Middle mold anti-falling mechanism of laminated mold

Abstract

The utility model discloses an anti-falling mechanism for a middle mold of a laminated mold, which relates to the technical field of injection molding and comprises a first locking component, a second locking component, a first rack, a second rack, a third rack and a fourth rack, the first locking component and the second locking component are fixedly connected to the middle mold, the first rack and the second rack penetrate through the first locking component, and the fourth rack penetrates through the second locking component. The third rack and the fourth rack penetrate through the second locking assembly, the first rack and the fourth rack are fixedly connected to the rear mold, the second rack and the third rack are fixedly connected to the front mold, and the first rack and the fourth rack are provided with check blocks, so that the first locking assembly and the second locking assembly are locked by the first rack and the fourth rack. The first locking assembly comprises a gear cover. The device has the beneficial effects of effectively preventing the middle mold from falling off, being simple and convenient to install, and effectively ensuring the safety of the mold and operators.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a middle mold anti-drop mechanism for a stacked mold. Background Art

[0002] A mold is a tool or device used in manufacturing to process raw materials into finished products of a specific shape. It can be made of metal, plastic, rubber and other materials, and can have various shapes and sizes according to production needs. A mold is usually composed of one or more parts, including a mold body and mold accessories, which work together to complete specific processing tasks. The mold itself is complex to make and has high production costs, so it is necessary to add safety measures to ensure the safety of the mold. At present, most manufacturers can only increase the thickness of the front and rear molds, and then install protective baffles or hook suspension to prevent the mold from falling. The model of the injection molding machine corresponding to such a mold needs to be increased, and the material cost of the mold manufacturing itself will also increase. A few manufacturers even directly abandon safety protection measures. Therefore, there is an urgent need for a mold drop prevention mechanism in a stacked mold to solve the above problems. Utility Model Content

[0003] In view of the above technical defects, the present invention provides a middle mold anti-drop mechanism for a laminated mold to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a laminated mold middle mold anti-drop mechanism, characterized in that it includes a first locking assembly, a second locking assembly, a first rack, a second rack, a third rack, and a fourth rack. The first locking assembly and the second locking assembly are fixedly connected to the middle mold, the first rack and the second rack pass through the first locking assembly, the third rack and the fourth rack pass through the second locking assembly, the first rack and the fourth rack are fixedly connected to the rear mold, the second rack and the third rack are fixedly connected to the front mold, and the first rack and the fourth rack are provided with a stopper so that the first rack and the fourth rack lock the first locking assembly and the second locking assembly.

[0005] Preferably, the first locking assembly includes a gear cover, a first boss is provided on the upper inner portion of the gear cover, a second boss is provided on the lower inner portion, a recess is formed between the first boss and the second boss, and a slide groove is provided below the recess near the second boss.

[0006] Preferably, a first side wheel and a second side wheel are provided in the first locking assembly, a middle gear is provided between the first side wheel and the second side wheel, the first rack is meshed with the middle gear and is located between the first side wheel and the middle gear, the second rack is meshed with the middle gear and is located between the second side wheel and the middle gear, the third rack is located at the upper part of the second locking assembly, and the fourth rack is located at the lower part of the second locking assembly.

[0007] Preferably, the rear mold is provided with a first rear mold guide column and a second rear mold guide column, and the front mold is provided with a first front mold guide column and a second front mold guide column. The first rear mold guide column and the second rear mold guide column are respectively located at the diagonal corners of the rear mold and perpendicular to the rear mold. The first front mold guide column and the second front mold guide column are respectively located at the diagonal corners of the front mold and perpendicular to the front mold. The first rear mold guide column, the second rear mold guide column, the first front mold guide column and the second front mold guide column all pass through the middle mold and are slidably connected to the middle mold.

[0008] Preferably, side openings are provided on both sides of the rear mold, and the width of the side openings matches the second rack and the third rack.

[0009] Preferably, the first rack and the second rack are fixedly connected to the rear mold by hexagonal screws and inlay blocks, and the third rack and the fourth rack are fixedly connected to the front mold by hexagonal screws and inlay blocks.

[0010] Preferably, the first side wheel and the second side wheel are located on the first boss and the second boss respectively, and the middle gear is located on the concave platform between the first boss and the second boss.

