Mold assembly with insert convenient to replace

Abstract

The utility model relates to the technical field of molds, in particular to a mold assembly with an insert convenient to replace. The mold assembly comprises a mold core body and the insert, the mold core body is provided with a mounting hole, the insert is embedded in the mounting hole, the side wall of the insert is provided with a fixing hole, the axis of the fixing hole is perpendicular to the axis of the mounting hole, the mold core body is provided with a connecting hole, and the connecting hole communicates with the mounting hole. The connecting holes are used for being connected into the fixing holes in a threaded mode after bolts are embedded. The mold core body is provided with the mounting hole, the mounting hole is used for allowing the insert to be embedded, the mounting hole plays a guiding role in mounting of the insert, embedding of the insert can be conveniently achieved, after the insert is mounted in place, a bolt penetrates through the connecting hole and then is in threaded connection with the fixing hole, the insert and the mold core body are fixedly connected, mounting of the insert is achieved, and the replacement steps of the insert are simplified; the replacement efficiency of the insert is improved, the downtime of the injection molding machine is reduced, and the production efficiency of the injection molding machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and in particular to a mold assembly with easily replaceable inserts. Background Art

[0002] Inserts, also known as inserts or inserts, are accessories that are embedded in molds. Currently, mold inserts are generally used to save mold manufacturing materials, facilitate mold changes, facilitate mold exhaust, and extend mold life.

[0003] To save costs, existing industrial production often reuses the interior of a mold frame multiple times to produce similar products. Simply replacing the internal inserts is sufficient. Existing insert replacement systems require disassembling the insert mounting assembly, removing the original insert, replacing it with the new one, and then reassembling the mounting assembly. Currently, replacing injection molding inserts is often complex and time-consuming, impacting production efficiency. Utility Model Content

[0004] In order to simplify the replacement steps of the inserts and improve the replacement efficiency of the inserts, the present application provides a mold assembly with easy replacement of the inserts.

[0005] The present application provides a mold assembly with easily replaceable inserts, which adopts the following technical solution:

[0006] A mold assembly with easily replaceable inserts comprises a core body and an insert, wherein the core body is provided with a mounting hole, the insert is embedded in the mounting hole, the side wall of the insert is provided with a fixing hole, the axis of the fixing hole is perpendicular to the axis of the mounting hole, the core body is provided with a connecting hole, the connecting hole is communicated with the mounting hole, and the connecting hole is used for a bolt to be embedded and then threadedly connected to the fixing hole.

[0007] By adopting the above technical solution, the core body is provided with a mounting hole, which is used for embedding the insert. The mounting hole guides the installation of the insert, making it easy to embed the insert. After the insert is installed in place, the bolt passes through the connecting hole and is threadedly connected to the fixing hole to achieve a fixed connection between the insert and the core body, thereby realizing the installation of the insert, simplifying the insert replacement steps, improving the insert replacement efficiency, reducing the downtime of the injection molding machine, and improving the production efficiency of the injection molding machine.

[0008] Preferably, it also includes an upper mold base and a lower mold base, the core body includes an upper core block, a lower core block, a left core block and a right core block, the upper core block is connected to the upper mold base, the lower core block is connected to the lower mold base, the left core block and the right core block are slidably connected to the lower core block, the sliding direction of the left core block is parallel to the width direction of the lower core block, the sliding direction of the right core block is parallel to the sliding direction of the left core block, the upper core block, the lower core block, the left core block, the right core block and the insert are combined to form a mold cavity, and the molding cavity is used to mold products.

[0009] By adopting the above technical solution, the core body is composed of an upper core block, a lower core block, a left core block and a right core block, which makes it easy to replace the upper core block, the lower core block, the left core block or the right core block separately, thereby reducing production costs.

[0010] Preferably, it also includes a guide rod, one end of which is connected to the upper mold base, and the axial direction of the guide rod is inclined to the sliding direction of the left core block or the right core block. The core body also includes a left connecting block and a right connecting block, the left connecting block is connected to the side of the left core block away from the right core block, the left connecting block is provided with a left guide hole, the axis of the left guide hole is parallel to the axis of the corresponding guide rod, and the guide rod is coaxially slidably embedded in the left guide hole, the right connecting block is connected to the side of the right core block away from the left core block, the right connecting block is provided with a right guide hole, the axis of the right guide hole is parallel to the axis of the corresponding guide rod, and the guide rod is coaxially slidably embedded in the right guide hole.

