Non-invasive mold feeding mechanism

Abstract

The utility model discloses a kind of non-injury mould feeding mechanism, comprising: first material guide plate is arranged on lower die plate, first material guide plate is slidably fitted with pull material connecting plate;Pull material hook is inserted on pull material connecting plate, pull material hook is slidably fitted with first material guide plate;Retaining hook is inserted on first material guide plate, retaining hook is slidably fitted with pull material connecting plate;The side of pull material hook is provided with first lifting block, first lifting block cooperates with pull material hook to make pull material hook lift and separate from material tape under the action of first lifting block when pull material hook back-off towards the direction of far from material tape;The side of retaining hook is provided with second lifting block, second lifting block cooperates with retaining hook to make retaining hook lift and separate from material tape towards the direction of far from material tape by second lifting block when pull material hook advances and drives second lifting block to advance;By above-mentioned mode, the utility model can make material tape not be scratched in material tape feeding process.

Description

Technical Field

[0001] This utility model relates to the technical field of mold feeding mechanism, and in particular to a non-damaging mold feeding mechanism. Background Technology

[0002] In the field of mold feeding mechanisms, traditional feeding devices use a pull hook and a stop hook to achieve step-by-step conveying of the material strip. However, during the feeding process and the mechanism's return to its original position, the pull hook and the stop hook continuously contact and rub against the surface of the material strip, causing scratches on the surface of the material strip (especially electroplated parts). This not only damages the product's appearance but also accelerates oxidation and rusting due to damage to the electroplating layer, resulting in functional damage and quality risks. Existing improvement technologies mostly focus on optimizing the hook material or increasing lubrication, but they still cannot fundamentally avoid the problem of hard scratching between the hook and the material strip. This is especially true for precision parts with strict surface quality requirements, such as electronic connectors and optical components, where the yield is significantly affected. There is an urgent need for a mechanism that can actively detach the hook from the material strip during the feeding and return phases to eliminate the risk of material damage. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a non-damaging mold feeding mechanism that prevents the material strip from being scratched during the feeding process.

[0004] To solve the above-mentioned technical problems, the present invention provides a non-destructive mold feeding mechanism, comprising: a first guide plate disposed on a lower template, a pulling connecting plate slidably fitted on the first guide plate; a driving component connected to one side of the pulling connecting plate, the driving component being connected to an upper template, thereby driving the pulling slider to reciprocate back and forth when the mold is closed or opened; a pulling hook inserted on the pulling connecting plate, the pulling hook being slidably fitted with the first guide plate; a stop hook inserted on the first guide plate, the stop hook being slidably fitted with the pulling connecting plate; a first lifting block disposed on one side of the pulling hook, the first lifting block cooperating with the pulling hook, thereby causing the pulling hook to lift away from the material strip under the action of the first lifting block when the pulling hook retracts; a second lifting block disposed on one side of the stop hook, the second lifting block cooperating with the stop hook, thereby causing the second lifting block to move forward when the pulling hook moves forward, and causing the stop hook to lift away from the material strip through the second lifting block.

[0005] Preferably, the material pulling connecting plate has a first insertion hole that mates with the material pulling hook, and the first guide plate has a first elongated hole, with the material pulling hook slidingly engaging with the first elongated hole.

[0006] Preferably, the first lifting block has a first inclined surface on the side near the material pulling hook, and the material pulling hook has a second inclined surface on the side near the first inclined surface that cooperates with the first inclined surface. When the material pulling hook retracts, the second inclined surface gradually fits into the first inclined surface, thereby forcing the material pulling hook to be lifted and away from the material strip.

[0007] Preferably, the first lifting block is slidably engaged with the first guide plate, and a first transition arc surface is provided on the side of the material hook facing the direction of material conveyor belt movement. The first transition arc surface engages with the side of the first lifting block to force the first lifting block to avoid the path of the material hook when it moves forward to feed material.

[0008] Preferably, the first guide plate has a second insertion hole that mates with the anti-reverse hook, and the pulling connecting plate has a second elongated hole, with the anti-reverse hook slidingly engaging with the second elongated hole.

[0009] Preferably, the second lifting block has a third inclined surface on the side near the anti-reverse hook, and the anti-reverse hook has a fourth inclined surface that cooperates with the third inclined surface on the side near the third inclined surface. When the pulling hook moves forward, the fourth inclined surface and the third inclined surface gradually come into contact, thereby forcing the anti-reverse hook to be lifted and away from the material belt.

