Quick insert replacement mechanism of injection mold

Abstract

The quick insert replacement mechanism comprises an injection molding module and an insert mounted on the injection molding module, and the injection molding module is provided with an arrangement groove for arranging the insert; the quick insert replacement mechanism of the injection mold further comprises a sliding rack detachably mounted at the bottom of the insert, a hand wheel connecting rod rotationally mounted on the injection mold module and a driving gear mounted on the hand wheel connecting rod and matched with the sliding rack. The injection molding module is provided with a sliding channel used for allowing the sliding rack to ascend and descend and communicating with the bottom face of the arrangement groove. The injection molding module is provided with a rotating hole for rotationally arranging the hand wheel connecting rod; and the end part of the hand wheel connecting rod extends to the outer side of the rotating hole. According to the injection mold, the situation that when injection molding products of the same series are produced and the inserts need to be replaced due to local differences of the products, the replacement steps of the inserts are complex is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molds, in particular to a quick replacement insert mechanism of an injection mold. BACKGROUND

[0002] The injection mold is a necessary production device in the injection molding process, which is used for injecting and forming a specific injection product from molten plastic material. When producing injection products of the same series, the overall product may be similar but the local part may be different, and in the field, the local difference is usually made into an interchangeable insert form.

[0003] In the related art, the installation mode of the insert is usually to make the root of the insert into a stepped structure, and to set an installation hole form for cooperating with the insert in the core, and then to press the insert on the mold base through the core. The installation mode of the above-mentioned insert in the injection mold makes it necessary for the operator to disassemble the mold plate on which the insert is installed from the injection molding machine when the insert needs to be replaced after injection molding, and to complete the disassembly and assembly of the insert and the core, and then to install the insert to be replaced on the corresponding mold plate.

[0004] For the related art in the above, the inventors believe that the replacement steps of the above-mentioned insert are relatively complicated. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the replacement steps of the insert which are relatively complicated when the insert needs to be replaced due to the local difference of the product when producing injection products of the same series, the application provides a quick replacement insert mechanism of an injection mold.

[0006] The application provides a quick replacement insert mechanism of an injection mold, which adopts the following technical scheme:

[0007] A quick replacement insert mechanism of an injection mold, comprising an injection mold module and an insert installed on the injection mold module, the injection mold module having a placement groove for arranging the insert; the quick replacement insert mechanism of the injection mold further comprises a sliding rack detachably installed at the bottom of the insert, a rotating hand wheel connecting rod rotatably installed on the injection mold module, and a driving gear installed on the hand wheel connecting rod and cooperating with the sliding rack; the injection mold module has a sliding channel for lifting the sliding rack and communicating with the bottom surface of the placement groove; the injection mold module has a rotating hole for rotating arrangement of the hand wheel connecting rod; and the end of the hand wheel connecting rod extends to the outside of the rotating hole.

[0008] By adopting the technical scheme, the operator can rotate the hand wheel connecting rod to drive the driving gear to rotate synchronously, and then the driving gear drives the sliding rack to move upward and push out the insert arranged in the recess, the operator replaces the insert through the detachable structure of the insert and the sliding rack, the insert is quickly detached and maintained, and the production efficiency of the injection mold is improved.

[0009] Optionally, the injection mold further comprises a locking clamp installed on the injection mold, the locking clamp has a through hole for the hand wheel connecting rod to pass through, the locking clamp is further provided with a deformation gap communicating with the through hole and the outer wall of the locking clamp, and the locking clamp is provided with a locking bolt for adjusting the width of the deformation gap.

[0010] By adopting the technical scheme, the specific structure of the locking clamp is disclosed. The operator can rotate the locking bolt to narrow the deformation gap in the locking clamp, and then the through hole of the locking clamp is narrowed along with the deformation gap, so that the hand wheel connecting rod is locked, and the probability of accidental rotation of the hand wheel connecting rod during normal injection is reduced.

[0011] Optionally, an end of the locking bolt is provided with a locking handle.

[0012] By adopting the technical scheme, the locking handle is arranged at the end of the locking bolt, so that the operator can rotate the locking bolt conveniently.