[0011] By adopting the above technical solution, when the upper mold base and the lower mold base are separated, the guide rods are slidably embedded in the left guide hole and the right guide hole respectively, so that the left connecting hole and the right connecting hole are separated from each other, and the left core block and the right core block are separated from each other, which is convenient for taking out the product formed in the molding cavity. When the upper mold base and the lower mold base are closed, the guide rods are embedded in the left guide hole and the right guide hole, pushing the left connecting block and the right connecting block closer to each other, so that the upper core block, the lower core block, the left core block, the right core block and the insert are surrounded to form a cavity.

[0012] Preferably, there are a plurality of the molding cavities, and the molding cavities are spaced apart along the length direction of the lower core block.

[0013] By adopting the above technical solution, the core body is provided with a plurality of molding cavities, which can simultaneously mold multiple products and improve the production efficiency of the injection molding machine.

[0014] Preferably, there are a plurality of core bodies, and the core bodies are evenly distributed on the lower mold base.

[0015] By adopting the above technical solution, multiple core bodies are provided in one mold, thereby increasing the number of molding cavities, facilitating the molding of multiple products at the same time, and improving the production efficiency of the injection molding machine.

[0016] Preferably, a positioning groove is provided on a side of the lower core block close to the upper core block, and a positioning block is connected to a side of the upper core block close to the lower core block, and the positioning block is embedded in the positioning groove.

[0017] By adopting the above technical solution, the positioning groove and the positioning block cooperate with each other, which facilitates the cooperation of the molding cavity at the upper core block with the molding cavities at the left core block and the right core block, thereby improving the production molding accuracy and the production efficiency of the injection molding machine.

[0018] Preferably, there are two positioning grooves, which are spaced apart along the length direction of the lower core block, and the number of the positioning blocks is the same as the number of the positioning grooves and corresponds one to one.

[0019] By adopting the above technical solution, a lower core block is provided with two positioning grooves, which improves the stability of the connection between the upper core block and the lower core block, reduces the stress concentration at the abutment between the positioning block and the positioning groove, reduces the possibility of damage to the positioning block and the positioning groove, and improves the service life of the core body.

[0020] Preferably, a first chamfer is provided on the wall of the positioning groove close to the upper core block, and a second chamfer is provided on the outer periphery of the positioning block close to one end of the lower core block, and the second chamfer is used to abut against the first chamfer.

[0021] By adopting the above technical solution, a first chamfer and a second chamfer are set, which reduces the possibility of damage to the positioning block and the positioning groove due to collision when the upper core block and the lower core block abut, thereby improving the service life of the core body. The second chamfer abuts against the first chamfer, guiding the positioning block to be embedded in the positioning groove, thereby improving the accuracy of the connection between the upper core block and the lower core block.

[0022] Preferably, the core body further comprises a limit assembly, wherein two limit assemblies are provided, and the two limit assemblies correspond to the left core block and the right core block respectively, and the limit assembly comprises a limit block, a first reset member and an adjustment block, and the number of the limit blocks and the first reset member is the same as the number of the inserts and corresponds one to one, a first slide groove is provided on the wall of the mounting hole, the limit block is slidably embedded in the first slide groove, and the sliding direction of the limit block is perpendicular to the axial direction of the mounting hole, the side wall of the insert is provided with a limit groove, and the limit groove is used for the limit block to be embedded, and the limit block is provided with a third chamfer at one end close to the mounting hole, and the third chamfer is located far from the limit block On the side away from the molding cavity, the third chamfer is used for abutting one end of the insert close to the molding cavity, the first reset member is connected to the limit block and the lower core block, the first reset member makes the limit block have a tendency to extend into the mounting hole, the left core block or the right core block is provided with a second slide groove, the second slide groove is connected to the first slide groove, the adjustment block is slidably embedded in the second slide groove, the sliding direction of the adjustment block is perpendicular to the sliding direction of the limit block, the side wall of the limit block is provided with a groove, the end of the adjustment block close to the limit block is provided with a fourth chamfer, the fourth chamfer is located on the side of the adjustment block away from the mounting hole, and the fourth chamfer is used to abut the groove wall.

