Demolding device for thick sheet plastic suction mold

Abstract

The demolding device comprises a base, a mold core is arranged on the base, sliding grooves are formed in the two sides of the mold core, and one end of a sliding block is arranged in each sliding groove in a sliding mode; a connecting block is arranged on one side of the sliding block, and the bottom of the connecting block is slidably connected with the inner bottom of the mold core. A driving assembly is arranged in the mold core, is connected with the connecting blocks and drives the two connecting blocks to move oppositely or oppositely; an ejection groove is formed in the top of the mold core, and one end of an ejection block is arranged in the ejection groove in a sliding manner; a pushing block is arranged below the ejection block, is arranged at the inner bottom of the mold core in a sliding manner, and is connected with a driving assembly; the pushing block is driven by the driving assembly to move to push the ejection block to move upwards. The connecting block is driven by the driving assembly to move relatively, so that the two sliding blocks are driven to slide into the mold core from the sliding grooves, demolding of the box body is not affected, the pushing block drives the ejection block to move upwards, the top of the ejection block is ejected out of the ejection groove, and the box body and the mold core are demolded.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum forming mold technology, and in particular relates to a demolding device for thick sheet vacuum forming molds. Background Technology

[0002] Vacuum forming equipment, as a key device or system specifically designed for manufacturing vacuum-formed products, works on the principle of heating and vacuum adsorption technology. It precisely processes plastic sheets into various shapes of vacuum-formed products according to the shape of the mold core, such as blister packs and blister shells. In existing technologies, some product shapes exhibit unique complexity, such as concave inner grooves on the inner wall of the plastic box. These structures are difficult to demold after forming due to the structure of the inner grooves, causing demolding difficulties and easily damaging the molded box during demolding. Utility Model Content

[0003] Based on the above background, the purpose of this utility model is to provide a demolding device for thick sheet vacuum forming molds.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A demolding device for a thick sheet vacuum forming mold includes a base, on which a mold core is provided, the mold core having a hollow internal structure;

[0006] The mold core has sliding grooves on both sides. The sliding grooves are square, and one end of a slider is slidably mounted in the sliding groove. The slider is used to form the inner groove of the blister sheet.

[0007] The slider is provided with a connecting block on one side inside the mold core, and the bottom of the connecting block is slidably connected to the bottom of the mold core.

[0008] The mold core is equipped with a drive component, which is connected to the connecting blocks and drives the two connecting blocks to move relative to each other or in opposite directions.

[0009] The top of the mold core is provided with an ejector groove, which is T-shaped, and one end of the ejector block is slidably provided in the ejector groove;

[0010] The ejector block is I-shaped, and a pusher block is provided below the ejector block. The pusher block is slidably disposed at the bottom of the mold core and is connected to the drive assembly.

[0011] The pusher block moves under the drive of the drive component, pushing the ejector block upward.

[0012] With the above technical solution, after the thick sheet is vacuum-formed on the mold core, the drive component drives the connecting block to move relative to each other, thereby causing the two sliders to slide from the groove into the mold core without affecting the demolding of the box. When the sliders move to the inside of the mold core, the drive component continues to move, and the drive component drives the push block to move, thereby pushing the push block to move the ejector block upward. The top of the ejector block is ejected from the ejector slot, thereby demolding the box from the mold core. The staff can then remove the box to complete the demolding, avoiding the situation where it is difficult to demold due to negative pressure after vacuum forming.

[0013] Furthermore, the drive assembly includes a motor, a gear, and a first rack;

[0014] The bottom of the mold core is provided with a first groove; the motor is located at the bottom of the first groove, the gear is located at the bottom of the first groove, and the output end of the motor is connected to the gear.

[0015] The first rack is slidably disposed in the first groove, and the two first racks are meshed with the gear;

[0016] One end of each of the two first racks is connected to the side of the two connecting blocks, respectively;

[0017] The lower end of the connecting block is slidably disposed within the first groove.

[0018] Through the above technical solution, the motor drives the gear to rotate, thereby driving the first rack to move. The two first racks drive the connecting block to slide in the first groove, thereby driving the slider to slide towards the inside of the mold core, so that the slider moves out of the groove in the molded box.

[0019] Furthermore, the drive assembly also includes a second rack;

[0020] The bottom of the mold core is provided with a second groove, which is perpendicular to the first groove in the horizontal direction; and the middle position of the first groove is connected to the middle position of the second groove, and the upper end of the gear is located in the second groove.

