Combined forming jig for plastic uptake of PVC (polyvinyl chloride) membrane
The modular design of the PVC film vacuum forming fixture solves the problem of having to replace the entire fixture when it is damaged, achieving rapid assembly and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FEILI PRECISION MOULD CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-14
AI Technical Summary
Existing modular forming fixtures for PVC film vacuum forming have an integrated structure, which requires replacement of the entire fixture when damaged, resulting in high operating costs and failing to reduce production costs.
Designed as a modular structure, it includes a base plate, partitions, and forming rings, enabling rapid assembly via alignment plugs, plug slots, and locking bolts. It is made of wood and allows for individual replacement of damaged parts.
It enables rapid assembly of fixtures and reduces costs; damaged parts can be replaced individually, thus lowering production costs.
Smart Images
Figure CN224116692U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC film vacuum forming technology, specifically a combined molding fixture for PVC film vacuum forming. Background Technology
[0002] A bedside table consists of a cabinet body and storage components. The cabinet body is the core framework, with side panels providing lateral support. These panels are fixed to the front panel, back panel, and bottom panel using mortise and tenon joints or hardware connectors to form a stable three-dimensional frame. The front panel serves as the top surface, supporting everyday items such as lamps and alarm clocks. It must be both load-bearing and wear-resistant. The frame of the front panel is called the cabinet frame. In current technology, cabinet frames are generally made of wood or plastic. When producing plastic cabinet frames, the PVC film after vacuum forming needs to be placed into an injection molding machine for injection molding. The PVC film often requires the use of a jig for vacuum forming.
[0003] Most existing modular molding fixtures for PVC film vacuum forming are one-piece structures. When damaged, individual parts cannot be replaced in a timely manner; the entire molding fixture must be replaced, resulting in higher operating costs and failing to reduce production costs. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a combined molding fixture for PVC film vacuum forming, thereby solving the problems mentioned in the background.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined molding fixture for PVC film vacuum forming, comprising a bottom plate, a partition plate, and a top plate arranged sequentially from bottom to top, and a molding ring fixedly connected along the edge of the top plate. Alignment plugs are fixedly installed on both sides of the partition plate. An alignment plug groove adapted to the alignment plug is opened at the top of the bottom plate. An upper locking bolt is provided between the alignment plug and the bottom plate. Chamfered portions are provided at the four corners of the molding ring. A notch and a vacuum forming hole are opened on the outer side of the molding ring. Lower locking bolts arranged in a ring are provided between the partition plate and the molding ring.
[0008] The alignment plug and the alignment plug slot are provided in four identical sets, and the four sets of alignment plug and the alignment plug slot are symmetrically distributed around the vertical center line of the partition.
[0009] The above technical solution, through the design of the alignment plug and the alignment slot, makes it easy to assemble the partition on the top of the base plate, which can play a role in positioning and installation and reduce the difficulty of operation.
[0010] Preferably, the cross-section of the forming ring is composed of an inclined segment, a first horizontal segment, a first vertical segment, a second horizontal segment, and a second vertical segment, forming a rectangular frame with an open top. The angle between the inclined segment and the first horizontal segment is in the range of 90° to 110°.
[0011] Preferably, the top plate and the forming ring are both in tight contact with the partition plate, the outer edge of the forming ring and the outer edge of the partition plate are located on the same plane, the lower locking bolts are arranged at equal intervals around the edge of the forming ring, and the lower locking bolts pass through the partition plate and extend into the interior of the forming ring.
[0012] The above technical solution allows the forming ring to be installed on the top of the partition using the lower locking bolts. The lower locking bolts, which are evenly spaced along the edge of the forming ring, also ensure that the partition will not separate from the forming ring.
[0013] Preferably, the vacuum forming hole extends through the forming ring, the partition, and the bottom plate, and the grooved outer ring has an evenly spaced edge design.
[0014] The above technical solution, with its design of vacuum forming holes penetrating through the forming ring, partition, and base plate, enables better vacuum forming of PVC films.
