Injection molding part mold with flexible insert

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold with a flexible insert, which comprises a lower mold and an upper mold, a forming cavity is arranged between the binding surfaces of the lower mold and the upper mold, and the forming cavity comprises an upper forming groove arranged on the bottom surface of the upper mold and a lower forming groove arranged on the top surface of the lower mold. A lap joint groove is formed in the inner side of the lower forming groove, the inner side of the lap joint groove is connected with a velvet piece in a clamped mode through a positioning mechanism, the positioning mechanism comprises a locking assembly and a pumping and pressing assembly, the locking assembly is used for rapidly locking the position of the velvet piece after lap joint, and the pumping and pressing assembly is used for unlocking the velvet piece so that the velvet piece can be adjusted to the proper lap joint position. The locking assembly comprises retraction grooves which are formed in the lower die and located on the two sides of the lap joint groove, and the inner sides of the retraction grooves communicate with the lap joint groove and the inner side of the lower forming groove. The down piece fixing device is simple in structure and convenient to operate, a worker can conveniently and rapidly fix the position of the down piece, and production cost and extra energy consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a flexible insert. Background Art

[0002] There is a kind of textile velvet sheet that is used as an insert and is injection molded together with an injection mold. However, during the injection molding process of the velvet sheet, the velvet sheet cannot be placed accurately because it cannot be fitted with the contoured surface of the mother mold. The requirements for placement and the size and shape of the velvet sheet are very important. If it is too wide, it cannot be placed or may be twisted. If it is too narrow, it may not be fixed in place, and the product may be displaced during the injection molding process. All of the above situations will cause glue overflow on the surface of the velvet sheet.

[0003] In order to solve the above technical problems, a Chinese patent with the announcement number CN218576816U in the prior art discloses a product injection mold with a flexible insert. It includes an upper mold, a lower mold and a pouring system, the upper mold is provided with a female mold, the lower mold is provided with a male mold, a cavity is formed between the male mold and the female mold, a movable part assembly is also provided inside the lower mold, and the movable part assembly is placed in the cavity, and the movable part assembly includes a movable block and a driving part for driving the movable block to move in the lower mold.

[0004] Although the above-mentioned existing technical solution can fix the velvet sheet so that it will not move during the injection molding process, it still needs to install a driving cylinder to adjust it when the velvet sheet is installed, which increases the production cost, and also requires additional energy supply to the driving cylinder, which increases energy consumption. Utility Model Content

[0005] The purpose of the utility model is to provide an injection mold with a flexible insert to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An injection mold with a flexible insert includes a lower mold and an upper mold, a molding cavity is provided between the fitting surfaces of the lower mold and the upper mold, the molding cavity includes an upper molding groove provided on the bottom surface of the upper mold and a lower molding groove provided on the top surface of the lower mold, a lap groove is provided on the inner side of the lower molding groove, a velvet piece is connected to the inner side of the lap groove by a positioning mechanism, the positioning mechanism includes a locking assembly and a pumping and pressing assembly, the locking assembly is used to quickly lock the velvet piece in a lapped position, and the pumping and pressing assembly is used to unlock the velvet piece to adjust the appropriate lapped position.

[0008] As a preferred solution of the utility model, the locking assembly includes retraction grooves opened inside the lower mold on both sides of the overlapping groove, the inner side of the retraction groove is connected with the overlapping groove and the inner side of the lower molding groove, the inner side of the retraction groove is slidably connected with a retraction plate, the opposite ends of the two groups of retraction plates are provided with grooves that are engaged with the outer wall of the velvet piece, the lower mold is provided with a resist groove on one side of the retraction groove, a resist plate that is engaged with the resist groove is installed on one side of the retraction plate, the lower mold is provided with a spring-pressing groove on one side of the resist groove, the spring-pressing groove is slidably connected with a spring-pressing block on the inner side of the spring-pressing groove, and a spring is installed between one side of the spring-pressing block and the inner wall of the spring-pressing groove.

[0009] As a preferred solution of the utility model, the side cross-sections of the retractable plate, the abutment plate and the elastic pressure block are all L-shaped, and slopes are provided at the opposite ends of the abutment plate and the elastic pressure block, and the two groups of slopes fit each other.

[0010] As a preferred solution of the utility model, the suction and pressing assembly includes pulling grooves opened on both sides of the outer wall of the lower mold, one side of the spring-pressing groove is provided with an extrusion groove extending to the inner side of the pulling groove, one side of the spring-pressing block is installed with a pressure rod, the pressure rod is slidingly connected to the extrusion groove, one end of the pressure rod extending to the inner side of the pulling groove is rotatably connected to a first pull ring, and a positioning hook is installed on the inner wall of the pulling groove.

