Automatic closing machine for loudspeakers

Abstract

The present invention relates to the field of loudspeakers, and provides an automatic loudspeaker tray closing machine, including a material unloading slide rail unit, a feeding conveyor belt, a first transfer mechanism, a second transfer mechanism and an auxiliary material unloading mechanism, a material feeding tray is arranged on the feeding conveyor belt, a variable distance tray is arranged between the material unloading slide rail unit and the feeding conveyor belt; a material unloading tray is arranged on the material unloading slide rail unit; a transverse slide rail, a first carrier block and a transverse power module are arranged on the variable distance tray; the first transfer mechanism is provided with a first support frame, the second transfer mechanism is provided with a second support frame that elevates itself, and the second transfer mechanism is reciprocatingly arranged between the variable distance tray and the material unloading slide rail unit; the second transfer mechanism is used to transfer the product from the variable distance tray to the material unloading tray. By using the variable distance tray, after the first unloading to the variable distance tray is performed by the first transfer mechanism, the size of the variable distance tray is changed to adapt to the specifications of the material unloading tray, so as to achieve the purpose of efficient production.

Description

Technical Field

[0001] The invention relates to the field of loudspeakers, and in particular to an automatic loudspeaker closing machine. Background Art

[0002] With the development of society, the process of mechanical automation has become more common, greatly improving the efficiency and quality of industrial production. This has also led to the use of a variety of non-standard equipment. One of the problems is that there are differences in the size of the tray or the number of products placed. For example, during the assembly process of the previous equipment, the tray used is a tray of specification No. 1, and when the product is packaged and assembled, the model of the box needs to be determined according to customer needs or transportation requirements. After unloading, it is necessary to re-discharge it through trays of different specifications, resulting in the need for manual unloading, and the product efficiency is correspondingly reduced. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic speaker tray closing machine, aiming to improve the problem that the trays on the existing equipment are not suitable, resulting in manual unloading and low production efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solution: a loudspeaker automatic closing machine, comprising:

[0005] Unloading slide rail unit;

[0006] A feeding conveyor belt is arranged at a distance from the unloading slide rail unit, a feeding tray is arranged on the feeding conveyor belt, and a variable distance tray is arranged between the unloading slide rail unit and the feeding conveyor belt; a unloading tray is arranged on the unloading slide rail unit;

[0007] The variable-distance carrier is provided with a transverse slide rail, a plurality of first carrier blocks provided on the transverse slide rail, and a transverse power module for driving the plurality of first carrier blocks to merge or separate at intervals;

[0008] A first transfer mechanism, which is provided with a first support frame that elevates itself, the first transfer mechanism is reciprocatingly arranged between the variable-distance carrier and the feeding conveyor, and the first transfer mechanism is used to transfer the product from the feeding carrier to the variable-distance carrier;

[0009] A second transfer mechanism is provided with a second support frame which elevates itself, and the second transfer mechanism is reciprocatingly arranged between the variable-distance carrier and the unloading slide rail unit; the second transfer mechanism is used to transfer the product from the variable-distance carrier to the unloading carrier;

[0010] And an auxiliary unloading mechanism, which is arranged between the unloading slide rail unit and the feeding conveyor belt and forms an independent unloading assembly line, and the auxiliary unloading mechanism is sequentially provided with a first auxiliary transfer mechanism, an auxiliary variable-pitch carrier, a second auxiliary transfer mechanism and an auxiliary unloading slide rail unit along the assembly line. Preferably, the first transfer mechanism includes a clamping unit and a power unit driving the clamping unit to move back and forth between the variable-pitch carrier and the feeding conveyor belt, the clamping unit includes a longitudinal slide rail, a plurality of second carrier blocks slidingly arranged on the longitudinal slide rail, a longitudinal power module driving the plurality of second carrier blocks to merge or separate at intervals, and a plurality of transfer members arranged on the slider, the transfer member is used to transfer the product from the feeding carrier plate to the variable-pitch carrier plate.

[0011] Preferably, the transfer member is a vacuum suction cup, a magnetic suction member or a pneumatic clamp.

