Die assembly locking structure of forming machine

Abstract

The utility model discloses a mold closing locking structure of a forming machine, and relates to the technical field of locking structures, the mold closing locking structure comprises a baffle plate, a locking plate connected to one side of the baffle plate in a sliding manner, a fixing piece used for limiting the locking plate from sliding relative to the baffle plate, and a locking column used for being arranged on a movable mold, a convex column is formed on the locking column, the radius size of the convex column is smaller than that of the locking column, the baffle is provided with a receding hole used for the locking column to penetrate through, the locking plate is provided with a through hole used for the locking column to penetrate through and a locking hole used for being matched with the convex column, and the through hole is communicated with the locking hole. The movable mold is pressed, so that the locking column has acting force for moving towards the direction close to the fixed mold, the locking column applies force to the locking plate, the locking plate applies force to the fixed mold, and the locking plate and the fixed mold play a role in limiting movement of the locking column, so that the stability of the movable mold relative to the fixed mold is improved.

Description

Technical Field

[0001] This application relates to the technical field of locking structures, and in particular to a molding machine mold closing locking structure. Background Technology

[0002] A molding machine is a piece of equipment used in industrial production to process materials into specific shapes. Its working principle typically involves heating the material to a certain temperature, making it soft or molten, and then injecting or pressing it into a mold under pressure. After cooling, it forms the desired shape. For example, in the plastics industry, injection molding machines are one of the most common molding devices. They inject molten plastic into a mold under high pressure, and after cooling, the plastic product is formed.

[0003] After the molding machine closes the mold, it will fill it with high-pressure steam to heat the foam plastic particles. The steam pressure is very high, which will push the two molds apart and affect the molding effect of the plastic product. Utility Model Content

[0004] The purpose of this application is to provide a molding machine mold closing and locking structure, which improves the stability of the moving mold relative to the fixed mold after the molding machine is closed.

[0005] The molding machine clamping and locking structure provided in this application adopts the following technical solution: it includes a locking plate, a fixing member for limiting the sliding of the locking plate, and a locking post for being disposed on a moving mold. The locking post is provided with an annular groove and is formed with a protrusion. The radius of the protrusion is smaller than the radius of the locking post. The locking plate is provided with a through hole for the locking post to pass through and a locking hole for cooperating with the protrusion. The through hole communicates with the locking hole, and the radius of the locking hole is smaller than the radius of the through hole.

[0006] By adopting the above technical solution, after the molding machine closes the mold, one end of the locking pin passes through the fixed mold and the through hole. At this time, the protrusion corresponds to the locking hole. Moving the locking plate causes the protrusion to engage with the locking hole. The pressure on the moving mold causes the locking pin to have a force that moves towards the fixed mold. The locking pin abuts against the locking plate, and the locking plate abuts against the fixed mold. The locking pin exerts force on the locking plate, and the locking plate exerts force on the fixed mold. The locking plate and the fixed mold restrict the movement of the locking pin, thereby improving the stability of the moving mold compared to the fixed mold.

[0007] Optionally, the locking post is detachably connected to an abutment block for abutting against the locking plate, and the abutment block and the locking post are formed with the annular groove.

[0008] By adopting the above technical solution, when the abutment block is damaged due to abutment, the abutment block can be replaced. Compared with replacing the entire locking pin, replacing the worn abutment block is less costly and helps to save costs.

[0009] Optionally, a direct abutment ring and an indirect abutment ring are sleeved on the side of the protrusion away from the locking post. The direct abutment ring is located between the indirect abutment ring and the protrusion, and the direct abutment ring and the indirect abutment ring abut against each other. The locking post is provided with a receiving groove for the indirect abutment ring to be engaged. The locking post is threadedly connected with a stop block, and the stop block is provided with a stop groove for the indirect abutment ring to be engaged.

[0010] By adopting the above technical solution, when the direct abutment ring is subjected to force, the direct abutment ring applies force to the indirect abutment ring, and the indirect abutment ring is subjected to force and applies force to the inner wall of the receiving groove, thereby reducing the force on the stop block and protecting the internal thread of the stop block and the external thread of the third boss.

[0011] Optionally, it also includes a baffle, which is provided with two limiting plates and a sliding groove is formed between the two limiting plates. The locking plate slides and engages with the sliding groove. The baffle is provided with a clearance hole for the locking pin to pass through, and the clearance hole communicates with the sliding groove.