[0023] By adopting the above technical solution, when the insert is embedded in the mounting hole, the insert abuts the third chamfer, so that the limit block overcomes the elastic force of the first reset member and is embedded in the first slide groove. When the limit groove is aligned with the first slide groove, the limit block is embedded in the limit groove under the action of the elastic force of the first reset member, thereby realizing the initial fixation of the insert and the left core block or the right core block, so that the fixing hole and the connecting hole correspond to each other, which is convenient for the subsequent bolt to pass through the connecting ring and be threaded into the fixing hole, thereby improving the convenience of replacing the insert. When the insert needs to be removed, the bolt is loosened and the adjusting block is pushed so that the fourth chamfer abuts the bottom of the groove, so that the limit block overcomes the elastic force of the first reset member and disengages from the limit groove, thereby realizing the locking release of the insert and the left core block or the right core block, so as to facilitate the removal of the insert.

[0024] Preferably, the adjusting member includes an abutment portion, a connecting portion and a pushing portion, the number of the abutment portions is the same as the number of the limit blocks and corresponds one to one, the fourth chamfer is located at one end of the abutment portion close to the limit block, the two ends of the connecting portion are respectively connected to the ends of the two abutment portions away from the limit blocks, the pushing portion is connected to the connecting portion, and the end of the pushing portion away from the connecting portion extends out of the second sliding groove.

[0025] By adopting the above technical solution, the number of abutment parts is the same as the number of limit blocks and corresponds one to one, so the inserts on the same left core block or right core block can be replaced at the same time, thereby improving the replacement efficiency of the inserts.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The core body is provided with a mounting hole for inserts to be embedded. The mounting hole serves as a guide for the installation of the insert, facilitating the embedding of the insert. After the insert is installed in place, the bolt passes through the connection hole and is threadedly connected to the fixing hole to achieve a fixed connection between the insert and the core body, thus completing the installation of the insert. This simplifies the replacement steps of the insert, improves the replacement efficiency of the insert, reduces the downtime of the injection molding machine, and improves the production efficiency of the injection molding machine.

[0028] 2. The core body consists of an upper core block, a lower core block, a left core block and a right core block, which makes it easy to replace the upper core block, the lower core block, the left core block or the right core block separately, thus reducing production costs;

[0029] 3. When the insert is embedded in the mounting hole, the insert abuts the third chamfer, so that the limit block overcomes the elastic force of the first reset member and is embedded in the first slide groove. When the limit groove is aligned with the first slide groove, the limit block is embedded in the limit groove under the action of the elastic force of the first reset member, thereby realizing the initial fixation of the insert and the left core block or the right core block, so that the fixing hole and the connecting hole correspond to each other, which is convenient for the subsequent bolts to pass through the connecting ring and be threaded into the fixing hole, thereby improving the convenience of insert replacement. When the insert needs to be removed, loosen the bolts and push the adjusting block so that the fourth chamfer abuts the bottom of the groove, so that the limit block overcomes the elastic force of the first reset member and disengages from the limit groove, thereby realizing the lock release of the insert and the left core block or the right core block, so as to facilitate the removal of the insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view of the upper die seat and the upper core block 6.

[0031] Figure 2 This is a cross-sectional view of a mold assembly with easily replaceable inserts.

[0032] Figure 3 It is a schematic diagram of the structure of a mold assembly with easy replacement of inserts.

[0033] Figure 4 It is a cross-sectional view of the lower mold assembly and the core body.

[0034] Figure 5 It is a structural diagram of the lower mold assembly and the core body.

[0035] Figure 6 It is a cross-sectional view of the lower mold assembly and the core body.

[0036] Figure 7 It is a structural diagram of the upper die base, upper core block and guide rod.

[0037] Figure 8 It is a cross-sectional view of the lower mold assembly and the lower core block.

[0038] Figure 9 It is a cross-sectional view of the core body.

[0039] Figure 10 It is a cross-sectional view of the core body, mainly showing the connection holes and fixing holes.

[0040] Figure 11 It is a cross-sectional view of the core body, mainly showing the adjustment block.