[0012] Preferably, a first limit strip is arranged between two adjacent first carrier blocks, one end of the first limit strip is provided with a first fixing hole locked on one of the first carrier blocks, the other end of the first limit strip is provided with a first bar hole, and the other first carrier block is provided with a first limit pin that passes through the first bar hole for limiting the position.

[0013] Preferably, a second limit strip is arranged between two adjacent second carrier blocks, a second fixing hole is arranged at one end of the second limit strip and is locked on one of the second carrier blocks, a second strip hole is arranged at the other end of the second limit strip, and a second limit pin is arranged on the other second carrier block and passes through the second strip hole for limiting the position.

[0014] Preferably, the auxiliary variable-pitch carrier is arranged between the auxiliary unloading slide rail unit and the feeding conveyor belt, the first auxiliary transfer mechanism is reciprocatingly arranged between the auxiliary variable-pitch carrier and the feeding conveyor belt, the second auxiliary transfer mechanism is reciprocatingly arranged between the auxiliary variable-pitch carrier and the auxiliary unloading slide rail unit, and the first auxiliary transfer mechanism is arranged between the first transfer mechanism and the end of the feeding conveyor belt;

[0015] The first auxiliary transfer mechanism has the same structural setting as the first transfer mechanism; the auxiliary variable-pitch carrier has the same structural setting as the variable-pitch carrier, the second auxiliary transfer mechanism has the same structural setting as the second transfer mechanism, and the auxiliary unloading slide rail unit has the same structural setting as the unloading slide rail unit.

[0016] Preferably, a first material storage rack is provided at the end of the unloading slide rail unit, and a second material storage rack is provided at the end of the auxiliary unloading slide rail unit.

[0017] Preferably, the unloading carrier plate includes a fixed block arranged on the unloading slide rail unit, a loading cylinder arranged on the fixed block, and a placement plate arranged on the output shaft of the loading cylinder, and the unloading carrier plate is arranged on the placement plate.

[0018] Preferably, the bottom of the first material storage rack is provided with two symmetrical and upwardly turned limit baffles and a plurality of stop shafts for resisting and limiting the limit baffles in a horizontal position;

[0019] The distance between the two limit baffles is greater than the width of the placement plate, and the distance between the two limit baffles is less than the width of the unloading plate;

[0020] The second material storage rack has the same structural arrangement as the first material storage rack.

[0021] Preferably, it further comprises a base, the top surface of which is provided with a production plane, and the unloading slide rail unit, the feeding conveyor belt, the first transfer mechanism, the second transfer mechanism and the auxiliary unloading mechanism are arranged on the production plane.

[0022] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0023] 1. By using a variable-pitch carrier, the first material is unloaded onto the variable-pitch carrier through the first transfer mechanism, and the size of the variable-pitch carrier is changed to adapt to the specifications of the unloading carrier, thereby achieving efficient production purposes.

[0024] 2. The clamping unit of the first transfer mechanism can also be variable in pitch, so as to cooperate with the variable pitch carrier to achieve variable pitch adjustment in both the horizontal and vertical directions, thereby improving the flexibility of adjustment and the adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the automatic speaker closing machine of the present invention;

[0026] Figure 2 for Figure 1 A magnified view of the area marked with A in the middle;

[0027] Figure 3 It is a partial schematic diagram of the automatic speaker closing machine of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the variable pitch carrier of the automatic loudspeaker closing machine of the present invention;

[0029] Figure 5 for Figure 4 A magnified view of the area marked with B in the middle;

[0030] Figure 6It is a structural schematic diagram of the unloading slide rail unit of the automatic speaker closing machine of the present invention;

[0031] Figure 7 It is a top view of the automatic speaker closing machine of the present invention having an auxiliary unloading mechanism;

[0032] Figure 8 The present invention is a schematic structural diagram of the automatic speaker closing machine with an auxiliary unloading mechanism.

