this solution, a mounting bracket 11 is detachably connected to the bottom of the bottom plate 1, such as Figure 1 As shown, an arc surface 110 is formed on the mounting bracket 11, and two inclined lift cylinders are closely connected to the arc surface 110 to form an inclined angle setting mode, and then under the drive of the inclined lift cylinders, the first inclined lift block 320 and the second inclined lift block 321 are moved to separate the product from the product cavity.

[0044] A guide groove 200 is formed on the fixed block 20 , and a guide block 325 is formed on the inclined top base plate 322 . The guide block 325 is movably engaged in the guide groove 200 .

[0045] like Figure 3 As shown, the guide block 325 is movably clamped in the guide groove 200 on the fixed block 20, so that when the inclined lift cylinder is driven, it can push the first inclined lift block 320 and the second inclined lift block 321 to reciprocate along the inclined direction of the guide groove 200, thereby improving the stability of the inclined lift block when separating the product from the product cavity, and also ensuring the smoothness and accuracy of the structure when resetting.

[0046] The first lift block 320 and the second lift block 321 are both formed with protruding blocks 326 , and the lift base plate 322 is formed with limiting grooves 327 , in which the protruding blocks 326 are inserted, so that the first lift block 320 and the second lift block 321 can move synchronously with the lift base plate 322 .

[0047] Further reference Figure 3 During the installation process, the protruding block 326 is inserted into the limiting groove 327, which has a positioning effect on the installation position of the inclined top base plate 322 and the first inclined top block 320 or the second inclined top block 321, ensuring that the two are accurately and stably attached to each other. After the two are connected together by screws, the overall strength of the inclined top block is improved, and the relative displacement between the inclined top base plate 322 and the inclined top block during the inclined top action is effectively avoided, thereby greatly improving the stability of the inclined top structure.

[0048] A limiting block 10 is further provided on the bottom plate 1 , and a limiting groove 100 is formed on the limiting block 10 . The first inclined top block 320 and the second inclined top block 321 are movably pressed against the limiting groove 100 .

[0049] Similarly, if Figure 1 As shown, after the first inclined ejector block 320 and the second inclined ejector block 321 separate the product from the product cavity, the inclined ejector cylinder can drive the first inclined ejector block 320 and the second inclined ejector block 321 to reset. At this time, the bottom of the inclined ejector block can be movably pressed against the limiting groove 100 on the limiting block 10 (that is, the locking inclined surface formed on the inner wall of the limiting groove 100, not shown in the figure), ensuring that the first inclined ejector block 320 and the second inclined ejector block 321 can accurately reset to the initial position (that is, the initial position) after the inclined ejection action is completed. Figure 1 status shown).

[0050] It should be noted that the linear bearing in this solution is a linear motion system used in conjunction with a cylindrical shaft for linear travel. Since the load-bearing ball is in point contact with the outer sleeve of the bearing, the steel ball rolls with minimal friction resistance, so the linear bearing has low friction and is relatively stable, does not change with the bearing speed, and can obtain a smooth linear motion with high sensitivity and high precision. The first linear bearing 40 and the second linear bearing 324 in this solution both use model LMK20 linear bearings.

[0051] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A synchronous tilting mechanism, characterized in that: include: A bottom plate, provided with a guide member; The first inclined ejector assembly and the second inclined ejector assembly are symmetrically arranged on the bottom plate, the first inclined ejector assembly is movably provided with a first inclined ejector block and a second inclined ejector block, and the first inclined ejector block and the second inclined ejector block are used to separate the product from the product cavity when the first inclined ejector block and the second inclined ejector block are close to each other; A traction member, movably sleeved on the guide member, with two ends of the traction member extending into the first inclined top block and the second inclined top block respectively, and the first inclined top block and the second inclined top block can drive the traction member to move in the vertical direction when approaching each other, and make the traction member movably inserted into the first inclined top block and the second inclined top block; When the first inclined lift block or the second inclined lift block on any one side performs an inclined lift action too fast, the traction member can force it to perform an inclined lift action synchronously with the second inclined lift block or the first inclined lift block on the other side.

2. A synchronous tilting mechanism according to claim 1, characterized in that: The traction member comprises: A first linear bearing, movably sleeved on the guide member; The slide is connected to the first linear bearing, and a first transverse axis and a second transverse axis are formed on the outer wall of the slide. The first transverse axis is movably inserted in the first inclined top block, and the second transverse axis is movably inserted in the second inclined top block.

3. A synchronous tilting mechanism according to claim 1, characterized in that: A limiting block is also arranged on the bottom plate, and a limiting groove is formed on the limiting block. The first inclined top block and the second inclined top block are movably pressed against the limiting groove.

4. A synchronous tilting mechanism according to claim 2, characterized in that: The first inclined top assembly and the second inclined top assembly both further include: An inclined top base plate is detachably connected to the first inclined top block and the second inclined top block, and the inner side of the top of the inclined top base plate is movably connected to the guide member; A symmetrically inclined top cylinder is arranged on the bottom plate, and the output end of the inclined top cylinder is connected to the bottom of the inclined top base plate; The second linear bearing is arranged on the first inclined lift block and the second inclined lift block, and the ends of the first transverse axis and the second transverse axis away from the slide seat are movably inserted in the second linear bearing.

5. A synchronous tilting mechanism according to claim 4, characterized in that: The guide member includes a fixed block and a column, the fixed block is arranged on the base plate, the inclined top base plate is movably clamped on the fixed block, so that the first inclined top block and the second inclined top block are movably pressed against the two side walls of the fixed block; the column is connected to the fixed block in the vertical direction, the first linear bearing is movably sleeved on the column, and can reciprocate along the axial direction of the column.

6. A synchronous tilting mechanism according to claim 4, characterized in that: A mounting bracket is detachably connected to the bottom of the bottom plate. An arc surface is formed on the mounting bracket, and the inclined top cylinder is closely connected to the arc surface.

7. A synchronous tilting mechanism according to claim 5, characterized in that: A guide groove is formed on the fixed block, and a guide block is formed on the inclined top base plate. The guide block is movably clamped in the guide groove.

8. A synchronous tilting mechanism according to claim 4, characterized in that: The first lift block and the second lift block are both formed with protruding blocks, and the lift base plate is formed with limiting grooves, and the protruding blocks are inserted into the limiting grooves so that the first lift block and the second lift block can move synchronously with the lift base plate.

9. An injection mold, characterized in that: A synchronous tilting mechanism comprising any one of claims 1-8.

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