Mouth mold device for producing degradable plastic bottle

Abstract

The utility model belongs to the technical field of injection molding, in particular relates to a mouth mold device for producing a degradable plastic bottle, and provides the following scheme aiming at the problems that a plastic bottle mouth with threads on the outer part is inconvenient to take out and the secondary production efficiency is reduced due to the fact that two molds are adopted by the existing equipment for cooperative operation. The mouth mold device for producing the degradable plastic bottle comprises an external mold, an internal mold is inserted into the bottom end of the external mold, the external mold comprises a first mold, and the first mold is in inserted fit with two positioning rods correspondingly cast on one side of a second mold through two positioning holes symmetrically formed in one end; the tops of the ends, close to each other, of the first mold and the second mold penetrate through the same injection molding opening. According to the mold, the external mold and the internal mold which can be separated are matched with each other, so that the behavior of quick demolding is realized, the problem that a plastic bottle opening with threads is clamped in the mold and cannot be taken out is avoided, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a die device for producing degradable plastic bottles. Background Art

[0002] Molds (muj0) are various molds and tools used in industrial production to produce desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. Simply put, a mold is a tool used to create a shaped object. This tool is composed of various parts, and different molds are composed of different parts. It primarily achieves the desired shape by changing the physical state of the material being molded. Known as the "mother of industry," it is a tool that, under the action of external forces, transforms a blank into a part of a specific shape and size. It is widely used in blanking, die forging, cold forming, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of products such as engineering plastics, rubber, and ceramics.

[0003] After searching the patent publication number CN201317104Y, the purpose of this utility model is to provide a bottle mouth mold for making extruded plastic bottles, including a collision plate, the center of which is a hollow groove, and the hollow groove is composed of three parts, which are an upper groove, a middle groove, and a lower groove from top to bottom.

[0004] The existing equipment uses two molds to work together, which makes it inconvenient to remove the plastic bottle mouth with external threads and reduces the secondary production efficiency. Therefore, we propose a mouth mold device for the production of degradable plastic bottles to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcoming that the mouth of a plastic bottle is difficult to take out, and proposes a mouth die device for producing degradable plastic bottles.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a die device for producing degradable plastic bottles, comprising an outer die, the bottom end of which is plugged with an inner die;

[0007] The external mold includes a mold 1, wherein the mold 1 is plugged into two positioning rods correspondingly cast on one side of the mold 2 through two positioning holes symmetrically provided at one end thereof; a common injection port is provided through the top of the end where the mold 1 and the mold 2 are close to each other; a bottle mouth mold groove is provided at the bottom of the injection port at the end where the mold 1 and the mold 2 are close to each other; and a bottle shoulder mold groove is provided through the bottom end of the bottle mouth mold groove;

[0008] The internal mold includes a matching block which is gap-inserted into the bottle mouth mold groove and the bottle shoulder mold groove. A sealing bottom plate is cast on the bottom end of the matching block, and a flow groove is opened on the top of the matching block.

[0009] Preferably, positioning blocks are cast at both ends of the top of the sealing bottom plate, and the tops of the two positioning blocks are correspondingly inserted into the positioning grooves opened at the bottom ends of the mold 1 and the mold 2.

[0010] Preferably, a sealing ring is fixedly installed on the top peripheral side of the sealing bottom plate through a slot.

[0011] Preferably, the sealing ring is made of polyurethane rubber.

[0012] Preferably, mounting plates 1 are welded to both ends of the mold 1, and a plurality of through holes are formed in the interiors of the two mounting plates 1.

[0013] Preferably, mounting plates 2 are welded to both ends of the mold 2, and a plurality of through holes are formed in the interiors of the two mounting plates 2.

[0014] Preferably, the interiors of the bottle mouth mold groove and the bottle shoulder mold groove are polished, and the exterior of the matching block is polished.

