Multi-specification refrigerator drawer automatic assembly equipment

Abstract

The utility model relates to the field of refrigerator processing discloses the automatic assembly equipment of adaptable multi -specification refrigerator drawer, including mounting bracket, be equipped with gas shears mechanism, the positioning mounting mechanism for placing refrigerator drawer and the supporting mechanism of supporting refrigerator drawer on mounting bracket, the positioning mounting mechanism includes the bottom limit block of the bottom surface of refrigerator drawer spacing and the two side limit blocks of the spacing of the both sides of connecting opening end, the opposite surface of two side limit blocks is equipped with the limit slot of the joint of connecting opening end, gas shears mechanism sets up in bottom limit block bottom for the shearing of water mouth, still include the gas shears of sliding setting on gas shears mechanism, the supporting mechanism includes the sliding plate of sliding setting on support frame, to provide a kind of equipment that can carry out water mouth shearing to multiple specifications refrigerator drawer and the good shearing surface quality.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator processing, specifically to an automatic assembly equipment for refrigerator drawers that can adapt to multiple specifications. Background Technology

[0002] As a common household appliance, refrigerators are becoming increasingly diverse and sophisticated in their internal structure and functional design. Currently, refrigerator drawers are typically manufactured using injection molding, producing the drawer and handle separately. These components then undergo pre-processing. Each drawer includes an opening for placing items, and the side adjacent to this opening serves as the connection point for the handle. This process includes removing sprue marks before the handle is manually assembled to the drawer frame. The entire process relies heavily on manual labor in some steps, resulting in low assembly efficiency, high labor costs, and high labor intensity. Especially for refrigerator drawer frames with large structural dimensions or weak rigidity, the product deformation during assembly can easily lead to difficulties in positioning and assembly. Often, operators need to assist in assembly by pressing, patting, etc., which not only increases labor intensity but also affects assembly quality and consistency. Existing technology, patent application CN104369206A, discloses an automated pick-and-place and shearing device for regulating valve sprue. This device is equipped with a pair of sprue positioning blocks driven by upper and lower positioning cylinders, a positioning C-shaped sleeve for placing the product, and pneumatic scissors. The sprue is sheared by driving the scissors. However, the above patent does not provide positioning and fixing for refrigerator drawer sprue shearing. If directly applied to refrigerator drawer sprue shearing, it is easy to cause problems such as inaccurate sprue shearing and uneven sprue shearing due to poor fixing of the drawer structure during the fixing process. Utility Model Content

[0003] The present invention aims to provide an automatic assembly equipment for refrigerator drawers of various specifications that can be adapted to different sizes, so as to provide a device that can cut the sprue of refrigerator drawers of various sizes and produce a high-quality cut surface.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: An automatic assembly equipment for refrigerator drawers of various specifications, including a mounting frame, a pneumatic shear mechanism, a positioning mounting mechanism for placing the refrigerator drawers, and a support mechanism for supporting the refrigerator drawers. The positioning mounting mechanism includes a bottom limiting block for limiting the bottom surface of the refrigerator drawer and two side limiting blocks for limiting the two sides of the connecting opening end. The two side limiting blocks are symmetrically fixed on the left and right sides of the top surface of the mounting frame. The opposing surfaces of the two side limiting blocks are provided with limiting grooves that engage with the connecting opening end. The pneumatic shear mechanism is located at the bottom of the bottom limiting block for shearing the sprue, and also includes a pneumatic shear slidably mounted on the pneumatic shear mechanism. The support mechanism includes a sliding plate slidably mounted on the support frame. The sliding plate has an extension end facing the bottom limiting block. This extension end can be displaced along the depth direction of the refrigerator drawer to the internal cavity of the refrigerator drawer. The extension end is telescopically equipped with: The first push plate is used to push the middle of the bottom surface of the refrigerator drawer into contact with the air shear mechanism; The second push plate is used to push the bottom of the refrigerator drawer to abut against the bottom limit block; The two side cylinders are used to push the two sides of the refrigerator drawer to abut against the corresponding side limit blocks.