[0041] Description of reference numerals:

[0042] 1. Core body; 11. Mounting hole; 12. Connecting hole; 13. Upper core block; 131. Positioning block; 132. Second chamfer; 14. Lower core block; 141. Positioning groove; 142. First chamfer; 143. First connecting groove; 144. Second connecting groove; 15. Left core block; 16. Right core block; 17. Molding cavity; 18. Left connecting block; 181. Left guide hole; 182. Left guide strip; 19. Right connecting block; 191. Right guide Hole; 192, right guide bar; 110, limit assembly; 1101, limit block; 11011, third chamfer; 11012, groove; 1102, first reset member; 1103, adjustment block; 11031, abutment portion; 110311, fourth chamfer; 11032, connecting portion; 11033, pushing portion; 111, first chute; 112, second chute; 113, third connecting groove; 114, fourth connecting groove; 115, annular groove;

[0043] 2. Insert; 21. Fixing hole; 22. Limiting groove;

[0044] 3. Upper mold base; 31. Upper mounting groove; 32. Upper embedding groove; 33. Injection port;

[0045] 4. Lower die assembly; 41. Lower die base; 411. Lower mounting groove; 412. Lower embedding groove; 413. Ejector groove; 42. Base; 421. Accommodating groove; 422. Through hole; 43. Mounting plate; 44. Push plate; 45. Second reset member; 46. Limit seat; 461. Guide groove; 47. Ejector rod; 48. Ejector block;

[0046] 5. Guide rod. DETAILED DESCRIPTION

[0047] The present application is further described in detail below with reference to the accompanying drawings.

[0048] Reference Figure 1 The present application discloses a mold assembly with easily replaceable inserts, including an upper mold base 3. The upper mold base 3 has an upper mounting groove 31 on one side along its thickness direction, an upper beading groove 32 at its bottom, and an injection port 33 on the other side of the upper mold base 3. The injection port 33 communicates with the upper beading groove 32.

[0049] Reference Figure 1 and Figure 2A mold assembly with easily replaceable inserts also includes a core body 1. There are a plurality of core bodies 1, and the plurality of core bodies 1 are spaced apart along the length direction of the upper mold base 3. In this embodiment, there are two core bodies 1. Any core body 1 is provided with a plurality of molding cavities 17, and the plurality of molding cavities 17 are spaced apart along the length direction of the upper mold base 3, and the molding cavities 17 are used to mold products. In this embodiment, there are two molding cavities 17. The core body 1 includes an upper core block 13, and the upper core block 13 is embedded in the upper embedding groove 32. The adjacent two side surfaces of the two upper core blocks 13 are in contact with each other, and the side walls of the upper core block 13 are in contact with the groove walls of the upper embedding groove 32.

[0050] Reference Figure 2 and Figure 3 A mold assembly with easily replaceable inserts also includes a lower mold assembly 4, which includes a lower mold base 41, a base 42, a mounting plate 43, a push plate 44, and a second reset member 45. The lower mold base 41 and the upper mold base 3 are clamped together along the thickness direction of the lower mold base 41. The base 42 is fixedly connected to the side of the lower mold base 41 away from the upper mold base 3. The side of the base 42 close to the lower mold base 41 is provided with a receiving groove 421. The mounting plate 43 is slidably embedded in the receiving groove 421. The sliding direction of the mounting plate 43 is parallel to the sliding direction of the lower mold base 41. The push plate 44 is fixedly connected to the side of the mounting plate 43 away from the lower mold base 41. The second reset member 45 is connected between the mounting plate 43 and the lower mold base 41. The second reset member 45 makes the push plate 44 tend to press against the bottom of the receiving groove 421. In this embodiment, the second return member 45 is a spring. One end of the second return member 45 is connected to the side of the mounting plate 43 away from the push plate 44, and the other end is connected to the side of the lower mold base 41 near the base 42. Four second return members 45 are provided, distributed at the four corners of the mounting plate 43. A through hole 422 is defined at the bottom of the accommodating groove 421. The through hole 422 is used for the piston rod of the drive cylinder to pass through and push the push plate 44 to slide.