[0012] By adopting the above technical solution, the sliding cooperation between the locking plate and the slide groove plays a guiding and limiting role in the sliding of the locking plate, thereby improving the stability of the sliding of the locking plate.

[0013] Optionally, the fixing component is a cylinder, and the locking plate is fixedly connected to the output end of the cylinder.

[0014] By adopting the above technical solution, the cylinder drives the locking plate to slide, automatically driving the locking plate to slide back and forth, thereby improving the efficiency of fixing or loosening the locking plate.

[0015] Optionally, the fastener is an elastic block connected to the limiting plate. The locking plate is provided with two first fixing grooves for the elastic block to engage. When the elastic block engages in one of the first fixing grooves, the clearance hole corresponds to the through hole. When the elastic block engages in the other first fixing groove, the protrusion engages in the locking hole.

[0016] By adopting the above technical solution, simply moving the locking plate allows the elastic block to disengage from the first fixing groove and engage with another first fixing groove. The elastic block positions the locking plate, ensuring that the clearance hole aligns with the through hole or the protrusion engages with the locking hole, thus improving the accuracy of the locking plate moving to the corresponding position.

[0017] Optionally, the limiting plate is provided with four limiting blocks for abutting against the locking plate, wherein two of the limiting blocks are located at one end of the baffle and the other two of the limiting blocks are located at the other end of the baffle.

[0018] By adopting the above technical solution, the limiting block restricts the movement of the locking plate, prevents the locking plate from detaching from the slide groove during the sliding process, and improves the stability of the locking plate's sliding.

[0019] Optionally, the locking plate is provided with two pushing parts, and a channel is formed between the two limiting blocks for the pushing parts to pass through. The channel is connected to the sliding groove. When the elastic block is inserted into the first fixing groove, the pushing part protrudes out of the channel.

[0020] By adopting the above technical solution, the pushing part makes it easier for the operator to push the locking plate, so that the elastic block disengages from one of the first fixing slots and is locked into the other first fixing slot, thereby improving the efficiency of the elastic block switching the first fixing slot.

[0021] Optionally, the fixing member is a fixing block that is slidably connected to the limiting plate. The fixing block is connected to the limiting plate through an elastic element. The locking plate is provided with two second fixing grooves for the fixing block to be engaged. When the fixing block is engaged in one of the second fixing grooves, the clearance hole corresponds to the through hole. When the fixing block is engaged in the other second fixing groove, the protrusion is engaged in the locking hole.

[0022] By adopting the above technical solution, during the process of the fixing block moving from one of the second fixing slots to another, the fixing block is pressed and slides towards the elastic element. The elastic element is compressed and undergoes elastic deformation, maintaining a tendency to elastically return to its original position until the fixing block aligns with the other second fixing slot. At this point, the elastic element forces the fixing block to return to its original position, causing it to engage with the second fixing slot. The fixing block positions the locking plate, ensuring that the clearance hole aligns with the through hole or that the protrusion engages with the locking hole, thus improving the accuracy of the locking plate moving to the corresponding position.

[0023] Optionally, the limiting plate is connected to an installation block, the limiting plate is provided with an installation groove for the installation block to engage, the installation groove is connected to the sliding groove, the installation block is provided with a sliding cavity for sliding cooperation with the fixed block, one end of the elastic member is connected to the installation block, and the other end is connected to the inner wall of the sliding cavity.

[0024] By adopting the above technical solution, when the elastic element or mounting block is damaged, replacing the mounting block, elastic element and mounting block with new ones instead of replacing the entire baffle helps to save costs.

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

[0026] 1. When the moving mold is compressed, the locking pin has a force that moves it toward the fixed mold. The locking pin abuts against the locking plate, and the locking plate abuts against the fixed mold. The locking pin applies force to the locking plate, and the locking plate applies force to the fixed mold. The locking plate and the fixed mold restrict the movement of the locking pin, thereby improving the stability of the moving mold compared to the fixed mold.

[0027] 2. When the abutment block is damaged due to abutment, the abutment block can be replaced. Compared with replacing the entire locking pin, replacing the worn abutment block is less costly and helps to save costs. Attached Figure Description

[0028] Figure 1 This is one of the overall structural schematic diagrams of Embodiment 1 of this application, showing the clearance hole.

[0029] Figure 2 This is one of the partial structural schematic diagrams of Embodiment 1 of this application, showing the locking post.

[0030] Figure 3 This is the second overall structural schematic diagram of Embodiment 1 of this application, showing the slide groove.