[0005] The beneficial effects of this plan are: With the above configuration, when performing sprue shearing, the extended end of the sliding plate can enter the refrigerator drawer. The first push plate, the second push plate, and the two side push cylinders respectively press against the middle, bottom, and side surfaces of the refrigerator drawer, achieving stable support and limiting of the drawer in multiple directions. This prevents the drawer from deforming due to uneven force during the shearing process, and prevents the deformation of the refrigerator drawer surface from affecting the shearing quality at the sprue. This ensures that the sprue shearing position is accurate and the shearing surface is flat during sprue shearing.

[0006] Furthermore, through the aforementioned positioning mechanism, the bottom surfaces of refrigerator drawers of different sizes are pushed to abut against the bottom limit block. Simultaneously, by sliding and adjusting the position of the air shear, after the push plate and limit block are positioned, the sprue position of each drawer is aligned with the air shear blade, enabling shearing of the sprue of different drawer sizes. This achieves universal shearing for various drawer sizes, improving the equipment's applicability and production flexibility. The positioning and installation mechanism precisely positions the drawer through the limiting grooves of the bottom and side limit blocks. Combined with the multi-directional pushing of the support mechanism, this keeps the drawer stable during air shearing, effectively reducing manual operation steps and improving assembly efficiency.

[0007] Preferably, as an improvement, a first driving cylinder and a second driving cylinder are provided to drive the first push plate and the second push plate respectively. The first driving cylinder is disposed on the surface of the extension end opposite to the air shear mechanism. The first push plate is fixed to the output end of the first driving cylinder. The second driving cylinder is inclinedly disposed on the sliding plate and the angle between the extension direction of the second driving cylinder and the sliding plate is an acute angle. The second push plate is fixed to the output end of the second driving cylinder. The two side push cylinders are disposed on the left and right sides of the sliding direction of the extension end.

[0008] The beneficial effects are as follows: The first and second drive cylinders independently control the first and second push plates, respectively, allowing the two push plates to extend and retract independently according to the actual position and shape of the refrigerator drawer. The first drive cylinder is located on the surface opposite to the air shear mechanism at the extension end, directly pushing the center of the drawer bottom to abut against the air shear mechanism, achieving precise alignment and simultaneous abutment of the air shear and sprue shear to provide support for the shearing. The second drive cylinder is inclined, and its extension direction forms an acute angle with the sliding plate, which is beneficial for pushing the drawer bottom to abut against the bottom limit block, further pressing the drawer and improving positioning stability. The two push cylinders are distributed on the left and right sides of the sliding direction at the extension end, simultaneously pushing the two sides of the drawer to abut against the side limit blocks, achieving multi-faceted support and clamping, and preventing the drawer from deforming during the shearing process. The coordinated action of multiple cylinders can complete the clamping action simultaneously or sequentially in different directions, reducing positioning and clamping time, improving work efficiency, and adapting to the positioning needs of refrigerator drawers of different sizes.

[0009] Preferably, as an improvement, the length of the second push block is less than the width of the bottom surface of the refrigerator drawer, the cross-section of the second push block in the length direction is a right triangle, and the right-angled side of the second push block can contact the bottom surface of the refrigerator drawer.

[0010] The beneficial effects are as follows: the right-angled edge of the second push block can contact the bottom surface of the refrigerator drawer, and the right-angled edge stably abuts against the bottom surface, which helps to accurately push the drawer to the bottom limit block. The length of the second push block is less than the width of the bottom surface of the drawer, which can avoid the two sides of the drawer during the clamping process and prevent interference with the side surfaces or other parts.

[0011] Preferably, as an improvement, the pneumatic shear mechanism includes a pneumatic shear position cylinder, a pneumatic shear mounting base, and a pneumatic shear guide rail. The pneumatic shear is obliquely fixed on the pneumatic shear mounting base. The pneumatic shear position cylinder and the pneumatic shear guide rail are fixedly mounted on the side of the mounting frame away from the positioning mounting mechanism. The pneumatic shear mounting base is connected to the output end of the pneumatic shear position cylinder and slides with the pneumatic shear guide rail. The pneumatic shear guide rail is set perpendicular to the ground. The mechanism also includes a pneumatic shear control system for adjusting the height of the pneumatic shear. The pneumatic shear control system is electrically connected to the pneumatic shear position cylinder.