[0010] Preferably, the second lifting block is slidably engaged with the material pulling connecting plate, and the anti-reverse hook has a second transition arc surface on the side facing the material conveyor belt forward direction. The second transition arc surface engages with the side of the second lifting block, so that when the material pulling hook retracts, the material pulling connecting plate drives the second lifting block to retract synchronously, avoiding interference with the anti-reverse hook.

[0011] Preferably, a second guide plate is also provided on the lower template. The second guide plate is arranged opposite to the first guide plate and forms a transmission channel for limiting the position of the material strip. A first spring plate is provided on the second guide plate, and one end of the first spring plate is elastically pressed against the upper end of the pull hook.

[0012] Preferably, the second guide plate is also provided with a second spring sheet, one end of which elastically presses against the upper end of the anti-reverse hook.

[0013] Preferably, a floating block is attached to the lower template. The floating block is used to support the position of the material strip. A support component is provided below the floating block to support the position of the floating block. The support component includes a fixing screw, a floating spring, and a top rod. The fixing screw is located at the bottom of the lower template. The two ends of the floating spring abut against the fixing screw and the top rod, respectively, thereby supporting the position of the top rod through the floating spring. The top rod abuts against the bottom of the floating block to support the position of the floating block on the lower template.

[0014] The beneficial effects of this utility model are as follows: By driving the forced disengagement of the material pulling hook and the anti-reverse hook through the first lifting block and the second lifting block, the third inclined surface of the second lifting block is used to lift the anti-reverse hook to disengage from the material strip during the feeding stage, and the first inclined surface of the first lifting block is used to lift the material pulling hook to disengage from the material strip during the retraction stage, thus completely eliminating friction and scratches between the hook body and the material strip; combined with the elastic support of the floating block and the constant pressure guidance of the spring sheet, the material strip is conveyed with zero contact throughout the process, especially ensuring the surface integrity of electroplated parts and precision optical parts; the coordinated cooperation of the inclined surface and the transition arc surface ensures smooth and interference-free operation, and the disengagement and resetting of the material pulling hook and the anti-reverse hook are automatically completed by the opening and closing of the mold, without the need for external power, reducing the failure rate and forming a full life cycle anti-scratch protection system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the positional relationship between this utility model and the upper and lower templates;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model when it is on the lower template;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram showing the positional relationship of the material pulling hook, the anti-reverse hook, the first lifting block, and the second lifting block when they are in the retracted position according to this utility model.

[0019] Figure 5 This is a structural schematic diagram of the material pulling hook, anti-reverse hook, first lifting block, and second lifting block of this utility model;

[0020] Figure 6 This is a schematic diagram showing the positional relationship of the material pulling hook, anti-reverse hook, first lifting block, and second lifting block when the material is in the forward feeding position.

[0021] The components in the attached diagram are labeled as follows:

[0022] 1. Upload the template;

[0023] 2. Lower template; 21. Second guide plate; 22. First spring plate; 23. Second spring plate; 24. Floating block; 25. Fixing screw; 26. Floating spring; 27. Top rod;

[0024] 3. First guide plate; 31. First elongated slot;

[0025] 4. Material pulling connecting plate; 42. Second long slotted hole;

[0026] 5. Material hook; 51. Second inclined surface; 52. Second plane; 53. First transition arc surface; 54. First guide part;

[0027] 6. Anti-reverse hook; 61. Fourth inclined surface; 62. Fourth plane; 63. Second transition arc surface; 64. Second guide part;

[0028] 7. First lifting block; 71. First inclined plane; 72. First spring; 73. First plane;

[0029] 8. Second lifting block; 81. Third inclined plane; 82. Second spring; 83. Third plane;

[0030] 91. Material slide block; 92. Upper mold inserter. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0038] Example:

[0039] refer to Figures 1-4 A non-damaging mold feeding mechanism includes: a first guide plate 3 bolted to the lower template 2, and a pulling connecting plate 4 slidably fitted on the first guide plate 3;

[0040] A drive assembly is connected to one side of the material pulling connecting plate 4. The drive assembly is connected to the upper template 1, so that when the mold is closed or opened, the material pulling slider 91 is driven to reciprocate back and forth through the drive assembly.

