One-driving-two inner and outer sliding block mechanism
By using one-to-two inner and outer slide mechanisms in the injection mold, the reverse movement of the slide is controlled by gears, the problems of easy damage and slow demolding speed during the product demolding process are solved, and the rapid and lossless demolding of the product is achieved, and the production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202421566231.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the product demoulding process, existing injection molds are prone to cause the product to bend, thorn, wear or break, and the demolding speed is slow, resulting in a longer injection molding cycle and reducing production efficiency.
The inner and outer slide mechanism is adopted, and the inner and outer slides are controlled to move in reverse synchronously through gears to achieve rapid mold release of the product without any damage.
The slider is driven to move in reverse through the gears, and the injection molded cavity is quickly decomposed, allowing the product to be demolded quickly and without loss, improving production efficiency and product quality.
Smart Images
Figure CN222875191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molds, in particular to a one-to-two inner and outer sliding block mechanism. Background Art
[0002] Injection molds usually consist of two parts: a movable mold and a fixed mold. The movable mold is installed on the moving end of the injection molding machine, and the fixed mold is installed on the fixed end of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a casting system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to take out the injection molded product.
[0003] As attached Figure 6 The product structure shown in the figure is that for such an injection molded product with a slot / undercut inside, the product is generally ejected by means of a slanted ejector core pulling method. However, due to its own structural composition and action principle, the slanted ejector mechanism has the following disadvantages in the ejection core pulling movement process:
[0004] 1. The product is prone to bending, deformation, puncture, wear and even breakage;
[0005] 2. The ejection speed of the inclined ejector must be slow to prevent the "stuck" phenomenon caused by too fast ejection. This slow ejection movement causes the injection molding cycle to become longer and reduces production efficiency. Utility Model Content
[0006] The utility model aims to provide a one-to-two inner and outer slider mechanism, which controls the inner and outer sliders to move synchronously in opposite directions through gears, so that the product can be demoulded quickly without damage, thereby improving production efficiency and product quality.
[0007] The purpose of the utility model is achieved by the following technical solutions:
[0008] A one-to-two inner and outer slider mechanism, comprising:
[0009] A fixed mold plate, wherein the fixed mold plate is provided with a mold core and a groove located on one side of the mold core;
[0010] A first sliding block and a second sliding block are disposed in the groove in an upper and lower manner opposite to each other and each of the sliding blocks has a rack disposed on its opposite surface;
[0011] A gear, rotatably disposed between the first slider and the second slider, the gear being respectively meshed with the two racks;
[0012] An inclined block, obliquely passing through the first sliding block and contacting and cooperating with the second sliding block;
[0013] In the mold closing state, the first and second sliders cooperate with the mold core to form an injection cavity, and the inclined block locks the positions of the first and second sliders; in the mold opening state, the inclined block moves away from the fixed mold plate and synchronously drives the first and second sliders to move in opposite directions to decompose the local injection cavity.
[0014] In the above scheme, in the mold closing state, the inclined block can lock the position of the first and second sliders to keep the injection cavity stable and improve the molding quality of the product; in the mold opening state, the inclined block can drive the first and second sliders to move in the opposite direction to decompose the local injection cavity, so that the product can be demolded quickly without causing damage to its structure.
[0015] In some embodiments, a through hole is provided on the first sliding block, and the through hole has an inclined surface matching the inclined block.
[0016] In the above scheme, if the angle between the inclined surface of the through hole and the horizontal plane is less than 100°, the movement of the first slider driven by the inclined block will be reduced, and the separation distance between the first slider and the second slider will be shortened when the mold is opened, which is not conducive to product demoulding; if the angle between the inclined surface of the through hole and the horizontal plane is less than 110°, the resistance to the up and down movement of the inclined block will increase, which is not conducive to the mold closing and opening actions of the mechanism. In the range of angles of 100°-110°, the movement of the inclined block and the first slider is relatively smooth.
[0017] In some embodiments, a locking groove is provided on the second slider, and in the mold closing state, the bottom of the inclined block is inserted into the locking groove to limit the reverse movement of the first and second sliders.