[0051] Reference Figure 2 and Figure 4 The lower mold base 41 is provided with a lower mounting groove 411 on the side away from the base 42, and a lower embedding groove 412 is provided at the bottom of the lower mounting groove 411. The core body 1 also includes a lower core block 14, the number of which is the same as that of the upper core block 13 and corresponds one to one. The lower core block 14 is embedded in the lower embedding groove 412, and the adjacent two side surfaces of the lower core block 14 are in contact with each other, and the side walls of the lower core block 14 are in contact with the walls of the lower embedding groove 412. The lower core block 14 is provided with a positioning groove 141 on the side away from the bottom of the lower embedding groove 412. There are two positioning grooves 141, and the two positioning grooves 141 are symmetrically distributed along the length direction of the lower core block 14. The upper core block 13 is fixedly connected to a positioning block 131 on the side away from the bottom of the upper embedding groove 32. The number of positioning blocks 131 is the same as that of the positioning grooves 141 and corresponds one to one. The positioning block 131 is used to embed in the positioning groove 141.

[0052] Reference Figure 1 and Figure 4 A second chamfer 132 is provided on the outer periphery of the positioning block 131 away from the bottom of the upper embedding groove 32, and a first chamfer 142 is provided on the side of the positioning groove 141 away from the bottom of the lower embedding groove 412. The first chamfer 142 is used to abut against the second chamfer 132.

[0053] Reference Figure 5 The core body 1 further includes a left core block 15 and a right core block 16. The number of left core blocks 15 and right core blocks 16 is the same as the number of lower core blocks 14 and corresponds one-to-one. A first connecting groove 143 is provided on the side of the lower core block 14 away from the bottom of the lower embedding groove 412. The first connecting groove 143 extends through the lower core block 14 along the width of the lower mold base 41, and the bottom of the first connecting groove 143 is flush with the bottom of the lower mounting groove 411. The left core block 15 and the right core block 16 are both slidably embedded in the first connecting groove 143. The sliding direction of the left core block 15 is parallel to the width of the lower mold base 41, and the sliding direction of the right core block 16 is parallel to the sliding direction of the left core block 15.

[0054] Reference Figure 5 and Figure 6 The core body 1 also includes a left connecting block 18 and a right connecting block 19. The number of the left connecting blocks 18 is the same as the number of the left core blocks 15 and corresponds one to one. The left connecting block 18 is fixedly connected to the side of the left core block 15 away from the right core block 16. The left connecting block 18 is provided with a left guide hole 181. The distance from any point on the axis of the left guide hole 181 to the two side surfaces of the left connecting block 18 along the length direction of the lower mold base 41 is equal. The upper end of the axis of the left guide hole 181 is inclined toward the direction close to the right core block 16, and the left guide hole 181 passes through the left connecting block 18 along the axis of the left guide hole 181. The number of right connecting blocks 19 is the same as the number of right core blocks 16 and corresponds one to one. The right connecting block 19 is fixedly connected to the side of the right core block 16 away from the left core block 15. The right connecting block 19 is provided with a right guide hole 191. The distance from any point on the axis of the right guide hole 191 to the two side surfaces of the right connecting block 19 along the length direction of the lower mold base 41 is equal. The upper end of the axis of the right guide hole 191 is inclined toward the direction close to the left core block 15, and the right guide hole 191 passes through the right connecting block 19 along the axis of the right guide hole 191.

[0055] Reference Figure 6 and Figure 7A mold assembly with easy replacement of inserts also includes a guide rod 5, one end of which is fixedly connected to the bottom of the upper mounting groove 31. Four guide rods 5 are provided, and the four guide rods 5 are divided into two groups. The two groups of guides correspond to the left guide hole 181 and the right guide hole 191 respectively. The axis of the guide rod 5 is parallel to the axis of the left guide hole 181 or the right guide hole 191 respectively, and the guide rod 5 is coaxially slidably embedded in the left guide hole 181 or the right guide hole 191.

[0056] Reference Figure 5 The lower mold assembly 4 also includes a limit seat 46 fixedly connected to the lower mounting slot 411. There are a plurality of limit seats 46, each of which is divided into two groups. The two groups of limit seats 46 are symmetrically distributed along the width of the lower mold base 41, and the limit seats 46 in the same group are spaced apart along the length of the lower mold base 41. A guide groove 461 is defined on the side of the limit seat 46 near the left and right connecting blocks 18 and 19. The guide groove 461 extends in the sliding direction of the left and right connecting blocks 18 and 19. In this embodiment, there are six limit seats 46. The limit seats 46 on both sides of the same group have one guide groove 461, and the limit seat 46 in the middle has two guide grooves 461. A left guide bar 182 is fixedly connected to the side wall of the left connecting block 18, and the left guide bar 182 is slidably embedded in the guide groove 461. The sliding direction of the left guide bar 182 is parallel to the sliding direction of the left connecting block 18. A right guide bar 192 is fixedly connected to the side wall of the right connecting block 19, and the right guide bar 192 is slidably embedded in the guide groove 461. The sliding direction of the right guide bar 192 is parallel to the sliding direction of the right connecting seat.