[0041] The material pulling hook 5 is inserted into the material pulling connecting plate 4, and the material pulling hook 5 is slidably engaged with the first guide plate 3;

[0042] The anti-reverse hook 6 is inserted on the first guide plate 3, and the anti-reverse hook 6 is in sliding fit with the pulling connecting plate 4;

[0043] A first lifting block 7 is arranged on one side of the material hook 5. The first lifting block 7 is installed on the first guide plate 3. A first mounting groove can be opened on the first guide plate 3 so that the first lifting block 7 is installed in the first mounting groove and slides in the first mounting groove. A first spring groove is opened at the end of the first lifting block 7 away from the material hook 5. A first spring 72 is installed in the first spring groove. One end of the first spring 72 abuts in the first spring groove, and the other end of the first spring 72 abuts on the side wall of the first mounting groove.

[0044] refer to Figures 3-6 The first lifting block 7 cooperates with the material hook 5, so that when the material hook 5 retracts, the first lifting block 7 causes the material hook 5 to be lifted away from the material belt and disengage from the material belt.

[0045] The sliding engagement between the material hook 5 and the first guide plate 3 provides space for the movement of the material hook 5, and allows the material hook 5 to contact the first lifting block 7 installed on the first guide plate 3 during the retraction process. Under the pressure of the first lifting block 7, the material hook 5 is lifted and disengaged from the material belt, so as not to scratch the material belt during the retraction process of the material hook 5.

[0046] Specifically, the material pulling connecting plate 4 has a first insertion hole that mates with the material pulling hook 5, so that the material pulling hook 5 is inserted into the material pulling connecting plate 4. The first insertion hole only allows the material pulling hook 5 to move up and down, so that when the material pulling connecting plate 4 moves back and forth, it synchronously drives the material pulling hook 5 to move back and forth. The first guide plate 3 has a first elongated hole 31, and the material pulling hook 5 slides in the first elongated hole 31, so that the material pulling hook 5 moves back and forth in the first elongated hole 31. Thus, the first elongated hole 31 provides movement space for the material pulling hook 5.

[0047] The first lifting block 7 has a first inclined surface 71 on the side near the material hook 5. The material hook 5 has a second inclined surface 51 on the side near the first inclined surface 71 that cooperates with the first inclined surface 71. One end of the first lifting block 7 extends into the first elongated hole 31. When the material hook 5 retracts, the second inclined surface 51 and the first inclined surface 71 gradually come into contact, thereby forcing the material hook 5 to be lifted and away from the material belt.

[0048] refer to Figure 6 The first lifting block 7 also includes a first plane 73, which is connected to the first inclined plane 71. The first plane 73 is the upper side of the first lifting block 7. The material hook 5 also includes a second plane 52, which is connected to the first inclined plane 71. During the retraction of the material hook 5, the second plane 52 can slide and cooperate with the first plane 73. When the material hook 5 retracts to the position, the material hook 5 passes the first lifting block 7 and is located on the side of the first lifting block 7 away from the first inclined plane 71.

[0049] refer to Figure 3 and Figure 6 The material hook 5 has a first transition arc surface 53 on the side facing the direction of material conveyor belt movement. The first transition arc surface 53 cooperates with the side of the first lifting block 7. Thus, when the material connecting plate 4 drives the material hook 5 to move forward and feed material, the first transition arc surface 53 and the end of the first lifting block 7 located in the first elongated hole 31 slide together, thereby forcing the first lifting block 7 to retract into the first mounting groove without affecting the forward feeding of the material hook 5.

[0050] refer to Figure 3 and Figure 6 Additionally, the first spring forces the first lifting block 7 to move toward the first elongated slot 31, and with the cooperation of the first mounting groove, one end of the first lifting block 7 is placed in part of the lateral (width direction) space of the first elongated slot 31, so that when the material hook 5 moves forward, the first transition arc surface 53 can slide and cooperate with the first lifting block 7, thereby forcing the first lifting block 7 to retract into the first mounting groove.

[0051] refer to Figure 3 and Figure 6 To further ensure that the first transition arc surface 53 can contact the first lifting block 7, a first guide part 54 is provided at the end of the material hook 5 facing the direction of material conveyor belt movement. The first guide part 54 is semi-circular. When the material hook 5 moves forward, the first guide part 54 first extends into the gap between one end of the first lifting block 7 and the first elongated hole 31. During the process of the material hook 5 moving forward, it gradually contacts one end of the first lifting block 7 and, under the action of the first guide part 54, causes one end of the first lifting block 7 to gradually contact and cooperate with the first transition arc surface 53, and finally forces the first lifting block 7 to disengage from the first elongated hole 31 without affecting the forward feeding of the material hook 5.