[0015] Preferably, the bottom plate, partition plate, top plate, and forming ring are all made of wood.
[0016] The above technical solution reduces usage costs by using a base plate, partition, top plate, and molding ring made of wood.
[0017] Compared with the prior art, this utility model provides a combined molding fixture for PVC film vacuum forming, which has the following beneficial effects:
[0018] 1. This modular forming fixture for PVC film vacuum forming includes partitions, a base plate, and a forming ring. The partitions and base plate can be quickly positioned and installed using alignment plugs, alignment slots, and upper locking bolts. The partitions and forming ring can be quickly installed using lower locking bolts. The overall operation is simple and assembly is convenient. Furthermore, the wooden base plate, partitions, top plate, and forming ring reduce usage costs. The modular design of the partitions, base plate, and forming ring allows for timely replacement if damaged, eliminating the need to replace the entire fixture and reducing production costs for enterprises.
[0019] 2. This modular forming fixture for PVC film vacuum forming, through the design of the forming ring and the inclined section, first horizontal section, first vertical section, second horizontal section and second vertical section inside the forming ring, can vacuum form the PVC film and ensure that the PVC film can be tightly adsorbed and adhered to the outside of the forming ring. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the partition of this utility model;
[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0024] Figure 5 This is a schematic diagram of the half-section structure of this utility model;
[0025] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0026] The components are: 1. Base plate; 2. Partition plate; 3. Top plate; 4. Forming ring; 401. Inclined section; 402. First horizontal section; 403. First vertical section; 404. Second horizontal section; 405. Second vertical section; 5. Alignment plug block; 6. Alignment plug groove; 7. Upper locking bolt; 8. Notch; 9. Vacuum forming hole; 10. Lower locking bolt; 11. Chamfered part. Detailed Implementation
[0027] 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.
[0028] Example 1:
[0029] like Figure 1-6 As shown, the present invention provides a combined molding fixture for PVC film vacuum forming, comprising a bottom plate 1, a partition plate 2 and a top plate 3 arranged sequentially from bottom to top, and a molding ring 4 fixedly connected along the edge of the top plate 3. Alignment plug-in blocks 5 are fixedly installed on both sides of the partition plate 2. The top of the bottom plate 1 is provided with an alignment plug-in groove 6 that is adapted to the alignment plug-in block 5. An upper locking bolt 7 is provided between the alignment plug-in block 5 and the bottom plate 1. Chamfered portions 11 are provided at the four corners of the molding ring 4. A notch 8 and a vacuum forming hole 9 are provided on the outer side of the molding ring 4. Lower locking bolts 10 arranged in a ring are provided between the partition plate 2 and the molding ring 4.
[0030] The cross-section of the forming ring 4 is composed of an inclined section 401, a first horizontal section 402, a first vertical section 403, a second horizontal section 404, and a second vertical section 405, forming a rectangular frame with an open top. The included angle between the inclined section 401 and the first horizontal section 402 is in the range of 90° to 110°.
[0031] Example 2:
[0032] like Figure 2-6 As shown, as an improvement to the previous embodiment, in order to facilitate the assembly of the partition 2 and the forming ring 4, and the assembly of the base plate 1 and the partition 2.
[0033] Specifically, the alignment plug-in blocks 5 and alignment plug-in slots 6 are each provided with four identical sets, and the four sets of alignment plug-in blocks 5 and alignment plug-in slots 6 are symmetrically distributed around the vertical center line of the partition 2. The advantage is that the design of the alignment plug-in blocks 5 and alignment plug-in slots 6 makes it easy to assemble the partition 2 on the top of the base plate 1, which can play a role in positioning and installation, and reduce the difficulty of operation.
[0034] Specifically, both the top plate 3 and the forming ring 4 are tightly connected to the partition plate 2. The outer edge of the forming ring 4 and the outer edge of the partition plate 2 are on the same plane. The lower locking bolts 10 are evenly spaced around the edge of the forming ring 4, and the lower locking bolts 10 pass through the partition plate 2 and extend into the interior of the forming ring 4. The advantage is that the lower locking bolts 10 can be used to install the forming ring 4 on the top of the partition plate 2, and the lower locking bolts 10, which are evenly spaced along the edge of the forming ring 4, can also ensure that the partition plate 2 will not separate from the forming ring 4.
