A hot knife mold assembly

Abstract

This invention discloses a hot plate mold assembly, comprising an upper connecting plate assembly, a middle heating plate, and a lower hot plate arranged sequentially from top to bottom. The lower hot plate and the middle heating plate are detachably plugged into each other. The upper connecting plate assembly includes a heat insulation component. This design facilitates the assembly and disassembly of the lower hot plate and the middle heating plate, improving the operating efficiency of the equipment. Furthermore, the heat insulation component locks heat within the lower hot plate, reducing heat loss and improving energy efficiency.

Description

Technical Field

[0001] This invention relates to a hot knife mold assembly. Background Technology

[0002] In existing technology, the heat-sealing die is mounted on a heating plate. The heat from the heating plate raises the temperature of the heat-sealing die, which then heat-seales the packaging film to achieve heat fusion between different layers of the film, thus joining them together. A heat insulation plate 35 is located on the upper part of the heating plate 37, and the heat-sealing die 36 is located at the lower part of the heating plate. The existing connection method uses a threaded rod at the bottom of the handle 34 to fix the three components together (see attached instruction manual). Figure 1 This connection method has several drawbacks: First, disassembly and assembly of the hot heat cutter mold is cumbersome when changing models; second, the handle rod easily conducts heat from the heating plate to the upper part of the insulation plate, greatly reducing the insulation effect of the insulation plate. There is an urgent need for a hot heat cutter mold assembly that is easy to install and has good heat insulation. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a hot knife mold assembly that is easy to install and has good heat insulation effect.

[0004] To achieve the above objectives, the technical solution of the present invention is to provide a hot plate mold assembly, including an upper connecting plate assembly, a middle heating plate and a lower hot plate arranged sequentially from top to bottom, wherein the lower hot plate and the middle heating plate are detachably plugged into each other; the upper connecting plate assembly includes a heat insulation component.

[0005] This design allows for easy assembly and disassembly of the lower heating plate and the middle heating plate, improving equipment operating efficiency. Furthermore, the insulation components lock heat within the lower heating plate, reducing heat loss and improving energy efficiency.

[0006] Preferably, the middle heating plate is provided with a middle insertion groove or middle insertion protrusion that cooperates with the lower heating plate, and the lower heating plate is provided with a lower insertion protrusion or lower insertion groove that slides in cooperation with the middle insertion groove or middle insertion protrusion; the direction of the lower heating plate and the middle heating plate slidingly engaging is perpendicular to the film feeding direction.

[0007] This design allows for rapid mating during insertion, improving assembly efficiency and reducing positioning difficulty.

[0008] Preferably, a C-shaped plug-in block is connected to the middle heating plate. The C-shaped plug-in block includes a middle fixing part, an upper adjusting part and a lower bearing part. The middle fixing part has a vertically oriented slot, and a C-shaped plug-in block locking bolt is provided in the slot. The C-shaped plug-in block locking bolt fixes the C-shaped plug-in block to the side wall of the middle heating plate through threads.

[0009] The upper adjustment part includes an upper adjustment plate, on which a C-shaped plug-in block upper adjustment bolt is threadedly connected, and the inner end of the C-shaped plug-in block upper adjustment bolt abuts against the upper surface of the middle heating plate;

[0010] The inner edge of the lower support portion is fitted to the edge of the lower hot plate.

[0011] This design achieves a plug-in connection, while the middle fixing part securely connects the C-shaped plug-in block to the middle heating plate; the upper adjusting part allows for vertical position adjustment of the C-shaped plug-in block and the middle heating plate; and the lower supporting part provides a backup support and fixation for the lower heating plate.

[0012] Preferably, the middle fixing part is further provided with a lower hot plate adjustment bolt, which is threadedly connected to the middle fixing part, and the inner end of the lower hot plate adjustment bolt abuts against the side wall of the lower hot plate.

[0013] The horizontal rotation direction of the lower hot plate can be adjusted using the adjusting bolts on the lower hot plate, resulting in more precise positioning.

[0014] Preferably, the C-shaped plug blocks are provided in two sets, distributed on both sides of the plugging direction. Each set contains three C-shaped plug blocks, distributed in the middle and at both ends of the side wall of the heating plate. This design makes the plugging guidance more stable, allows for more adjustment positions, and provides more accurate positioning.

[0015] Preferably, the middle heating plate is provided with a plug-in positioning assembly, which includes a positioning block. The positioning block includes an upper fixed end and a lower adjusting end. The upper fixed end is threadedly locked to the middle heating plate by an upper fixing bolt. The lower adjusting end is provided with a lower adjusting bolt, the inner end of which abuts against the lower heating plate. The lower adjusting bolt is threadedly connected to the lower adjusting end, and the length of the inner end of the lower adjusting bolt protruding is adjusted by the thread to adjust the plug-in position of the lower heating plate.

