Demolding mechanism for production of sliding cover mounting bracket

Abstract

The invention discloses a demolding mechanism for production of a sliding cover mounting bracket, and relates to the technical field of bracket demolding, the demolding mechanism comprises an elastic block assembly, an inclined top assembly is arranged on the inner wall of the elastic block assembly, a bottom assembly is arranged at the bottom end of the elastic block assembly, and a limiting assembly is arranged on the outer wall of the elastic block assembly; the elastic block assembly comprises an elastic block seat and an elastic block head, a group of elastic block connecting screws are arranged between the elastic block seat and the elastic block head, the pitched roof assembly comprises a pitched roof seat, and the pitched roof seat is movably inserted into the inner walls of the elastic block seat and the elastic block head; the device is relatively simple in structure, a traditional inclined ejector mechanism added in a sliding block is replaced at the position, mold manufacturing raw materials are saved, the machining amount of the raw materials is reduced, the mold manufacturing time and cost are reduced, the mold damage risk is also reduced, and the structure is that an inclined ejector is added in the fixed mold elastic block. The reverse buckle of the product also belongs to a fixed mold side reverse buckle, and has the advantage that compared with the product, the reverse buckle serves as the retreating stroke of a fixed mold elastic block and is smaller than the retreating stroke of a movable mold sliding block.

Description

Technical Field

[0001] The invention relates to the technical field of bracket demoulding, in particular to a demoulding mechanism for producing a sliding cover mounting bracket. Background Art

[0002] Slide cover mounting brackets are widely used in modern industry and daily life. Slide cover mounting brackets are usually used to support and fix the slide cover structure so that the slide cover can slide smoothly on a specific track. It is generally made of high-strength materials to ensure that it can withstand a certain weight and pressure during use. In the production process of slide cover mounting brackets, the demoulding mechanism plays a vital role.

[0003] The existing demoulding process of the sliding cover generally adopts the conventional scheme of demoulding with a slanted top in the slider. Such demoulding process often has some problems. First, if a movable mold slider is used, the corresponding undercut amount will be much larger, and the backward stroke of the slider will become larger, which will cause the mold to be unstable and the product molding cycle to be longer. Second, the composite mechanism with a slanted top in the slider is composed of many parts. The more parts, the more likely it is to be damaged, which leads to a high risk of damage to the mold during the production process. Moreover, the large number of components will also cause the mechanism to be large, occupying a large mold space, and the product has one mold and four cavities, which cannot meet the machine production requirements specified by the customer. To this end, the present invention provides a demoulding mechanism for the production of a sliding cover mounting bracket. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a demoulding mechanism for the production of a sliding cover mounting bracket, which solves the following problems: first, if a movable mold slider is used, the corresponding undercut amount will be much larger, and the backward stroke of the slider will become larger, which will not only make the mold unstable but also lead to a longer product molding cycle; second, the slider is composed of a plurality of parts with an inclined top composite mechanism. The more parts there are, the more likely it is that the mold will be damaged, which leads to a high risk of damage to the mold during product production.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a demoulding mechanism for producing a sliding cover mounting bracket, comprising a spring block assembly, the inner wall of the spring block assembly is provided with a slanted top assembly, the bottom end of the spring block assembly is provided with a bottom assembly, and the outer wall of the spring block assembly is provided with a limit assembly;

[0006] The spring block assembly includes a spring block seat and a spring block head, a group of spring block connecting screws are arranged between the spring block seat and the spring block head, the spring block seat and the spring block head are fixedly connected by the group of spring block connecting screws, the top of the spring block seat is provided with two circular grooves, and the bottom ends of the inner walls of the two circular grooves are fixedly installed with spring guide rods;

[0007] The inclined top assembly includes an inclined top seat, and the inclined top seat is movably inserted in the inner wall of the bullet block seat and the bullet block head;

[0008] The bottom assembly comprises a wear-resistant plate at the bottom of the elastic block, and the inner wall of the wear-resistant plate at the bottom of the elastic block is provided with two movable mold hooks;

[0009] The limiting assembly comprises two spring block guide limiting blocks and a T-shaped block.