[0018] In the above solution, the contact and cooperation between the inclined block and the locking groove can limit the reverse movement of the first and second sliders, thereby ensuring the stability of the injection cavity and improving the molding quality of the product.
[0019] In some embodiments, one of the two racks is integrally formed with the first slider, and the other is integrally formed with the second slider.
[0020] In the above solution, by integrating the rack onto the first slider and the second slider respectively, the step of separately installing the rack is omitted and the component structure of the mechanism is simplified.
[0021] In some embodiments, a rotating shaft is further disposed in the groove, and the gear is sleeved on the rotating shaft.
[0022] In some embodiments, shaft grooves are provided at both ends of the rotating shaft, and bearings are provided in the shaft grooves for connection with the rotating shaft.
[0023] In the above scheme, by arranging the bearing in the shaft groove, the rotation friction of the shaft can be effectively reduced and the gear transmission effect can be improved.
[0024] In some embodiments, guide blocks are disposed on both sides of the first sliding block, and the guide blocks are connected to the fixed template to form a first guide groove structure extending along the moving direction.
[0025] In the above solution, the first guide groove structure can play a role of limiting guidance to ensure the stability of the movement of the first sliding block.
[0026] In some embodiments, a support block is disposed below the second sliding block, and the support block is connected to the fixed template to form a second guide groove structure extending along the moving direction.
[0027] In the above solution, the second guide groove structure can play a role of limiting guidance to ensure the stability of the movement of the second sliding block.
[0028] In some embodiments, at least two ejector pins are disposed inside the mold core.
[0029] In the above scheme, by providing a push rod, the product can be ejected after the mold is opened, making it easier to demould the product.
[0030] In some embodiments, a spring pin structure is provided at one end of the first sliding block away from the injection cavity, for tightening the first sliding block against the inclined block.
[0031] In the above scheme, the spring pin structure makes the inclined surface of the through hole close to the inclined surface of the fixed inclined block, thereby ensuring that each movement of the inclined block can stably trigger the movement of the first slider, improving the transmission performance of the mechanism during the mold opening and mold closing process. In addition, the elastic effect of the spring pin structure can play a certain buffering role during the mold opening process, and can provide a certain auxiliary power for the first and second sliders to reset during the mold closing process.
[0032] Compared with the prior art, the beneficial effects of the present invention include at least:
[0033] 1. The first and second sliders are driven by gears to move synchronously in opposite directions, which can decompose the local injection cavity, so that the product can be demoulded quickly without causing damage to its structure.
[0034] 2. During the mold closing and injection molding process, the inclined block can lock the position of the first and second sliders, keep the injection cavity stable, and improve the molding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a three-dimensional structural diagram of the one-to-two inner and outer sliding block mechanism of the utility model.
[0036] Figure 2 It is a planar structural diagram of the one-to-two inner and outer sliding block mechanism of the utility model.
[0037] Figure 3 yes Figure 2 Cross-sectional view along the AA direction.
[0038] Figure 4 It is a schematic diagram of the installation structure of the gear of the utility model.
[0039] Figure 5 yes Figure 2 Cross-sectional view along direction BB.
[0040] Figure 6 It is a structural schematic diagram of the product of the utility model.
[0041] In the figure: 1, fixed template; 101, groove; 102, shaft groove; 2, first slider; 201, through hole; 3, second slider; 301, lock groove; 4, gear; 5, inclined block; 6, mold core; 7, rack; 8, rotating shaft; 9, bearing; 10, guide block; 11, first guide groove structure; 12, support block; 13, second guide groove structure; 14, push rod; 15, spring pin structure. DETAILED DESCRIPTION
[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.
[0043] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.
[0044] The utility model discloses a one-to-two inner and outer slider mechanism, which is used for similar Figure 6 The product shown (with slots on the side wall) can be demoulded quickly and without damage. Figures 1 to 5 As shown, the mechanism includes a fixed mold plate 1, a first slider 2, a second slider 3, a gear 4 and a bevel block 5.