[0031] Figure 4 This is a second partial structural schematic diagram of Embodiment 1 of this application, showing the locking hole.

[0032] Figure 5 This is a partial structural schematic diagram of Embodiment 1 of this application.

[0033] Figure 6 yes Figure 5 A sectional view.

[0034] Figure 7 yes Figure 6 Enlarged view of region A

[0035] Figure 8 yes Figure 5 One of the exploded diagrams shows the indirect contact ring.

[0036] Figure 9 yes Figure 6 The second exploded view shows the stop groove.

[0037] Figure 10 This is a cross-sectional view of Embodiment 3 of this application.

[0038] Figure 11 This is a cross-sectional view of Embodiment 4 of this application.

[0039] Figure 12 yes Figure 11 A magnified view of region B.

[0040] Explanation of reference numerals in the attached drawings: 1. Baffle; 11. Clearance hole; 12. Limiting plate; 13. Slide groove; 14. Limiting block; 15. Channel; 16. Mounting groove; 2. Locking plate; 21. Through hole; 22. Locking hole; 24. First fixing groove; 25. Pushing part; 26. Second fixing groove; 3. Locking post; 31. Abutment block; 32. Ring groove; 33. Protrusion post; 34. First boss; 35. Second boss; 36. Third boss; 37. Receiving groove; 4. Fixing element; 41. Cylinder; 42. Elastic block; 43. Fixing block; 5. Mounting block; 51. Slide cavity; 52. Elastic element; 6. Direct abutment ring; 7. Indirect abutment ring; 8. Stopping block; 81. Stopping groove. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 - Appendix Figure 12 This application will be described in further detail.

[0042] This application discloses a molding machine mold closing and locking structure.

[0043] Combination Figure 1 and Figure 2 As shown, it includes a baffle 1 fixedly connected to the fixed mold on the side away from the moving mold, a locking plate 2 slidably connected to the baffle 1 on the side close to the fixed mold, a fixing member 4 for limiting the sliding of the locking plate 2 relative to the baffle 1, and a locking post 3 fixedly connected to the moving mold on the side close to the fixed mold. The end of the locking post 3 away from the moving mold is detachably connected to an abutment block 31. The abutment block 31 is threadedly connected to the locking post 3. The radius of the abutment block 31 is the same as the radius of the locking post 3. An annular groove 32 is formed between the abutment block 31 and the locking post 3. The locking post 3 is formed with a protrusion 33. The radius of the protrusion 33 is smaller than the radius of the locking post 3. A chamfer is provided at the end of the abutment block 31 away from the locking post 3.

[0044] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the baffle 1 has a clearance hole 11 for the locking pin 3 to pass through. Two limiting plates 12 are arranged opposite each other on the side of the baffle 1 closest to the locking plate 2. The limiting plates 12 are integrally formed with the baffle 1, and the clearance hole 11 is located between the two limiting plates 12. A sliding groove 13 is formed between the two limiting plates 12, and the sliding groove 13 slides and engages with the locking plate 2. The sliding groove 13 communicates with the clearance hole 11. The locking plate 2 has a through hole 21 for the locking pin 3 to pass through and a locking hole 22 for engagement with the protruding pin 33. The through hole 21 communicates with the locking hole 22, and the radius of the locking hole 22 is smaller than the radius of the through hole 21.

[0045] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the fixing component 4 is a cylinder 41, which is fixedly connected to the side of the fixed mold away from the moving mold. A controller (not shown in the attached diagram) is externally connected to the cylinder 41. The signal output terminal of the controller is connected to the signal input terminal of the cylinder 41. The locking plate 2, near the cylinder 41, is fixedly connected to the output terminal of the cylinder 41. Taking this embodiment as an example, the cylinder 41 is a double-headed cylinder 41, with two baffles 1, two locking plates 2, and two locking pins 3. The cylinder 41 is located between the two locking plates 2, and the opposing sides of the two locking plates 2 are fixedly connected to the two output terminals of the cylinder 41, respectively.

[0046] The implementation principle of a molding machine mold closing and locking structure in this application embodiment is as follows:

[0047] After the molding machine closes the mold, the protrusion 33 corresponds to the locking hole 22. The cylinder 41 drives the locking plate 2 to move, causing the protrusion 33 to engage with the locking hole 22. The through hole 21 and the clearance hole 11 are misaligned. The locking plate 2 restricts the movement of the locking post 3, improving the stability of the moving mold compared to the fixed mold. After the plastic product is molded, the cylinder 41 drives the locking plate 2 to move, causing the protrusion 33 to disengage from the locking hole 22. The locking post 3 then corresponds to the through hole 21, allowing the moving mold to move relative to the fixed mold.