[0015] In the present invention, the die device for producing degradable plastic bottles is:

[0016] 1. The utility model cooperates with the detachable outer mold and the inner mold. After the inner mold moves downward and separates from the outer mold, the mold 1 and mold 2 contained in the outer mold move to both ends, so that the plastic bottle mouth with the outer thread falls and is demoulded naturally, effectively avoiding the problem of mold jamming.

[0017] 2. The utility model installs a sealing bottom plate at the bottom end of the matching block to seal the gap between the matching block and the bottom ends of the bottle mouth mold groove and the bottle shoulder mold groove, thereby avoiding leakage of injection liquid and causing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a die device for producing degradable plastic bottles proposed in the present invention;

[0019] Figure 2 This is a structural schematic diagram of a mold portion of a die device for producing degradable plastic bottles proposed in the present invention;

[0020] Figure 3 This is a structural diagram of the second part of the mold of a die device for producing degradable plastic bottles proposed in the present invention;

[0021] Figure 4 This is a structural schematic diagram of the internal mold part of a die device for producing degradable plastic bottles proposed by the utility model.

[0022] In the figure: 1. External mold; 101. Mold 1; 102. Mold 2; 103. Positioning rod; 104. Positioning hole; 105. Injection port; 106. Bottle mouth mold groove; 107. Bottle shoulder mold groove; 108. Positioning groove; 2. Internal mold; 201. Matching block; 202. Sealing bottom plate; 203. Positioning block; 3. Sealing ring; 4. Mounting plate 1; 5. Mounting plate 2. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-4 , a die device for producing degradable plastic bottles, comprising an outer die 1, the bottom end of which is plugged with an inner die 2;

[0025] The outer mold 1 includes a mold 101. The mold 101 is plugged into two positioning rods 103 cast on one side of the mold 2 102 through two positioning holes 104 symmetrically defined at one end. A common injection port 105 is formed through the top of the end where the mold 1 101 and the mold 2 102 are close to each other. A bottle mouth mold groove 106 is defined at the bottom of the injection port 105 at the end where the mold 1 101 and the mold 2 102 are close to each other. A bottle shoulder mold groove 107 is formed through the bottom end of the bottle mouth mold groove 106.

[0026] The internal mold 2 includes a matching block 201 that is gap-inserted into the bottle mouth mold groove 106 and the bottle shoulder mold groove 107 . A sealing bottom plate 202 is cast at the bottom end of the matching block 201 , and a flow groove is opened at the top of the matching block 201 .

[0027] In this embodiment, positioning blocks 203 are cast at both ends of the top of the sealing bottom plate 202 , and the tops of the two positioning blocks 203 are correspondingly inserted into the positioning grooves 108 opened at the bottom ends of the mold 1 101 and the mold 2 102 .

[0028] By adopting the above solution, positioning blocks 203 are cast at both ends of the top of the sealing bottom plate 202, and the tops of the two positioning blocks 203 are correspondingly inserted into the positioning grooves 108 opened at the bottom ends of mold 1 101 and mold 2 102, so as to achieve a precise connection between the three by utilizing the cooperation between the positioning blocks 203 and the positioning grooves 108, thereby avoiding the problem of misalignment.

[0029] In this embodiment, a sealing ring 3 is fixedly mounted on the top peripheral side of the sealing bottom plate 202 through a slot.

[0030] By adopting the above solution, the sealing ring 3 is fixedly installed on the top peripheral side of the sealing bottom plate 202 through the card groove, which effectively increases the connection airtightness between the top peripheral side of the sealing bottom plate 202 and the bottom ends of mold 1 101 and mold 2 102, avoiding leakage problems.

[0031] In this embodiment, the sealing ring 3 is made of polyurethane rubber.

[0032] By adopting the above solution, the sealing ring 3 is made of polyurethane rubber, which effectively increases the high temperature resistance of the sealing ring 3.

[0033] In this embodiment, both ends of the mold 1 101 are welded with mounting plates 1 4 , and a plurality of through holes are formed in the interior of the two mounting plates 1 4 .

[0034] By adopting the above solution, mounting plates 1 4 are welded to both ends of the mold 101 , and a plurality of through holes are formed in the interior of the two mounting plates 4 , so as to facilitate the installation and fixation of the mold 101 .