[0010] Preferably, the outer walls of the two spring guide rods are sleeved with spring block driving springs, one end of the two spring block driving springs are respectively fixedly connected to the bottom ends of the inner walls of the two circular grooves, and the other ends of the two spring block driving springs are respectively fixedly connected to the outer walls of the two spring guide rods.

[0011] Preferably, a through groove is formed through the outer wall of the bullet head, and two placement grooves are formed on the inner wall of the bullet seat. A tilted top driving spring is fixedly installed at the bottom end of the inner walls of the two placement grooves. One end of the two tilted top driving springs away from the bullet seat is fixedly connected to the tilted top seat, and a second sliding groove is formed through one end of the outer wall of the tilted top seat.

[0012] Preferably, a group of limiting glass beads are arranged at the top of the inclined top seat, and two inclined top guide slides are slidably connected to the inner wall of the second slide groove, and the inner walls of the two inclined top guide slides are both provided with inclined tops, and the two inclined tops pass through the through grooves, and products are arranged on one side of the outer walls of the two inclined tops, and the outer walls of the products are penetrated with a closed groove.

[0013] Preferably, a T-shaped slot is provided on the outer wall of the spring block seat, a T-shaped block is slidably connected to the inner wall of the T-shaped slot, two T-shaped block fixing screws are provided on the outer wall of the T-shaped block, and a T-shaped block fixing pin is provided on the outer wall of the T-shaped block.

[0014] Preferably, first sliding grooves are provided on both sides of the outer wall of the spring block seat, the inner walls of the two first sliding grooves are slidably connected with spring block limiting guide blocks, and the outer walls of the two spring block limiting guide blocks are provided with spring block limiting guide block fixing screws.

[0015] Preferably, the wear-resistant plate at the bottom of the block is slidably connected to the block seat and the block head, and a group of wear-resistant plate screws at the bottom of the block are provided at the bottom end of the wear-resistant plate at the bottom of the block.

[0016] Preferably, the outer walls of the two movable mold hooks are provided with movable mold hook screws, one of the two movable mold hooks is fixedly connected to the spring block seat, and one of the two movable mold hooks is fixedly connected to the wear-resistant plate at the bottom of the spring block.

[0017] Beneficial Effects

[0018] The present invention provides a demoulding mechanism for producing a sliding cover mounting bracket. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The demoulding mechanism used in the production of the slide cover mounting bracket has a relatively simple structure. It replaces the traditional slider with an inclined top mechanism, which saves raw materials for mold production, reduces the amount of raw material processing, reduces mold production time and cost, and reduces the risk of mold damage. At the same time, in the disassembly and assembly of the mold, this mechanism has few parts. While the molding glue surface is formed, the mechanism itself also plays a driving effect, and the molding structure is the driving structure. The small proportion of the mechanism means that the amount of iron removed from the mold itself is small, which effectively ensures the strength of the mold. The mechanism is small in size and light in weight, which is also conducive to disassembly and assembly, reducing the workload of daily maintenance of the mold. At the same time, the small weight of the mechanism is beneficial to its movement itself. The sliding friction caused by the small weight is small, and it is easier to drive, making the mechanism smoother during operation. This composite mechanism shortens the production cycle of injection molds for injection molding products and effectively improves the efficiency of injection molding production.

[0020] (2) The demoulding mechanism used in the production of the slide cover mounting bracket is similar to the composite structure of a slider plus a slanted top. The difference is that the slider is on the movable mold side, while this structure has a slanted top inside the fixed mold spring block. This product undercut also belongs to the fixed mold side undercut. The advantage is that compared with the product, the withdrawal stroke of this undercut as the fixed mold spring block is smaller than the withdrawal stroke of the movable mold slider.

