Copolyamide hot melt adhesive processing mold for low-pressure injection molding

Abstract

The utility model relates to the technical field of hot melt adhesive processing molds, and discloses a copolyamide hot melt adhesive processing mold for low-pressure injection molding, which comprises a bottom plate, a box body, a bracket, an air cylinder, a flat plate and a pressing piece, and the pressing piece is arranged in the box body and comprises a convex block, a rotating block and a connecting block. Through the arrangement of the flat plate, the movable plate is supported through the tension of the spring, the movable plate drives the connecting block and the rotating block to move upwards, the guide rod moves to the inner wall of the bottom of the second limiting groove along the guide groove, and the guide groove and the second limiting groove limit the heights of different positions of the movable plate; through mutual cooperation of the protruding block, the rotating block, the guide rod and the spring, the vertical movement of the movable plate is controlled, after the top cavity of the movable plate is filled with the hot melt adhesive, the hot melt adhesive is ejected out of the cavity of the box body through upward movement of the movable plate after forming, the formed hot melt adhesive is conveniently taken out, and the demolding effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive processing mold equipment, in particular to a copolyamide hot melt adhesive processing mold for low-pressure injection molding. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and odorless and is an environmentally friendly chemical product. Hot melt adhesive bonding uses a hot melt adhesive machine to melt the hot melt adhesive through heat. The melted adhesive becomes a liquid and is delivered to the surface of the bonded object through the hot melt adhesive hose and hot melt adhesive gun of the hot melt adhesive machine. The bonding is completed after the hot melt adhesive cools down. Hot melt adhesive is usually processed into hot melt adhesive sticks or hot melt adhesive blocks for use.

[0003] The application number is 202120489637.7, which discloses an adjustable mold for the production and processing of hot melt adhesive for plasters, including a mold body, a bottom plate is arranged below the mold body, support plates are arranged at both ends of the top of the bottom plate, the top of the support plate is connected to the bottom of the mold body, a lifting load plate is arranged inside the mold body, and a limit plate is arranged between the support plates to connect with each other, a connecting plate is arranged between the lifting load plate and the limit plate, and connecting blocks are arranged at both ends of the top of the connecting plate, and the top of the connecting block is connected to the bottom of the lifting load plate. The beneficial effects of the utility model are: the utility model has a reasonable design, a simple and stable structure, and strong practicality; it can form hot melt adhesive blocks of different sizes and specifications, improve the scope of application of the mold, and is suitable for promotion and use.

[0004] Although such a setting has a simple and stable structure and strong practicality, it can form hot melt adhesive blocks of different sizes and specifications, improve the application range of the mold, and is suitable for popularization and use. However, after the hot melt adhesive is formed, when the hot melt adhesive is taken out from the groove of the mold, the formed hot melt adhesive needs to be extracted upwards. The device does not have a corresponding demolding mechanism. When the hot melt adhesive is taken out by a tool, since the hot melt adhesive is soft, it may cause a certain degree of damage to the hot melt adhesive. Therefore, a corresponding demolding mechanism needs to be set to facilitate demolding of the hot melt adhesive after it is formed. Utility Model Content

[0005] The utility model aims to provide a copolyamide hot melt adhesive processing mold for low-pressure injection molding to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a copolyamide hot melt adhesive processing mold for low-pressure injection molding, comprising a bottom plate, a box body, a bracket, a cylinder, a flat plate and a pressing piece;

[0008] The upper surface of the bottom plate is fixedly connected to two support plates, and the box body is fixedly connected to the upper surfaces of the two support plates. The purpose of this arrangement is that the bottom plate and the support plates support the box body;

[0009] A bracket is installed on the outer wall of the support plate, the two cylinders are installed on the top of the bracket, the output end of the cylinder passes through the outer wall of the bracket, the flat plate is fixedly connected to the output end of the cylinder, a mold groove is opened on the upper surface of the box body, and the flat plate is located above the mold groove. The purpose of this arrangement is that the bracket is used to install the cylinder, and the flat plate is lifted and lowered by telescoping the output end of the cylinder, and the raw material is injected into the mold groove, and the hot melt adhesive is formed in cooperation with the mold groove;

[0010] A pressing piece is installed inside the box body, and the pressing piece includes a convex block, a rotating block and a connecting block. The purpose of such arrangement is to control the sliding of the movable plate by arranging the pressing piece.