[0052] refer to Figures 3-6 A second lifting block 8 is arranged on one side of the anti-reverse hook 6. The second lifting block 8 is installed on the material pulling connecting plate 4. A second mounting groove can be opened on the bottom surface of the material pulling connecting plate 4, so that the second lifting block 8 is installed in the second mounting groove and slides in the second mounting groove. A second spring groove is opened at the end of the second lifting block 8 away from the anti-reverse hook 6. A second spring 82 is installed in the second spring groove. One end of the second spring 82 abuts in the second spring groove, and the other end of the second spring 82 abuts against the side wall of the second mounting groove. That is, when the material pulling connecting plate 4 moves forward to feed material with the material pulling hook 5, the second lifting block 8 contacts and engages with the anti-reverse hook 6. That is, when the material pulling connecting plate 4 moves forward to feed material with the material pulling hook 5, the second lifting block causes the anti-reverse hook 6 to be lifted away from the material belt and disengage from the material belt, so as not to affect the feeding or scratch the material belt.

[0053] Specifically, the first guide plate 3 is provided with a second insertion hole that cooperates with the anti-reverse hook 6. The second insertion hole only allows the anti-reverse hook 6 to move up and down. The pulling connecting plate 4 is provided with a second elongated hole 42. The anti-reverse hook 6 and the second elongated hole 42 are slidably engaged, so that when the pulling connecting plate 4 moves back and forth, it synchronously drives the second lifting block 8 to move back and forth.

[0054] The second lifting block 8 has a third inclined surface 81 on the side near the anti-reverse hook 6, and the anti-reverse hook 6 has a fourth inclined surface 61 that cooperates with the third inclined surface 81 on the side near the third inclined surface 81. One end of the second lifting block 8 extends into the second elongated hole 42. When the pulling hook 5 moves forward, the fourth inclined surface 61 and the third inclined surface 81 gradually come into contact, thereby forcing the anti-reverse hook 6 to be lifted and away from the material belt.

[0055] refer to Figure 5 and Figure 6 The second lifting block 8 also includes a third plane 83, which is connected to the third inclined plane 81. The third plane 83 is the upper side of the second lifting block 8. The anti-reverse hook 6 also includes a fourth plane 62, which is connected to the third inclined plane 81. During the forward movement of the pulling hook 5, the fourth plane 62 can slide and cooperate with the third plane 83. When the pulling hook 5 moves forward to the position, the second lifting block 8 passes the anti-reverse hook 6 and is on the side of the anti-reverse hook 6 facing the direction of the material belt movement.

[0056] refer to Figure 6 The anti-reverse hook 6 has a second transition arc surface 63 on the side facing the material conveyor belt. The second transition arc surface 63 cooperates with the side of the second lifting block 8. Thus, when the pulling connecting plate 4 drives the second lifting block 8 to retreat, the side of the second lifting block 8 contacts the second transition arc surface 63. During the process of the pulling connecting plate 4 continuously driving the second lifting block 8 to retreat, the second transition arc surface 63 forces the second lifting block 8 to retract into the second mounting groove without interfering with the anti-reverse hook 6.

[0057] refer to Figures 3-6 Additionally, the second spring 82 forces the second lifting block 8 to move toward the second elongated hole 42, and with the cooperation of the second mounting groove, one end of the second lifting block 8 is placed in part of the lateral (width direction) space of the second elongated hole 42, so that when the second lifting block 8 retracts, it is convenient for the second transition arc surface 63 to slide with the second lifting block 8, thereby forcing the second lifting block 8 to retract into the second mounting groove.

[0058] refer to Figure 3 and Figure 6To further ensure that the second transition arc surface 63 can contact the second lifting block 8, a second guide part 64 is provided at the end of the anti-reverse hook 6 facing the direction of material conveyor belt movement. The second guide part 64 is semi-circular. When the anti-reverse hook 6 retracts, the second guide part 64 first extends into the gap between one end of the second lifting block 8 and the second elongated hole 42. During the retraction of the second lifting block 8, under the action of the second guide part 64, one end of the second lifting block 8 gradually contacts and engages with the second transition arc surface 63, and finally forces the second lifting block 8 to leave the second elongated hole 42 without interfering with the anti-reverse hook 6.