[0035] Example 3:
[0036] like Figure 2-6 As shown, as an improvement to the previous embodiment, in order to further facilitate the thermoforming of PVC film.
[0037] Specifically, the vacuum forming hole 9 penetrates through the forming ring 4, the partition 2, and the base plate 1, and the notch 8 is designed with equal spacing along the edge of the forming ring 4. The advantage is that the design of the vacuum forming hole 9 penetrating through the forming ring 4, the partition 2, and the base plate 1 allows for better vacuum forming of the PVC film.
[0038] Example 4:
[0039] like Figure 2-6 As shown, as an improvement on the previous embodiment, in order to reduce the cost of use.
[0040] Specifically, the base plate 1, partition plate 2, top plate 3, and forming ring 4 are all made of wood. The advantage is that using wood for the base plate 1, partition plate 2, top plate 3, and forming ring 4 reduces usage costs.
[0041] Working principle: Before use, the operator first uses the lower locking bolt 10 to install the forming ring 4 on the top of the partition 2. After the partition 2 and the forming ring 4 are installed, the alignment plug 5 on the outside of the partition 2 is aligned with the alignment plug groove 6 and inserted until the alignment plug 5 is completely inserted into the alignment plug groove 6. Then, the upper locking bolt 7 is used to lock it, thus completing the assembly of the partition 2 and the base plate 1. The operation is simple and the assembly is convenient. When performing vacuum forming, the operator first places the PVC film on the upper side of the forming fixture, and then puts the forming fixture into the vacuum forming machine to perform the vacuum forming operation.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular forming fixture for PVC film vacuum forming, comprising a bottom plate (1), a partition plate (2), and a top plate (3) arranged sequentially from bottom to top, and a forming ring (4) fixedly connected along the edge of the top plate (3), characterized in that: Alignment plug-in blocks (5) are fixedly installed on both sides of the partition (2). Alignment plug-in grooves (6) adapted to the alignment plug-in blocks (5) are opened at the top of the bottom plate (1). Upper locking bolts (7) are provided between the alignment plug-in blocks (5) and the bottom plate (1). Chamfered portions (11) are provided at the four corners of the forming ring (4). Notches (8) and vacuum forming holes (9) are opened on the outer side of the forming ring (4). Lower locking bolts (10) distributed in a ring are provided between the partition (2) and the forming ring (4). The alignment plug-in block (5) and the alignment plug-in slot (6) are provided with four identical sets, and the four sets of alignment plug-in blocks (5) and alignment plug-in slots (6) are symmetrically distributed around the vertical center line of the partition (2).
2. The combined forming fixture for PVC film vacuum forming according to claim 1, characterized in that: The cross section of the forming ring (4) is composed of an inclined section (401), a first horizontal section (402), a first vertical section (403), a second horizontal section (404), and a second vertical section (405), forming a rectangular frame with an open top. The angle between the inclined section (401) and the first horizontal section (402) is in the range of 90° to 110°.
3. The combined forming fixture for PVC film vacuum forming according to claim 1, characterized in that: The top plate (3) and the forming ring (4) are both in close contact with the partition (2). The outer edge of the forming ring (4) and the outer edge of the partition (2) are located on the same plane. The lower locking bolt (10) is arranged at equal intervals around the edge of the forming ring (4). The lower locking bolt (10) passes through the partition (2) and extends into the interior of the forming ring (4).
4. The combined forming fixture for PVC film vacuum forming according to claim 1, characterized in that: The vacuum forming hole (9) passes through the forming ring (4), the partition (2) and the bottom plate (1), and the notch (8) is designed with equal spacing along the edge of the forming ring (4).
5. The combined forming fixture for PVC film vacuum forming according to claim 1, characterized in that: The bottom plate (1), partition plate (2), top plate (3) and forming ring (4) are all made of wood.