[0011] Compared with the prior art, the beneficial effects of the anti-drop mechanism for the middle mold of the stacked mold of the utility model are as follows: the device is provided with a first locking assembly, a second locking assembly, and a rack fixedly installed on the rear mold and the front mold. When the mold opening stroke of the injection molding machine is improperly set, or the mold opening position is overshot, the rack of the rear mold cooperates with the first locking assembly and the second locking assembly to lock the middle mold to prevent the middle mold from falling. This mechanism does not require the size of the injection molding machine and is suitable for all injection molding machines. It also does not require additional thickness of the mold. Only by applying this structure can the mold be prevented from falling. It saves costs, has a simple processing procedure, and does not require an increase in the total thickness of the mold; it does not require special requirements for the injection molding machine and has a wide range of applications; it is easy to install, and when docking with the injection molding machine, there is no need to adjust the gap between the middle mold core and the injection molding machine track, thereby ensuring the safety of the mold and the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural diagram of the first locking assembly and the mold combination;

[0013] Figure 2 This is a structural diagram of the mold under normal mold opening conditions;

[0014] Figure 3 This is a structural diagram of the mold opening under overshoot conditions;

[0015] Figure 4 This is a schematic diagram of the front structure of the mold assembly;

[0016] Figure 5 Schematic diagram of the internal structure of the combination of the middle mold and the first locking assembly;

[0017] Figure 6 is a schematic diagram of the exploded structure of the first locking assembly;

[0018] Figure 7 It is a structural schematic diagram of the combination of the gear cover and the first rack.

[0019] In the figure: 1-first rack, 101-stopper, 2-middle mold, 3-front mold, 4-rear mold, 401-side opening, 5-first front mold guide post, 6-first rear mold guide post, 7-second rack, 8-third rack, 9-fourth rack, 10-hexagonal screw, 11-second front mold guide post, 12-second rear mold guide post, 13-first locking assembly, 1301-gear cover, 130101-slide groove, 130102-first boss, 130103-second boss, 14-second locking assembly, 15-middle gear, 16-first side wheel, 17-second side wheel, 18-inlaid block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Please see the attached Figure 1-7 The utility model provides an embodiment: a laminate mold middle mold anti-drop mechanism, including a first locking assembly 13, a second locking assembly 14, a first rack 1, a second rack 7, a third rack 8, and a fourth rack 9. The first locking assembly 13 and the second locking assembly 14 are fixedly connected to the middle mold 2, the first rack 1 and the second rack 7 pass through the first locking assembly 13, the third rack 8 and the fourth rack 9 pass through the second locking assembly 14, the first rack 1 and the fourth rack 9 are fixedly connected to the rear mold 4, the second rack 7 and the third rack 8 are fixedly connected to the front mold 3, and the first rack 1 and the fourth rack 9 are provided with a stopper 101, so that the first rack 1 and the fourth rack 9 lock the first locking assembly 13 and the second locking assembly 14.

[0022] The first locking assembly 13 and the second locking assembly 14 are designed to guide the horizontal movement of the first rack 1, the second rack 7, the third rack 8, and the fourth rack 9, ensuring their correct position and mutual engagement during the mold opening and closing operation. The four gears are fixedly mounted on the front mold 3 and the rear mold 4 in a diagonally complementary manner, so that the racks can effectively support the middle mold 2. In order to effectively prevent the middle mold 2 from falling when the mold is opened, the first rack 1 and the fourth rack 9 of the rear mold 4 are designed to be locked by setting a stopper 101. The stopper 101 is locked with the gear cover slide of the first locking assembly 13 and the second locking assembly 14 to prevent the middle mold 2 from separating excessively from the rear mold 4 and falling. The design of the rear mold 4 is not only to support the structure and function of the mold, but also to lock the middle mold 2 through its first rack 1 and the fourth rack 9 to prevent the racks from falling off or moving, thereby ensuring the stability and safety of the mold.

[0023] The first locking assembly 13 includes a gear cover 1301, a first boss 130102 is provided on the upper inner portion of the gear cover 1301, and a second boss 130103 is provided on the lower inner portion. A recess is formed between the first boss 130102 and the second boss 130103, and a slide groove 130101 is provided below the recess near the second boss 130103.