[0045] The fixed mold plate 1 is mounted on a fixed plate (not shown) of the injection molding equipment and its position remains stationary. Figures 1 to 3 As shown, a core 6 is provided on the fixed mold plate 1, and the core 6 is used to form the desired product. In addition, a groove 101 is provided on one side of the core 6 of the fixed mold plate 1, and the groove 101 is used to install components used in conjunction with the core 6, such as the first slider 2, the second slider 3, the gear 4, etc.
[0046] like Figure 3As shown, the first slider 2 and the second slider 3 are arranged in the groove 101 in a relative manner, and a rack 7 is arranged on the opposite surfaces of the two sliders, so as to realize the functions of mold closing injection and mold opening and material removal under the drive of the gear 4. In the present application, the first slider 2 and the second slider 3 are each provided with a groove or a protrusion structure at the left end, which is determined according to the product structure, so as to cooperate with the mold core 6 to form the injection cavity required for the product.
[0047] like Figure 3 and Figure 4 As shown, the gear 4 is rotatably disposed between the first slider 2 and the second slider 3, and the gear 4 is respectively engaged with the two racks 7, thereby driving the first slider 2 and the second slider 3 to move in opposite directions. In the present application, a rotating shaft 8 is disposed in the groove 101, and the length direction of the rotating shaft 8 is perpendicular to the length direction of the rack 7, and the gear 4 is sleeved on the rotating shaft 8, and the two can be connected by a key, thereby realizing the installation of the gear 4.
[0048] The inclined block 5 is mounted on a movable plate (not shown) of the injection molding device, and its position can be moved up and down. Figure 1 and Figure 3 As shown, the inclined block 5 obliquely penetrates the first slider 2 and contacts and cooperates with the second slider 3, thereby realizing the driving and locking functions of the slider. In the present application, a through hole 201 is provided on the first slider 2, and the hole has an inclined surface matching the inclined block 5. By utilizing the guiding effect of the inclined surface, the up and down movement of the inclined block 5 will drive the first slider 2 to move left and right, and drive the second slider 3 to move in the opposite direction synchronously through the gear 4. In addition, a locking groove 301 is provided on the second slider 3. In the mold closing state, the bottom of the inclined block 5 is inserted into the locking groove 301, and the positions of the first and second sliders 2 and 3 are locked to limit the reverse movement of the two, thereby ensuring the stability of the injection cavity and improving the molding quality of the product.
[0049] In the above-mentioned one-to-two inner and outer slider mechanism, in the mold closing state, the first and second sliders 2, 3 cooperate with the mold core 6 to form an injection cavity, and at the same time the inclined block 5 locks the positions of the first and second sliders 2, 3, so as to keep the injection cavity stable and improve the product molding quality; in the mold opening state, the inclined block 5 moves away from the fixed mold plate 1 and synchronously drives the first and second sliders 2, 3 to move in the opposite direction to decompose the local injection cavity, so that the product can be demolded quickly without causing damage to its structure.
[0050] See also Figure 3 As shown, in some embodiments, one of the two racks 7 is integrally formed with the first slider 2, and the other is integrally formed with the second slider 3, thereby eliminating the need for a separate installation step of the rack 7 and simplifying the composition structure of the mechanism.
[0051] See also Figure 4 and Figure 5As shown, in some embodiments, shaft grooves 102 are provided at both ends of the rotating shaft 8, and bearings 9 are provided in the shaft grooves 102 for connecting with the rotating shaft 8 to reduce the rotation friction of the rotating shaft 8 and improve the transmission effect of the gear 4.
[0052] See also Figure 5 As shown, in some embodiments, guide blocks 10 are provided on both sides of the first slider 2. The guide blocks 10 are strip-shaped and connected to the fixed template 1. For example, the guide blocks 10 can be fixed to the fixed template 1 by bolts, thereby forming a first guide groove structure 11 extending along the moving direction. This structure cooperates with the convex parts on both sides of the bottom of the first slider 2, and can play a role of limiting guide to ensure the stability of the movement of the first slider 2.