[0012] The beneficial effects are as follows: By extending and retracting the air shear position cylinder in the vertical direction, the air shear can be adjusted according to the position of the sprue at different heights, achieving precise cutting of sprue openings of refrigerator drawers of different specifications and structures. The air shear is installed at an angle on the air shear mounting base, which can form a favorable cutting angle, reduce cutting resistance, and improve the flatness and smoothness of the cut surface. At the same time, the air shear mounting base and the vertically set air shear guide rail slide together to ensure the stability of the air shear position during up and down movement, avoiding inaccurate cutting position caused by vibration or offset.

[0013] Preferably, as an improvement, it also includes a handle mounting device, which includes a handle positioning mechanism. The handle positioning mechanism includes a first mounting seat slidably disposed on the upper surface of the sliding plate. The top of the first mounting seat is provided with a fourth push plate. Both the left and right ends of the fourth push plate along the sliding direction are provided with handle pushing cylinders for pushing the handle to engage with the connecting opening end. It also includes a pressing frame disposed above the limiting block. The pressing frame is arrayed with multiple handle pressing cylinders for pressing the handle and fixing the connecting opening end.

[0014] The beneficial effects are as follows: by sliding the first push plate and simultaneously pushing the handle with the connecting opening end with the handle push cylinder, the assembly position of the handle and the connecting opening end is accurately ensured. With the help of multiple handle pressing cylinders set on the pressing frame, pressing force can be applied at multiple positions at the same time, so that the handle and the connecting opening end are evenly stressed at the moment of assembly, ensuring that each handle is firmly locked to the drawer and in a uniform position, replacing manual pressing and pushing, reducing labor intensity and improving assembly efficiency.

[0015] Preferably, as an improvement, the upper surface of the sliding plate is provided with a first pushing cylinder for pushing the first mounting seat to slide back and forth, the pushing cylinder is provided with first sliding guide rails on the left and right sides, and the lower surface of the first mounting seat is provided with first sliding seats that cooperate with the sliding guide rails on both sides, and the sliding direction of the first sliding seats is the same as that of the sliding plate.

[0016] The beneficial effects are as follows: the first push cylinder directly drives the first mounting seat to reciprocate along the direction of the sliding plate, with fast action response and precise position control. At the same time, the first sliding guide rail cooperates with the first sliding seat to provide stable linear guidance during the reciprocating motion of the first mounting seat, preventing lateral swaying or deviation.

[0017] Preferably, as an improvement, the mounting frame is provided with a support frame for supporting the sliding plate. The top and bottom of the support frame are equipped with a support seat and a second push cylinder for driving the sliding plate to slide back and forth. The lower surface of the sliding seat is provided with a second sliding guide rail. The surface of the support seat is provided with a second sliding seat that cooperates with the second sliding guide rail. The output end of the second push cylinder is fixedly connected to the lower surface of the sliding plate.

[0018] The beneficial effects are as follows: the support frame and the support seat together form a stable installation foundation, which can effectively bear the weight of the sliding plate and its upper mechanism, preventing shaking or deformation during operation. At the same time, the second push cylinder directly drives the sliding plate to slide back and forth in a straight line along the guide rail, which, together with the second sliding guide rail and the second sliding seat, achieves precise linear guidance and ensures stable motion trajectory.

[0019] Preferably, as an improvement, it also includes a cover that fits onto the surface of the positioning and mounting mechanism.

[0020] The beneficial effect is to prevent dust from entering the surface of the positioning and installation mechanism, thereby affecting the operational stability of the internal structure.

[0021] Preferably, as an improvement, the number of handle-pressing cylinders is three.

[0022] Preferably, as an improvement, the mounting bracket is equipped with casters at all four corners of its bottom.

[0023] The beneficial effects are: the above settings facilitate the transfer and installation of the mounting frame, making it adaptable to more work scenarios. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model; Figure 3 This is a side view of the internal structure of an embodiment of the present utility model; Figure 4 This is a side view of the bottom of the sliding plate according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the refrigerator drawer structure according to an embodiment of the present utility model.