[0021] The second rack is slidably disposed in the second groove, and the second rack is meshed with the gear;

[0022] The top of the second rack is connected to the bottom of the push block.

[0023] The above technical solution uses the rotation of the gear to drive the second rack to move in the second groove, thereby driving the push block to move, which in turn drives the ejector block to move upward.

[0024] Furthermore, the end of the pushing block near the ejector block is rectangular, the other end is a right trapezoid, and the inclined surface is located at the top of the pushing block;

[0025] The bottom of the ejector block is slidably connected to the top of the push block, and the distance the ejector block slides in the rectangular part of the push block corresponds to the distance the slider slides into the mold core.

[0026] With the above technical solution, during the process of the drive component driving the slider to slide completely into the mold core, the ejector block moves in the rectangular part of the push block without vertical displacement. After the slider is completely in the mold core, the ejector block moves on the inclined surface of the push block, thereby driving the ejector block to move upward and separating the box from the mold core.

[0027] Furthermore, the bottom end of the ejector block is provided with an inclined surface, which corresponds to the inclined surface of the push block.

[0028] The above technical solution can better enable the ejector block to slide and move upward on top of the pusher block.

[0029] Furthermore, the connecting block is T-shaped, and the circumference of the end of the connecting block that connects to the slider is greater than the circumference of the slider.

[0030] The inner wall of the mold core is provided with four guide rods, and the two ends of the guide rods are fixedly connected to the inside of the mold core;

[0031] The guide rods are symmetrically arranged at the upper end of the connecting block and pass through the connecting block, and the connecting block is slidably connected to the guide rods;

[0032] The ejector block is provided with a through groove, which corresponds to the guide rod, and the middle position of the guide rod passes through the through groove.

[0033] The above technical solution guides and stabilizes the slider after it slides into the mold core.

[0034] Furthermore, a third groove is provided on both sides inside the first groove, and a first movable block is provided on one side of the first rack, the first movable block being slidably disposed in the third groove.

[0035] The above technical solution improves the stability of the first rack's movement within the first groove.

[0036] Furthermore, a fourth groove is provided on one side of the second groove, and a second moving block is provided on one side of the second rack, the second moving block being slidably disposed in the fourth groove.

[0037] The above technical solution improves the stability of the second rack's movement within the second groove.

[0038] This utility model has the following beneficial effects:

[0039] 1. After the thick sheet is vacuum-formed on the mold core, the drive component moves the connecting block relative to it, thereby causing the two sliders to slide from the groove into the mold core without affecting the demolding of the box. When the sliders move to the inside of the mold core, the drive component continues to move, and the drive component moves the push block, which in turn moves the ejector block upward. The top of the ejector block is ejected from the ejector slot, thereby demolding the box from the mold core. The staff can then remove the box to complete the demolding, avoiding the situation where it is difficult to demold due to negative pressure after vacuum forming.

[0040] 2. The motor drives the gear to rotate, which in turn drives the first rack to move. The two first racks drive the connecting block to slide in the first groove, which in turn drives the slider to slide towards the inside of the mold core, so that the slider moves out of the groove in the molded box. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the semi-sectional three-dimensional structure of this utility model;

[0043] Figure 2 This is a three-dimensional structural diagram of the mold core and the box body of this utility model;

[0044] Figure 3 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0045] Figure 4 This is a schematic diagram of the external three-dimensional structure of the mold core of this utility model;

[0046] Figure 5 This is a three-dimensional structural diagram showing the disassembled drive assembly and the bottom of the mold core of this utility model.

[0047] Among them: 1. Base;

[0048] 2. Mold core; 21. Slide groove; 22. Ejector groove; 23. First groove; 24. Second groove; 25. Third groove; 26. Fourth groove;

[0049] 3. Slider; 31. Connecting block; 32. Guide rod;

[0050] 4. Ejector block; 41. Pusher block; 42. Through slot;

[0051] 5. Gear; 51. First rack; 52. Second rack; 53. Motor; 54. First moving block; 55. Second moving block;