[0053] Similarly, a support block 12 is provided below the second slider 3, and the support block 12 is connected to the fixed template 1. For example, the support block 12 can be fixed to the fixed template 1 by bolts, thereby forming a second guide groove structure 13 extending along the moving direction. This structure cooperates with the convex parts on both sides of the bottom of the second slider 3, and also plays a role of limiting guide to ensure the stability of the movement of the second slider 3.
[0054] See also Figure 2 and Figure 4 As shown, in some embodiments, at least two ejector pins 14 are disposed inside the mold core 6 to eject the product after the mold is opened, thereby facilitating product demoulding.
[0055] See also Figure 3 As shown, in some embodiments, a spring pin structure 15 is provided at one end of the first slider 2 away from the injection cavity, which is used to press the first slider 2 against the inclined block 5, so that the inclined surface of the through hole 201 is close to the inclined surface of the fixed inclined block 5, thereby ensuring that each movement of the inclined block 5 can stably trigger the movement of the first slider 2, thereby improving the transmission performance of the mechanism during the mold opening and mold closing process. In addition, the elastic effect of the spring pin structure 15 can play a certain buffering role during the mold opening process, and can provide a certain auxiliary power for the first and second sliders 2 and 3 to reset during the mold closing process.
[0056] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.
Claims
1. A one-to-two inner and outer slider mechanism, characterized in that: include: A fixed mold plate (1), wherein the fixed mold plate (1) is provided with a mold core (6) and a groove (101) located on one side of the mold core (6); A first sliding block (2) and a second sliding block (3) are arranged in the groove (101) in an opposed manner up and down, and a rack (7) is provided on each of the opposing surfaces of the first sliding block (2) and the second sliding block (3); a gear (4) rotatably disposed between the first slider (2) and the second slider (3), the gear (4) being meshed with the two racks (7) respectively; An inclined block (5) obliquely penetrates the first sliding block (2) and contacts and cooperates with the second sliding block (3); In the mold closing state, the first and second sliders (2, 3) cooperate with the mold core (6) to form an injection mold cavity, and the inclined block (5) locks the positions of the first and second sliders (2, 3); in the mold opening state, the inclined block (5) moves away from the fixed mold plate (1) and synchronously drives the first and second sliders (2, 3) to move in the opposite direction, so as to partially decompose the injection mold cavity.
2. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: The first sliding block (2) is provided with a through hole (201), and the through hole (201) has an inclined surface matching the inclined block (5).
3. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: The second slider (3) is provided with a locking groove (301), and in the mold closing state, the bottom of the inclined block (5) is inserted into the locking groove (301) to limit the reverse movement of the first and second sliders (2, 3).
4. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: Of the two racks (7), one is integrally formed with the first slider (2), and the other is integrally formed with the second slider (3).
5. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: A rotating shaft (8) is also provided in the groove (101), and the gear (4) is sleeved on the rotating shaft (8).
6. The one-to-two inner and outer slider mechanism according to claim 5, characterized in that: Both ends of the rotating shaft (8) are provided with shaft grooves (102), and bearings (9) are provided in the shaft grooves (102) for connection with the rotating shaft (8).
7. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: Guide blocks (10) are provided on both sides of the first sliding block (2); the guide blocks (10) are connected to the fixed template (1) and form a first guide groove structure (11) extending along the moving direction.
8. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: A support block (12) is provided below the second sliding block (3); the support block (12) is connected to the fixed template (1) and forms a second guide groove structure (13) extending along the moving direction.
9. The one-to-two inner and outer slider mechanism according to claim 1, characterized in that: At least two ejector rods (14) are disposed inside the mold core (6).
10. The one-to-two inner and outer slider mechanism according to any one of claims 1 to 9, characterized in that: A spring pin structure (15) is provided at one end of the first sliding block (2) away from the injection cavity, and is used to tighten the first sliding block (2) and the inclined block (5).