[0021] (3) The demoulding mechanism for the production of the slide cover mounting bracket has an ingenious structural design and few parts, so that the overall structure is small and has low complexity. After the mold test verification, it is shown that the structure is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of demoulding of the product of the present invention;

[0024] Figure 3 A schematic diagram of product demoulding from another perspective of the present invention;

[0025] Figure 4 It is a schematic diagram of the disassembly of the limit assembly of the present invention;

[0026] Figure 5 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 6 It is a cross-sectional view of the overall structure of the present invention from another perspective;

[0028] Figure 7 is a cross-sectional view of a bullet block assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the relevant structure of the bullet block assembly of the present invention;

[0030] Fig. 9 It is a schematic diagram of the inclined top assembly of the present invention;

[0031] Fig.10 It is a cross-sectional view of the inclined top assembly of the present invention.

[0032] In the figure: 1. spring block assembly; 11. spring block seat; 12. T-slot; 13. round slot; 14. spring guide rod; 15. spring block driving spring; 17. spring block head; 18. spring block connecting screw; 110. through slot; 112. first slide slot; 2. inclined top assembly; 21. inclined top seat; 22. inclined top driving spring; 23. inclined top; 24. second slide slot; 25. inclined top guide slide; 26. limiting glass bead; 3. bottom assembly; 31. wear-resistant plate screw at the bottom of spring block; 32. wear-resistant plate at the bottom of spring block; 33. movable mold hook; 34. movable mold hook screw; 4. product; 5. limiting assembly; 51. spring block limiting guide block; 52. spring block limiting guide block fixing screw; 53. T-block; 54. T-block fixing screw; 55. T-block fixing pin. DETAILED DESCRIPTION

[0033] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] The present invention provides two technical solutions:

[0035] Figure 1-Figure 10 The first embodiment is shown: a demoulding mechanism for producing a slide cover mounting bracket, comprising a spring block assembly 1, an inner wall of the spring block assembly 1 is provided with a slanted top assembly 2, a bottom end of the spring block assembly 1 is provided with a bottom assembly 3, and an outer wall of the spring block assembly 1 is provided with a limit assembly 5;

[0036] The spring block assembly 1 includes a spring block seat 11 and a spring block head 17. A group of spring block connecting screws 18 are arranged between the spring block seat 11 and the spring block head 17. The spring block seat 11 and the spring block head 17 are fixedly connected by a group of spring block connecting screws 18. The spring block head 17 and the spring block seat 11 are fixedly connected by the spring block connecting screws 18 to form a spring block body. The measurement shows that the angle between the driving direction and the main demoulding direction is 24°, and the stroke along the spring block driving direction is 60mm. After the mold is opened for 54.81mm, the spring block has been ejected 60mm along its driving direction and is released by 24.404mm, completing a spring block release action. Two circular grooves 13 are arranged on the top of the spring block seat 11. The bottom ends of the inner walls of the two circular grooves 13 are fixedly installed with spring guide rods 14. When the reset stroke of the spring block driving spring 15 is too long, the stability of the spring block driving spring 15 during the reset process is ensured to prevent the spring block driving spring 15 from deflecting or failing.

[0037] The inclined ejector assembly 2 includes an inclined ejector seat 21, which is movably inserted into the inner wall of the spring block seat 11 and the spring block head 17, and the inclined ejector seat 21 provides a tripping / resetting direction for the inclined ejector 23 and a device for returning the inclined ejector 23 to its original position;

[0038] The bottom component 3 includes a wear plate 32 at the bottom of the elastic block. Two movable mold hooks 33 are arranged on the inner wall of the wear plate 32 at the bottom of the elastic block. The wear plate 32 at the bottom of the elastic block plays a role in reducing friction when the elastic block slides out / resets.

[0039] The limiting assembly 5 includes two spring block guide limiting blocks 51 and a T-shaped block 53. The T-shaped block 53 provides a guiding function for the spring block, and the spring block limiting guiding block 51 limits the spring block and also prevents the spring block from falling.