[0025] The reference numerals in the accompanying drawings include: mounting bracket 1, bottom limit block 2, side limit block 3, limit groove 4, air shear 5, sliding plate 6, first push plate 7, second push plate 8, side push cylinder 9, second drive cylinder 10, cover 11, caster wheel 12, air shear position cylinder 13, air shear mounting base 14, first mounting base 15, fourth push plate 16, handle push cylinder 17, pressing frame 18, handle pressing cylinder 19, first push cylinder 20, first sliding guide rail 21, first sliding seat 22, support frame 23, second push cylinder 24, support base 25, placement opening 26, connecting opening end 27, handle 28, refrigerator drawer 29. Detailed Implementation

[0026] The following detailed description is provided through specific implementation methods and examples: The preferred embodiments of this utility model are basically as shown in the appendix. Figure 1-5 As shown, Figure 1 and Figure 2 The illustrated automatic assembly equipment for refrigerator drawers adaptable to various sizes includes mounting bracket 1, such as... Figure 5 As shown, each refrigerator drawer 29 includes a placement opening 26 for placing items. The side adjacent to the placement opening 26 is a connection opening end 27 that connects to the handle 28. The mounting bracket 1 is equipped with a pneumatic shear mechanism, a positioning mounting mechanism for placing the refrigerator drawer 29, and a support mechanism for supporting the refrigerator drawer 29. The positioning mounting mechanism includes a bottom limiting block 2 that limits the bottom surface of the refrigerator drawer 29 and two side limiting blocks 3 that limit the two sides of the connection opening end 27. The two side limiting blocks 3 are symmetrically fixed on the left and right sides of the top surface of the mounting bracket 1. The opposing surfaces of the two side limiting blocks 3 are provided with limiting grooves 4 that engage with the connection opening end 27. The air shear mechanism is located at the bottom of the bottom limit block 2 for shearing the sprue, and also includes an air shear 5 slidably mounted on the air shear mechanism; the support mechanism includes a sliding plate 6 slidably mounted on the support frame 23, the sliding plate 6 having an extension end toward the bottom limit block 2, the extension end being movable along the depth direction of the refrigerator drawer 29 to the internal cavity of the refrigerator drawer 29, the extension end being provided with: a first push plate 7, for pushing the middle of the bottom surface of the refrigerator drawer 29 to abut against the air shear mechanism; a second push plate 8, for pushing the bottom surface of the refrigerator drawer 29 to abut against the bottom limit block 2; and two side push cylinders 9, for pushing the two sides of the refrigerator drawer 29 to abut against the corresponding side limit blocks 3 respectively. There are many mechanisms used to push the first push plate 7, the second push plate 8 and the side push cylinder 9, such as electric telescopic rods. In order to make the structure simple, reliable and easy to assemble, the preferred embodiment of this utility model also includes a shell cover 11 covering the surface of the positioning and mounting mechanism to prevent dust from entering the surface of the positioning and mounting mechanism and thus affecting the operational stability of the internal structure; the four corners of the bottom of the mounting frame 1 are provided with casters 12, which can facilitate the transfer of the mounting frame 1 and adapt to more working scenarios.

[0027] With the above settings, when performing sprue shearing, the extended end of the sliding plate 6 can enter the interior of the refrigerator drawer 29. The first push plate 7, the second push plate 8, and the two side push cylinders 9 respectively press against the middle, bottom, and side surfaces of the refrigerator drawer 29, achieving stable support and limiting of the drawer in multiple directions. This prevents the drawer from deforming due to uneven force during the shearing process, and prevents the deformation of the refrigerator drawer 29 surface from affecting the shearing quality at the sprue. This ensures that the sprue shearing position is accurate and the shearing surface is flat when performing sprue shearing.

[0028] Furthermore, through the aforementioned positioning setup, the bottom surfaces of refrigerator drawers 29 of different specifications will be pushed to abut against the bottom limit block 2. Simultaneously, by sliding and adjusting the position of the air shear 5, after the push plate and limit block are positioned, the sprue position of refrigerator drawers 29 of different specifications can be aligned with the blade of the air shear 5, enabling the cutting of sprues for refrigerator drawers 29 of different specifications. This achieves universal cutting for various specifications of refrigerator drawers 29, improving the applicability and production flexibility of the equipment. The positioning and installation mechanism precisely positions the drawers through the limiting grooves 4 of the bottom limit block 2 and the two side limit blocks 3. Combined with the multi-directional pushing of the support mechanism, the drawers remain stable during the cutting process of the air shear 5, effectively reducing manual auxiliary operation steps and improving assembly efficiency.