[0052] 6. Box body. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0055] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0056] like Figure 1-5 As shown, a demolding device for a thick sheet vacuum forming mold includes a base 1, a mold core 2 on the base 1, the mold core 2 having a hollow internal structure; sliding grooves 21 are formed on both sides of the mold core 2, the sliding grooves 21 are square, and one end of a slider 3 is slidably disposed in the sliding grooves 21; the slider 3 is used for forming the inner groove of the vacuum forming sheet; a connecting block 31 is provided on one side of the slider 3 inside the mold core 2, the bottom of the connecting block 31 is slidably connected to the bottom of the mold core 2; a driving assembly is provided inside the mold core 2, the driving assembly is connected to the connecting block 31, and drives the two connecting blocks 31 to move relative to or away from each other; an ejection groove 22 is formed on the top of the mold core 2, the ejection groove 22 is T-shaped, and one end of an ejector block 4 is slidably disposed in the ejection groove 22; the ejector block 4 is I-shaped, and a pushing block 41 is provided below the ejector block 4, the pushing block 41 is slidably disposed at the bottom of the mold core 2 and connected to the driving assembly; the pushing block 41 moves under the drive of the driving assembly, pushing the ejector block 4 to move upward.

[0057] Specifically, the drive assembly includes a motor 53, a gear 5, and a first rack 51; a first groove 23 is provided at the bottom of the mold core 2; the motor 53 is located at the bottom of the first groove 23, the gear 5 is rotatably located at the bottom of the first groove 23, and the output end of the motor 53 is connected to the gear 5; the first rack 51 is slidably located in the first groove 23, and the two first racks 51 are meshed with the gear 5; one end of each of the two first racks 51 is connected to the side of two connecting blocks 31 respectively; the lower end of the connecting block 31 is slidably located in the first groove 23, and third grooves 25 are provided on both sides inside the first groove 23; a first moving block 54 is provided on one side of the first rack 51, and the first moving block 54 slides... The drive assembly also includes a second rack 52 located within the third groove 25; a second groove 24 is provided at the bottom of the mold core 2, and the second groove 24 is perpendicular to the first groove 23 in the horizontal direction; the middle position of the first groove 23 is connected to the middle position of the second groove 24, and the upper end of the gear 5 is located in the second groove 24; the second rack 52 is slidably located within the second groove 24, and the second rack 52 is meshed with the gear 5; the top of the second rack 52 is connected to the bottom of the push block 41, a fourth groove 26 is provided on one side of the second groove 24, and a second moving block 55 is provided on one side of the second rack 52, and the second moving block 55 is slidably located within the fourth groove 26.

[0058] Specifically, the push block 41 is rectangular at one end near the ejector block 4 and right-angled trapezoid at the other end, with an inclined surface at the top of the push block 41; the bottom of the ejector block 4 is slidably connected to the top of the push block 41, and the distance the ejector block 4 slides in the rectangular part of the push block 41 corresponds to the distance the slider 3 slides into the mold core 2. The bottom end of the ejector block 4 is provided with an inclined surface, which corresponds to the inclined surface of the push block 41.

[0059] Specifically, the connecting block 31 is T-shaped, and the circumference of the end of the connecting block 31 connected to the slider 3 is larger than the circumference of the slider 3; the inner wall of the mold core 2 is provided with four guide rods 32, and the two ends of the guide rods 32 are fixedly connected to the inside of the mold core 2; the guide rods 32 are symmetrically arranged on the upper end of the connecting block 31 and pass through the connecting block 31, and the connecting block 31 and the guide rods 32 are slidably connected; the ejector block 4 is provided with a through groove 42, corresponding to the guide rods 32, and the middle position of the guide rod 32 passes through the through groove 42.

[0060] The working principle of this utility model is as follows: After the thick sheet is heated and placed on the mold core 2 for vacuum forming, the motor 53 drives the gear 5 to rotate, thereby driving the two first racks 51 to move, thereby driving the connecting block 31 to move in the first groove 23, thereby driving the slider 3 to slide into the mold core 2 and move out from the inner groove of the formed box 6 without obstructing the box 6 from demolding from the mold core 2. During the movement of the slider 3, the second rack 52 moves in the second groove 24, driving the push block 41 to move. At this time, the ejector block 4 moves in the rectangular part of the ejector block without longitudinal displacement. After the slider 3 is completely in the mold core 2, the gear 5 continues to rotate, and the inclined surface of the ejector block moves to the bottom of the ejector block 4. Under the push of the inclined surface, the ejector block 4 is pushed upward, and the top of the ejector block 4 is ejected from the ejector groove 22, thereby demolding the box 6 from the mold core 2. The operator can then remove the box 6 to complete the demolding, avoiding the situation where it is difficult to demold due to negative pressure after vacuum forming.

