Blank preheating device for plastic bottle blow molding
By designing a drive assembly with adjustable spacing and thermally conductive material plywood, the problem that the existing technology cannot adapt to bottle preforms of different sizes is solved, and the uniform heating and applicability of plastic bottle preforms are achieved.
Patent Information
- Application Number
- CN202421034417.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing plastic bottle preheating devices can only be used for bottle preforms of specific sizes and cannot be adapted to bottle preforms of different sizes, resulting in increased processing costs and waste of resources.
A plastic bottle blow molding embryo preheating device is designed including a box and a transmission assembly. The transmission assembly is driven by a reciprocating motor and a forward and reverse screw to make the second heating plate adjustable spacing, and is coated with a thermally conductive ply. Bottles of different sizes are heated.
The device can adapt to bottle preforms of different sizes, improves the applicability of the preheating device, ensures heating uniformity, and reduces resource waste and processing costs.
Smart Images
Figure CN222201636U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic bottle embryo processing, in particular to an embryo preheating device for plastic bottle blow molding. Background Art
[0002] Plastic preforms are semi-finished products made through injection molding. They are the form of plastic bottles and other containers before they are formed. In the process of making preforms, the plastic raw materials are filled into the mold at a specific temperature and pressure, and then formed into a specific shape after injection molding. The preforms, which serve as intermediates, are thus formed. In order to avoid uneven heating of the preforms during the blow molding process, the preforms are preheated before blow molding.
[0003] Currently, many preheating devices on the market only clamp and preheat preforms of a specific size. Therefore, when preheating preforms of various sizes, it is usually necessary to prepare preheating devices of different sizes, which undoubtedly increases processing costs and leads to waste of resources.
[0004] Therefore, in order to solve the above problems, a preheating device for preforms used in blow molding of plastic bottles is proposed. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model provides a preheating device for preforms for blow molding of plastic bottles, which has the advantages of being able to adjust the distance between clamping plates to accommodate preforms of different sizes, and solves the problem of poor applicability of traditional preheating devices.
[0006] To achieve the above purpose, the utility model provides the following technical solutions: A preheating device for preforms for blow molding of plastic bottles comprises a box body and a transmission assembly, the box body has a built-in cavity and a front end opening, a support platform is installed at the center of the upper surface of the bottom plate of the box body, and the transmission assembly is installed on the support platform;
[0007] Wherein, the transmission assembly includes a reciprocating motor and a bearing seat, a forward and reverse screw is rotatably connected between the reciprocating motor and the bearing seat, a first slider and a second slider are respectively meshed and slid on the threads on both sides of the forward and reverse screw, and a second heating plate is installed on the upper surfaces of the first slider and the second slider;
[0008] Clamps are detachably connected on opposite surfaces of the two second heating plates.
[0009] Furthermore, a positioning groove is extended downward from the center of the upper surface of the support platform, and mounting plates are installed on the inner walls of the two side plates with relatively large spacing in the positioning groove, and the reciprocating motor and the bearing seat are respectively installed on the opposite surfaces of the two mounting plates.
[0010] Furthermore, the tail end of the output shaft of the reciprocating motor is connected to one end of the forward and reverse screw rods, and the outer wall of the other end of the forward and reverse screw rods is connected to the inner wall of the inner ring of the bearing inside the bearing seat.
[0011] Furthermore, two limit rods are installed between the two mounting plates and are respectively located on both sides of the forward and reverse screw rods. The two limit rods both penetrate the first slider and the second slider, and the first slider and the second slider are both slidably connected to the two limit rods.
[0012] Furthermore, receiving blocks are installed on the upper ends of the first sliding block and the second sliding block, and the two second heating plates are installed on the opposite surfaces of the two receiving blocks respectively, and the bottom ends of the two second heating plates are close to the upper surface of the support platform.
[0013] Furthermore, the two clamping plates are both made of heat-conducting material.
[0014] Furthermore, three first heating plates are installed at intervals on the lower surface of the top plate of the box body.
[0015] Furthermore, two door panels are hingedly mounted on the opening end surface of the box body.
[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0017] The preform preheating device for blow molding of plastic bottles utilizes a transmission assembly installed in a positioning groove to drive two second heating plates to move toward each other. With the cooperation of two clamping plates, the two second heating plates can adjust the spacing to cover and clamp bottle preforms of different sizes and heat them. This avoids the problem that traditional preheating devices cannot be adjusted according to bottle preforms of different sizes, thereby enhancing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional schematic diagram of the overall installation structure of the utility model;
[0019] Figure 2 This is a three-dimensional schematic diagram of the overall installation structure of the utility model from above;
[0020] Figure 3 It is a three-dimensional schematic diagram of the connection structure of the transmission component of the utility model.