[0016] This design facilitates the insertion positioning and insertion limit of the lower heating plate.

[0017] Preferably, the positioning blocks are provided in two sets: one set is located on the side wall of the middle heating plate at the end position of the insertion direction, and the other set is located on the side wall of the middle heating plate at the beginning position of the insertion direction. Each set includes two positioning blocks; each positioning block is located near the corner of the middle heating plate.

[0018] This layout design makes the insertion and positioning of the lower heating plate more stable and precise.

[0019] Preferably, the upper connecting plate assembly and the middle heating plate are equipped with a clamping cylinder, and the bottom of the clamping cylinder is equipped with a clamping gripper, which locks the lower heating plate to the bottom of the middle heating plate. This design facilitates the quick fixing of the lower heating plate to the bottom of the middle heating plate after it has been positioned, using the clamping cylinder.

[0020] Preferably, the lower hot plate includes an upper adapter plate and a lower hot plate. The adapter plate has a matrix of connecting holes, and the hot plate has a matrix of mating connecting holes. The matrix connecting holes and the matrix mating connecting holes are mated and connected for fixation.

[0021] This design makes it easy to fix and connect hot heat cutters of different sizes on the same adapter plate, so as to quickly replace the lower hot heat cutter.

[0022] Preferably, the upper connecting plate assembly includes an upper connecting fixing plate, a first heat insulation plate, a middle transition plate, and a second heat insulation plate arranged sequentially from top to bottom; the second heat insulation plate is in contact with the middle heating plate; the plates are continuously connected by bolts, and the number of plates in continuous contact by the bolt connection is between 2 and 4.

[0023] This design prevents heat from being transferred between different sheet metal sections via bolts.

[0024] The advantages and beneficial effects of this invention are as follows: This design allows for easy assembly and disassembly of the lower heating plate and the middle heating plate, improving equipment operating efficiency. Furthermore, the heat insulation component locks heat within the lower heating plate, reducing heat loss and improving energy efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the existing technology;

[0026] Figure 2 This is a schematic diagram of the structure of this application;

[0027] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of this application (from another perspective);

[0029] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B (only one of the C-type plug-in block locking bolts 13 is shown; the other one is omitted to show the strip hole 12).

[0030] Figure 6 This is a schematic diagram of the sheet metal structure of this application;

[0031] Figure 7 This is a schematic diagram of the connection structure between the adapter plate and the hot stamping blade.

[0032] Figure 8 A schematic diagram of the adapter plate and the hot stamping blade assembly structure (flip the other corner).

[0033] Figure 9 This is a schematic diagram of the adjustment structure of the lower heating plate and the lower heating plate adjustment bolt (the solid line is the reference position, the dashed line is the adjusted position, and the position of the dashed line is rotated by a small angle relative to the solid line).

[0034] In the diagram: 1. Upper connecting plate assembly; 2. Middle heating plate; 3. Lower heating plate; 4. Middle insert protrusion; 5. Lower insert groove; 6. Film feeding direction; 7. C-shaped insert block; 9. Middle fixing part; 10. Upper adjusting part; 11. Lower bearing part; 12. Slot hole; 13. C-shaped insert block locking bolt; 14. Clamping cylinder; 15. Clamping gripper; 16. Adapter plate; 17. Heating blade plate; 18. Matrix connecting hole; 19. Matrix mating connecting hole; 20. Upper adjusting plate; 2 1. Adjusting bolt on C-type plug block; 22. Adjusting bolt on lower hot plate; 23. Positioning block; 24. Upper fixed end; 25. Lower adjusting end; 26. Upper fixing bolt; 27. Lower adjusting bolt; 28. Upper connecting fixing plate; 29. ​​First heat insulation plate; 30. Middle transition plate; 31. Second heat insulation plate; 32. Hot plate base; 33. Handle; 34. Handle rod; 35. Heat insulation plate; 36. Hot knife mold; 37. Heating plate; 38. Heat insulation layer; 39. Hot rib. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0036] like Figures 1 to 9 As shown in Embodiment 1, a hot plate mold assembly includes an upper connecting plate assembly 1, a middle heating plate 2, and a lower hot plate 3 arranged sequentially from top to bottom. The lower hot plate 3 and the middle heating plate 2 are detachably plugged into each other. The upper connecting plate assembly 1 includes a heat insulation component.