[0033] Description of reference numerals:

[0034] 10. unloading slide rail unit; 101. unloading tray; 102. first material storage rack;

[0035] 1011, fixing block; 1012, loading cylinder; 1013, placing plate;

[0036] 1021, limit baffle; 1022, stop shaft;

[0037] 20. feeding conveyor belt; 201. feeding tray;

[0038] 30. First transfer mechanism; 301. First support frame; 302. Clamping unit; 303. Power unit;

[0039] 3021, longitudinal slide rail; 3022, second carrier block; 3023, longitudinal power module; 3024, transfer member; 3025, second limit strip;

[0040] 30251, second fixing hole; 30252, second strip hole; 30253, second limiting pin;

[0041] 40. Second transfer mechanism; 401. Second support frame;

[0042] 50, variable pitch carrier; 501, transverse slide rail; 502, first carrier block; 503, transverse power module; 504, first limit bar; 505, first limit pin;

[0043] 5041, first fixing hole; 5042, first strip hole;

[0044] 60, auxiliary unloading mechanism; 601, first auxiliary transfer mechanism; 602, auxiliary variable-pitch carrier; 603, second auxiliary transfer mechanism; 604, auxiliary unloading slide rail unit; 605, second storage rack;

[0045] 70. Base. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] In addition, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] When an element is referred to as being “fixed to” or “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0049] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances. Example

[0050] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the present embodiment provides an automatic speaker tray closing machine, including a feed slide rail unit 10, a feed conveyor belt 20, a first transfer mechanism 30 and a second transfer mechanism 40, the feed conveyor belt 20 and the feed slide rail unit 10 are arranged at intervals, a feed tray 201 is arranged on the feed conveyor belt 20, and a variable distance tray 50 is arranged between the feed slide rail unit 10 and the feed conveyor belt 20; the feed tray 101 is arranged on the feed slide rail unit 10; the variable distance tray 50 is provided with a transverse slide rail 501, a plurality of first carrier blocks 502 arranged on the transverse slide rail 501, and a plurality of first carrier blocks 502 are driven by the variable distance tray 50; 02 A lateral power module 503 that is combined or separated at intervals; the first transfer mechanism 30 is provided with a first support frame 301 that is elevated itself, and the first transfer mechanism 30 is reciprocatingly arranged between the variable-distance carrier 50 and the feeding conveyor belt 20, and the first transfer mechanism 30 is used to transfer the product from the feeding carrier 201 to the variable-distance carrier 50; the second transfer mechanism 40 is provided with a second support frame 401 that is elevated itself, and the second transfer mechanism 40 is reciprocatingly arranged between the variable-distance carrier 50 and the unloading slide rail unit 10; the second transfer mechanism 40 is used to transfer the product from the variable-distance carrier 50 to the unloading carrier 101.

[0051] Specifically, the unloaded product is placed on the feeding tray 201, and is transported to the position of the first transfer mechanism 30 by the feeding conveyor belt 20, and then stops or the feeding tray 201 is lifted, and the first transfer mechanism 30 transfers the product on the feeding tray 201 to the variable-pitch tray 50 (the transfer method can be vacuum adsorption, magnetic adsorption, or pneumatic clamping, etc.). At this time, the variable-pitch tray 50 can push the first carrier block 502 through the transverse power module 503 (which can be driven by a linear motor or a cylinder or a hydraulic cylinder), so that multiple first carrier blocks 502 are pressed against each other in turn and merged along the transverse slide rail 501, so as to achieve the purpose of variable-pitch adjustment, so that the variable-pitch tray 50 has the same specifications as the unloaded tray 101. Then, the products in the variable-distance carrier 50 are transferred to the unloading carrier 101 through the second transfer mechanism 40, and output through the unloading slide rail unit 10 to achieve the purpose of automatic unloading, thereby achieving adaptation between carriers of different specifications and achieving the effect of automatic and efficient production.

[0052] In this embodiment, the second transfer mechanism 40 includes a linear slide, a lifting cylinder, and a fixed plate with vacuum suction cups installed. The number of vacuum suction cups is the same as the number of product placement slots of the unloading tray 101, and is designed relative to the unloading tray 101. In this way, the fixed plate is installed on the lifting cylinder for lifting and moving; the lifting cylinder is installed on the linear slide for linear reciprocating driving to realize the transfer of products in the variable-pitch tray 50 to the unloading tray 101, completing the unloading action.