[0013] Optionally, the injection mold is provided with a support structure for rotating and supporting the hand wheel connecting rod, the support structure comprises a rotating support for supporting the inner end of the hand wheel connecting rod and a guide shaft seat for supporting the outer end of the hand wheel connecting rod, the rotating support has a first through hole for arranging the inner end of the hand wheel connecting rod, and the guide shaft seat has a second through hole for arranging the outer end of the hand wheel connecting rod.

[0014] By adopting the technical scheme, the rotating support and the guide shaft seat are arranged at the inner end and the outer end of the hand wheel connecting rod to provide support force for the hand wheel connecting rod, so that the rotation of the hand wheel connecting rod is more stable.

[0015] Optionally, the injection mold comprises an injection mold base and an injection core installed on the injection mold base, the injection mold base has a core groove for arranging the injection core, the rotating support is installed on the bottom surface of the injection core, and the injection mold base and the bottom surface of the core groove are provided with a support arrangement groove for arranging the rotating support.

[0016] By adopting the technical scheme, the rotating support is arranged on the bottom surface of the injection mold core, can be arranged in the support arrangement groove of the injection mold base, and is locked in the support arrangement groove through the hand wheel connecting rod, so that the injection mold core and the injection mold base are locked, and the probability of disengagement or movement of the injection mold core from the injection mold base is reduced.

[0017] Optionally, the inner end of the hand wheel connecting rod is provided with a gear mounting portion for mounting the driving gear; the driving gear is provided with a gear through hole matched with the gear mounting portion, and a locking hole communicated with the gear through hole is formed in the outer side wall of the driving gear and is provided with a locking nut at the locking hole.

[0018] By adopting the technical scheme, the mounting structure of the driving gear on the hand wheel connecting rod is disclosed, so that the mounting structure strength of the driving gear on the gear mounting portion of the hand wheel connecting rod is ideal, and the probability of falling off of the driving gear from the gear mounting portion is low.

[0019] Optionally, the sliding rack is a cylindrical rack, and the sliding channel is a cylindrical hole matched with the sliding rack.

[0020] By adopting the technical scheme, the sliding rack is set as a cylindrical rack, and the sliding channel is set as a cylindrical hole matched with the sliding rack, so that the sliding of the sliding rack on the sliding channel is more stable.

[0021] Optionally, the bottom of the insert is provided with a mounting hole for inserting the sliding rack, the insert is further provided with a pin shaft hole penetrating through the opposite two side surfaces thereof and communicated with the mounting hole and is provided with a locking pin shaft mounted at the pin shaft hole, and the top of the sliding rack is provided with a locking pin hole matched with the locking pin shaft.

[0022] By adopting the technical scheme, the detachable connection structure between the insert and the sliding rack is disclosed. The sliding rack is first inserted into the mounting hole of the insert, and then the locking of the insert and the sliding rack is realized by penetrating the locking pin hole in the top of the sliding rack and the pin shaft hole of the insert through the locking pin shaft, which is helpful for the installation and dismounting of the insert on the sliding rack.

[0023] Optionally, the outer end of the hand wheel connecting rod is provided with a driving hand wheel.

[0024] By adopting the technical scheme, the driving hand wheel is mounted on the outer end of the hand wheel connecting rod, which is convenient for the operator to rotate the hand wheel connecting rod.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. A quick replacement insert mechanism of an injection mold, by setting a sliding rack, a driving rack and a hand wheel connecting rod, so that the operator needs to rotate the hand wheel connecting rod when replacing the insert, so that the driving gear rotates synchronously with the hand wheel connecting rod, and then the driving gear drives the sliding rack to move upward and push out the insert arranged in the recess groove, thereby facilitating the quick replacement of the insert by the operator, thereby improving the situation that the replacement step of the insert is relatively complicated and reduces the production efficiency of the injection mold;

[0027] 2. By setting a mounting hole and a pin hole in the insert, and setting a locking pin hole at the top of the sliding rack, after the upper end of the sliding rack is inserted into the mounting hole, the locking pin shaft locks the insert and the sliding rack, so that after the sliding rack pushes out the insert from the arrangement recess, the operator can replace the insert by pulling out the locking pin shaft, which helps to reduce the difficulty of disassembling the insert;

[0028] 3. By setting a deformation gap in the locking clamp block, after rotating the locking bolt, the through hole of the locking clamp block becomes narrow with the deformation gap, thereby locking the hand wheel connecting rod, so that during normal injection molding, the probability of accidental rotation of the hand wheel connecting rod is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure diagram of a quick replacement insert mechanism of an injection mold in the embodiment of the application.