[0029] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this utility model includes a first driving cylinder and a second driving cylinder 10 for driving a first push plate 7 and a second push plate 8, respectively. The first driving cylinder is located on the surface of the extended end opposite to the pneumatic shear mechanism. The first push plate 7 is fixed to the output end of the first driving cylinder. The second driving cylinder 10 is inclinedly arranged on the sliding plate 6, and the angle between the extension direction of the second driving cylinder 10 and the sliding plate 6 is an acute angle. The second push plate 8 is fixed to the output end of the second driving cylinder 10. The two side push cylinders 9 are arranged on the left and right sides of the sliding direction of the extended end. The first drive cylinder and the second drive cylinder 10 independently control the first push plate 7 and the second push plate 8, respectively, so that the two push plates can extend and retract independently according to the actual position and shape of the refrigerator drawer 29. The first drive cylinder is located on the surface opposite to the air shear mechanism at the extension end, and can directly push the middle of the bottom surface of the drawer to abut against the air shear mechanism, so as to achieve precise alignment of the air shear 5 and the sprue shear and provide support for shearing. The second drive cylinder 10 is arranged at an angle, and its extension direction forms an acute angle with the sliding plate 6, which is conducive to pushing the bottom surface of the drawer to abut against the bottom limit block 2, further pressing the drawer and improving the positioning stability. The two push cylinders 9 are distributed on the left and right sides of the sliding direction at the extension end, and can simultaneously push the two sides of the drawer to abut against the side limit block 3, so as to achieve multi-face support and clamping, and prevent the drawer from deforming during the shearing process. The multiple cylinders work together to complete the clamping action simultaneously or sequentially in different directions, reduce the positioning and clamping time, improve work efficiency, and adapt to the positioning requirements of refrigerator drawers 29 of different specifications.

[0030] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention is as follows: the length of the second push block is less than the width of the bottom surface of the refrigerator drawer 29, the cross-section of the second push block along its length is a right-angled triangle, and the right-angled side of the second push block can contact the bottom surface of the refrigerator drawer 29. The right-angled side stably abuts against the bottom surface, which helps to accurately push the drawer to the bottom limit block 2. The length of the second push block is less than the width of the bottom surface of the drawer, which can avoid the two sides of the drawer during the clamping process and prevent interference with the side surfaces or other components.

[0031] like Figure 3 As shown, to make the structure simple, reliable, and easy to assemble, the preferred embodiment of this utility model is as follows: the air shear mechanism includes an air shear 5 position cylinder 13, an air shear 5 mounting base 14, and an air shear guide rail. The air shear 5 is obliquely fixed on the air shear 5 mounting base 14. The air shear 5 position cylinder 13 and the air shear guide rail are fixedly set on the side of the mounting frame 1 away from the positioning mounting mechanism. The air shear 5 mounting base 14 is connected to the output end of the air shear 5 position cylinder 13 and slides with the air shear guide rail. The air shear guide rail is set perpendicular to the ground. It also includes an air shear 5 control system for adjusting the height of the air shear 5. The air shear 5 control system is electrically connected to the air shear 5 position cylinder 13. By extending and retracting the cylinder 13 in the vertical direction, the air shear 5 can be adjusted according to the position of the sprue at different heights, enabling precise cutting of the sprue of refrigerator drawers 29 of different specifications and structures. The air shear 5 is installed at an angle on the air shear 5 mounting base 14, which can form a favorable cutting angle, reduce cutting resistance, and improve the flatness and smoothness of the cutting surface. At the same time, the air shear 5 mounting base 14 slides with the vertically set air shear guide rail, which can ensure the stability of the air shear 5 during up and down movement and avoid inaccurate cutting position caused by shaking or deviation.