[0040] The outer walls of the two spring guide rods 14 are both sleeved with spring block driving springs 15, one end of the two spring block driving springs 15 are respectively fixedly connected to the bottom ends of the inner walls of the two circular grooves 13, and the other ends of the two spring block driving springs 15 are respectively fixedly connected to the outer walls of the two spring guide rods 14. The spring block driving spring 15 is the power system of the spring block. After the mold is opened, the restoring force of the spring block driving spring 15 drives the spring block to come out.

[0041] A through groove 110 is formed through the outer wall of the block head 17, and two placement grooves are formed on the inner wall of the block seat 11. The bottom ends of the inner walls of the two placement grooves are fixedly installed with inclined top driving springs 22. The two inclined top driving springs 22 are fixedly connected to the inclined top seat 21 at one end away from the block seat 11. The inclined top driving springs 22 provide a continuous ejection force to the inclined top seat 21 when the block retreats in the tripping direction. A second sliding groove 24 is formed through one end of the outer wall of the inclined top seat 21.

[0042] A group of limiting glass beads 26 are arranged at the top of the inclined top seat 21, and the limiting glass beads 26 prevent the inclined top seat 21 from being displaced in the direction of the inclined top 23 being released / reset. The front and rear distance of the limiting glass beads 26 is also the ejection height required by the inclined top 23. The inclined top 23 is released by displacing in the ejection direction through angle conversion. The inner wall of the second slide groove 24 is slidably connected with two inclined top guide slides 25. The inclined top guide slides 25 are used to reduce the friction when the inclined top 23 is released / reset. The inner walls of the two inclined top guide slides 25 are both provided with inclined tops 23. The inclined top 23 is undercut on the inner sides of the two sides of the ejection product 4. If the undercut is longer, the space required is larger, the ejection stroke of the inclined top 23 is larger, the longer the inclined top rod is, the thinner it appears, the worse the strength is, and the more unstable the mold is. The longer the mold is, the higher the cost. Two inclined tops 23 pass through the through slot 110. One side of the outer wall of the two inclined tops 23 is provided with product 4. Product 4 generally stays on the movable mold side. The movable mold slider solution is adopted. It needs to be withdrawn 37mm before product 4 can be ejected upward. For the movable mold slider, the relative movement relationship is that the product is finally ejected upward, so the release amount is large. The product generally stays on the movable mold side. The fixed mold spring block solution is adopted. It needs to be withdrawn 6mm before product 4 can be ejected. When the mold is opened, product 4 moves downward with the movable mold, so the release amount is relatively much smaller. A closed groove is penetrated on the outer wall of product 4. The closed groove is undercut and formed by adding an inclined top to the spring block. The rectangular hole in the middle of the closed groove is also undercut and formed by a fixed mold spring block. The spring block head 17 is the undercut formed steel material of the product 4 along the main demolding direction. The measurement shows that the angle between the movement direction of the inclined ejector 23 and the ejection direction is 12°. The spring block moves backward relative to the inclined ejector 23. When the spring block moves backward 15mm, the inclined ejector completes the release action. The inclined ejector releases 3.19mm, and then the inclined ejector and the spring block move together to complete the remaining stroke.

[0043] Figure 1-Figure 10 A second embodiment is shown, which mainly differs from the first embodiment in that a T-slot 12 is provided on the outer wall of the block seat 11, a T-block 53 is slidably connected to the inner wall of the T-slot 12, two T-block fixing screws 54 are provided on the outer wall of the T-block 53, a T-block fixing pin 55 is provided on the outer wall of the T-block 53, the T-block fixing pin 55 positions the T-block 53 with the fixed mold side to prevent the T-block 53 from being displaced along the direction of the T-slot 12, the T-block fixing screw 54 fixes the T-block 53 with the fixed mold side, and the T-block 53 provides a guiding function for the block.