[0057] Reference Figure 8 The first connecting groove 143 has a second connecting groove 144 at its bottom, with two second connecting grooves 144 corresponding to each molding cavity 17. The lower embedded groove 412 has an ejector groove 413 at its bottom, with the same number of ejector grooves 413 and a one-to-one correspondence with the second connecting grooves 144. The lower mold assembly 4 also includes a push rod 47 and an ejector block 48. One end of the push rod 47 is fixedly connected to the mounting plate 43. The other end of the push rod 47 sequentially ejects the groove 413 and the second connecting groove 144 and then extends into the first connecting groove 143. The sidewalls of the push rod 47 are in contact with the walls of the second connecting groove 144, and the length of the push rod 47 is inclined relative to the length of the lower mold base 41. The ejector block 48 is fixedly connected to the end of the push rod 47 away from the mounting plate 43.

[0058] Reference Figure 5 and Figure 9A mold assembly with easily replaceable inserts also includes an insert 2. The left and right core blocks 15, 16 are provided with mounting holes 11 extending through the left and right core blocks 15, 16, along the sliding direction of the left core block 15. The insert 2 is embedded in the mounting holes 11, with the sidewalls of the insert 2 abutting against the walls of the mounting holes 11. In this embodiment, the upper core block 13, the lower core block 14, the left core block 15, the right core block 16, the insert 2, and the ejector block 48 collectively form a molding cavity 17.

[0059] Reference Figure 10 The left and right core blocks 15 and 16 have connecting holes 12 at their upper ends. The connecting holes 12 communicate with the mounting holes 11. The number of connecting holes 12 is the same as the number of mounting holes 11 and they correspond one to one. The axis of the connecting holes 12 is parallel to the thickness direction of the lower die base 41. The side wall of the insert 2 has fixing holes 21. The connecting holes 12 are used for passing bolts through and then threadedly connected to the fixing holes 21.

[0060] Reference Figure 9 and Figure 11 A first chute 111 is provided in the wall of the mounting hole 11, extending parallel to the length of the lower core block 14. The core body 1 further comprises two position-limiting assemblies 110, one for each of the left and right core blocks 15 and 16. The position-limiting assemblies 110 include position-limiting blocks 1101 and first return members 1102. The number of position-limiting blocks 1101 and first return members 1102 is the same as the number of inserts 2, and they correspond one-to-one. The stopper 1101 slides and fits within the first chute 111, with the sliding direction of the stopper 1101 parallel to the length of the first chute 111. A stopper groove 22 is provided on the sidewall of the insert 2 for insertion of the stopper 1101. A third chamfer 1101 is provided on the end of the stopper 1101 proximate to the mounting hole 11. The third chamfer 11011 is located on the side of the stopper 1101 away from the molding cavity 17 and is intended to abut against the end of the insert 2 proximate to the molding cavity 17. A first return member 1102 is connected between the stopper 1101 and the left core block 15 or the right core block 16. The first return member 1102 ensures that the stopper 1101 tends to extend into the mounting hole 11. In this embodiment, the first restoring member 1102 is a spring, one end of the first restoring member 1102 is connected to the end of the limit block 1101 away from the mounting hole 11 , and the other end of the first restoring member 1102 is connected to the bottom of the first sliding groove 111 .