[0021] In the figure: 1. Box body; 11. Support table; 12. Positioning groove; 13. First heating plate; 14. Door panel; 2. Transmission assembly; 21. Mounting plate; 22. Reciprocating motor; 23. Bearing seat; 24. Forward and reverse screws; 25. First slider; 26. Second slider; 27. Limit rod; 28. Support block; 29. Second heating plate; 3. Clamp. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-3 In this embodiment, a preheating device for preforms for blow molding of plastic bottles is provided. The transmission assembly 2 installed in the positioning groove 12 is used to drive two second heating plates 29 to move toward each other. With the cooperation of two clamping plates 3, the two second heating plates 29 can adjust the spacing to cover and clamp bottle preforms of different sizes and heat them. This avoids the problem that traditional preheating devices cannot be adjusted according to bottle preforms of different sizes, thereby enhancing the applicability of the device.
[0024] Specifically, a preheating device for preforms for blow molding of plastic bottles in this embodiment includes a box body 1 and a transmission assembly 2. The box body 1 has a built-in cavity and a front opening. A support platform 11 is installed at the center of the upper surface of the bottom plate of the box body 1, and the transmission assembly 2 is installed on the support platform 11.
[0025] The transmission assembly 2 includes a reciprocating motor 22 and a bearing seat 23, a forward and reverse screw 24 is rotatably connected between the reciprocating motor 22 and the bearing seat 23, a first slider 25 and a second slider 26 are respectively meshed and slid on the threads on both sides of the forward and reverse screw 24, and a second heating plate 29 is installed on the upper surface of the first slider 25 and the second slider 26;
[0026] The clamping plates 3 are detachably connected to the opposite surfaces of the two second heating plates 29 .
[0027] During actual use, the user places the preform to be heated on the support table 11, and then connects the external power supply to the reciprocating motor 22 and controls the operation of the reciprocating motor 22. The operation of the reciprocating motor 22 can drive the forward and reverse screws 24 to rotate clockwise and counterclockwise, so that the first slider 25 and the second slider 26 can reciprocate within the stroke range of the side threads of the forward and reverse screws 24, and then the first slider 25 and the second slider 26 can reciprocate relative to each other, so that the first slider 25 and the second slider 26 can move away from and close to each other, so that the two second heating plates 29 drive the two clamps 3 to adjust the spacing according to the size of different preforms, and the preforms are covered between the two clamps 3; after the two clamps 3 have covered the preforms, the user turns on the second heating plate 29, and the heat emitted by the second heating plate 29 is transferred to the preforms through the clamps 3 to preheat the preforms.
[0028] A positioning groove 12 is extended downward from the center of the upper surface of the support platform 11. Mounting plates 21 are installed on the inner walls of the two side plates with relatively large spacing in the positioning groove 12. The reciprocating motor 22 and the bearing seat 23 are respectively installed on the opposite surfaces of the two mounting plates 21.
[0029] The tail end of the output shaft of the reciprocating motor 22 is connected to one end of the forward and reverse screw 24 , and the outer wall of the other end of the forward and reverse screw 24 is connected to the inner wall of the inner ring of the bearing inside the bearing seat 23 .
[0030] During actual use, the reciprocating motor 22 operates so that its output shaft can rotate in both directions, clockwise and counterclockwise. With the cooperation of the bearing inside the bearing seat 23, the forward and reverse screws 24 can rotate in both directions, clockwise and counterclockwise, between the reciprocating motor 22 and the bearing seat 23.
[0031] Two limit rods 27 are installed between the two mounting plates 21 and are respectively located on both sides of the forward and reverse screw rods 24 . The two limit rods 27 both penetrate the first slider 25 and the second slider 26 . The first slider 25 and the second slider 26 are both slidably connected to the two limit rods 27 .
[0032] Under the restriction of the limit rod 27, the first slider 25 and the second slider 26 can perform linear motion on the forward and reverse screws 24 to prevent the first slider 25 and the second slider 26 from rotating during the motion, so that the second heating plate 29 moves more stably.
[0033] The first slider 25 and the second slider 26 are both provided with receiving blocks 28 at their upper ends. Two second heating plates 29 are respectively provided on opposite surfaces of the two receiving blocks 28 . The bottom ends of the two second heating plates 29 are close to the upper surface of the support platform 11 .