[0044] First sliding grooves 112 are provided on both sides of the outer wall of the spring block seat 11, and the inner walls of the two first sliding grooves 112 are slidably connected with spring block limiting guide blocks 51. The outer walls of the two spring block limiting guide blocks 51 are provided with spring block limiting guide block fixing screws 52. The spring block limiting guide block fixing screws 52 fix the spring block limiting guide block 51 on the fixed mold side. The spring block limiting guide block 51 limits the spring block and prevents the spring block from falling.

[0045] The wear-resistant plate 32 at the bottom of the block is slidably connected to the block seat 11 and the block head 17. A group of wear-resistant plate screws 31 at the bottom of the block are provided at the bottom end of the wear-resistant plate 32 at the bottom of the block. The wear-resistant plate 32 at the bottom of the block reduces friction when the block slides out / resets. The wear-resistant plate screws 31 at the bottom of the block fix the wear-resistant plate 32 at the bottom of the block to the movable mold side.

[0046] The outer walls of the two movable mold hooks 33 are provided with movable mold hook screws 34, and the movable mold hook screws 34 fix the movable mold hook 33 to the movable mold side. One of the two movable mold hooks 33 is fixedly connected to the spring block seat 11. The movable mold hook 33 prevents the spring block from failing due to the failure of the spring block driving spring 15 or the static friction force is too large, resulting in the spring block being unable to pop out, thereby avoiding mold collision. One of the two movable mold hooks 33 is fixedly connected to the wear-resistant plate 32 at the bottom of the spring block.

[0047] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] During operation, first, the two spring block limiting guide blocks 51 are fixed to the fixed mold side by the spring block limiting guide block fixing screws 52, and then the two guide blocks 51 are movably inserted in the two first slide grooves 112, the guide block 51 plays a limiting role for the spring block seat 11, and also prevents the spring block seat 11 from falling, and then the T-block 53 is fixed to the fixed mold side by the T-block fixing screws 54, and the T-block 53 is movably inserted in the T-slot 12, the T-block 53 provides a guiding role for the spring block seat 11, the spring block head 17 and the spring block seat 11 are fixedly connected by the spring block connecting screws 18 to form a spring block body together, the spring block seat 11 is in the initial position under the pre-pressure of the spring block driving spring 15, and the inclined top 23 is in the initial position, and as the mold is opened, the fixed mold and the movable mold are gradually separated. At this time, the block seat 11 moves toward the direction of the T-block 53 together with the block head 17 due to the elastic force of the block driving spring 15. Under the action of the block driving spring 15, the block begins to move toward the release direction. Since the T-block 53 and the fixed mold together constitute the guiding function of the block, the block can move stably along the predetermined direction. At the same time, during the movement of the block, the wear-resistant plate 32 at the bottom of the block reduces the friction between the block and the movable mold, thereby increasing the life of the mold. While the block is moving, the inclined top driving spring 22 releases its elastic force, hindering the overall inclined top assembly 2 and the block from moving toward the release direction of the block. When the block retreats in the release direction, the inclined top driving spring 22 provides a continuous ejection force to the inclined top seat 21. In this way, the inclined top 23 and the spring block form a relative displacement, and the inclined top 23 begins to move in the disengagement direction of the closed groove in the product 4. With the displacement of the inclined top 23, the inclined top 23 gradually disengages from the closed groove in the product 4, thereby completing a demoulding action. When the mold is opened, the product 4 moves downward with the movable mold, so the disengagement amount is relatively much smaller, thereby reducing the withdrawal stroke. When the mold is closed, the mold is in the open mold state, and the inclined top 23 and the spring block are respectively located at the position after the disengagement. During the mold closing process, the spring block is squeezed by the fixed mold, overcomes the elastic force of the spring block driving spring 15, moves in the mold closing direction, and finally returns to the initial position. With the mold closing action, the fixed mold and the movable mold gradually approach the inclined top 23 and contact the mold movable mold side through the penetration surface of its head, and then overcomes the elastic force of the spring block driving spring 15 to complete the reset of the inclined top 23.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A demoulding mechanism for producing a slide cover mounting bracket, comprising a spring block assembly (1), characterized in that: The inner wall of the spring block assembly (1) is provided with an inclined top assembly (2), the bottom end of the spring block assembly (1) is provided with a bottom assembly (3), and the outer wall of the spring block assembly (1) is provided with a limit assembly (5); The spring block assembly (1) comprises a spring block seat (11) and a spring block head (17); a group of spring block connecting screws (18) are arranged between the spring block seat (11) and the spring block head (17); the spring block seat (11) and the spring block head (17) are fixedly connected via the group of spring block connecting screws (18); two circular grooves (13) are arranged at the top of the spring block seat (11); and spring guide rods (14) are fixedly mounted at the bottom ends of the inner walls of the two circular grooves (13); The inclined top assembly (2) comprises an inclined top seat (21), and the inclined top seat (21) is movably inserted into the inner wall of the bullet block seat (11) and the bullet block head (17); The bottom component (3) comprises a spring block bottom wear-resistant plate (32), and the inner wall of the spring block bottom wear-resistant plate (32) is provided with two movable mold hooks (33); The limiting assembly (5) comprises two spring-block guide limiting blocks (51) and a T-shaped block (53).