[0011] As a preferred solution of the utility model, a movable groove is opened inside the lower mold on one side of the retraction groove, a movable column is slidably connected to the inner side of the movable groove, one end of the movable column is fixedly connected to one side of the retraction plate, and a second pull ring is installed at the other end of the movable column.

[0012] As a preferred solution of the utility model, a closed groove is provided on the outer wall of the lower mold on one side of the pulling groove, the inner side of the closed groove is connected to the inner side of the pulling groove, a closed plate is slidably connected to the inner side of the closed groove, a buckle groove is provided on one side of the closing plate, and an annular plate is installed on the inner side of the buckle groove.

[0013] As a preferred solution of the utility model, both sides of the inner wall of the closed groove are provided with limit grooves extending to the inner wall of the pulling groove, both ends of the closed plate are provided with limit blocks slidably connected to the limit grooves, both ends of the limit blocks are embedded with first magnetic blocks, and both sides of the inner wall of the limit groove are embedded with second magnetic blocks adsorbed with the first magnetic block.

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

[0015] In the utility model, the locking component can be used to quickly lock the position of the velvet sheet after it is placed, and the suction and pressure component can unlock the lock of the velvet sheet to provide sufficient space for personnel to adjust the velvet sheet to a suitable placing position. The utility model has a simple structure and is easy to operate, which makes it convenient for personnel to quickly fix the position of the velvet sheet, thereby reducing production costs and additional energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural diagram of the lower die and the upper die of the utility model;

[0018] Figure 3 It is a partial cross-sectional structural diagram of the pumping and pressing assembly of the utility model;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0020] In the figure: 1. lower mold; 2. upper mold; 3. upper molding groove; 4. lower molding groove; 5. overlapping groove; 6. velvet piece; 7. retraction groove; 8. retraction plate; 9. groove; 10. abutment plate; 11. spring block; 12. spring; 13. slope; 14. pull groove; 15. pressure rod; 16. first pull ring; 17. positioning hook; 18. movable column; 19. closing plate; 20. annular plate; 21. limit block; 22. first magnetic block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] An injection molding mold with a flexible insert includes a lower mold 1 and an upper mold 2, a molding cavity is opened between the fitting surfaces of the lower mold 1 and the upper mold 2, the molding cavity includes an upper molding groove 3 opened on the bottom surface of the upper mold 2 and a lower molding groove 4 opened on the top surface of the lower mold 1, a lap groove 5 is opened on the inner side of the lower molding groove 4, a velvet piece 6 is connected to the inner side of the lap groove 5 by a positioning mechanism, the positioning mechanism includes a locking component and a suction and pressing component, the locking component is used to quickly lock the velvet piece 6 in the lapped position, and the suction and pressing component is used to unlock the velvet piece 6 for adjusting the appropriate lapped position, the mold can be used to quickly lock the velvet piece 6 in the lapped position by the locking component, and the suction and pressing component can unlock the velvet piece 6 to provide enough space for personnel to adjust the velvet piece 6 to the appropriate lapped position, the structure is simple and the operation is convenient, which is convenient for the staff to quickly fix the position of the velvet piece 6, reducing production costs and additional energy consumption.

[0024] In this embodiment, if Figure 1 , Figure 2 and Figure 4 As shown, the locking assembly includes a retraction groove 7 opened inside the lower mold 1 on both sides of the overlapping groove 5, the inner side of the retraction groove 7 is connected with the overlapping groove 5 and the inner side of the lower molding groove 4, the inner side of the retraction groove 7 is slidably connected with a retraction plate 8, and the opposite ends of the two groups of retraction plates 8 are provided with grooves 9 that are engaged with the outer wall of the velvet sheet 6, the lower mold 1 is provided with a resist groove on one side of the retraction groove 7, and a resist plate 10 that is engaged with the resist groove is installed on one side of the retraction plate 8, and a spring groove is opened inside the lower mold 1 on one side of the resist groove, and a spring block 11 is slidably connected to the inner side of the spring groove, and a spring 12 is installed between one side of the spring block 11 and the inner wall of the spring groove, and the retraction plate 8, the resist plate 10 and the spring plate 8 are connected to the outer wall of the spring groove. The side cross-sections of the blocks 11 are L-shaped, and slopes 13 are provided at the opposite ends of the abutment plate 10 and the spring-pressing block 11. The two sets of slopes 13 fit together. First, the velvet sheet 6 is temporarily placed on the overlapping groove 5, and then the second pull ring is buckled to cooperate with the movable column 18 to move the retraction plate 8 toward the two ends of the velvet sheet 6. After the abutment plate 10 enters the abutment groove, it fits and squeezes the slope 13 on the spring-pressing block 11, forcing the spring-pressing block 11 to squeeze the spring 12 to retract, and the abutment plate 10 gradually enters the abutment groove. After it is completely entered, the spring 12 drives the spring-pressing block 11 to pop out and abut against the protruding end of the abutment plate 10. At this time, the groove 9 of the retraction plate 8 is engaged with the outer wall of the velvet sheet 6 to complete the positioning and installation.