[0034] The two clamping plates 3 are both made of heat-conducting material.
[0035] Due to the heat-conducting material of the clamping plate 3, when the second heating plate 29 emits heat, the heat can be conducted to various parts on the clamping plate 3, and further, the heat can be evenly transferred to the bottle preform through the clamping plate 3, so as to avoid local overheating or uneven heating of the bottle preform; the clamping plate 3 and the second heating plate 29 are detachably connected, and when covering and clamping bottle preforms of different shapes, clamping plates 3 of different shapes can be replaced, so that the bottle preforms can be better covered by the clamping plate 3.
[0036] Three first heating plates 13 are installed at intervals on the lower surface of the top plate of the box body 1.
[0037] The first heating plate 13 can provide additional heat to accelerate the preheating process of the preform, and work together with the second heating plate 29 to ensure that the preform is heated more evenly during the preheating process, thereby improving the preheating efficiency.
[0038] Two door panels 14 are hingedly mounted on the open end surface of the box body 1 .
[0039] Through the door panel 14 , the user can take and place the preforms in the box 1 more conveniently.
[0040] The working principle of the above embodiment is:
[0041] The user places the preform to be heated on the support table 11, and then connects the external power supply to the reciprocating motor 22 and controls the operation of the reciprocating motor 22. The operation of the reciprocating motor 22 can drive the forward and reverse screws 24 to rotate clockwise and counterclockwise. With the cooperation of the receiving block 28, the first slider 25 and the second slider 26 can drive the two second heating plates 29 and the two clamping plates 3 to adjust the spacing according to the sizes of different preforms, and then wrap the preforms between the two clamping plates 3; after the two clamping plates 3 wrap and clamp the preforms, the user turns on the first heating plate 13 and the second heating plate 29. The first heating plate 13 can provide additional heat, thereby accelerating the preheating process of the preforms. The heat emitted by the second heating plate 29 is transferred to the preforms through the clamping plates 3 to preheat the preforms.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A preheating device for preforms for blow molding of plastic bottles, comprising a housing (1) and a transmission assembly (2), characterized in that: The box body (1) has a built-in cavity and a front opening, a support platform (11) is installed at the center of the upper surface of the bottom plate of the box body (1), and the transmission assembly (2) is installed on the support platform (11); The transmission assembly (2) comprises a reciprocating motor (22) and a bearing seat (23), a forward and reverse screw (24) is rotatably connected between the reciprocating motor (22) and the bearing seat (23), a first slider (25) and a second slider (26) are respectively meshed and slidably engaged on the threads on both sides of the forward and reverse screw (24), and a second heating plate (29) is installed on the upper surface of the first slider (25) and the second slider (26); Clamping plates (3) are detachably connected to the opposing surfaces of the two second heating plates (29).
2. A preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: A positioning groove (12) is provided at the center of the upper surface of the support platform (11) and extends downward. Mounting plates (21) are installed on the inner walls of the two side plates with a relatively large spacing in the positioning groove (12). The reciprocating motor (22) and the bearing seat (23) are respectively installed on the opposite surfaces of the two mounting plates (21).
3. A preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: The tail end of the output shaft of the reciprocating motor (22) is connected to one end of the forward and reverse screw rods (24), and the outer wall of the other end of the forward and reverse screw rods (24) is connected to the inner wall of the inner ring of the bearing inside the bearing seat (23).
4. A preheating device for preforms for blow molding of plastic bottles according to claim 2, characterized in that: Two limiting rods (27) are installed between the two mounting plates (21) and are respectively located on both sides of the forward and reverse screw rods (24). The two limiting rods (27) both penetrate the first slider (25) and the second slider (26). The first slider (25) and the second slider (26) are both slidably connected to the two limiting rods (27).
5. The preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: A receiving block (28) is mounted on the upper ends of the first sliding block (25) and the second sliding block (26); the two second heating plates (29) are mounted on opposite surfaces of the two receiving blocks (28), respectively; and the bottom ends of the two second heating plates (29) are close to the upper surface of the support platform (11).
6. A preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: The two clamping plates (3) are both made of heat-conducting material.
7. A preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: Three first heating plates (13) are installed at intervals on the lower surface of the top plate of the box body (1).
8. A preheating device for preforms for blow molding of plastic bottles according to claim 1, characterized in that: The opening end surface of the box body (1) is hingedly provided with two door panels (14).