2. A demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: The outer walls of the two spring guide rods (14) are sleeved with spring block driving springs (15), one end of the two spring block driving springs (15) is respectively fixedly connected to the bottom ends of the inner walls of the two circular grooves (13), and the other ends of the two spring block driving springs (15) are respectively fixedly connected to the outer walls of the two spring guide rods (14).

3. A demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: The outer wall of the bullet head (17) is provided with a through groove (110), and the inner wall of the bullet seat (11) is provided with two placement grooves. The bottom ends of the inner walls of the two placement grooves are fixedly installed with inclined top driving springs (22). One end of the two inclined top driving springs (22) away from the bullet seat (11) is fixedly connected to the inclined top seat (21), and one end of the outer wall of the inclined top seat (21) is provided with a second sliding groove (24).

4. A demoulding mechanism for producing a slide cover mounting bracket according to claim 3, characterized in that: A group of limiting glass beads (26) is arranged at the top of the inclined top seat (21); two inclined top guide slides (25) are slidably connected to the inner wall of the second slide groove (24); the inner walls of the two inclined top guide slides (25) are both provided with inclined tops (23); the two inclined tops (23) penetrate the through groove (110); a product (4) is arranged on one side of the outer wall of the two inclined tops (23); and a closed groove is penetrated through the outer wall of the product (4).

5. The demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: The outer wall of the spring block seat (11) is provided with a T-shaped groove (12), the inner wall of the T-shaped groove (12) is slidably connected with a T-shaped block (53), the outer wall of the T-shaped block (53) is provided with two T-shaped block fixing screws (54), and the outer wall of the T-shaped block (53) is provided with a T-shaped block fixing pin (55).

6. A demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: First sliding grooves (112) are provided on both sides of the outer wall of the spring block seat (11), the inner walls of the two first sliding grooves (112) are slidably connected with spring block limiting guide blocks (51), and the outer walls of the two spring block limiting guide blocks (51) are provided with spring block limiting guide block fixing screws (52).

7. A demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: The block bottom wear plate (32) is slidably connected to the block seat (11) and the block head (17), and a group of block bottom wear plate screws (31) are arranged at the bottom end of the block bottom wear plate (32).

8. The demoulding mechanism for producing a slide cover mounting bracket according to claim 1, characterized in that: The outer walls of the two movable mold hooks (33) are both provided with movable mold hook screws (34), one of the two movable mold hooks (33) is fixedly connected to the spring block seat (11), and one of the two movable mold hooks (33) is fixedly connected to the wear-resistant plate (32) at the bottom of the spring block.

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