[0061] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A demolding device for a thick sheet blister mold comprising a base (1), characterized in that: The base (1) is provided with a mold core (2), and the mold core (2) is internally hollow; Both sides of the mold core (2) are provided with a sliding groove (21), the sliding groove (21) is square, and one end of the sliding groove (21) is slidably provided with a sliding block (3); the sliding block (3) is used for molding an inner groove of a plastic suction piece; One side of the sliding block (3) provided in the mold core (2) is provided with a connecting block (31), and the bottom of the connecting block (31) is slidably connected with the inner bottom of the mold core (2); The mold core (2) is internally provided with a driving assembly, the driving assembly is connected with the connecting block (31), and the two connecting blocks (31) are driven to move relative to or away from each other; The top of the mold core (2) is provided with an ejection groove (22), the ejection groove (22) is T-shaped, and one end of the ejection groove (22) is slidably provided with an ejection block (4); The ejection block (4) is a T-shaped, and the lower side of the ejection block (4) is provided with a pushing block (41), the pushing block (41) is slidably arranged in the inner bottom of the mold core (2), and is connected with the driving assembly; The pushing block (41) is driven to move by the driving assembly, and the ejection block (4) is pushed to move upward.

2. The demolding device for a slabbing blister mold according to claim 1, characterized by: The driving assembly comprises a motor (53), a gear (5) and a first rack (51); The inner bottom of the mold core (2) is provided with a first groove (23); the motor (53) is arranged at the bottom of the first groove (23), the gear (5) is rotatably arranged at the bottom of the first groove (23), and the output end of the motor (53) is connected with the gear (5); The first rack (51) is slidably arranged in the first groove (23), and the two first racks (51) are meshingly connected with the gear (5); One end of each of the two first racks (51) is connected with the side surface of the connecting block (31); The lower end of the connecting block (31) is slidably arranged in the first groove (23).

3. The demolding device for a slabbing blister mold according to claim 2, characterized by: The driving assembly further comprises a second rack (52); The inner bottom of the mold core (2) is provided with a second groove (24), the second groove (24) is perpendicular to the first groove (23) in the horizontal direction; and the middle position of the first groove (23) is communicated with the middle position of the second groove (24), and the upper end of the gear (5) is arranged in the second groove (24); The second rack (52) is slidably arranged in the second groove (24), and the second rack (52) is meshingly connected with the gear (5); The top of the second rack (52) is connected with the bottom of the pushing block (41).

4. The demolding apparatus for a thick slab blister mold according to claim 1, wherein: The end of the pushing block (41) close to the ejection block (4) is rectangular, the other end is a right trapezoid, and the inclined surface is arranged on the top of the pushing block (41); The bottom of the ejection block (4) is slidably connected with the top of the pushing block (41), and the sliding distance of the ejection block (4) in the rectangular part of the pushing block (41) corresponds to the sliding distance of the sliding block (3) into the mold core (2).

5. The demolding device for a slabbing blister mold according to claim 4, characterized in that: The bottom of the ejection block (4) is provided with an inclined surface corresponding to the inclined surface of the pushing block (41).

6. The demolding device for a slabbing blister mold according to claim 5, characterized in that: The connecting block (31) is T-shaped, and the circumference of one end of the connecting block (31) connected with the sliding block (3) is larger than the circumference of the sliding block (3). The inner wall of the mold core (2) is provided with four guide rods (32), both ends of the guide rod (32) are fixedly connected with the inside of the mold core (2); The guide rod (32) is symmetrically arranged at the upper end of the connecting block (31) and penetrates the connecting block (31), and the connecting block (31) is in sliding connection with the guide rod (32); The ejection block (4) is provided with a through groove (42) penetrating the ejection block (4), which corresponds to the guide rod (32), and the middle position of the guide rod (32) penetrates the through groove (42).

7. The demolding device for a slabbing blister mold according to claim 2, characterized by: Both sides of the first groove (23) are provided with third grooves (25), one side of the first rack (51) is provided with a first moving block (54), and the first moving block (54) is slidably arranged in the third groove (25).

8. The demolding device for a slabbing blister mold according to claim 3, characterized by: One side of the second groove (24) is provided with a fourth groove (26), one side of the second rack (52) is provided with a second moving block (55), and the second moving block (55) is slidably arranged in the fourth groove (26).

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