[0011] Furthermore, a mounting groove is provided inside the box body, a connecting block is slidably connected to the bottom of the mounting groove of the box body, a rotating block is rotatably connected to the top of the connecting block, a protrusion is fixedly connected to the top of the rotating block, and the protrusion is slidably connected to the mounting groove of the box body.

[0012] Furthermore, a guide groove is provided on the outer wall of the rotating block, and a limit groove and a second limit groove are provided on the outer wall of the rotating block. The purpose of this arrangement is to first press the protrusion, the rotating block and the guide rod move relative to each other, the guide rod disengages from the inside of the limit groove, and then the rotating block rotates and deflects, the guide rod moves along the guide groove to the bottom inner wall of the second limit groove, the bottom of the limit groove is higher than the bottom of the second limit groove, a height difference is formed between the limit groove and the second limit groove, the guide rod moves from the limit groove to the bottom of the second limit groove, and the guide rod and the rotating block have a relative motion relationship.

[0013] Furthermore, a guide rod is fixedly connected to the inner wall of the installation groove of the box body, and the guide rod is slidably connected to the guide groove. The guide rod is inside the limiting groove. The purpose of this arrangement is that the limiting groove limits and fixes the position of the guide rod.

[0014] Furthermore, the mounting groove of the box body is connected to the mold groove, a movable plate is slidably connected to the inner wall of the mold groove, the connecting block is fixedly connected to the movable plate, and a vertical plate is fixedly connected to one end of the movable plate close to the mounting groove, and the vertical plate closes the connection between the mounting groove and the mold groove. A plurality of springs are installed at the bottom of the movable plate. The purpose of this arrangement is to support the movable plate with spring tension, drive the connecting block and the rotating block to slide upward in the mounting groove of the box body, thereby clamping the guide rod into the inside of the limit groove.

[0015] Furthermore, a plurality of ventilation holes are provided on the outer wall of the box body, and the connecting channel formed by the ventilation holes is located on the outside of the mold groove. The purpose of such arrangement is to cool the raw materials inside the mold groove when external air flows through the connecting channel formed by the ventilation holes, so that the hot melt adhesive can be quickly formed.

[0016] The utility model has the following beneficial effects:

[0017] (1) The utility model is formed by setting a flat plate, pressing the protrusion, the guide rod moves to the top of the limit groove, enters the guide groove, first press the protrusion, the rotating block and the guide rod move relative to each other, the guide rod is separated from the inside of the limit groove, and then the rotating block rotates and deflects, the bottom of the limit groove is higher than the bottom of the second limit groove, and a height difference is formed between the limit groove and the second limit groove. The guide rod moves from the limit groove to the bottom of the second limit groove. The guide rod and the rotating block move relative to each other. While the rotating block is rotating and deflecting, the guide rod and the rotating block are used. The spring tension props up the movable plate, and the movable plate drives the connecting block and the rotating block to move upward. The guide rod moves along the guide groove to the bottom inner wall of the second limit groove. The guide groove and the second limit groove limit the height of the movable plate at different positions. The up and down movement of the movable plate is controlled by the mutual cooperation of the protrusion, the rotating block, the guide rod and the spring. After the top cavity of the movable plate is filled with hot melt adhesive, the movable plate is moved upward after forming to push the hot melt adhesive out of the box cavity, so as to facilitate the removal of the formed hot melt adhesive and achieve the demolding effect.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 4 For this utility model Figure 3 The structural diagram at A in the middle;

[0024] Figure 5This is a schematic diagram of the box structure of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1, bottom plate; 2, box body; 201, vent hole; 202, mold groove; 3, bracket; 4, cylinder; 5, flat plate; 6, pressing piece; 601, protrusion; 602, rotating block; 603, connecting block; 604, guide groove; 605, limiting groove; 606, second limiting groove; 7, support plate; 8, movable plate; 9, spring; 10, guide rod; 11, vertical plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 5 As shown, the utility model is a copolyamide hot melt adhesive processing mold for low-pressure injection molding, comprising a base plate 1, a box body 2, a bracket 3, a cylinder 4, a flat plate 5 and a pressing piece 6;