[0053] The design of the first support frame 301 and the second support frame 401 in this embodiment allows the first transfer mechanism 30 and the second transfer mechanism 40 to be located above the feeding conveyor belt 20, forming a hierarchical arrangement, making the structure of the automatic speaker closing machine more compact.

[0054] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the first transfer mechanism 30 includes a clamping unit 302 and a power unit 303 that drives the clamping unit 302 to move back and forth between the variable-pitch carrier 50 and the feeding conveyor 20. The clamping unit 302 includes a longitudinal slide rail 3021, a plurality of second carrier blocks 3022 slidably disposed on the longitudinal slide rail 3021, a longitudinal power module 3023 that drives the plurality of second carrier blocks 3022 to merge or separate at intervals, and a plurality of transfer members 3024 disposed on the slide block. The transfer members 3024 are used to transfer the product from the feeding carrier 201 to the variable-pitch carrier 50. The power unit 303 includes a linear slide and a lifting cylinder. The clamping unit 302 is installed on the lifting cylinder for lifting and lowering; the lifting cylinder is installed on the linear slide for linear reciprocating driving.

[0055] In this embodiment, a function of variable distance adjustment can also be designed in the first transfer mechanism 30 to achieve size adjustment in different directions and improve flexibility. Specifically, the second carrier block 3022 is pushed by the longitudinal power module 3023 (which can be driven by a linear motor or a cylinder or a hydraulic cylinder), so that multiple second carrier blocks 3022 are pressed against each other in turn and merged along the longitudinal slide rail 3021, so as to achieve the purpose of variable distance adjustment, so that the clamping unit 302 is adapted to the variable distance carrier 50. In this way, the size can be adjusted in the longitudinal direction, and the lateral size of the variable distance carrier 50 can be adjusted, which improves the flexibility of adjustment and can adapt to more types of carriers. Of course, if the unloading carrier 101 is the same as the feeding carrier 201, no adjustment is required, and the unloading operation can be performed directly.

[0056] When in use, the clamping unit 302 is driven by the power unit 303 to move to the feeding tray 201, and the clamping unit 302 is driven down by the lifting cylinder to adsorb or clamp the product on the feeding tray 201 through the transfer member 3024, and then rise back to its original position. At this time, the second carrier block 3022 can be adjusted according to the needs. After the variable distance adjustment is completed, the linear slide is moved horizontally so that the transfer member 3024 is located above the variable distance tray 50, and then the lifting cylinder is driven again to place the product on the variable distance tray 50, and then reset, and so on and so forth, to achieve the purpose of efficient transfer and variable distance adjustment.

[0057] Furthermore, in this embodiment, the transfer member 3024 is a vacuum suction cup, a magnetic suction member or a pneumatic clamp, which can be used according to the corresponding device of the product design. For example, a diaphragm can be adsorbed by a vacuum suction cup; a product with a magnetic material can be magnetically attracted by an electromagnet or a permanent magnet; and a pneumatic clamp can be used to clamp the product that is easy to grasp. It has good practicality and design flexibility.

[0058] like Figure 4 and Figure 5 As shown, in this embodiment, a first limit strip 504 is arranged between two adjacent first carrier blocks 502, one end of the first limit strip 504 is provided with a first fixing hole 5041 locked on one first carrier block 502, the other end of the first limit strip 504 is provided with a first bar hole 5042, and the other first carrier block 502 is provided with a first limit pin 505 that penetrates through the first bar hole 5042 for limiting the position.

[0059] Specifically, after the multiple first carrier blocks 502 have completed the distance change, when they need to be reset, the first limit bar 504 can be used for limit adjustment. That is, when the lateral power module 503 drives in the reverse direction, one of the two adjacent first carrier blocks 502 will move along the first bar hole 5042 through the first limit pin 505 until it stops after hitting the top, thus achieving the purpose of separation.