[0030] Figure 2 is a main structure diagram of a quick replacement insert mechanism of an injection mold in the embodiment of the application.

[0031] Figure 3 is a partial cross-sectional view of a quick replacement insert mechanism of an injection mold in the embodiment of the application.

[0032] Figure 4 is a cross-sectional view of the cooperation of the hand wheel connecting rod and the driving gear in the embodiment of the application.

[0033] Figure 5 is Figure 4 is a partial enlarged view of A in FIG.

[0034] Figure 6 is an exploded structure diagram of the locking structure.

[0035] Figure 7 is a structure diagram of the locking clamp block and the locking bolt.

[0036] Explanation of reference signs: 1, injection molding module; 11, mounting die holder; 111, core groove; 112, shaft seat stepped hole; 113, mounting cross bar; 12, injection molding core; 121, arrangement groove; 13, sliding channel; 14, rotating hole; 151, rotating support; 1511, first through hole; 152, guide shaft seat; 1521, second through hole; 16, support arrangement groove; 17, locking mechanism; 171, locking clamp block; 1711, through hole; 1712, deformation gap; 1713, upper clamp part; 1714, lower clamp part; 172, locking bolt; 173, locking handle; 2, insert; 21, mounting hole; 22, pin shaft hole; 23, locking pin shaft; 3, sliding rack; 31, locking pin hole; 4, hand wheel connecting rod; 41, gear mounting part; 42, driving hand wheel; 421, mounting tube; 422, hand wheel bolt; 43, mounting section; 5, driving gear; 51, gear through hole; 52, locking hole; 521, locking nut. DETAILED DESCRIPTION

[0037] The following will be described in detail with reference to the accompanying drawings. Figures 1-7 The application is further described in detail.

[0038] The application discloses a quick replacement insert mechanism of an injection molding mold. Referring to Figure 1 and Figure 2 , the quick replacement insert mechanism of the injection molding mold comprises an injection molding module 1, an insert 2 mounted on the injection molding module 1, a sliding rack 3 detachably mounted on the bottom of the insert 2, a hand wheel connecting rod 4 rotatably mounted on the injection molding module 1, and a driving gear 5 mounted on the hand wheel connecting rod 4 and used for cooperating with the sliding rack 3.

[0039] Referring to Figure 3 and Figure 4 , the injection molding module 1 comprises a mounting die holder 11 and an injection molding core 12 mounted on the mounting die holder 11. The top surface of the mounting die holder 11 has a core groove 111 for arranging the injection molding core 12. The top surface of the injection molding core 12 has an arrangement groove 121 for arranging the insert 2.

[0040] Referring to Figure 3 , the injection molding module 1 has a sliding channel 13 for lifting the sliding rack 3 and communicating with the bottom surface of the arrangement groove 121. The sliding channel 13 penetrates the upper and lower surfaces of the injection molding module 1, so that part of the sliding channel 13 is located in the injection molding core 12 and the other part is located in the mounting die holder 11. In this embodiment, the sliding rack 3 is provided as a cylindrical rack, and the sliding channel 13 is provided as a cylindrical hole matched with the sliding rack 3.

[0041] Referring to Figure 4 and Figure 5, the injection molding module 1 has a rotating hole 14 for the hand wheel connecting rod 4 to be arranged for rotation, and the injection molding module 1 is further provided with a support structure for rotationally supporting the hand wheel connecting rod 4. The support structure comprises a rotating support 151 for supporting the inner end of the hand wheel connecting rod 4 and a guide shaft seat 152 for supporting the outer end of the hand wheel connecting rod 4. The rotating support 151 has the guide shaft seat 152 for the inner end of the hand wheel connecting rod 4 to be arranged. The guide shaft seat 152 has a second through hole 1521 for the outer end of the hand wheel connecting rod 4 to be arranged. In this embodiment, the rotating support 151 is bolted to the bottom surface of the injection molding core 12, and the mounting mold base 11 has a support arrangement groove 16 for the rotating support 151 to be arranged.