[0032] To ensure a simple, reliable structure and ease of assembly, the preferred embodiment of this invention is as follows: Figure 2 As shown, in order to install as Figure 5The handle 28 shown also includes a handle mounting device, which includes a handle positioning mechanism. The handle positioning mechanism includes a first mounting seat 15 slidably disposed on the upper surface of the sliding plate 6. A fourth push plate 16 is provided on the top of the first mounting seat 15. Both the left and right ends of the fourth push plate 16 along the sliding direction are provided with handle 28 push cylinders 17 for pushing the handle 28 to engage with the connecting opening end 27. It also includes a pressing frame 18 disposed above the limiting block. Multiple handle 28 pressing cylinders 19 are arrayed on the pressing frame 18 for pressing the handle 28 and fixing the connecting opening end 27. The first push plate 7 slides while the handle 28 pushes the cylinder 17 to engage the handle 28 with the connecting opening end 27, ensuring accurate assembly of the handle 28 with the connecting opening end 27. With the help of multiple handle 28 pressing cylinders 19 set on the pressing frame 18, pressing force can be applied at multiple positions at the same time, so that the handle 28 and the connecting opening end 27 are evenly stressed at the moment of assembly, ensuring that each handle 28 is firmly engaged with the drawer and in a uniform position, replacing manual pressing and pushing, reducing labor intensity and improving assembly efficiency. The number of handle 28 pressing cylinders 19 is 3.

[0033] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention features a first pushing cylinder 20 on the upper surface of the sliding plate 6 for reciprocating sliding of the first mounting base 15. First sliding guide rails 21 are located on both sides of the pushing cylinder. First sliding seats 22, which cooperate with the sliding guide rails, are located on both sides of the lower surface of the first mounting base 15. The sliding direction of the first sliding seats 22 is the same as that of the sliding plate 6. The first pushing cylinder 20 directly drives the first mounting base 15 to reciprocate along the direction of the sliding plate 6, resulting in fast response and precise position control. Simultaneously, the cooperation between the first sliding guide rails 21 and the first sliding seats 22 provides stable linear guidance during the reciprocating motion of the first mounting base 15, preventing lateral swaying or deviation.

[0034] like Figure 4 As shown, to ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention is as follows: The mounting frame 1 contains a support frame 23 for supporting the sliding plate 6. The support frame 23 has a support seat 25 at its top and bottom, and a second push cylinder 24 for driving the sliding plate 6 to slide back and forth. A second sliding guide rail is provided on the lower surface of the sliding seat, and a second sliding seat that cooperates with the second sliding guide rail is provided on the surface of the support seat 25. The output end of the second push cylinder 24 is fixedly connected to the lower surface of the sliding plate 6. The support frame 23 and the support seat 25 together form a stable mounting base, effectively bearing the weight of the sliding plate 6 and its upper mechanism, preventing shaking or deformation during operation. Simultaneously, the second push cylinder 24 directly drives the sliding plate 6 to slide linearly back and forth along the guide rail, achieving precise linear guidance in conjunction with the second sliding guide rail and the second sliding seat, ensuring a stable motion trajectory.

[0035] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic assembly equipment for refrigerator drawers of various specifications, including a mounting bracket (1), characterized in that: The mounting bracket (1) is provided with an air shear mechanism, a positioning mounting mechanism for placing the refrigerator drawer (29), and a support mechanism for supporting the interior of the refrigerator drawer (29). The positioning mounting mechanism includes a bottom limiting block (2) on the mounting bracket (1) for limiting the bottom surface of the refrigerator drawer (29) and two side limiting blocks (3) for limiting the two sides of the connecting opening end (27). The two side limiting blocks (3) are symmetrically fixed on the left and right sides of the top surface of the mounting bracket (1). The opposite surfaces of the two side limiting blocks (3) are provided with limiting grooves (4) that engage with the connecting opening end (27). The air shear mechanism is provided at the bottom of the bottom limiting block (2) for shearing the sprue. It also includes an air shear (5) that is slidably mounted on the air shear mechanism. The support mechanism includes a sliding plate (6) that is slidably mounted on the support bracket (23). The sliding plate (6) has an extension end facing the bottom limiting block (2). The extension end can be displaced along the depth direction of the refrigerator drawer (29) to the interior cavity of the refrigerator drawer (29). The extension end is provided with telescopic features: The first push plate (7) is used to push the bottom center of the refrigerator drawer (29) to abut against the air shear mechanism; The second push plate (8) is used to push the bottom surface of the refrigerator drawer (29) to abut against the bottom limit block (2); The two side push cylinders (9) are used to push the two sides of the refrigerator drawer (29) to abut against the corresponding side limit blocks (3).

2. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications as described in claim 1, characterized in that: A first driving cylinder and a second driving cylinder (10) are provided to drive the first push plate (7) and the second push plate (8) respectively. The first driving cylinder is set on the surface of the extension end opposite to the air shear mechanism. The first push plate (7) is fixed to the output end of the first driving cylinder. The second driving cylinder (10) is inclined on the sliding plate (6) and the angle between the extension direction of the second driving cylinder (10) and the sliding plate (6) is acute. The second push plate (8) is fixed to the output end of the second driving cylinder (10). The two side push cylinders (9) are set on the left and right sides of the sliding direction of the extension end.

3. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 2, characterized in that: The length of the second push block is less than the width of the bottom surface of the refrigerator drawer (29). The cross section of the second push block in the length direction is a right triangle. The right-angled side of the second push block can contact the bottom surface of the refrigerator drawer (29).

4. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 1, characterized in that: The pneumatic shear mechanism includes a pneumatic shear position cylinder (13), a pneumatic shear mounting base (14), and a pneumatic shear guide rail. The pneumatic shear (5) is fixedly mounted on the pneumatic shear mounting base (14) at an angle. The pneumatic shear position cylinder (13) and the pneumatic shear guide rail are fixedly mounted on the side of the mounting frame (1) away from the positioning mounting mechanism. The pneumatic shear mounting base (14) is connected to the output end of the pneumatic shear position cylinder (13) and slides with the pneumatic shear guide rail. The pneumatic shear guide rail is set perpendicular to the ground. The pneumatic shear (5) control system is also included to adjust the height of the pneumatic shear (5). The pneumatic shear (5) control system is electrically connected to the pneumatic shear position cylinder (13).

5. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 1, characterized in that: It also includes a handle mounting device, which includes a handle positioning mechanism. The handle positioning mechanism includes a first mounting seat (15) that is slidably disposed on the upper surface of the sliding plate (6). A fourth push plate (16) is provided on the top of the first mounting seat (15). The left and right ends of the fourth push plate (16) along the sliding direction are provided with handle pushing cylinders (17) for pushing the handle (28) to engage with the connecting opening end (27). It also includes a pressing frame (18) disposed above the limiting block. Multiple handle pressing cylinders (19) for pressing the handle (28) and fixing the connecting opening end (27) are arrayed on the pressing frame (18).

6. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 5, characterized in that: The upper surface of the sliding plate (6) is provided with a first push cylinder (20) for pushing the first mounting seat (15) to slide back and forth. The left and right sides of the push cylinder are provided with first sliding guide rails (21). The lower surface of the first mounting seat (15) is provided with first sliding seats (22) that cooperate with the sliding guide rails. The sliding direction of the first sliding seat (22) is the same as that of the sliding plate (6).

7. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 6, characterized in that: The mounting bracket (1) is provided with a support frame (23) for supporting the sliding plate (6). The support frame (23) is equipped with a support seat (25) at the top and bottom and a second push cylinder (24) for driving the sliding plate (6) to slide back and forth. The lower surface of the sliding seat is provided with a second sliding guide rail. The surface of the support seat (25) is provided with a second sliding seat that cooperates with the second sliding guide rail. The output end of the second push cylinder (24) is fixedly connected to the lower surface of the sliding plate (6).

8. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 1, characterized in that: It also includes a cover (11) that fits onto the surface of the positioning and mounting mechanism.

9. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 1, characterized in that: The number of handle-pressing cylinders (19) is 3.

10. The automatic assembly equipment for refrigerator drawers adaptable to multiple specifications according to claim 1, characterized in that: The mounting bracket (1) has casters (12) at all four corners of its bottom.

Images