[0029] Two support plates 7 are fixedly connected to the upper surface of the bottom plate 1, and the box body 2 is fixedly connected to the upper surfaces of the two support plates 7. The purpose of this arrangement is that the bottom plate 1 and the support plates 7 support the box body 2;

[0030] A bracket 3 is installed on the outer wall of the support plate 7, two cylinders 4 are installed on the top of the bracket 3, the output end of the cylinder 4 passes through the outer wall of the bracket 3, the flat plate 5 is fixedly connected to the output end of the cylinder 4, a mold groove 202 is opened on the upper surface of the box body 2, and the flat plate 5 is located above the mold groove 202. The purpose of this arrangement is that the bracket 3 is used to install the cylinder 4, and the flat plate 5 is controlled to rise and fall by telescoping the output end of the cylinder 4, and the raw material is injected into the mold groove 202, and the hot melt adhesive is formed by cooperating with the mold groove 202;

[0031] A pressing member 6 is installed inside the box body 2 , and the pressing member 6 includes a protrusion 601 , a rotating block 602 and a connecting block 603 . The purpose of such arrangement is to control the sliding of the movable plate 8 by arranging the pressing member 6 .

[0032] An installation groove is provided inside the box body 2, and a connecting block 603 is slidably connected to the bottom of the installation groove of the box body 2, and a rotating block 602 is rotatably connected to the top of the connecting block 603. A protrusion 601 is fixedly connected to the top of the rotating block 602, and the protrusion 601 is slidably connected to the installation groove of the box body 2. The purpose of this arrangement is to drive the rotating block 602 to rotate by rotating the protrusion 601.

[0033] A guide groove 604 is provided on the outer wall of the rotating block 602, and a limit groove 605 and a second limit groove 606 are provided on the outer wall of the rotating block 602. The purpose of this arrangement is to first press the protrusion 601, the rotating block 602 and the guide rod 10 move relative to each other, the guide rod 10 disengages from the inside of the limit groove 605, and then the rotating block 602 rotates and deflects, the guide rod 10 moves along the guide groove 604 to the bottom inner wall of the second limit groove 606, the bottom of the limit groove 605 is higher than the bottom of the second limit groove 606, a height difference is formed between the limit groove 605 and the second limit groove 606, the guide rod 10 moves from the limit groove 605 to the bottom of the second limit groove 606, and the guide rod 10 and the rotating block 602 have a relative motion relationship.

[0034] A guide rod 10 is fixedly connected to the inner wall of the installation groove of the box body 2. The guide rod 10 is slidably connected to the guide groove 604. The guide rod 10 is inside the limiting groove 605. The purpose of this setting is that the limiting groove 605 limits and fixes the position of the guide rod 10.

[0035] The mounting groove of the box body 2 is connected with the mold groove 202, and a movable plate 8 is slidably connected to the inner wall of the mold groove 202, and the connecting block 603 is fixedly connected to the movable plate 8. The end of the movable plate 8 close to the mounting groove is fixedly connected with a vertical plate 11, and the vertical plate 11 closes the connection between the mounting groove and the mold groove 202. A plurality of springs 9 are installed at the bottom of the movable plate 8. The purpose of this arrangement is to support the movable plate 8 with the tension of the spring 9, drive the connecting block 603 and the rotating block 602 to slide upward in the mounting groove of the box body 2, thereby clamping the guide rod 10 into the inside of the limit groove 605, and the vertical plate 11 closes the connection between the mounting groove and the mold groove 202 to prevent the raw material inside the mold groove 202 from entering the mounting groove.

[0036] A plurality of ventilation holes 201 are provided on the outer wall of the box body 2. The connecting passage formed by the ventilation holes 201 is located outside the mold groove 202. The purpose of such a setting is to cool the raw materials inside the mold groove 202 when external air flows through the connecting passage formed by the ventilation holes 201, so that the hot melt adhesive can be quickly formed.