[0048] Example 2

[0049] The difference between this embodiment and Embodiment 1 is that, in combination with... Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, a first boss 34 is provided on the side of the protrusion 33 away from the locking post 3, a second boss 35 is provided on the side of the first boss 34 away from the protrusion 33, and a third boss 36 is provided on the side of the second boss 35 away from the first boss 34. The locking post 3, the protrusion 33, the first boss 34, the second boss 35, and the third boss 36 are integrally formed. The radius of the first boss 34 is smaller than the radius of the protrusion 33, the radius of the second boss 35 is smaller than the radius of the first boss 34, and the radius of the third boss 36 is larger than the size of the second boss 35 but smaller than the radius of the first boss 34. A direct abutment ring 6 is fitted onto the first boss 34, and the radius of the direct abutment ring 6 is the same as the radius of the locking post 3. The second boss 35 is fitted with an indirect abutment ring 7, which is composed of two half-rings joined together. The radius of the indirect abutment ring 7 is smaller than that of the direct abutment ring 6. A receiving groove 37 is formed between the first boss 34 and the third boss 36 for the indirect abutment ring 7 to engage. When the direct abutment ring 6 is installed on the first boss 34 and the indirect abutment ring 7 is installed on the second boss 35, the direct abutment ring 6 abuts against the indirect abutment ring 7. The third boss 36 is threadedly connected to a stop block 8, which has a stop groove 81 for the indirect abutment ring 7 to engage. The radius of the stop block 8 is the same as that of the locking pin 3. When the direct abutment ring 6 is subjected to force, the direct abutment ring 6 applies force to the indirect abutment ring 7, and the indirect abutment ring 7 applies force to the inner wall of the receiving groove 37, reducing the force on the stop block 8 and protecting the internal threads of the stop block 8 and the external threads of the third boss 36.

[0050] Example 3

[0051] The difference between this embodiment and Embodiment 1 is that, in combination with... Figure 10 and Figure 11As shown, the fixing member 4 is an elastic block 42 fixedly connected to the limiting plate 12. There are two elastic blocks 42, and each limiting plate 12 is fixedly connected to one elastic block 42. The locking plate 2 has four first fixing slots 24 for the elastic blocks 42 to engage. One elastic block 42 corresponds to two first fixing slots 24. When the elastic block 42 engages in one of the first fixing slots 24, the clearance hole 11 corresponds to the through hole 21; when the elastic block 42 engages in the other first fixing slot 24, the protrusion 33 engages in the locking hole 22. Two limiting blocks 14 are provided on the opposite side of the two limiting plates 12. The limiting blocks 14 are integrally formed with the limiting plates 12, with two limiting blocks 14 located at one end of the limiting plates 12 and the other two limiting blocks 14 located at the other end of the limiting plates 12. A channel 15 is formed between two limiting blocks 14 located at the same end of the limiting plate 12. The channel 15 is connected to the slide groove 13. Pushing parts 25 are provided at both opposite ends of the locking plate 2. The pushing parts 25 are integrally formed with the locking plate 2. The pushing parts 25 slide and cooperate with the channel 15. When the elastic block 42 is inserted into the first fixing groove 24, the pushing parts 25 protrude out of the channel 15.

[0052] Example 4

[0053] The difference between this embodiment and embodiment 3 is that, Figure 12 As shown, two limiting plates 12 are detachably connected to an mounting block 5 on one side facing each other. The limiting plate 12 has a mounting groove 16 for the mounting block 5 to be inserted into. The mounting groove 16 is connected to the sliding groove 13. The fixing member 4 is a fixing block 43 that is slidably connected to the mounting block 5. The mounting block 5 has a sliding cavity 51 for sliding cooperation with the fixing block 43. The fixing block 43 and the mounting block 5 are connected by an elastic member 52, which is a spring. One end of the elastic member 52 is fixedly connected to the fixing block 43, and the other end is fixedly connected to the inner wall of the sliding cavity 51. The locking plate 2 has a second fixing groove 26 for the fixing block 43 to be inserted into. There are four second fixing grooves 26. One fixing block 43 corresponds to two second fixing grooves 26. When the fixing block 43 is inserted into one of the second fixing grooves 26, the clearance hole 11 corresponds to the through hole 21; when the fixing block 43 is inserted into another second fixing groove 26, the protrusion 33 is inserted into the locking hole 22.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A molding machine mold closing and locking structure, characterized in that: The utility model provides a locking device for movable mould, including locking plate (2), the fixed part (4) for limiting locking plate (2) slip and the locking column (3) for setting on movable mould, the locking column (3) is provided with ring groove (32), the locking column (3) is shaped with convex column (33), the radius size of convex column (33) is less than the radius size of locking column (3), locking plate (2) is provided with the through -hole (21) for the locking column (3) passes through and is used for with convex column (33) cooperation locking hole (22), the through -hole (21) with locking hole (22) intercommunication, the radius size of locking hole (22) is less than the radius size of through -hole (21).