[0060] like Figure 3 As shown, in this embodiment, a second limit strip 3025 is arranged between two adjacent second carrier blocks 3022, one end of the second limit strip 3025 is arranged with a second fixing hole 30251 locked on a second carrier block 3022, the other end of the second limit strip 3025 is arranged with a second bar hole 30252, and the other second carrier block 3022 is provided with a second limit pin 30253 that penetrates through the second bar hole 30252 for limiting the position.

[0061] Similarly, after the multiple second carrier blocks 3022 have completed the change of distance, when they need to be reset, the second limit bar 3025 can be used for limit adjustment. That is, when the longitudinal power module 3023 drives in the reverse direction, one of the two adjacent second carrier blocks 3022 will move along the second bar hole 30252 through the second limit pin 30253 until it stops after hitting the top, thus achieving the purpose of separation.

[0062] like Figure 7 and Figure 8As shown, the present embodiment also includes an auxiliary unloading mechanism 60, which is arranged between the unloading slide rail unit 10 and the feeding conveyor belt 20 and forms an independent unloading assembly line, and the auxiliary unloading mechanism 60 is provided with a first auxiliary transfer mechanism 601, an auxiliary variable-pitch carrier 602, a second auxiliary transfer mechanism 603 and an auxiliary unloading slide rail unit 604; the auxiliary variable-pitch carrier 602 is arranged between the auxiliary unloading slide rail unit 604 and the feeding conveyor belt 20, and the first auxiliary transfer mechanism 601 is arranged to reciprocate between the auxiliary variable-pitch carrier 602 and the feeding conveyor belt 20, the second auxiliary transfer mechanism 603 is reciprocatingly arranged between the auxiliary variable-distance carrier 602 and the auxiliary unloading slide rail unit 604, and the first auxiliary transfer mechanism 601 is arranged between the first transfer mechanism 30 and the end of the feeding conveyor belt 20; the first auxiliary transfer mechanism 601 has the same structural arrangement as the first transfer mechanism 30; the auxiliary variable-distance carrier 602 has the same structural arrangement as the variable-distance carrier 50, the second auxiliary transfer mechanism 603 has the same structural arrangement as the second transfer mechanism, and the auxiliary unloading slide rail unit 604 has the same structural arrangement as the unloading slide rail unit 10.

[0063] In this embodiment, the auxiliary unloading mechanism 60 can be another first transfer mechanism 30, a variable-distance carrier 50, a second transfer mechanism 40 and an unloading slide rail unit 10, forming two unloading lines for the feeding conveyor 20. Of course, multiple unloading lines can be set as needed to improve the efficiency of unloading. Alternatively, when there are more product placement slots in the feeding carrier 201 than in the unloading carrier 101, the auxiliary unloading mechanism 60 can complete all unloading actions on the feeding carrier 201.

[0064] Specifically, the feed tray 201 is a product placement slot with 4*6 specifications, the unloading tray 101 is a product placement slot with 4*4 specifications, the variable-pitch tray 50 is a product placement slot with 4*4 specifications, and the second transfer mechanism 40 and the clamping unit 302 are both vacuum suction cups with 4*4 specifications. The clamping unit 302 of the first transfer mechanism 30 clamps 4*4 products on the feed tray 201, and through two horizontal and vertical variable distances, the second transfer mechanism 40 can align the products on the variable-pitch tray 50 and transfer and place them on the unloading tray 101, completing the unloading of the assembly line at this location.

[0065] At this time, there are two rows or two columns of eight products left on the feeding tray 201, which will be transported to the position of the auxiliary unloading mechanism 60 through the feeding conveyor belt 20. The first auxiliary transfer mechanism 601 will clamp the remaining 2*4 products on the feeding tray 201. After two horizontal and vertical changes in pitch, the second auxiliary transfer mechanism 603 can align the products on the auxiliary variable pitch tray 602 and transfer them to the unloading tray 101, completing the purpose of unloading the remaining products on the feeding tray 201. In addition, the auxiliary unloading mechanism 60 can fill the unloading tray 101 with products of 4*4 specifications through two unloading operations, thus achieving the effect of completely unloading the feeding tray 201, solving the problem of differences in specifications and quantities between the feeding tray 201 and the unloading tray 101, and improving practicality.