[0042] With reference to Figure 4 and Figure 5 , the mounting mold base 11 is provided with a shaft seat stepped hole 112 for the guide shaft seat 152 to be arranged. The guide shaft seat 152 is bolted to the shaft seat stepped hole 112 of the mounting mold base 11. In order to further lock the guide shaft seat 152, the outer wall of the mounting mold base 11 is provided with a mounting cross bar 113 for locking the guide shaft seat 152 at the shaft seat stepped hole 112.

[0043] With reference to Figure 5 , the inner end of the hand wheel connecting rod 4 has a gear mounting portion 41 for the driving gear 5 to be mounted. The driving gear 5 has a gear through hole 51 matched with the gear mounting portion 41. The outer side wall of the driving gear 5 is provided with a locking hole 52 communicated with the gear through hole 51 and a locking nut 521 at the locking hole 52. The outer end surface of the locking nut 521 is provided with an internal hexagonal groove, and the operator can rotate the locking nut 521 through an internal hexagonal wrench, so as to facilitate the disassembly and assembly of the driving gear 5 on the hand wheel connecting rod 4.

[0044] With reference to Figure 4 and Figure 6 , in order to facilitate the rotation of the hand wheel connecting rod 4, a driving hand wheel 42 is mounted at the outer end of the hand wheel connecting rod 4. The outer end of the hand wheel connecting rod 4 is provided with a mounting section 43 matched with the driving hand wheel 42, and a driving cut surface is arranged at the mounting section 43. The driving hand wheel 42 has a mounting tube 421 for being sleeved outside the mounting section 43 of the hand wheel connecting rod 4, and a hand wheel bolt 422 abutting against the driving cut surface is threadedly mounted at the mounting tube 421.

[0045] With reference to Figure 6 and Figure 7, in order to realize the hand wheel connecting rod 4 is not prone to accidental rotation in the injection molding process, the injection molding module 1 is also provided with locking mechanism 17. Locking mechanism 17 includes locking clamp block 171 installed on the installation crossbar 113 and locking bolt 172 installed at locking clamp block 171. Locking clamp block 171 has a through hole 1711 for the hand wheel connecting rod 4, and a deformation gap 1712 that communicates with the through hole 1711 and the outer wall of the locking clamp block 171. Among them, the deformation gap 1712 and the through hole 1711 make the locking clamp block 171 have an upper clamp part 1713 and a lower clamp part 1714. Among them, the upper clamp part 1713 has a threaded hole for the threaded installation of the locking bolt 172, and the lower clamp part 1714 has a through hole corresponding to the threaded hole for the arrangement of the locking bolt 172, so that the hand wheel connecting rod 4 can be locked by rotating the locking bolt 172.

[0046] Referring to Figure 7 , in order to facilitate the rotation of the locking bolt 172, the end of the locking bolt 172 is also provided with a locking handle 173.

[0047] Referring to Figure 3 , the bottom of the insert 2 has an installation hole 21 for inserting the sliding rack 3. The insert 2 is also provided with a pin shaft hole 22 that penetrates through the opposite two side surfaces and communicates with the installation hole 21, and a locking pin shaft 23 is installed at the pin shaft hole 22; the top of the sliding rack 3 has a locking pin hole 31 for cooperating with the locking pin shaft 23. By using the above connection structure, the insert 2 and the sliding rack 3 can be detachably matched by pulling out the locking pin shaft 23.

[0048] In combination Figures 1 to 7 , the implementation principle of the quick replacement insert mechanism of the injection mold according to the embodiment of the application is: in the initial state, the insert 2 is arranged in the arrangement groove 121 of the injection core 12, and the locking clamp block 171 locks the hand wheel connecting rod 4 to limit its rotation; when it is necessary to replace the above-mentioned insert 2, the operator rotates the hand wheel connecting rod 4, so that the driving gear 5 rotates synchronously with the hand wheel connecting rod 4, and then the driving gear 5 drives the sliding rack 3 to move upward and push out the insert 2 in the arrangement groove 121, the operator pulls out the locking pin shaft 23 installed on the insert 2 and the sliding rack 3, and then pulls out the insert 2 from the top of the sliding rack 3.