[0059] refer to Figure 2 and Figure 3 The lower template 2 is also bolted with a second guide plate 21. The second guide plate 21 is arranged opposite to the first guide plate 3 and forms a transmission channel for limiting the position of the material belt, thereby limiting the position of the two sides of the material belt and preventing the material belt from running off-center. A first spring plate 22 is installed on the second guide plate 21. One end of the first spring plate 22 is elastically pressed against the upper end of the pull hook 5, thereby preventing the pull hook 5 from disengaging from the first insertion hole and providing a downward force for the pull hook 5, so that the pull hook 5 can contact the guide hole of the material channel more stably when it advances to feed material.

[0060] A second spring plate 23 is also installed on the second guide plate 21. One end of the second spring plate 23 is elastically pressed against the upper end of the anti-reverse hook 6, thereby preventing the anti-reverse hook 6 from disengaging from the second insertion hole and providing a downward force to the anti-reverse hook 6. As a result, when the pull hook 5 retracts and disengages from the material belt, the anti-reverse hook 6 contacts the guide hole of the material channel more stably, thereby ensuring the stability of the material belt position.

[0061] refer to Figures 1-3 A floating block 24 is attached to the lower template 2. The floating block 24 supports the position of the material strip, and its upper surface, which contacts the material strip, forms a transmission channel. Below the floating block 24, a support assembly is provided to support its position. This assembly includes a fixing screw 25, a floating spring 26, and a top rod 27. The fixing screw 25 is installed at the bottom of the lower template 2. The two ends of the floating spring 26 abut against the fixing screw 25 and the top rod 27, respectively, thus supporting the position of the top rod 27. The top rod 27 abuts against the bottom of the floating block 24, supporting its position on the lower template 2. The floating block 24 supports the material strip, preventing damage caused by the pull hook 5 and the anti-reverse hook 6 pressing hard on the strip.

[0062] refer to Figures 1-3The driving assembly includes a material pulling slider 91 and an upper die insert 92. The material pulling slider 91 is connected to the material pulling connecting plate 4, and the upper die insert 92 is connected to the upper template 1, with the upper die insert 92 and the material pulling slider 91 slidingly engaged. Thus, when the mold is closed or opened, the upper template 1 drives the upper die insert 92 to reciprocate up and down, thereby driving the material pulling slider 91 to reciprocate back and forth. The upper die insert 92 is Z-shaped, thus enabling the material pulling slider 91 to reciprocate during mold opening and closing. To reduce friction between the upper die insert 92 and the material pulling slider 91, two rollers can be installed inside the material pulling slider 91. These two rollers roll and rub against the two sides of the upper die insert 92, thereby reducing the friction between the upper die insert 92 and the material pulling slider 91, and thus enabling the material pulling slider 91 to drive the material pulling connecting plate 4 in a more stable reciprocating motion.

[0063] Movement Process: During mold closing, the drive assembly propels the material feeding plate 4 forward, simultaneously driving the material feeding hook 5 and the second lifting block 8 forward. As the material feeding hook 5 moves forward, it drives the material strip forward, thus achieving forward feeding. At the same time, the second lifting block 8, through the cooperation of its third inclined surface 81 and the fourth inclined surface 61 of the anti-reverse hook 6, causes the anti-reverse hook 6 to rise and disengage from the material strip, preventing scratches on the material strip. When the forward feeding reaches its destination, the second lifting block 8 is positioned on the side of the anti-reverse hook 6 facing the direction of material strip movement.

[0064] During mold opening, the drive assembly causes the material pulling connecting plate 4 to retract, simultaneously driving the material pulling hook 5 and the second lifting block 8 to retract as well. When the material pulling hook 5 retracts, its second inclined surface 51 contacts the first inclined surface 71 of the first lifting block 7 mounted on the first guide plate 3, forcing the material pulling hook 5 to rise and disengage from the material channel, thus preventing scratches on the material strip. Simultaneously, during the retraction of the second lifting block 8, the stop hook 6 forces the second lifting block 8 back into the second mounting groove, and under its own weight and the action of the second spring plate 23, the stop hook 6 falls into the guide hole of the material strip, fixing its position. This process is repeated continuously.