[0037] The middle heating plate 2 is provided with a middle insertion groove or middle insertion protrusion 4 that cooperates with the lower heating plate 3. The lower heating plate 3 is provided with a lower insertion protrusion or lower insertion groove 5 that cooperates with and slides with the middle insertion groove or middle insertion protrusion 4. The direction of the lower heating plate 3 and the middle heating plate 2 in the insertion and sliding cooperation is perpendicular to the film feeding direction 6.

[0038] A C-shaped plug-in block 7 is connected to the middle heating plate 2. The C-shaped plug-in block 7 includes a middle fixing part 9, an upper adjusting part 10 and a lower bearing part 11. The middle fixing part 9 has a vertical slot 12. A C-shaped plug-in block locking bolt 13 is provided in the slot 12. The C-shaped plug-in block locking bolt 13 fixes the C-shaped plug-in block 7 to the side wall of the middle heating plate 2 by means of threads.

[0039] The C-shaped plug-in block 7 is provided in two sets, distributed on both sides of the plug-in direction. Each set contains three C-shaped plug-in blocks 7, distributed in the middle and at both ends of the side wall of the heating plate 2.

[0040] To balance the stability of the connection, equipment cost, and installation compatibility with the clamping cylinder 14, the C-type connector blocks 7 are set in groups.

[0041] The central insert protrusion 4 is fixed on the central heating plate 2, and can be a discontinuous protrusion or a continuous protrusion.

[0042] The upper connecting plate assembly 1 and the middle heating plate 2 are provided with a clamping cylinder 14, and the bottom of the clamping cylinder 14 is provided with a clamping gripper 15, which locks the lower heating plate 3 to the bottom of the middle heating plate 2.

[0043] The lower hot stamping plate 3 includes an upper adapter plate 16 and a lower hot stamping blade 17. The adapter plate 16 has matrix-type connecting holes 18, and the hot stamping blade 17 has matrix-matching connecting holes 19. The matrix-type connecting holes 18 and matrix-matching connecting holes 19 are connected and fixed together. Both the adapter plate 16 and the lower hot stamping blade 17 are made of hard aluminum alloy, which facilitates heat conduction and ensures structural stability. The bottom of the hot stamping blade 17 is provided with stamping ribs 39.

[0044] In use, the hot heat cutter 17 is fixed to the adapter plate 16 using locking devices. The adapter plate 16 is a fixed model and multiple pieces can be manufactured, while the hot heat cutter 17 is available in multiple models. However, the matrix-type connecting holes 19 on the hot heat cutter 17 can all be adapted to connect with the matrix-type connecting holes 18. The adapter plate 16 is preferably provided with a handle 33, through which the lower hot heat cutter 3 and the middle heating plate 2 are inserted and engaged. The lower hot heat cutter 3 is provided with a lower insertion groove 5, which engages with the middle insertion protrusion 4 for sliding. When the sliding is in place, the clamping gripper 15 of the clamping cylinder 14 clamps the hot heat cutter 17 from the bottom up, fixing the lower hot heat cutter 3 onto the middle heating plate 2. The installation is completed in one go. When it is necessary to replace the hot heat plate 17, simply release the clamping gripper 15 of the clamping cylinder 14, pull the lower hot heat plate 3 out of the middle heating plate 2, and then replace it with another lower hot heat plate 3 and repeat the above operation. The disassembly and assembly are highly efficient.

[0045] The insertion and sliding fit direction of the lower heating plate 3 and the middle heating plate 2 is set perpendicular to the film feeding direction 6 to avoid interference with the insertion and disassembly of other equipment on the production line, and at the same time saves the installation space of the production line equipment.

[0046] Example 2 is a further optimization of Example 1. The upper adjustment part 10 includes an upper adjustment plate 20. The upper adjustment plate 20 is threadedly connected with an upper adjustment bolt 21 of a C-shaped plug block. The inner end of the upper adjustment bolt 21 of the C-shaped plug block abuts against the upper surface of the middle heating plate 2.

[0047] The inner edge of the lower support portion 11 is fitted to the edge of the lower hot plate 3.

[0048] In use, rotating the adjusting bolt 21 on the C-shaped plug block downwards causes the C-shaped plug block 7 to move upwards, thereby raising the position of the lower hot plate adjusting bolt 22 and its lower bearing part 11 (the locking position of the C-shaped plug block locking bolt 13 in the slot 12 is adjusted accordingly). Conversely, rotating the adjusting bolt 21 on the C-shaped plug block upwards causes the C-shaped plug block 7 to move downwards, thereby lowering the position of the lower hot plate adjusting bolt 22 and its lower bearing part 11. This allows the position of the lower hot plate adjusting bolt 22 and its lower bearing part 11 to be adjusted to match the adjustment position and bearing position of the lower hot plate 3.