[0061] The limiting assembly 110 also includes an adjustment block 1103, which includes an abutment portion 11031, a connection portion 11032, and a push portion 11033. A third connecting groove 113 is defined on the side of the first chute 111 away from the lower engaging groove 412. The length of the third connecting groove 113 is parallel to the thickness of the lower die base 41. The number of abutment portions 11031 is the same as that of the limiting block 1101, and they correspond one-to-one. The abutment portions 11031 slideably fit within the third connecting groove 113, and their sliding direction is parallel to the length of the third connecting groove 113. A groove 11012 is defined on the sidewall of the stopper 1101. A fourth chamfer 110311 is defined on the end of the abutting portion 11031 that is adjacent to the first chute 111. The fourth chamfer 110311 is located on the side of the abutting portion 11031 that is distal to the mounting hole 11 and is configured to abut against the wall of the groove 11012. The ends of the connecting portion 11032 are fixedly connected to the ends of the two abutting portions 11031 distal to the first chute 111. A fourth connecting groove 114 is defined on the end of the third connecting groove 113 distal to the first chute 111. The connecting portion 11032 is slidably embedded within the fourth connecting groove 114. A second chute 112 is provided on the side of the fourth connecting groove 114 away from the lower engaging groove 412. A pusher 11033 is slidably engaged within the second chute 112. One end of the pusher 11033 is fixedly connected to the connecting portion 11032, while the other end of the pusher 11033 is flush with the surface of the left and right core blocks 15 and 16 on the side away from the bottom of the lower engaging groove 412. An annular groove 115 is provided on the wall of the second chute 112 on the side away from the fourth connecting groove 114.

[0062] The implementation principle of a mold assembly with easy replacement of inserts in the embodiment of the present application is as follows: when the insert 2 needs to be replaced, loosen the limiting seat 46, remove the left core block 15 and the right core block 16, loosen the bolts, push the pushing part 11033 to slide, drive the connecting part 11032 to slide, drive the abutting part 11031 to slide, the fourth chamfer 110311 abuts the groove wall of the groove 11012, push the limiting block 1101 to overcome the elastic force of the first reset member 1102 to disengage from the limiting groove 22, remove the insert 2, and embed the insert 2 to be replaced into the mounting hole 11, the insert 2 abuts the third chamfer 11011, and push the limiting block 1101 to overcome the first reset member 1102. Part 1102 is elastically embedded in the first slide groove 111. When the limit groove 22 is aligned with the first slide groove 111, the limit block 1101 is embedded in the limit groove 22 under the action of the elastic force of the first reset part 1102, thereby realizing the preliminary fixation of the insert 2 and the left core block 15 or the right core block 16. The bolt is passed through the connecting hole 12 and threadedly connected to the fixing hole 21 to realize the fixed connection between the insert 2 and the left core block 15 or the right core block 16. The left core block 15 and the right core block 16 are embedded in the first connecting groove 143, and the limit seat 46 is installed in the lower mounting groove 411, so that the left guide bar 182 and the right guide bar 192 are embedded in the guide groove 461.

[0063] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mold assembly with easily replaceable inserts, characterized in that: The invention comprises a core body (1) and an insert (2); the core body (1) is provided with a mounting hole (11); the insert (2) is embedded in the mounting hole (11); a fixing hole (21) is provided on a side wall of the insert (2); the axis of the fixing hole (21) is perpendicular to the axis of the mounting hole (11); the core body (1) is provided with a connecting hole (12); the connecting hole (12) is connected to the mounting hole (11); the connecting hole (12) is used for a bolt to be embedded and then threadedly connected to the fixing hole (21).

2. The mold assembly with easily replaceable inserts according to claim 1, characterized in that: It also includes an upper mold base (3) and a lower mold base (41); the core body (1) includes an upper core block (13), a lower core block (14), a left core block (15) and a right core block (16); the upper core block (13) is connected to the upper mold base (3); the lower core block (14) is connected to the lower mold base (41); the left core block (15) and the right core block (16) are slidably connected to the lower core block (14); the sliding direction of the left core block (15) is parallel to the width direction of the lower core block (14); the sliding direction of the right core block (16) is parallel to the sliding direction of the left core block (15); the upper core block (13), the lower core block (14), the left core block (15), the right core block (16) and the insert (2) are enclosed to form a mold cavity (17); the molding cavity (17) is used to mold products.

3. The mold assembly with easily replaceable inserts according to claim 2, characterized in that: The mold body (1) further comprises a guide rod (5); one end of the guide rod (5) is connected to the upper mold base (3); the axial direction of the guide rod (5) is inclined to the sliding direction of the left core block (15) or the right core block (16); the mold body (1) further comprises a left connecting block (18) and a right connecting block (19); the left connecting block (18) is connected to the side of the left core block (15) away from the right core block (16); the left connecting block (18) is provided with a left guide hole (181); the left The axis of the guide hole (181) is parallel to the axis of the corresponding guide rod (5); the guide rod (5) is coaxially slidably embedded in the left guide hole (181); the right connecting block (19) is connected to the side of the right core block (16) away from the left core block (15); the right connecting block (19) is provided with a right guide hole (191); the axis of the right guide hole (191) is parallel to the axis of the corresponding guide rod (5); the guide rod (5) is coaxially slidably embedded in the right guide hole (191).