[0025] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the pumping and pressing assembly includes a pull-sliding groove 14 opened on both sides of the outer wall of the lower mold 1, an extrusion groove extending to the inner side of the pull-sliding groove 14 is opened on one side of the spring-pressing groove, a pressure rod 15 is installed on one side of the spring-pressing block 11, the pressure rod 15 is slidably connected to the extrusion groove, one end of the pressure rod 15 extending to the inner side of the pull-sliding groove 14 is rotatably connected to a first pull ring 16, a positioning hook 17 is installed on the inner wall of the pull-sliding groove 14, a movable groove is opened on one side of the retraction groove 7 inside the lower mold 1, and a movable column 18 is slidably connected to the inner side of the movable groove, and one end of the movable column 18 It is fixedly connected to one side of the retraction plate 8, and a second pull ring is installed at the other end of the movable column 18. Then, if the placement position needs to be adjusted again, the first pull ring 16 can be buckled to drive the pressure rod 15 to move inside the extrusion groove, actively driving the spring block 11 to squeeze the spring 12 to retract, and then the first pull ring 16 is deflected and hung on the positioning hook 17, and then the second pull ring is pulled to cooperate with the movable column 18 to drive the retraction plate 8 and the abutment plate 10 to move, so that the groove 9 is away from the two ends of the velvet sheet 6, leaving enough space for personnel to adjust the position of the velvet sheet 6.

[0026] In this embodiment, if Figure 1 and Figure 3As shown, a closed groove is provided on the outer wall of the lower mold 1 at one side of the pull groove 14, the inner side of the closed groove is connected to the inner side of the pull groove 14, a closed plate 19 is slidably connected to the inner side of the closed groove, a buckle groove is provided on one side of the closed plate 19, a ring plate 20 is installed on the inner side of the buckle groove, and limiting grooves extending to the inner wall of the pull groove 14 are provided on both sides of the inner wall of the closed groove, and limiting blocks 21 slidably connected to the limiting grooves are installed at both ends of the closing plate 19, and first magnetic blocks 2 are embedded and installed at both ends of the limiting block 21. 2. Second magnetic blocks adsorbed with the first magnetic block 22 are embedded and installed on both sides of the inner wall of the limiting groove. Furthermore, the annular plate 20 buckled on the inner side of the buckling groove can drive the closing plate 19 to cooperate with the limiting block 21 to move along the direction of the limiting groove toward the inner side of the pulling groove 14 until the limiting block 21 fits with the inner wall of the limiting groove. Then, the first magnetic block 22 and the second magnetic block are adsorbed and positioned to seal the first pull ring 16 in the groove to prevent people from accidentally touching the first pull ring 16 after positioning is completed, causing the velvet sheet 6 to loosen.

[0027] The implementation principle of the injection molding mold with flexible inserts in the embodiment of the present application is as follows: temporarily place the velvet sheet 6 on the overlapping groove 5, then buckle the second pull ring and cooperate with the movable column 18 to move the retraction plate 8 toward the two ends of the velvet sheet 6. After the push plate 10 enters the push groove, it fits and squeezes the slope 13 on the spring block 11, forcing the spring block 11 to squeeze the spring 12 to retract, and the push plate 10 gradually enters the push groove. After it is completely entered, the spring 12 drives the spring block 11 to pop out and abut against the protruding end of the push plate 10. At this time, the groove 9 of the retraction plate 8 is engaged with the outer wall of the velvet sheet 6 to complete the positioning and installation. If it is necessary to adjust the placement position again, the first pull ring 16 can be buckled to drive the pressure rod 15 to move inside the extrusion groove. The spring block 11 is driven to squeeze the spring 12 to retract, and then the first pull ring 16 is deflected and hung on the positioning hook 17, and then the second pull ring is pulled to cooperate with the movable column 18 to drive the retraction plate 8 and the abutment plate 10 to move, so that the groove 9 is away from the two ends of the velvet piece 6, leaving enough space for personnel to adjust the position of the velvet piece 6, and the annular plate 20 that is buckled on the inner side of the buckle groove can drive the closing plate 19 to cooperate with the limit block 21 along the direction of the limit groove and move toward the inside of the pulling groove 14 until the limit block 21 fits with the inner wall of the limit groove. Then the first magnetic block 22 and the second magnetic block are adsorbed and positioned to close the first pull ring 16 in the groove to prevent people from accidentally touching the first pull ring 16 after positioning is completed, causing the velvet piece 6 to loosen.