[0024] A first side wheel 16 and a second side wheel 17 are provided in the first locking assembly 13, and a middle gear 15 is provided between the first side wheel 16 and the second side wheel 17. The first rack 1 and the middle gear 15 are meshed with each other and are located between the first side wheel 16 and the middle gear 15. The second rack 7 and the middle gear 15 are meshed with each other and are located between the second side wheel 17 and the middle gear 15. The third rack 8 is located at the upper part of the second locking assembly 14, and the fourth rack 9 is located at the lower part of the second locking assembly 14.

[0025] The first and second racks 1 and 7 are fixedly connected to the rear mold 4 via hexagonal screws 10 and inlays 18. The third and fourth racks 8 and 9 are fixedly connected to the front mold 3 via hexagonal screws 10 and inlays 18. The racks are connected to the mold blocks via inlays and then tightened with hexagonal screws to ensure a tight connection between the racks and the mold blocks, preventing them from falling off during frequent opening and closing of the mold and preventing the middle mold 2 from falling.

[0026] The first side wheel 16 and the second side wheel 17 are located on the first boss 130102 and the second boss 130103 respectively, and the middle gear 15 is located on the concave platform between the first boss 130102 and the second boss 130103.

[0027] The middle gear 15 is located in the concave area between the first boss 130102 and the second boss 130103 , and its position ensures that the middle gear 15 can simultaneously engage with two racks moving in opposite directions.

[0028] The second side wheel 17 is symmetrical with the first side wheel 16, and ensures the balance and stability of the rack movement in a rolling manner, reduces the friction loss of the rack during movement, improves the working efficiency and service life of the mold, and ensures that the rack can move smoothly along the track. The rolling method also reduces energy loss and heat generated by friction.

[0029] The rear mold 4 is provided with a first rear mold guide post 6 and a second rear mold guide post 12, and the front mold 3 is provided with a first front mold guide post 5 and a second front mold guide post 11. The first rear mold guide post 6 and the second rear mold guide post 12 are respectively located at diagonal positions perpendicular to the rear mold 4, and the first front mold guide post 5 and the second front mold guide post 11 are respectively located at diagonal positions perpendicular to the front mold 3. The first rear mold guide post 6, the second rear mold guide post 12, the first front mold guide post 5, and the second front mold guide post 11 all pass through the middle mold 2 and are slidably connected to the middle mold 2. Side openings 401 are provided on both sides of the rear mold 4, and the width of the side openings 401 matches the width of the second rack 7 and the third rack 8.

[0030] The first rear mold guide pin 6 and the second rear mold guide pin 12 are located on the diagonal line of the rear mold 4 and are perpendicular to the plane of the rear mold 4. Their function is to ensure the stability and verticality of the rear mold during the opening and closing movement of the mold, so as to achieve coordinated movement between the various parts of the mold.

[0031] The side openings 401 are located on both sides of the rear mold, and their width matches the size of the second rack 7 and the third rack 8, aiming to provide appropriate space for the movement of the racks and ensure that they are not obstructed or interfered when moving sideways.

[0032] The specific working method of this embodiment is as follows:

[0033] When the mold opening position is normal (such as Figure 2 ), the rear mold 4, middle mold 2, and front mold 3 will not completely separate. The rear mold 4 is supported and connected to the middle mold 2 by the first rear mold guide pillars 6 and the second rear mold guide pillars 12. The front mold 3 is supported and connected to the middle mold 2 by the first front mold guide pillars 5 and the second front mold guide pillars 11. In this case, the middle mold 2 relies on the guide pillars for support, ensuring that it remains firmly in the correct position during the mold opening process and will not fall or move. At the same time, the guide pillars move with the opening and closing of the mold, keeping the modules on the same horizontal line and the overall connection tightly.