[0066] Furthermore, if Figure 7 and Figure 8 As shown, in this embodiment, a first material storage rack 102 is arranged at the end of the unloading slide rail unit 10, and a second material storage rack 605 is arranged at the end of the auxiliary unloading slide rail unit 604. The first material storage rack 102 and the second material storage rack 605 are both material storage racks, and the unloading carrier 101 can be placed in a stacked manner to form a certain storage, so as to carry out batch transportation through the material storage racks, reduce the frequency of transportation, and improve practicality.

[0067] Furthermore, if Figure 6 As shown, in this embodiment, the unloading carrier 101 includes a fixed block 1011 arranged on the unloading slide rail unit 10, a loading cylinder 1012 arranged on the fixed block 1011, and a placement plate 1013 arranged on the output shaft of the loading cylinder 1012. The unloading carrier 101 is arranged on the placement plate 1013, the loading cylinder 1012 can be a dual-axis cylinder, and the unloading slide rail unit 10 can be a linear slide.

[0068] Specifically, the unloading slide rail unit 10 drives the fixed block 1011 (which can be a slider) to move back and forth, and the unloading tray 101 filled with products is moved to the bottom of the storage rack. Then, the loading cylinder 1012 can drive the unloading tray 101 to be lifted so that the unloading tray 101 can be placed in the storage rack, thereby realizing lifted stacking on the storage rack. A pair of baffles that can only be flipped up are provided at the bottom of the storage rack, thereby achieving the effect of stacking.

[0069] Furthermore, if Figure 6As shown, in this embodiment, the bottom of the first storage rack 102 is provided with two symmetrical and upwardly turned limit baffles 1021 and a plurality of stop shafts 1022 for resisting and limiting the limit baffles 1021 in a horizontal position; the distance between the two limit baffles 1021 is greater than the width of the placement plate 1013, and the distance between the two limit baffles 1021 is less than the width of the unloading tray 101, and the second storage rack 605 has the same structural arrangement as the first storage rack 102. In this way, the purpose of stacking from bottom to top is achieved, and the effect of storage and placement is achieved.

[0070] like Figure 7 and Figure 8 As shown, the present embodiment also includes a base 70, the top surface of which is provided with a production plane, on which the unloading rail unit 10, the feeding conveyor belt 20, the first transfer mechanism 30, the second transfer mechanism 40 and the auxiliary unloading mechanism 60 are provided. Universal wheels can be installed under the base 70, so that the entire loudspeaker automatic closing machine can be moved and transported conveniently, and the power line, the cylinder pipeline and the power supply and other electrical parts can be arranged through the base 70, so that the loudspeaker automatic closing machine has a high degree of integration, and can be moved to the corresponding place, and the operation can be carried out by connecting the power, thereby improving the practicality.