[0035] In this embodiment, two mounting plates 5 are welded to both ends of the mold 2 102 , and a plurality of through holes are formed in the interior of the two mounting plates 5 .

[0036] By adopting the above solution, mounting plates 2 5 are welded at both ends of the mold 2 102 , and a number of through holes are opened inside the two mounting plates 2 5 , so that the mold 2 102 can be fixed by the mounting plates 2 5 , thereby effectively improving the installation stability.

[0037] In this embodiment, the interiors of the bottle mouth mold groove 106 and the bottle shoulder mold groove 107 are polished, and the exterior of the matching block 201 is polished.

[0038] By adopting the above solution, by polishing the inside of the bottle mouth mold groove 106 and the bottle shoulder mold groove 107, and polishing the outside of the matching block 201, the friction between the inside of the bottle mouth mold groove 106 and the bottle shoulder mold groove 107 and the outside of the matching block 201 is reduced, thereby avoiding the problem of unevenness of the injection-molded plastic bottle mouth.

[0039] In the present invention, when in use, the two positioning rods 103 are matched with the two positioning holes 104 to connect the mold 1 101 and the mold 2 102, and then the matching block 201 on the internal mold 2 is inserted into the bottle mouth mold groove 106 and the bottle shoulder mold groove 107, and the two positioning blocks 203 are correspondingly inserted into the two positioning grooves 108, and injection molding is performed through the injection port. The solution fills the gap between the bottle mouth mold groove 106 and the bottle shoulder mold groove 107 and the matching block 201. After the injection molding is completed, it is restricted to detach from the internal mold 2, and then the external mold 1 is separated from the left and right.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A die device for producing degradable plastic bottles, comprising an outer die (1), characterized in that: The bottom end of the external mold (1) is plugged with an internal mold (2); The external mold (1) includes a mold 1 (101), and the mold 1 (101) is plugged into two positioning rods (103) correspondingly cast on one side of the mold 2 (102) through two positioning holes (104) symmetrically opened at one end. The top of the end where the mold 1 (101) and the mold 2 (102) are close to each other is provided with a same injection port (105). The end where the mold 1 (101) and the mold 2 (102) are close to each other and is provided with a bottle mouth mold groove (106) at the bottom of the injection port (105). The bottom end of the bottle mouth mold groove (106) is provided with a bottle shoulder mold groove (107). The internal mold (2) comprises a matching block (201) which is interspaced and inserted into the bottle mouth mold groove (106) and the bottle shoulder mold groove (107); a sealing bottom plate (202) is cast at the bottom end of the matching block (201); and a flow groove is provided at the top of the matching block (201).

2. A die device for producing degradable plastic bottles according to claim 1, characterized in that: Positioning blocks (203) are cast at both ends of the top of the sealing bottom plate (202), and the tops of the two positioning blocks (203) are correspondingly inserted into the positioning grooves (108) opened at the bottom ends of the mold 1 (101) and the mold 2 (102).

3. A die device for producing degradable plastic bottles according to claim 1, characterized in that: A sealing ring (3) is fixedly mounted on the top peripheral side of the sealing bottom plate (202) via a slot.

4. A die device for producing degradable plastic bottles according to claim 3, characterized in that: The sealing ring (3) is made of polyurethane rubber.

5. A die device for producing degradable plastic bottles according to claim 1, characterized in that: Both ends of the mold 1 (101) are welded with mounting plates 1 (4), and a plurality of through holes are provided inside the two mounting plates 1 (4).

6. A die device for producing degradable plastic bottles according to claim 1, characterized in that: Mounting plates 2 (5) are welded to both ends of the mold 2 (102), and a plurality of through holes are provided inside the two mounting plates 2 (5).

7. A die device for producing degradable plastic bottles according to claim 1, characterized in that: The interiors of the bottle mouth mold groove (106) and the bottle shoulder mold groove (107) are polished, and the exterior of the matching block (201) is polished.

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