2. The molding machine clamp locking structure of claim 1 wherein: The locking column (3) is detachably connected with an abutting block (31) for abutting against the locking plate (2), and the abutting block (31) and the locking column (3) are formed with the ring groove (32) therebetween.

3. The molding machine clamp locking structure of claim 1 wherein: The convex column (33) is sleeved with a direct abutting ring (6) and an indirect abutting ring (7) away from one side of the locking column (3), the direct abutting ring (6) is located between the indirect abutting ring (7) and the convex column (33), the direct abutting ring (6) and the indirect abutting ring (7) abut, the locking column (3) is provided with a containing groove (37) for clamping the indirect abutting ring (7), and the locking column (3) is threadedly connected with a stop block (8), the stop block (8) is provided with a stop groove (81) for clamping the indirect abutting ring (7).

4. The clamping locking structure of a molding machine according to Claim 1, wherein: The utility model also includes a baffle (1), the baffle (1) is provided with two limiting plates (12), the locking plate (2) is slidably connected with the sliding groove (13) formed between the two limiting plates (12), the baffle (1) is provided with a gap hole (11) for the locking column (3) to pass through, and the gap hole (11) is in communication with the sliding groove (13).

5. The clamping locking structure of a molding machine according to Claim 1, wherein: The fixed part (4) is a pneumatic cylinder (41), and the locking plate (2) is fixedly connected with an output end of the pneumatic cylinder (41).

6. The clamping locking structure of a molding machine according to claim 4, characterized by: The fixed part (4) is an elastic block (42) connected to the limiting plate (12), the locking plate (2) is provided with two first fixing grooves (24) for clamping the elastic block (42), when the elastic block (42) is clamped in one of the first fixing grooves (24), the gap hole (11) corresponds to the through hole (21), and when the elastic block (42) is clamped in the other first fixing groove (24), the convex column (33) is clamped in the locking hole (22).

7. The clamping locking structure of a molding machine according to claim 6, characterized by: The limiting plate (12) is provided with four limiting blocks (14) for abutting against the locking plate (2), two of the limiting blocks (14) are located at one end of the baffle (1), and the other two limiting blocks (14) are located at the other end of the baffle (1).

8. The molding machine clamp locking structure of claim 7 wherein: The locking plate (2) is provided with two pushers (25), and a passage (15) for the pushers (25) to pass through is formed between the two limiting blocks (14), the passage (15) is communicated with the sliding groove (13), when the elastic block (42) is clamped into the first fixed groove (24), the pushers (25) protrude out of the passage (15).

9. The clamping locking structure of a molding machine according to Claim 4, wherein: The fixing part (4) is a fixed block (43) which is slidably connected to the limiting plate (12), the fixed block (43) is connected to the limiting plate (12) through an elastic element (52), the locking plate (2) is provided with two second fixed grooves (26) for the fixed block (43) to be clamped into, when the fixed block (43) is clamped into one of the second fixed grooves (26), the let-hole (11) corresponds to the through-hole (21), when the fixed block (43) is clamped into the other second fixed groove (26), the protruding column (33) is clamped into the locking hole (22).

10. The molding machine clamp locking structure of claim 9 wherein: The limiting plate (12) is connected with a mounting block (5), the limiting plate (12) is provided with a mounting groove (16) for the mounting block (5) to be clamped into, the mounting groove (16) is communicated with the sliding groove (13), the mounting block (5) is provided with a sliding cavity (51) for slidably cooperating with the fixed block (43), one end of the elastic element (52) is connected to the mounting block (5), and the other end is connected to the inner wall of the sliding cavity (51).

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