[0049] During normal use, the lower heating plate 3 is clamped and loosened by the clamping cylinder 14. However, if the cylinder malfunctions, the inner edge of the lower bearing part 11 needs to cooperate with the edge of the lower heating plate 3 to temporarily fix and clamp it. At this time, the adjusting bolt 21 on the C-shaped plug block is rotated downward to the lowest position, and the lower plug groove 5 and the middle plug protrusion 4 also abut against each other or leave a small gap.

[0050] Example 3 is a further optimization of Example 2. The middle fixing part 9 is further provided with a lower heating plate adjusting bolt 22. The lower heating plate adjusting bolt 22 is threadedly connected to the middle fixing part 9, and the inner end of the lower heating plate adjusting bolt 22 abuts against the side wall of the lower heating plate 3. Generally, the heating blade mold assembly is mounted on an external frame. The external frame can drive the heating blade mold assembly to achieve adjustment in the XYZ three-dimensional rectangular coordinate system in the horizontal and vertical directions, but it cannot rotate.

[0051] In this application, the lower heating plate adjusting bolt 22 can drive the lower heating plate 3 to rotate slightly on the horizontal plane, avoiding horizontal rotation errors caused by the insertion gap during the insertion process. Preferably, the lower heating plate adjusting bolts 22 are distributed at both ends of the side wall of the middle heating plate 2.

[0052] Example 4 is a further optimization of Example 3. The middle heating plate 2 is provided with a plug-in positioning component. The plug-in positioning component includes a positioning block 23. The positioning block 23 includes an upper fixed end 24 and a lower adjusting end 25. The upper fixed end 24 is threadedly locked to the middle heating plate 2 by upper fixing bolts 26 (preferably two). The lower adjusting end 25 is provided with a lower adjusting bolt 27 (preferably one, and the lower adjusting bolt 27 and the two upper fixing bolts 26 are triangularly distributed). The inner end of the lower adjusting bolt 27 abuts against the lower heating plate 3. The lower adjusting bolt 27 is threadedly connected to the lower adjusting end 25, and the length of the inner end of the lower adjusting bolt 27 is adjusted by adjusting the thread, thereby adjusting the plug-in position of the lower heating plate 3.

[0053] The positioning blocks 23 are provided in two sets: one set is located on the side wall of the middle heating plate 2 at the end position of the insertion direction, and the other set is located on the side wall of the middle heating plate 2 at the beginning position of the insertion direction. Each set contains two positioning blocks 23. Each positioning block 23 is located near the corner of the middle heating plate 2.

[0054] In use, the positioning block 23 at the end position of the insertion direction is secured with the upper fixing bolt 26 and the middle heating plate 2 by threads. The lower adjusting bolt 27 is adjusted to the predetermined insertion position. Then, the lower heating plate 3 and the middle heating plate 2 are inserted and slid together. When the lower heating plate 3 contacts and abuts against the lower adjusting bolt 27 at the end position, it indicates that the sliding is in place. Then, the positioning block 23 at the beginning position of the insertion direction is installed. First, the upper fixing bolt 26 is installed and secured with the middle heating plate 2 by threads. Then, the lower adjusting bolt 27 is adjusted to contact and abut against the lower heating plate 3. After positioning is completed, the clamping gripper 15 of the clamping cylinder 14 clamps the heating blade 17 from the bottom upwards.

[0055] Example 5 is a further optimization of Example 4. The upper connecting plate assembly 1 includes, from top to bottom, an upper connecting fixing plate 28, a first heat insulation plate 29, a middle transition plate 30, and a second heat insulation plate 31. The second heat insulation plate 31 is in contact with the middle heating plate 2. The plates are continuously connected by bolts, and the number of plates in continuous contact with the bolts is between 2 and 4. With this design, the bolts contact a maximum of four plates, making it impossible to transfer heat from the lowest plate to the highest plate. Considering installation efficiency and heat insulation effect, it is preferable for the bolts to contact three plates.

[0056] The bottom of the lower heating plate 3 has a heating base plate 32 that cooperates with the lower heating plate 3 for heating. The film material passes between the lower heating plate 3 and the heating base plate 32. The upper connecting fixing plate 28 is driven and connected to the heating cylinder assembly, and the up and down movement realizes intermittent operation.

[0057] The components that are connected to the upper connecting fixing plate 28, the first heat insulation plate 29, the middle transition plate 30, the second heat insulation plate 31, the middle heating plate 2, the adapter plate 16, and the hot heat knife plate 17 (including, but not limited to, the C-shaped plug block 7, the clamping cylinder 14, the clamping gripper 15, the positioning block 16, and the handle 33) are all provided with a heat insulation layer 38, preferably a glass fiber heat insulation board.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the invention.