[0028] 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. An injection mold with a flexible insert, comprising a lower mold (1) and an upper mold (2), characterized in that: A molding cavity is provided between the mating surfaces of the lower mold (1) and the upper mold (2), and the molding cavity comprises an upper molding groove (3) provided on the bottom surface of the upper mold (2) and a lower molding groove (4) provided on the top surface of the lower mold (1). A lap groove (5) is provided on the inner side of the lower molding groove (4), and a velvet sheet (6) is connected to the inner side of the lap groove (5) by means of a positioning mechanism. The positioning mechanism comprises a locking assembly and a pumping assembly. The locking assembly is used to quickly lock the velvet sheet (6) in a lapped position, and the pumping assembly is used to unlock the velvet sheet (6) to adjust the appropriate lapped position.

2. The injection mold with a flexible insert according to claim 1, characterized in that: The locking assembly comprises a retraction groove (7) provided inside the lower die (1) and located on both sides of the overlapping groove (5); the inner side of the retraction groove (7) is connected to the overlapping groove (5) and the inner side of the lower molding groove (4); a retraction plate (8) is slidably connected to the inner side of the retraction groove (7); the opposite ends of the two groups of retraction plates (8) are provided with grooves (9) that are snap-fitted and connected to the outer wall of the velvet sheet (6); a resisting groove is provided inside the lower die (1) and located on one side of the retraction groove (7); a resisting plate (10) that is snap-fitted and connected to the resisting groove is installed on one side of the retraction plate (8); a springing groove is provided inside the lower die (1) and located on one side of the resisting groove; a springing block (11) is slidably connected to the inner side of the springing groove; a spring (12) is installed between one side of the springing block (11) and the inner wall of the springing groove.

3. The injection mold with a flexible insert according to claim 2, characterized in that: The side cross-sections of the retractable plate (8), the abutment plate (10) and the elastic pressure block (11) are all L-shaped, and slopes (13) are provided at opposite ends of the abutment plate (10) and the elastic pressure block (11), and the two groups of slopes (13) are fitted to each other.

4. The injection mold with a flexible insert according to claim 3, characterized in that: The suction and pressing assembly comprises a pulling groove (14) opened on both sides of the outer wall of the lower mold (1), an extrusion groove extending to the inner side of the pulling groove (14) is opened on one side of the elastic pressure groove, a pressure rod (15) is installed on one side of the elastic pressure block (11), the pressure rod (15) is slidably connected to the extrusion groove, one end of the pressure rod (15) extending to the inner side of the pulling groove (14) is rotatably connected to a first pull ring (16), and a positioning hook (17) is installed on the inner wall of the pulling groove (14).

5. The injection mold with a flexible insert according to claim 4, characterized in that: A movable groove is provided inside the lower die (1) on one side of the retraction groove (7), a movable column (18) is slidably connected to the inside of the movable groove, one end of the movable column (18) is fixedly connected to one side of the retraction plate (8), and a second pull ring is installed at the other end of the movable column (18).

6. The injection mold with a flexible insert according to claim 5, characterized in that: The outer wall of the lower mold (1) is provided with a closed groove on one side of the pull groove (14), the inner side of the closed groove is connected to the inner side of the pull groove (14), the inner side of the closed groove is slidably connected with a closed plate (19), one side of the closed plate (19) is provided with a buckle groove, and the inner side of the buckle groove is installed with an annular plate (20).

7. The injection mold with a flexible insert according to claim 6, characterized in that: Limiting grooves extending to the inner wall of the pulling groove (14) are provided on both sides of the inner wall of the closing groove, and limiting blocks (21) slidably connected to the limiting grooves are installed at both ends of the closing plate (19), and first magnetic blocks (22) are embedded and installed at both ends of the limiting blocks (21), and second magnetic blocks adsorbed to the first magnetic block (22) are embedded and installed on both sides of the inner wall of the limiting groove.

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