[0071] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A speaker automatic closing machine, characterized in that: include: Unloading slide rail unit; A feeding conveyor belt is arranged at a distance from the unloading slide rail unit, a feeding tray is arranged on the feeding conveyor belt, and a variable distance tray is arranged between the unloading slide rail unit and the feeding conveyor belt; a unloading tray is arranged on the unloading slide rail unit; The variable-pitch carrier is provided with a transverse slide rail, a plurality of first carrier blocks arranged on the transverse slide rail, and a transverse power module for driving the plurality of first carrier blocks to merge or separate at intervals; the variable-pitch carrier is used to push the plurality of first carrier blocks through the transverse power module, so that the plurality of first carrier blocks are pressed against each other in sequence and merged along the transverse slide rail; A first transfer mechanism, which is provided with a first support frame that elevates itself, the first transfer mechanism is reciprocatingly arranged between the variable-distance carrier and the feeding conveyor, and the first transfer mechanism is used to transfer the product from the feeding carrier to the variable-distance carrier; A second transfer mechanism is provided with a second support frame which elevates itself, and the second transfer mechanism is reciprocatingly arranged between the variable-distance carrier and the unloading slide rail unit; the second transfer mechanism is used to transfer the product from the variable-distance carrier to the unloading carrier; The first transfer mechanism includes a clamping unit and a power unit driving the clamping unit to move back and forth between the variable-distance carrier and the feeding conveyor belt, the clamping unit includes a longitudinal slide rail, a plurality of second carrier blocks slidably arranged on the longitudinal slide rail, a longitudinal power module driving the plurality of second carrier blocks to merge or separate at intervals, and a plurality of transfer members arranged on a slide block, the transfer members are used to transfer the product from the feeding carrier to the variable-distance carrier; And an auxiliary unloading mechanism, which is arranged between the unloading slide rail unit and the feeding conveyor belt to form an independent unloading assembly line, and the auxiliary unloading mechanism is sequentially provided with a first auxiliary transfer mechanism, an auxiliary variable-distance carrier, a second auxiliary transfer mechanism and an auxiliary unloading slide rail unit along the assembly line.

2. The automatic speaker closing machine according to claim 1, characterized in that: The transfer member is a vacuum suction cup, a magnetic suction member or a pneumatic clamp.

3. The automatic speaker closing machine according to claim 1, characterized in that: A first limit strip is arranged between two adjacent first carrier blocks, one end of the first limit strip is provided with a first fixing hole locked on one of the first carrier blocks, the other end of the first limit strip is provided with a first bar hole, and the other first carrier block is provided with a first limit pin that passes through the first bar hole and limits the position.

4. The automatic speaker closing machine according to claim 1, characterized in that: A second limit strip is arranged between two adjacent second carrier blocks, one end of the second limit strip is provided with a second fixing hole locked on one of the second carrier blocks, the other end of the second limit strip is provided with a second strip hole, and the other second carrier block is provided with a second limit pin that passes through the second strip hole and limits the position.

5. The automatic speaker closing machine according to claim 1, characterized in that: The auxiliary variable-pitch carrier is arranged between the auxiliary unloading slide rail unit and the feeding conveyor belt, the first auxiliary transfer mechanism is arranged back and forth between the auxiliary variable-pitch carrier and the feeding conveyor belt, the second auxiliary transfer mechanism is arranged back and forth between the auxiliary variable-pitch carrier and the auxiliary unloading slide rail unit, and the first auxiliary transfer mechanism is arranged between the first transfer mechanism and the end of the feeding conveyor belt; The first auxiliary transfer mechanism has the same structural setting as the first transfer mechanism; the auxiliary variable-pitch carrier has the same structural setting as the variable-pitch carrier, the second auxiliary transfer mechanism has the same structural setting as the second transfer mechanism, and the auxiliary unloading slide rail unit has the same structural setting as the unloading slide rail unit.

6. The automatic speaker closing machine according to claim 5, characterized in that: A first material storage rack is arranged at the end of the unloading slide rail unit, and a second material storage rack is arranged at the end of the auxiliary unloading slide rail unit.

7. The automatic speaker closing machine according to claim 6, characterized in that: The unloading tray comprises a fixed block arranged on the unloading slide rail unit, a loading cylinder arranged on the fixed block, and a placement tray arranged on the output shaft of the loading cylinder, and the unloading tray is arranged on the placement tray.

8. The automatic speaker closing machine according to claim 7, characterized in that: The bottom of the first material storage rack is provided with two symmetrical and upwardly turned limit baffles and a plurality of stop shafts for resisting and limiting the limit baffles in a horizontal position; The distance between the two limit baffles is greater than the width of the placement plate, and the distance between the two limit baffles is less than the width of the unloading plate; The second material storage rack has the same structural arrangement as the first material storage rack.

9. The automatic speaker closing machine according to claim 5, characterized in that: It also includes a base, the top surface of which is provided with a production plane, and the unloading slide rail unit, the feeding conveyor belt, the first transfer mechanism, the second transfer mechanism and the auxiliary unloading mechanism are arranged on the production plane.

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