4. The mold assembly with easily replaceable inserts according to claim 2, characterized in that: A plurality of the molding cavities (17) are provided; the plurality of the molding cavities (17) are distributed at intervals along the length direction of the lower core block (14).

5. The mold assembly with easily replaceable inserts according to claim 2, characterized in that: A plurality of the core bodies (1) are provided; the plurality of the core bodies (1) are evenly distributed on the lower die base (41).

6. The mold assembly with easily replaceable inserts according to claim 2, characterized in that: A positioning groove (141) is provided on one side of the lower core block (14) close to the upper core block (13); a positioning block (131) is connected to one side of the upper core block (13) close to the lower core block (14); and the positioning block (131) is embedded in the positioning groove (141).

7. The mold assembly with easily replaceable inserts according to claim 6, characterized in that: There are two positioning grooves (141); the two positioning grooves (141) are spaced apart along the length direction of the lower core block (14); the number of the positioning blocks (131) is the same as the number of the positioning grooves (141) and corresponds one to one.

8. The mold assembly with easily replaceable inserts according to claim 6, characterized in that: A first chamfer (142) is provided on the wall of the positioning groove (141) near one side of the upper core block (13); a second chamfer (132) is provided on the outer periphery of the positioning block (131) near one end of the lower core block (14); the second chamfer (132) is used to abut against the first chamfer (142).

9. The mold assembly with easily replaceable inserts according to claim 2, characterized in that: The core body (1) further comprises a limiting assembly (110); two limiting assemblies (110) are provided; the two limiting assemblies (110) correspond to the left core block (15) and the right core block (16) respectively; the limiting assembly (110) comprises a limiting block (1101), a first reset member (1102) and an adjusting block (1103); the number of the limiting blocks (1101) and the first reset member (1102) is the same as the number of the insert (2) and corresponds one to one; a first slide groove (1103) is provided on the wall of the mounting hole (11) 11); the limit block (1101) is slidably embedded in the first slide groove (111); the sliding direction of the limit block (1101) is perpendicular to the axial direction of the mounting hole (11); the side wall of the insert (2) is provided with a limit groove (22); the limit groove (22) is used for the limit block (1101) to be embedded; the end of the limit block (1101) close to the mounting hole (11) is provided with a third chamfer (11011); the third chamfer (11011) is located on the side of the limit block (1101) away from the molding cavity (17); The third chamfer (11011) is used for abutting one end of the insert (2) close to the molding cavity (17); the first reset member (1102) is connected to the limit block (1101) and the lower core block (14); the first reset member (1102) makes the limit block (1101) have a tendency to extend into the mounting hole (11); the left core block (15) or the right core block (16) is provided with a second slide groove (112); the second slide groove (112) is connected to the first slide groove (111); the adjustment block (1103) slides Embedded in the second sliding groove (112); the sliding direction of the adjustment block (1103) is perpendicular to the sliding direction of the limit block (1101); the side wall of the limit block (1101) is provided with a groove (11012); the end of the adjustment block (1103) close to the limit block (1101) is provided with a fourth chamfer (110311); the fourth chamfer (110311) is located on the side of the adjustment block (1103) away from the mounting hole (11); the fourth chamfer (110311) is used to abut the groove wall of the groove (11012).

10. The mold assembly with easily replaceable inserts according to claim 9, characterized in that: The regulating block (1103) comprises an abutting portion (11031), a connecting portion (11032) and a pushing portion (11033); the number of the abutting portions (11031) is the same as the number of the limiting blocks (1101) and corresponds one to one; the fourth chamfer (110311) is located at one end of the abutting portion (11031) close to the limiting block (1101); the two ends of the connecting portion (11032) are respectively connected to one end of the two abutting portions (11031) away from the limiting block (1101); the pushing portion (11033) is connected to the connecting portion (11032); and the end of the pushing portion (11033) away from the connecting portion (11032) extends out of the second sliding groove (112).

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