Claims

1. A hot iron mold assembly, characterized in that: It includes an upper connecting plate assembly (1), a middle heating plate (2) and a lower heating plate (3) arranged sequentially from top to bottom. The lower heating plate (3) is detachably plugged into the middle heating plate (2). The upper connecting plate assembly (1) includes a heat insulation component. The middle heating plate (2) is provided with a middle insertion groove or middle insertion protrusion (4) that cooperates with the lower heating plate (3), and the lower heating plate (3) is provided with a lower insertion protrusion or lower insertion groove (5) that cooperates with the middle insertion groove or middle insertion protrusion (4) and slides; the direction of the lower heating plate (3) and the middle heating plate (2) insertion and sliding cooperation is perpendicular to the film feeding direction (6); A C-shaped plug-in block (7) is connected to the middle heating plate (2). The C-shaped plug-in block (7) includes a middle fixing part (9), an upper adjusting part (10) and a lower bearing part (11). The middle fixing part (9) has a vertical slot (12). A C-shaped plug-in block locking bolt (13) is provided in the slot (12). The C-shaped plug-in block locking bolt (13) fixes the C-shaped plug-in block (7) to the side wall of the middle heating plate (2) by means of threads. The upper adjustment part (10) includes an upper adjustment plate (20), and the upper adjustment plate (20) is threadedly connected to an adjustment bolt on a C-type plug block (7). The inner end of the adjustment bolt on the C-type plug block (7) abuts against the upper surface of the middle heating plate (2). The inner edge of the lower support part (11) is fitted to the edge of the lower hot plate (3); The middle fixing part (9) is also provided with a lower hot plate adjustment bolt (22), the lower hot plate adjustment bolt (22) is threadedly connected to the middle fixing part (9), and the inner end of the lower hot plate adjustment bolt (22) abuts against the side wall of the lower hot plate (3). The middle heating plate (2) is provided with a plug-in positioning assembly, which includes a positioning block (23). The positioning block (23) includes an upper fixed end (24) and a lower adjusting end (25). The upper fixed end (24) is threadedly locked to the middle heating plate (2) by an upper fixing bolt (26). The lower adjusting end (25) is provided with a lower adjusting bolt (27). The inner end of the lower adjusting bolt (27) abuts against the lower heating plate (3). The lower adjusting bolt (27) is threadedly connected to the lower adjusting end (25), and the length of the inner end of the lower adjusting bolt (27) is adjusted by adjusting the thread to adjust the plug-in position of the lower heating plate (3). The upper connecting plate assembly (1) and the middle heating plate (2) are provided with a clamping cylinder (14), and the bottom of the clamping cylinder (14) is provided with a clamping gripper (15). The clamping gripper (15) locks the lower heating plate (3) to the bottom of the middle heating plate (2). The C-type plug block (7), the clamping cylinder (14), the clamping gripper (15), and the positioning block (23) are all provided with a heat insulation layer (38).

2. The hot iron mold assembly as described in claim 1, characterized in that: The C-type plug-in block (7) is provided in two sets, distributed on both sides of the plug-in direction. Each set contains three C-type plug-in blocks (7), distributed in the middle and at both ends of the side wall of the heating plate (2).

3. The hot iron mold assembly as described in claim 2, characterized in that: The positioning blocks (23) are provided in two sets: one set is located on the side wall of the middle heating plate (2) at the end position of the insertion direction, and the other set is located on the side wall of the middle heating plate (2) at the beginning position of the insertion direction. Each set contains two positioning blocks (23); each positioning block (23) is located near the corner of the middle heating plate (2).

4. The hot iron mold assembly as described in claim 3, characterized in that: The lower hot plate (3) includes an upper adapter plate (16) and a lower hot plate (17). The adapter plate (16) has a matrix-type connection hole (18), and the hot plate (17) has a matrix-matching connection hole (19). The matrix-type connection hole (18) and the matrix-matching connection hole (19) are connected and fixed together.

5. The hot iron mold assembly as described in claim 4, characterized in that: The upper connecting plate assembly (1) includes an upper connecting fixing plate (28), a first heat insulation plate (29), a middle transition plate (30), and a second heat insulation plate (31) arranged sequentially from top to bottom; the second heat insulation plate (31) is in contact with the middle heating plate (2); the plates are continuously connected by bolts, and the number of plates in continuous contact by the bolt connection is between 2 and 4.

Images