[0049] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A mechanism for quick change of insert of an injection mold, comprising an injection mold block (1) and an insert (2) mounted to the injection mold block (1), the injection mold block (1) having an arrangement groove (121) for the arrangement of the insert (2); characterized in that, The quick-change insert mechanism of the injection mold further comprises a sliding rack (3) detachably installed at the bottom of the insert (2), a handwheel connecting rod (4) rotatably installed at the injection mold module (1), and a driving gear (5) installed at the handwheel connecting rod (4) and matched with the sliding rack (3); the injection mold module (1) has a sliding channel (13) for lifting the sliding rack (3) and communicating with the bottom surface of the arrangement groove (121); the injection mold module (1) has a rotating hole (14) for rotating arrangement of the handwheel connecting rod (4); and the end of the handwheel connecting rod (4) extends to the outside of the rotating hole (14).

2. A quick change insert mechanism for an injection mold according to claim 1, wherein, Further comprising a locking clamp block (171) installed at the injection mold module (1); the locking clamp block (171) has a through hole (1711) for passing the handwheel connecting rod (4); the locking clamp block (171) is further provided with a deformation gap (1712) communicating with the through hole (1711) and the outer wall of the locking clamp block (171); and the locking clamp block (171) is installed with a locking bolt (172) for adjusting the width of the deformation gap (1712).

3. A quick change insert mechanism for an injection mold according to claim 2, wherein, The end of the locking bolt (172) is provided with a locking handle (173).

4. The quick change insert mechanism for injection molds of claim 1, wherein, The injection mold module (1) is provided with a support structure for rotatingly supporting the handwheel connecting rod (4); the support structure comprises a rotating support (151) for supporting the inner end of the handwheel connecting rod (4) and a guide shaft seat (152) for supporting the outer end of the handwheel connecting rod (4); the rotating support (151) has a first through hole (1511) for arrangement of the inner end of the handwheel connecting rod (4); and the guide shaft seat (152) has a second through hole (1521) for arrangement of the outer end of the handwheel connecting rod (4).

5. A quick change insert mechanism for an injection mold as defined in claim 4, wherein, The injection mold module (1) comprises an injection mold base and an injection mold core (12) installed at the injection mold base; the injection mold base has a core groove (111) for arrangement of the injection mold core (12); the rotating support (151) is installed at the bottom surface of the injection mold core (12), and the injection mold base and the bottom surface of the core groove (111) are provided with a support arrangement groove (16) for arrangement of the rotating support (151).

6. The quick-change insert mechanism of claim 1, wherein, The inner end of the handwheel connecting rod (4) has a gear mounting portion (41) for mounting the driving gear (5); the driving gear (5) has a gear through hole (51) matched with the gear mounting portion (41), and the outer wall of the driving gear (5) is provided with a locking hole (52) communicating with the gear through hole (51) and a locking nut (521) at the locking hole (52).

7. The quick change insert mechanism for injection molds of claim 1, wherein, The sliding rack (3) is a cylindrical rack, and the sliding channel (13) is a cylindrical hole matched with the sliding rack (3).

8. The quick change insert mechanism for injection molds of claim 1, wherein, The bottom of the insert (2) has a mounting hole (21) for inserting the sliding rack (3), the insert (2) is further provided with pin shaft holes (22) penetrating through opposite two side faces and communicating with the mounting hole (21), and locking pin shafts (23) are installed at the pin shaft holes (22); the top of the sliding rack (3) has locking pin holes (31) for cooperating with the locking pin shafts (23).

9. The quick change insert mechanism for injection molds of claim 1, wherein, The outer end of the hand wheel connecting rod (4) is installed with a driving hand wheel (42).

10. The quick change insert mechanism for injection molds of claim 1, wherein, The insert (2) is rectangular, and the arrangement groove (121) is arranged as a rectangular groove matched with the insert (2).

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