[0034] When abnormal conditions occur during the mold opening process (such as Figure 3), overshoot occurs, the first front mold guide post 5 and the second front mold guide post 11 of the front mold 3 will be separated from the middle mold 2, resulting in no longer supporting the middle mold 2. In order to prevent the middle mold 2 from falling off due to the overshoot of the front mold 3, the first rack 1 and the fourth rack 9 of the rear mold 4 are provided with a stopper. Since the first rack 1 and the fourth rack 9 are tightly connected to the rear mold 4, even if overfilling occurs and the middle mold 2 moves excessively toward the side of the front mold 3, the sliding groove of the first locking component 13 and the second locking component 14 shell cooperates with the stopper to lock the middle mold 2. The middle mold 2 is supported by the first rear mold guide post 6 and the second rear mold guide post 12 of the rear mold 4 and the first rack 1 and the fourth rack 9. This special structural design ensures that the middle mold 2 remains in a safe position under abnormal circumstances, avoiding the situation where the middle mold 2 falls or is damaged due to overshoot of the mold opening position. The characteristics of this structure are simple and practical, which can effectively improve the safety and reliability of the mold and reduce the possibility of damage or accidents caused by operational errors.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A stacking mold anti-drop mechanism, characterized in that: The invention comprises a first locking assembly (13), a second locking assembly (14), a first rack (1), a second rack (7), a third rack (8), and a fourth rack (9); the first locking assembly (13) and the second locking assembly (14) are fixedly connected to the middle mold (2); the first rack (1) and the second rack (7) pass through the first locking assembly (13); the third rack (8) and the fourth rack (9) pass through the second locking assembly (14); the first rack (1) and the fourth rack (9) are fixedly connected to the rear mold (4); the second rack (7) and the third rack (8) are fixedly connected to the front mold (3); the first rack (1) and the fourth rack (9) are provided with a stopper (101) so that the first rack (1) and the fourth rack (9) lock the first locking assembly (13) and the second locking assembly (14).

2. The anti-drop mechanism for the middle mold of a stacking mold according to claim 1, characterized in that: The first locking assembly (13) includes a gear cover (1301), wherein the upper inner portion of the gear cover (1301) is provided with a first boss (130102) and the lower inner portion is provided with a second boss (130103), a recess is formed between the first boss (130102) and the second boss (130103), and a slide groove (130101) is provided below the recess and near the second boss (130103).

3. The anti-drop mechanism for the middle mold of a stacking mold according to claim 2, characterized in that: The first locking assembly (13) is provided with a first side wheel (16) and a second side wheel (17), a middle gear (15) is provided between the first side wheel (16) and the second side wheel (17), the first rack (1) and the middle gear (15) are meshed with each other and are located between the first side wheel (16) and the middle gear (15), the second rack (7) and the middle gear (15) are meshed with each other and are located between the second side wheel (17) and the middle gear (15), the third rack (8) is located at the upper part of the second locking assembly (14), and the fourth rack (9) is located at the lower part of the second locking assembly (14).

4. The anti-drop mechanism for the middle mold of a stacked mold according to claim 1, characterized in that: The rear mold (4) is provided with a first rear mold guide column (6) and a second rear mold guide column (12), and the front mold (3) is provided with a first front mold guide column (5) and a second front mold guide column (11). The first rear mold guide column (6) and the second rear mold guide column (12) are respectively located at the diagonal of the rear mold (4) and perpendicular to the rear mold (4), and the first front mold guide column (5) and the second front mold guide column (11) are respectively located at the diagonal of the front mold (3) and perpendicular to the front mold (3). The first rear mold guide column (6), the second rear mold guide column (12), the first front mold guide column (5) and the second front mold guide column (11) all pass through the middle mold (2) and are slidably connected to the middle mold (2).

5. The anti-drop mechanism for the middle mold of a stacking mold according to claim 1, characterized in that: Side openings (401) are provided on both sides of the rear mold (4), and the width of the side openings (401) is matched with the second rack (7) and the third rack (8).

6. The anti-drop mechanism for the middle mold of a stacked mold according to claim 1, characterized in that: The first rack (1) and the second rack (7) are fixedly connected to the rear mold (4) through hexagonal screws (10) and inlay blocks (18), and the third rack (8) and the fourth rack (9) are fixedly connected to the front mold (3) through hexagonal screws (10) and inlay blocks (18).

7. The anti-drop mechanism for the middle mold of a stacked mold according to claim 3, characterized in that: The first side wheel (16) and the second side wheel (17) are respectively located on the first boss (130102) and the second boss (130103), and the middle gear (15) is located in the concave platform between the first boss (130102) and the second boss (130103).

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