[0065] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A non-destructive mold feeding mechanism, characterized in that, include: A first guide plate (3) is set on the lower template (2), and a pulling connecting plate (4) is slidably fitted on the first guide plate (3); A drive assembly is connected to one side of the material pulling connecting plate (4). The drive assembly is connected to the upper template (1), so that when the mold is closed or opened, the material pulling slider (91) is driven to move back and forth. The material pulling hook (5) is inserted on the material pulling connecting plate (4), and the material pulling hook (5) is slidably engaged with the first guide plate (3); An anti-reverse hook (6) is inserted on the first guide plate (3), and the anti-reverse hook (6) is slidably engaged with the pulling connecting plate (4); A first lifting block (7) is provided on one side of the material pulling hook (5). The first lifting block (7) cooperates with the material pulling hook (5) so that when the material pulling hook (5) retracts, the material pulling hook (5) is lifted away from the material belt by the action of the first lifting block (7) and disengages from the material belt. A second lifting block (8) is provided on one side of the anti-reverse hook (6). The second lifting block (8) cooperates with the anti-reverse hook (6) so that when the pulling hook (5) moves forward, it drives the second lifting block (8) forward and the anti-reverse hook (6) is lifted away from the material belt by the second lifting block (8) and disengages from the material belt.

2. The non-destructive mold feeding mechanism according to claim 1, characterized in that: The material pulling connecting plate (4) is provided with a first insertion hole that cooperates with the material pulling hook (5), and the first guide plate (3) is provided with a first elongated hole (31). The material pulling hook (5) is slidably engaged with the first elongated hole (31).

3. The non-destructive mold feeding mechanism according to claim 2, characterized in that: The first lifting block (7) has a first inclined surface (71) on the side near the material hook (5), and the material hook (5) has a second inclined surface (51) that cooperates with the first inclined surface (71) on the side near the first inclined surface (71). When the material hook (5) retracts, the second inclined surface (51) and the first inclined surface (71) gradually come into contact, thereby forcing the material hook (5) to be lifted away from the material belt.

4. The non-destructive mold feeding mechanism according to claim 3, characterized in that: The first lifting block (7) is slidably engaged with the first guide plate (3). The material pulling hook (5) has a first transition arc surface (53) on the side facing the direction of the material belt. The first transition arc surface (53) is engaged with the side of the first lifting block (7) to force the first lifting block (7) to avoid the path of the material pulling hook (5) when it is feeding material.

5. The non-destructive mold feeding mechanism according to claim 1, characterized in that: The first guide plate (3) has a second insertion hole that cooperates with the anti-reverse hook (6), and the pull connecting plate (4) has a second elongated hole (42). The anti-reverse hook (6) and the second elongated hole (42) are slidably engaged.

6. The non-destructive mold feeding mechanism according to claim 5, characterized in that: The second lifting block (8) has a third inclined surface (81) on the side near the anti-reverse hook (6), and the anti-reverse hook (6) has a fourth inclined surface (61) that cooperates with the third inclined surface (81) on the side near the third inclined surface (81). When the pulling hook (5) moves forward, the fourth inclined surface (61) and the third inclined surface (81) gradually come into contact, thereby forcing the anti-reverse hook (6) to be lifted away from the material belt.

7. The non-destructive mold feeding mechanism according to claim 6, characterized in that: The second lifting block (8) is slidably engaged with the material pulling connecting plate (4). The anti-reverse hook (6) has a second transition arc surface (63) on the side facing the material belt forward direction. The second transition arc surface (63) is engaged with the side of the second lifting block (8), so that when the material pulling hook (5) retracts, the material pulling connecting plate (4) drives the second lifting block (8) to retract synchronously, avoiding interference with the anti-reverse hook (6).

8. The non-destructive mold feeding mechanism according to claim 1, characterized in that: The lower template (2) is also provided with a second guide plate (21). The second guide plate (21) is arranged opposite to the first guide plate (3) and forms a transmission channel for limiting the position of the material strip. The second guide plate (21) is provided with a first spring sheet (22). One end of the first spring sheet (22) is elastically pressed against the upper end of the pull hook (5).

9. The non-destructive mold feeding mechanism according to claim 8, characterized in that: The second guide plate (21) is also provided with a second spring plate (23), one end of which elastically presses against the upper end of the anti-reverse hook (6).

10. A non-destructive mold feeding mechanism according to any one of claims 1-9, characterized in that: A floating block (24) is attached to the lower template (2) to support the position of the material strip. A support assembly is provided below the floating block (24) to support the position of the floating block (24). The support assembly includes a stop screw (25), a floating spring (26), and a top rod (27). The stop screw (25) is located at the bottom of the lower template (2). The two ends of the floating spring (26) abut against the stop screw (25) and the top rod (27) respectively, thereby supporting the position of the top rod (27) through the floating spring (26). The top rod (27) abuts against the bottom of the floating block (24) to support the position of the floating block (24) on the lower template (2).

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