[0037] When in use, the spring 9 tension props up the movable plate 8, driving the connecting block 603 and the rotating block 602 to slide upward in the installation groove of the box body 2, so that the guide rod 10 is inserted into the inside of the limiting groove 605, and the external airflow flows through the connecting channel formed by the vent hole 201, cooling the raw material inside the mold groove 202, so that the hot melt adhesive is quickly formed;

[0038] After forming, press the protrusion 601, the guide rod 10 moves to the top of the limiting groove 605 and enters the guide groove 604. First press the protrusion 601, the rotating block 602 moves relative to the guide rod 10, the guide rod 10 disengages from the inside of the limiting groove 605, and then the rotating block 602 rotates and deflects, the bottom of the limiting groove 605 is higher than the bottom of the second limiting groove 606, and a height difference is formed between the limiting groove 605 and the second limiting groove 606. The guide rod 10 moves from the limiting groove 605 to the bottom of the second limiting groove 606. The relative motion relationship between the guide rod 10 and the rotating block 602, before the movable plate 8 moves upward, the movable plate 8 compresses the spring 9, and the spring 9 is in a compressed state. When the rotating block 602 rotates and deflects and the guide rod 10 moves from the limiting groove During the process of 605 moving to the second limiting groove 606, the height difference formed allows the tension of the spring 9 to be released, and the tension of the spring 9 is used to prop up the movable plate 8, and the movable plate 8 drives the connecting block 603 and the rotating block 602 to move upward, and the guide rod 10 moves along the guide groove 604 to the bottom inner wall of the second limiting groove 606, and the guide groove 604 and the second limiting groove 606 limit the height of the movable plate 8 at different positions. The upward and downward movement of the movable plate 8 is controlled by the mutual cooperation of the protrusion 601, the rotating block 602, the guide rod 10 and the spring 9. After the hot melt adhesive fills the top cavity of the movable plate 8, the movable plate 8 is moved upward after forming to push the hot melt adhesive out of the cavity of the box body 2, so as to facilitate the removal of the formed hot melt adhesive and achieve the demoulding effect.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A copolyamide hot melt adhesive processing mold for low-pressure injection molding, comprising a base plate (1), a box body (2), a bracket (3), a cylinder (4), a flat plate (5) and a pressing piece (6), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to two support plates (7), and the box body (2) is fixedly connected to the upper surfaces of the two support plates (7); A bracket (3) is mounted on the outer wall of the support plate (7), the two cylinders (4) are mounted on the top of the bracket (3), the output ends of the cylinders (4) penetrate the outer wall of the bracket (3), the flat plate (5) is fixedly connected to the output ends of the cylinders (4), a mold groove (202) is formed on the upper surface of the box body (2), and the flat plate (5) is located above the mold groove (202); A pressing member (6) is installed inside the box body (2), and the pressing member (6) comprises a protruding block (601), a rotating block (602) and a connecting block (603).

2. A copolyamide hot melt adhesive processing mold for low-pressure injection molding according to claim 1, characterized in that: The box body (2) is provided with a mounting groove inside, the bottom of the mounting groove of the box body (2) is slidably connected to a connecting block (603), the top of the connecting block (603) is rotatably connected to a rotating block (602), the top of the rotating block (602) is fixedly connected to a protrusion (601), and the protrusion (601) is slidably connected to the mounting groove of the box body (2).

3. A copolyamide hot melt adhesive processing mold for low-pressure injection molding according to claim 2, characterized in that: A guide groove (604) is provided on the outer wall of the rotating block (602), and a limiting groove (605) and a second limiting groove (606) are provided on the outer wall of the rotating block (602).

4. A copolyamide hot melt adhesive processing mold for low-pressure injection molding according to claim 3, characterized in that: A guide rod (10) is fixedly connected to the inner wall of the installation groove of the box body (2), the guide rod (10) is slidably connected to the guide groove (604), and the guide rod (10) is located inside the limiting groove (605).

5. A copolyamide hot melt adhesive processing mold for low-pressure injection molding according to claim 4, characterized in that: The mounting groove of the box body (2) is connected to the mold groove (202), a movable plate (8) is slidably connected to the inner wall of the mold groove (202), the connecting block (603) is fixedly connected to the movable plate (8), one end of the movable plate (8) close to the mounting groove is fixedly connected to a vertical plate (11), the vertical plate (11) closes the connection between the mounting groove and the mold groove (202), and a plurality of springs (9) are installed at the bottom of the movable plate (8).

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